公开(公告)号：US20160247613A1

公开(公告)日：2016-08-25

申请号：US15027368

申请日：2014-10-20

申请人： NORTHEASTERN UNIVERSITY

发明人： Guodong WANG ,  Yuanxiang ZHANG ,  Yang WANG ,  Xiang LU ,  Feng FANG ,  Guangming CAO ,  Chenggang LI ,  Guo YUAN ,  Yunbo XU ,  Zhenyu LIU ,  Zhaodong WANG

IPC分类号： H01F1/147 ,  C22C38/06 ,  C22C38/04 ,  B22D11/041 ,  C22C38/00 ,  C21D9/52 ,  C21D8/04 ,  B22D11/00 ,  C22C38/12 ,  C22C38/02

CPC分类号： H01F1/14766 ,  B22D11/001 ,  B22D11/041 ,  B22D11/0622 ,  B22D11/1206 ,  C21D8/0405 ,  C21D8/0415 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0463 ,  C21D8/0473 ,  C21D8/0478 ,  C21D8/12 ,  C21D8/1205 ,  C21D8/1211 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C21D8/1277 ,  C21D9/52 ,  C21D2201/05 ,  C22C38/001 ,  C22C38/002 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12

摘要： The preparation method includes steps of (1) melting steel according to in weight percentage 0.001-0.003% of C, 5.0-6.6% of Si, 0.2-0.3% of Mn, 0.05-0.12% of Al, 0.01-0.04% of V, 0.03-0.06% of Nb, 0.02-0.03% of S, 0.009-0.020% of N, O which is less than or equal to 0.0020%, and the balance being Fe and unavoidable impurities; (2) forming cast strips after a thin-strip casting course; (3) hot-rolling the cast strips under inert atmosphere conditions; (4) cooling the hot-rolled cast strips to 550-600 DEG C, coiling and performing low-temperature hot rolling/warm rolling on the coiled cast strips under a nitrogen atmosphere condition; (5) removing oxidized scales though pickling, performing cold rolling multiple times; (6) performing recrystallization annealing, coating with an MgO layer, and coiling; (7) performing purification annealing under hydrogen circulation conditions; and (8) removing oxidized scales, coating with an insulating layer, performing flat stretch annealing, and air-cooled coiling.

摘要翻译： 该制备方法包括以下步骤：（1）将重量百分比分别为C，0.001-0.003％的C，5.0-6.6％的Si，0.2-0.3％的Mn，0.05-0.12％的Al，0.01-0.04％的V ，0.03-0.06％的Nb，0.02-0.03％的S，0.009-0.020％的N，O，小于或等于0.0020％，余量为Fe和不可避免的杂质; （2）在薄带铸造过程之后形成铸造带; （3）在惰性气氛条件下对铸造带进行热轧; （4）将热轧铸造带冷却至550〜600℃，在氮气氛下对卷取的铸造带进行卷取和低温热轧/热轧; （5）通过酸洗除去氧化鳞片，进行多次冷轧; （6）进行再结晶退火，用MgO层进行涂布和卷取; （7）在氢循环条件下进行纯化退火; 和（8）去除氧化鳞片，用绝缘层涂覆，进行平面拉伸退火和空气冷却卷取。

公开(公告)号：US20090044881A1

公开(公告)日：2009-02-19

申请号：US11921369

申请日：2006-05-19

申请人： Tomoji Kumano ,  Kenichi Murakami ,  Yoshiyuki Ushigami

发明人： Tomoji Kumano ,  Kenichi Murakami ,  Yoshiyuki Ushigami

IPC分类号： C21D8/00 ,  C22C38/02

CPC分类号： H01F1/16 ,  C21D8/12 ,  C21D8/1205 ,  C21D8/1244 ,  C21D8/1261 ,  C21D8/1272 ,  C21D2201/05 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/16 ,  C22C38/60 ,  C23C8/02 ,  C23C8/80 ,  H01F1/14791

摘要： Reheating a grain-oriented electrical steel sheet slab comprising predetermined components to 1280° C. or more and a solid solution temperature of inhibitor substances or more, hot rolling, annealing, and cold rolling it, decarburization annealing it, nitriding it in a strip running state, coating an annealing separator, and finish annealing it during which making a precipitation ratio of N as AlN after hot rolling 20% or less, making a mean grain size of primary recrystallization 7 μm to less than 20 μm, and making a nitrogen increase ΔN in the nitridation within a range of Equation (1) and making nitrogen contents σN1 and σN2 (front and back, mass %) of a 20% thickness portion of one surface of the steel strip (sheet) within a range of Equation (2): 0.007−([N]−14/48×[Ti])≦ΔN≦[solAl]×14/27−([N]−14/48×[Ti])+0.0025  Equation (1) |σN1−σN2|/ΔN≦0.35  Equation (2)

