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WO2016121277A1 - Procédé de fabrication de tôle d'acier traitée en surface - Google Patents

Procédé de fabrication de tôle d'acier traitée en surface Download PDF

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Publication number
WO2016121277A1
WO2016121277A1 PCT/JP2015/085948 JP2015085948W WO2016121277A1 WO 2016121277 A1 WO2016121277 A1 WO 2016121277A1 JP 2015085948 W JP2015085948 W JP 2015085948W WO 2016121277 A1 WO2016121277 A1 WO 2016121277A1
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WIPO (PCT)
Prior art keywords
steel sheet
tin
compound layer
layer
phosphate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2015/085948
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English (en)
Japanese (ja)
Inventor
吉村　国浩
松原　政信
真利江 佐々木
晃周 吉田
健司 梁田
宗光 弘津
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyo Kohan Co Ltd
Toyo Seikan Group Holdings Ltd
Toyo Seikan Co Ltd
Original Assignee
Toyo Kohan Co Ltd
Toyo Seikan Kaisha Ltd
Toyo Seikan Co Ltd
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Filing date
Publication date
Application filed by Toyo Kohan Co Ltd, Toyo Seikan Kaisha Ltd, Toyo Seikan Co Ltd filed Critical Toyo Kohan Co Ltd
Priority to JP2016530023A priority Critical patent/JP5986344B1/ja
Publication of WO2016121277A1 publication Critical patent/WO2016121277A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D9/00—Electrolytic coating other than with metals
    • C25D9/04—Electrolytic coating other than with metals with inorganic materials
    • C25D9/08—Electrolytic coating other than with metals with inorganic materials by cathodic processes

Definitions

  • the present invention relates to a method for producing a surface-treated steel sheet.
  • Patent Document 1 discloses a non-chromium surface treatment technique for forming a metal oxygen compound film containing aluminum on the surface of a base material by cathodic electrolysis using an electrolytic treatment liquid containing aluminum ions. ing.
  • Patent Document 1 when the surface-treated steel sheet is used in a food can or the like and stored for a long period of time, it reacts with sulfur contained in the food or drink and the surface turns black. There is a problem that changes occur.
  • An object of the present invention is to provide a surface-treated steel sheet capable of effectively suppressing sulfide blackening.
  • the present inventors formed a phosphate compound layer containing tin phosphate on a tin-plated steel sheet by immersion treatment using an immersion treatment solution containing phosphate ions, and aluminum was formed on the phosphate compound layer. It has been found that the above object can be achieved by forming an aluminum oxygen compound layer containing an oxygen compound as a main component, and the present invention has been completed.
  • the tin-plated steel sheet obtained by performing tin plating on the steel sheet is subjected to an immersion treatment in which the tin-plated steel sheet is immersed in an immersion treatment solution containing phosphate ions without performing an electrolytic treatment.
  • a phosphoric acid compound layer forming step for forming a phosphoric acid compound layer containing 0.4 to 10 mg / m 2 as the amount of phosphorus on the plated steel sheet, and an electrolytic treatment liquid containing aluminum on the phosphoric acid compound layer were used.
  • An aluminum oxygen compound layer forming step of forming an aluminum oxygen compound layer by electrolytic treatment is provided.
  • the production method of the present invention it is preferable to use a treatment liquid having a pH of 1.0 to 4.0 as the immersion treatment liquid in the phosphate compound layer forming step.
  • the temperature of the immersion treatment liquid when dipping the tin-plated steel sheet is 35 to 55 ° C. in the phosphate compound layer forming step.
  • the total amount of aluminum contained in each layer formed on the tin-plated steel sheet is preferably 3 to 40 mg / m 2 .
  • the processing liquid whose phosphoric acid content is 0.55 g / L or less in the amount of phosphorus in the said aluminum oxygen compound layer formation process is 0.55 g / L or less in the amount of phosphorus in the said aluminum oxygen compound layer formation process as said electrolytic processing liquid.
  • the process liquid which does not contain F ion substantially as said electrolytic treatment liquid in the said aluminum oxygen compound layer formation process is preferable to use as the tin-plated steel sheet.
  • the steel sheet, a tin alloy layer formed on the steel sheet, and a tin amount formed on the tin alloy layer is 0.5 g / m 2 or more. It is preferable to use a tin-plated steel sheet comprising a tin-plated layer.
  • a phosphoric acid compound layer having a phosphorus amount of 0.4 to 10 mg / m 2 is formed on a tin-plated steel sheet by dipping treatment using a dipping treatment liquid containing phosphate ions.
  • the aluminum oxygen compound layer contains phosphate.
  • action of the phosphate in an aluminum oxygen compound layer can be provided.
  • FIG. 1 is a cross-sectional view showing a configuration of a surface-treated steel sheet 1 according to an embodiment of the present invention.
  • the surface-treated steel sheet 1 of the present embodiment is obtained by immersing a tin-plated steel sheet 10 in which a tin-plated layer 12 is formed on a steel sheet 11 in an immersion treatment solution containing phosphate ions.
  • the phosphoric acid compound layer 20 is formed while dissolving a part of the tin plating layer 12, and then an electrolytic treatment is performed in an electrolytic treatment solution containing Al ions, so that phosphoric acid is deposited on the phosphoric acid compound layer 20.
  • the surface-treated steel sheet 1 of the present embodiment is not particularly limited, but can be used as a member such as a can container or a can lid, for example.
  • the surface-treated steel sheet 1 is used as a member such as a can container or a can lid, the surface-treated steel sheet 1 is used as it is (for non-coating applications in which a coating layer is not formed on the surface), and an uncoated can container or can
  • a cover layer made of an organic material may be formed on the aluminum oxygen compound layer 30 of the surface-treated steel sheet 1 and then formed into a can container or a lid. .
  • the tin-plated steel sheet 10 that is the base material of the surface-treated steel sheet 1 of the present invention is obtained by performing tin plating on the steel sheet 11 and forming a tin-plated layer 12 on the steel sheet 11.
