CN1536060A - Multifunctonal degreasing rust-removing cleaning agent and its preparaton method - Google Patents
Multifunctonal degreasing rust-removing cleaning agent and its preparaton method Download PDFInfo
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- CN1536060A CN1536060A CNA031141250A CN03114125A CN1536060A CN 1536060 A CN1536060 A CN 1536060A CN A031141250 A CNA031141250 A CN A031141250A CN 03114125 A CN03114125 A CN 03114125A CN 1536060 A CN1536060 A CN 1536060A
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- 239000012459 cleaning agent Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title abstract description 27
- 238000005238 degreasing Methods 0.000 title abstract description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 36
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims abstract description 8
- 239000004312 hexamethylene tetramine Substances 0.000 claims abstract description 8
- 229960004011 methenamine Drugs 0.000 claims abstract description 8
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 108010010803 Gelatin Proteins 0.000 claims abstract description 7
- 229920000159 gelatin Polymers 0.000 claims abstract description 7
- 239000008273 gelatin Substances 0.000 claims abstract description 7
- 235000019322 gelatine Nutrition 0.000 claims abstract description 7
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 9
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 4
- 238000010790 dilution Methods 0.000 claims description 2
- 239000012895 dilution Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 27
- 239000002184 metal Substances 0.000 abstract description 27
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000003995 emulsifying agent Substances 0.000 abstract description 3
- 238000002791 soaking Methods 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 30
- 238000005260 corrosion Methods 0.000 description 15
- 230000007797 corrosion Effects 0.000 description 13
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- 239000001257 hydrogen Substances 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000005406 washing Methods 0.000 description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 10
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- 239000003513 alkali Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000003595 mist Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000005764 inhibitory process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005554 pickling Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006388 chemical passivation reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 241000779819 Syncarpia glomulifera Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001371 alpha-amino acids Chemical class 0.000 description 1
- 235000008206 alpha-amino acids Nutrition 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004299 exfoliation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910001447 ferric ion Inorganic materials 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000001739 pinus spp. Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
- 229910006297 γ-Fe2O3 Inorganic materials 0.000 description 1
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present invention relates to a degreasing rust-removing cleaning agent for surface of metal and its preparation method. Its composition is in 1000 portions of water the components of (industrial) HCl 200-300 ml/L, (industrial) H2SO4 100-150 ml/L, sodium dodecanesulphonate 8-10 g/L, hexamethylene tetramine 2.5-4 g/L, trihydroxy ethylamine 1.5-3 g/L, edible salt 200-300 g/L, gelatin 0.2-0.4 g/L and OP-10 emulsifier 12-20 mol/L are contained. The equipment required when said cleaning agent is used is simple, and the soaking method or spraying method can be used at normal temperature, and can be used for degreasing and removing rust within 3-15 min by means of one-step operation.
Description
The invention belongs to the technical field of metal material cleaning by a chemical method, and particularly relates to a chemical oil and rust removing cleaning agent for a metal material.
The metal surface is a complex system, and the composition of the metal surface is very different under different oxidation conditions. Before plating, immersion plating, etc., various metal materials are subjected to surface treatment, i.e., to remove impurities such as oil, rust, etc., from the surfaces. The existing commonly used rust removal method mainly adopts chemical rust removal as a main method, and adopts various acid solutions, hydrochloric acid and sulfuric acid forthe most application. The metal surface is usually cleaned by alkali liquor or solvent. The method has the defects of over corrosion of metal, formation of acid mist or heating, high cost, harm of toxic polluted air to human health, complex operation and the like in practical use.
Aiming at the problems, the invention is as follows: the metal surface and a medium substance for forming rust stains are subjected to chemical reaction through a permeable layer, the rust stains are peeled off after being destroyed and decomposed, and the oil stains are emulsified and decomposed through a special surfactant, so that the adhesive force of the oil stains is cracked, the dirt such as oil and rust removal and the like can be quickly removed at one time at normal temperature, and the effects of safety, no toxicity and no pollution are achieved.
The purpose of the invention can be realized by the following components and preparation method: 1000 parts of water is prepared from the following raw materials, namely HCI200-300ml/L, H2SO4100-150ml/L, 8-10g/L sodium dodecyl sulfate, 2.5-4g/L hexamethylenetetramine, 1.5-3g/L triethanolamine, 0.2-0.4g/LOP-10 gelatin, and 200-300g/L, OP-1012-20mol/L salt.
The preparation method comprises the following steps:
(1) and in a cleaning tank, 1/3 room temperature water is added with quantitative sodium dodecyl sulfate, hexamethylene tetramine, triethanolamine, salt, gelatin and OP-10 in turn, and stirred and dissolved uniformly for later use.
