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Infrared heating method, infrared heating and forming method of steel sheet and automobile component obtained thereby, and infrared heating furnace
Infrared heating method, infrared heating and forming method of steel sheet and automobile component obtained thereby, and infrared heating furnace
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机译:红外加热方法,由此获得的钢板和汽车部件的红外加热成型方法以及红外加热炉
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摘要
An infrared heating method comprises: wholly infrared heating a steel sheet uniformly up to a temperature which is A3 point or above; and temperature distribution controlling, wherein, after the wholly infrared heating, partial lowering of a light intensity of infrared rays irradiated toward the steel sheet is performed to provide a first region having a temperature of A3 point or above and a second region having a temperature less than A1 point in the steel sheet.
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