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Title:Material selection, hardness after heat treatment and use specification of steel extrusion toolings
Authors: BAO Jin-ping1  ZHAO Yun-lu2  XUE Rong-jing2 
Unit: 1. Kunming Fortune Equipment Import & Export Co.  Ltd.  Kunming 650051  China  2. Shenyang Xinxin Mould Co.  Ltd.  Shenyang 110043  China 
KeyWords: steel extrusion  toolings  hot working die steel  high temperature strength  thermal fatigue 
ClassificationCode:TG76
year,vol(issue):pagenumber:2012,37(6):72-76
Abstract:

For the high temperature strength and toughness of the traditional hot working die steel materials can not meet the requirement of the steel extrusion toolings, and their comprehensive costs are high, so the hot working die steel material 1.2367 suiting for steel extrusion toolings was proposed. And the differences between them and the traditional hot working die steel materials were compared. The material selection, suitable hardness after heat treatment and use specification of each steel extrusion toolings were described in detail. The frequently water cooling usually resulted in the die steel thermal fatigue, so the viewpoint of water cooling replaced by several toolings cycle use and natural cooling was proposed.

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