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现有文献资料上对410不锈钢锻后退火的工艺提法不同,为了确定适合的退火工艺,根据现有文献资料,选取不同参数进行试验,通过对硬度和金相组织的对比,确定了780℃退火、保温2.0~3.0 h、出炉后自然空冷的不完全退火工艺,并严格执行410不锈钢锻造工艺,控制终锻温度在900℃以上。该工艺在生产中进行了实践,结果证明,退火工艺达到了保证180~220 HBW的硬度范围、提高切削性能的预期。此不完全退火工艺与完全退火工艺相比,锻件的硬度合格率、机械加工性能和生产效率都得以提高,产品最终力学性能也得到了相应的提高,从而说明了该退火工艺具有较强的实用性和良好的经济效益。
In order to determine the suitable annealing process, based on the existing literature, different parameters were selected for testing. The hardness and the microstructure were compared to determine the annealing temperature of 780 ℃ Annealing, insulation 2.0 ~ 3.0 h, natural air cooling after the furnace is not completely annealed, and the strict implementation of 410 stainless steel forging process, control the final forging temperature above 900 ℃. The process has been carried out in the production practice, the results show that the annealing process to achieve a guarantee 180 ~ 220 HBW hardness range, improve the cutting performance expectations. This incomplete annealing process and the complete annealing process compared to the forging hardness pass rate, machinability and production efficiency are improved, the final mechanical properties of the product has also been a corresponding increase, which shows that the annealing process has a strong practical Sex and good economic benefits.