我厂试制铜铅合金曾用过三种方法,第一种是铁皮内(?)浸铸法,第二种是砂心浸铸法,第三种是离心浇铸法。前两种方法有许多资料已有介绍,因此只总结一下我厂的特点及主要经验,第三种方法是吸取了苏联先进经验,优点很多,所以较详细的加以介绍。 I tried copper-lead alloy factory has used three methods, the first is the iron (?) Dip casting method, the second is sand heart casting method, the third is the centrifugal casting method. Many of the first two methods have been introduced. Therefore, we only summarize the characteristics and main experiences of our factory. The third method draws on the advanced experience of the Soviet Union and has many advantages. Therefore, it is introduced in more detail.