  • the steel plate 11 for performing the tin plating is not particularly limited as long as it is excellent in drawing workability, drawing ironing workability, workability of drawing and bending back work (DTR), for example, Further, a hot-rolled steel sheet based on an aluminum killed steel continuous cast material, a cold-rolled steel sheet obtained by cold rolling these hot-rolled steel sheets, or the like can be used.
  • a nickel plating layer is formed on the above-described steel plate, and this is heated and thermally diffused to form a nickel-iron alloy layer between the steel plate and the nickel plating layer. By doing so, a nickel-plated steel sheet with improved corrosion resistance may be used. Further, when the nickel plating layer is formed in a granular shape, the adhesion of the coating layer can be enhanced by the anchor effect.
  • the method for applying tin plating to the steel plate 11 is not particularly limited, and examples thereof include a method using a known ferrostan bath, halogen bath, sulfuric acid bath, or the like.
  • the method of performing nickel plating is not particularly limited, and a known Watt bath made of nickel sulfate and nickel chloride can be used.
  • a bath composition made of nickel sulfate and ammonium sulfate is used. Is preferred.
  • the tin-plated steel sheet 10 obtained by performing tin plating in this way is subjected to a rapid cooling process (reflow process) after being heated to a temperature higher than the melting temperature of tin, whereby the steel sheet 11 and tin A tin-iron alloy layer may be formed between the plating layer 12 and the plating layer 12.
  • the obtained tin-plated steel sheet 10 has a tin-iron alloy layer and a tin-plated layer 12 formed in this order on the steel sheet 11, and has corrosion resistance. improves.
  • a nickel plating layer is present on the base, a tin-nickel or tin-nickel-iron alloy can also be formed between the steel plate 11 and the tin plating layer 12 by this reflow process.
  • the oxide film layer made of SnO x tends to reduce the adhesion of the phosphoric acid compound layer 20 formed on the tin-plated steel sheet 10 when the film amount is too large, while the tin-plated steel sheet when the film amount is too small. Since 10 tends to be blackened easily, it is desirable to adjust to an appropriate film amount. Therefore, in this embodiment, you may perform the process which removes a part or all of the oxide film layer of a surface, and adjusts the film quantity of an oxide film layer with respect to the tin plating steel plate 10.
  • an aqueous carbonate carbonate solution such as sodium carbonate or sodium hydrogencarbonate is used for the tin-plated steel sheet 10 under the conditions of a current density of 0.5 to 20 A / dm 2 and an energization time of 0.1 to 1.0 seconds.
  • the time for immersing the tin-plated steel sheet 10 in the acidic aqueous solution is preferably 2 seconds or less.
  • the thickness of the tin plating layer 12 formed on the steel plate 11 is not particularly limited, and may be appropriately selected according to the intended use of the surface-treated steel plate 1 to be manufactured.
  • the tin amount is preferably 0.5 g / m 2. Above, more preferably 0.5 to 15 g / m 2 .
  • the thickness of the nickel plating layer is not particularly limited, and the thickness of the nickel plating layer is preferably 0.01 to 15 g / m 2 in terms of nickel amount.
  • the average particle diameter of the granular nickel is preferably 0.01 to 0.7 ⁇ m.
  • the total thickness of the tin-plated steel sheet 10 is not particularly limited and may be appropriately selected depending on the intended use of the surface-treated steel sheet 1 to be manufactured, but is preferably 0.07 to 0.4 mm.
  • the phosphoric acid compound layer 20 is a layer containing tin phosphate, and the above-described tin-plated steel sheet 10 is immersed in an immersion treatment solution that is an aqueous solution containing phosphate ions (hereinafter referred to as “immersion treatment”). .).
  • immersion treatment an aqueous solution containing phosphate ions
  • electrolytic treatment preparing the tin-plated steel sheet 10 and the counter electrode and energizing them in the immersion treatment liquid
  • tin is dissolved from the tin-plated steel sheet 10 and divalent tin ions (Sn 2+ ). Will occur.
  • FIG. 2 is a conceptual diagram showing how the phosphoric acid compound layer 20 and the aluminum oxygen compound layer 30 are formed on the tin-plated steel sheet 10.
  • FIG. 2 an example of a reaction when the tin-plated steel sheet 10 is immersed in an immersion treatment liquid containing phosphate ions is shown. 2, cathodic electrolysis treatment for forming the aluminum oxygen compound layer 30 is performed on tin phosphate such as Sn 3 (PO 4 ) 2 formed as the phosphate compound layer 20. I showed the situation.
  • tin phosphate such as Sn 3 (PO 4 ) 2
  • tin phosphate compound as the phosphoric acid compound layer 20 and AlPO 4
  • aluminum oxygen compound layer 30 as AlPO 4 and Al 2 O 3 ⁇ nH 2 O and It is a figure which shows a mode that Al (OH) 3 was formed.
  • AlPO 4 is contained in both the phosphate compound layer 20 and the aluminum oxygen compound layer 30.
  • tin ions Sn 2+ generated from the tin-plated steel sheet 10 react with phosphate ions or the like in the immersion treatment liquid, and phosphoric acid such as Sn 3 (PO 4 ) 2. It is deposited on the tin-plated steel sheet 10 as tin. Further, tin ions Sn 2+ generated from the tin-plated steel sheet 10 are deposited on the tin-plated steel sheet 10 as tin oxide (SnO x ).
  • phosphoric acid H 3 PO 4
  • primary phosphate ions H 2 PO 4 ⁇
  • secondary phosphate ions HPO 4
  • 2- tertiary phosphate ion
  • phosphorous acid H 2 PHO 3
  • phosphite ion HPHO 3 ⁇ , PHO 3 2 ⁇
  • the surface of the tin-plated layer 12 is formed near the surface of the tin-plated layer 12.
  • the formed tin oxide is reduced to produce tin ions Sn 2+ , and hydroxide ions (OH ⁇ ) are produced to raise the pH.
