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公开(公告)号：US08277573B2
公开(公告)日：2012-10-02
申请号：US12595659
申请日：2008-04-18
IPC分类号： H01F1/147
CPC分类号： C21D8/12 , C21D8/1255 , C21D8/1272 , C21D8/1283 , C22C38/008 , C22C38/02 , C22C38/16
摘要： A process for the production of a grain oriented magnetic strip, made of steel containing 2.3 to 5.0% of silicon, obtained by producing a hot-rolled sheet containing a distribution of second phases capable of controlling the secondary recrystallization by means of a two-step hot-rolling with an intermediate annealing, and by changing it into the final product.
摘要翻译： 一种生产含有2.3-5.0％硅的钢的晶粒取向磁条的制造方法，该方法是通过制备含有能够通过两步法控制二次再结晶的第二相分布的热轧板而获得的 通过中间退火进行热轧，并将其变成最终产品。
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公开(公告)号：US06325866B1
公开(公告)日：2001-12-04
申请号：US09331504
申请日：1999-06-22
IPC分类号： H01F104
CPC分类号： C21D8/1222 , C21D3/04 , C21D8/1205 , C21D8/1233 , C21D8/1255
摘要： A process for the production of grain oriented silicon steel sheet which provides an optimization of the production of conventional, grain oriented silicon steel strips, by the use of an appropriate synergistic combination of the composition levels of some elements and appropriate treatments which result in the control of the presence and type of inhibitors, and by so doing, controlling the primary-recrystallization grain size.
摘要翻译： 用于生产晶粒取向硅钢板的方法，其通过使用一些元素的组成水平和合适的处理的合适的协同组合提供常规的晶粒取向的硅钢带的生产的优化，这导致控制 的抑制剂的存在和类型，并且通过这样做，控制一次再结晶晶粒尺寸。
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公开(公告)号：US09328396B2
公开(公告)日：2016-05-03
申请号：US13532545
申请日：2012-06-25
CPC分类号： C21D8/1222 , B21B1/22 , C21D8/04 , C21D8/1244 , C21D8/1261 , C22C38/02 , C22C38/60 , H01F1/18 , H01F41/00
摘要： The present invention has as objective a procedure for the oriented-grain magnetic sheet that provides particular operative hot rolling mill conditions of silicon steel slabs, by means which it is possible to highly contain the heterogeneities of hot rolled sheet re-crystallization. The use of these operative conditions permits to reduce the growing tendency of the crystallized grain during the annealing of the sheets at a final thickness that precedes the secondary oriented re-crystallization. Contemporarily, the particular operational conditions of hot rolling mill according to the invention permit a fine precipitation of secondary phases useful to the control of the grain growing, starting from a quantity of sulphur (S) and nitrogen (N) in matrix lower than corresponding provided by the conventional technologies and consequently disposable in metallic solid solution before the rolling after the heating of the slabs at temperature values lower than 1300° C.
摘要翻译： 本发明的目的是提供一种能够高度包含热轧板再结晶的不均匀性的方法，其提供硅钢板的特定的工作热轧机条件的定向晶粒磁性片的方法。 这些操作条件的使用允许在第二定向重结晶之前的最终厚度的板退火期间减少结晶晶粒的生长趋势。 同时，根据本发明的热轧机的特定操作条件允许对于控制晶粒生长有用的次级相的精细沉淀，起始于低于相应提供的基体中的硫（S）和氮（N）的量 通过常规技术，并且在温度低于1300℃的板坯加热之前在轧制之前一次性处于金属固溶体中。
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4.发明授权公开(公告)号：US06471787B2
公开(公告)日：2002-10-29
申请号：US09331506
申请日：1999-06-22
IPC分类号： H01F104
CPC分类号： C21D8/1255 , C21D3/04 , C21D8/1222 , C21D8/1261
摘要： A process for the production of oriented-grain electrical steel sheet with high magnetic characteristics, and more precisely a process in which the slab obtained from continuous casting is continuously nitrided by a reaction between aluminium and nitrogen is described. Amount, size and distribution of precipitates are controlled, enabling a high-temperature continuous heat treatment during which the primary-recrystallization and a high-temperature nitriding are realized.