(2) Quantitative H with room temperature water of 1/32SO4Slowly adding into water, stirring while radiating heat, adding into HCI with certain amount, and keeping the injection speed and safety.
(3) Adding the (1) into the (2), stirring uniformly, and adding the rest 1/3 water into the cleaning agent of the (1) and the (2) for dilution.
(4) Temperature: room temperature to 35 ℃.
The function of various raw materials and the key problem to be solved in the invention.
1. Hydrochloric acid pickling rust removal mechanism
Hydrochloric acid is added with a corrosion inhibitor and hexamethylenetetramine for rust removal, and the reaction mechanism has three aspects.
(1) Chemical dissolution
The reaction formula is as follows:
the generated ferrous chloride and ferric trichloride can be dissolved in acid solution. At the same time, the acidThe solution can also react with the steel matrix chemically:
generated hydrogen is insoluble to gamma-Fe2O3The metal matrix has the functions of mechanical stripping and shedding, and is favorable for rust removal, but atomic hydrogen permeates into the metal matrix to generate hydrogen embrittlement. In order to prevent the acid washing solution from corroding metal and generating hydrogen embrittlement, a corrosion inhibitor is added, and the acid solution concentration and the acid washing temperature are also controlled.
(2) Electrochemical reductive dissolution
This reaction is primarily a cathode reaction of the local cell that occurs at the rust discontinuity on the steel surface. The reaction is fast and is the main mode of acid cleaning and rust removal. The mode is as follows: ferric oxide (negative) acid solution | iron (positive). The ferric iron in the ferric oxide is reduced to ferrous iron and directly enters the solution.
Performing cathode reaction;
and (3) anode reaction:
the rust layer dissolves into the acid liquor primarily as ferrous ions rather than ferric ions. The dissolution rate of the iron oxide powder or the stripped metal rust layer in the acid is slower than that of the rust layer adhered to the base metal.
(3) Mechanical stripping
When acid solution penetrates into the innermost layer of the rust layer, the acid solution reacts with the oxide of the innermost layer or the metal sandwiched between the oxides, so that the rust layer loses attachments and falls off.
In general, the electrochemical reduction reaction also plays a major role in exfoliation. The pickling rust removal is mainly to strip the rust layer from the metal substrate through chemical reaction by acid, but not to completely dissolve the rust layer. Therefore, the cleaned equipment is required to be thoroughly cleaned after cleaning is finished, and the fallen iron is thoroughly removed.
2. Mechanism of rust removal by sulfuric acid pickling
Under the dissolving, mechanical stripping and reducing action of sulfuric acid, the iron oxide reacts as follows:
due to Fe2O3、Fe3O4Is not an oxide dissolved in acid liquor, and the reaction is slow. The hydrogen separated out during iron dissolution can not only make Fe3O4、Fe2O3Reducing to FeO (or Fe) accelerates the pickling process and also mechanically peels the loosened scale of iron oxide from the metal. Iron and its oxides are reduced in acid to readily soluble ferrous sulfate, the reaction is as follows:
3. the sodium dodecyl sulfate is used as fog inhibitor to generate foam, and the acid reacts with the steel matrix to generate hydrogen, hydrogen embrittlement and a great deal of acid mist. In order to prevent acid mist, sodium dodecyl sulfate is added during acid washing, which can prevent acid mist from generating and achieve the effect of lasting acid washing.
4. The hexamethylenetetramine has a corrosion inhibition effect on metal parts during acid cleaning, the corrosion inhibition rate is more than95 percent, and the absorption of hydrogen and Fe of steel parts during acid cleaning can be effectively inhibited3+The corrosion to metal can prevent the occurrence of pitting corrosion during the metal pickling.
5. Triethanolamine chemical passivation is used as a stabilizer, and the triethanolamine chemical passivation not only can control the decomposition of a cleaning agent, but also plays a role in permeation.
6. The salt can control H2SO4Has corrosion effect on carbon steel, chromium steel and chromium nickel steel, and can be used as an ash-proof agent.
7. The gelatin has good corrosion inhibition effect on metal in acid washing, is formed by various α -amino acids with smaller molecular weight, is a corrosion inhibitor containing amino and hydroxyl, and has the corrosion inhibition rate of 95 percent when the concentration reaches 0.3 percent, the temperature of a medium is increased, the concentration is increased, and the corrosion inhibition rate is increased to different degrees.
8. The OP-10 emulsifier is a good emulsifier, has good oil removing effect, is not easy to wash off parts, and needs to be cleaned intensively to ensure the bonding force of a plating layer and metal parts. As an oil removing component in the present invention.
