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从辊坯冶炼方式、热处理工艺、组织控制、性能保证方面优化了轧辊工艺,研制出适用于轧制不锈钢镜面板的森吉米尔工作辊。研究了不同的冶炼方式对辊坯质量的影响,确定了合理的辊坯生产工艺。根据不同的淬火温度、回火温度对W6Mo5Cr4V2钢硬度、晶粒度及碳化物含量的影响规律,选定了最佳热处理工艺参数。针对产品细长比大的特点,在制造中通过多次分段预热、垂直吊放、多次校直、加强盐浴炉脱氧、粗磨后消除应力的方法合理解决了硬度不均匀、变形等技术关键。研制出的产品能完全满足用户对高品质不锈钢镜面板的要求。
From the roller billet smelting method, heat treatment process, organization control, performance assurance to optimize the roll process, developed for the stainless steel mirror plate for the Sendzimir work roll. The effects of different smelting methods on roll blank quality were studied, and a reasonable roll blank production process was determined. According to different quenching temperature, tempering temperature of W6Mo5Cr4V2 steel hardness, grain size and carbide content of the law, selected the best heat treatment process parameters. In view of the characteristics of product slenderness and bigness, the methods of preheating, hanging vertically, straightening several times, strengthening deoxidation in salt bath furnace and eliminating stress after coarse grinding reasonably solve the problems of uneven hardness and deformation And other technical key. Developed products to fully meet the user requirements for high-quality stainless steel mirror panels.