通过建立支承辊的温度场数学模型,设计一种80~150 Hz频率段的变频感应加热装置。需要的总功率为1297 k W,设备设计功率为1500 k W。使用加热装置对支承辊进行感应加热,升温速度为平均100℃/h。当稳定加热层(由辊身表面向内200 mm区域)加热到890~920℃,辊芯温度≤650℃,然后喷淋淬火。通过实际测量,设计温度与实测温度的偏差值≤2.50%。 By establishing the mathematical model of the temperature field of the support roller, an inverter induction heating device with a frequency of 80-150 Hz was designed. The total power required is 1297kW and the device design power is 1500kW. The support rollers were induction-heated using a heating device at an average temperature of 100 ° C / h. When the stable heating layer (200mm inward from the barrel surface area) is heated to 890 ~ ​​920 ℃, core temperature ≤ 650 ℃, then spray quenching. Through the actual measurement, the deviation between the designed temperature and the measured temperature is less than 2.50%.