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我公司生产的带式输送机上销轴数量较多。在淬火过程中竟有70%淬裂。通过分析销轴淬裂的原因,找到了有效的预防和解决措施,并得到实践验证。1淬裂原因分析销轴用钢为45钢,供货状态为热轧。几何尺寸是直径10mm长度180mm的圆棒。在箱式电阻炉里加热到840~860℃,保温约20~30min水
I produced a large number of belt conveyor pin shaft. In the quenching process as much as 70% quench cracking. By analyzing the reason of pin quenching and cracking, effective measures for prevention and solution were found and verified by practice. Analysis of a quench cracking Pin shaft steel 45 steel, the supply status is hot-rolled. The geometric dimensions are round rods with a diameter of 10 mm and a length of 180 mm. In the box resistance furnace heating to 840 ~ 860 ℃, insulation about 20 ~ 30min water