Oriented electromagnetic steel plate
    41.
    发明专利
    Oriented electromagnetic steel plate 有权
    定向电磁钢板

    公开(公告)号:JP2012072431A

    公开(公告)日:2012-04-12

    申请号:JP2010217370

    申请日:2010-09-28

    Abstract: PROBLEM TO BE SOLVED: To provide an oriented electromagnetic steel plate with a groove for refining magnetic domain, which oriented electromagnetic steel plate can attain reduced iron loss when assembled into a real transformer and has excellent iron loss characteristics at the real machine.SOLUTION: The thickness a(μm) of an insulation coating film in the bottom surface of a linear groove, the thickness a(μm) of the insulation coating film on the steel plate surface outside the linear groove, and the depth a(μm) of the linear groove are regulated so that they satisfy the following formulae (1) : 0.3 μm≤a≤3.5 μm and (2): a+a-a≤15 μm.

    Abstract translation: 要解决的问题:提供一种具有用于精细磁畴的槽的取向电磁钢板,当组装到实际变压器中时,该定向电磁钢板可以获得减少的铁损,并且在实际机器中具有优异的铁损特性。

    解决方案:直线槽底面的绝缘涂膜的厚度a 1 (μm),厚度a 2 直线槽外侧的钢板表面上的绝缘涂膜的平均厚度(μm)和直线槽的深度a 3 (μm) 它们满足以下公式(1):0.3μm≤a 2 ≤3.5μm和(2):a 2 + a 3 -a 1 ≤15μm。 版权所有(C)2012,JPO&INPIT

    Method for manufacturing non-oriented electromagnetic steel sheet
    42.
    发明专利
    Method for manufacturing non-oriented electromagnetic steel sheet 有权
    制造非定向电磁钢板的方法

    公开(公告)号:JP2011256437A

    公开(公告)日:2011-12-22

    申请号:JP2010132291

    申请日:2010-06-09

    Abstract: PROBLEM TO BE SOLVED: To provide a non-oriented electromagnetic steel sheet that exhibits a minimized variation in magnetic properties in a coil and has excellent magnetic properties at every part of the coil, even if a primary recrystallization annealing step is performed through a rapid heating treatment.SOLUTION: In a method for manufacturing the non-oriented electromagnetic steel sheet, the primary recrystallization annealing step includes the steps of: carrying out a heating procedure to a temperature range of 700°C or higher at a temperature rising rate of 150 °C/s or more by a direct heating mode; subsequently carrying out a cooling procedure to a temperature range of 700°C or less; and subsequently carrying out a re-heating procedure to a soak temperature at an average temperature rising rate of 40 °C/s or less by an indirect heating mode.

    Abstract translation: 要解决的问题:为了提供一种在线圈中磁性能变化最小的无取向电磁钢板,并且在线圈的每一部分具有优异的磁特性,即使一次再结晶退火步骤通过 快速加热处理。 解决方案:在一种用于制造无取向电磁钢板的方法中,一次再结晶退火步骤包括以下步骤:以700℃或更高的温度范围进行加热,升温速度为150℃ °C / s以上; 随后进行到700℃以下的温度范围的冷却工序; 并且随后通过间接加热模式以40℃/ s以下的平均升温速率对浸泡温度进行再加热。 版权所有(C)2012,JPO&INPIT

    Method for manufacturing grain-oriented electromagnetic steel sheet
    44.
    发明专利
    Method for manufacturing grain-oriented electromagnetic steel sheet 有权
    制造面向导电电磁钢板的方法

    公开(公告)号:JP2011174138A

    公开(公告)日:2011-09-08

    申请号:JP2010039389

    申请日:2010-02-24

    Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a grain-oriented electromagnetic steel sheet from an inhibitor-free base material, which can stably obtain an effect of reducing iron loss by rapid heating treatment, when subjecting a cold-rolled sheet to primary recrystallization annealing including the rapid heating treatment. SOLUTION: In a process of manufacturing the grain-oriented electromagnetic steel sheet by preparing a steel slab reduced to the contents of 100 ppm or less Al and 50 ppm or less N, S and Se respectively, which are all inhibitor components, hot-rolling the steel slab, cold-rolling the hot-rolled steel slab once, or twice or more sandwiching intermediate annealing to the final sheet thickness, subjecting the cold-rolled sheet to primary recrystallization annealing, and then subjecting the resultant cold-rolled sheet to secondary recrystallization annealing, the primary recrystallization annealing includes the steps of: heating the cold-rolled sheet to a temperature region of 700°C or higher at a heating speed of 150°C/s or more, then cooling the heated steel sheet to a temperature region of 700°C or lower once, and heating the cooled steel sheet to a soaking temperature in the next heating zone on a condition that the average heating speed is 40°C/s or less. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种通过无抑制剂的基材制造方向性电磁钢板的方法,其通过快速加热处理可以稳定地获得还原铁损的效果,当冷轧 包括快速加热处理的一次再结晶退火。 解决方案:在制造晶粒取向电磁钢板的方法中,通过制备减少至100ppm以下的Al和分别为50ppm以下的N,S和Se的钢板,均为阻聚剂成分, 对钢坯进行热轧,对热轧钢坯进行一次或两次以上的冷轧,将中间退火夹持在最终板厚上,对冷轧板进行一次再结晶退火,然后对所得到的冷轧 进行二次再结晶退火,一次再结晶退火包括以150℃/ s以上的加热速度将冷轧板加热到700℃以上的温度区域,然后冷却加热后的钢板 到700℃以下的温度区域,在平均加热速度为40℃/秒以下的条件下,将冷却后的钢板加热到下一个加热区域的均热温度。 版权所有(C)2011,JPO&INPIT

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