CN104342650A - Zinc-coated material surface wear-resistant passive film preparation technology - Google Patents
Zinc-coated material surface wear-resistant passive film preparation technology Download PDFInfo
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- CN104342650A CN104342650A CN201310310934.0A CN201310310934A CN104342650A CN 104342650 A CN104342650 A CN 104342650A CN 201310310934 A CN201310310934 A CN 201310310934A CN 104342650 A CN104342650 A CN 104342650A
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- zinc
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- passive film
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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
- C23C22/05—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
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a zinc-coated material surface wear-resistant passive film preparation technology. The conditioning liquid adopted by the technology is composed of the following components: sodium silicate with a concentration of 54 to 58 g/L, nickel nitrate with a concentration of 9 to 11 g/L, boric acid with a concentration of 7 to 9 g/L, magnesium sulfate with a concentration of 6 to 8 g/L, ferrous chloride with a concentration of 12 to 14 g/L, trisodium phosphate with a concentration of 3 to 5 g/L, nano silicon carbide with a concentration of 4 to 6 g/L, sulfuric acid (70%) with a concentration of 16 to 18 g/L, sodium dodecyl sulfonate with a concentration of 0.5 to 1.5 g/L, and the balance being water. The technology comprises the following steps: preparing the conditioning liquid according to the concentrations mentioned above, pouring the conditioning liquid in a passivation tank, adding water to dilute the conditioning liquid, wherein the ratio of the water to the conditioning liquid is 1:2-4; washing the zinc-coated material after galvanization by acid, carrying out a bright dipping treatment, then placing the zinc-coated material into the passivation tank, carrying out passivation for 60 to 90 seconds, taking out the zinc-coated material from the passivation tank, washing, and drying by hot wind.
Description
Technical field
The present invention relates to technical field of surface, particularly relate to a kind of zinc-plating material surface abrasion resistance passive film preparation technology.
Background technology
Zinc-plating material, such as zinc-based metal plated steel sheet or coil of strip, in production, storage, transport and use procedure, be easy to the corrosion being subject to corrosive medium in environment.In order to prevent the corrosion of zinc-plating material, chromic salt etc. is generally adopted to contain Cr at present
6+treatment agent on zinc-based metal plated steel sheet, form one deck chromate passivation film, then form rot-resistant seal coat through being heating and curing.
But on July 1st, 2006, formally effective RoHS Directive required to forbid to sell the product that six kinds of harmful substance contents such as lead, sexavalent chrome, mercury, cadmium, Polybrominated biphenyl (PBB) and polybromodiphenyl ether (PBDE) exceed standard.For meeting this requirement, many iron and steel enterprises of the world adopt the zinc-based metal plated steel sheet surface shallow layer treatment technologies such as nuisanceless Passivation Treatment one after another.Existing nuisanceless inactivating treatment liquid has Japanese handkerchief card LSI-C-2011 type, Henkel 6000 type etc.
CN1268583A discloses a kind of chromium-free passivation liquid for the protection of zinc coating and coating method thereof, and the compound method of this passivating solution is as follows: (1) is by water soluble acrylate resin: water=1: the volume ratio dilution of 1-4; (2) the water soluble acrylate resin's solution after often liter of dilution adds 1-5 gram of molybdate, obtains passivating solution that is colourless, transparent, pH=6-9.This passivating solution is coated in galvanized workpiece surface equably.
Aforesaid method can improve the erosion resistance of galvanized workpiece to a certain extent, but the passive film that above-mentioned surface-treated galvanized sheet is prepared not as employing chromic salts is wear-resisting, because the hardness of chromium is very high, there is the defect worn no resistance in the usual liquid of the passive film adopting other chromium-free passivation liquids to prepare.
Summary of the invention
The object of the invention is to propose a kind of zinc-plating material surface abrasion resistance passive film preparation technology, the passive film treatment solution that this technique adopts, by the adjustment to component, makes the passive film wear resisting property excellence prepared, and good corrosion resistance.
For reaching this object, the present invention by the following technical solutions:
A kind of zinc-plating material surface abrasion resistance passive film preparation technology, consisting of of the treatment solution that this technique adopts: water glass 54-58g/L, nickelous nitrate 9-11g/L, boric acid 7-9g/L, magnesium sulfate 6-8g/L, iron protochloride 12-14g/L, tertiary sodium phosphate 3-5g/L, nanometer silicon carbide 4-6g/L, 70% sulfuric acid 16-18g/L, sodium laurylsulfonate 0.5-1.5g/L, surplus is water; Described technique is: preparation has the treatment solution of above-mentioned composition, is placed in deactivation slot, with the dilution proportion of water according to 1:2-4, go out optical processing through overpickling after zinc-plating material is zinc-plated, then impregnated in deactivation slot, passivation time is 60-90 second, go out deactivation slot clear water to rinse, and use hot blast drying.
