摘要:
通过对高速钢的类型、生产工艺和发展现状等进行概述,重点针对高速钢中的碳化物及其影响,结合国内外研究现状,阐述了以熔炼工艺为主的高速钢生产流程中的电渣重熔过程、热加工变形过程、热处理过程、深冷处理及变质处理等对高速钢碳化物的影响。并通过总结熔炼高速钢中碳化物控制的关键因素,提出适当降低电渣重熔熔速,严格控制锻造和轧制的加热温度和保温时间,优化热处理加热温度范围和冷却方式,并在传统工艺上增加深冷处理和添加变质剂,以有效控制钢中大尺寸碳化物,进而为生产高质量高性能的高速钢奠定基础。
关键词:
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高速钢 /
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碳化物 /
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电渣重熔 /
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热加工 /
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热处理 /
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变质处理
Abstract:
The types,production process and development status of high speed steel are summarized.The effects of ESR process,hot processing deformation process,heat treatment process,cryogenic treatment and modification treatment on the carbides in high speed steel production,which are mainly based on smelting technology,are reviewed based on the research status at home and abroad.By summing up the key factors of carbide control in melting high speed steel,it is proposed to reduce the melting speed of ESR appropriately,strictly control the heating temperature and holding time of forging and rolling,optimize the heating temperature range and cooling mode of heat treatment,and add the deep cooling process and modifier in the traditional process to effectively control the large-scale carbide in steel,which will lay a foundation for the production of high-quality and high-performance high-speed steel.
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