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目前我国生产的冷轧工作辊绝大多数采用工频加热连续表面淬火工艺进行热处理,其优点是操作简便,处理周期短,但存在着辊面硬度偏低、硬度均匀性差、有效淬硬层薄及过渡层不够缓和等问题。因此使用寿命低,满足不了我国轧钢工业飞跃发展的要求。为此冶金部和一机卫组织了提高冷轧工作辊质量的联合攻关组,针对(?)500×1700毫米冷轧工作辊的材料冶炼、予先热处理、双频淬火工艺等进行研
At present, most of the cold-rolled work rolls produced in our country are heat-treated by continuous frequency heating and continuous surface quenching. The advantages of the cold rolling work rolls are simple and easy operation and short treatment cycle. However, there are some problems such as low hardness, poor hardness uniformity, And the transition layer is not enough to ease and other issues. Therefore, the low life expectancy, can not meet the rapid development of China’s rolling industry requirements. To this end the Ministry of Metallurgical and a machine-guarded organization to improve the quality of cold-rolled work roll joint research group, for (?) 500 × 1700 mm cold-rolled work roll material smelting, pre-heat treatment, dual-frequency quenching process for research