Beneficial effect of the present invention is:
Treatment solution of the present invention is using water glass as filmogen, and add the performance that the cooperations such as appropriate nickel, magnesium, ferrous ion and phosphate radical improve passive film, particularly add wear resistance high nanometer silicon carbide, it is dispersed in passive film, significantly can improve the wear resisting property of passive film, and by the above-mentioned adjustment to treatment solution component, make the passive film good corrosion resistance prepared.
Embodiment
Embodiment one
A kind of zinc-plating material surface abrasion resistance passive film preparation technology, consisting of of the treatment solution that this technique adopts: water glass 54g/L, nickelous nitrate 11g/L, boric acid 7g/L, magnesium sulfate 8g/L, iron protochloride 12g/L, tertiary sodium phosphate 5g/L, nanometer silicon carbide 4g/L, 70% sulfuric acid 18g/L, sodium laurylsulfonate 0.5g/L, surplus is water; Described technique is: preparation has the treatment solution of above-mentioned composition, is placed in deactivation slot, with the dilution proportion of water according to 1:4, go out optical processing through overpickling after zinc-plating material is zinc-plated, then impregnated in deactivation slot, passivation time is 60 seconds, go out deactivation slot clear water to rinse, and use hot blast drying.
Embodiment two
A kind of zinc-plating material surface abrasion resistance passive film preparation technology, consisting of of the treatment solution that this technique adopts: water glass 58g/L, nickelous nitrate 9g/L, boric acid 9g/L, magnesium sulfate 6g/L, iron protochloride 14/L, tertiary sodium phosphate 3g/L, nanometer silicon carbide 6g/L, 70% sulfuric acid 16g/L, sodium laurylsulfonate 1.5g/L, surplus is water; Described technique is: preparation has the treatment solution of above-mentioned composition, is placed in deactivation slot, with the dilution proportion of water according to 1:2, go out optical processing through overpickling after zinc-plating material is zinc-plated, then impregnated in deactivation slot, passivation time is 90 seconds, go out deactivation slot clear water to rinse, and use hot blast drying.
Embodiment three
A kind of zinc-plating material surface abrasion resistance passive film preparation technology, consisting of of the treatment solution that this technique adopts: water glass 56g/L, nickelous nitrate 10g/L, boric acid 8g/L, magnesium sulfate 7g/L, iron protochloride 13/L, tertiary sodium phosphate 4g/L, nanometer silicon carbide 5g/L, 70% sulfuric acid 17g/L, sodium laurylsulfonate 1.0g/L, surplus is water; Described technique is: preparation has the treatment solution of above-mentioned composition, is placed in deactivation slot, with the dilution proportion of water according to 1:3, go out optical processing through overpickling after zinc-plating material is zinc-plated, then impregnated in deactivation slot, passivation time is 75 seconds, go out deactivation slot clear water to rinse, and use hot blast drying.
Claims (1)
1. a zinc-plating material surface abrasion resistance passive film preparation technology, it is characterized in that, consisting of of the treatment solution that this technique adopts: water glass 54-58g/L, nickelous nitrate 9-11g/L, boric acid 7-9g/L, magnesium sulfate 6-8g/L, iron protochloride 12-14g/L, tertiary sodium phosphate 3-5g/L, nanometer silicon carbide 4-6g/L, 70% sulfuric acid 16-18g/L, sodium laurylsulfonate 0.5-1.5g/L, surplus is water; Described technique is: preparation has the treatment solution of above-mentioned composition, is placed in deactivation slot, with the dilution proportion of water according to 1:2-4, go out optical processing through overpickling after zinc-plating material is zinc-plated, then impregnated in deactivation slot, passivation time is 60-90 second, go out deactivation slot clear water to rinse, and use hot blast drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310310934.0A CN104342650A (en) | 2013-07-23 | 2013-07-23 | Zinc-coated material surface wear-resistant passive film preparation technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310310934.0A CN104342650A (en) | 2013-07-23 | 2013-07-23 | Zinc-coated material surface wear-resistant passive film preparation technology |
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| CN104342650A true CN104342650A (en) | 2015-02-11 |
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| CN201310310934.0A Pending CN104342650A (en) | 2013-07-23 | 2013-07-23 | Zinc-coated material surface wear-resistant passive film preparation technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823583A (en) * | 2018-09-17 | 2018-11-16 | 安徽新合富力科技有限公司 | A kind of pickling of metal passivating device and its technique |
-
2013
- 2013-07-23 CN CN201310310934.0A patent/CN104342650A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108823583A (en) * | 2018-09-17 | 2018-11-16 | 安徽新合富力科技有限公司 | A kind of pickling of metal passivating device and its technique |
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Application publication date: 20150211 |