会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明专利
    • Method for producing grain-oriented magnetic steel sheet
    • 生产面向磁性钢板的方法
    • JP2014152393A
    • 2014-08-25
    • JP2013026225
    • 2013-02-14
    • Jfe Steel CorpJfeスチール株式会社
    • SUEHIRO RYUICHIARAGAKI YUKIHIROIMAMURA TAKESHITAKAMIYA TOSHITO
    • C21D8/12C22C38/00C22C38/60H01F1/16
    • PROBLEM TO BE SOLVED: To provide a method for producing a grain-oriented magnetic steel sheet that has a small iron loss and a small variation of iron loss, using an inhibitor-less method.SOLUTION: The method for producing a grain-oriented magnetic steel sheet is provided which includes: hot rolling a steel slab containing, in mass%, C: 0.08% or less, Si: 2.0 to 4.5%, Mn: 0.5% or less, sol. Al: less than 0.0100%, S, Se and O: each less than 0.0050%, and N: 0.52×sol. Al(%) to 0.0080%; cold rolling the hot rolled steel sheet; subjecting the cold rolled steel sheet to primary recrystallization annealing; subjecting the primarily recrystallized cold rolled steel sheet to nitriding treatment; and subjecting the nitrided cold rolled steel sheet to final annealing. In the method, the cold rolled steel sheet in the primary recrystallization annealing is rapidly heated at an average temperature rise rate of 50°C/s or more between 550°C and 700°C and is subjected to a retention treatment in which the cold rolled steel sheet is held at any temperature between 250°C and 550°C at a temperature rise rate of 10°C/s or less for 1 to 10 seconds. Further in the method, the increased N amount in the nitriding treatment is set to be within the range of 0.0050 to 0.1000 mass%, and the retention time between 300°C and 800°C of the heating process of the final annealing is set to be within 5 to 150 hours.
    • 要解决的问题:提供一种制造具有小的铁损和小的铁损的变化的晶粒取向电磁钢板的方法,使用无抑制剂的方法。解决方案:用于制造晶粒取向磁性的方法 提供钢板,其包括:以质量%计含有C:0.08%以下,Si:2.0〜4.5%,Mn:0.5%以下的钢板。 Al:小于0.0100%,S,Se和O:各自小于0.0050%,N:0.52×sol。 Al(%)至0.0080%; 冷轧热轧钢板; 对冷轧钢板进行一次再结晶退火; 将主要再结晶的冷轧钢板进行氮化处理; 对氮化冷轧钢板进行最终退火。 在该方法中,一次再结晶退火中的冷轧钢板在550℃〜700℃之间以50℃/ s以上的平均升温速度快速加热,并进行保持处理,其中冷 轧制钢板以任何温度保持在250℃-550℃之间,升温速度为10℃/ s以下1〜10秒。 此外,在该方法中,氮化处理中的N量增加设定在0.0050〜0.1000质量%的范围内,最终退火的加热工序的保持时间在300℃〜800℃之间, 在5到150小时之内。
    • 2. 发明专利
    • Manufacturing method for grain-oriented electrical steel sheet
    • 面向电工钢板的制造方法
    • JP2012188733A
    • 2012-10-04
    • JP2011196750
    • 2011-09-09
    • Jfe Steel CorpJfeスチール株式会社
    • HANAZAWA KAZUHIROTAKASHIMA MINORUTAKAMIYA TOSHITO
    • C21D8/12B21B1/26B21B3/02C21D9/46C22C38/00C22C38/60H01F1/16
    • PROBLEM TO BE SOLVED: To provide a method for advantageously manufacturing a grain-oriented electrical steel sheet excellent in magnetic characteristic at favorable productivity.SOLUTION: The manufacturing method for the grain-oriented electrical steel sheet hot-rolls a steel slab which contains, by mass, 0.020 to 0.15% of C, 2.5 to 7.0% of Si, 0.005 to 0.3% of Mn, 0.01 to 0.05% of sol.Al, 0.002 to 0.012% of N, 0.05% or lower in the total of one or two of S and Se, 0.01 to 0.20% of Sn, (0.2×Sn)% or higher and 0.10% or lower of Sb, and {0.7×(Sn+Sb)}% or higher and 1.0% or lower of Ni, cold-rolls the steel slab more than twice with intermediate annealing sandwiched between, primarily re-crystallization anneals the steel slab, and finish-anneals the steel slab. The manufacturing method for the grain-oriented electrical steel sheet is also characterized by controlling a pressure-lowering rate R at a temperature of 1,150°C at hot rolling and the highest arrival temperature T (°C) at the intermediate annealing in proper ranges according to contents of Sn, Sb and Ni of the steel slab.
