CN103255404B - Environment-friendly non-toxic blue-white passivator - Google Patents
Environment-friendly non-toxic blue-white passivator Download PDFInfo
- Publication number
- CN103255404B CN103255404B CN201310180472.5A CN201310180472A CN103255404B CN 103255404 B CN103255404 B CN 103255404B CN 201310180472 A CN201310180472 A CN 201310180472A CN 103255404 B CN103255404 B CN 103255404B
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- environment
- toxic
- blue
- white
- passivator
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention relates to an environment-friendly non-toxic blue-white passivator, which is obtained by uniformly mixing and dissolving sodium silicate, sodium citrate and cobalt nitrate according to a certain proportion. The environment-friendly non-toxic blue-white passivator can obviously improve the corrosion resistance of a coating layer and has a bright blue-white color.
Description
Technical field
The present invention relates to a kind of Environment-friendlynon-toxic non-toxic blue-white passivator, particularly relate to a kind of composition of Environment-friendlynon-toxic non-toxic blue-white passivator, the effect of each composition and compound method.
Background technology
Electro-galvanizing is one of important means of protection anticorrosive metal, and the Passivation Treatment in electroplating industry causes the with serious pollution one of the main reasons of electroplating industry, and main employing is the passivation of sexavalence chromic salts and chromic salt passivation to the passivation technology of zinc coating at present.The Cr contained in traditional chromium hydrochlorate passivating solution
6+have toxicity, environmental pollution is serious, and its range of application is more and more narrower, and environmental requirement is more and more higher.So far, suitability for industrialized production be realized, also not have full ripe non-chromium inactivating technique to carry out the passivation of alternative traditional chromium hydrochlorate both at home and abroad.Therefore research has well ornamental and corrosion resisting property good, environmentally friendly, fundamentally solves the passivation technology of chromic salts passivation Problems existing, promotes Environment-friendlynon-toxic non-toxic and produces, realize Sustainable development significant to electroplating industry.
Summary of the invention
The present invention, in order to improve zinc coating passivation film asepsis environment-protecting, makes in passivating solution not containing Cr simultaneously
6+, Cr
3+and invented a kind of Environment-friendlynon-toxic non-toxic blue-white passivator.
The present invention adopts the article composition Environment-friendlynon-toxic non-toxic blue-white passivator such as water glass, Trisodium Citrate, Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES.
Concrete preparation method of the present invention comprises the step of following order:
A. beaker and glass stick pure water are rinsed and wash;
B. the certain mass Trisodium Citrate weighed up is poured in the beaker had in a small amount of pure water, stir with glass stick and make it fully dissolve;
C. load weighted water glass and Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES are slowly joined in b liquid, stir and make it fully dissolve;
D. add pure water to volume required, adjust pH in 1 ~ 2 scope with nitric acid.
A kind of Environment-friendlynon-toxic non-toxic blue-white passivator of gained of the present invention, for clarification is in orange liquid.
Description of test
The present invention, by after zinc-plated experiment, implements Passivation Treatment in Environment-friendlynon-toxic non-toxic blue-white passivator, after the process of different time, observes the color and luster of coating, and carries out neutral salt spray test and measure its corrosion resisting property.
Embodiment
The concrete preparation process of the present embodiment is as follows:
A. general Low-Cyanide Zinc Plating is prepared, and adjusted to ph, electroplate.
B. take out sample after certain hour, in the nitric acid of 3%, carry out Passivation Treatment after bright dipping, passivation time is 10 ~ 20s.
C. observe the color and luster transforming rete, and carry out neutral salt spray test.
A kind of Environment-friendlynon-toxic non-toxic blue-white passivator technological specification is:
Water glass, Trisodium Citrate, Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES
Note: when there being stirring, passivation time can shorten and passive film is more even.
Claims (1)
1. be applied to an Environment-friendlynon-toxic non-toxic blue-white passivator for zinc coating, it is characterized in that the raw material of passivator is composed as follows: containing Trisodium Citrate 15 ~ 25g/L, water glass 45 ~ 55g/L, Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES 15 ~ 25g/L, all the other are pure water; When Chrome-free blue-white deactivator uses, pH value maintains in 1 ~ 2 scope, and temperature is room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180472.5A CN103255404B (en) | 2013-05-16 | 2013-05-16 | Environment-friendly non-toxic blue-white passivator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310180472.5A CN103255404B (en) | 2013-05-16 | 2013-05-16 | Environment-friendly non-toxic blue-white passivator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103255404A CN103255404A (en) | 2013-08-21 |
| CN103255404B true CN103255404B (en) | 2015-04-15 |
Family
ID=48959602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310180472.5A Expired - Fee Related CN103255404B (en) | 2013-05-16 | 2013-05-16 | Environment-friendly non-toxic blue-white passivator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103255404B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177842B (en) * | 2017-05-25 | 2020-01-21 | 中信大锰矿业有限责任公司 | Phosphorus-free and chromium-free metal surface passivator and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6740361B1 (en) * | 2002-08-29 | 2004-05-25 | Sanchem, Inc. | Passivating of zinc surfaces |
| CN101717932B (en) * | 2008-10-09 | 2012-05-23 | 贵州钢绳股份有限公司 | Galvanized layer chromium-free passivant and use method thereof |
| CN101429661B (en) * | 2008-12-05 | 2010-06-09 | 常熟华冶薄板有限公司 | Molybdate passivating liquid for continuous hot-dipping galvanizing steel plate |
| CN101886260A (en) * | 2010-07-08 | 2010-11-17 | 南通飞拓生物科技有限公司 | Composite film chromium-free passivant |
-
2013
- 2013-05-16 CN CN201310180472.5A patent/CN103255404B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103255404A (en) | 2013-08-21 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20200516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |