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公开(公告)号：EP3926060A1
公开(公告)日：2021-12-22
申请号：EP20756077.2
申请日：2020-02-14
摘要： The present disclosure has as its object the provision of non-oriented electrical steel sheet excellent in magnetic properties which is free from any drop in magnetic flux density even after stress relief annealing and a method for manufacturing the same.
Non-oriented electrical steel sheet having a chemical composition containing C: 0.0030 mass% or less, Si: 2.0 mass% or more and 4.0 mass% or less, Al: 0.010 mass% or more and 3.0 mass% or less, Mn: 0.10 mass% or more and 2.4% mass or less, P: 0.0050 mass% or more and 0.20 mass% or less, S: 0.0030 mass% or less, and one or more elements selected from the group comprising Mg, Ca, Sr, Ba, Ce, La, Nd, Pr, Zn, and Cd: total 0.00050 mass% or more and having a balance of Fe and unavoidable impurities, where, when designating a mass% of Si as [Si], a mass% of Al as [Al], and a mass% of Mn as [Mn], a parameter Q shown by the following formula (1) is 2.0 or more, a random intensity ratio of the {100} orientation is 2.4 or more, and an average grain size is 30 µ m or less: Q = Si + 2 A 1 − Mn-
公开(公告)号：EP3633055A1
公开(公告)日：2020-04-08
申请号：EP17911572.0
申请日：2017-06-02
摘要： When a Si content (mass%) is set to [Si], an Al content (mass%) is set to [Al], and a Mn content (mass%) is set to [Mn], a parameter Q represented by "Q = [Si] + 2[Al] - [Mn]" is 2.00 or more, the total mass of S contained in sulfides or oxysulfides of Mg, Ca, Sr, Ba, Ce, La, Nd, Pr, Zn, or Cd is 40% or more of the total mass of S contained in a non-oriented electrical steel sheet, a {100} crystal orientation intensity is 3.0 or more, a thickness is 0.15 mm to 0.30 mm, and an average crystal grain diameter is 65 µ m to 100 µ m.
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3.发明公开HIGH-STRENGTH NON-ORIENTED MAGNETIC STEEL SHEET AND PROCESS FOR PRODUCING THE HIGH-STRENGTH NON-ORIENTED MAGNETIC STEEL SHEET 审中-公开高强度不得方向性电磁钢板及其制造方法高强度不得方向性电磁钢板
公开(公告)号：EP2278034A1
公开(公告)日：2011-01-26
申请号：EP09732579.9
申请日：2009-04-13
CPC分类号： H01F1/16 , C21D8/1222 , C21D8/1272 , C21D2201/05 , C21D2211/004 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , H01F1/147
摘要： A high-strength non-oriented electrical steel sheet contains: by mass%, C: not less than 0.002% nor more than 0.05%; Si: not less than 2.0% nor more than 4.0%; Mn: not less than 0.05% nor more than 1.0%; N: not less than 0.002% nor more than 0.05%; and Cu: not less than 0.5% nor more than 3.0%. An Al content is 3.0% or less, and when a Nb content (%) is set to [Nb], a Zr content (%) is set to [Zr], a Ti content (%) is set to [Ti], a V content (%) is set to [V], a C content (%) is set to [C], and an N content (%) is set to [N], Formula (1) and Formula (2) are satisfied. A balance is composed of Fe and inevitable impurities, a recrystallization area ratio is 50% or more, yield stress at a tensile test is 700 MPa or more, fracture elongation is 10% or more, and an eddy current loss We 10/400 (W/kg) satisfies Formula (3) in relation to a sheet thickness t (mm) of the steel sheet. 2.0 × 10 - 4 ≦ Nb / 93 + Zr / 91 + Ti / 48 + V / 51 1.0 × 10 - 3 ≦ C / 12 + N / 14 - Nb / 93 + Zr / 91 + Ti / 48 + V / 51 ≦ 3.0 × 10 - 3 We 10 / 400 ≦ 70 × t 2
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公开(公告)号：EP2439302A1
公开(公告)日：2012-04-11
申请号：EP10783293.3
申请日：2010-05-25
发明人： MIYAZAKI, Masafumi , YAMAMURA, Hideaki , KUBOTA, Takeshi , KUROSAKI, Yousuke , KAWAKAMI, Kazuto , MIZUKAMI, Kazumi , WAKISAKA, Takeaki
CPC分类号： H01F1/14775 , B22D11/00 , B22D11/108 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/005 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/14 , C22C38/16 , C22C38/28 , C22C38/34 , C22C38/38 , C22C38/60 , H01F1/16
