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公开(公告)号：US07887645B1
公开(公告)日：2011-02-15
申请号：US09847236
申请日：2001-05-02
CPC分类号： C22C38/008 , C21D8/12 , C21D8/1222 , C21D8/1233 , C21D8/1255 , C21D8/1261 , C21D8/1272 , C21D8/1283 , C21D8/1294 , C21D2211/001 , C21D2211/005 , C22C38/34 , C22C38/42 , C22C38/44
摘要： The present invention provides a method of producing a high permeability grain oriented electrical steel having excellent mechanical and magnetic properties. A hot band having a thickness of about 1.5 to about 4.0 mm has a chemistry comprising about 2.5 to about 4.5% silicon, about 0.1 to about 1.2% chromium, about 0.02 to about 0.08% carbon, about 0.01 to about 0.05% aluminum, up to about 0.1% sulfur, up to about 0.14% selenium, about 0.03 to about 0.15% manganese, up to about 0.2% tin, up to about 1% copper, and balance being essentially iron and residual elements, all percentages by weight. The band has a volume resistivity of at least about 45 μΩ-cm, an austenite volume fraction (γ1150° C.) of at least 20% and the strip has an isomorphic layer thickness of at least about 2% of the total thickness on at least one surface of the hot processed band. The band is rapidly cooled after the anneal prior to cold rolling at a rate of at least 30° C./second from 875-950° C. to a temperature below 400° C. The band is cold reduced in one or more stages with a final reduction of at least 80%, annealed, decarburized and coated with an annealing separator on at least one side. A final annealing provides stable secondary grain growth and a permeability measured at 796 A/m of at least 1840.
摘要翻译： 本发明提供一种具有优异的机械和磁特性的高磁导率晶粒取向电工钢的制造方法。 厚度为约1.5至约4.0mm的热带具有包括约2.5至约4.5％的硅，约0.1至约1.2％的铬，约0.02至约0.08％的碳，约0.01至约0.05％的铝，上升的化学 至约0.1％的硫，至多约0.14％的硒，约0.03至约0.15％的锰，至多约0.2％的锡，至多约1％的铜，余量基本上为铁和残余元素，所有重量百分比。 该带具有至少约45μΩ·cmgr·cm的体积电阻率，至少为20％的奥氏体体积分数（γ1150℃），并且该条带具有至少约2％的总厚度的同形层厚度 热处理带的至少一个表面。 在冷轧后，将带材在冷却后以至少30℃/秒从875-950℃至低于400℃的温度被快速冷却。该带在一个或多个阶段中被冷还原， 至少80％的最终还原，退火，脱碳并在至少一侧上用退火分离剂涂覆。 最终退火提供稳定的二次晶粒生长和在796A / m至少1840测量的渗透性。
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公开(公告)号：US5702539A
公开(公告)日：1997-12-30
申请号：US808894
申请日：1997-02-28
IPC分类号： C21D3/04 , C21D7/02 , C21D8/12 , C22C38/00 , C22C38/02 , C22C38/60 , H01F1/147 , H01F1/16 , H01F1/04
CPC分类号： C22C38/02 , C21D8/12 , H01F1/14783 , C21D3/04 , C21D8/1266
摘要： The present invention provides a method of producing grain oriented electrical steel having excellent mechanical and magnetic properties. A hot processed strip having a thickness of 1.5-4.0 mm thickness a composition consisting essentially of 2.5-4.5% silicon, 0.1-1.2% chromium, less than 0.050% carbon, less than 0.005% aluminum, up to 0.1% sulfur, up to 0.14% selenium, 0.01-1% manganese and balance being essentially iron and residual elements, all percentages by weight. The strip has a volume resistivity of at least 45 .mu..OMEGA.-cm, at least 0.010% carbon so that an austenite volume fraction (.gamma..sub.1150.degree. C.) of at least 2.5% is present in the hot processed strip and each surface of the strip has an isomorphic layer having a thickness of at least 10% of the total thickness of the hot processed strip. The strip is cold reduced to an intermediate thickness, annealed, cold reduced to a final thickness and decarburized to less than 0.003% carbon. The decarburized strip then is coated on at least one surface with an annealing separator and final annealed to effect secondary grain growth. The electrical steel has a permeability measured at 796 A/m of at least 1780.
