Ni-C复合镀层在高分子PTC热敏电阻器上的应用

Application of Ni-C composite deposit to high polymer PTC thermal resistor

给出了N i-C复合镀层生产工艺流程及工艺规范。介绍了提高铜箔粗化度及加强碳黑分散的工艺措施。讨论了电流密度、pH、温度及搅拌等操作对镀层及N i-C共沉积的影响。总结了镀液维护及注意事项。实验结果表明,该N i-C复合镀层制作的电极片质量全部达到PTC热敏电阻器性能要求。

The process flow and technical regime of Ni-C composite plating were given. The technical measures to improve roughness copper foil and strengthen dispersion of carbon black were introduced. The influences of current density, pH, temperature and stirring on deposit and Ni-C codeposition were discussed. The maintenance and precautions of bath were summarized. The test results prove that the quality of electrode piece covered by Ni-C composite deposit can satisfy the performance requirements of PTC thermal resister.