    • 要解决的问题:提供一种有利地制造具有优异的磁特性的方向性电磁钢板的方法,以优异的生产率。 解决方案:一种钢板的制造方法,其特征在于,以质量计含有C:0.020〜0.15%,Si:2.5〜7.0%,Mn:0.005〜0.3%,Mn:0.01 至0.05%的溶胶A1,0.002〜0.012%的N,0.05%以下的S和Se中的一种或两种,0.01〜0.20%的Sn,(0.2×Sn)%以上且0.10%以下 较低的Sb和ä0.7×(Sn + Sb)}%以上和1.0%以下的Ni,冷轧钢板两次以上的中间退火夹层,主要是再结晶退火钢板, 并完成对钢板的退火。 晶粒取向电工钢板的制造方法的特征还在于,在热轧时控制在1150℃的温度下的降压速度R和中间退火时的最高到达温度T(℃)适当的范围, 与钢板的Sn,Sb,Ni含量成正比。 版权所有(C)2013,JPO&INPIT
    • 3. 发明专利
    • Method for manufacturing grain-oriented electrical steel sheet
    • 制造面向导电电工钢板的方法
    • JP2012162773A
    • 2012-08-30
    • JP2011024633
    • 2011-02-08
    • Jfe Steel CorpJfeスチール株式会社
    • TAKAMIYA TOSHITOTAKENAKA MASANORITAKASHITA TAKUYATAKASHIMA MINORU
    • C21D8/12C22C38/00C22C38/60
    • Y02P10/212
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a grain-oriented electrical steel sheet by which the existing shape of C before cold rolling is optimized and an excellent magnetic characteristic can stably be obtained after applying secondary recrystallization annealing.SOLUTION: The method for manufacturing the grain-oriented electrical steel sheet is performed as follows: after reheating a steel material containing, by mass%, 0.005 to 0.15% C, 2.5 to 7.0% Si, 0.005 to 0.3% Mn, 0.01 to 0.05% sol.Al, 0.002 to 0.012% N and 0.005 to 0.05% by the total of one or two kinds among S and Se, hot rolling is applied, a winding temperature is brought into a range of 760 to 460°C to generate an oxide mainly comprising FeOon the surface of a steel sheet, and then after heated to ≥800°C under an oxidizing atmosphere, cooling is performed at 10 to 100°C/s average cooling speed up to a cooling stop temperature from 800°C to 350-200°C, and then hot rolling steel sheet annealing is applied so that cooling is gradually performed at ≤5°C/s cooling speed from the cooling stop temperature for 40 to 200 s.
