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    • 11. 发明授权
    • Method for manufacturing high silicon grain-oriented electrical steel sheet with superior core loss property
    • 具有优异的铁损性能的高硅晶粒取向电工钢板的制造方法
    • US07282102B2
    • 2007-10-16
    • US10519521
    • 2003-11-11
    • Kyu-Seung ChoiJong-Soo WooJae-Kwan Kim
    • Kyu-Seung ChoiJong-Soo WooJae-Kwan Kim
    • H01F1/16
    • C23C10/30C21D8/1244C21D8/1255C21D8/1277C23C10/02C23C10/20C23C10/44C23C10/46
    • A method for manufacturing a high silicon grain-oriented electrical steel sheet. In a method for manufacturing a high silicon grain-oriented electrical steel sheet, comprising the steps of: reheating and hot-rolling a steel slab to produce a hot-rolled steel sheet; annealing the hot-rolled sheet and cold rolling the annealed steel sheet so as to adjust a thickness of the steel sheet; decarburization annealing the cold rolled steel sheet; and finish-annealing the decarburization annealed steel sheet for secondary recrystallization, the improved method further comprising the step of: coating a powder coating agent for siliconization on a surface of the decarburization annealed steel sheet in a slurry state, the powder coating agent including 100 part by weight of MgO powder and 0.5-120 part by weight of sintered powder of Fe—Si compound containing 25-70 wt % Si sintered powder, the sintered powder having a grain size of −325 mesh; drying the resultant decarburization annealed steel sheet; and finish annealing the steel sheet under a conventional condition.
    • 一种高硅晶粒取向电工钢板的制造方法。 在制造高硅晶粒取向电工钢板的方法中,包括以下步骤:对钢坯进行再加热和热轧以制造热轧钢板; 对该热轧板进行退火,对退火后的钢板进行冷轧,调整钢板的厚度; 冷轧钢板脱碳退火; 对用于二次再结晶的脱碳退火钢板进行最终退火,该改进方法还包括以下步骤:在浆料状态下在脱碳退火钢板的表面上涂覆硅化粉末涂料,所述粉末涂料包括100份 的MgO粉末和0.5-120重量份含有25-70重量%Si烧结粉末的Fe-Si化合物的烧结粉末,烧结粉末的粒径为-325目; 干燥所得脱碳退火钢板; 并在常规条件下对钢板进行最终退火。