Continuous casting method of steel

专利名称：Continuous casting method of steel发明人：伊澤 研一郎,村上 敏彦申请号：JP2019076308申请日：20190412公开号：JP2020171954A公开日：20201022

专利附图：

摘要：Problem to be solved: to provide a continuous casting method of steel withoutrequiring excessive overpressure without using a convex roll as a pressure roll during thecontinuous casting, particularly in the high solid phase ratio region under pressure.Solution: a mold 1 having a casting cross-section 4 having a corner drop portion 2 is used,

and a cast piece having a chamfered shape 7 is formed in a corner portion 14 of a caststrip section 8 of a cast piece 31, and a pressure drop is applied during continuouscasting, and the same pressure drop is compared with a case in which a casting piecehaving no chamfered portion is rolled down, and compared with a case in which a castingpiece having no chamfered portion is rolled down. The downward force can be

reduced.Further, if the same pressure is applied, the pressure can be reduced by a largerpressure.It is preferable that the casting piece is pressed down by a roll in the region ofthe solid phase ratio of the casting strip thickness of 0.8 or more.Diagram

申请人：日本製鉄株式会社

地址：東京都千代田区丸の内二丁目６番１号

国籍：JP

代理人：特許業務法人樹之下知的財産事務所

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