摘要翻译： 将包含预定成分的晶粒取向电工钢板坯加热至1280℃以上，抑制物质的固溶温度以上，热轧，退火，冷轧后，进行脱碳退火，将其在条带运行中氮化 状态，涂覆退火分离剂，并且在热轧后使NN作为AlN的析出比为20％以下进行最终退火，使一次再结晶的平均粒径为7μm〜小于20μm，并使氮增加 在等式（1）的范围内的氮化中的ΔN和在钢带（片材）的一个表面的20％厚度部分的氮含量σigmaN1和σN2（前后质量％）在等式（2）的范围内 ）：<？in-line-formula description =“In-line Formulas”end =“lead”？> 0.007 - （[N] -14 / 48x [Ti]）<= DeltaN <= [solAl] x14 / （[N] -14 / 48x [Ti]）+ 0.0025等式（1）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formul ae description =“In-line Formulas”end =“lead”？> | sigmaN1-sigmaN2 | / DeltaN <= 0.35等式（2）<？in-line-formula description =“In-line Formulas”end =“tail” ？>

公开(公告)号：US07377986B2

公开(公告)日：2008-05-27

申请号：US11494369

申请日：2006-07-27

申请人： Jerry W. Schoen ,  Robert J. Comstock, Jr.

发明人： Jerry W. Schoen ,  Robert J. Comstock, Jr.

IPC分类号： H01F1/147 ,  H01F1/16

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。

公开(公告)号：US20050000596A1

公开(公告)日：2005-01-06

申请号：US10436571

申请日：2003-05-14

申请人： Jerry Schoen ,  Robert Comstock

发明人： Jerry Schoen ,  Robert Comstock

IPC分类号： C21D8/12 ,  H01F1/16 ,  H01F1/147

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，耐脆性，喷嘴堵塞和磁化老化的无取向电工钢的制造方法。含铬轴承钢由铸造成薄的钢熔体制成 板坯或常规板坯，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。

公开(公告)号：US5759294A

公开(公告)日：1998-06-02

申请号：US735896

申请日：1996-10-23

申请人： Fritz Bolling ,  Andreas Bottcher ,  Manfred Espenhahn ,  Christof Holzapfel

发明人： Fritz Bolling ,  Andreas Bottcher ,  Manfred Espenhahn ,  Christof Holzapfel

IPC分类号： B21B1/26 ,  C21D1/78 ,  C21D3/04 ,  C21D8/12 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/16 ,  H01F1/16 ,  H01F1/04

CPC分类号： C22C38/02 ,  C21D8/1205 ,  C21D8/1222 ,  C21D8/1261 ,  C21D3/04 ,  C21D8/1233

摘要： A process for the production of grain oriented magnetic steel sheets having improved remagnetization losses consisting essentially of (in % by weight) more than 0.005% to 0.10% C, 2.5 to 6.5% Si, 0.03 to 0.15% Mn, 0.010 to 0.050% S, 0.010 to 0.035% Al, 0.0045 to 0.0120% N, and 0.020 to 0.300% Cu, and up to 0.15% Sn, the balance being iron and inevitable impurities. The process includes continuous casting or strip casting slabs with the above composition.

摘要翻译： 一种生产具有改善的再磁化损失的基本上由（0.005重量％以上）重量％，C：2.5〜6.5％，Si：0.03〜0.15％，Mn：0.010〜0.050％S， ，0.010〜0.035％的Al，0.0045〜0.0120％的N，以及0.020〜0.300％的Cu，至少为0.15％的Sn，余量为铁和不可避免的杂质。 该方法包括具有上述组成的连续铸造或带钢铸造板坯。

公开(公告)号：US5653821A

公开(公告)日：1997-08-05

申请号：US481353

申请日：1995-07-07

申请人： Gyu Seung Choi ,  Chung San Lee ,  Jong Soo Woo ,  Byung Deug Hong

发明人： Gyu Seung Choi ,  Chung San Lee ,  Jong Soo Woo ,  Byung Deug Hong

IPC分类号： C21D3/04 ,  C21D8/12 ,  C22C38/02 ,  H04N7/50 ,  H01F1/04

CPC分类号： C22C38/02 ,  C21D8/1205 ,  H04N19/107 ,  H04N19/114 ,  H04N19/177 ,  H04N19/179 ,  H04N19/61 ,  H04N19/87 ,  C21D3/04 ,  C21D8/1266

摘要： A method for manufacturing an oriented electrical steel sheet includes the step of preparing a steel slab composed of in weight %: 0.035-0.050% of C, 2.9-3.3% of Si, less than 0.016% of P, 0.011-0.017% of soluble Al, 0.0080-0.012% of N, less than 0.007% of S, 0.06-0.18% of Ni+Cr, less than 0.32% of Mn with an Mn/S ratio of 20 or more, less than 0.6% of Cu with a Cu/Mn ratio of 1.5 or more, and balance of Fe and other inevitable impurities. The steel slab is heated at a temperature of 1250.degree.-1320.degree. C., and then hot rolled. The hot rolled slab is then cold rolled in two stages to a final sheet thickness, with a decarburization annealing being carried out at an intermediate thickness. The decarburized cold rolled sheet is coated with an annealing separator containing MgO as the main ingredient and then a finish annealing treatment is conducted, thereby obtaining a magnetically superior oriented electrical steel sheet.

