SI23452A - Process of electrolytic zincing with increased anticorrosive protection - Google Patents
Process of electrolytic zincing with increased anticorrosive protection Download PDFInfo
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- SI23452A SI23452A SI201100179A SI201100179A SI23452A SI 23452 A SI23452 A SI 23452A SI 201100179 A SI201100179 A SI 201100179A SI 201100179 A SI201100179 A SI 201100179A SI 23452 A SI23452 A SI 23452A
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- silicate
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- 238000000034 method Methods 0.000 title claims abstract description 30
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920002635 polyurethane Polymers 0.000 claims abstract description 14
- 239000004814 polyurethane Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000002161 passivation Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 239000006185 dispersion Substances 0.000 claims abstract 2
- 238000005260 corrosion Methods 0.000 claims description 16
- 239000004815 dispersion polymer Substances 0.000 claims description 15
- 230000007797 corrosion Effects 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 238000009713 electroplating Methods 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 150000001869 cobalt compounds Chemical class 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims 1
- 239000011651 chromium Substances 0.000 claims 1
- 239000003513 alkali Substances 0.000 abstract description 2
- 238000005246 galvanizing Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/51—One specific pretreatment, e.g. phosphatation, chromatation, in combination with one specific coating
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- 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
- C23C22/82—After-treatment
- C23C22/83—Chemical after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2350/00—Pretreatment of the substrate
- B05D2350/60—Adding a layer before coating
- B05D2350/65—Adding a layer before coating metal layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Electroplating And Plating Baths Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Predloženi izum se nanaša na postopek elektrolitskega cinkanja, debeloslojnega pasiviranja in naknadne obdelave za povečanje protikorozijske zaščite, pri čemer omenjeni postopek obsega predobdelavo oz. čiščenje proizvodov, ki jih je potrebno protikorozijsko zaščititi, galvaniziranje v alkalnem mediju in končno obdelavo.The present invention relates to a process for electrolytic zinc coating, thick-layer passivation and post-treatment to enhance corrosion protection, said method comprising pretreatment or treatment. cleaning of products to be protected against corrosion, electroplating in alkaline medium and finishing.
Postopek elektrolitskega cinkanja uvodoma navedene vrste je v splošnem znan. Kljub temu, da znani postopek sicer izpolnjuje zahteve, ima tudi določene pomanjkljivosti, ki se kažejo zlasti v sorazmerno visoki porabi energije in posledično uporabi dokaj agresivnih medijev. Poleg tega dosegajo nanosi protikorozijske zaščite na izdelkih, ki se jih uporablja v okolju z zelo visokimi do izjemno visokimi klimatskimi obremenitvami, debelino, ki presega 20 p m.The electrolytic galvanizing process of the species mentioned above is generally known. Although the known process meets the requirements, it also has certain disadvantages, which are manifested in particular by the relatively high energy consumption and consequently the use of fairly aggressive media. In addition, anti-corrosion coatings on products used in environments with very high to extremely high climatic loads have a thickness in excess of 20 p m.
Naloga predloženega izuma je ustvariti postopek elektrolitskega cinkanja s povečano protikorozijsko zaščito, pri katerem so odpravljene pomanjkljivosti znanih rešitev.It is an object of the present invention to provide an electrolytic galvanizing process with enhanced corrosion protection, which eliminates the disadvantages of known solutions.
Postopek elektrolitskega cinkanja s povečano protikorozijsko zaščito po izumu obsega predobdelavo, kjer se površino izdelka, ki ga je potrebo zaščititi, očisti organskih nečistoč, rje, škaje in podobnega. Omenjena predobdelava se izvaja alkalnih raztopinah, ki vsebujejo natrijev metasilikat, natrijev hidroksid, natrijev karbonat in kislih vodnih raztopinah, ki vsebujejo natrijev hidroksid in natrijev karbonat. Z omenjeno predobdelavo se pripravi površino izdelka, ki ga je potrebo zaščititi, za naslednji postopkovni korak.The electrolytic galvanizing process with enhanced corrosion protection according to the invention comprises pre-treatment where the surface of the product to be protected is cleaned of organic impurities, rust, scissors and the like. Said pretreatment is carried out with alkaline solutions containing sodium metasilicate, sodium hydroxide, sodium carbonate and acidic aqueous solutions containing sodium hydroxide and sodium carbonate. With the said pre-treatment, the surface of the product to be protected is prepared for the next process step.
