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1. 发明公开

KR1020130014891A 자성이 우수한 방향성 전기강판 및 그 제조방법 有权
标题翻译：具有优异磁性的面向电磁钢板及其制造方法
公开(公告)号：KR1020130014891A
公开(公告)日：2013-02-12
申请号：KR1020110076617
申请日：2011-08-01
申请人： 주식회사 포스코
发明人： 주형돈 , 박종태 , 김창수 , 나광덕 , 서진욱 , 박종호 , 고경준 , 김병구
IPC分类号： C22C38/00 , C21D8/12 , C22C38/60 , H01F1/16
CPC分类号： C22C38/06 , C21D8/1222 , C21D8/1261 , C21D8/1272 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14
摘要： PURPOSE: A grain oriented electrical steel sheets with an excellent magnetic properties and a manufacturing method are provided to manufacture the grain oriented electrical steel sheet of high magnetic flux density low pulsating loss by improving the volume fraction of the precision in the steel sheet which is first recrystalized, and improve the crystal orientation focusing degree after the second recrystalization by causing a stable second recrystalization. CONSTITUTION: A grain oriented electrical steel sheet with an excellent magnetic properties comprises at least one factor selected from the group composed of Si: 2.0~4.0%, C: less than 0.085%, the acid solubility Al: 0.015~0.04%, Mn: less than 0.20%, N: less than 0.010%, S: less than 0.010%, (P:0.01~0.07%, Bi:0.005~0.1%, Zn:0.01~0.3%, Ti:0.01~0.3%, Te:0.01~0.3%, Nb:0.01~0.3%, Mo:0.008~0.3%, Ge:0.01~0.3%, B:0.01~0.1%, Cd:0.008~0.3%), in a % weight, remaining Fe, and the impurity which is mixed inevitably. A grain oriented electrical steel sheet with an excellent magnetic properties have a β angle of 1.5~2.6° and a δ angle of 5° or less, in an absolute value area weighted average the crystal orientation. Β angle means the average angle of misorientation from the direction over {110} around the rolling right angle direction of the second recrystallization collection, and δ angle means the average angle of misorientation between crystal orientation and the rolling direction in the second recrystallization collection.
摘要翻译：目的：提供一种磁性能优异的晶粒取向电工钢板及其制造方法，通过提高钢板的精度的体积分数来制造高磁通密度低脉动损耗的晶粒取向电工钢板重结晶，通过稳定的第二重结晶，提高第二重结晶后的晶体取向聚焦度。构成：具有优异的磁特性的晶粒取向电工钢板包括至少一种选自Si：2.0〜4.0％，C：小于0.085％，酸溶度Al：0.015〜0.04％，Mn：小于0.010％，S：小于0.010％，（P：0.01〜0.07％，Bi：0.005〜0.1％，Zn：0.01〜0.3％，Ti：0.01〜0.3％，Te： 0.01〜0.3％，Nb：0.01〜0.3％，Mo：0.008〜0.3％，Ge：0.01〜0.3％，B：0.01〜0.1％，Cd：0.008〜0.3％），不可避免地混合的杂质。具有优异磁特性的晶粒取向电工钢板的β角为1.5〜2.6°，δ角为5°以下，绝对值面积加权平均晶体取向。 Β角是指在第二再结晶组合的滚动直角方向上从{110} <001>方向的取向的平均角度，δ角是指<001>晶体取向与轧制方向的取向的平均取向角第二次再结晶收集。

