在“鼓足干劲,力争上游,多快好省地建设社会主义”总路线的指引下,遵照毛主席关于“农业的根本出路在于机械化”的教导,一九七三年底,针对我厂后方力量薄弱的特点,我们采用陶瓷型精密铸造这一项新工艺,试制成功了一批稀土镁球墨铸铁锻模,其中典型的是曲轴锻模(如图1),外型尺寸为:850×450×310;铸件净重为800公斤。 Guided by Chairman Mao’s principle that “the fundamental road to agriculture lies in mechanization”, guided by Chairman Mao’s principle of “mechanization,” under the guidance of the general principle of “building a strong economy, striving for a better upper reaches, and building a socialist society that is faster, more economical and more economical”, in the end of 1973, Characteristics, we use ceramic casting this a new technology, trial success of a group of rare earth magnesium cast iron ductile iron, which is a typical crankshaft forging die (Figure 1), Dimensions: 850 × 450 × 310; Casting net weight of 800 kg.