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一、前言武钢一米七冷连轧机和单、双平整机所使用的西德斯坦茵霍夫厂制86 Cr Mo V_7钢冷轧工作辊的淬硬层一般只有30毫米左右,当使用30毫米后,由于辊身表面的硬度低于HS—D85,须送双频淬火机组进行重新淬火和回火等工艺,使其重新获得新辊所具有的各种性能。重淬后的冷轧工作辊,其辊身表面的硬度值取决于回火工艺制度,为了摸清回火工艺与辊身硬度对应关系的规律性,我们利用比利时OSB公司提供的50/25OH_2双频感应淬火机和强制循环台车式低温炉、冷处理
Foreword Wuhan Iron and Steel one-meter cold-rolling mills and single, double flat machine used by the West Germany Yin Hoff factory 86 Cr Mo V_7 steel cold-rolled work roll hardened layer is generally only about 30 mm, when using 30 After millimeters, due to the hardness of the roller body surface lower than the HS-D85, to be sent to dual-frequency quenching unit for re-quenching and tempering process, to regain the new roll has a variety of properties. After the heavy quenching work roll, the hardness of the roll body surface depends on the tempering process system. In order to find out the regularity of tempering process and roll hardness, we use the Belgian OSB company to provide 50 / 25OH_2 double Frequency induction quenching machine and forced circulation trolley type low temperature furnace, cold treatment