铸造2012，Vol.61Issue(8)：862-864,3.
低合金高强韧稀土铸钢的研究
Study on Low Alloy Rare-Earth Cast Steel with High Strength and Toughness
董立 1王晓燕 1高军 1苏有 1梁琦 1刘雁辉 1李世铭2
作者信息
- 1. 内蒙古北方重工业集团有限公司,内蒙古包头014030
- 2. 晋西集团包头分公司,内蒙古包头014030
- 折叠
摘要
Abstract
Due to the limit of composition design and metallurgy technology, the yield strength of the national current engineering structure carbon steel and low alloy steel (including rare-earth steel) fail to exceed 637 MPa with poor comprehensive properties. To meet the special requirement of the product, the low alloy rare-earth cast steel with high strength and toughness was developed. Under the following process control measures: optimum design of elements, the rare-earth Si-Ca line to feed outside of furnace and refining technology of ladle bottom blowing Ar, the purity of the steel was effectively improved, well metallurgy effect was obtained, and the mechanical properties were up to the requirements of high strength and toughness of 115-95 and 135-125 grades. The cast steel with good comprehensive properties such as casting, welding, low-temperature toughness, and good adaptability, has wide application prospect.关键词
低合金/高强韧/成分优化/稀土铸钢/精炼Key words
low alloy/ high strength and toughness/ composition optimization/ rare-earth cast steel/ refining分类
矿业与冶金引用本文复制引用
董立,王晓燕,高军,苏有,梁琦,刘雁辉,李世铭..低合金高强韧稀土铸钢的研究[J].铸造,2012,61(8):862-864,3.
