公开(公告)号：US06773514B1

公开(公告)日：2004-08-10

申请号：US10030259

申请日：2002-06-06

申请人： Rudolf Kawalla ,  Hans Pircher ,  Karl Ernst Friedrich ,  Brigitte Hammer ,  Jürgen Schneider ,  Olaf Fischer ,  Carl-Dieter Wuppermann

发明人： Rudolf Kawalla ,  Hans Pircher ,  Karl Ernst Friedrich ,  Brigitte Hammer ,  Jürgen Schneider ,  Olaf Fischer ,  Carl-Dieter Wuppermann

IPC分类号： H01F100

CPC分类号： C21D8/1261 ,  C21D8/1222 ,  C21D8/1272

摘要： The present invention relates to a method for producing non grain-oriented magnetic steel sheets in which hot strip is produced from an input stock such as cast slabs, strip, roughed strip, or thin slabs, made of steel comprising (in weight %) C: 0.001-0.05%; Si: ≦1.5%; Al: ≦0.4% with Si+2Al≦1.7%; Mn: 0.1-1.2%; if necessary up to a total of 1.5% of alloying additions such as P, Sn, Sb, Zr, V, Ti, N, Ni, Co, Nb and/or B; with the remainder being iron as well as the usual accompanying elements; in that the input stock is hot-rolled directly from the casting heat or after preceding reheating to a reheating temperature between min. 1000° C. and max. 1180° C. in several deformation passes, and subsequently coiled, wherein during hot-rolling at least the first deformation pass takes place in the austenitic region and at least one further deformation pass takes place in the two-phase mixing region austenite/ferrite, and wherein during rolling in the two-phase mixing region a total deformation &egr;h of at least 35% is achieved.

摘要翻译： 本发明涉及一种非晶取向电磁钢板的制造方法，其特征在于，使用由含有（重量％）C以上的钢的铸钢板，带材，粗轧带或薄板坯等输入坯料制成热轧带钢 ：0.001-0.05％ Si：<= 1.5％; Al：Si + 2Al <= 1.7％时<= 0.4％; Mn：0.1-1.2％; 必要时可以添加合金添加剂如P，Sn，Sb，Zr，V，Ti，N，Ni，Co，Nb和/或B的合计添加量的1.5％ 其余的是铁和通常的伴随元素; 因为输入原料直接从铸造热或在先前的再加热之后热轧到最小的再加热温度。 1000°C和最大 1180℃，然后卷绕，其中在热轧期间，至少第一变形通过发生在奥氏体区域中，并且在两相混合区域奥氏体/铁素体中进行至少一个进一步的变形通过， 并且其中在所述两相混合区域中的轧制期间，实现至少35％的总变形ε。

公开(公告)号：US06767412B2

公开(公告)日：2004-07-27

申请号：US10221685

申请日：2003-01-14

申请人： Karl Ernst Friedrich ,  Brigitte Hammer ,  Rudolf Kawalla ,  Olaf Fischer ,  Jürgen Schneider ,  Carl-Dieter Wuppermann

发明人： Karl Ernst Friedrich ,  Brigitte Hammer ,  Rudolf Kawalla ,  Olaf Fischer ,  Jürgen Schneider ,  Carl-Dieter Wuppermann

IPC分类号： H01F100

CPC分类号： C21D8/1222 ,  C21D3/04 ,  C21D8/1233 ,  C21D8/1272

摘要： The invention relates to a method for producing non-grain-oriented hot-rolled magnetic steel sheet in which from a raw material such as cast slabs, strip, roughed strip or thin slabs produced from a steel comprising (in weight %) C: 0.0001-0.05%; Si: ≦1.5%; Al: ≦0.5%, wherein [% Si]+2[% Al]≦1.8; Mn: 0.1-1.2%; if necessary up to a total of 1.5% of alloying additions such as P, Sn, Sb, Zr, V, Ti, N, Ni, Co, Nb and/or B, with the remainder being iron and the usual impurities, in a finishing roll line at temperatures above the Ar1 temperature, a hot strip with a thickness ≦1.5 mm is rolled, wherein at least the last forming pass of hot rolling is carried out in the mixed region austenite/ferrite and wherein the total deformation &egr;H achieved during rolling in the mixed region austenite/ferrite is

公开(公告)号：US07501028B2

公开(公告)日：2009-03-10

申请号：US10514983

申请日：2003-05-15

申请人： Brigitte Hammer ,  Karl Ernst Friedrich ,  Olaf Fischer ,  Jürgen Schneider ,  Carl-Dieter Wuppermann

发明人： Brigitte Hammer ,  Karl Ernst Friedrich ,  Olaf Fischer ,  Jürgen Schneider ,  Carl-Dieter Wuppermann

IPC分类号： H01F1/147

CPC分类号： C21D8/1222 ,  C21D8/0236 ,  C21D8/0273 ,  H01F1/14775

摘要： The invention relates to non-grain oriented magnetic steel sheets which can be produced as final annealed and as a non-final annealed types in such a way that they have improved magnetic polarisation and reduced magnetic reversal losses compared with the previously achieved values. This is achieved in that a suitably composed steel, during its cooling starting from a maximum initial temperature of 1,300° C., passes through a temperature range with substantially complete exclusion of a purely austenitic structure (γ phase), in which range it comprises an austenite/ferrite dual phase multi-structure (α, γ multi-phases), so the magnetic steel sheet, after hot rolling, etching, cold rolling and annealing of the hot strip obtained after hot rolling, has a magnetic polarisation J2500≧1.74 T, measured in the longitudinal direction of the strip or sheet and at a magnetic field strength of 2,500 A/m and a value P1.5(50) of the magnetic losses of