Nadaljnji korak postopka elektrolitskega cinkanja s povečano protikorozijsko zaščito po izumu obsega galvaniziranje, ki poteka v alkalnem brezcianidnem mediju. Pri tem je po izumu predvideno, da je alkalnost omenjenega brezcianidnega medija kar se da velika. Omenjeni alkalni brezcianidni medij sestoji iz silicijeve kisline, natrijeve soli, ki vsebuje natrijev silikat, vodno raztopino polimerov, ki vsebujejo dušik, raztopino trition trinatrijeve soli in triazina ter raztopino polimerov, ki vsebujejo metanol in formaldehid.A further step of the electrolytic galvanizing process with enhanced corrosion protection according to the invention comprises galvanizing that takes place in an alkaline free cyanide medium. According to the invention, it is envisaged that the alkalinity of said cyanide medium is as high as possible. Said alkali free cyanide medium consists of silicic acid, sodium salt containing sodium silicate, an aqueous solution of polymers containing nitrogen, a solution of tritium trisodium salt and triazine, and a solution of polymers containing methanol and formaldehyde.
Med korakoma predobdelave in galvaniziranja se izmenično po vsaki operaciji vrstijo postopki izpiranj s pomočjo pretočnega ali kaskadnega sistema oz. sistema tuširanja.During the pre-treatment and electroplating steps, rinsing operations are carried out alternately after each operation using a flow or cascade system, or. shower system.
Še nadaljnji korak postopka elektrolitskega cinkanja s povečano protikorozijsko zaščito po izumu obsega korak končne obdelave, pri kateri je primarni nanos na galvansko naneseno cinkovo prevleko na izdelku, ki ga je potrebo zaščititi, debeloslojni pasi vat na osnovi kromovih III in kobaltovih spojin. Omenjeni izdelek, ki ga je potrebo zaščititi, se tretira v delovni kopeli s temperaturo, ki leži v območju med okoli 19 °C in okoli 30 °C, prednostno v območju med okoli 21 °C in okoli 28 °C . Pri tem ima omenjena delovna kopel pH vrednost, ki leži v območju med okoli 2,0 in okoli 3,0, prednostno v območju med okoli 2,3 in okoli 2,7. Zatem se omenjeni izdelek spere s čisto vodo, prednostno z demineralizirano in deionizirano vodo. Temu sledi potopitev omenjenega izdelka za prvo časovno obdobje v vodno polimerno disperzijo silikata in poliuretana. Po izumu je predvideno, da znaša razmerje med silikatom in poliuretanom v omenjeni vodni polimerni disperziji približno 10 : 1. Pri tem leži omenjeno prvo časovno obdobje v območju med 40 sek. in 80 sek., prednostno med 50 sek. in 70 sek. Po izumu je nadalje predvideno, da omenjena vodna polimerna disperzija obsega pH vrednost, ki leži v območju med okoli 8,0 in okoli 11,0, prednostno v območju med okoli 8,5 in okoli 10,5.A further step of the electrolytic galvanizing process with enhanced anti-corrosion protection according to the invention comprises a finishing step in which the primary coating on the galvanically applied zinc coating on the product to be protected is a thick layer of chrome III and cobalt compounds. Said article to be protected is treated in a working bath with a temperature between about 19 ° C and about 30 ° C, preferably in the range between about 21 ° C and about 28 ° C. Said working bath has a pH value lying in the range of about 2.0 to about 3.0, preferably in the range of about 2.3 to about 2.7. Thereafter, said product is washed with pure water, preferably with demineralized and deionized water. This is followed by immersion of said product for the first time in aqueous polymer dispersion of silicate and polyurethane. According to the invention, the ratio of silicate to polyurethane in said aqueous polymer dispersion is contemplated to be about 10: 1. In this case, said first time period is in the range of 40 sec. and 80 sec., preferably between 50 sec. and 70 sec. According to the invention, it is further contemplated that said aqueous polymer dispersion comprises a pH value ranging between about 8.0 and about 11.0, preferably in the range of about 8.5 and about 10.5.
V nadaljevanju postopka se omenjeni izdelek, ki ga je potrebo zaščititi, za drugo časovno obdobje potegne iz omenjene vodne polimerne disperzije silikata in poliuretana. Pri tem je po izumu predvideno, da leži omenjeno drugo časovno obdobje v območju okoli 10 sek.In the following, the said product to be protected is withdrawn from said aqueous polymer dispersion of silicate and polyurethane for a second period of time. According to the invention, it is contemplated that said second time period lies in the range of about 10 sec.
