CN102304705A - Trivalent chromium blue-white passivating agent - Google Patents
Trivalent chromium blue-white passivating agent Download PDFInfo
- Publication number
- CN102304705A CN102304705A CN201110276808A CN201110276808A CN102304705A CN 102304705 A CN102304705 A CN 102304705A CN 201110276808 A CN201110276808 A CN 201110276808A CN 201110276808 A CN201110276808 A CN 201110276808A CN 102304705 A CN102304705 A CN 102304705A
- Authority
- CN
- China
- Prior art keywords
- passivating agent
- trivalent chromium
- white
- metal surface
- blue
- 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.)
- Pending
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052804 chromium Inorganic materials 0.000 title claims abstract description 14
- 239000011651 chromium Substances 0.000 title claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 title abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007800 oxidant agent Substances 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract description 2
- 238000004381 surface treatment Methods 0.000 abstract description 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 2
- PHFQLYPOURZARY-UHFFFAOYSA-N chromium trinitrate Chemical compound [Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PHFQLYPOURZARY-UHFFFAOYSA-N 0.000 abstract 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 abstract 1
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 abstract 1
- 229910001981 cobalt nitrate Inorganic materials 0.000 abstract 1
- 235000006408 oxalic acid Nutrition 0.000 abstract 1
- 239000008213 purified water Substances 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 241001163841 Albugo ipomoeae-panduratae Species 0.000 description 2
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 2
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 description 1
- 235000010263 potassium metabisulphite Nutrition 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention provides a trivalent chromium blue-white passivating agent and relates to the technical field of metal surface treatment. The trivalent chromium blue-white passivating agent is characterized by comprising the following components by weight percent: 10-20% of purified water, 50-60% of chromium nitrate, 10-20% of oxalic acid, 1-6% of cobalt nitrate, 10-20% of malonic acid and 4-8% of sodium hydroxide. The trivalent chromium blue-white passivating agent provided by the invention has long use period and is free of hexavalent chromium and hydrogen peroxide or other strong oxidants, and the generated wastewater is easily treated, thus the passivating agent is an environmentally-friendly passivating agent; and the passivating agent has low concentration and low production cost, is economical and practical, and can be used for improving the salt fog resistance and corrosion resistance of the metal surface and prolonging the service life of the metal surface.
Description
Technical field
The present invention relates to field of metal surface treatment technology, be specifically related to a kind of trivalent chromium bright blue passivator.
Background technology
Steel-iron components all will carry out Passivation Treatment usually after electro-galvanizing or pot galvanize, to prevent producing white rust in the short period of time.Because zinc coating is easy to produce white rust under the environment of humidity, have a strong impact on attractive in appearance and work-ing life, so steel part need be carried out Passivation Treatment after zinc-plated usually.Traditional passivator causes serious pollution because contain carcinogenic sexavalent chrome to environment, is replaced by the trivalent chromium passivator of environmental protection gradually at present.Early stage trivalent chromium passivator is by chromic acid (CrO3) and reductive agent (for example potassium pyrosulfite) reaction.
Summary of the invention
It is a kind of economical and practical that the present invention needs the technical solution problem to provide, the trivalent chromium bright blue passivator that cost is low.
Trivalent chromium bright blue passivator is characterized in that: forms by following components in weight percentage,
Its optimum weight proportioning does,
Beneficial effect of the present invention: trivalent chromium bright blue passivator life cycle provided by the invention is long, does not contain sexavalent chrome, is easy to wastewater treatment, does not also contain ydrogen peroxide 50 or other strong oxidizer, is a kind of passivator of environment-friendly type; And concentration is low, and production cost is low, and is comparatively economical and practical, and salt fog resistance, corrosion resistance and the work-ing life of metallic surface are prolonged.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
Trivalent chromium bright blue passivator is made up of following components in weight percentage,
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification sheets just illustrates principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention; The present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. trivalent chromium bright blue passivator is characterized in that: forms by following components in weight percentage,
2. trivalent chromium bright blue passivator according to claim 1 is characterized in that: its optimum weight proportioning does,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110276808A CN102304705A (en) | 2011-09-16 | 2011-09-16 | Trivalent chromium blue-white passivating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110276808A CN102304705A (en) | 2011-09-16 | 2011-09-16 | Trivalent chromium blue-white passivating agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102304705A true CN102304705A (en) | 2012-01-04 |
Family
ID=45378616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110276808A Pending CN102304705A (en) | 2011-09-16 | 2011-09-16 | Trivalent chromium blue-white passivating agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102304705A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924230A (en) * | 2014-03-27 | 2014-07-16 | 安徽华兴金属有限责任公司 | Passivation treating agent for chromium-plating steel part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101130867A (en) * | 2007-10-11 | 2008-02-27 | 上海交通大学 | Trivalent chromium iridescent passivator and preparation method thereof |
| CN101812681A (en) * | 2010-05-27 | 2010-08-25 | 贵阳华科电镀有限公司 | Passivation formula of zincification trivalent chromium |
| CN102011118A (en) * | 2010-12-24 | 2011-04-13 | 杭州东方表面技术有限公司 | Trivalent chromium passivating agent for zinc and zinc alloy coatings |
| CN102041497A (en) * | 2009-10-13 | 2011-05-04 | 北京中科三环高技术股份有限公司 | Trivalent-chromium blue-white passivator for zinc-plated permanent magnetic material and passivation method thereof |
-
2011
- 2011-09-16 CN CN201110276808A patent/CN102304705A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101130867A (en) * | 2007-10-11 | 2008-02-27 | 上海交通大学 | Trivalent chromium iridescent passivator and preparation method thereof |
| CN102041497A (en) * | 2009-10-13 | 2011-05-04 | 北京中科三环高技术股份有限公司 | Trivalent-chromium blue-white passivator for zinc-plated permanent magnetic material and passivation method thereof |
| CN101812681A (en) * | 2010-05-27 | 2010-08-25 | 贵阳华科电镀有限公司 | Passivation formula of zincification trivalent chromium |
| CN102011118A (en) * | 2010-12-24 | 2011-04-13 | 杭州东方表面技术有限公司 | Trivalent chromium passivating agent for zinc and zinc alloy coatings |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924230A (en) * | 2014-03-27 | 2014-07-16 | 安徽华兴金属有限责任公司 | Passivation treating agent for chromium-plating steel part |
| CN103924230B (en) * | 2014-03-27 | 2016-05-18 | 安徽华兴金属有限责任公司 | Electrodeposited chromium steel and iron parts passivation treating agent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120104 |