摘要： In a non-oriented electrical steel sheet, Si: not less than 1.0 mass% nor more than 3.5 mass%, Al: not less than 0.1 mass% nor more than 3.0 mass%, Ti: not less than 0.001 mass% nor more than 0.01 mass%, Bi: not less than 0.001 mass% nor more than 0.01 mass%, and so on are contained. (1) expression described below is satisfied when a Ti content (mass%) is represented as [Ti] and a Bi content (mass%) is represented as [Bi]. Ti ≦ 0.8 × Bi + 0.002
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5.发明公开METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL SHEET HAVING EXCELLENT MAGNETIC PROPERTIES 审中-公开工艺生产具有优良磁性的不结盟电工钢片
公开(公告)号：EP2078572A1
公开(公告)日：2009-07-15
申请号：EP07829269.5
申请日：2007-10-01
CPC分类号： B22D11/001 , B22D11/06 , B22D11/0697 , C21D8/1211 , C21D8/1272 , C21D8/1283 , C21D2211/005 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06
摘要： A rapidly-solidified non-oriented electrical steel sheet having high magnetic flux density and low core loss is provided.
The method of producing the non-oriented electrical steel sheet excellent in magnetic properties comprises casting a steel strip by using a traveling cooling roll surface(s) to solidify a steel melt of a prescribed chemical composition, which melt contains one or both of REM and Ca at a total content of 0.0020 to 0.01% and is cast in an atmosphere of Ar, He or a mixture thereof.-
6.发明公开NON-ORIENTED MAGNETIC STEEL SHEET WITH HIGH STRENGTH 审中-公开NICHTORIENTIERTES MAGNETSTAHLBLECH MIT HOHER FESTIGKEIT
公开(公告)号：EP2045347A1
公开(公告)日：2009-04-08
申请号：EP07745551.7
申请日：2007-06-15
CPC分类号： C22C38/02 , C21D8/12 , C21D8/1272 , C21D9/46 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , H01F1/14716 , H01F1/14791
摘要： The invention provides a non-oriented electrical steel sheet excellent in yield strength for use as an iron core material for high rpm motors that does not sacrifice yield or productivity in motor core punching or steel sheet production, which non-oriented electrical steel sheet is given a chemical composition of, in mass%, C: 0.01 to 0.05%, Si: 2.0 to 4.0%, Mn: 0.05 to 0.5%, Al: 3.0% or less and Nb: 0.01 to 0.05%, and optionally Ni at a preferable content of more than 0.5% and less than 3.0%, the balance being Fe and unavoidable impurities, Mn and C contents expressed in mass% are made to satisfy Mn ≤ 0.6 - 10 x C, recrystallized portion area fraction is made 50% or greater, yield strength in tensile testing is made 650 MPa or greater, and average grain diameter viewed in steel sheet cross-section is made 40 µm or less, and electrical steel sheet production is conducted using a hot-rolled sheet whose transition temperature in impact testing is 70 °C or less.
摘要翻译： 本发明提供了一种用于高转速电动机的铁心材料的屈服强度优异的无取向电工钢板，其不牺牲电动机芯冲孔或钢板生产中的成品率或生产率，该非取向电工钢板被给予 以质量％计含有C：0.01〜0.05％，Si：2.0〜4.0％，Mn：0.05〜0.5％，Al：3.0％以下，Nb：0.01〜0.05％的化学组成， 含量超过0.5％且小于3.0％，余量为Fe和不可避免的杂质，以质量％表示的Mn和C含量满足Mn‰0.6-10×C，再结晶部分面积分数为50％ 拉伸试验的屈服强度越大，拉伸试验的屈服强度为650MPa以上，钢板截面的平均粒径为40μm以下，使用冲击中的转变温度的热轧板进行电工钢板的制造 试验温度为70℃以下。
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7.发明公开
公开(公告)号：EP2537958A1
公开(公告)日：2012-12-26
申请号：EP11744614.6
申请日：2011-02-15
发明人： YAMAZAKI, Shuichi , KUBOTA, Takeshi , KUROSAKI, Yousuke , FUJIKURA, Masahiro , SHIMAZU, Takahide
CPC分类号： H01F1/14783 , C21D1/26 , C21D6/002 , C21D6/005 , C21D6/008 , C21D8/12 , C21D8/1244 , C21D8/1283 , C21D8/1288 , C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/34 , C23C8/10 , C23C8/18 , C23C22/07 , C23C22/50 , C23C22/74 , C23C24/00 , C23C28/00 , H01F1/18 , H01F41/32
摘要： A non-oriented electrical steel sheet includes: a base iron (1); and a tension applying type insulating film (2) of not less than 1 g/m 2 nor more than 6 g/m 2 on a surface of the base iron (1). An oxide layer (3) containing at least one type of oxide selected from the group consisting of Si, Al, and Cr and having a thickness of not less than 0.01 µm nor more than 0.5 µm is formed on the surface of the base iron (1).