Compared with the common oil and rust removing agent, the cleaning agent of the invention has the advantages of overcoming the defects
The common oil-removing and rust-removing method has the defects
The commonly used derusting method mainly comprises chemical derusting. Chemical rust removal adopts various acid solutions, and hydrochloric acid and sulfuric acid are most applied. The acid can react with rust or metal oxide to generate soluble salt to remove the rust, and the acid can react with the base metal to release hydrogen, and the hydrogen can generate processes to the rust and the insoluble oxide skin, but the side effect of the hydrogen is generated as follows:
1. hydrogen embrittlement is generated on the metal, so that the mechanical property of the metal is reduced;
2. the escape of a large amount of hydrogen can form acid mist, which affects the health of operators and corrodes surrounding equipment;
3. large amounts of acid are consumed, increasing the cost of treatment;
4. over-corrosion is easily generated.
The common degreasing method comprises two methods of alkali liquor cleaning and solvent cleaning.
The common materials for washing with alkali liquor include sodium hydroxide, sodium carbonate, trisodium phosphate, sodium silicate, etc. The alkali cleaning has the advantages of strong oil removal capability, safety, reliability and the like along with the improvement of the cleaning formula and the improvement of the operation method, but the defects of the alkali cleaning are also obvious:
1. some alkali liquor is not easy to be cleaned by water;
2. some alkali liquor needs to be heated, and energy is consumed;
3. some alkali liquor has corrosivity to nonferrous metals;
4. different materials and proportions are required to be selected for different treatment processes, and the actual application is not easy to master.
5. The cost is high.
And (II) the solvent cleaning has the advantages of good deoiling effect, capability of cleaning at normal temperature and no corrosion to ferrous metals and nonferrous metals. The selected materials include petroleum solvent, aromatic hydrocarbon solvent, halogenated hydrocarbon, turpentine and the like. As is known to all, organic solvents are flammable and explosive, have certain toxic dangerous goods, have high volatility, pollute air, harm human bodies, consume more materials and have high production cost, so the organic solvents are greatly limited in industrial application.
The multifunctional oil and rust removing cleaning agent has the advantages of
1. The effect is good. The product can effectively remove oil and rust on the metal surface and oil stain on the nonmetal surface, and provides a clean surface for the subsequent procedures. Hydrogen embrittlement and over-corrosion phenomena are avoided;
2. low cost and low dosage. The Fe content is below 150g/L, and the Fe can be effectively used;
3. the process is simple. The oil removal and rust removal are carried out synchronously. The original degreasing and derusting process needs four procedures of degreasing, washing, derusting, washing and the like to obtain a clean surface, and only needs two procedures of comprehensive treatment and washing by adopting the technology. The operation steps can be simplified, the work efficiency is improved, and the production field and production equipment are saved;
4. improves the production conditions. The product does not generate acid mist, is beneficial to environmental protection, labor protection and production equipment maintenance, and can reduce the consumption of raw materials;
5. is convenient to use. The product is prepared and used at normal temperature, is beneficial to saving energy, reducing treatment cost and can be added for recycling;
6. the use is safe. The product is non-combustible, non-explosive, non-toxic, tasteless and harmless to human body;
7. has wide application. It can be widely used for the pretreatment of metal and partial non-metal materials in the processes of coating, electroplating, chemical plating, rust-proof sealing, surface modification, surface film conversion, etc.
The process method for cleaning by using the multifunctional cleaning agent comprises the following steps:
1. soaking method. The metal workpiece to be treated is immersed in the oil-removing and rust-removing liquid for 3-15 min according to its working condition. The method is economical, and has better effect if the temperature is 30 ℃ or the stirring is vibrated. And washing with clear water after the treatment is finished.
2. Spraying method. Spraying and covering with oil and rust removing liquid from top to bottom, washing with water to remove oxides, and drying the workpiece for later use.
3. A method for preparing the brush. The oil and rust removing liquid is directly brushed on a workpiece, washed clean by clear water and dried for later use, and the effect is faster and better if the temperature is 30 ℃ or the stirring and the vibration are carried out.
The invention is further illustrated below by way of example in connection with the process flow:
example 1
One of a PP plate, a PVC plate or glass fiber reinforced plastic is used as a cleaning tank.
1. Dissolving 10g of sodium dodecyl sulfate, 3g of hexamethylenetetramine, 2g of triethanolamine, 250g of salt and 0.3g of gelatin in 300ml of tap water. OP-1015ml, and the mixture was dissolved by stirring to prepare (1).
2. Placing 400ml tap water into a container, and firstly placing H2SO4100ml of the mixture isslowly added into water, stirred and radiated. Then adding HCI200ml and stirring.
3. Pouring (1) into (2) and mixing to obtain the cleaning agent
And (3) putting the metal parts needing to be degreased and derusted into a container containing a cleaning agent for degreasing and derusting cleaning, soaking for 3-15 minutes at room temperature, and fishing out the workpieces to finish the degreasing and derusting two-in-one-step process treatment.
