Sensing and heating method of high-magnetic induction oriented silicon steel
A high magnetic induction orientation and induction heating technology, applied in the field of steel rolling heating, can solve problems such as low performance stability of finished products, low slab temperature control accuracy, abnormal disturbances, etc., to increase investment and production costs and control effects. Significant and guaranteed heating effect
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[0027] An induction heating method for high magnetic induction oriented silicon steel provided in the embodiment of the present invention includes the following steps, and the specific parameters are shown in Table 1:
[0028] Table 1 Specific parameters of each heating step
[0029]
[0030] Step A Put the slab of high magnetic induction grain-oriented silicon steel with the brand Q01G and the specification of 200*1130 into the induction heating furnace for heating, and use the inverter to set the basic voltage, wherein, in this embodiment, the basic voltage is 2300V . Then carry out constant voltage rapid temperature rise, the longest heating time is no more than 25min, the slab temperature after heating is 1320°C, wherein, the temperature of the slab entering the furnace is controlled above 900°C, the oxygen content in the furnace is kept below 1000PPM, and the nitrogen in the furnace is kept 2 The ambient positive pressure difference is 3 Pa. The purpose of this is to ...
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