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采用冷挤压代替切削加工生产喷油泵柱塞套,使金属的利用率提高到70％。苏联汽车工业工艺研究所开发了25X5M钢制喷油泵柱塞套经二次循环热处理(1070K加热→910～950K等温),提供了冷挤压加工的最佳组织条件。探讨了冷挤压加工工艺。
Cold extrusion instead of cutting production injection pump plunger sleeve, the utilization rate of metal increased to 70%. The Soviet Union Institute of Automotive Technology developed 25X5M steel injection pump plunger sleeve by the second cycle of heat treatment (1070K heating → 910 ~ 950K isothermal), providing the best cold extrusion processing conditions. The cold extrusion process was discussed.