CN103243320A - Zinc plating chrome-free blue-white passivator - Google Patents
Zinc plating chrome-free blue-white passivator Download PDFInfo
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- CN103243320A CN103243320A CN2013101804744A CN201310180474A CN103243320A CN 103243320 A CN103243320 A CN 103243320A CN 2013101804744 A CN2013101804744 A CN 2013101804744A CN 201310180474 A CN201310180474 A CN 201310180474A CN 103243320 A CN103243320 A CN 103243320A
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- passivator
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- blue
- free
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- Chemical Treatment Of Metals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention relates to a zinc plating chrome-free blue-white passivator. The blue-white passivator is prepared by means of dissolving and evenly mixing the materials such as sodium molybdate, sodium citrate, sodium phosphate, phytic acid and cobalt sulfate by a certain ratio. The passivator can be used for remarkably enhancing the corrosion resisting performance of a plating layer and simultaneously bringing a bright blue color.
Description
Technical field
The present invention relates to a kind of zinc-plated Chrome-free blue-white deactivator, relate in particular to a kind of composition of zinc-plated Chrome-free blue-white deactivator, effect and the compound method of each composition.
Background technology
Zinc coating can be protected matrix, and good anti-corrosion effect is arranged, and more can significantly improve corrosion resistance through Passivation Treatment.But in the chromating process, can produce the aerosol harmful to HUMAN HEALTH, and the waste water serious environment pollution of discharging, enhancing along with people's environmental consciousness, countries in the world government has begun in environmental regulation strict restriction to be made in the use of chromic salt and the discharging of waste water, therefore in metal finishing, ban use of chromic salt, become inexorable trend the most at last, the passivating technique of the necessary complete Chrome-free of active development.
Trivalent chromium and chromium-free deactivation both direction are mainly adopted in the passivation of environment-friendly type.The chromium-free deactivation system has titanate, molybdate, tungstate, rare earth, silicate, present these Chrome-free system passive film asepsis environment-protectings, solidity to corrosion and outward appearance all improve a lot in recent years, satisfied common handware and electroplated requirement, so non-chromium inactivating technique has wide practical use industrial.
Summary of the invention
The present invention makes simultaneously and does not contain Cr in the passivating solution in order to improve zinc coating passivation film asepsis environment-protecting
6+, Cr
3+And invented a kind of zinc-plated Chrome-free blue-white deactivator.
The present invention adopts article such as Sodium orthomolybdate, sodium phosphate, Trisodium Citrate, phytic acid, rose vitriol to form a kind of zinc-plated Chrome-free blue-white deactivator.
Concrete preparation method of the present invention comprises the step of following order:
A. the Trisodium Citrate of calculated amount is poured in a small amount of pure water, stirring is fully dissolved it;
B. Sodium orthomolybdate and the sodium phosphate with calculated amount slowly adds, and stirs it is fully dissolved;
C. the phytic acid of calculated amount is poured into, stirred;
D. the rose vitriol of calculated amount is poured into, stirred, it is fully dissolved;
E. behind the pure water constant volume with calculated amount, left standstill 10 minutes, transfer pH in 1～2 scope with nitric acid.
A kind of zinc-plated Chrome-free blue-white deactivator of gained of the present invention is the liquid of clarification beige.
Description of test
The present invention by zinc-plated experiment after, in the Chrome-free blue and white passivation solution, implement Passivation Treatment, through after the processing of different time, observe the color and luster of coating, and carry out neutral salt spray test and measure its corrosion resisting property.
Embodiment
The concrete preparation process of present embodiment is as follows:
A. prepare general low-cyanide zinc plating solution, and adjust the pH value, electroplate.
B. take out sample behind the certain hour, carry out Passivation Treatment after the bright dipping in 3% nitric acid, passivation time is 8～20s.
