wortle

This paper is described to draw tungsten wire with ZTA precision ceramic wortle at a high temperature, The profiles of tungsten wire and mould hole and the relation between them are researched.

ZTA密陶瓷拉丝在高温下拉制钨丝的过程，研究了钨丝和孔表面的状况及两者间的相互关系，讨论了拉丝的用寿命及其拉丝磨损机理。

In order to lower residual heat on the surface of the block,the cooling mans is installed in interwall of the block.The wortle is soaked in cooling watr to reduce its working temperature.

卷筒内壁设备有冷却喷水装置，以降低拉后的钢丝传道线卷筒表面的残余热量，拉的工作温度。