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我厂过去在制造铝合金或铁的金属模及芯盒时,都是采用普通铸造的方法,然后进行切削加工。这种方法加工工时多,周期长,严重影响着复制模及新车型工装的生产。我厂职工在毛主席的革命路线指引下,通过学习上海、常州等兄弟单位的经验,采用了陶瓷型铸造模型及工装,大大缩短了生产准备周期,加快了复制模及新车型的投产。两种方法的对比见下表。
My factory in the past in the manufacture of aluminum or iron metal mold and core box, are used ordinary casting method, and then cutting. This method of working time and more long cycle, a serious impact on the replication model and the production of new models tooling. Under the guidance of Chairman Mao’s revolutionary line, our factory workers adopted the experience of the fraternal units such as Shanghai and Changzhou and adopted the ceramic casting model and tooling, greatly shortening the production preparation cycle and speeding up the production of duplicate models and new models. The comparison of the two methods is shown in the following table.