公开(公告)号：US4543134A

公开(公告)日：1985-09-24

申请号：US667743

申请日：1984-11-02

申请人： Osamu Tanaka ,  Shozaburo Nakashima ,  Takashi Nagano ,  Tomoji Kumano ,  Yoshitaka Hiromae

发明人： Osamu Tanaka ,  Shozaburo Nakashima ,  Takashi Nagano ,  Tomoji Kumano ,  Yoshitaka Hiromae

IPC分类号： C23C22/00 ,  C21D1/68 ,  C21D1/70 ,  C21D8/12 ,  C21D9/46 ,  H01F1/16 ,  H01F1/18 ,  H01F1/04

CPC分类号： H01F1/18 ,  C21D1/70 ,  C21D8/1283 ,  C23D5/10

摘要： The present invention provides an annealing separator comprising from 0.05 to 2.0 parts by weight of antimony sulfate based on 100 parts by weight of magnesium oxide, and at least one chloride selected from the group consisting of Sb, Sr, Ti, and Zr chlorides in a chlorine amount of from 5 to 20% by weight based on 100% of the chloride and antimony sulfate, and occasionally comprises Ti oxide in an amount of from 0.5 to 10 parts.The annealing separator is applied on the decarburization annealed strip, and improves both the magnetic properties and properties of glass film, in the production of a grain-oriented electrical steel sheet.

摘要翻译： 本发明提供一种退火分离剂，其包含0.05至2.0重量份的硫酸锑，基于100重量份的氧化镁和至少一种选自Sb，Sr，Ti和Zr的氯化物，其中 氯量为5〜20重量％，基于氯化物和硫酸锑的100％，有时含有0.5〜10重量份的Ti氧化物。 在取向电工钢板的制造中，将退火分离剂涂布在脱碳退火带上，提高玻璃膜的磁特性和性能。

公开(公告)号：US3956029A

公开(公告)日：1976-05-11

申请号：US475266

申请日：1974-05-31

申请人： Takaaki Yamamoto ,  Osamu Tanaka ,  Hirotada Katoh ,  Shozaburo Nakashima

发明人： Takaaki Yamamoto ,  Osamu Tanaka ,  Hirotada Katoh ,  Shozaburo Nakashima

IPC分类号： H01F1/18 ,  C01F5/06 ,  C21D1/70 ,  C21D9/46 ,  C23C24/00 ,  B23K35/24

CPC分类号： C21D1/70 ,  C01F5/06 ,  C23C24/00 ,  C01P2004/61 ,  C01P2006/12

摘要： Annealing separator for heat treatment of a silicon steel sheet comprising not more than 0.2% SO.sub.3, not more than 0.04% Cl with the balance being MgO and unavoidable impurities, and having a bulk density between 0.18 and 0.30 g/cm.sup.3, and a particle size distribution of 40 to 70% of particles not larger than 3.mu.m, 10 to 25% of particles not smaller than 10.mu.m, not more than 15% of coarse particles larger than 15.mu.m with the balance being intermediate particles between 3.mu.m and 10.mu.m.

摘要翻译： 一种用于热处理硅钢板的退火分离器，其包含不超过0.2％的SO 3，不超过0.04％的Cl，余量为MgO和不可避免的杂质，堆积密度为0.18-0.30g / cm3，粒度 分布40〜70％的不大于3μm的颗粒，10-25％的不小于10μm的颗粒，不超过15μm的粗颗粒大于15μm，余量为3μm之间的中间颗粒 m和10亩。

公开(公告)号：US4992114A

公开(公告)日：1991-02-12

申请号：US324602

申请日：1989-03-16

申请人： Shozaburo Nakashima ,  Katsuro Kuroki ,  Koji Yamasaki

发明人： Shozaburo Nakashima ,  Katsuro Kuroki ,  Koji Yamasaki

IPC分类号： C21D8/12 ,  C22C38/02

CPC分类号： C21D8/1261 ,  C22C38/02 ,  C21D8/1255 ,  C21D8/1283 ,  C21D8/1288

摘要： The present invention provides a grain-oriented electrical steel sheet having a thickness of up to 0.17 mm and excellent product magnetic characteristics. The present invention is characterized in that a silicon containing acid-soluble Al, N and Sn is used as the starting material, the N and acid-soluble Al contents in the slab are adjusted to 0.0050 to 0.0100% and {(27/14).times.N (%)+0.0035} to {(27/14).times.N (%)+0.0100}%, respectively, the thickness of the hot-rolled sheet is adjusted so that the thickness reduction ratio at the one-stage cold-rolling is 85 to 92%, and the Nas AlN content in the hot-rolled steel sheet is controlled to 0.0005 to 0.0020%.