2. 发明公开

KR1020140086716A 방향성 전기강판 및 그 제조방법 无效
标题翻译：面向电工钢板及其制造方法
公开(公告)号：KR1020140086716A
公开(公告)日：2014-07-08
申请号：KR1020120157550
申请日：2012-12-28
申请人： 주식회사 포스코
发明人： 나광덕 , 전근하 , 함영택
IPC分类号： C21D8/12
CPC分类号： C21D8/0257 , C21D1/26
摘要： The present invention relates to a grain-oriented electrical steel sheet and a manufacturing method therefor which heats steel slab, and then successively performs hot rolling, cold rolling, decarbonizing, nitride annealing, and final high temperature annealing. Disclosed is the grain-oriented electrical steel sheet and the manufacturing method therefor, wherein the method maintains furnace sulfide within a normal operation level by controlling the opening degree of burn off for each section or the opening degree of a seal roll on an entrance or exit side when the ratio of hydrogen of a decarbonizing and nitride annealing furnace is changed ±2.5% or greater than that of the decarbonizing and nitride annealing furnace in a normal operation state.
摘要翻译：本发明涉及一种用于加热钢坯的方向性电磁钢板及其制造方法，然后依次进行热轧，冷轧，脱碳，氮化物退火和最终的高温退火。本发明提供一种方向性电磁钢板及其制造方法，其特征在于，所述方法通过控制每个部分的燃烧开度或入口或出口处的密封辊的开度，将炉硫化物维持在正常运行水平脱碳氮化物退火炉的氢比例在脱碳氮化退火炉的正常工作状态下变化±2.5％以上时，

3. 发明公开

KR1020120074024A 저철손 고자속밀도 방향성 전기강판 및 이의 제조방법 有权
标题翻译：具有极低的低损耗和高通量密度的面向导电的电工钢板及其制造方法
公开(公告)号：KR1020120074024A
公开(公告)日：2012-07-05
申请号：KR1020100135965
申请日：2010-12-27
申请人： 주식회사 포스코
发明人： 송대현 , 나광덕
IPC分类号： C21D8/12 , C22C38/02
CPC分类号： C21D8/12 , C21D1/26 , C21D6/008 , C21D8/1255 , C22C38/02
摘要： PURPOSE: An oriented electrical steel sheet with low core loss and high magnetic flux density and a manufacturing method thereof are provided to improve the magnetic characteristic of a steel sheet by stabilizing secondary recrystallization by keeping the balance between driving power and inhibiting power for the growth of crystal grains. CONSTITUTION: An oriented electrical steel sheet with low core loss and high magnetic flux density manufacturing method is as follows. A slab is composed of Si 2.0 to 4.5wt.%, Al(Aluminum) 0.005 to 0.040wt.%, Mn(Manganese) lower than 0.20wt.%, N(Nitrogen) lower than 0.006wt.%, S(Sulfur) lower than 0.006wt.%, P(Phosphorus) 0.005 to 0.05wt.%, C(Carbon) 0.04 to 0.10wt.%, Sn 0.08 to 0.10wt.%, Cr(Chromium) 0.05 to 0.5wt.%, residual Fe(Iron), and inevitable impurities. The slab is heated in 1200 to 1300°C and hot-rolled and the hot-rolled sheet is annealed and cold-rolled, and decarbonization and nitride annealing are applied, and secondary recrystallization and annealing are applied to the sheet.
摘要翻译：目的：提供低磁芯损耗和高磁通密度的取向电工钢板及其制造方法，以通过保持驱动功率与抑制功率之间的平衡来稳定二次再结晶来提高钢板的磁特性晶粒。构成：具有低磁芯损耗和高磁通密度制造方法的取向电工钢板如下。板坯由Si 2.0〜4.5重量％，Al（铝）0.005〜0.040重量％，Mn（锰）低于0.20重量％，N（氮）低于0.006重量％，S（硫）低于0.006重量％，P（磷）0.005〜0.05重量％，C（碳）0.04〜0.10重量％，Sn 0.08〜0.10重量％，Cr（铬）0.05〜0.5重量％（铁）和不可避免的杂质。将板坯在1200〜1300℃下加热并进行热轧，对热轧板进行退火冷轧，进行脱碳氮化退火，对板进行二次再结晶退火。

