| It is one of the most important research to study effects of inoculation which add inoculant, very small amount of metal or alloy, into the cast iron melts just before pouring in the mold. Many properities of spheroidal graphite cast iron have been improved by the inoculation. The relation between inoculation and components of melts, mass effect of specimen and spheroidizer used, have been investigated and the important results obtained from the study are summerized as follows. (1) The biggest effect of the inoculation has been obtained in the case of low carbon equivalent, especially low content of silicon in the cast iron melt. (2) The inoculation effects for high carbon equivalent, specially high silicon spheroidal graphite cast iron melt are very small. |
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