CN104404497A - Passivant for metal coating - Google Patents
Passivant for metal coating Download PDFInfo
- Publication number
- CN104404497A CN104404497A CN201410765864.2A CN201410765864A CN104404497A CN 104404497 A CN104404497 A CN 104404497A CN 201410765864 A CN201410765864 A CN 201410765864A CN 104404497 A CN104404497 A CN 104404497A
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- passivator
- metal plating
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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
- C23C22/46—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 oxalates
- C23C22/47—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 oxalates containing also phosphates
Abstract
The invention discloses a passivant for metal coating. The passivant comprises the following raw materials in parts by weight: 50-70 parts of trisodium phosphate, 20-30 parts of sodium silicate, 10-15 parts of sodium molybdate, 2-5 parts of ammonium tetramolybdate, 5-10 parts of cobaltous sulfate, 5-10 parts of hydrogen peroxide, 15-25 parts of phytic acid, 5-10 parts of oxalic acid, 5-10 parts of boric acid, 10-20 parts of octadecylamine, 2-5 parts of octaphenyl polyoxyethyiene, 5-10 parts of triethanolamine and 2-6 parts of 2,6-butylated hydroxytoluene. The passivant is excellent in anti-corrosion performance, excellent in antioxidant performance and free of chromium, and is prevented from polluting the environment and prevented from harming the human body.
Description
Technical field
The present invention relates to metal working technical area, particularly relate to a kind of passivator for metal plating.
Background technology
Passivator can form passivation protection film in metallic surface, and protection metal is not corroded, and extends the work-ing life of metal.Passivation protection film is fine and close, good luster, and protection metal is not corroded, and can improve the use properties of metallic substance, can also give metal material surface shades of colour.
Chromating technology is owing to having excellent passive film self-repair function, and use range is extensive, and possesses cost advantage, is used within the quite a long time by the main passivating technique as iron and steel, alloy etc.But containing sexavalent chrome or trivalent chromium in chromating agent, be highly toxic substance, have carinogenicity, have a strong impact on HUMAN HEALTH, cause environmental pollution.
Chromium-free deactivation technology then has nontoxic, the advantage such as environmental friendliness, efficient low-consume, becomes main flow R&D direction instantly.Chromium-free deactivation technology is mainly divided three classes, and is respectively inorganic passivation, organic passivation and composite passivated.Be used alone inorganic passivating technique or organic passivation technology at present, its erosion resistance all cannot reach chromium passivating effect.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of passivator for metal plating, there is excellent anti-corrosion, oxidation resistent susceptibility, and not containing chromium, can not environmental pollution be produced, harm can not be produced to human body.
A kind of passivator for metal plating that the present invention proposes, its raw material comprises by weight: tertiary sodium phosphate 50-70 part, water glass 20-30 part, Sodium orthomolybdate 10-15 part, ammonium tetramolybdate 2-5 part, rose vitriol 5-10 part, hydrogen peroxide 5-10 part, phytic acid 15-25 part, oxalic acid 5-10 part, boric acid 5-10 part, stearylamine 10-20 part, polyoxyethylene octylphenol ether 2-5 part, trolamine 5-10 part, 2,6 ditertiary butyl p cresol 2-6 part.
Preferably, the weight ratio of tertiary sodium phosphate, water glass, Sodium orthomolybdate, ammonium tetramolybdate and rose vitriol is 55-65:22-28:12-14:3-4:7-9.
Preferably, the weight ratio of phytic acid, oxalic acid and boric acid is 19-21:7-9:7-9.
Preferably, its raw material comprises by weight: tertiary sodium phosphate 55-65 part, water glass 22-28 part, Sodium orthomolybdate 12-14 part, ammonium tetramolybdate 3-4 part, rose vitriol 7-9 part, hydrogen peroxide 6-8 part, phytic acid 19-21 part, oxalic acid 7-9 part, boric acid 7-9 part, stearylamine 13-17 part, polyoxyethylene octylphenol ether 3-4 part, trolamine 6-8 part, 2,6 ditertiary butyl p cresol 3-5 part.
