CN103255404A - Environment-friendly non-toxic blue-white passivator - Google Patents
Environment-friendly non-toxic blue-white passivator Download PDFInfo
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- CN103255404A CN103255404A CN2013101804725A CN201310180472A CN103255404A CN 103255404 A CN103255404 A CN 103255404A CN 2013101804725 A CN2013101804725 A CN 2013101804725A CN 201310180472 A CN201310180472 A CN 201310180472A CN 103255404 A CN103255404 A CN 103255404A
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- blue
- white
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- 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 environmentally friendly nontoxic blue-white deactivator, relate in particular to a kind of composition of environmentally friendly nontoxic blue-white deactivator, effect and the compound method of each composition.
Background technology
Electro-galvanizing is one of etch-proof important means of protection metal, and the Passivation Treatment in the electroplating industry is to cause the with serious pollution one of the main reasons of electroplating industry, and the main passivation technology to zinc coating that adopts is the passivation of sexavalence chromic salts and chromic salt passivation at present.The Cr that contains in the traditional chromic acid salt 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, realize suitability for industrialized production, also not have full ripe non-chromium inactivating technique to substitute the passivation of traditional chromic acid salt both at home and abroad.So research has good ornamental and corrosion resisting property good, and is environmentally friendly, fundamentally solves the passivation technology of the problem of chromic salts passivation existence, promotes environmentally friendly nontoxic production, and electroplating industry is realized that Sustainable development is significant.
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 environmentally friendly nontoxic blue-white deactivator.
The present invention adopts article such as water glass, Trisodium Citrate, Xiao Suangu to form environmentally friendly nontoxic blue-white deactivator.
Concrete preparation method of the present invention comprises the step of following order:
A. beaker and glass stick are rinsed with pure water and washed;
B. the certain mass Trisodium Citrate that weighs up is poured into and be in the beaker that has in a small amount of pure water, stir with glass stick it is fully dissolved;
C. load weighted water glass and Xiao Suangu are slowly joined in the b liquid, stirring is fully dissolved it;
D. add pure water to volume required, transfer pH in 1～2 scope with nitric acid.
A kind of environmentally friendly nontoxic blue-white deactivator of gained of the present invention is for clarification is orange liquid.
Description of test
The present invention by zinc-plated experiment after, in environmentally friendly nontoxic blue-white deactivator, 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 10～20s.
C. observe the color and luster that transforms rete, and carry out neutral salt spray test.
A kind of environmentally friendly nontoxic blue-white deactivator technological specification is:
Water glass, Trisodium Citrate, Xiao Suangu
Annotate: when stirring, passivation time can shorten and passive film more even.
Claims (1)
1. environmentally friendly nontoxic blue-white deactivator, it is characterized in that the raw material of passivator is composed as follows: contain Trisodium Citrate 15～25g/L, water glass 45～55g/L, Xiao Suangu 15～25g/L, all the other are pure water; The pH value maintained in 1～2 scope when Chrome-free blue-white deactivator used, 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 true CN103255404A (en) | 2013-08-21 |
| CN103255404B 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177842A (en) * | 2017-05-25 | 2017-09-19 | 中信大锰矿业有限责任公司 | A kind of metal surface passivant of without phosphorus Chrome-free and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6740361B1 (en) * | 2002-08-29 | 2004-05-25 | Sanchem, Inc. | Passivating of zinc surfaces |
| CN101429661A (en) * | 2008-12-05 | 2009-05-13 | 常熟华冶薄板有限公司 | Molybdate passivating liquid for continuous hot-dipping galvanizing steel plate |
| CN101717932A (en) * | 2008-10-09 | 2010-06-02 | 贵州钢绳股份有限公司 | Galvanized layer chromium-free passivant and use method thereof |
| 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
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6740361B1 (en) * | 2002-08-29 | 2004-05-25 | Sanchem, Inc. | Passivating of zinc surfaces |
| CN101717932A (en) * | 2008-10-09 | 2010-06-02 | 贵州钢绳股份有限公司 | Galvanized layer chromium-free passivant and use method thereof |
| CN101429661A (en) * | 2008-12-05 | 2009-05-13 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107177842A (en) * | 2017-05-25 | 2017-09-19 | 中信大锰矿业有限责任公司 | A kind of metal surface passivant of without phosphorus Chrome-free and preparation method thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103255404B (en) | 2015-04-15 |
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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 | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20200516 |