公开(公告)号：US4590656A

公开(公告)日：1986-05-27

申请号：US737240

申请日：1985-05-23

申请人： Rolf H. Wieland ,  Howard D. Brodbeck ,  Alan J. Paston ,  Casper C. Maucere

发明人： Rolf H. Wieland ,  Howard D. Brodbeck ,  Alan J. Paston ,  Casper C. Maucere

IPC分类号： B23P11/02 ,  B29C55/24 ,  B29C61/08 ,  B29C63/42 ,  B23P19/02 ,  B23P19/04

CPC分类号： B23P11/025 ,  B29C55/24 ,  B29C63/42 ,  B29C61/08 ,  Y10T29/4987 ,  Y10T29/53652 ,  Y10T29/53657

摘要： A method and apparatus for expanding a length of flexible tubing so it can be placed over a cylindrically shaped member which has an outside diameter larger than the inside diameter of the tubing. This is accomplished by first expanding the flexible tubing mechanically with a flexible cage and mandrel to the desired inside diameter and then freezing it at this expanded size by spraying it with a cooling media such as liquid nitrogen. The frozen expanded tube can then be easily placed over the cylindrically shaped member so that when the expanded tubing warms and returns to its original configuration, it will generate a tight pressure bond to the inserted member.

摘要翻译： 一种用于扩展柔性管的长度的方法和装置，使得其可以放置在具有大于管的内径的外径的圆柱形构件上。 这是通过首先用柔性保持架和心轴机械地将柔性管道膨胀到期望的内径，然后通过用诸如液氮的冷却介质喷雾而将其在该膨胀尺寸下冷冻来实现的。 然后，冷冻的膨胀管可以容易地放置在圆柱形构件上，使得当膨胀的管加热并返回到其初始构造时，其将产生与插入构件的紧密的压力接合。