调质件都是在淬火后空冷一段时间,再放入炉中进行高温回火。我厂只有一台箱式电阻炉,因此,需将淬火后的炉温降至高温回火温度后,再装入调质件保温。这样,炉子的一大部分热量散入空气中。后来,我们采取工件从淬火介质中拿出后,根据季节的冷暖来确定在空气中停留的时间,或根据工件出淬火介质时的温度来确定,一般 Conditioning parts are air-cooled after quenching for some time, and then into the furnace for high temperature tempering. I plant only a box-type resistance furnace, therefore, the need to quench the furnace temperature dropped to high temperature tempering temperature, and then into the conditioning parts insulation. In this way, a large part of the heat from the stove is scattered into the air. Later, we take the workpiece out of the quenching medium, according to the season’s warm and cold to determine the time to stay in the air, or quenching medium based on the workpiece temperature to determine, generally