公开(公告)号：US4753692A

公开(公告)日：1988-06-28

申请号：US876653

申请日：1986-06-17

申请人： Katsuro Kuroki ,  Toshiya Wada ,  Shozaburo Nakashima

发明人： Katsuro Kuroki ,  Toshiya Wada ,  Shozaburo Nakashima

IPC分类号： C22C38/00 ,  C21D8/12 ,  C22C38/02 ,  H01F1/16 ,  H01F1/18 ,  H01F1/04

CPC分类号： C21D8/12 ,  C22C38/02 ,  H01F1/18 ,  C21D8/1233 ,  C21D8/1266

摘要： In a grain-oriented electromagnetic steel sheet which is produced by a process including a cold-rolling step(s), the final reduction ratio of the cold-rolling step(s) being high, a technical means for refining the secondary recrystallized grains is particularly important. One technical means is the incorporation of tin into silicon steel material. This, however, involves a problem because tin incorporated into silicon steel material deteriorates the surface coating which imparts tension to a grain-oriented electromagnetic steel sheet.The incorporation of copper into silicon steel material has been avoided since it causes secondary recrystallization to be unstable.The present invention is characterized by the combined incorporation of tin and copper into molten steel so as to simultaneously refine the secondary recrystallized grains and to form a good surface coating. The grain-oriented electromagnetic steel sheet of the present invention contains from 2.5% to less than 4.0% of silicon, from 0.03% to 0.15% of manganese, from 0.03% to 0.5% of tin, and from 0.02% to less than 0.3% of copper.

摘要翻译： 在通过包括冷轧步骤的工艺生产的晶粒取向电磁钢板中，冷轧步骤的最终压下率高，用于精炼二次再结晶晶粒的技术手段是 特别重要。 一种技术手段是将锡掺入硅钢材料中。 然而，这涉及到一个问题，因为掺入硅钢材料中的锡劣化了向晶粒取向电磁钢板施加张力的表面涂层。 已经避免了将铜掺入硅钢材料中，因为它导致二次再结晶不稳定。 本发明的特征在于将锡和铜组合并入钢水中，以同时精炼二次再结晶晶粒并形成良好的表面涂层。 本发明的晶粒取向电磁钢板含有2.5％〜4.0％的硅，0.03％〜0.15％的锰，0.03〜0.5％的锡，0.02％以上且小于0.3％ 的铜。

公开(公告)号：US4948433A

公开(公告)日：1990-08-14

申请号：US268404

申请日：1988-11-08

申请人： Shozaburo Nakashima ,  Katsuro Kuroki ,  Kiyoshi Ueno

发明人： Shozaburo Nakashima ,  Katsuro Kuroki ,  Kiyoshi Ueno

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

CPC分类号： C21D8/1233 ,  C22C38/02

摘要： Disclosed is a process for preparing a thin grain oriented electrical steel sheet having a final thickness of 0.05 to 0.25 mm from a silicon steel slab comprising 0.050 to 0.120% by weight of C, 2.8 to 4.0% by weight of Si and 0.05 to 0.25% by weight of Sn, wherein the starting silicon slab further comprises up to 0.035% by weight of S and 0.005 to 0.035% by weight of Se, with the proviso that the total amount of S and Se is in the range of 0.015 to 0.060% by weight, 0.050 to 0.090% by weight of Mn, with the proviso that the Mn content is in the range of {1.5.times.[content (% by weight) of S+content (% by weight) of Se[} to {4.5.times.[content (% by weight) of S+content (% by weight) of Se[} % by weight, 0.0050 to 0.0100% by weight of N, and {[27/14].times.content (% by weight) of N+0.0030} to {[27/14].times.content (% by weight) of N+0.0150} % by weight of acid-soluble Al.

公开(公告)号：US4225366A

公开(公告)日：1980-09-30

申请号：US75673

申请日：1979-09-13

申请人： Jirou Harase ,  Shozaburo Nakashima ,  Yasukazu Mori

发明人： Jirou Harase ,  Shozaburo Nakashima ,  Yasukazu Mori

IPC分类号： C22C38/00 ,  C21D1/76 ,  C21D8/12 ,  C21D9/46 ,  H01F1/16 ,  H01F1/04

CPC分类号： C21D9/46 ,  C21D1/76 ,  C21D8/1272

摘要： A grain oriented electrical silicon steel sheet containing aluminium and having an extremely high magnetic flux density, for example, a B8 of 1.90 or more, is produced by a secondary recrystallization annealing operation in which, during the period of elevating the temperature of a reducing atmosphere to a level within a range of from 850.degree. to 950.degree. C., the partial pressure of nitrogen in the reducing atmosphere is limited to 20% or less based on the entire pressure of the reducing atmosphere, and during the period of elevating the temperature of the reducing atmosphere in which the secondary recrystallization is in progress, the partial pressure of nitrogen is maintained at a level of at least 3%.