摘要翻译： 本发明提供一种具有优异的机械和磁特性的晶粒取向电工钢的制造方法。 厚度为1.5-4.0mm厚的热处理带材，其组成基本上由2.5-4.5％的硅，0.1-1.2％的铬，小于0.050％的碳，小于0.005％的铝，至多0.1％的硫组成，至多 0.14％硒，0.01-1％锰，余量基本上为铁和残留元素，均为重量百分比。 该条具有至少45μm的OMEGA-cm的体积电阻率，至少0.010％的碳，使得在热处理带中存在至少2.5％的奥氏体体积分数（γ1150℃），并且 带材具有厚度至少为热处理带材总厚度的10％的同形层。 将钢带冷却至中间厚度，退火，冷却至最终厚度，并脱碳至小于0.003％的碳。 然后将脱碳带涂覆在具有退火分离剂的至少一个表面上，并最终退火以实现二次晶粒生长。 电钢的磁导率测定值为796 A / m，至少1780。
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公开(公告)号：US07140417B2
公开(公告)日：2006-11-28
申请号：US11313367
申请日：2005-12-21
CPC分类号： C21D8/1211 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1272 , C21D8/1283 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/008 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/34 , C22C38/40 , C22C38/44 , C22C38/50 , H01F1/14791
摘要： Non-oriented electrical steels are widely used as the magnetic core material in a variety of electrical machinery and devices, particularly in motors where low core loss and high magnetic permeability in all directions of the strip are desired. A method for producing a non-oriented electrical steel with low core loss and high magnetic permeability provides a steel that is produced from a steel melt which is cast as a thin strip or sheet, cooled, hot rolled and/or cold rolled into a finished strip. The finished strip is further subjected to at least one annealing treatment wherein the magnetic properties are developed, making the steel strip suitable for use in electrical machinery such as motors or transformers.
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公开(公告)号：US07011139B2
公开(公告)日：2006-03-14
申请号：US10374595
申请日：2003-02-25
IPC分类号： B22D11/00
CPC分类号： C21D8/1211 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1272 , C21D8/1283 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/008 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/34 , C22C38/40 , C22C38/44 , C22C38/50 , H01F1/14791
摘要： Non-oriented electrical steels are widely used as the magnetic core material in a variety of electrical machinery and devices, particularly in motors where low core loss and high magnetic permeability in all directions of the strip are desired. A method for producing a non-oriented electrical steel with low core loss and high magnetic permeability provides a steel that is produced from a steel melt which is cast as a thin strip or sheet, cooled, hot rolled and/or cold rolled into a finished strip. The finished strip is further subjected to at least one annealing treatment wherein the magnetic properties are developed, making the steel strip suitable for use in electrical machinery such as motors or transformers.
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公开(公告)号：US07377986B2
公开(公告)日：2008-05-27
申请号：US11494369
申请日：2006-07-27
CPC分类号： C21D8/1222 , C21D8/1205 , C21D8/1233 , C21D8/1272 , H01F1/16
摘要： The present invention relates to a method for producing a non-oriented electrical steel with improved magnetic properties and improved resistance to ridging, brittleness, nozzle clogging and magnetic aging. The chromium bearing steel is produced from a steel melt which is cast as a thin slab or conventional slab, cooled, hot rolled and/or cold rolled into a finished strip. The finished strip is further subjected to at least one annealing treatment wherein the magnetic properties are developed, making the steel sheet of the present invention suitable for use in electrical machinery such as motors or transformers.
摘要翻译： 本发明涉及一种具有改善的磁特性和改进的抗皱纹，脆性，喷嘴堵塞和磁老化的无取向电工钢的制造方法。 铬轴承钢由铸造成薄板坯或常规板坯的钢熔体制成，冷却，热轧和/或冷轧成成品条。 成品条进一步进行至少一个退火处理，其中磁特性被开发，使得本发明的钢板适用于电动机或变压器等电机。
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6.发明授权
公开(公告)号：US4718951A
公开(公告)日：1988-01-12
申请号：US902094
申请日：1986-08-27
申请人： Jerry W. Schoen
发明人： Jerry W. Schoen
CPC分类号： C21D8/1222
摘要： A method of producing cube-on-edge oriented silicon steel strip and sheet from strand cast slabs, wherein a slab is prerolled at a temperature not exceeding 1673.degree. K. with a reduction in thickness up to 50%, and the prerolled slab is reheated to a temperature between 1533.degree. and 1673.degree. K. prior to hot rolling. The slab prerolling temperature, percentage of reduction in prerolling, and the reheat temperature are correlated in accordance with a specific equation in order to control the strain rate during prerolling and to obtain an average grain diameter not exceeding about 9 mm after reheating.
摘要翻译： 一种从铸钢板生产立方体上取向的硅钢带材和片材的方法，其中板坯在不超过1673℃的温度下被预先滚动，厚度减少到50％，并且预先轧制的板坯被再加热 在热轧之前温度为1533℃至1673℃。 为了控制预卷制中的应变速率，在再加热后得到的平均粒径不超过约9mm，板坯预卷温度，预卷压减少百分比和再热温度根据具体方程相关。
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公开(公告)号：US5096510A
公开(公告)日：1992-03-17
申请号：US448397
申请日：1989-12-11
CPC分类号： C21D8/125 , C21D8/1238
摘要： The thermal flattening of grain oriented silicon steel which is in the semi-processed condition has improved magnetic properties after a stress relief anneal by using a low temperature and high tension flattening anneal. The flattening process is conducted at a temperature between 1000.degree. to 1435.degree. F. (540.degree. to 780.degree. C.) with a tension selected to produce a yield strength/tension ratio from above 5 to about 20 and preferably from 7 to 13. The yield strength of the material will vary depending on the length of the time at peak temperature but are typically from 400 to 4000 psi (29,200 to 292,000 gm/cm.sup.2). The material as thermally flattened will have at least about 10% stress. After a stress relief anneal above about 1450.degree. F. (785.degree. C.), the material has significantly improved core loss compared to conventional thermally flattened material. The material is particularly suited for wound transformer core applications.
