一、轧辊的要求和试制二重式热轧薄板机的轧辊是用铸铁制成,它是在压力大和温度高的条件下工作。根据计算,热轧时的压力达1100吨左右,辊身温度达500℃。另外,在轧制中如轧辊使用不当,辊温会突然升高或下降,使轧辊产生过大的内应力。所以轧辊必须有足够的强度,否 First, the roller requirements and trial production Double-type hot-rolled sheet machine roll is made of cast iron, it is under pressure and temperature conditions. According to the calculation, the pressure during hot rolling reaches 1,100 tons and the temperature of the barrel reaches 500 ° C. In addition, such as roll in the use of improper roll temperature will suddenly rise or fall, so that the roll has an excessive internal stress. So the roll must have sufficient strength, no