摘要翻译： 通过二次再结晶退火操作制造含有铝的具有极高磁通密度的例如B8为1.90以上的晶粒取向电工硅钢板，其中在提高还原气氛的温度期间 在850〜950℃的范围内，还原气氛中的氮分压基于还原气氛的整个压力被限制在20％以下，在升温期间 的继续二次再结晶的还原气氛中，氮的分压保持在3％以上的水平。

公开(公告)号：US5141573A

公开(公告)日：1992-08-25

申请号：US604357

申请日：1990-10-26

申请人： Shozaburo Nakashima

发明人： Shozaburo Nakashima

IPC分类号： C21D8/12 ,  C22C38/00 ,  C22C38/02 ,  C22C38/60 ,  H01F1/16

CPC分类号： H01F1/16 ,  C21D8/1294 ,  C22C38/02 ,  C21D8/1288

摘要： An electrical steel sheet having a very small watt loss can be provided by improving the conventional magnetic domain-controlling treatment. Namely, a high-flux density, grain-oriented electrical steel sheet having a superior watt loss characteristic and a flux density of at least 1.88 T at a magnetizing force of 800 A/m, which comprises, as the steel sheet components, up to 0.0030% by weight of C, 2.8 to 4.5% by weight of Si, 0.045 to 0.100% by weight of Mn, up to 0.0050% by weight of one or two elements selected from the group consisting of S and Se, up to 0.0050% by weight of Al, up to 0.0030% by weight of N, 0.03 to 0.25% by weight of Sn, 0.35 to 2.0% by weight of Ni and if necessary, 0.03 to 0.08% by weight of Cu, with the balance consisting of Fe and unavoidable impurities, wherein a tension coating is formed on the surface of a steel sheet and after the secondary recrystallization, the surface of the steel sheet is subjected to an artificial magnetic domain-controlling treatment in a direction substantially orthogonal to the rolling direction, and a process for the preparation of this steel sheet, are disclosed.

摘要翻译： 可以通过改进常规的磁畴控制处理来提供具有非常小瓦特损耗的电工钢板。 即，磁通密度为800A / m的磁通密度高的晶粒取向电工钢板，具有优异的瓦特特性，磁通密度为1.88T以上，其中，作为钢板部件，最高为 0.0030重量％的C，2.8〜4.5重量％的Si，0.045〜0.100重量％的Mn，最多0.0050重​​量％的选自S和Se的一种或两种元素，至多0.0050％ 的Al，至多0.0030重量％的N，0.03〜0.25重量％的Sn，0.35〜2.0重量％的Ni，如果需要，为0.03〜0.08重量％的Cu，余量由Fe 和不可避免的杂质，其中在钢板的表面上形成张力涂层，并且在二次再结晶之后，对钢板的表面进行与轧制方向大致正交的方向的人造磁畴控制处理， 公开了制备该钢板的方法。

公开(公告)号：US5066343A

公开(公告)日：1991-11-19

申请号：US520109

申请日：1990-05-07

申请人： Shozaburo Nakashima ,  Kenzo Iwayama ,  Isao Iwanaga

发明人： Shozaburo Nakashima ,  Kenzo Iwayama ,  Isao Iwanaga

IPC分类号： C21D8/12 ,  C22C38/00 ,  C22C38/02

CPC分类号： C21D8/1233 ,  C21D8/1211

摘要： Disclosed is a process for preparing a thin grain oriented electrical steel sheet having a final thickness of 0.05 to 0.25 mm from a silicon steel cast strip having a thickness of 0.2 to 5 mm and directly obtained from the molten steel by the synchronous continuous casting machine, in which the speed of movement of the strand relative to the inner wall surface of the casting mold is the same, and by which the traditional hot rolling process can be omitted, comprising 0.050 to 0.120% by weight of C, 2.8 to 4.0% by weight of Si and 0.05 to 0.25% by weight of Sn, wherein the starting silicon cast strip further comprises up to 0.035% by weight of S and 0.005 to 0.035% by weight of Se, with the proviso that the total amount of S and Se is in the range of 0.015 to 0.060% by weight, 0.050 to 0.090% by weight of Mn, with the proviso that the Mn content is in the range of {1.5.times.[content (% by weight) of S+content (% by weight) of Se]} to {4.5.times.[content (% by weight) of S+content (% by weight) of Se]} % by weight, 0.0050 to 0.0100% by weight of N, and {[27/14].times.content (% by weight) of N+0.0030} to {[27/14].times.content (% by weight) of N+0.0150} % by weight of acid-soluble Al.

