论文部分内容阅读
一、引言连杆辊锻余热淬火(以下简称辊热淬火或辊淬)是从生产发展中提出来研究的新课题。博山锻压厂采用成型辊锻的方法生产95型连杆,为使热处理与辊锻自动线配套以满足专业化生产的需要,农机部和一机部组织有关单位[注]开展了辊热淬火工艺试验。对于锤锻连杆的余热淬火工艺,国内外在生产上已经应用了多年,但是对于成型辊锻连杆的余热淬火工艺却缺乏经验。由于辊锻和锤锻是两种截然不同的锻造方法,辊锻的始锻温度高,形变量大,形变道次多和形变过程时间长,辊锻连杆在淬火前的状态要比锤锻连杆复杂(表1),特别是前
I. Introduction Roller forging residual heat quenching (hereinafter referred to as roll hot quenching or roller quenching) is put forward from the development of production to study a new topic. Boshan Forging Plant adopts the method of forming roll forging to produce 95 connecting rod. In order to make the heat treatment and roll forging automatic line match to meet the needs of specialized production, the Agricultural Machinery Department and a machine department organize the relevant units [Note] to carry out the roll-hot-quenching process test. For hammer quenching residual heat quenching process, both at home and abroad have been used in production for many years, but for forming roll forging rod afterheat quenching process but lack of experience. Because roll forging and forging are two distinct forging methods, the initial forging temperature of roll forging is high, the amount of deformation is large, the number of deformation passes and deformation time are long, and the state of roll forging link before quenching is better than that of forging Connecting rod complex (Table 1), especially before