介绍了采用卧式离心铸造技术，试制宝钢钢管轧机使用的复合针状球铁张减机辊环的过程。
This paper introduced that horizontal centrifugal casting technology is used to develop the composite acicular spheroidal graphite cast iron collar for tension reducing mill of Baogang pipe mill.
准铸态贝氏体低碳球铁韧塑性的提高，与其组织中形成的大量奥氏体和镶嵌在当中的针状无碳贝氏体密切相关。
The enhancement of toughness and plasticity of quasi-as-cast bainite low carbon ductile iron is contributed by the large amount of austenite and acicular carbon-free bainite inlaying in the austenite.
本文制定了针状贝氏体球铁离心复合轧辊的生产工艺。
The centrifugal compound casting process of needle-like bainite ductile iron roller was establish in this paper.
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