4. 发明授权

KR101351955B1 자성이 우수한 방향성 전기강판 및 그 제조방법 有权
标题翻译：具有优异磁性的面向电磁钢板及其制造方法
公开(公告)号：KR101351955B1
公开(公告)日：2014-01-16
申请号：KR1020110076617
申请日：2011-08-01
申请人： 주식회사 포스코
发明人： 주형돈 , 박종태 , 김창수 , 나광덕 , 서진욱 , 박종호 , 고경준 , 김병구
IPC分类号： C22C38/00 , C21D8/12 , C22C38/60 , H01F1/16
摘要： 본 발명은 방향성 전기강판 및 그 제조방법에 관한 것으로, 중량%로, Si:2.0~4.0%, C:0.085%이하, 산가용성Al:0.015~0.04%, Mn:0.20%이하, N:0.010%이하, S:0.010%이하, (P:0.01~0.07%, Bi:0.005~0.1%, Zn:0.01~0.3%, Ti:0.01~0.3%, Te:0.01~0.3%, Nb:0.01~0.3%, Mo:0.008~0.3%, Ge:0.01~0.3%, B:0.01~0.1%, Cd:0.008~0.3%)로 이루어진 군으로부터 선택되는 적어도 1종 이상을 함유하고, 잔부 Fe 및 기타 불가피하게 혼입되는 불순물로 이루어지는 강 슬라브를 열간압연 및 냉간압연하고, 냉간압연된 강판을 재결정소둔한 후 최종소둔을 실시하되, 상기 재결정소둔은 300℃/sec 이상의 평균승온속도로 승온하는 초급속승온과정과, 상기 초급속승온과정 후에 상기 초급속승온과정에서의 평균승온속도보다 낮고 100℃/sec보다 높은 평균승온속도로 승온하는 급속승온과정, 및 상기 급속승온과정 후에 상기 급속승온과정에서의 평균승온속도보다 낮은 평균승온속도로 승온하는 일반승온과정이 포함되는 것을 특징으로 하는 방향성 전기강판의 제조방법 및 이에 의해 제조된 자성이 우수한 방향성 전기강판을 제공한다.
따라서 재결정소둔의 승온과정에 3단의 승온패턴(초급속승온, 급속승온 및 일반승온)을 도입하고 적정 함량의 보조인히비터 원소를 첨가함으로써 1차재결정 집합조직을 변화시키고 2차재결정을 안정적으로 일으켜 결정방위 집적도를 개선함에 의하여 고자속밀도 저철손의 방향성 전기강판을 제조할 수 있다.

5. 发明授权

KR101263846B1 저철손 고자속밀도 방향성 전기강판 및 이의 제조방법 有权
标题翻译：晶粒取向电磁钢板，其磁芯损耗极低，磁通密度高，制造方法
公开(公告)号：KR101263846B1
公开(公告)日：2013-05-13
申请号：KR1020100135965
申请日：2010-12-27
申请人： 주식회사 포스코
发明人： 송대현 , 나광덕
IPC分类号： C21D8/12 , C22C38/02
摘要： 본발명은방향성전기강판의제조에관한것으로, 중량%로, Si: 2.0~4.5%, Al: 0.005~0.040%, Mn: 0.20%이하, N: 0.006%이하, S: 0.006%이하, P: 0.005~0.05%, C: 0.04~0.10%, Sn: 0.08~0.10%, Cr: 0.05~0.5%를함유하고잔부 Fe 및기타불가피하게혼입되는불순물로이루어지는슬라브를 1200~1300℃로가열하고, 열간압연한후, 열연판소둔, 냉간압연을실시하고, 이어서탈탄및 질화소둔을실시한후, 2차재결정소둔을실시하는과정을포함하여이루어지며, Sn이주된결정립성장억제제로활용되는저철손고자속밀도방향성전기강판의제조방법을제공한다. 따라서본 발명에의하면적정량의 Sn을주된결정립성장억제제로활용하여 1차재결정집합조직에서고스방위를갖는결정립의분율을증가시키고, 슬라브재가열시질화물과황화물과같은석출물이완전히용체화되도록제강단계에서 N과 S의함량을조정한후 적정온도조건으로슬라브재가열을실시하고, 탈탄및 질화소둔의승온조건과탈탄소둔온도를적정화하여결정성장구동력과억제력의균형을적절히유지시켜 2차재결정을안정화함으로써최종 2차재결정후의 {110} 방위로의집적도가매우높고결정립크기가미세한고스집합조직으로구성된초저철손고자속밀도방향성전기강판을제조할수 있다.

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