  • hydroxide ions OH ⁇
  • phosphoric acid H 3 PO 4
  • primary phosphate ions H 2 PO 4 ⁇
  • phosphorous acid H 2 PHO 3
  • phosphorous acid H 2 PHO 3
  • acid ions HPHO 3 ⁇ , PHO 3 2 ⁇
  • tin ions Sn 2+ in the immersion treatment liquid are combined with the above-described primary phosphate ions (H 2 PO 4 ⁇ ) and phosphite ions (HPHO 3 ⁇ , PHO 3 2 ⁇ ) and the like.
  • the phosphoric acid compound layer 20 is formed.
  • the surface-treated steel sheet 1 obtained by forming the phosphate compound layer 20 containing tin phosphate by the above-described immersion treatment is excellent in resistance to sulfur blackening. Furthermore, in this embodiment, when the coating layer 40 made of an organic material is formed on the surface of the surface-treated steel sheet 1 by forming the phosphate compound layer 20 containing tin phosphate by the above-described immersion treatment, The adhesion of the layer 40 is excellent.
  • the oxide film that covers the tin-plated layer 12 of the surface-treated steel sheet 1 by the heat of baking A layer grows, and the aluminum oxygen compound layer 30 and the covering layer 40 may peel from the oxide film layer.
  • the phosphoric acid compound layer 20 described above it is possible to suppress the growth of the oxide film layer that covers the tin plating layer 12 when forming the coating layer 40, and as a result, the surface of the surface-treated steel sheet 1.
  • the adhesiveness of the coating layer 40 to be formed can be improved.
  • the favorable aluminum oxygen compound layer 30 is formed on the phosphate compound layer 20 by forming the phosphate compound layer 20 by the immersion treatment as described above. That is, the present inventors performed immersion treatment on the tin-plated steel sheet 10, and as described above, primary phosphate ions (H 2 PO 4 ⁇ ) and phosphite ions (HPHO 3 ⁇ , PHO 3 2). - ) And the like react with tin ions to form tin phosphate, and the chemical bonding state and surface form of this tin phosphate are used in the electrolytic treatment liquid used when the aluminum oxygen compound layer 30 described later is formed by electrolytic treatment. The knowledge that it becomes easy to dissolve was obtained.
  • primary phosphate ions H 2 PO 4 ⁇
  • phosphite ions HPHO 3 ⁇ , PHO 3 2).
  • the present inventors are formed by dissolution of tin phosphate in the phosphate compound layer 20 in the electrolytic treatment solution. It is found that the phosphate ions that are hardly soluble in acid and alkali are precipitated as the aluminum oxygen compound layer 30 by the formed phosphate ions, and the corrosion resistance of the formed aluminum oxygen compound layer 30 can be improved. became. Thereby, the surface-treated steel sheet 1 to be obtained has sufficient corrosion resistance even when the coating layer 40 mainly composed of an organic material is not formed on the surface, and as a metal container for non-coating applications in which the coating layer 40 is not formed. Can also be suitably used.
  • an electrolytic treatment for forming the aluminum oxygen compound layer 30 when performing a cathodic electrolytic treatment (electrolytic treatment using the tin-plated steel sheet 10 on which the phosphoric acid compound layer 20 is formed as a cathode), as shown in FIG.
  • a cathodic electrolytic treatment electrolytic treatment using the tin-plated steel sheet 10 on which the phosphoric acid compound layer 20 is formed as a cathode
  • tin oxide and the like are reduced to produce tin ions Sn 2+ and hydroxide ions (OH ⁇ ) to be produced, which raises the pH.
  • the ionization equilibrium of the phosphate ion in the electrolytic treatment solution is inclined toward the higher the abundance ratio of the tertiary phosphate ion (PO 4 3 ⁇ ) as the pH of the electrolytic treatment solution is higher.
  • the phosphate precipitated as the aluminum oxygen compound layer 30 by the tertiary phosphate ions (PO 4 3 ⁇ ) becomes particularly insoluble in acids and alkalis. Corrosion resistance is further improved.
  • both the phosphate compound layer 20 and the aluminum oxygen compound layer 30 may contain tin phosphate and aluminum phosphate.
  • the immersion treatment liquid for forming the phosphate compound layer 20 includes phosphoric acid (H 3 PO 4 ), sodium dihydrogen phosphate (NaH 2 PO) as compounds for generating phosphate ions in the immersion treatment liquid. 4 ), disodium hydrogen phosphate (Na 2 HPO 4 ), phosphorous acid (H 3 PO 3 ) and the like can be used. These phosphoric acids and phosphates may be used alone or in combination, and among them, a mixture of phosphoric acid and sodium dihydrogen phosphate precipitates tin phosphate well as the phosphoric acid compound layer 20. This is preferable.
  • the concentration of phosphate ions in the immersion treatment solution is not particularly limited, but is preferably 5 to 200 g / L in terms of phosphorus amount.
  • concentration of phosphate ions in the immersion treatment liquid is not particularly limited, but is preferably 5 to 200 g / L in terms of phosphorus amount.
  • the pH of the immersion treatment liquid is preferably 1 to 4, more preferably 1.3 to 3.7. If the pH is less than 1, the formed tin phosphate may be dissolved. On the other hand, if the pH exceeds 4, the dissolution of the oxide film layer on the surface of the tin-plated steel sheet 10 tends to be insufficient, and the phosphate compound layer 20 is difficult to be formed in the portion where a large amount of the oxide film layer remains. There is a possibility that the homogeneous phosphoric acid compound layer 20 cannot be formed on the plated steel sheet 10. In addition, when the pH exceeds 4, the formed tin phosphate becomes difficult to dissolve in the electrolytic treatment liquid for forming the aluminum oxygen compound layer 30, and the aluminum oxygen compound layer 30 is appropriately made to contain a phosphate. It is not possible to obtain the effect of improving the corrosion resistance of the aluminum oxygen compound layer 30 described above.
  • the temperature of the immersion treatment liquid is preferably 35 to 55 ° C, more preferably 40 to 50 ° C. If the temperature is too low, the phosphoric acid compound layer 20 may be difficult to be formed. On the other hand, if the temperature is too high, the formed phosphoric acid compound layer 20 becomes non-uniform and mottles are generated, and although there is no problem in quality, the appearance quality may be deteriorated.