Izvlečenju omenjenega izdelka iz omenjene vodne polimerne disperzije silikata in poliuretana sledi ponovna potopitev izdelka, ki ga je potrebo zaščititi, za tretje časovno obdobje v omenjeno vodno polimerno disperzijo silikata in poliuretana. Trajanje omenjenega tretjega časovnega obdobja leži v območju med 15 sek. in 50 sek., prednostno med 20 sek. in 40 sek.The extraction of said product from said aqueous polymer dispersion of silicate and polyurethane is followed by the re-immersion of the product to be protected for a third period into said aqueous polymer dispersion of silicate and polyurethane. The duration of said third time period is in the range of 15 sec. and 50 sec., preferably between 20 sec. and 40 sec.
Po predloženem izumu se je kot prednostno pokazalo, da je potrebo omenjeno vodno polimerno disperzijo silikata in poliuretana tekom postopka nepretrgano mešati.According to the present invention, it has been shown advantageously that the aforementioned aqueous polymer dispersion of silicate and polyurethane is continuously stirred throughout the process.
Zgoraj opisanemu postopkovnemu koraku sledi odkapljevanje in/ali odstranjevanje presežka omenjene vodne polimerne disperzije, ki mu sledi sušenje. Sušenje se tekom četrtega časovnega obdobja izvaja z vročim zrakom v zaprtih ali delno zaprtih sušilnikih v temperaturnem območju med okoli 50 °C in okoli 90 °C, prednostno pa v temperaturnem območju med okoli 60 °C in okoli 80 °C . Pri tem je po izumu predvideno, da omenjeno četrto časovno obdobje leži v območju med 6 min. in 15 min., prednostno med 8 min. in 12 min.The process step described above is followed by the removal and / or removal of excess of said aqueous polymer dispersion followed by drying. Drying is carried out during the fourth period of time with hot air in closed or partially closed dryers in the temperature range between about 50 ° C and about 90 ° C, and preferably in the temperature range between about 60 ° C and about 80 ° C. According to the invention, it is contemplated that said fourth time period lies within the range of 6 min. and 15 min., preferably between 8 min. and 12 min.
Zgoraj opisani postopek elektrolitskega cinkanja s povečano protikorozijsko zaščito po izumu poteka v celoti pri sorazmerno nizkih temperaturah, kar ima znatne prednosti pred dosedanjimi rešitvami. Tako se postopek nizkotemperatume debeloslojne pasivacije odlikuje z dokajšnjim prihrankom energije, saj poteka pri sobni temperaturi. Poleg tega se tekom postopka uporablja manj agresiven medij, ki ima manjšo vsebnost Zn2+ in Fe2+ ionov, posledično tudi v odpadnih vodah, in ne vsebuje nano delcev.The electrolytic galvanizing process described above, with the enhanced corrosion protection of the invention, is carried out entirely at relatively low temperatures, which has considerable advantages over the solutions to date. Thus, the low-temperature thick-layer passivation process is characterized by considerable energy savings as it takes place at room temperature. In addition, a less aggressive medium is used during the process, which has a lower content of Zn 2+ and Fe 2+ ions, consequently also in wastewater, and does not contain nano particles.
Z opisanim postopkom po izumu se poveča protikorozijsko zaščito na izdelkih, namenjenih stavbnemu okovju in ostalim panogam, kjer se zahteva visoko protikorozijsko zaščito na cinkovih prevlekah. Nanos protikorozijske zaščite je enakomerno porazdeljen po vsej površini izdelka, ki ga je potrebno zaščititi. S postopkom po izumu se doseže izvrstno protikorozijsko zaščito, pri kateri debelina povprečnega nanosa protikorozijske zaščite leži v območju debeline 10 pm, ne da bi se s tem zmanjšala protikorozijska zaščita izdelkov, ki se jih uporablja v izjemnih klimatskih razmerah.The described method of the invention increases the corrosion protection of products intended for building hardware and other industries, where high corrosion protection is required on zinc coatings. Corrosion protection is evenly distributed over the entire surface of the product to be protected. The process according to the invention achieves excellent corrosion protection in which the thickness of the average corrosion protection coating lies within a thickness of 10 pm without reducing the corrosion protection of the products used in extreme climatic conditions.
