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1. 发明授权

US5711825A Process for the production of grain oriented magnetic steel sheets having improved remagnetization losses 失效
标题翻译：制造具有改善的再磁化损失的晶粒取向磁性钢板的方法
公开(公告)号：US5711825A
公开(公告)日：1998-01-27
申请号：US222627
申请日：1994-04-04
申请人： Fritz Bolling , Andres Bottcher , Manfred Espenhahn , Christof Holzapfel
发明人： Fritz Bolling , Andres 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
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 comprises through-heating slabs containing more than 0.005% 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, the balance being iron and residual impurities, to a temperature which is lower than the solubility temperature T.sub.1 of magnesium sulfide and higher than the solubility temperature T.sub.2 of copper sulfide, T.sub.1 and T.sub.2 being dependent on the silicon content. The through-heated slabs are then hot roughed, followed by hot finish rolling at an initial temperature of at least 960.degree. C. and a final rolling temperature of 880.degree. C. to 1,000.degree. C., to produce a hot rolled strip having a thickness in the range of 1.5 to 7 mm. During this last step, at least 60% of the total nitrogen content precipitates in the form of coarse AlN particles. Thereafter, the hot rolled strips are annealed at temperature of 880.degree. C. to 1,150.degree. C., followed by cooling at a cooling rate higher than 15 .degree. K./sec to induce further precipitation of AlN and copper sulfide particles. Thereafter the strip is cold rolled in one or more cold rolling stages to a final strip thickness of 0.1 mm to 0.5 mm, subjected to recrystallization and decarburization annealing in a wet atmosphere containing H.sub.2 and N.sub.2. A separating agent containing mainly MgO is then applied to both surfaces of the strip. The strip is then high temperature annealed, an insulating coating is applied and the strip is subjected to a final annealing.
摘要翻译：晶粒取向电磁钢板的制造方法包括通过加热板坯，其含有超过0.005％的C，2.5〜6.5％的Si，0.03〜0.15％的Mn，0.010〜0.050％的S，0.010〜0.035％的Al，0.0045〜0.0120 ％N，0.020〜0.300％的Cu，余量为铁和残留杂质，至低于硫化镁的溶解温度T1的温度，高于硫化铜的溶解度温度T2，T1和T2取决于硅含量。然后将通过热轧的板坯进行热轧，然后在初始温度为至少960℃，最终轧制温度为880℃至1000℃下进行热精轧，以生产具有厚度在1.5至7毫米的范围内。在最后一步中，总氮含量的至少60％以粗AlN颗粒的形式沉淀。此后，将热轧带材在880℃至1150℃的温度下退火，然后以高于15℃/秒的冷却速率冷却，以引起AlN和硫化铜颗粒的进一步沉淀。此后，将带材在一个或多个冷轧阶段中冷轧至最终带材厚度为0.1mm至0.5mm，在含有H 2和N 2的湿气氛中进行重结晶和脱碳退火。然后将主要含有MgO的分离剂施加到条的两个表面。然后将带材进行高温退火，施加绝缘涂层，并对带材进行最终退火。

2. 发明授权

US5759294A Process for the production of grain oriented magnetic steel sheets having improved remagnetization losses 失效
标题翻译：制造具有改善的再磁化损失的晶粒取向磁性钢板的方法
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。

3. 发明授权

US5863356A Method for producing electric sheets with a glass coating 失效
标题翻译：一种用玻璃涂层制作电工板的方法
公开(公告)号：US5863356A
公开(公告)日：1999-01-26
申请号：US704579
申请日：1996-10-03
申请人： Fritz Bolling , Brigitte Hammer , Thomas Dolle , Klaus Gehnen , Heiner Schrapers
发明人： Fritz Bolling , Brigitte Hammer , Thomas Dolle , Klaus Gehnen , Heiner Schrapers
IPC分类号： C23C22/00 , C21D1/70 , C21D8/12 , C21D9/46 , C22F1/00 , C22F1/10 , C23D5/02 , H01F1/16 , H01F1/18
CPC分类号： H01F1/18 , C21D8/1283 , C22F1/00 , C22F1/10 , C23D5/02
摘要： The invention comprises a method for producing electric sheets, in particular grain-oriented electric sheets, with an evenly well-adhering glass film and with improved magnetic properties, in which the hot rolled strip which is produced at first and is optionally annealed is cold-rolled up to an end thickness in one or several steps, thereafter an annealing separator is applied to the strip which is rolled up to the end thickness, and is dried, and therafter the cold strip thus coated is subjected to high-temperature annealing, with an important component of the annealing separator being a hydrous magnesium oxide (MgO) dispersion and the annealing separator being additionally provided with at least one additive. The characterizing feature of the invention is that a finely dispersed water-soluble sodium phosphate compound is used as at least one additive.
摘要翻译： PCT No.PCT / EP95 / 01020 Sec。 371日期：1996年10月3日 102（e）日期1996年10月3日PCT 1995年3月18日PCT PCT。公开号WO95 / 25820 PCT 日期1995年9月28日本发明涉及一种生产电动片，特别是晶粒取向电动片，具有均匀良好粘附的玻璃膜和改进的磁性能的方法，其中首先制造的热轧带材是任选退火的钢板以一个或多个步骤冷轧至端部厚度，然后将退火分离器施加到卷起至端部厚度的条上，并将其干燥，并将经过涂覆的冷轧带材经受高温退火分离器的重要组分是含水氧化镁（MgO）分散体，退火分离剂另外具有至少一种添加剂。本发明的特征在于，使用细分散的水溶性磷酸钠化合物作为至少一种添加剂。

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