| XIE Shuang-xian,ZHANG Yu-feng,YANG Hong.Study on the Composite Brush Plating of Ni-P Alloy on Aluminum Casting[J],37(6):69-70,86 |
| Study on the Composite Brush Plating of Ni-P Alloy on Aluminum Casting |
| Received:August 18, 2008 Revised:December 10, 2008 |
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| DOI： |
| KeyWord:Aluminum-cast Ni-P alloy Electro-brush plating |
| Author | Institution |
| XIE Shuang-xian |
Wuhan Ordnance Noncomrmssioned Officer School, Wuhan , China |
| ZHANG Yu-feng |
Wuhan Ordnance Noncomrmssioned Officer School, Wuhan , China |
| YANG Hong |
Wuhan Ordnance Noncomrmssioned Officer School, Wuhan , China |
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| Abstract: |
| Aluminum-cast boxes often tum useless due to abrasion. But such boxes can be restored by brush plating of Ni-P alloy. The simple process can recover the original fitting size of the castings and prolong the service life of the boxes. The formula of the Ni-P brush plating bath, the specific pretreatment solution and electro-bursh plating procee were studied. The specific pretreatment effectively prevents the reoxidation on the surface of the casting, provides a strong binding force for the plating, and fixes the defect of spalling. On the alurmnum casting, high tap alkaline copper is applicated as the interface layer, and Ni-P alloy as the working layer. The plating process gives the boxes hard coating ( 613HV hardness) and good wear-resistance, thus can solve the difficult problem of restoring abraded aluminum-cast boxes. |
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