摘要
介绍了塑料管材真空定径的基本原理及定径元件的结构形式，叙述了不同结构定径元件的应用场合以及确定定径元件尺寸的依据，并给出了真空度与管材性能之间的关系。
The principle of vacuum calibration of plastis pipes and structure of various calibrating devices are introduced.And how to decide the dimensions of calibrating devices is presented. The relationship between vacuum values and performane of plastics pipes is described also.
出处
《中国塑料》
CAS
CSCD
北大核心
1999年第5期105-109,共5页
China Plastics
关键词
真空定径
塑料
管材
Vacuum calibration ,Calibration die,Sizing ring ,Vacuum value
