论文部分内容阅读
无缝钢管有很大一部分需要进行热处理.利用管材轧制后的余热进行直接淬火可大大节省能源.直接淬火由于淬透性高,可改进钢管的机械性能.淬火开始温度应在A_3相变点以上,一般为750～800℃,冷却速度40～50℃/S.除了管材在淬火区有足够高的温度之外,还研制了在线淬火最适宜的冷却方法和冷却设备.利用理论模型评价了钢管在轧制过程中的温
A large part of the seamless steel pipe need to heat treatment. The use of pipe quenching after direct quenching can greatly save energy. Direct quenching due to high hardenability, can improve the mechanical properties of steel. Quenching start temperature should A_3 phase transition point , Usually 750 ~ 800 ℃, the cooling rate of 40 ~ 50 ℃ / S. In addition to the pipe in the quenching zone has a sufficiently high temperature, but also developed the most suitable on-line quenching cooling method and cooling equipment using the theoretical model to evaluate the Pipe in the rolling process of the temperature