海绵铁珠光体球铁铸件多年前就能直接浇注出来。为了缩短生产周期,节省能量和省去消除应力的工序,也希望能直接浇注出铁素体球铁。对此,虽然采用含Mn及其它促进珠光体化元素和稳定珠光体的元素少些铸铁,就可以得到铁素体球铁,但是在欧洲也在研 Sponge iron pearlite ductile iron castings can be poured directly out many years ago. In order to shorten the production cycle, save energy and eliminate the need to eliminate the stress of the process, but also hope to cast ferrite ductile iron. In this regard, ferritic ductile iron can be obtained, although less iron, containing Mn and other elements that promote pearlite and stabilized pearlite, is also being studied in Europe