塑料、橡胶及化学工业中,常将体积较大的松散物料,经加热、压缩挤成体小、质密的物料,由“两不等”螺杆推进挤出。所谓“两不等”螺杆是不等距、丝底不等深的非标准件。用眼盘子法在万能车床上车削它时,需要制做辅助装置,如图1所示。被加 Plastic, rubber and chemical industry, often large bulk loose materials, heated, compressed squeeze into small, high-quality materials, from the “two unequal” screw extrusion. The so-called “two unequal” screw is not equidistant, non-standard parts of the bottom of the wire unequal. When using the eye plate method to turn it on a universal lathe, an assistive device needs to be made, as shown in Figure 1. Be added