摘要
探讨了在铝基体上化学镀镍-磷合金镀层的工艺中,采用酸性条件下直接置换锌进行前处理的可行性,并用正交实验法对该预处理工艺进行了优化。结果表明:当置换时间为10 s,HF用量为10 mL/L,置换温度为25℃,OP乳化剂用量为20 mL/L时,施镀后,可得到厚约38μm,硬度约503HV,且与基体结合良好的高磷镍-磷合金镀层。
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 I0 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 38μm, the hardness of the coating is about 503HV, the combines of the coating with the aluminum substrates is well.
出处
《表面技术》
EI
CAS
CSCD
北大核心
2013年第5期77-80,共4页
Surface Technology
关键词
铝基体
镍-磷化学镀
前处理
直接置换锌
aluminum substrate
electroless plating Ni-P
pretreatment
direct replacement zinc
