涂料覆层对黑色金属挤压铸造模具热平衡温度的影响

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英文篇名：Influence of Coating Layer on the Thermal Balance Temperature of ferrous Metal Liquid-forging Die 作者：刘修忠 ; 朱兴元 ; 王华君 ; 彭春宇 ; 桂千富 ; 惠有科 英文作者：Liu Xiuzhong;Zhu Xingyuan;Wang Huajun;Peng Chunyu;Gui Qianfu;Hui Youke;School of Materials Science and Engineering,Wuhan University of Technology;Ganghan Industrial Co.,Ltd.; 关键词：涂料层 ; 黑色金属 ; 挤压铸造 ; 循环热平衡 ; 模具温度 英文关键词：Coating Layer;;Ferrous Metal;;Liquid Forging;;Cyclic Thermal Equilibrium;;Die Temperature 中文刊名：TZZZ 英文刊名：Special Casting & Nonferrous Alloys 机构：武汉理工大学材料科学与工程学院;十堰港汉实业有限公司; 出版日期：2018-03-20 出版单位：特种铸造及有色合金 年：2018 期：v.38;No.300 基金：国家自然科学基金资助项目(51475346) 语种：中文; 页：TZZZ201803016 页数：3 CN：03 ISSN：42-1148/TG 分类号：48-50

摘要

为验证喷涂绝热材料对黑色金属挤压铸造模具热平衡温度的影响,采用ProCAST软件模拟了汽车变速器副箱锥环支板的挤压铸造成形过程,对绝热涂料模具的温度场进行分析。结果表明,涂料层可以有效抑制模具型腔温度的大幅波动,使模具型腔温度缓慢上升。涂料层降低模具工作温度作用有限,难以解决因黑色金属挤压铸造模具型腔过早失效问题。采用强制冷却的热管理方案可成为提高黑色金属挤压铸造模具寿命的新途径。
        To verify the effects of spraying heat insulating material on the peak temperature of ferrous metal liquid forging die,ProCAST software was used to simulate the liquid forging process of gearbox plate and analyze the temperature field of the die surface with spraying heat insulating material.The simulated results reveal that the coating layer can restrain effectively the temperature fluctuations of die cavity and take the temperature slowly rising.However,the ability of reducing the die maximum working temperature by spraying heat insulating material exhibits low,so it is difficult to solve the premature failure of liquid die,which is caused by high temperature of liquid metal.It is a potential way to improve the service life of ferrous metal squeezing die by the forced cooling technology.

引文

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