本文对阜新某厂用铅黄铜(HPb59—1)制造气动附件管接头的工艺过程中,产生的大量废品进行了分析研究,并进行了现场实验.经分析表明,产生废品的主要原因是由于过烧和裂纹所造成的.裂纹的类型主要有两种:一种是沿晶开裂,另一种是穿晶开裂.解决的办法是准确控制工件的加热温度与开始模锻温度,且终锻温度不得低于650℃,以及随后进行去应力退火. In this paper, a large number of waste products produced in the process of manufacturing a pneumatic accessory pipe connector made of lead brass (HPb59-1) at a factory in Fuxin were analyzed and studied, and field experiments were carried out. The analysis shows that the main reason for producing waste products is due to Over-burning and cracking caused by the crack. There are two main types of cracks: one is crack along the crystal, the other is transgranular cracking. The solution is to accurately control the workpiece heating temperature and the beginning of forging temperature, and final forging The temperature should not be lower than 650 ° C, and subsequent stress-relief annealing.