摘要翻译： 本发明涉及可以作为最终退火生产的非晶粒取向的电磁钢板和非最终退火类型，使得它们与先前实现的值相比具有改进的磁极化和减小的磁反转损耗。 这是通过适当组合的钢在从1300℃的最高初始温度开始的冷却期间通过温度范围，完全排除纯奥氏体结构（γ相），其范围包括 奥氏体/铁素体双相多结构（α，γ多相），因此电磁钢板经过热轧后的热轧，蚀刻，冷轧和退火得到的热轧后，具有磁极化J2500> = 1.74 T，在带材或片材的纵向方向上测量的磁场强度为2500A / m，磁损耗为4.5W / kg的值为P1.5（50），在 J = 1.5T，频率f = 50Hz。

公开(公告)号：US20050247373A1

公开(公告)日：2005-11-10

申请号：US10514983

申请日：2003-05-15

申请人： Brigitte Hammer ,  Karl Friedrich ,  Olaf Fischer ,  Jurgen Schneider ,  Carl-Dieter Wuppermann

发明人： Brigitte Hammer ,  Karl Friedrich ,  Olaf Fischer ,  Jurgen Schneider ,  Carl-Dieter Wuppermann

IPC分类号： C21D8/02 ,  C21D8/12 ,  C22C38/00 ,  C22C38/06 ,  C22C38/16 ,  H01F1/147 ,  H01F1/16

CPC分类号： C21D8/1222 ,  C21D8/0236 ,  C21D8/0273 ,  H01F1/14775

摘要： The invention relates to non-grain oriented magnetic steel sheets which can be produced as final annealed and as a non-final annealed types in such a way that they have improved magnetic polarisation and reduced magnetic reversal losses compared with the previously achieved values. This is achieved in that a suitably composed steel, during its cooling starting from a maximum initial temperature of 1,300° C., passes through a temperature range with substantially complete exclusion of a purely austenitic structure (γ phase), in which range it comprises an austenite/ferrite dual phase multi-structure (α, γ multi-phases), so the magnetic steel sheet, after hot rolling, etching, cold rolling and annealing of the hot strip obtained after hot rolling, has a magnetic polarisation J2500≧1.74 T, measured in the longitudinal direction of the strip or sheet and at a magnetic field strength of 2,500 A/m and a value P1.5(50) of the magnetic losses of

摘要翻译： 本发明涉及可以作为最终退火生产的非晶粒取向的电磁钢板和非最终退火类型，使得它们与先前实现的值相比具有改进的磁极化和减小的磁反转损耗。 这是通过适当组合的钢在从1300℃的最高初始温度开始的冷却期间通过温度范围，完全排除纯奥氏体结构（γ相），其范围包括 奥氏体/铁素体双相多结构（α，γ多相），因此在热轧后获得的热轧带钢的热轧，蚀刻，冷轧和退火后的磁性钢板具有磁极化J < 2500 > = 1.74T，在条带或片材的纵向方向上测量，并且磁场强度为2500A / m，磁损耗的值P <1.5（50） 在J = 1.5T和频率f = 50Hz下沿条带的纵向测量的<4.5W / kg。

公开(公告)号：US20060086429A1

公开(公告)日：2006-04-27

申请号：US10513767

申请日：2003-05-02

申请人： Yvan Houbaert ,  Carl-Dieter Wupperman ,  Olaf Fischer ,  Jurgen Schneider

发明人： Yvan Houbaert ,  Carl-Dieter Wupperman ,  Olaf Fischer ,  Jurgen Schneider

IPC分类号： H01F1/04

CPC分类号： C22C38/004 ,  C21D8/1211 ,  C21D8/1255 ,  C21D8/1272 ,  C21D9/52 ,  C22C38/02

摘要： The present invention relates to a cold-rolled steel strip or sheet in thicknesses of ≦0.70 mm for electromagnetic applications, consisting of a steel containing (in % by weight) C: 1000° C. and has been final hot-rolled at a hot-rolling final temperature TF>800° C. to form a hot strip, which has then been cooled, starting from a temperature TC of the hot strip amounting to at least 750° C. but less than 850° C., at a cooling speed ΔT/Δt of at least 400° C./min. to a temperature of less than 300° C., subjected after cooling to a surface treatment such as mechanical descaling and/or pickling, after the surface treatment has been cold-rolled at a temperature amounting to maximum 500° C., and has finally been final-annealed.

摘要翻译： 本发明涉及电磁应用的厚度<= 0.70mm的冷轧钢带或片，由含有（重量％）C：<0.01％，Si：3.2-7％，Al： <2％，Mn：<= 1％，其余为铁和常规杂质，其在熔炼后被铸造形成基材，例如板坯，薄板坯或薄带，然后将其加热 通过温度T 1000℃，并且在热轧最终温度T F F / 800℃下最终热轧，以形成热带 ，然后冷却，从热条的温度T℃开始至少750℃但小于850℃，至少冷却速度DeltaT / Deltat至少 400℃/ min。 在低于300℃的温度下，在冷却至表面处理如机械除锈和/或酸洗之后，在表面处理在最大温度为500℃的温度下进行冷轧后， 被最终退火。