Preferably, its raw material comprises by weight: tertiary sodium phosphate 60 parts, water glass 25 parts, Sodium orthomolybdate 13 parts, ammonium tetramolybdate 3.6 parts, rose vitriol 8 parts, hydrogen peroxide 7 parts, phytic acid 20 parts, oxalic acid 8 parts, boric acid 8 parts, stearylamine 15 parts, polyoxyethylene octylphenol ether 3.5 parts, trolamine 7 parts, 2,6 ditertiary butyl p cresol 4 parts.
The present invention is in steel plate galvanized passivating process, and using water as solvent, passivator composition total content weight percent concentration scope maintains 1.0-1.5%, and carries out passivation 50 DEG C time.Adopt the sample after passivation of the present invention and the sample after dichromate passivation to carry out salt spray corrosion resistance test and high temperature oxidation resistance test, both finding through contrast, salt spray corrosion resistance is suitable with high temperature oxidation resistance.Wherein, salt spray corrosion resistance test condition is 35 DEG C, the 1%NaCl aqueous solution; High temperature oxidation resistance test condition is 180 DEG C.
The present invention adopts stearylamine and polyoxyethylene octylphenol ether to be emulsifying agent, existing water-wet side in its molecular structure, there is again hydrophobic end, water-wet side is more easily adsorbed on metallic surface and forms unimolecular film, hydrophobic end then repels water molecules, forms layer protecting film at medium and metallic surface, and the dissolved oxygen in water can not be contacted with metallic surface with hydrogen ion, and then serve barrier buffer action, thus slow down the erosion rate of metal plating; Match with phytic acid, oxalic acid and boric acid, remove coating surface oxide compound, coordinate adjust ph with trolamine again; And phytic acid, oxalic acid also can be used as metal chelator, when itself and metal complex, easily form the fine and close unit molecule organic protective film containing multiple chelate ring, effectively stop O
2etc. entering metallic surface, thus suppress corrosion of metal, and the complex compound formed all has extremely strong stability in pH value range widely; 2,6 ditertiary butyl p cresol is as antioxidant, and the unsatisfied chemical bond in protection the present invention is not destroyed, and extends work-ing life; Adopt tertiary sodium phosphate, water glass, Sodium orthomolybdate, ammonium tetramolybdate, rose vitriol and hydrogen peroxide as major ingredient of the present invention, match with phytic acid, oxalic acid, boric acid, stearylamine, polyoxyethylene octylphenol ether, produce synergistic effect, not only significantly improve the solidity to corrosion of metal coating surface, and not containing chromium, can not environmental pollution be produced, harm can not be produced to human body.
Embodiment
Below, by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of passivator for metal plating that the present invention proposes, its raw material comprises by weight: tertiary sodium phosphate 55 parts, water glass 28 parts, Sodium orthomolybdate 12 parts, ammonium tetramolybdate 4 parts, rose vitriol 7 parts, hydrogen peroxide 8 parts, phytic acid 19 parts, oxalic acid 9 parts, boric acid 7 parts, stearylamine 17 parts, polyoxyethylene octylphenol ether 3 parts, trolamine 8 parts, 2,6 ditertiary butyl p cresol 3 parts.
Embodiment 2
A kind of passivator for metal plating that the present invention proposes, its raw material comprises by weight: tertiary sodium phosphate 50 parts, water glass 30 parts, Sodium orthomolybdate 10 parts, ammonium tetramolybdate 5 parts, rose vitriol 5 parts, hydrogen peroxide 10 parts, phytic acid 15 parts, oxalic acid 10 parts, boric acid 5 parts, stearylamine 20 parts, polyoxyethylene octylphenol ether 2 parts, trolamine 10 parts, 2,6 ditertiary butyl p cresol 2 parts.
Embodiment 3
A kind of passivator for metal plating that the present invention proposes, its raw material comprises by weight: tertiary sodium phosphate 60 parts, water glass 25 parts, Sodium orthomolybdate 13 parts, ammonium tetramolybdate 3.6 parts, rose vitriol 8 parts, hydrogen peroxide 7 parts, phytic acid 20 parts, oxalic acid 8 parts, boric acid 8 parts, stearylamine 15 parts, polyoxyethylene octylphenol ether 3.5 parts, trolamine 7 parts, 2,6 ditertiary butyl p cresol 4 parts.