C. observe the color and luster that transforms rete, and carry out neutral salt spray test.
A kind of zinc-plated Chrome-free blue-white deactivator technological specification is: Sodium orthomolybdate, Trisodium Citrate, sodium phosphate, phytic acid, rose vitriol
Claims (1)
1. zinc-plated Chrome-free blue-white deactivator, it is characterized in that the raw material of passivator is composed as follows: contain Sodium orthomolybdate 10～40g/L, sodium phosphate 10～30g/L, Trisodium Citrate 10～20g/L, phytic acid 5～15ml/L, rose vitriol 1～4g/L, all the other are pure water; The pH value maintained in 1～2 scope when Chrome-free blue-white deactivator used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180474.4A CN103243320B (en) | 2013-05-16 | 2013-05-16 | Zinc plating chrome-free blue-white passivator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180474.4A CN103243320B (en) | 2013-05-16 | 2013-05-16 | Zinc plating chrome-free blue-white passivator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103243320A true CN103243320A (en) | 2013-08-14 |
| CN103243320B CN103243320B (en) | 2015-06-10 |
Family
ID=48923192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310180474.4A Expired - Fee Related CN103243320B (en) | 2013-05-16 | 2013-05-16 | Zinc plating chrome-free blue-white passivator |
Country Status (1)
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| CN (1) | CN103243320B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404497A (en) * | 2014-12-11 | 2015-03-11 | 天长市飞龙金属制品有限公司 | Passivant for metal coating |
| CN104451636A (en) * | 2014-11-14 | 2015-03-25 | 无锡伊佩克科技有限公司 | Chromium-free passivation solution for tin-plated steel plate and preparation method of chromium-free passivation solution |
| CN104451646A (en) * | 2014-12-11 | 2015-03-25 | 天长市飞龙金属制品有限公司 | Tin coating passivator |
| CN105483678A (en) * | 2015-12-17 | 2016-04-13 | 山东建筑大学 | Environment-friendly gold imitating method for galvanized decorative board |
| CN109280914A (en) * | 2018-11-26 | 2019-01-29 | 山东建筑大学 | A kind of preparation method of green galvanized chromium-free sky blue passivator |
-
2013
- 2013-05-16 CN CN201310180474.4A patent/CN103243320B/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 杨培霞等: "镀锌蓝白无铬钝化工艺的研究", 《电镀与环保》 * |
| 陈高伟等: "镀锌层三价铬银白色钝化工艺现状及无铬钝化发展趋势", 《材料保护》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104451636A (en) * | 2014-11-14 | 2015-03-25 | 无锡伊佩克科技有限公司 | Chromium-free passivation solution for tin-plated steel plate and preparation method of chromium-free passivation solution |
| CN104404497A (en) * | 2014-12-11 | 2015-03-11 | 天长市飞龙金属制品有限公司 | Passivant for metal coating |
| CN104451646A (en) * | 2014-12-11 | 2015-03-25 | 天长市飞龙金属制品有限公司 | Tin coating passivator |
| CN105483678A (en) * | 2015-12-17 | 2016-04-13 | 山东建筑大学 | Environment-friendly gold imitating method for galvanized decorative board |
| CN105483678B (en) * | 2015-12-17 | 2018-05-08 | 山东建筑大学 | The method that gold is imitated in zinc-plated decorative panel environmental protection |
| CN109280914A (en) * | 2018-11-26 | 2019-01-29 | 山东建筑大学 | A kind of preparation method of green galvanized chromium-free sky blue passivator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103243320B (en) | 2015-06-10 |
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Address after: Fengming road Licheng District 250101 Shandong city in Ji'nan Province, Shandong Jianzhu University Applicant after: Shandong Construction University Address before: Fengming Road District of Ji'nan City, Shandong province 250101 port development Shandong Jianzhu University Applicant before: Shandong Construction University |
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| CB03 | Change of inventor or designer information |
Inventor after: Sun Qilei Inventor after: Ye Jingya Inventor after: Shi Lei Inventor after: Wang Shengnan Inventor after: Shi Haoyang Inventor after: Song Wenting Inventor after: Shi Jiazheng Inventor before: Shi Lei Inventor before: Shi Jiazheng Inventor before: Shi Haoyang |
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Free format text: CORRECT: INVENTOR; FROM: SHI LEI SHI JIAZHENG SHI HAOYANG TO: SUN QILEI YE JINGYA SHI LEI WANG SHENGNAN SHI HAOYANG SONG WENTING SHI JIAZHENG |
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