摘要翻译： PCT No.PCT / KR94 / 00160 Sec。 371日期：1995年7月7日 102（e）日期1995年7月7日PCT 1994年11月9日PCT PCT。 WO95 / 13401 PCT出版物 日期：1995年5月18日一种取向电工钢板的制造方法，其特征在于，制造钢板的重量％：C：0.035〜0.050％，Si：2.9-3.3％，P：0.016％以下，0.011〜 0.017％的可溶性Al，0.0080-0.012％的N，小于0.007％的S，0.06-0.18％的Ni + Cr，小于0.32％的Mn，Mn / S比为20以上，小于0.6％ 的Cu / Mn比为1.5以上，余量为Fe等不可避免的杂质。 钢坯在1250〜-1320℃的温度下加热，然后热轧。 然后将热轧板坯分两个阶段冷轧至最终的板厚，进行中间厚度的脱碳退火。 将脱碳冷轧板涂布有以MgO为主成分的退火分离体，进行最终退火处理，得到磁性优良的取向电工钢板。

公开(公告)号：US4391587A

公开(公告)日：1983-07-05

申请号：US340673

申请日：1982-01-19

申请人： Tadashi Murakami ,  Toshikatsu Kishida

发明人： Tadashi Murakami ,  Toshikatsu Kishida

IPC分类号： C21D8/12 ,  C21D9/00 ,  F27B9/20 ,  F27D3/02 ,  F27B9/00 ,  F27D3/00

CPC分类号： F27D3/02 ,  F27B9/201 ,  C21D8/1205 ,  C21D9/0081

摘要： In a slab heating furnace of walking beam- or pusher-type, particularly for the heating of steel prior to the hot working of the steel, skid beams are supported by water-cooled posts. In order to reduce the number of the water-cooled posts from that in the prior art, a post head having a trough shaped portion is stationarily located on each of the posts. The length of the post head is longer than the outer diameter of the post provided with said post head. The total withdrawal of heat from heated steel to all of the post heads is considerably small, because the number of posts is reduced from that of the prior art due to the structure of the post heads. The posts are preferably arranged in a zigzag pattern.

摘要翻译： 在采用步进式或推杆式的板式加热炉中，特别是在钢的热加工前对钢的加热，防滑梁由水冷柱支撑。 为了减少现有技术的水冷柱的数量，具有槽形部分的柱头固定地位于每个柱上。 柱头的长度比设置有所述柱头的柱的外径长。 由于柱头的结构，由于从现有技术的柱子的数量减少，从热钢到所有柱头的总的热量相当小。 柱优选地以锯齿形图案布置。

公开(公告)号：US4202711A

公开(公告)日：1980-05-13

申请号：US952313

申请日：1978-10-18

申请人： Martin F. Littmann ,  Allan R. Obman

发明人： Martin F. Littmann ,  Allan R. Obman

IPC分类号： C21D8/12 ,  H01F1/04

CPC分类号： C21D8/1205 ,  C21D8/1244

摘要： A process for producing grain oriented silicon iron from strand cast slabs having uniformly high permeability and low core loss, comprising the steps of melting and refining a ferrous charge to obtain a melt containing critical ranges of carbon, manganese, sulfur and/or selenium and critically low levels of nitrogen, aluminum, and titanium, casting to a slab thickness of about 125 to about 225 mm, reheating the slabs to about 1330.degree. to about 1400.degree. C., hot rolling, annealing at about 925.degree. to about 1050.degree. C., cold rolling in two stages with an intermediate anneal to final thickness, decarburizing, and subjecting the material to a final anneal in a hydrogen-containing reducing atmosphere to effect secondary recrystallization.

