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
- Authority
- CN
- China
- Prior art keywords
- environment
- blue
- toxic
- white
- passivator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 231100000252 nontoxic Toxicity 0.000 title claims abstract description 12
- 230000003000 nontoxic effect Effects 0.000 title claims abstract description 12
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims abstract description 5
- 239000001509 sodium citrate Substances 0.000 claims abstract description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims 1
- 235000019353 potassium silicate Nutrition 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims 1
- 229940038773 trisodium citrate Drugs 0.000 claims 1
- 239000004115 Sodium Silicate Substances 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 4
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 abstract description 4
- 229910052911 sodium silicate Inorganic materials 0.000 abstract description 4
- 238000002161 passivation Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 5
- 238000009713 electroplating Methods 0.000 description 4
- 239000011651 chromium Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 2
- 150000001844 chromium Chemical class 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical class [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007739 conversion coating Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
本发明涉及了一种环境友好型无毒蓝白色钝化剂，采用硅酸钠、柠檬酸钠、硝酸钴等物品通过一定的比例溶解混合均匀而成，其能显著提高镀层的耐蚀性能，具有明亮的蓝白色。The invention relates to an environment-friendly non-toxic blue-white passivator, which is prepared by dissolving and mixing sodium silicate, sodium citrate, cobalt nitrate and other items in a certain proportion, which can significantly improve the corrosion resistance of the coating. Has a bright blue-white color.
Description
技术领域technical field
本发明涉及一种环境友好型无毒蓝白色钝化剂，尤其涉及一种环境友好型无毒蓝白色钝化剂的成分、各成分的作用及配制方法。The invention relates to an environment-friendly non-toxic blue-white passivator, in particular to the components, functions and preparation methods of the environment-friendly non-toxic blue-white passivator.
背景技术Background technique
电镀锌是保护金属防腐蚀的重要手段之一，而电镀行业中的钝化处理是导致电镀行业污染严重的主要原因之一，目前主要采用的对镀锌层的钝化工艺是六价铬盐钝化和三价铬盐钝化。传统铬酸盐钝化液中含有的Cr6+具有毒性，环境污染严重，其应用范围越来越狭窄，环境要求越来越高。目前为止，要实现工业化生产，国内外还没有完全成熟的无铬钝化工艺来替代传统铬酸盐钝化。因此研究具有良好装饰性且耐蚀性能好，环境友好型，从根本上解决铬盐钝化存在的问题的钝化工艺，推广环境友好型无毒生产，对电镀行业实现可持续发展具有重要意义。Electrogalvanizing is one of the important means to protect metal against corrosion, and the passivation treatment in the electroplating industry is one of the main reasons for serious pollution in the electroplating industry. At present, the passivation process for the galvanized layer is mainly hexavalent chromium salt Passivation and trivalent chromium salt passivation. The Cr 6+ contained in the traditional chromate passivation solution is toxic and seriously pollutes the environment. Its application range is getting narrower and the environmental requirements are getting higher and higher. So far, in order to achieve industrial production, there is no fully mature chromium-free passivation process at home and abroad to replace the traditional chromate passivation. Therefore, it is of great significance for the sustainable development of the electroplating industry to study a passivation process with good decoration, good corrosion resistance, and environmental friendliness, which fundamentally solves the problems existing in chromium salt passivation, and to promote environmentally friendly non-toxic production. .
发明内容Contents of the invention
本发明为了提高镀锌层钝化膜无毒环保，同时使钝化液中不含有Cr6+、Cr3+而发明了一种环境友好型无毒蓝白色钝化剂。The invention invents an environment-friendly non-toxic blue-white passivation agent in order to improve the non-toxic and environment-friendly passivation film of the galvanized layer, and at the same time prevent the passivation solution from containing Cr 6+ and Cr 3+ .
本发明采用硅酸钠、柠檬酸钠、硝酸钴等物品组成环境友好型无毒蓝白色钝化剂。The invention adopts sodium silicate, sodium citrate, cobalt nitrate and the like to form an environment-friendly nontoxic blue-white passivator.
本发明的具体制备方法包括如下顺序的步骤：Concrete preparation method of the present invention comprises the steps of following order:
a.将烧杯及玻璃棒用纯水涮洗；a. Rinse the beaker and glass rod with pure water;
b.将称好的一定质量柠檬酸钠倒入呈有少量纯水中的烧杯中，用玻璃棒搅拌使其充分溶解；b. Pour a certain amount of sodium citrate weighed into a beaker with a small amount of pure water, and stir it with a glass rod to fully dissolve it;
c.将称量好的的硅酸钠和硝酸钴缓慢加入到b液中，搅拌使其充分溶解；c. Slowly add the weighed sodium silicate and cobalt nitrate into liquid b, stir to make it fully dissolve;
d.加入纯水到所需体积，用硝酸调pH在1～2范围内。d. Add pure water to the required volume, and adjust the pH within the range of 1 to 2 with nitric acid.