Claims (10)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201100179A SI23452A (en) | 2011-05-19 | 2011-05-19 | Process of electrolytic zincing with increased anticorrosive protection |
| EA201370240A EA024221B1 (en) | 2011-05-19 | 2012-04-23 | Process of electrolytic galvanizing with an enhanced anti-corrosive protection |
| EP12716407.7A EP2712331B1 (en) | 2011-05-19 | 2012-04-23 | A process of electrolytic galvanizing with an enhanced anti-corrosive protection |
| PCT/EP2012/057334 WO2012156176A1 (en) | 2011-05-19 | 2012-04-23 | A process of electrolytic galvanizing with an enhanced anti-corrosive protection |
| CN201280022064.0A CN103608125A (en) | 2011-05-19 | 2012-04-23 | A process of electrolytic galvanizing with an enhanced anti-corrosive protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201100179A SI23452A (en) | 2011-05-19 | 2011-05-19 | Process of electrolytic zincing with increased anticorrosive protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SI23452A true SI23452A (en) | 2012-02-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SI201100179A SI23452A (en) | 2011-05-19 | 2011-05-19 | Process of electrolytic zincing with increased anticorrosive protection |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2712331B1 (en) |
| CN (1) | CN103608125A (en) |
| EA (1) | EA024221B1 (en) |
| SI (1) | SI23452A (en) |
| WO (1) | WO2012156176A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019077446A1 (en) | 2017-10-18 | 2019-04-25 | Me.Ga. - S.R.L. | Frame with rotating baskets for galvanization |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220119650A9 (en) * | 2016-04-29 | 2022-04-21 | Chemetall Gmbh | Method for anti-corrosion treatment of a metal surface with reduced pickling material |
| CN112410710A (en) * | 2020-11-11 | 2021-02-26 | 合肥亿昌兴精密机械有限公司 | Corrosion-resistant high-strength galvanized sheet and galvanized sheet preparation process |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2211762B (en) * | 1987-11-13 | 1991-11-13 | Kobe Steel Ltd | Zinc alloy-plated corrosion preventive steel sheet having an organic coating layer thereon and a method for making the same |
| US5108554A (en) * | 1990-09-07 | 1992-04-28 | Collis, Inc. | Continuous method for preparing steel parts for resin coating |
| US6465114B1 (en) * | 1999-05-24 | 2002-10-15 | Nippon Steel Corporation | -Zn coated steel material, ZN coated steel sheet and painted steel sheet excellent in corrosion resistance, and method of producing the same |
| CN1740401B (en) * | 2000-03-22 | 2011-12-21 | 以利沙控股有限公司 | An energy enhanced process for treating a conductive surface and products formed thereby |
| EP1524332B1 (en) * | 2002-07-23 | 2011-09-14 | JFE Steel Corporation | Surface-treated steel sheet excellent in resistance to white rust and method for production thereof |
| DE10309908B4 (en) * | 2003-03-07 | 2006-12-14 | Benteler Stahl/Rohr Gmbh | Process for producing a galvanized and polymer coated steel pipe |
-
2011
- 2011-05-19 SI SI201100179A patent/SI23452A/en not_active IP Right Cessation
-
2012
- 2012-04-23 WO PCT/EP2012/057334 patent/WO2012156176A1/en not_active Ceased
- 2012-04-23 EA EA201370240A patent/EA024221B1/en not_active IP Right Cessation
- 2012-04-23 EP EP12716407.7A patent/EP2712331B1/en not_active Not-in-force
- 2012-04-23 CN CN201280022064.0A patent/CN103608125A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019077446A1 (en) | 2017-10-18 | 2019-04-25 | Me.Ga. - S.R.L. | Frame with rotating baskets for galvanization |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103608125A (en) | 2014-02-26 |
| EA024221B1 (en) | 2016-08-31 |
| EP2712331B1 (en) | 2016-11-16 |
| WO2012156176A1 (en) | 2012-11-22 |
| EA201370240A1 (en) | 2014-02-28 |
| EP2712331A1 (en) | 2014-04-02 |
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| OO00 | Grant of patent |
Effective date: 20120306 |
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| OU01 | Decison according to article 73(1) ipa 1992, publication of decision on fulfilment of conditions on patentability |
Effective date: 20161214 |
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| KO00 | Lapse of patent |
Effective date: 20190109 |