Embodiment 4
A kind of passivator for metal plating that the present invention proposes, its raw material comprises by weight: tertiary sodium phosphate 70 parts, water glass 20 parts, Sodium orthomolybdate 15 parts, ammonium tetramolybdate 2 parts, rose vitriol 10 parts, hydrogen peroxide 5 parts, phytic acid 25 parts, oxalic acid 5 parts, boric acid 10 parts, stearylamine 10 parts, polyoxyethylene octylphenol ether 5 parts, trolamine 5 parts, 2,6 ditertiary butyl p cresol 6 parts.
Embodiment 5
A kind of passivator for metal plating that the present invention proposes, its raw material comprises by weight: tertiary sodium phosphate 65 parts, water glass 22 parts, Sodium orthomolybdate 14 parts, ammonium tetramolybdate 3 parts, rose vitriol 9 parts, hydrogen peroxide 6 parts, phytic acid 21 parts, oxalic acid 7 parts, boric acid 9 parts, stearylamine 13 parts, polyoxyethylene octylphenol ether 4 parts, trolamine 6 parts, 2,6 ditertiary butyl p cresol 5 parts.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (5)
1. for a passivator for metal plating, it is characterized in that, its raw material comprises by weight: tertiary sodium phosphate 50-70 part, water glass 20-30 part, Sodium orthomolybdate 10-15 part, ammonium tetramolybdate 2-5 part, rose vitriol 5-10 part, hydrogen peroxide 5-10 part, phytic acid 15-25 part, oxalic acid 5-10 part, boric acid 5-10 part, stearylamine 10-20 part, polyoxyethylene octylphenol ether 2-5 part, trolamine 5-10 part, 2,6 ditertiary butyl p cresol 2-6 part.
2. according to claim 1 for the passivator of metal plating, it is characterized in that, the weight ratio of tertiary sodium phosphate, water glass, Sodium orthomolybdate, ammonium tetramolybdate and rose vitriol is 55-65:22-28:12-14:3-4:7-9.
3. according to claim 1 or 2 for the passivator of metal plating, it is characterized in that, the weight ratio of phytic acid, oxalic acid and boric acid is 19-21:7-9:7-9.
4. according to any one of claim 1-3 for the passivator of metal plating, it is characterized in that, its raw material comprises by weight: tertiary sodium phosphate 55-65 part, water glass 22-28 part, Sodium orthomolybdate 12-14 part, ammonium tetramolybdate 3-4 part, rose vitriol 7-9 part, hydrogen peroxide 6-8 part, phytic acid 19-21 part, oxalic acid 7-9 part, boric acid 7-9 part, stearylamine 13-17 part, polyoxyethylene octylphenol ether 3-4 part, trolamine 6-8 part, 2,6 ditertiary butyl p cresol 3-5 part.
