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为了提高我厂灰铸铁件的质量,选择适于我厂应用的孕育剂,我们对几种高效铸铁孕育剂进行了生产试验,得到了比较满意的结果,所选定的几种高效铸铁孕育剂已稳定地应用于我厂日常生产中。一、工艺试验1.不同孕育剂及不同加入量的效果试验我们共试用了五种孕育剂,它们的化学成分见表1。以我厂缸体为试验件,采用60kg中频感应电炉熔化铁水,铁水的化学成分为:C 3.2～3.4％、
In order to improve the quality of gray iron castings in our factory and choose the suitable inoculant for our factory application, we conducted several production tests on several high-efficient cast iron inoculants and got satisfactory results. Several high-efficiency cast iron inoculants Has been steadily used in our daily production plant. First, the technical test 1. Different inoculant and different additions of the effect of the test We have tried a total of five kinds of inoculants, their chemical composition in Table 1. Taking the cylinder block of our factory as the test piece, 60kg medium frequency induction electric furnace was used to melt the molten iron. The chemical composition of the molten iron was: C 3.2 ~ 3.4%