nickel preplating

英

美

【化】预镀镍

Study of Formation Mechanism of Nickel Crystal and Nickel Preplating on Magnesium Alloys
镁合金电沉积镍形成机理及电镀工艺的研究
An Investigation of the Technology for Nickel Preplating on Aluminium Surface
铝表面预镀镍工艺的研究
The technology for nickel preplating on aluminium surface before electroless Ni-P plating has been investigated.
研究了铝化学镀Ni－P前表面预镀镍的工艺。
The experiment result shows that after the nickel preplating treatment a catalysis surface will be formed, and this catalysis surface will prevent the replacement reaction to take place effectively in the electroless Ni-P plating bath sloution.
试验结果表明.经过预镀镍处理后，铝表面可获得镍沉积的催化表面.有效防止了在化学镀Ni－P槽液中置换反应的发生。
The desirable alkaline degreasing, mild acid etching and alkalic electroless nickel preplating process are experimentally chosen. The mechanism of electroless nickel deposition on zinc-based alloy is discussed. The plating bath is optimized by investigating the influence of ingredients on deposition(?)
试验筛选了合理的化学除油、弱酸浸蚀和碱性预化学镀的工艺，分析锌基合金化学镀镍的机理，通过酸性化学镀镍溶液的成分对镀镍速度的影响进行镀液优化。