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由航空工业部科技局、冶金工业部军工办主持召开的涡喷型发动机用 GH220合金鉴定会于1983年9月5日至8日在浙江省肖山县召开。各研制单位向大会汇报了三年多来全面完成合金生产工艺、化学成分控制、热处理制度、合金组织以及叶片模锻、弯晶热处理、冷加工和真空蒸镀渗铝等工艺方面研制任务的简要情况。
GH220 alloy identification for turbojet engines, chaired by the Science and Technology Administration of the Ministry of Aeronautical Industry and the Military Office of the Ministry of Metallurgical Industry, was held in Xiao Shan County, Zhejiang Province from September 5 to August 8, 1983. The development units reported to the General Assembly over the past three years to fully complete the alloy production process, chemical composition control, heat treatment system, alloy organization and leaf die forging, bending crystal heat treatment, cold processing and vacuum deposition aluminizing process briefing .