CN103173755A - Tinning passivation solution - Google Patents
Tinning passivation solution Download PDFInfo
- Publication number
- CN103173755A CN103173755A CN 201110432776 CN201110432776A CN103173755A CN 103173755 A CN103173755 A CN 103173755A CN 201110432776 CN201110432776 CN 201110432776 CN 201110432776 A CN201110432776 A CN 201110432776A CN 103173755 A CN103173755 A CN 103173755A
- Authority
- CN
- China
- Prior art keywords
- tinning
- passivation solution
- free
- plated
- zinc
- 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
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- Chemical Treatment Of Metals (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a tinning passivation solution which comprises 30-80 g/L phosphoric acid, 0.5-2 g/L phytic acid, 20-50 g/L trisodium phosphate, 1-5 g/L cobalt chloride and the balance of distilled water. The invention has the advantages of reasonable formula, high stability and high oxidation resistance; and the tinning passivation solution is free of the harmful substance chrome, and thus, is environment-friendly, pollution-free and harmless to the human body.
Description
Technical field
The invention belongs to the chemical plating stannum solution technical field, be specifically related to a kind of zinc-plated passivating dip.
Background technology
Have welding property preferably after materials of electronic components is zinc-plated, also need to carry out Passivation Treatment in order to improve anti-oxidant blackout, present passivating dip complex process and contain objectionable impurities has pollution and harm operator's physical and mental health to environment.
Summary of the invention
The object of the present invention is to provide a kind of formula reasonable, antioxidant property is high, and is environment friendly and pollution-free, the zinc-plated passivating dip harmless to operator.
Technical solution of the present invention is:
A kind of zinc-plated passivating dip is characterized in that: by following compositions be by weight ratio phosphoric acid 30-80g/L, phytic acid 0.5-2g/L, tertiary sodium phosphate 20-50g/L, cobalt chloride 1-5g/L, surplus distilled water.
The present invention fills a prescription rationally, stability of solution and good in oxidation resistance, and the chromium that do not contain hazardous substance, environment friendly and pollution-free, harmless.
Embodiment:
Embodiment 1
A kind of zinc-plated passivating dip, by following compositions be by weight ratio, phosphatase 24 0g/L, phytic acid 0.5g/L, tertiary sodium phosphate 30g/L, cobalt chloride 2g/L, surplus distilled water fully stirs, and pH value is controlled at 5, temperature 40-50 ° of C, passivation time is 10S, and the product properties that the process Experimental Comparison is produced has reached the state of the art of present chromium-containing solution.
Claims (1)
1. a zinc-plated passivating dip, is characterized in that: by following compositions be by weight ratio phosphoric acid 30-80g/L, phytic acid 0.5-2g/L, tertiary sodium phosphate 20-50g/L, cobalt chloride 1-5g/L, surplus distilled water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110432776 CN103173755A (en) | 2011-12-21 | 2011-12-21 | Tinning passivation solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110432776 CN103173755A (en) | 2011-12-21 | 2011-12-21 | Tinning passivation solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103173755A true CN103173755A (en) | 2013-06-26 |
Family
ID=48633930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110432776 Pending CN103173755A (en) | 2011-12-21 | 2011-12-21 | Tinning passivation solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103173755A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099649A (en) * | 2014-06-25 | 2014-10-15 | 武汉钢铁(集团)公司 | Passivating agent for electrolytic tinplate |
| CN108505080A (en) * | 2018-04-13 | 2018-09-07 | 德庆县瑞晶电子材料有限公司 | A kind of DRH-30 compounds for tin-plated product surface post-processing function |
-
2011
- 2011-12-21 CN CN 201110432776 patent/CN103173755A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104099649A (en) * | 2014-06-25 | 2014-10-15 | 武汉钢铁(集团)公司 | Passivating agent for electrolytic tinplate |
| CN104099649B (en) * | 2014-06-25 | 2016-08-24 | 武汉钢铁(集团)公司 | Passivator for electrolytic tinplate |
| CN108505080A (en) * | 2018-04-13 | 2018-09-07 | 德庆县瑞晶电子材料有限公司 | A kind of DRH-30 compounds for tin-plated product surface post-processing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |