Title: Continuous extruding method with pre-moulding and special device
Application Number: 200610048029 Application Date: 2006.10.13
Publication Number: 1943892 Publication Date: 2007.04.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B21C23/01;B21C23/02;B21C25/02;B21C26/00
Applicant(s) Name: Kangfeng Science and Technology Co., Ltd., Dalian Address:
Inventor(s) Name: Liu Yuanwen;Song Baoyun
Attorney & Agent: yuzhong jing
Abstract:
    The present invention relates to metal extruding method, and is especially continuous extrusion method with pre-formation. The method is that the blank after entering into the feeding port of the cavity is first preformed and then extruded into the product. Before the extruding mold, there is one performing area in sizes changing with the sizes of the extruded products. The present invention makes it possible to obtain products of different sizes in the same cavity, to reduce the load on the cavity, lower the temperature of cavity stopper, raise the production efficiency of the cavity and increase the service life of the cavity greatly.
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