  • the tin-plated steel sheet 10 on which the phosphoric acid compound layer 20 is formed is washed with water as appropriate, and then subjected to electrolytic treatment in an electrolytic treatment liquid containing Al ions, so that aluminum is formed on the phosphoric acid compound layer 20.
  • An oxygen compound is deposited to form the aluminum oxygen compound layer 30.
  • the electrolytic treatment method may be either anodic electrolytic treatment or cathodic electrolytic treatment. However, from the viewpoint that the aluminum oxygen compound layer 30 can be satisfactorily formed, the cathodic electrolytic treatment is preferable.
  • the content of Al ions in the electrolytic treatment solution for forming the aluminum oxygen compound layer 30 can be appropriately selected according to the coating amount of the aluminum oxygen compound layer 30 to be formed. And preferably 0.5 to 10 g / l, more preferably 1 to 5 g / l.
  • the stability of the electrolytic treatment liquid can be improved and the deposition efficiency of the aluminum oxygen compound can be improved.
  • nitrate ions may be added to the electrolytic treatment solution used for forming the aluminum oxygen compound layer 30.
  • the content of nitrate ions in the electrolytic treatment liquid is preferably 11,500 to 25,000 ppm by weight.
  • the electrolytic treatment liquid used for forming the aluminum oxygen compound layer 30 does not contain F ions.
  • the electrolytic treatment liquid used for forming the aluminum oxygen compound layer 30 it is possible to form a dense aluminum oxygen compound layer 30 with a small particle size by not containing F ions. It can be excellent in resistance to sulfur blackening.
  • F ions are contained in the electrolytic treatment solution, SnF 2 is formed, which is taken in by the aluminum oxygen compound layer 30, thereby reducing sulfur blackening resistance and corrosion resistance.
  • the said electrolytic treatment liquid should just contain F ion substantially, and may contain F ion as long as it is the amount of impurities. That is, since F atoms are slightly contained in industrial water or the like, F ions derived from such F atoms may be mixed in the electrolytic treatment solution.
  • F ions in the electrolytic treatment liquid there are F ions forming complex ions with metals, free F ions, etc., and the total amount of these F ions is preferably If it is 50 ppm by weight or less, more preferably 20 ppm or less, and even more preferably 5 ppm or less, the amount of F ions contained in the electrolytic treatment liquid is about the amount of impurities, and the electrolytic treatment liquid substantially contains F ions. It can be judged that it is not.
  • examples of the method for measuring the contents of F ions and nitrate ions in the electrolytic treatment solution include a method of measuring by quantitative analysis by ion chromatography.
  • the electrolytic treatment solution for forming the aluminum oxygen compound layer 30 includes at least one of organic acids (citric acid, lactic acid, tartaric acid, glycolic acid, etc.), polyacrylic acid, polyitaconic acid, and phenol resin.
  • organic acids citric acid, lactic acid, tartaric acid, glycolic acid, etc.
  • polyacrylic acid polyitaconic acid
  • phenol resin phenol resin
  • the above additives may be added.
  • an organic material can be contained in the formed aluminum oxygen compound layer 30 by appropriately adding these additives alone or in combination to the electrolytic treatment liquid.
  • the adhesion of the coating layer 40 formed on the top can be improved.
  • the electrolytic treatment liquid for forming the aluminum oxygen compound layer 30 it is desirable to adjust the content of phosphate ions, and the content of phosphate ions in the electrolytic treatment liquid is the amount of phosphorus, preferably 0. 0.55 g / L or less, more preferably 0.33 g / L or less, and still more preferably 0.11 g / L.
  • the aluminum oxygen compound layer 30 when the aluminum oxygen compound layer 30 is formed by electrolytic treatment, tin phosphate and the like are dissolved from the phosphate compound layer 20 in the electrolytic treatment liquid used for forming the aluminum oxygen compound layer 30. Then, phosphate ions are generated. If the amount of generated phosphate ions is too large, the phosphate ions bind to Al ions and precipitate as aluminum phosphate in the electrolytic treatment liquid. As a result, in the electrolytic treatment liquid, the aluminum oxygen compound layer The amount of Al ions used for forming 30 decreases, and the formation efficiency of the aluminum oxygen compound layer 30 decreases. Further, the aluminum phosphate compound precipitated in the electrolytic treatment solution causes the formed aluminum oxygen compound layer 30 to become non-uniform and mottled, and there is no problem in quality, but the appearance quality tends to deteriorate. .
  • the content of phosphate ions in the electrolytic treatment liquid for forming the aluminum oxygen compound layer 30 is in the above range, the formed aluminum oxygen compound layer 30 becomes uniform, and the surface treatment to be obtained The appearance quality of the steel plate 1 is improved.
  • the aluminum oxygen compound layer 30 is formed by electrolytic treatment, it is preferable to use an intermittent electrolysis system in which a cycle of energization and deenergization is repeated.
  • the total energization time (energization and deenergization of the base material) is used.
  • the total energization time when the cycle is repeated a plurality of times is preferably 1.5 seconds or less, more preferably 1 second or less.
  • the number of cycles of energization and deenergization is preferably 1 to 10 times, and may be adjusted along with the energization time so that the aluminum content in the aluminum oxygen compound layer 30 is appropriate.
  • the appropriate content of aluminum in the aluminum oxygen compound layer 30 is preferably 3 to 40 mg / m 2 , more preferably 5 to 20 mg / m 2 , still more preferably 5 to 15 mg / m 2 , and particularly preferably 5. 7 to 10.0 mg / m 2 .
  • any counter electrode may be used as long as it does not dissolve in the electrolytic treatment solution while the electrolytic treatment is being performed.
  • a titanium plate coated with iridium oxide or a titanium plate coated with platinum is preferred because it has a small overvoltage and is difficult to dissolve in an electrolytic treatment solution.
  • the aluminum oxygen compound layer 30 formed as described above is mainly composed of aluminum oxide or the like, but also includes aluminum hydroxide and phosphate.