5. according to any one of claim 1-4 for the passivator of metal plating, it is characterized in that, its raw material comprises by weight: tertiary sodium phosphate 60 parts, water glass 25 parts, Sodium orthomolybdate 13 parts, ammonium tetramolybdate 3.6 parts, rose vitriol 8 parts, hydrogen peroxide 7 parts, phytic acid 20 parts, oxalic acid 8 parts, boric acid 8 parts, stearylamine 15 parts, polyoxyethylene octylphenol ether 3.5 parts, trolamine 7 parts, 2,6 ditertiary butyl p cresol 4 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410765864.2A CN104404497A (en) | 2014-12-11 | 2014-12-11 | Passivant for metal coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410765864.2A CN104404497A (en) | 2014-12-11 | 2014-12-11 | Passivant for metal coating |
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| Publication Number | Publication Date |
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| CN104404497A true CN104404497A (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410765864.2A Pending CN104404497A (en) | 2014-12-11 | 2014-12-11 | Passivant for metal coating |
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| CN (1) | CN104404497A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839098A (en) * | 2016-05-31 | 2016-08-10 | 无锡伊佩克科技有限公司 | Chromium-free passivating agent for hot-dip galvanized steel sheet and preparation method for chromium-free passivating agent |
| CN106011824A (en) * | 2016-08-11 | 2016-10-12 | 太仓市凯福士机械有限公司 | Environment-friendly passivating solution used for mechanical plating |
| CN106048581A (en) * | 2016-08-11 | 2016-10-26 | 太仓市凯福士机械有限公司 | High-efficiency passivating solution used for electroplating |
| CN106065470A (en) * | 2016-08-11 | 2016-11-02 | 太仓市凯福士机械有限公司 | A kind of plating Surface treatment passivation solution |
| CN106521469A (en) * | 2016-11-28 | 2017-03-22 | 常熟风范电力设备股份有限公司 | Hot galvanizing steel member surface non-chrome passivation solution and preparation method thereof |
| CN110331393A (en) * | 2019-07-01 | 2019-10-15 | 昆明理工大学 | A kind of steel corrosion inhibiter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011112A (en) * | 2010-12-15 | 2011-04-13 | 济南德锡科技有限公司 | Zinc and zinc alloy plating black passivation solution and preparation method thereof |
| CN103114281A (en) * | 2012-11-22 | 2013-05-22 | 天长市飞龙金属制品有限公司 | Chromium-free passivation solution |
| CN103243320A (en) * | 2013-05-16 | 2013-08-14 | 山东建筑大学 | Zinc plating chrome-free blue-white passivator |
| CN103276386A (en) * | 2013-05-06 | 2013-09-04 | 大庆宝丰科技有限公司 | Chromium-free environment-friendly passivator for brass cartridge case of cartridge and preparation method |
| CN104099649A (en) * | 2014-06-25 | 2014-10-15 | 武汉钢铁(集团)公司 | Passivating agent for electrolytic tinplate |
-
2014
- 2014-12-11 CN CN201410765864.2A patent/CN104404497A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011112A (en) * | 2010-12-15 | 2011-04-13 | 济南德锡科技有限公司 | Zinc and zinc alloy plating black passivation solution and preparation method thereof |
| CN103114281A (en) * | 2012-11-22 | 2013-05-22 | 天长市飞龙金属制品有限公司 | Chromium-free passivation solution |
| CN103276386A (en) * | 2013-05-06 | 2013-09-04 | 大庆宝丰科技有限公司 | Chromium-free environment-friendly passivator for brass cartridge case of cartridge and preparation method |
| CN103243320A (en) * | 2013-05-16 | 2013-08-14 | 山东建筑大学 | Zinc plating chrome-free blue-white passivator |
| CN104099649A (en) * | 2014-06-25 | 2014-10-15 | 武汉钢铁(集团)公司 | Passivating agent for electrolytic tinplate |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839098A (en) * | 2016-05-31 | 2016-08-10 | 无锡伊佩克科技有限公司 | Chromium-free passivating agent for hot-dip galvanized steel sheet and preparation method for chromium-free passivating agent |
| CN105839098B (en) * | 2016-05-31 | 2018-09-07 | 湖南省鎏源新能源有限责任公司 | Hot-dip galvanizing sheet steel chrome-free tanning agent and preparation method thereof |
| CN106011824A (en) * | 2016-08-11 | 2016-10-12 | 太仓市凯福士机械有限公司 | Environment-friendly passivating solution used for mechanical plating |
| CN106048581A (en) * | 2016-08-11 | 2016-10-26 | 太仓市凯福士机械有限公司 | High-efficiency passivating solution used for electroplating |
| CN106065470A (en) * | 2016-08-11 | 2016-11-02 | 太仓市凯福士机械有限公司 | A kind of plating Surface treatment passivation solution |
| CN106521469A (en) * | 2016-11-28 | 2017-03-22 | 常熟风范电力设备股份有限公司 | Hot galvanizing steel member surface non-chrome passivation solution and preparation method thereof |
| CN110331393A (en) * | 2019-07-01 | 2019-10-15 | 昆明理工大学 | A kind of steel corrosion inhibiter |
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Application publication date: 20150311 |
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