Claims (4)
- The multifunctional oil and rust removing cleaning agent is characterized in that: the cleaning agent is prepared from 1000 parts of water and the following raw materials: HCI (Industrial) 200-2SO4100-150ml/L (industrial), 8-10g/L sodium dodecyl sulfate, 2.5-4g/L hexamethylenetetramine, 1.5-3g/L triethanolamine, 300g/L salt 200-L, OP-10 and 12-20mol/L gelatin;the preparation method comprises the following steps:(1) sequentially adding quantitative sodium dodecyl sulfate, hexamethylene tetramine, triethanolamine, salt, gelatin and OP-10 into 1/3 room-temperature water in a cleaning tank, and stirring and dissolving uniformly for later use;
- (2) quantitative H with room temperature water of 1/32SO4Slowly adding into water, stirring while radiating, adding into HCI with certain amount, and keeping the injection speed and safety;
- (3) adding the (1) into the (2) while stirring uniformly, and then adding the rest 1/3 water into the cleaning agents of the (1) and the (2) for dilution;
- (4) temperature: room temperature to 35 ℃;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031141250A CN1536060A (en) | 2003-04-07 | 2003-04-07 | Multifunctonal degreasing rust-removing cleaning agent and its preparaton method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031141250A CN1536060A (en) | 2003-04-07 | 2003-04-07 | Multifunctonal degreasing rust-removing cleaning agent and its preparaton method |
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| Publication Number | Publication Date |
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| CN1536060A true CN1536060A (en) | 2004-10-13 |
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| CNA031141250A Pending CN1536060A (en) | 2003-04-07 | 2003-04-07 | Multifunctonal degreasing rust-removing cleaning agent and its preparaton method |
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|---|---|---|---|---|
| CN101831661A (en) * | 2010-04-01 | 2010-09-15 | 中国科学院宁波材料技术与工程研究所 | Zinc alloy acid-washing solution and zinc alloy acid-washing treating process |
| CN102121088A (en) * | 2011-02-23 | 2011-07-13 | 震雄铜业集团有限公司 | Formula of flux for hot tinning of copper wire and preparation method thereof |
| CN101423924B (en) * | 2008-05-21 | 2012-01-11 | 解奕炯 | Degreasing, oil removing and sulfuric acid refining one-step method hot-dip galvanizing pre-treatment process |
| CN106591933A (en) * | 2017-01-20 | 2017-04-26 | 王玉田 | Electrolyte capable of removing oil and rust of metal surfaces |
| CN107268002A (en) * | 2017-08-04 | 2017-10-20 | 苏州吉利不锈钢制品有限公司 | A kind of 304 passivating agent for acid-washing stainless steel and preparation method thereof |
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| CN110129808A (en) * | 2019-04-25 | 2019-08-16 | 广州市凯之达化工有限公司 | A kind of marine piping rust remover |
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2003
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| CN101831661A (en) * | 2010-04-01 | 2010-09-15 | 中国科学院宁波材料技术与工程研究所 | Zinc alloy acid-washing solution and zinc alloy acid-washing treating process |
| CN102121088A (en) * | 2011-02-23 | 2011-07-13 | 震雄铜业集团有限公司 | Formula of flux for hot tinning of copper wire and preparation method thereof |
| CN102121088B (en) * | 2011-02-23 | 2012-02-15 | 震雄铜业集团有限公司 | Formula of flux for hot tinning of copper wire and preparation method thereof |
| CN106591933A (en) * | 2017-01-20 | 2017-04-26 | 王玉田 | Electrolyte capable of removing oil and rust of metal surfaces |
| CN107268002A (en) * | 2017-08-04 | 2017-10-20 | 苏州吉利不锈钢制品有限公司 | A kind of 304 passivating agent for acid-washing stainless steel and preparation method thereof |
| CN108315101A (en) * | 2018-02-07 | 2018-07-24 | 合肥安力电力工程有限公司 | A kind of pipeline cleaning agent and preparation method thereof |
| CN110129808A (en) * | 2019-04-25 | 2019-08-16 | 广州市凯之达化工有限公司 | A kind of marine piping rust remover |
| CN112779544A (en) * | 2019-11-06 | 2021-05-11 | 晟通科技集团有限公司 | Rust removal cleaning agent and use method thereof |
| CN112391635A (en) * | 2020-09-28 | 2021-02-23 | 常熟童海金属制品有限公司 | Preparation method of detergent solution for cleaning metal plate |
| CN115386436A (en) * | 2022-06-08 | 2022-11-25 | 安徽应友光电科技有限公司 | Preparation method of cleaning agent for removing high-temperature oxide skin and a small amount of organic film of OLED evaporation plate |
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