The Technology of Mould Steel for Online Pre-hardening

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• 作者：Dongmei Zhu ; Guoyong Liu ; Mouwei Li ; Shaojun Zhang ; Xinxiao Bian ; Wanglin ; Wang Quan ; Jinguo Dai ; Xubin ; Chaocheng Wei ; Lijuan Cai ; Zuofeng Liu ; Shichuang Gong ; Zhengang An
• 关键词：mould steel ; pre-hardening ; the variable frequency and variable amplitude pulse temperature control ; quenching ; cooling rate change path
• 刊名：Physics Procedia
• 出版年：2013
• 年：2013
• 卷：50
• 期：Complete
• 页码：2-7
• 全文大小：1087 K

文摘

This article describes a production method of mould steel pre-hardening, and focus on the advantage of this method, The technical core of method is the variable frequency and variable amplitude pulse uniform high-precision temperature control, which achieved by using strong-medium-weak water cooling, gas-water cooling and gas mist cooling composite cooling control technology. Optimizing the cooling rate path is a good method of optimizing quenched organization and structure.