Semi-solid multi-blank extruding process and apparatus for forming double-layer composite pipe
Title：
Semi-solid multi-blank extruding process and apparatus for forming double-layer composite pipe
Application Number：
 200710064454
Application Date：
 2007/03/16
Announcement Date：
 2007/08/22
Pub. Date：
Publication Number：
 101020201
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 B21C 23/22B21C 31/00B21C 26/00B21C 35/02C10M 103/02B21C 25/02B21C 23/01C10N 40/36
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Wang Kaikun
Key Words：
 composite pipe, multi-blank, extruding process, apparatus
Abstract：
 The present invention relates to semi-solid forming technology, and is especially semi-solid multi-blank extruding process and apparatus for forming double-layer composite pipe. The technological process includes the following steps: pre-heating the mold to 200-300 deg.c and establishing temperature control system, setting the induction heated blank into the extruding mold, and extruding at regulated speed and stroke to obtain the required composite pipe. The new extruding process for making composite pipe has short procedure, low power consumption and high product quality.
Claim：
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