CN103397373A - Deplating solution - Google Patents
Deplating solution Download PDFInfo
- Publication number
- CN103397373A CN103397373A CN2010102127193A CN201010212719A CN103397373A CN 103397373 A CN103397373 A CN 103397373A CN 2010102127193 A CN2010102127193 A CN 2010102127193A CN 201010212719 A CN201010212719 A CN 201010212719A CN 103397373 A CN103397373 A CN 103397373A
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- CN
- China
- Prior art keywords
- acid
- chromic
- deplating solution
- phosphoric acid
- boric acid
- 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.)
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- Electroplating Methods And Accessories (AREA)
Abstract
The invention relates to a deplating solution. The deplating solution is composed of chromic acid, phosphoric acid and boric acid, wherein the weight percentage ratio of chromic anhydride to phosphoric acid to boric acid is 120-160:450-650:10-20, chromic acid has a strong oxidation capability under an acidic condition, phosphoric acid is a medium strong acid and has an acidity adjusting effect, and boric acid is a weak acid and has a buffering effect. The deplating solution has the advantages of weak corrosivity to the surface of a plated member, realization of direct plating after washing the deplated member, cost saving, small toxicity and safe use.
Description
Technical field
The present invention relates to a kind of chemical feedstocks, is more specifically a kind of solution of electrolytic deplating process.
Background technology
At present the wheel of nickel and copper nickel chromium triangle Electroplating Production adopts the chemical strip method strip take the sodium cyanide of severe toxicity as raw material always, this method defect ware rate is high, and can't again return plating, for not rotatable technique, defect ware is directly scrapped, can't transform processing, and owing to using violent in toxicity very large to the human injury, environmental pollution is also more serious.
Goal of the invention
The objective of the invention is to provide a kind of strip solution, it is not strong to the plating piece surface corrosion, and the strip workpiece can directly plate after cleaning again, provide cost savings, and its toxicity is little, uses safety.
Summary of the invention
A kind of strip solution of the present invention, it is comprised of chromic acid, phosphoric acid, boric acid, chromic anhydride wherein: phosphoric acid: the boric acid weight percent is: 120-160: 450-650: 10-20, chromic acid has stronger oxidation capacity under acidic conditions, phosphoric acid is middle strong acid, play the effect of regulating acidity, boric acid is weak acid, plays the effect of buffering.
Adopt strip solution provided by the invention, it is not strong to the plating piece surface corrosion, and the strip workpiece can directly plate after cleaning again, provide cost savings, and its toxicity is little, uses safety.
Claims (1)
1. strip solution, it is characterized in that: it is comprised of chromic acid, phosphoric acid, boric acid, wherein chromic anhydride: phosphoric acid: the boric acid weight percent is: 120-160: 450-650: 10-20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102127193A CN103397373A (en) | 2010-06-25 | 2010-06-25 | Deplating solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102127193A CN103397373A (en) | 2010-06-25 | 2010-06-25 | Deplating solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103397373A true CN103397373A (en) | 2013-11-20 |
Family
ID=49561068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102127193A Pending CN103397373A (en) | 2010-06-25 | 2010-06-25 | Deplating solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103397373A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128463A (en) * | 1978-03-02 | 1978-12-05 | Trw Inc. | Method for stripping tungsten carbide from titanium or titanium alloy substrates |
| US4356069A (en) * | 1981-03-09 | 1982-10-26 | Ross Cunningham | Stripping composition and method for preparing and using same |
| CN1164581A (en) * | 1996-05-08 | 1997-11-12 | 张贺林 | Application of dilute chromic acid solution in electrolytic deplating process |
| CN1552954A (en) * | 2003-05-28 | 2004-12-08 | 江西省恒润实业发展有限公司 | Electrolytic removing method for chemical copper cladding in foamed lead-tin alloy cladding |
| CN1626703A (en) * | 2003-12-11 | 2005-06-15 | 新光电气工业株式会社 | Electrolytic copper-stripping liquid and electrolytic stripping method |
-
2010
- 2010-06-25 CN CN2010102127193A patent/CN103397373A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128463A (en) * | 1978-03-02 | 1978-12-05 | Trw Inc. | Method for stripping tungsten carbide from titanium or titanium alloy substrates |
| US4356069A (en) * | 1981-03-09 | 1982-10-26 | Ross Cunningham | Stripping composition and method for preparing and using same |
| CN1164581A (en) * | 1996-05-08 | 1997-11-12 | 张贺林 | Application of dilute chromic acid solution in electrolytic deplating process |
| CN1552954A (en) * | 2003-05-28 | 2004-12-08 | 江西省恒润实业发展有限公司 | Electrolytic removing method for chemical copper cladding in foamed lead-tin alloy cladding |
| CN1626703A (en) * | 2003-12-11 | 2005-06-15 | 新光电气工业株式会社 | Electrolytic copper-stripping liquid and electrolytic stripping method |
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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: 20131120 |