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发明授权
CN104144759B 锻钢辊的制造方法 有权

锻钢辊的制造方法
摘要：
一种锻钢辊的制造方法，其通过ESR法铸造钢锭，该钢锭以质量％计含有C：0.3％以上、Si：0.2％以上、Cr：2.0～13.0％和Mo：0.2％以上、还以10～100质量ppm含有Bi，锻造该钢锭而制造辊。由此，能够将黑斑缺陷遏制在钢锭的中心附近，因此能够在长时间内稳定地使用辊。
摘要（英）：

A method for manufacturing a forged steel roll comprises: casting, by the ESR method, a steel ingot which contains, by mass %, C: 0.3% or more, Si: 0.2% or more, Cr: 2.0-13.0% and Mo: 0.2% or more, and further contains Bi at 10-100 ppm by mass; and forging the steel ingot to manufacture the roll. According to this method, since freckle defects can be sealed near the center of the steel ingot, the roll can be stably used over a long period of time.

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