| CHEN Yuan-jun,LIU Jin-yun,WANG Min,LUO Feng,ZHAO Qi-lin.Pretreatment of Electroless Ni-P Coating on 1060 Aluminum Substrate by Replacing Zinc Directly[J],42(5):77-80 |
| Pretreatment of Electroless Ni-P Coating on 1060 Aluminum Substrate by Replacing Zinc Directly |
| Received:April 25, 2013 Revised:May 31, 2013 |
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| DOI： |
| KeyWord:aluminum substrate electroless plating Ni-P pretreatment direct replacement zinc |
| Author | Institution |
| CHEN Yuan-jun |
School of Material Science and Engineering, Xihua University, Chengdu , China |
| LIU Jin-yun |
School of Material Science and Engineering, Xihua University, Chengdu , China |
| WANG Min |
School of Material Science and Engineering, Xihua University, Chengdu , China |
| LUO Feng |
School of Material Science and Engineering, Xihua University, Chengdu , China |
| ZHAO Qi-lin |
School of Material Science and Engineering, Xihua University, Chengdu , China |
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| Abstract: |
| Discussed Ni-P alloy plating process on aluminium substrate of electroless, used acid zinc directly under the condition of displacement to the feasibility of pretreatment and optimized the pretreatment process using the orthogonal experiment method. The experiments show that the high phosphorous nickel-phosphorus alloy coating can been got when the replacement time is 10 s, the HF concentration is 10 mL / L, the replacement temperature is 25 ℃ , OP emulsifier concentration is 20 mL / L. The thickness of the coating is about 38 μm, the hardness of the coating is about 503 HV, the combines of the coating with the aluminum substrates is well . |
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