  • the phosphate include aluminum phosphate and an oxygen compound containing phosphoric acid (Al (PO 4 ) y O z and the like).
  • This phosphate is an aluminum oxygen compound as described below.
  • tin phosphate A part of tin phosphate is dissolved, and phosphate ions such as aluminum phosphate and phosphate such as oxygen compound containing phosphoric acid are precipitated. Further, in the formation of the aluminum oxygen compound layer 30, tin ions Sn 2+ are generated in the electrolytic treatment solution by dissolution of the phosphate compound layer 20 or dissolution of exposed portions of the tin plating that is not coated with the phosphate compound. Therefore, a part of tin oxide (SnO x ) is included in the aluminum oxygen compound layer 30 in addition to tin phosphate.
  • SnO x tin oxide
  • the tin-plated steel sheet 10 is heated by the heat during baking.
  • the growth of the oxide film layer can be suppressed, and as a result, the adhesion of the coating layer 40 formed on the surface of the surface-treated steel sheet 1 can be improved.
  • the reason why such an effect can be obtained by including a phosphate in the aluminum oxygen compound layer 30 is not necessarily clear, but is considered as follows.
  • the phosphoric acid compound layer 20 obtained by the immersion treatment is easily dissolved in the electrolytic treatment solution used for forming the aluminum oxygen compound layer 30 in terms of the chemical bonding state and surface form of tin phosphate contained therein. It will be a thing.
  • the electrolytic treatment liquid when forming the aluminum oxygen compound layer 30 by electrolytic treatment, in the electrolytic treatment liquid, by the phosphate ions, phosphite ions, etc.
  • the tin phosphate of the phosphate compound layer 20 Phosphate precipitates as the aluminum oxygen compound layer 30, and the action of this phosphate can suppress the growth of the oxide film layer of the tin-plated steel sheet 10 due to heat during baking.
  • the adhesion of the coating layer 40 to be formed is improved.
  • the tin phosphate coating changes in quality over time, and initially the increase in the oxide film in the painting and baking process can be suppressed, but gradually becomes weaker, It is considered that the adhesion with the coating layer 40 is lowered.
  • the aluminum content in the aluminum oxygen compound layer 30 is preferably 3 to 20 mg / m 2 , more preferably 5 to 20 mg / m 2 , still more preferably 5 to 15 mg / m 2 , and particularly preferably 5.7 to 10. 0 mg / m 2 .
  • the aluminum content in the aluminum oxygen compound layer 30 is too small, the oxide film layer on the surface of the tin-plated steel sheet 10 increases when the coating layer 40 made of an organic material is formed by baking coating.
  • the aluminum oxygen compound layer 30 and the covering layer 40 tend to be easily peeled from the layer.
  • the aluminum content in the aluminum oxygen compound layer 30 is too large, the aluminum oxygen compound layer 30 may become brittle and cause cohesive failure.
  • the aluminum oxygen compound layer 30 contains phosphate, but the content ratio (P / P) of the phosphorus amount (mol / m 2 ) to the aluminum amount (mol / m 2 ) in the aluminum oxygen compound layer 30 (P / Al) is preferably 0.06 to 0.35, more preferably 0.06 to 0.20.
  • the content ratio (P / Al) is less than 0.06, an oxide film layer on the surface of the tin-plated steel sheet 10 grows by heat during baking when the coating layer 40 made of an organic material is formed by baking coating.
  • the aluminum oxygen compound layer 30 and the covering layer 40 tend to be easily peeled off from the oxide film layer.
  • the content ratio (P / Al) is more than 0.35, the formed aluminum oxygen compound layer 30 becomes non-uniform and mottles are generated. There is a tendency.
  • the surface-treated steel sheet 1 of the present embodiment is obtained.
  • the total amount of phosphorus contained in each layer (tin plating layer 12, phosphate compound layer 20, and aluminum oxygen compound layer 30) formed on the steel sheet 11 is preferably 0.4. ⁇ 10mg / m 2, more preferably 0.4 ⁇ 2.3mg / m 2. If the total amount of phosphorus contained in each layer is too small, an oxide film layer of the tin-plated steel sheet 10 grows due to heat during baking when the coating layer 40 made of an organic material is formed by baking, thereby oxidizing. The aluminum oxygen compound layer 30 and the coating layer 40 tend to be easily peeled from the film layer.
  • the total amount of phosphorus contained in each layer is too large, the content ratio of tin phosphate in the phosphate compound layer 20 increases, and this tin phosphate acts as an insulator, so that the aluminum oxygen compound layer 30 is formed.
  • the aluminum oxygen compound is deposited non-uniformly, and the aluminum oxygen compound layer 30 is formed with mottle and there is no problem in quality, but the appearance quality tends to deteriorate.
  • a method for measuring the total amount of phosphorus contained in each layer formed on the steel plate 11 for example, a method of quantitatively analyzing the obtained surface-treated steel plate 1 using a fluorescent X-ray analyzer. Is mentioned.
  • the surface-treated steel sheet 1 of this embodiment is not specifically limited, It can be used as members, such as a can container and a can lid.
  • the surface-treated steel sheet 1 is used as a member such as a can container or a can lid, the surface-treated steel sheet 1 is used as it is (used for non-coating applications in which the coating layer 40 is not formed on the surface).
  • thermoplasticity examples thereof include a resin and a thermosetting resin.
  • Thermoplastic resins include polyethylene, polypropylene, ethylene-propylene copolymers, ethylene-vinyl acetate copolymers, ethylene-acrylic ester copolymers, olefin resin films such as ionomers, and polyesters such as polyethylene terephthalate and polybutylene terephthalate.
  • a film, an unstretched film such as a polyvinyl chloride film or a polyvinylidene chloride film or a biaxially stretched film, or a polyamide film such as nylon 6, nylon 6, 6, nylon 11, or nylon 12 can be used.
  • non-oriented polyethylene terephthalate obtained by copolymerizing isophthalic acid is particularly preferable.
