会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明公开
    • 방향성 전자기 강판의 제조 방법
    • 面向电工钢板的生产方法
    • KR1020120097639A
    • 2012-09-05
    • KR1020110016971
    • 2011-02-25
    • 신닛테츠스미킨 카부시키카이샤
    • 우시가미요시유끼무라까미겐이찌
    • C21D8/12C22C38/02
    • C21D8/0257C21D1/26C21D6/008C22C38/02
    • PURPOSE: A method for manufacturing a directional electromagnetic steel sheet is provided to obtain uniform and large grain diameter of primary crystal by lowering the content of N in slab and heating the slab over the temperature at which solution-treating precipitate is completely melted. CONSTITUTION: A method for manufacturing a directional electromagnetic steel sheet comprises the steps of: heating slab, which comprises Si of 2.0-7.0wt.%, C of 0.04-0.07wt.%, acid-soluble Al of 0.015-0.035wt.%, Mn of 0-0.20wt.%, N of 0-0.003wt.%, and S of 0-0.003wt.%, hot rolling the slab to obtain a first rolled plate, cold rolling the first rolled plate to obtain a second rolled plate, and implementing decarbonization and nitration annealing of the second rolled plate, wherein the concentration of ammonia in the atmosphere of the front part of a furnace is lower than that in the rear part of the furnace. [Reference numerals] (AA) Slab; (BB) Heating; (CC) Hot rolling; (DD) Cold rolling; (EE) Hot-rolled plate annealing; (FF) Decarburization and nitration annealing; (GG) Finish annealing; (HH) Final product
    • 目的:提供一种制造定向电磁钢板的方法,通过降低板坯中的N含量并在溶液处理沉淀物完全熔化的温度下对板坯进行加热来获得均匀的大晶粒直径。 构成:一种制造定向电磁钢板的方法包括以下步骤:加热板坯,其中Si为2.0-7.0重量%,C为0.04-0.07重量%,酸溶性Al为0.015-0.035重量% ,0-0.20重量%的Mn,0-0.003重量%的N,0-0.003重量%的S,热轧板坯以获得第一轧制板,冷轧第一轧制板以获得第二轧制板 轧制板,并且对第二轧制板进行脱碳和硝化退火,其中炉前部的气氛中的氨浓度低于炉后部的浓度。 (附图标记)(AA)板; (BB)加热; (CC)热轧; (DD)冷轧; (EE)热轧板退火; (FF)脱碳和硝化退火; (GG)完成退火; (HH)最终产品