| WU Gan-hong,LI De-Liang,DONG Kun,CAO Jing.Technology Research about Non-cyanide Gold Plating[J],37(3):52-54,86 |
| Technology Research about Non-cyanide Gold Plating |
| Received:February 23, 2008 Revised:June 10, 2008 |
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| DOI： |
| KeyWord:Non-cyanide electroless plating Sodium gold sulfite Electroless gold plating |
| Author | Institution |
| WU Gan-hong |
School of Resource and Environment, CSFTU, Changsha , China |
| LI De-Liang |
School of Resource and Environment, CSFTU, Changsha , China |
| DONG Kun |
School of Resource and Environment, CSFTU, Changsha , China |
| CAO Jing |
School of Resource and Environment, CSFTU, Changsha , China |
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| Abstract: |
| In order to determine optimum conditions of a cyanide-free sodium gold sulfite electroless gold plating process and make its have industrial possibility, the effects of solution components and operative condition of this cyanide-free electroless gold plating on coating were studied by coating thickness test and coating binding force test. The results show that an optimal condition of the process can prepare a smooth gold coating. The optimized factors are as follows: gold concentration is l N 3g/L; sodium sulfite concentration is 13g/L; molar ration of ethylenediamine and gold ion is (6 ~ 10) :1 ,potassium phosphate dibasic concentration is 30g/L,the pH value is 8 ~ 9,the temperature is 50 ~ 60℃. |
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