  • the organic material for comprising such a coating layer 40 may be used independently, and different organic materials may be blended and used.
  • the thermosetting resin epoxy-phenol resin, polyester resin, or the like can be used.
  • thermoplastic resin When the thermoplastic resin is coated as the coating layer 40, it may be a single-layer resin layer or a multilayer resin layer formed by coextrusion or the like.
  • a polyester resin having a composition with excellent adhesion is selected for the base layer, that is, the surface-treated steel sheet 1 side, and content resistance, that is, extraction resistance and flavor component non-adsorption on the surface layer This is advantageous because a polyester resin having a composition excellent in properties can be selected.
  • Examples of multilayer polyester resin layers are shown as surface layer / lower layer, polyethylene terephthalate / polyethylene terephthalate / isophthalate, polyethylene terephthalate / polyethylene / cyclohexylene dimethylene / terephthalate, polyethylene terephthalate / isolated with low isophthalate content.
  • Polyethylene terephthalate / isophthalate having a high phthalate / isophthalate content polyethylene terephthalate / isophthalate / [blend of polyethylene terephthalate / isophthalate and polybutylene terephthalate / adipate] and the like are of course not limited thereto.
  • the thickness ratio of the surface layer to the lower layer is preferably in the range of 5:95 to 95: 5.
  • the coating layer 40 has a resin compounding agent known per se, for example, an antiblocking agent such as amorphous silica, an inorganic filler, various antistatic agents, a lubricant, an antioxidant (for example, tocophenol), and an ultraviolet absorber. Etc. can be blended according to a known formulation.
  • an antiblocking agent such as amorphous silica, an inorganic filler, various antistatic agents, a lubricant, an antioxidant (for example, tocophenol), and an ultraviolet absorber.
  • Etc. can be blended according to a known formulation.
  • the thickness of the coating layer 40 formed on the surface-treated steel sheet 1 obtained according to the present invention is desirably 3 to 50 ⁇ m, particularly 5 to 40 ⁇ m in general with a thermoplastic resin coating.
  • the later thickness is preferably in the range of 1 to 50 ⁇ m, particularly 3 to 30 ⁇ m. When the thickness is less than the above range, the corrosion resistance becomes insufficient, and when the thickness exceeds the above range, a problem is likely to occur in terms of workability.
  • Formation of the coating layer 40 on the surface-treated steel sheet 1 obtained by the present invention can be performed by any means.
  • thermoplastic resin coating extrusion coating, cast film thermal bonding, biaxially stretched film It can be performed by a thermal bonding method or the like.
  • the thermal adhesion of the polyester resin to the surface-treated steel sheet 1 is performed by the amount of heat that the molten resin layer has and the amount of heat that the surface-treated steel sheet 1 has.
  • the heating temperature of the surface-treated steel sheet 1 is generally 90 ° C. to 290 ° C., particularly 100 ° C. to 230 ° C., while the laminating roll temperature is suitably 10 ° C. to 150 ° C.
  • the covering layer 40 formed on the surface-treated steel sheet 1 can also be formed by thermally bonding a polyester resin film previously formed by a T-die method or an inflation film-forming method to the surface-treated steel sheet 1. .
  • an unstretched film formed by a cast molding method in which the extruded film is rapidly cooled can be used, and this film is biaxially stretched sequentially or simultaneously at the stretching temperature, and the stretched film is heat-set. It is also possible to use a biaxially stretched film produced by the above method.
  • the surface-treated steel sheet 1 of the present invention can be formed as a can container by forming a coating layer 40 on the surface to obtain an organic material-coated steel sheet and then processing this.
  • a can container For example, the seamless can 5 (two piece can) shown to FIG. 3 (A) and the three-piece can 5a (welding can) shown to FIG. 3 (B) are mentioned.
  • the body 51 and the upper lid 52 constituting the seamless can 5 and the body 51a, the upper lid 52a and the lower lid 53 constituting the three-piece can 5a are all formed by forming the coating layer 40 on the surface-treated steel sheet 1 of the present embodiment.
  • An organic material-coated steel sheet is formed.
  • FIGS. 3 (A) and 3 (B) the cross-sectional views of the seamless can 5 and the three-piece can 5a are obtained by rotating FIG. 1 described above by 90 ° so that the coating layer 40 is on the inner surface side of the can. .
  • the cans 5 and 5a shown in FIGS. 3 (A) and 3 (B) are drawn, drawn / re-drawn, and bent and stretched by drawing / re-drawing (stretching) so that the coating layer 40 is on the inner surface side of the can. ),
  • the coating layer 40 is thermoplastic by an extrusion coating method. It is particularly preferable that it is made of a resin coating. That is, since the organic material-coated steel sheet is excellent in work adhesion, it is possible to provide a seamless can having excellent corrosion resistance and excellent corrosion resistance even when subjected to severe processing.
  • the surface-treated steel sheet 1 of the present invention can be manufactured by forming a coating layer 40 on the surface to obtain an organic material-coated steel sheet, and then processing this to produce a can lid.
  • the can lid is not particularly limited, and examples thereof include a flat lid, a stay-on-tab type easy open can lid, and a full open type easy open can lid.
  • ⁇ Appearance evaluation> The appearance of the surface-treated steel sheet 1 was visually evaluated according to the following criteria.
  • the surface-treated steel sheet 1 was heat-treated at a temperature of 205 ° C. for 30 minutes, and the amount of tin oxide film layer formed on the surface of the tin-plated steel sheet 10 before and after the heat treatment was measured.
  • the amount of the oxide film layer was evaluated by the amount of electricity required to remove the oxide film layer by electrochemical reduction.
  • a 1 / 1000N hydrogen bromide solution was used as the electrolytic solution, and electrolysis was performed under a current density of 25 ⁇ A / cm 2 .
  • Evaluation of the growth of the oxide film layer is to calculate the value obtained by dividing the amount of the oxide film layer after the heat treatment by the amount of the oxide film layer before the heat treatment (the oxide film layer after the heat treatment / the oxide film layer before the heat treatment). It was evaluated that the larger the value, the easier the oxide film layer grows by heat treatment. The evaluation of the growth of the oxide film layer was performed for all examples and comparative examples described later.
  • ⁇ The oxide film layer after heat treatment / the oxide film layer before heat treatment was 1.2 or less.
  • X The oxide film layer after the heat treatment / the oxide film layer before the heat treatment exceeded 1.4.
  • ⁇ Sulfurization blackening resistance evaluation (model solution)>
  • the organic material-coated steel sheet formed by forming the coating layer 40 on the surface-treated steel sheet 1 was cut into 40 mm square, and then the cut surface was protected with a 3 mm width tape to prepare a test piece.
  • the prepared test piece was put into an empty can (Toyo Seikan Co., Ltd., J280TULC), and the following model solution was filled in the test piece so that all the test pieces were immersed therein. A 5 hour retort treatment was performed.
  • Model solution 6 g of sodium dihydrogen phosphate (NaH 2 PO 4) 3.0g / L, 7.1g of disodium hydrogen phosphate (Na 2 HPO 4) / L , L- cysteine hydrochloride monohydrate
  • An aqueous solution of pH 7.0 containing at a concentration of / L was then opened, and the degree of blackening of the test piece was visually observed and evaluated according to the following criteria.
  • the sulfide blackening resistance evaluation (model solution) was performed for all examples and comparative examples described later. 3 points: As a result of visual determination, the degree of blackening was clearly less than that of Comparative Example 3.
  • Example 1 First, a low carbon cold-rolled steel plate (plate thickness: 0.225 mm) was prepared as the steel plate 11.
  • the prepared steel sheet was degreased by performing cathodic electrolytic treatment at 60 ° C. for 10 seconds using an aqueous solution of an alkaline degreasing agent (Nippon Quaker Chemical Co., Ltd., Formula 618-TK2).
  • an alkaline degreasing agent Naippon Quaker Chemical Co., Ltd., Formula 618-TK2
  • the degreased steel sheet was washed with tap water and then pickled by dipping it in a pickling agent (5% by volume aqueous solution of sulfuric acid) at room temperature for 5 seconds.
  • the phosphoric acid compound layer 20 was formed on the tin plating steel plate 10 by immersing the obtained tin plating steel plate 10 in the immersion treatment liquid on the following conditions.
  • Immersion treatment solution pH 1.3 aqueous solution in which phosphorous acid is dissolved at a concentration of 10 g / L (treatment solution A in Table 1)
  • the process liquid was analyzed. The results are shown in Table 1.
  • Table 1 the concentration (g / L) of phosphorus atoms calculated according to the concentration of the dissolved phosphate compound is also shown.
  • an immersion treatment liquid shown as treatment liquid A in Table 1 was used to form the phosphoric acid compound layer 20.
  • the processing liquid B was used for Examples 2 and 3 to be described later
  • the processing liquid C was used for Examples 4 and 6 to be described later
  • the processing liquid D was used for Example 5 to be described later.
  • Table 2 shows conditions of the immersion treatment liquid and the immersion time when the phosphate compound layer 20 was formed on the tin-plated steel sheet 10.
  • the tin-plated steel sheet 10 on which the phosphoric acid compound layer 20 was formed was washed with water, and then immersed in the electrolytic treatment solution under the following conditions, and the electrolytic treatment solution was stirred and disposed at a distance of 17 mm between the electrodes.
  • the aluminum oxygen compound layer 30 was formed by performing cathodic electrolysis using the iridium oxide-coated titanium plate as an anode.
  • the surface-treated steel sheet 1 in which the phosphoric acid compound layer 20 and the aluminum oxygen compound layer 30 were formed in this order on the tin-plated steel sheet 10 was obtained by washing with running water and drying.
  • the processing liquid was analyzed according to the method mentioned above.
  • Electrolytic treatment solution Aluminum nitrate is dissolved as an Al compound to have an Al ion concentration of 1500 ppm by weight, an nitrate ion concentration of 15,000 ppm by weight, and an F ion concentration of 0 ppm by weight (pH 3.0).
  • Treatment liquid F Electrolytic solution temperature: 40 ° C
  • the surface-treated steel sheet 1 was subjected to a heat treatment at a temperature of 190 ° C. for 10 minutes, and then an epoxy phenol-based paint was applied so that the coating thickness after baking and drying was 70 mg / dm 2.
  • the organic material covering steel plate which formed the coating layer 40 on the surface treatment steel plate 1 was obtained.
  • the obtained organic material-coated steel sheet was subjected to paint adhesion evaluation, anti-sulfur blackening evaluation (model solution), evaluation of oxide film layer growth, and appearance evaluation according to the above-described methods. The results are shown in Table 3.
  • Example 2 When forming the phosphoric acid compound layer 20 on the tin-plated steel sheet 10, an aqueous solution of pH 1.8 in which phosphoric acid is dissolved at a concentration of 30 g / L and sodium dihydrogen phosphate is dissolved at a concentration of 30 g / L as an immersion treatment solution.
  • a surface-treated steel sheet 1 and an organic material-coated steel sheet were produced in the same manner as in Example 1 except that (treatment liquid B in Table 1) was used, and evaluation was performed in the same manner. The results are shown in Table 3.
  • Example 3 When forming the aluminum oxygen compound layer 30 on the phosphate compound layer 20, the surface-treated steel sheet 1 and the organic material-coated steel sheet were prepared in the same manner as in Example 2 except that the total energization time was 0.5 seconds. The same evaluation was performed. The results are shown in Table 3.
  • Example 4 When forming the phosphoric acid compound layer 20 on the tin-plated steel sheet 10, an aqueous solution of pH 2.4 in which phosphoric acid is dissolved at a concentration of 10 g / L and sodium dihydrogen phosphate is dissolved at a concentration of 30 g / L as an immersion treatment solution.
  • a surface-treated steel sheet 1 and an organic material-coated steel sheet were prepared in the same manner as in Example 1 except that (Processing liquid C in Table 1) was used, and evaluated in the same manner. The results are shown in Table 3.