本发明所得一种环境友好型无毒蓝白色钝化剂，为澄清呈橙色的液体。An environment-friendly nontoxic blue-white passivator obtained in the invention is a clear orange liquid.
实验说明Experiment description
本发明通过镀锌实验后，在环境友好型无毒蓝白色钝化剂中实施钝化处理，经过不同时间的处理后，观察镀层的色泽，并进行中性盐雾试验测定其耐蚀性能。In the present invention, after the galvanizing test, passivation treatment is carried out in an environment-friendly non-toxic blue-white passivator, after treatment for different times, the color of the coating is observed, and the corrosion resistance performance is measured by a neutral salt spray test.
具体实施方式Detailed ways
本实施例的具体制备步骤如下：The specific preparation steps of this embodiment are as follows:
a.配制通用的低氰镀锌溶液，并调整pH值，进行电镀。a. Prepare a common low-cyanide zinc plating solution and adjust the pH value for electroplating.
b.一定时间后取出试样，在3％的硝酸中出光后进行钝化处理，钝化时间为10～20s。b. After a certain period of time, take out the sample, and passivate it after exposure in 3% nitric acid. The passivation time is 10-20s.
c.观察转化膜层的色泽，并进行中性盐雾试验。c. Observe the color of the conversion coating layer, and conduct a neutral salt spray test.
一种环境友好型无毒蓝白色钝化剂工艺规范为：A kind of environmentally friendly non-toxic blue-white passivator process specification is:
硅酸钠、柠檬酸钠、硝酸钴Sodium silicate, sodium citrate, cobalt nitrate
注：当有搅拌时，钝化时间可以缩短且钝化膜更加均匀。Note: When there is agitation, the passivation time can be shortened and the passivation film is more uniform.
Claims (1)
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 passivator 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103255403B (en) | Non-chrome black passivator | |
| CN103173754B (en) | Treating agent for stabilizing rust layer on surface of weathering-resistant steel and method for preparing same | |
| CN105839093A (en) | Normal-temperature chromium-free passivation liquid for electroplated copper and passivation technology of normal-temperature chromium-free passivation liquid | |
| CN105779988A (en) | Chromate-free passivation solution for electroplated zinc and passivation technology thereof | |
| CN101135050B (en) | Metasilicate cleaning inactivating process | |
| CN103243320B (en) | Zinc plating chrome-free blue-white passivator | |
| CN102268664B (en) | Chromium-free passivating solution used for black passivation treatment of zinc plating and preparation method thereof | |
| CN102644073B (en) | Olive passivator with trivalent chromium of Bundy tube | |
| CN104073796A (en) | Metal plating passivation solution and preparation method thereof | |
| CN102644071A (en) | Galvanized trivalent chromium black passivator | |
| CN105316672A (en) | Chromium-containing passivation liquid used for surface treatment of galvanized plate and use method thereof | |
| CN101899659B (en) | Preparation of zinc plated trivalent chromium colour passivator | |
| CN103114281A (en) | Chromium-free passivation solution | |
| CN103215583B (en) | Galvanizing chromium-free iridescent passivation agent | |
| CN103255404B (en) | Environment-friendly non-toxic blue-white passivator | |
| CN102002704B (en) | Trivalent chromium natural colour passivation solution for processing aluminium alloy | |
| CN103695888B (en) | Bundy tube galvanized chromium-free olive passivation agent I | |
| CN103866309B (en) | A kind of trivalent blue-white chromating liquid for the treatment of zinc die casting alloys | |
| CN102174694B (en) | Method for preparing aluminium alloy/trivalent chromium composite conversion film and film-forming liquid thereof | |
| CN103205740B (en) | Zinc-plating chromium-free blue-white passivating agent | |
| CN103233214B (en) | Galvanizing chrome-free colored passivator | |
| CN101654783B (en) | Method for preparing silicate colorized passivating liquid for galvanization member | |
| CN103255402B (en) | A chrome-free blue-white passivator | |
| CN102634783A (en) | Zinc-plated trivalent chromium blue-white passivator | |
| CN105369236A (en) | Non-chrome passivating agent for brown zinc coating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 |