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公开(公告)号：US4554029A
公开(公告)日：1985-11-19
申请号：US439884
申请日：1982-11-08
申请人： Jerry W. Schoen , Russel L. Young
发明人： Jerry W. Schoen , Russel L. Young
CPC分类号： H01F1/14783 , C21D8/1294 , C21D9/46
摘要： A process for improving the core loss of magnetic materials of the type having a plurality of magnetic domains and which may have an insulative coating such as a mill glass, an applied coating, or both. The magnetic material is subjected to a local heat treatment employing radio frequency induction heating, radio frequency resistance heating, or electron beam resistance heating to induce artificial boundaries. Thereafter, the magnetic material is subjected to an annealing treatment.
摘要翻译： 一种用于改善具有多个磁畴的磁性材料的磁芯损耗的方法，并且可以具有绝缘涂层如磨玻璃，涂覆涂层或两者。 对磁性材料进行使用射频感应加热，射频电阻加热或电子束电阻加热的局部热处理，以诱导人造边界。 然后，对磁性材料进行退火处理。
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![Method of producing (110)[001] grain oriented electrical steel using strip casting](/abs-image/US/2004/06/15/US06749693B2/abs.jpg.150x150.jpg)
9.发明授权Method of producing (110)[001] grain oriented electrical steel using strip casting 有权使用条带铸造生产（110）[001]晶粒取向电工钢的方法公开(公告)号：US06749693B2
公开(公告)日：2004-06-15
申请号：US10242885
申请日：2002-09-13
申请人： Jerry W. Schoen , Glenn S. Huppi
发明人： Jerry W. Schoen , Glenn S. Huppi
IPC分类号： H01F114
CPC分类号： C21D8/1211 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1272
摘要： In a method of producing a strip suitable for further processing to yield a (110)[001] grain oriented electrical steel from a thin strip such as a continuously cast thin strip the thin cast strip is processed to promote recrystallization from the surface layer of the strip (S=0) into the quarter thickness of the strip (S=0.2 to 0.3). The process parameters are selected so that the strain/recrystallization parameter (K*)−1, ≧about 6500 and wherein, ( K * ) - 1 = ( T HBA ) ln [ e . 0.15 exp ( 7616 T HR ) ln ( t c t f ) ] THBA is the annealing temperature of the strip (in °Kelvin), THR is the hot rolling temperature of the strip (in °Kelvin), {dot over (&egr;)} is the strain rate of hot rolling, ti is the initial thickness of the strip before hot rolling, and tf is the final thickness of the strip after hot rolling.
摘要翻译： 在制造适于进一步加工以从诸如连续铸造的薄带的薄带产生（110）[001]晶粒取向电工钢的条的方法中，处理该薄铸造带以促进从 条（S = 0）到条的四分之一厚度（S = 0.2至0.3）。 选择工艺参数，使得应变/再结晶参数（K *）=> 6500，其中THBA是条带的退火温度（以开尔文为单位），THR是条带的热轧温度 （以开尔文为单位），{点数（ε是热轧的应变率，ti是热轧前的带材的初始厚度，tf是热轧后的带材的最终厚度。
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10.发明授权
公开(公告)号：US4948656A
公开(公告)日：1990-08-14
申请号：US375237
申请日：1989-07-03
申请人： Jerry W. Schoen
发明人： Jerry W. Schoen
CPC分类号： H01F1/18 , B32B15/01 , B32B37/0038 , Y10T29/49071 , Y10T29/49078 , Y10T29/49885 , Y10T428/24967 , Y10T428/31641 , Y10T428/31678 , Y10T428/31714 , Y10T428/31844
摘要： Method for forming a laminate and a product formed thereof. A thin layer of oil is applied to a facing surface of at least one a plurality of adjacent laminations. The laminations are passed between a pair of rollers which apply sufficient pressure to remove excess oil between the facing surfaces. The air between the facing surfaces is displaced and the remaining oil forms a seal to prevent reentry of the air. The laminate is tightly held together to permit handling or fabrication without delamination.
摘要翻译： 形成层压体的方法及其形成的产品。 将一薄层油施加到至少一个多个相邻叠片的相对表面上。 叠片在一对辊之间通过，其施加足够的压力以在相对表面之间除去多余的油。 相对表面之间的空气被移动，剩余的油形成密封以防止空气的再入。 层压板紧紧地保持在一起以允许处理或制造而不分层。
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