    • 解决问题的方案:提供一种制造方向性电磁钢板的方法,其中在冷轧后C的现有形状被优化,并且在进行二次再结晶退火之后可以稳定地获得优异的磁特性。 解决方案:晶粒取向电工钢板的制造方法如下进行:将以质量%计含有0.005〜0.15%的C,2.5〜7.0%的Si,0.005〜0.3%的Mn, 在S和Se中,0.01〜0.05%的溶胶,0.002〜0.012%的N和0.005〜0.05%的总和为1〜2种,进行热轧,卷绕温度为760〜460℃ 在钢板表面产生主要包含Fe 3 O 4 的氧化物,然后加热至≥800° 在10〜100℃/ s的平均冷却速度下进行冷却至800〜350〜200℃的冷却停止温度,然后进行热轧钢板退火,冷却为 在冷却停止温度下以≤5℃/ s的速度逐渐进行40秒至200秒。 版权所有(C)2012,JPO&INPIT
    • 6. 发明专利
    • 方向性電磁鋼板の評価方法および方向性電磁鋼板の製造方法
    • 面向电磁钢板的评估方法和面向电磁钢板的制造方法
    • JP2015052589A
    • 2015-03-19
    • JP2014131989
    • 2014-06-27
    • Jfeスチール株式会社Jfe Steel Corp
    • YAMASHITA TAKAKOTAKAMIYA TOSHITO
    • G01N33/20C21D8/12C22C38/00C22C38/60
    • 【課題】方向性電磁鋼板の製造工程の初期の段階において、製品板における鉄損不良を高い精度で予測し、鉄損特性に優れる方向性電磁鋼板を安価かつ安定して提供することができる方向性電磁鋼板の評価方法および方向性電磁鋼板の製造方法を提供する。【解決手段】熱間圧延工程以降の任意の製造工程における鋼板に、焼鈍分離剤を塗布し、その後最高到達温度1100℃以上での二次再結晶焼鈍、および980℃以上1025℃以下での純化焼鈍を施したものを供試材とし、前記供試材の表面から30〜60μmの領域の任意の位置より開始し、前記供試材の所定量を溶解して終える電解抽出を行って、得られる溶解物に含まれるインヒビターが所定の個数以下であるものを合格とする。【選択図】なし
    • 要解决的问题:提供一种定向电磁钢板的评估方法和能够廉价且稳定地提供铁损性能优异的取向电磁钢板的定向电磁钢板的制造方法,同时高精度地预测铁损失败 在制造定向电磁钢板的步骤中的初始阶段的产品片。解决方案:在热轧步骤之后的任选制备步骤中的钢板用退火分离剂进行处理,然后对钢板进行处理 在1100℃以上的最高到达温度下进行二次再结晶退火,使用980℃以上且1025℃以下的纯化退火作为样品材料,其中使用抑制剂 包括在通过从区域的任意位置开始进行电解提取而获得的裂解物中 从样品表面30〜60μm,通过溶解指定量的样品材料等于或小于规定数量被确定为接受。
    • 7. 发明专利
    • Method for manufacturing grain-oriented electromagnetic steel sheet and raw material steel sheet used for the steel sheet
    • 制造用于钢板的面向导电电磁钢板和原材料钢板的方法
    • JP2012140698A
    • 2012-07-26
    • JP2011174950
    • 2011-08-10
    • Jfe Steel CorpJfeスチール株式会社
    • TAKENAKA MASANORITAKASHIMA MINORUTAKAMIYA TOSHITO
    • C21D8/12B21B3/02C22C38/00C22C38/60H01F1/16
    • Y02P10/212
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a grain-oriented electromagnetic steel sheet excellent in magnetic property after secondary recrystallization and a raw material steel sheet used for the manufacture.SOLUTION: The method for manufacturing the grain-oriented electromagnetic steel sheet includes: hot-rolling the raw material steel containing, by mass%, C:0.02-0.15%, Si:2.5-4.0%, Mn:0.005-0.3%, sol.Al: 0.01-0.05%, N:0.002-0.012%, and 0.05% or less in total of one or two of S and Se; cold-rolling a hot-rolled steel plate two times or more while performing intermediate annealing; and performing primary recrystallization annealing and finish annealing. In the method for manufacturing the grain-oriented electromagnetic steel sheet, yield stress YS (MPa) of the raw material steel sheet before first cold rolling is adjusted to satisfy the following formula in the relationship with Si content (mass%) of the raw material steel: 124.32×Si-12.45≤YS≤124.32×Si+127.55. Thereafter, the first cold rolling is performed.
