论文部分内容阅读
利用丰富的地方资源钒钛生铁熔制高铬铸铁,加之钒钛复合变质处理,显著提高高铬铸铁的韧性和抗磨性,这已为多年的研究和生产所证明.但是,钒铁价格昂贵,如果代之以价格便宜,供应方便的变质剂,且使变质效果不低于原有水平,必将产生显著的经济效益.为此进行了多种变质剂变质效果的对比试验[1],发现稀土变质处理对改善钒钛高铬铸铁组织形态的效果较显著,进而系统地进行了稀土变质处理的实验.
The use of rich local resources of vanadium-titanium pig iron cast high-chromium cast iron, combined with vanadium and titanium compound metamorphic treatment, significantly improve the high chromium cast iron toughness and abrasion resistance, which has many years of research and production proved, however, the price of expensive ferrovanadium , If replaced by cheap, convenient supply of modifiers, and the metamorphic effect of not less than the original level, will have significant economic benefits.Therefore, a variety of modifiers metamorphic effect of the comparative test [1], It is found that the effect of rare earth modification on improving the microstructure of vanadium-titanium high-chromium cast iron is significant, and then the experiment of modifying rare earth elements is systematically carried out.