机械传动丝杠用ZG30CrMnSiMoTi钢淬火工艺研究  

Study of Quenching Process for ZG30CrMnSiMoTi Steel for Mechanical Transmission Screw

作　　者：梁矗军[1,2] LIANG Chujun(Institute of Mechanical and Electrical Teehnology, Wuxi Voeational Institute of Commerce, Wuxi 214153, China The Engineering Technology Development Center on Wireless Sensor System of Jiangsu Province, Wuxi 214063, China)

机构地区：[1]无锡商业职业技术学院机电技术学院,江苏无锡214153 [2]江苏省无线传感应用系统工程技术开发中心,江苏无锡214063

出　　处：《铸造技术》2017年第4期840-842,共3页Foundry Technology

摘　　要：研究了机械传动丝杠用ZG30CrMnSiMoTi钢的淬火工艺。结果表明,当感应加热温度稍高于A_(c3)时可得到细小的马氏体组织。随着加热速率增加,ZG30CrMnSiMoTi钢奥氏体化完成所需时间越来越短,该钢种的奥氏体化起始与完成温度与加热速率成正比。传动部件在单感应圈感应加热时厚度方向上存在着温度梯度,这在随后的冷却过程中将会导致淬硬层硬度不均匀分布和应力开裂;双感应圈感应加热后完全奥氏体化厚度大,且沟道端部和底部之间温度接近,在端部淬火时残余应力很小、无裂纹产生。The quenching process for the ZG30CrMnSiMoTi steel used for mechanical transmission screw was studied. The results show that when the heating temperature is slightly over Ac3, the steel can obtain fine martensite. With the increase of heating rate, the complete austenitizing time of ZG30CrMnSiMoTi steel is shorting, the austenite start and finish temperature of the steel are proportional to heating rate. There is a temperature gradient of the transmission components in the thickness direction in single coil induction heating, which may lead to uneven hardness distribution and stress cracking in subsequent cooling process. There is a large thickness of austenite in double coil induction heating, and the temperature at the top of the channel is close to that of the bottom, and the residual stress is small and no crack produces when the end part is quenched.

关 键 词：淬火工艺 机械传动丝杠 ZG30Cr MN SI MO Ti钢 

分 类 号：TG156.3[金属学及工艺—热处理]