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山东省机械工业厅受一机部委托,于1980年12月9日—11日在济南召开了“用冲天炉熔制稀土蠕墨铸铁”鉴定会。参加会议的有领导机关、大专院校、科研单位、工厂等35个单位,共42名代表。会议对稀土蠕墨铸铁的熔炼工艺、稀土锌镁蠕化剂熔炼工艺、稀土蠕墨铸铁的机械加工性能、耐磨性能、铸造性能、铸件的钢性等方面进行了鉴定。并参观了济南材料试验机厂的现场操作表演。
Shandong Machinery Industry Office commissioned by a machine department, in December 1980, December 9, held in Jinan, Jinan, “with cupola melting rare earth vermicular graphite cast iron” appraisal meeting. A total of 42 delegates attended the meeting, including 35 leading agencies, universities, research institutes and factories. The meeting identified the rare earth vermicular graphite cast iron smelting process, rare earth zinc-magnesium vermiculite melting process, rare earth vermicular graphite cast iron machining performance, wear resistance, casting performance, cast steel and so on. And visited the Jinan material testing machine factory site performance.