一、球墨铸铁是怎么回事?问:听说你们公社机修厂为了普及大寨县,实现农业机械化,搞了球墨铸铁。请您介绍一下球墨铸铁是什么东西,搞它干什么?答:球墨铸铁简称“球铁”。搞球铁不是做铁球子。铸铁里除了铁以外还含有2%以上碳(煤、焦炭、木炭的主要成分是碳)。碳成球状分布在里面的铸铁就叫做球墨铸铁。 First, the ductile iron is how the matter? Q: I heard that you commune machine repair plant in order to popularize Dazhai County, to achieve mechanization of agriculture, engage in ductile iron. Please tell us what is ductile iron, engage in what? A: ductile iron referred to as “ductile iron.” Doing iron ball is not iron ball. Cast iron in addition to iron also contains more than 2% of carbon (coal, coke, charcoal is the main component of carbon). Cast iron into spherical carbon balls called ductile iron.