Rare Earth Metals in the Chinese Iron Casting Industry
With worldwide demand for rare earth metals outpacing production, the Chinese metalcasting industry is seeking new technologies to reduce its reliance on the material.
LI CHUANSHI, CHINA FOUNDRY ASSOCIATION 铸铁行业如何面对加强稀土资源保护
的新形势 中国铸造协会 李传栻
industry is one of the biggest consumers of the materials. Metalcasters mainly use rare earth metals for the produc- tion of ductile cast iron. Smaller amounts of rare earth metals are used in the produc- tion of cast steel and nonferrous alloys. China is rich in rare
R
earth metal resources, with half of the world’s total rare earth metal oxides. Its mining ranks first in the world. In 2010, China produced 97% of the world’s rare earth metals (Table 1). In the early 1950s, China began the exploration, mining and application of rare earth metal resources. Around
are earth metals are widely used in the iron and steel, nonferrous alloys, petroleum, glass and ceramics industries. Among these, the foundry
稀
土金属在钢、铁、有色金属、石油化 工、玻璃、陶瓷等基础产业中的用途广
泛,铸造行业是稀土金属用量最多的行业之一。铸 造行业中,稀土金属主要用于生产球墨铸铁,铸钢和有 色金属铸造方面应用 较少。
我国是稀土资源 最丰富的国家,各类 稀土氧化物的总储 量约占世界总量的一 半。对稀土资源的开 发,我国也居世界首 位。2010年,我国各 类稀土矿的产量占世 界各国总产量的97% 以上。根据美国内 务部和资源勘探部门 2011年发布的《Min- eral Commodity Summaries 2011》 ,2010年世界各国已 探明的稀土氧化物储
China is rich in rare earth metal resources, with half of the world’s total rare earth metal oxides.
我国是稀土资源最丰富的 国家,各类稀土氧化物的 总储量约占世界总量的 一半。
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FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION Fall 2011
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