摘要翻译： 描述了具有高磁特性的定向晶粒电工钢板的制造方法，更准确地说，由连续铸造获得的板坯通过铝和氮之间的反应持续氮化。 控制析出物的量，大小和分布，实现一次再结晶和高温氮化的高温连续热处理。
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5.发明授权公开(公告)号：US06296719B1
公开(公告)日：2001-10-02
申请号：US09243000
申请日：1999-02-26
IPC分类号： C21D812
CPC分类号： C22C38/02 , B22D11/00 , C21D8/1211 , C21D8/1222 , C21D8/1255 , C21D8/1261 , C21D8/1272
摘要： In the production of high permeability electrical steel, the control of condition of thin slab continuous casting allows to obtain advantageous solidification structures and precipitates. This, in turn, allows to decritize the process for controlling the grain dimensions and to add nitrogen to the cold rolled sheet, such as to immediately form aluminum nitride.
摘要翻译： 在高磁导率电工钢的生产中，薄板连铸的条件控制可以获得有利的凝固结构和沉淀。 这反过来又允许对用于控制晶粒尺寸的过程进行分解，并将氮添加到冷轧板上，例如立即形成氮化铝。
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6.发明授权Process for the production of grain-oriented magnetic sheet starting from thin slab 有权从薄板开始生产晶粒取向磁性片的工艺公开(公告)号：US08871035B2
公开(公告)日：2014-10-28
申请号：US13129827
申请日：2009-11-18
CPC分类号： C21D8/1211 , C21D6/008 , C21D8/1222 , C21D8/1255 , C21D8/1272 , C21D9/46 , C21D2201/05 , C22C38/001 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/16
摘要： A process for producing grain oriented magnetic sheets by subjecting a steel slab ≦100 mm, containing 2.5-3.5% si, to the following operations: optional first heating, to a temperature T1≦1250° C.; first rough hot-rolling at T2 between 900 and 1200° C., the reduction ratio (% Rid) being at least 80% in the absence of a subsequent heating or, in the presence of a subsequent heating to T3≦1300° C., at least 60% determined by % Rid=80−(T3−T2)/5; second finishing hot-rolling at T4
摘要翻译： 通过对含有2.5-3.5％Si的钢坯和100l的钢板和nlE进行以下操作来制造晶粒取向磁性片的方法：可选的第一次加热至温度T1＆lt; 12℃; 1250℃。 首先在900〜1200℃之间的T2热轧，在不加热的情况下还原率（％Rid）为80％以上，或者随后加热至T3＆lt; 1300℃。 ，至少60％由％Rid = 80-（T3-T2）/ 5确定; 在T4 <1300℃下进行第二次热轧，轧制截面厚度为1.5±3.0mm; 在一个或多个阶段进行冷轧，可选择的中间退火和最后阶段应用的冷轧比率≥60％; 一次再结晶退火，任选在脱碳气氛中; 第二次再结晶退火。
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7.发明授权公开(公告)号：US07192492B2
公开(公告)日：2007-03-20
申请号：US10344300
申请日：2001-08-08
CPC分类号： C21D8/1233 , C21D8/1205 , C21D8/1222 , C21D8/1244 , C21D8/1255 , C21D8/1272
摘要： In the production of electrical steel strips, a special islab-reheating treatment before hot rolling is carried out so that the maximum temperature within the furnace is reached by the slab well before its extraction from the furnace. During the heating stage and performance at the highest temperatures of the thermal cycle, second phase particles are dissolved and segregated elements are distributed in the metallic matrix, while during cooling and temperature equalising steps of the slab in the furnace a controlled amount of small second phases particles are more homogeneously re-precipitated from the metallic matrix. Differently from all the conventional processes for the production of electrical steels, the slab reheating furnace become a site in which it is performed the precipitation of a controlled amount of second phases particles for the necessary grain growth control during the successive process steps.
