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我厂广大革命职工在毛主席革命路线指引下,在兄弟厂矿的协助下,1971年用熔模铸造方法生产了一千余只模数12伞齿轮,经合肥钢厂和马鞍山钢铁公司实际使用,符合要求,经一年多,仍在正常运转。去年又生产了模数14伞齿轮。大模数伞齿轮熔模铸造,由于齿形不加工,仅端面、内孔留一定加工裕量,因此节省了大量机械加工工作量和原材料,具有生产
Under the guidance of Chairman Mao’s revolutionary line and with the help of Brother Factory and Mine, a large number of revolutionary workers in our factory produced more than a thousand molds and 12 bevel gears by investment casting in 1971. After being used by Hefei Steel Mills and Maanshan Steel Company, Meet the requirements, after more than a year, still in normal operation. Last year, it produced 14 modulus bevel gears. Large modulus bevel gear investment casting, because the tooth shape is not processing, only the face, bore leaving a certain processing margin, thus saving a lot of machining work and raw materials, with production