全封闭铜加热圈主要由黄铜管来密封发热体，发热体采用进口镍铬丝和耐高温高级云母板，引出线采用耐高温纤维线以及外包不锈钢织带的出线方式，使引出线耐磨耐用。铜加热圈的接线处采用铜帽与发热体连接，用银纤焊焊接，使铜加热圈完全处于全密封的状态。全封闭铜加热圈适用于有液体渗漏的加热部件。如注塑机射嘴部位和模具接触部位有漏胶现象,胶体溶液很容易渗透传统加热圈的主体从而导致烧毁，经常需要更换。全封闭铜加热圈完全可以避免以上问题。铜加热均匀、散热快，使用寿命长，绝缘性能良好，耐高压等特点.

       The fully enclosed copper heating ring is mainly composed of brass tube to seal the heating element. The heating element adopts imported nickel chrome wire and high temperature resistant high mica plate. The lead wire adopts high temperature fiber line and the outlet of stainless steel ribbon, The Copper heating ring of the connection with copper cap and heating element connection, with silver-fiber welding, so that the copper heating ring completely in a fully sealed state. Fully enclosed copper heating ring for heating parts with liquid leakage. Such as injection molding machine nozzle parts and mold contact parts of the phenomenon of leakage glue, colloidal solution is easy to penetrate the main body of the traditional heating ring to lead to burn, often need to be replaced. Fully enclosed copper heating ring can avoid the above problems. Cop