1.前言 用本溪铁生产球墨铸铁是比较容易成功的,但在四川,由于本溪生铁来源困难,满足不了生产球铁的需求,于是我们在1974年开始利用本省攀钢的钒钛白口生铁试验生铁球墨铸铁。 钒钛白口生铁中,一般磷、硫都不高,但钒、钛两元素在铸铁中常析出碳化物和氮化物的单独相,使铸铁变得硬、脆,塑性和韧性下降,达不到规定标准 1. Introduction The production of ductile iron from Benxi Iron is relatively easy to succeed. However, in Sichuan, due to the difficult source of Benxi pig iron, the demand for ductile iron can not be satisfied. Therefore, in 1974, we started to use vanadium-titanium-titanium pig iron test Cast iron ductile iron. Vanadium titanium dioxide pig iron, the general phosphorus, sulfur are not high, but vanadium, titanium two elements in cast iron often precipitated carbide and nitride phase, the cast iron becomes hard, brittle, ductility and toughness decreased, not up to Prescribed standard