摘要翻译： 在电钢带的生产中，进行热轧前的特殊的islab再加热处理，以便在从炉中提取之前，通过板坯达到炉内的最高温度。 在加热阶段和在热循环的最高温度下的性能，第二相颗粒被溶解并且偏析元素分布在金属基体中，而在炉中的板坯的冷却和温度均衡步骤期间受控量的小的第二相 颗粒从金属基体更均匀地再沉淀。 与用于生产电工钢的所有常规方法不同，板坯再加热炉成为在连续的工艺步骤期间进行控制量的第二相颗粒沉淀用于必要的晶粒生长控制的部位。
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公开(公告)号：US06893510B2
公开(公告)日：2005-05-17
申请号：US10450968
申请日：2001-12-17
CPC分类号： C21D8/1255 , C21D8/0426 , C21D8/0431 , C21D8/0436 , C21D8/1211 , C21D8/1272 , C21D2211/004
摘要： Process for the production of oriented grain electrical steel strips, in which a silicon steel, comprising at least 30 ppm of S, is directly cast as strip 1.5-4.5 mm thick and cold rolled to a final thickness of between 1.0 and 0.15 mm; characterised by the following staged: Cooling and deformation of the solidified strip to obtain a second phases distribution in which 600 cm−1
摘要翻译： 用于生产定向谷物电工钢带的方法，其中包含至少30ppm的S的硅钢直接铸造成1.5-4.5mm厚的条，并冷轧至1.0至0.15mm的最终厚度; 其特征在于以下阶段：固化条的冷却和变形以获得第二相分布，其中600cm -1≤I<1500cm -1，Iy = 1.9 Fv / r（cm -1），Fv是在低于800℃的温度下稳定的第二相的体积分数，r是沉淀物的平均半径，单位为cm; 在不低于750℃的温度下固化和卷绕带材之间的热轧，减压比为15至60％; 冷轧减速比为60-92％; 在氮化气氛下，在750-1100℃下进行冷轧带材退火，相对于带芯的初始组成，氮含量增加至少为30ppm。
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9.发明授权公开(公告)号：US06361621B1
公开(公告)日：2002-03-26
申请号：US09381105
申请日：1999-12-09
IPC分类号： H01F104
CPC分类号： C21D8/1222 , C21D8/1205 , C21D8/1255
摘要： The production of grain-oriented electrical steel sheets is disclosed wherein grain growth in the steel is inhibited by a method comprising the regulation of the content of sulfur and manganese in the steel strp and the cold rolled strip is continuously nitrided at high temperature.
摘要翻译： 公开了一种晶粒取向电工钢板的制造方法，其中通过在钢筋中调节硫和锰的含量的方法来抑制钢中的晶粒生长，并且冷轧带材在高温下连续氮化。
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公开(公告)号：US20100300583A1
公开(公告)日：2010-12-02
申请号：US12595659
申请日：2008-04-18
CPC分类号： C21D8/12 , C21D8/1255 , C21D8/1272 , C21D8/1283 , C22C38/008 , C22C38/02 , C22C38/16
摘要： A process for the production of a grain oriented magnetic strip, made of steel containing 2.3 to 5.0% of silicon, obtained by producing a hot-rolled sheet containing a distribution of second phases capable of controlling the secondary recrystallization by means of a two-step hot-rolling with an intermediate annealing, and by changing it into the final product.
摘要翻译： 一种生产含有2.3-5.0％硅的钢的晶粒取向磁条的制造方法，该方法是通过制备含有能够通过两步法控制二次再结晶的第二相分布的热轧板而获得的 通过中间退火进行热轧，并将其变成最终产品。
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