Method for producing grain-oriented electrical steel sheet
    92.
    发明专利
    Method for producing grain-oriented electrical steel sheet 有权
    生产面向电工钢板的方法

    公开(公告)号:JP2013057118A

    公开(公告)日:2013-03-28

    申请号:JP2012161136

    申请日:2012-07-20

    Abstract: PROBLEM TO BE SOLVED: To reduce shape defects arising in finishing annealing, and to increase product yield.SOLUTION: There is provided a method for producing a grain-oriented electrical steel sheet by subjecting a post-cold-rolling coil for a grain-oriented electrical steel sheet to primary recrystallization annealing, applying an annealing separation agent, and performing finishing annealing, wherein in the heating step of the primary recrystallization annealing, rapid heating is performed between 500-700°C at least at 80°C/sec, and in the heating step of finishing annealing, a holding process is performed that holds for 2-100 hours between 700-1,000°C. Preferably, finishing annealing is additionally performed after laying down an insulating material onto the upper surface of a coil pedestal, which is in the annealing furnace used in finishing annealing, in a concentric manner from the outer peripheral side and at least at 20% of the radius of the coil pedestal.

    Abstract translation: 要解决的问题:减少退火中出现的形状缺陷,提高产品产量。 解决方案:提供了一种通过对晶粒取向电工钢板的后冷轧线圈进行一次再结晶退火,涂布退火分离剂和进行精加工来制造晶粒取向电工钢板的方法 退火,其中在一次再结晶退火的加热步骤中,在500-700℃至少80℃/秒之间进行快速加热,并且在精加工退火的加热步骤中,进行保持2 700-1,000℃之间-100小时。 优选地,在从外周侧以同心的方式将绝缘材料放置在线圈基座的上表面上,并且至少在20% 线圈座的半径。 版权所有(C)2013,JPO&INPIT

    Method for manufacturing grain-oriented electromagnetic steel sheet
    95.
    发明专利
    Method for manufacturing grain-oriented electromagnetic steel sheet 有权
    制造面向导电电磁钢板的方法

    公开(公告)号:JP2013036121A

    公开(公告)日:2013-02-21

    申请号:JP2012203630

    申请日:2012-09-14

    Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a grain-oriented electromagnetic steel sheet with low iron loss.SOLUTION: The method includes a groove forming step of forming grooves on a silicon steel sheet in its width direction by irradiating a plurality of times the sheet with a laser beam while placing predetermined intervals in its passing direction during cold rolling and winding. When P(W) represents an average intensity of the laser beam; Dl (mm) represents a condensed beam diameter in the passing direction of the condensed beam spot of the laser beam; Dc (mm) represents a condensed beam diameter in the width direction thereof; Vc (mm/s) represents a scanning speed in the width direction of the laser beam; following formula 1 represents an irradiation energy density Up of the laser beam; and following formula 2 represents an instantaneous power density Ip of the laser beam, following formula 3 and formula 4 are satisfied. Formula 1: Up=(4/π)×P/(Dl×Vc). Formula 2: Ip=(4/π)×P/(Dl×Dc)×(1/1,000). Formula 3: 1≤Up≤10 (J/mm). Formula 4: 100 (kW/mm)≤Ip≤2,000 (kW/mm).

    Abstract translation: 要解决的问题:提供一种低铁损的晶粒取向电磁钢板的制造方法。 解决方案:该方法包括:通过在冷轧和卷绕期间沿其通过方向放置预定间隔的同时在激光束上照射多次片材,在其宽度方向上在硅钢板上形成槽的槽形成步骤。 当P(W)表示激光束的平均强度时; D1(mm)表示激光束的聚光束的通过方向上的聚光束直径; Dc(mm)表示其宽度方向的聚光束直径; Vc(mm / s)表示激光束的宽度方向的扫描速度; 以下公式1表示激光束的照射能量密度Up; 并且公式2表示激光束的瞬时功率密度Ip,满足公式3和式4。 公式1:Up =(4 /π)×P /(D1×Vc)。 公式2:Ip =(4 /π)×P /(D1×Dc)×(1 / 1,000)。 公式3:1≤Up≤10(J / mm 2 )。 公式4:100(kW / mm 2 )≤Ip≤2,000(kW / mm 2 )。 版权所有(C)2013,JPO&INPIT

    High-strength bake hardening type cold-rolled steel sheet and a method of manufacturing the same

    公开(公告)号:JP5043248B1

    公开(公告)日:2012-10-10

    申请号:JP2012506025

    申请日:2011-04-27

    Abstract: 質量%で、C:0.0010〜0.0040%、Si:0.005〜0.05%、Mn:0.1〜0.8%、P:0.01〜0.07%、S:0.001〜0.01%、Al:0.01〜0.08%、N:0.0010〜0.0050%、Nb:0.002〜0.020%、及びMo:0.005〜0.050%を含有し、[Mn%]/[P%]が1.6以上45以下、[C%]−(12/93)×[Nb%]が0.0005%以上0.0025%以下であり、残部がFe及び不可避不純物からなり、板厚の1/4厚の深さ位置における面に平行な{222}面、{110}面、及び{200}面の各X線回折積分強度比X(222)、X(110)、及びX(200)が、下記式を満たし、引張強度が300MPa以上450MPa以下である、焼付硬化性、常温耐時効性、及び深絞り加工性に優れ、且つ面内異方性が小さい高強度焼付硬化型冷延鋼板を提供する。
    X(222)/{X(110)+X(200)}≧3.0
    【選択図】図1

    Abstract translation: 本发明提供一种具有优异的烘烤硬化性,耐寒化性和深冲性的烘烤硬化性高强度冷轧钢板,其平均各向异性降低,其含有以质量%计的化学成分:C:0.0010〜0.0040 %,Si:0.005〜0.05%,Mn:0.1〜0.8%,P:0.01〜0.07%,S:0.001〜0.01%,Al:0.01〜0.08%,N:0.0010〜0.0050% Nb:0.002〜0.020%,Mo:0.005〜0.050%,[Mn%] / [P%]的值在1.6〜45的范围内,[Mn%]为Mn, P%]为P,由[C%] - (12/93)×[Nb%]得到的固溶体中的C量在0.0005〜0.0025%的范围内,[C%]为 C和[Nb%]的量是Nb的量,余量包括Fe和不可避免的杂质,其中可烘烤硬化性高强度冷轧钢板满足下列等式(1),其中X(222) ,X(110)和X(200)表示{222}面的X射线衍射的积分强度的比, {110}面和{200}面平行于从钢板表面测量的厚度为1/4板的平面,并且可烘烤硬化性高强度冷轧钢板具有拉伸强度 强度在300MPa至450MPa的范围内。 X(222)/ {X(110)+ X(200)}> = 3.0等式(1)

Patent Agency Ranking