Title: Method for producing metal composite seamless pipe with metallurgical binding
Application Number: 200610113270 Application Date: 2006.09.21
Publication Number: 1943979 Publication Date: 2007.04.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B23P23/04;B21C29/00;B21C31/00;C21D11/00;C21D9/08
Applicant(s) Name: Sichuan Changcheng Specific Steel Co., Ltd., Panga Address:
Inventor(s) Name: Man Jingtao;Miao Changjiang;Fan Yingjun;Liu Jianbi
Attorney & Agent: liuru e
Abstract:
    The present invention belongs to the field of seamless steel pipe producing technology, and is especially production process of seamless composite metal pipe with metallurgical binding. The production process includes the following steps: heating the composite pipe blank in an induction heating furnace, hot extruding the composite pipe blank in an extruder for different metal layers to deform synchronously and homogeneously and to form the metallurgical binding between the different layers, annealing in an annealing furnace, straightening, end cutting and lengthing, and packing. The seamless composite metal pipe with metallurgical binding has low production cost.
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