Copper and plastic coefficient of expansion, and, therefore, more close to the plastic used in electroplating electroless copper plating coatinglayer as conductive.
金属铜与塑料的膨胀系数比较接近，因此，在塑料电镀中常用化学镀铜层作为电镀的导电镀层。
2
Exothermic efficiency, metallographical structure and transition region of coatinglayer were also investigated.
还研究了放热效应，金相组织与涂层过渡层。
3
The coatinglayer hardness depends not only on the coating material, but also on the applied load and coatinglayer thickness.