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锆合金主要以硅锆铁形态在钢铁铸造行业中应用,国际上近年来有很大发展。从50年代锆引入,作为炼钢细化晶粒、增强抗硫磷、增强深冲性。在前苏联、欧洲和美国普遍得到认可。但由于硅锆铁冶炼难度较大,回收率较低(一般仅在45％～65％),因而价格使应用面不大。 近十年来,由于对钢铁的质量要求不断提高、引入硅锆作为炼钢脱氧变质剂在国外普遍应用。特别是在铸铁中应用也逐步推开。在球铁中添加少量锆合金、可使用球径减少、球量增大、圆整度提高。已被生产实践
Zirconium alloy is mainly used in the iron and steel casting industry in the form of Si, Zr and Fe. In the world, there has been a great development in recent years. Introduced from the 1950s zirconium, refined grains as steelmaking, enhanced parathion, enhance deep drawability. In the former Soviet Union, Europe and the United States generally recognized. However, the silicon zirconium iron smelting more difficult, the recovery rate is low (generally only 45% to 65%), so the price so that the application is not large. Over the past decade, due to the continuous improvement of the quality requirements of the steel, the introduction of silicon zirconium as a deoxidizing steelmaking agent is widely used in foreign countries. Especially in the cast iron applications are also gradually opened. In the ductile iron to add a small amount of zirconium alloy, you can use to reduce the ball diameter, the ball increases, the roundness increased. Has been production practice