CN103122470B - Automobile cast iron die plating solution - Google Patents
Automobile cast iron die plating solution Download PDFInfo
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- CN103122470B CN103122470B CN201110366600.6A CN201110366600A CN103122470B CN 103122470 B CN103122470 B CN 103122470B CN 201110366600 A CN201110366600 A CN 201110366600A CN 103122470 B CN103122470 B CN 103122470B
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- China
- Prior art keywords
- cast iron
- plating solution
- sulfuric acid
- iron die
- sodium silicofluoride
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Abstract
The invention discloses a kind of automobile cast iron die plating solution, formulated by following composition: chromic acid 200 ~ 250g/L, sulfuric acid 0.8 ~ 1.2g/L and Sodium Silicofluoride 0.5 ~ 1.2g/L, this electroplate liquid is a kind of chromium plating bath, impose enough large electric current and certain depositing time, decompose the chromium in electroplate liquid, separate out plating on material surface.Plated item smooth surface of the present invention, smooth, conservation, environmentally safe.
Description
Technical field
The invention belongs to the electroplate liquid technical field of automotive iron casting and associated components thereof, particularly a kind of automobile cast iron die plating solution.
Background technology
Automobile is more and more to reducing price, emissions reduction, reduction oil consumption, raising power, increasing comfortableness, personalized future development.According to this demand, automobile cast iron member and mould thereof need to have high strength, high tenacity, accurately, consistent, sound, light weight, cleaning and personalized feature.
Automotive iron casting mould is in order to improve hardness, and meeting is at overlay coating usually, because chromium has higher hardness, the most suitable as electrolytic coating.Electrode asymmetric, surface irregularity when existing chromium coating has a plating, the shortcoming that cost is high, according to the improvement of coating, electroplate liquid also needs to improve accordingly.
Summary of the invention
The object of this invention is to provide a kind of automobile cast iron die plating solution, coating is smooth, and electroplate liquid does not corrode substrate.
The present invention is realized by following technical scheme:
A kind of automobile cast iron die plating solution is formulated by following composition:
Chromic acid 200 ~ 250g/L
Sulfuric acid 0.8 ~ 1.2g/L
Sodium Silicofluoride 0.5 ~ 1.2g/L.
A kind of automobile cast iron die plating solution is formulated by following composition:
Chromic acid 250g/L
Sulfuric acid 1.2g/L
Sodium Silicofluoride 1.2g/L.
Described chromic acid anhydride content is 99.8%, and sulfuric acid is analytical pure AR, content is 99.9%, and Sodium Silicofluoride is analytical pure AR, content is 99.0%.
A preparation method for automobile cast iron die plating solution is realized by following technical scheme:
(1) a certain amount of pure water is configured;
(2) pour the chromic acid of 200 ~ 250g/L into, be stirred to and melt completely, then pour the sulfuric acid of 0.8 ~ 1.2g/L into, stir under normal temperature;
(3) pour the Sodium Silicofluoride of 0.5 ~ 1.2g/L into above-mentioned solution, after uniform stirring, energising uses.
Beneficial effect of the present invention is: plated item surfacing of the present invention, electroplate liquid does not corrode substrate, and raw material does not produce pollution to environment.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
Embodiment 1
Raw material: chromic acid anhydride content is 99.9%, sulfuric acid is analytical pure AR, content is 99.9%, and Sodium Silicofluoride is analytical pure AR, content is 99.0%.
Configuration electroplate liquid:
(1) a certain amount of pure water is configured;
(2) pour the chromic acid of 250g/L into, be stirred to and melt completely, then pour the sulfuric acid of 1.2g/L into, stir under normal temperature;
(3) pour the Sodium Silicofluoride of 1.2g/L into above-mentioned solution, after uniform stirring, energising uses.
During use, in electroplate liquid, setting anode and negative electrode, pass into enough strength of current, and electronics decomposes the chromium in electroplate liquid, separates out plating at substrate surface.
Embodiment 2
Raw material: chromic acid anhydride content is 99.8%, sulfuric acid is analytical pure AR, content is 99.9%, and Sodium Silicofluoride is analytical pure AR, content is 99.0%.