  • Example 5 When forming the phosphoric acid compound layer 20 on the tin-plated steel sheet 10, phosphoric acid is used as an immersion treatment solution at a concentration of 10 g / L, sodium dihydrogen phosphate at a concentration of 30 g / L, and trisodium phosphate at a concentration of 7 g / L.
  • a surface-treated steel sheet 1 and an organic material-coated steel sheet were prepared in the same manner as in Example 1 except that an aqueous solution of pH 3.7 dissolved in L (treatment liquid D in Table 1) was used and the immersion time was 4 seconds. The same evaluation was made. The results are shown in Table 3.
  • Example 6 Before forming the phosphate compound layer 20 on the tin-plated steel sheet 10, the tin-plated steel sheet 10 was immersed in an aqueous solution containing hydrochloric acid. Thereafter, the immersion time in forming the phosphoric acid compound layer 20 on the tin-plated steel sheet 10 is 2 seconds, the number of cycles in forming the aluminum oxygen compound layer 30 on the phosphoric acid compound layer 20 is 2, and the total energization time The surface-treated steel sheet 1 and the organic material-coated steel sheet were produced in the same manner as in Example 4 except that the time was set to 0.6 seconds, and evaluation was performed in the same manner. The results are shown in Table 3.
  • Comparative Example 1 When forming the phosphoric acid compound layer 20 on the tin-plated steel sheet 10, an aqueous solution having a pH of 6.4 in which phosphoric acid is dissolved at a concentration of 10 g / L and sodium dihydrogen phosphate is dissolved at a concentration of 30 g / L as an immersion treatment solution. A surface-treated steel sheet 1 and an organic material-coated steel sheet were prepared and evaluated in the same manner as in Example 1 except that (treatment liquid E in Table 1) was used and the immersion time was 5 seconds. The results are shown in Table 3.
  • Comparative Example 3 By forming the aluminum oxygen compound layer 30 and the coating layer 40 in this order directly on the tin-plated steel plate 10 in the same manner as in Example 1 without forming the phosphate compound layer 20, the surface-treated steel plate and organic A material-coated steel sheet was obtained. The obtained surface-treated steel sheet and organic material-coated steel sheet were evaluated in the same manner as in Example 1. The results are shown in Table 3.
  • a phosphoric acid compound layer 20 having a phosphorus amount of 0.4 to 10 mg / m 2 is formed by immersing the tin-plated steel sheet 10, and on the phosphoric acid compound layer 20.
  • the results of the paint adhesion evaluation, the sulfide blackening resistance evaluation (model solution), the oxide film layer growth evaluation, and the appearance evaluation were all good.
  • the coating layer 40 was excellent in adhesion, corrosion resistance and sulfur blackening resistance, and suitable for applications such as metal containers used over a long period of time.
  • Comparative Examples 1 and 2 in which the amount of phosphorus in the phosphoric acid compound layer and the aluminum oxygen compound layer is 0.2 mg / m 2 or less are used for paint adhesion evaluation and sulfur blackening resistance evaluation. It was confirmed that the results were all bad, the adhesiveness of the coating layer 40 was poor, and the suitability of the actual contents was poor. Moreover, the comparative example 3 which formed the aluminum oxygen compound layer 30 directly on the tin-plated steel plate 10 without forming the phosphoric acid compound layer 20 by immersion treatment is paint adhesion evaluation and evaluation of the growth of an oxide film layer. These results were all bad, and it was confirmed that the adhesion of the coating layer 40 was poor.

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Abstract

L'invention concerne un procédé de fabrication d'une tôle d'acier (1) traitée en surface, ledit procédé comprenant : une étape de formation de couche de composé phosphaté dans laquelle une tôle mince d'acier étamée (10), obtenue par placage d'une tôle d'acier (11) avec un revêtement d'étain (12), est immergée dans un liquide de traitement par immersion contenant des ions phosphate sans effectuer de traitement électrolytique de manière à effectuer un traitement d'immersion et former ainsi une couche (20) de composé phosphaté sur la tôle mince d'acier étamée (10) ; et une étape de formation de couche de composé d'aluminium-oxygène dans laquelle une couche (30) de composé d'aluminium-oxygène est formée sur la couche (20) de composé phosphaté par traitement électrolytique à l'aide d'un liquide de traitement électrolytique qui contient de l'aluminium.
PCT/JP2015/085948 2015-01-26 2015-12-24 Procédé de fabrication de tôle d'acier traitée en surface Ceased WO2016121277A1 (fr)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
EP3508617A4 (fr) * 2016-08-31 2020-05-06 Toyo Kohan Co., Ltd. Tôle d'acier traitée en surface, tôle d'acier revêtue de résine organique et récipient l'utilisant

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5681696A (en) * 1979-12-06 1981-07-03 Toyo Kohan Co Ltd Surface treatment of tinned steel sheet
JP2006348360A (ja) * 2005-06-17 2006-12-28 Toyo Seikan Kaisha Ltd 表面処理金属板及びその表面処理方法、並びに樹脂被覆金属板、缶及び缶蓋
JP2010018835A (ja) * 2008-07-10 2010-01-28 Jfe Steel Corp 錫めっき鋼板およびその製造方法

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
JP2010180452A (ja) * 2009-02-05 2010-08-19 Nippon Steel Corp 缶用めっき鋼板及びその製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5681696A (en) * 1979-12-06 1981-07-03 Toyo Kohan Co Ltd Surface treatment of tinned steel sheet
JP2006348360A (ja) * 2005-06-17 2006-12-28 Toyo Seikan Kaisha Ltd 表面処理金属板及びその表面処理方法、並びに樹脂被覆金属板、缶及び缶蓋
JP2010018835A (ja) * 2008-07-10 2010-01-28 Jfe Steel Corp 錫めっき鋼板およびその製造方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3508617A4 (fr) * 2016-08-31 2020-05-06 Toyo Kohan Co., Ltd. Tôle d'acier traitée en surface, tôle d'acier revêtue de résine organique et récipient l'utilisant

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