作者研究了不同冷却效果淬火介质对管材冷轧机的孔型可淬性、淬透性和剩余应力的影响。文章介绍了喷油冷却、锰酸钾6%溶液、喷水冷却和水—气混合物冷却的特点,并对它们的冷却效果进行了比较。随着孔型重量的增加,较高温度下喷水冷却和水—气混合物冷却效果最好,由于效应力松驰,导致剩余应力降 The authors studied the effect of quenching media with different cooling effects on the hole hardenability, hardenability and residual stress of tube cold rolling mills. The article introduces the characteristics of fuel injection cooling, 6% potassium manganate solution, water jet cooling and water-air mixture cooling, and compares their cooling effects. With the increase of the hole weight, the cooling effect of spray water and water-air mixture at the higher temperature is the best. Due to the relaxation of the effective stress, the residual stress drop