Configuration electroplate liquid:
(1) a certain amount of pure water is configured;
(2) pour the chromic acid of 200g/L into, be stirred to and melt completely, then pour the sulfuric acid of 0.8g/L into, stir under normal temperature;
(3) pour the Sodium Silicofluoride of 0.5g/L into above-mentioned solution, after uniform stirring, energising uses.
During use, in electroplate liquid, setting anode and negative electrode, pass into enough strength of current, and electronics decomposes the chromium in electroplate liquid, separates out plating at substrate surface.
Claims (3)
1. an automobile cast iron die plating solution, it is characterized in that by following composition formulated:
Chromic acid 200 ~ 250g/L
Sulfuric acid 0.8 ~ 1.2g/L
Sodium Silicofluoride 0.5 ~ 1.2g/L;
The anhydride content of described chromic acid is 99.9%, and sulfuric acid is analytical pure AR, content is 99.9%, and Sodium Silicofluoride is analytical pure AR, content is 99.0%.
2. an automobile cast iron die plating solution, it is characterized in that by following composition formulated:
Chromic acid 250g/L
Sulfuric acid 1.2g/L
Sodium Silicofluoride 1.2g/L.
3. a preparation method for automobile cast iron die plating solution, it is characterized in that by following technical scheme realize:
(1) a certain amount of pure water is configured;
(2) pour the chromic acid of 200 ~ 250g/L into, be stirred to and melt completely, then pour the sulfuric acid of 0.8 ~ 1.2g/L into, stir under normal temperature;
(3) pour the Sodium Silicofluoride of 0.5 ~ 1.2g/L into above-mentioned solution, after uniform stirring, energising uses.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110366600.6A CN103122470B (en) | 2011-11-17 | 2011-11-17 | Automobile cast iron die plating solution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110366600.6A CN103122470B (en) | 2011-11-17 | 2011-11-17 | Automobile cast iron die plating solution |
Publications (2)
Publication Number | Publication Date |
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CN103122470A CN103122470A (en) | 2013-05-29 |
CN103122470B true CN103122470B (en) | 2015-12-09 |
Family
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Family Applications (1)
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CN201110366600.6A Active CN103122470B (en) | 2011-11-17 | 2011-11-17 | Automobile cast iron die plating solution |
Country Status (1)
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CN (1) | CN103122470B (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101801558A (en) * | 2007-10-24 | 2010-08-11 | 本田技研工业株式会社 | Press mold for sheet metal forming, method of treating press mold surface, and process for manufacturing automobile body |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL297569A (en) * | 1962-09-06 | |||
US3337430A (en) * | 1963-08-05 | 1967-08-22 | M & T Chemicals Inc | Ultrahigh-speed chromium electrodeposition |
FR1575515A (en) * | 1966-03-26 | 1969-07-25 | ||
US3498892A (en) * | 1966-05-04 | 1970-03-03 | M & T Chemicals Inc | Electrodeposition of chromium upon a continuous metal strip |
CN1021580C (en) * | 1991-05-17 | 1993-07-14 | 山东省海阳县恒大汽车修理厂 | Reinforcing chromium-plating process |
CN1141420C (en) * | 2001-02-27 | 2004-03-10 | 中山中粤马口铁工业有限公司 | Process for electroplating Cr onto surface of thin steel sheet |
JP3983194B2 (en) * | 2003-04-01 | 2007-09-26 | トヨタ自動車株式会社 | Press mold |
CN1824939A (en) * | 2006-03-29 | 2006-08-30 | 南京飞燕活塞环股份有限公司 | Method for processing multilayer Cr based network embedded superhard wear-proof particle plating layer piston ring |
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2011
- 2011-11-17 CN CN201110366600.6A patent/CN103122470B/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101801558A (en) * | 2007-10-24 | 2010-08-11 | 本田技研工业株式会社 | Press mold for sheet metal forming, method of treating press mold surface, and process for manufacturing automobile body |
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CN103122470A (en) | 2013-05-29 |
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Effective date of registration: 20170628 Address after: 404100 Chongqing City Economic Development Zone Youting Shuangqiao Town Industrial Park Patentee after: Chongqing Taoyuan Metal Surface Treatment Co., Ltd. Address before: 318023, Zhejiang Province, Huangyan District, Taizhou City tau Heung tau Hill Village No. 26 Patentee before: Fu Shizheng |