公开(公告)号：US4863532A

公开(公告)日：1989-09-05

申请号：US179530

申请日：1988-04-08

申请人： Katsuro Kuroki ,  Toshiya Wada ,  Shozaburo Nakashima

发明人： Katsuro Kuroki ,  Toshiya Wada ,  Shozaburo Nakashima

IPC分类号： C22C38/00 ,  C21D8/12 ,  C22C38/02 ,  H01F1/16 ,  H01F1/18

CPC分类号： C21D8/12 ,  C22C38/02 ,  H01F1/18 ,  C21D8/1233 ,  C21D8/1266

摘要： In a grain-oriented electromagnetic steel sheet which is produced by a process including a cold-rolling step(s), the final reduction ratio of the cold-rolling step(s) being high, a technical means for refining the secondary recrystallized grains is particularly important. One technical means is the incorporation of tin into silicon steel material. This, however, involves a problem because tin incorporated into silicon steel material deteriorates the surface coating which imparts tension to a grain-oriented electromagnetic steel sheet.The incorporation of copper into silicon steel material has been avoided since it causes secondary recrystallization to be unstable.The present invention is characterized by the combined incorporation of tin and copper into molten steel so as to simultaneously refine the secondary recrystallized grains and to form a good surface coating. The grain-oriented electromagnetic steel sheet of the present invention contains from 2.5% to less than 4.0% of silicon, from 0.03% to 0.15% of manganese, from 0.03% to 0.5% of tin, and from 0.02% to less than 0.3% of copper.

摘要翻译： 在通过包括冷轧步骤的工艺生产的晶粒取向电磁钢板中，冷轧步骤的最终压下率高，用于精炼二次再结晶晶粒的技术手段是 特别重要。 一种技术手段是将锡掺入硅钢材料中。 然而，这涉及到一个问题，因为掺入硅钢材料中的锡劣化了向晶粒取向电磁钢板施加张力的表面涂层。 已经避免了将铜掺入硅钢材料中，因为它导致二次再结晶不稳定。 本发明的特征在于将锡和铜组合并入钢水中，以同时精炼二次再结晶晶粒并形成良好的表面涂层。 本发明的晶粒取向电磁钢板含有2.5％〜4.0％的硅，0.03％〜0.15％的锰，0.03〜0.5％的锡，0.02％以上且小于0.3％ 的铜。

公开(公告)号：US4806176A

公开(公告)日：1989-02-21

申请号：US381877

申请日：1982-05-25

申请人： Jiro Harase ,  Katsuro Kuroki ,  Toshiya Wada ,  Shozaburo Nakashima

发明人： Jiro Harase ,  Katsuro Kuroki ,  Toshiya Wada ,  Shozaburo Nakashima

IPC分类号： C22C38/00 ,  C21D8/12 ,  C21D9/46 ,  H01F1/16

CPC分类号： C21D8/1261 ,  C21D8/1233

摘要： The present invention relates to an improvement in the precipitation annealing of a hot-rolled steel sheet or strip which is carried out immediately before cold-rolling in the production of a grain-oriented electromagnetic steel sheet or strip. Conventionally, precipitation annealing is carried out by heating a steel strip to a temperature of from 750.degree. to 1200.degree. C. and then quenching it. The present invention proposes to control the cooling rate during primary cooling, i.e. from a holding temperature (T.sub.1 temperature) of from 1080.degree. to 1200.degree. C. down to an intermediate temperature (T.sub.2 temperature) of from 900.degree. to 980.degree. C., and to control the staying time during primary cooling so that excellent magnetic properties can be obtained regardless of the unavoidable variation in the Al and Si content. The present invention also proposes to control the rate of temperature elevation between 800.degree. C. and the holding temperature as to obtain AlN particles having an optimum size.

摘要翻译： 本发明涉及在生产面向电磁钢板或条带的冷轧之前进行的热轧钢板或钢带的析出退火的改进。 通常，通过将钢带加热至750℃至1200℃的温度进行沉淀退火，然后淬火。 本发明提出了控制一次冷却期间的冷却速度，即从保持温度（T1温度）为1080℃至1200℃，直到900℃至980℃的中间温度（T2温度） 并且控制一次冷却中的停留时间，从而可以获得优异的磁特性，而不管Al和Si含量的不可避免的变化如何。 本发明还提出了控制800℃和保持温度之间的升温速率以获得具有最佳尺寸的AlN颗粒。