expansion

The principles of several expansion methods for radiation crosslinked heat - shrinkable pipe were presented, the advantage and shortcoming of each method were discribed and the effect of several factors on expansion were discussed.

介绍了辐照交联热收缩管的几种扩胀方法的原理,分析各种扩胀方法的优缺点,讨论了影啊扩胀的几个因素。

In order to simulate the acceleration pulse in impact tests, the design method of the acceleration pulse generator by the multi-segment tubes with different thicknesses based on the theory of metal tubes press expansion was researched.

为模拟碰撞实验中的加速度波形的要求,以金属圆管扩胀变形原理,通过不同壁厚圆管的分段组合形式研究了波形发生器的设计方法。

The result shows that the appropriate blowing ratioof the extrudate is 2.

对三组不同结构的扩胀机头进行试验，结果得出：橡胶挤出扩胀方法的适宜扩胀比为２。