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经过试生产,确定了生产42CrMo铸件的熔模铸造工艺参数与热处理工艺参数,严格执行工艺纪律,成功地生产了排气门摇臂。
After trial production, we determined the investment casting process parameters and heat treatment process parameters for the production of 42CrMo castings, and strictly enforced the process discipline, successfully producing the exhaust valve rocker arm.