摘要翻译： 无方向性电磁钢板包括：基底铁（1）; 以及在基础铁（1）的表面上不小于1g / m 2且不大于6g / m 2的张力施加型绝缘膜（2）。 在基底铁的表面上形成含有选自Si，Al和Cr中至少一种类型的氧化物层（3），其厚度不小于0.01μm不大于0.5μm， 1）。
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8.发明公开
公开(公告)号：EP2390376A1
公开(公告)日：2011-11-30
申请号：EP10733454.2
申请日：2010-01-19
发明人： KUBOTA, Takeshi
CPC分类号： C22C38/001 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/14 , H01F1/16
摘要： A non-oriented electrical steel sheet contains: C: not less than 0.003 mass% nor more than 0.05 mass%; N: not less than 0.001 mass% nor more than 0.01 mass%; and Si: not less than 2.8 mass% nor more than 3.5 mass%. The non-oriented electrical steel sheet further contains at least one kind selected from a group consisting of Ni: 4.0 mass% or less and Mn: 2.0 mass% or less, in a total amount of 0.5 mass% or more, and further contains Ti, a value R Ti being not less than 1 nor more than 10, the value R Ti being expressed by [Ti]/(4x([C]+[N])) when a Ti content is expressed as [Ti] mass%, a C content is expressed as [C] mass%, and an N content is expressed as [N] mass%. An Al content is 3.0 mass% or less, and a P content is 0.2 mass% or less.
摘要翻译： 无取向电工钢板含有：C：0.003质量％以上0.05质量％以下， N：0.001质量％以上0.01质量％以下 Si：2.8质量％以上3.5质量％以下。 无取向电工钢板还含有选自Ni：4.0质量％以下，Mn：2.0质量％以下的至少一种，总量为0.5质量％以上，进一步含有Ti ，当Ti含量表示为[Ti]质量％时，R Ti不小于1，不大于10，R Ti由[Ti] /（4x（[C] + [N]））表示） ，C含量表示为[C]质量％，N含量表示为[N]质量％。 Al含量为3.0质量％以下，P含量为0.2质量％以下。
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公开(公告)号：EP3633056A1
公开(公告)日：2020-04-08
申请号：EP17912209.8
申请日：2017-06-02
摘要： When a Si content (mass%) is set to [Si], an Al content (mass%) is set to [Al], and a Mn content (mass%) is set to [Mn], a parameter Q represented by "Q = [Si] + 2[Al] - [Mn]" is 2.00 or more, the total mass of S contained in sulfides or oxysulfides of Mg, Ca, Sr, Ba, Ce, La, Nd, Pr, Zn, or Cd is 10% or more of the total mass of S contained in a non-oriented electrical steel sheet, a {100} crystal orientation intensity is 3.0 or more, a thickness is 0.15 mm to 0.30 mm, and an average crystal grain diameter is 65 µ m to 100 µ m.
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公开(公告)号：EP3633054A1
公开(公告)日：2020-04-08
申请号：EP17911443.4
申请日：2017-06-02
摘要： When a Si content (mass%) is set to [Si], an Al content (mass%) is set to [Al], and a Mn content (mass%) is set to [Mn], a parameter Q represented by "Q = [Si] + 2[Al] - [Mn]" is 2.00 or more, the total mass of S contained in sulfides or oxysulfides of Mg, Ca, Sr, Ba, Ce, La, Nd, Pr, Zn, or Cd is 40% or more of the total mass of S contained in a non-oriented electrical steel sheet, a {100} crystal orientation intensity is 3.0 or more, a thickness is 0.15 mm to 0.30 mm, and an average crystal grain diameter is 65 µ m to 100 µ m.
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