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1.发名的名称防止电工钢连铸坯表面形成裂纹的方法 2.特许申请范围 (1)由Si2～6％,Mn0.02～0.1％,S0.005～0.05％其余为铁和不可避免的杂质所组成的电工钢连铸坯在连铸时,在铸坯的表面层深度小于5％处,其温度在1050～125℃之间给铸坯的表面层至少一次以上的5～15％的塑性变形或者施加等效的5～15％的塑性变形处理来控制MnS的晶界析出作为特征的一种防止电工钢连铸坯表面形成裂纹的方法。 (2)通过辊子轻轻压下作为塑性变形手段为特征的特许申请范围(1)所记载的方法。
1.Famous name to prevent the surface of the electrical steel slab form cracks 2. Franchise application (1) from Si2 ~ 6%, Mn0.02 ~ 0.1%, S0.005 ~ 0.05% The balance of iron and inevitable Of the impurities of the electrical steel continuous casting billet in the continuous casting, the surface of the slab depth of less than 5% at a temperature between 1050 ~ 125 ℃ to the surface of the slab at least once more than 5 to 15% Or the equivalent of 5 to 15% of the plastic deformation treatment to control MnS grain boundary precipitation as a feature of a method to prevent the surface of the electrical steel slab cracks. (2) The method described in the scope (1) of Patent Application characterized by being a means of plastic deformation is gently depressed by a roller.