发明名称
摘要 PURPOSE:To reduce the crop loss of the steel plate, and to improve the yield of the product, by giving a reduction to the slab in the width direction in final several passes, on purpose to swell the both end portions of the rectangular section of the slab so as to be a specified thickness thicker than the middle portion, and then, by rolling this slab into the steel plate.
申请公布号 JPS5546762(B2) 申请公布日期 1980.11.26
申请号 JP19770034934 申请日期 1977.03.28
申请人 发明人
分类号 B22D11/128;B21B1/02;B21B1/22;B21B1/38;B22D11/04;B22D11/043;B22D11/12 主分类号 B22D11/128
代理机构 代理人
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