我厂铸造车间主要生产印染机械和黄麻机械的铸件,生产纲领属于多品种小批量生产范畴。对其中的中、大件,我们采用了抛砂机造型。典型的中、大型铸件如图1和图2所示。自1977年抛砂机在我厂使用以来的实践表明,抛 I plant casting workshop mainly produces printing and dyeing machinery and jute machinery casting, production program is more varieties of small batch production areas. Among them, the large, we use a sand throwing machine modeling. Typical medium and large castings are shown in Figure 1 and Figure 2. Since 1977, sand throwing machine used in our plant since the practice shows that throwing