按照原来的工艺,渗碳钢锻件在锻造完毕后,先置于空气中冷却,再加热迸行正火外理,然后喷丸清除氧化皮,因此生产周期很长。经试验,在锻造完毕后,即置锻件于硝石槽中等温(等温温度由技术条件所要求的硬度来决定,然后放在然水中冷却,因盐遇水发生小爆炸,从而把氧化皮去净;同时因水温高,锻件一出水 According to the original process, after the forging of the carburized steel forgings is completed, the steel is firstly cooled in the air and then heated for normalizing, then the shot blasting removes the scale, so the production cycle is very long. After the test, after forging is finished, the forging isothermally immersed in the saltpetre tank (the isothermal temperature is determined by the hardness required by the technical conditions, and then it is cooled in the natural water and the salt is removed by the salt At the same time due to high water temperature, forgings a water