    • 解决的问题:提供一种二次再结晶后的磁特性优良的取向电磁钢板和制造用原料钢板的制造方法。 解决方案:晶粒取向电磁钢板的制造方法包括:将以质量%计含有C:0.02-0.15%,Si:2.5-4.0%,Mn:0.005-0.3的原料钢热轧 %,sol.Al:0.01-0.05%,N:0.002-0.012%,以及S和Se中的一个或两个的总和的0.05%以下; 在进行中间退火的同时将热轧钢板冷轧2次以上; 进行一次再结晶退火和最终退火。 在晶粒取向电磁钢板的制造方法中,与原料的Si含量(质量%)的关系,调整第一次冷轧前的原料钢板的屈服应力YS(MPa)以满足下式 钢:124.32×Si-12.45≤YS≤124.32×Si + 127.55。 之后,进行第一次冷轧。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Method for manufacturing steel
    • 制造钢的方法
    • JP2010126771A
    • 2010-06-10
    • JP2008303355
    • 2008-11-28
    • Jfe Steel CorpJfeスチール株式会社
    • YAMADA KATSUMIJODAI TETSUSHINORO HISATOYOKOTA TAKESHIISHIDA TOMOHARUARAGAKI YUKIHIROTAKAMIYA TOSHITO
    • C21D9/46C21D8/00G01N33/20G05B19/418
    • Y02P80/40
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a steel, with which the suitable feedback or feedforward can be performed according to various cases by quickly finding the manufacturing conditions to be corrected for maintaining target characteristics. SOLUTION: In the manufactured steel, one or more pieces of information on composition of a precipitation and/or inclusion, information on size of the precipitation and/or the inclusion and information on solid-solution quantity of noticed elements, are obtained. In the case when at least one among the pieces of obtained information is out of a prescribed range, at least one of the manufacturing conditions in which one or more among the composition of the precipitation and/or the inclusion, the size of the precipitation and/or the inclusion and the solid-solution quantity of the noticed elements, is corrected. Then, the steel is manufactured with the corrected manufacturing condition. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种制造钢的方法,通过快速找到要修正的制造条件以保持目标特性,根据各种情况可以进行合适的反馈或前馈。

      解决方案:在制造钢中,获得关于沉淀和/或夹杂物的组成的一个或多个信息,关于沉淀尺寸和/或包含物的信息以及关于注意元素的固溶量的信息 。 在所获得的信息中的至少一个超出规定范围的情况下,在沉淀和/或夹杂物的组成和沉淀的大小中的一个或多个的制造条件和 /或注意元素的夹杂物和固溶体量被校正。 然后,用修正的制造条件制造钢。 版权所有(C)2010,JPO&INPIT

    • 10. 发明专利
    • Method for manufacturing oriented electromagnetic steel sheet
    • 制造面向电磁钢板的方法
    • JP2014194073A
    • 2014-10-09
    • JP2014024258
    • 2014-02-12
    • Jfe Steel CorpJfeスチール株式会社
    • IMAMURA TAKESHISUEHIRO RYUICHITAKAMIYA TOSHITOFUKUNAGA TAKAYUKI
    • C21D8/12B23K15/00B23K26/352C21D9/46C22C38/00C22C38/04C22C38/60C23C22/00H01F1/16
    • Y02P10/212
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing an oriented electromagnetic steel sheet having low iron loss.SOLUTION: In a method for manufacturing an oriented electromagnetic steel sheet that comprises a series of processes including hot rolling of a steel raw material containing C:0.002 to 0.10 mass%, Si:2.0 to 8.0 mass% and Mn:0.005 to 1.0 mass%, hot rolled sheet firing if needed, cold rolling, primary recycling firing or primary recycling firing with decarbonization, and then finish firing, and a magnetic domain fragmentation treatment in any process after the cold rolling, a retention treatment for retaining any temperature from 250 to 600°C for t (sec.) when conducting a rapid heating at 50°C/s or more in a range of 200 to 700°C in a heating process of the primary recycling firing is conducted, and the magnetic domain fragmentation treatment is conducted so that a space W (mm) in a rolling direction of a strain part or a groove part attached to a surface of the steel sheet satisfies the following formula: -t+3
    • 要解决的问题:提供一种制造具有低铁损的取向电磁钢板的方法。解决方案:一种制造定向电磁钢板的方法,包括一系列包括含有C: 0.002〜0.10质量%,Si:2.0〜8.0质量%,Mn:0.005〜1.0质量%,如果需要,进行热轧板烧成,冷轧,一次再循环烧成或一次再烧成,然后进行烧成, 在冷轧后的任何工序中进行域断裂处理,在200〜700℃的范围内进行50℃/ s以上的快速加热时,保持250〜600℃的温度保持t(秒) 进行一次循环烧成的加热工序,进行磁畴破碎处理,使得应变部的轧制方向的空间W(mm)或与st的表面相连的槽部 鳗鱼片满足下列公式:-t + 3