摘要翻译： 一种具有均匀高渗透性和低铁损的钢绞线铸造板坯生产晶粒取向硅铁的方法，包括以下步骤：将亚铁装料熔炼和精炼，以获得含有关键范围的碳，锰，硫和/或硒的熔体， 低水平的氮，铝和钛，铸造至约125至约225mm的板坯厚度，将板坯再加热至约1330℃至约1400℃，热轧，约925℃至约1050℃的退火 在两个阶段进行冷轧，中间退火至最终厚度，脱碳，并在含氢还原气氛中对材料进行最终退火，以进行二次再结晶。

公开(公告)号：US4088513A

公开(公告)日：1978-05-09

申请号：US686664

申请日：1976-05-14

申请人： Kichi Nakazawa ,  Masafumi Okamoto ,  Kiyoshi Tanaka ,  Tadashi Sakazaki

发明人： Kichi Nakazawa ,  Masafumi Okamoto ,  Kiyoshi Tanaka ,  Tadashi Sakazaki

IPC分类号： H01F1/16 ,  C21D1/00 ,  C21D8/12 ,  C21D9/00 ,  C21D9/46 ,  F27B7/38 ,  F27B9/20 ,  H01F1/04

CPC分类号： C21D8/1205 ,  C21D9/0081 ,  F27B7/38 ,  F27B9/201

摘要： A method for treating a steel slab containing 2.5 to 4% Si to a temperature not lower than 1260.degree. C. in a continuous heating furnace of the walking-beam type, comprising; charging the slabs into the continuous heating furnace through its charge inlet, transferring the slabs by means of walking-beams in the furnace with the rear end of a preceding slab substantially contacting a front end of a subsequent slab under the condition that the contact time of the slab with fixed beams is not more than three times longer than the contact time of the slab with the transfer beams, and separating the adjacent slabs with a space sufficient to permit remelting of solidified slag adhered between the adjacent slabs approaching the extraction outlet of the furnace.

摘要翻译： 一种在步进梁型连续加热炉中处理含有2.5〜4％Si至不低于1260℃的钢坯的方法，包括： 将板坯通过其充电入口装入连续加热炉中，通过在炉中的步进梁将板坯转移到前板的后端，基本上接触后续板坯的前端，条件是接触时间 具有固定梁的板坯不超过具有传输梁的板坯的接触时间的三倍以上，并且具有足够的空间来分隔相邻的板坯，以使得粘附在邻近板坯的相邻板坯之间的固化炉渣重熔 炉。

公开(公告)号：US4014717A

公开(公告)日：1977-03-29

申请号：US613956

申请日：1975-09-16

申请人： Mario Barisoni ,  Massimo Barteri ,  Roberto Ricci Bitti ,  Pietro Brozzo ,  Edmondo Marianeschi

发明人： Mario Barisoni ,  Massimo Barteri ,  Roberto Ricci Bitti ,  Pietro Brozzo ,  Edmondo Marianeschi

IPC分类号： H01F1/16 ,  C21D8/12 ,  C22C38/02 ,  H01F1/04

CPC分类号： C22C38/02 ,  C21D8/1205 ,  C21D8/1261 ,  C21D8/1233

摘要： A process for the production of oriented-grain high magnetic permeability steel sheet including the steps of continuously casting a steel slab haing a weight % composition within the range of 2.5-3.5 Si, 0.01-0.04 S, less than 0.07 C, less than 0.15 Mn, and an acid-soluble aluminum in an amount between 0.01 and 0.05, at a feed rate ranging from 700 to 1000 kg/minute, into an ingot mold of a length over 1200 mm and cooling it in said ingot mold with a quantity of water ranging from 2.8 to 4 m.sup.3 per ton of steel; heating the slab so obtained to 1300.degree.-1400.degree. C and immediately thereafter hot-rolling it to a thickness in the range between 2 and 3.1 mm, annealing the strip so obtained at a temperature in the range between 1050.degree. and 1150.degree. C, keeping it at this temperature for a duration between 5 and 30 seconds; cooling it at any desired cooling rate to 750.degree.-850.degree. C at a temperature at which austenite is still present in it; keeping the strip at this temperature for a duration ranging from 30 to 200 seconds; and finally quenching it from the initial quenching temperature of 400.degree. C at a cooling rate of between 10.degree. C/second and 100.degree. C/second; cold-rolling the strip so obtained with a reduction rate ranging from 80 to 90% and subjecting it finally to the decarburization and recrystallization annealing operations as well as to other final anneals.

摘要翻译： 一种生产定向晶粒高磁导率钢板的方法，包括以2.5-3.5Si，0.01-0.04S，小于0.07C，小于0.15的范围内连续铸造重量％组成的钢坯的步骤 Mn和0.01〜0.05的酸溶性铝，以700〜1000kg /分钟的速度进料到长度超过1200mm的锭模中，并在所述铸锭模具中用一定量的 每吨钢水2.8〜4立方米; 将得到的板坯加热到1300〜-1400℃，然后将其热轧至2〜3.1mm的厚度，在1050℃〜1150℃的温度范围内退火， 在此温度下保持5至30秒; 在奥氏体还存在的温度下以任意所需的冷却速度将其冷却至750-850℃; 将条带在该温度下保持30至200秒的持续时间; 最终从初始淬火温度400℃以10℃/秒〜100℃/秒的冷却速度淬火; 将所得到的带材以80-90％的压缩率冷轧，最后进行脱碳和再结晶退火操作以及其他最终退火。