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公开(公告)号：US09809875B2
公开(公告)日：2017-11-07
申请号：US14422825
申请日：2013-10-18
IPC分类号： C22C38/28 , C22C38/50 , C22C38/14 , C21C7/10 , C22C38/00 , C21D1/06 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/40 , C21C7/064 , C22C38/42 , C22C38/44 , C21D9/40
CPC分类号： C22C38/50 , C21C7/064 , C21C7/10 , C21D1/06 , C21D9/40 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/40 , C22C38/42 , C22C38/44
摘要： A case hardening steel includes as a chemical composition, by mass %, C: 0.10% to 0.40%, Si: 0.01% to 0.80%, Mn: 0.1% to 1.5%, Cr: 0.35% to 2.0%, Al: 0.01% to 0.05%, REM: 0.0001% to 0.050%, O: 0.0001% to 0.0030%, Ca: 0.0050% or less as necessary, Ti: less than 0.005%, N: 0.015% or less, P: 0.03% or less, S: 0.01% or less, and the balance consists of Fe and impurities. The case hardening steel also includes a composition inclusion which is an inclusion containing REM, O, S, and Al, or an inclusion containing REM, Ca, O, S, and Al, to which TiN is adhered.
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公开(公告)号：US09732407B2
公开(公告)日：2017-08-15
申请号：US14352290
申请日：2012-10-05
IPC分类号： C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50 , C21C7/06 , C21D1/32 , C21D9/40 , C21D9/36 , B22D11/01 , B22D27/02 , C21D8/00 , C22C38/00 , C21C7/064 , F16C33/62
CPC分类号： C22C38/50 , B22D11/015 , B22D27/02 , C21C7/06 , C21C7/0645 , C21D1/32 , C21D8/005 , C21D9/36 , C21D9/40 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/42 , C22C38/44 , C22C38/46 , F16C33/62 , F16C2300/02
摘要： A bearing steel includes, as a metallographic structure, inclusions which contain complex oxysulfides including Rare Earth Metal, Ca, O, S, and Al, TiN, MnS, Al2O3, and complex oxides including Al and Ca, wherein, a number fraction of the complex oxysulfides in a total number of the inclusions is 50% to less than 100% and a number of complex oxysulfides having a major axis of 5 μm or more is 0.001 pieces to 2 pieces in an observed section of 1 mm2, and a number of TiN existing independently from the complex oxysulfides and having a major axis of 5 μm or more is 0.001 pieces to less than 1.0 piece in an observed section of 1 mm2.
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3.发明授权公开(公告)号：US10081042B2
公开(公告)日：2018-09-25
申请号：US14911601
申请日：2014-08-07
IPC分类号： C22C38/26 , C22C38/02 , B21C37/08 , C22C38/00 , C22C38/14 , C22C38/58 , C21D8/10 , C22C38/04 , C22C38/12 , B22D11/00 , B23K11/087 , B23K11/34 , C21D9/14 , C22C33/04 , C22C38/06 , C22C38/08 , C22C38/16 , C22C38/24 , C22C38/28 , C21D9/08
CPC分类号： B21C37/08 , B22D11/001 , B23K11/0873 , B23K11/34 , C21D8/105 , C21D9/08 , C21D9/14 , C22C33/04 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/58
摘要： Electric resistance welded steel pipe excellent in weld zone quality suitable for oil country tubular goods and line pipe wherein steel plate forming the base metal of the electric resistance welded steel pipe has a predetermined chemical composition, the contents of Ca, O, S, Ce, La, and Al satisfy XCASO = ( Ca O + Ca S + 0.285 Ce + La O + 0.285 Ce + La S ) × ( Al Ca ) > 78 the oxide-based inclusions in the weld zone of the electric resistance welded steel pipe contains one or both of Ce and La, and the long axis/short axis of the oxide-based inclusions is 2.5 or less.
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公开(公告)号：US09896749B2
公开(公告)日：2018-02-20
申请号：US14423754
申请日：2013-10-18
IPC分类号： C22C38/14 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/40 , C21C7/064 , C21C7/10 , C21D9/40
CPC分类号： C22C38/14 , C21C7/064 , C21C7/10 , C21D9/40 , C21D2211/004 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/40
摘要： A steel for induction hardening includes as a chemical composition, by mass %, C: 0.45% to 0.85%, Si: 0.01% to 0.80%, Mn: 0.1% to 1.5%, Al: 0.01% to 0.05%, REM: 0.0001% to 0.050%, O: 0.0001% to 0.0030%. Ca: 0.0050% or less as necessary, Ti: less than 0.005%, N: 0.015% or less, P: 0.03% or less, S: 0.01% or less, and the balance consists of Fe and impurities. The steel for induction hardening also includes a composition inclusion which is an inclusion containing REM, O, S, and Al, or an inclusion containing REM, Ca, O, S, and Al, to which TiN is adhered.
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公开(公告)号：US20150203943A1
公开(公告)日：2015-07-23
申请号：US14423754
申请日：2013-10-18
CPC分类号： C22C38/14 , C21C7/064 , C21C7/10 , C21D9/40 , C21D2211/004 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/40
摘要： A steel for induction hardening includes as a chemical composition, by mass %, C: 0.45% to 0.85%, Si: 0.01% to 0.80%, Mn: 0.1% to 1.5%, Al: 0.01% to 0.05%, REM: 0.0001% to 0.050%, O: 0.0001% to 0.0030%. Ca: 0.0050% or less as necessary, Ti: less than 0.005%, N: 0.015% or less, P: 0.03% or less, S: 0.01% or less, and the balance consists of Fe and impurities. The steel for induction hardening also includes a composition inclusion which is an inclusion containing REM, O, S, and Al, or an inclusion containing REM, Ca, O, S, and Al, to which TiN is adhered.
摘要翻译： 用于感应淬火的钢包括质量％C：0.45％至0.85％，Si：0.01％至0.80％，Mn：0.1％至1.5％，Al：0.01％至0.05％，REM：0.0001 ％至0.050％，O：0.0001％至0.0030％。 Ca：0.0050％以下，Ti：小于0.005％，N：0.015％以下，P：0.03％以下，S：0.01％以下，余量由Fe和杂质构成。 用于感应淬火的钢还包括含有REM，O，S和Al的夹杂物或者含有附着有TiN的REM，Ca，O，S和Al的夹杂物的组合物夹杂物。
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公开(公告)号：US20150191808A1
公开(公告)日：2015-07-09
申请号：US14422825
申请日：2013-10-18
IPC分类号： C22C38/50 , C22C38/42 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/00 , C22C38/22 , C22C38/20 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/44 , C22C38/24
CPC分类号： C22C38/50 , C21C7/064 , C21C7/10 , C21D1/06 , C21D9/40 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/40 , C22C38/42 , C22C38/44
摘要： A case hardening steel includes as a chemical composition, by mass %, C: 0.10% to 0.40%, Si: 0.01% to 0.80%, Mn: 0.1% to 1.5%, Cr: 0.35% to 2.0%, Al: 0.01% to 0.05%, REM: 0.0001% to 0.050%, O: 0.0001% to 0.0030%, Ca: 0.0050% or less as necessary, Ti: less than 0.005%, N: 0.015% or less, P: 0.03% or less, S: 0.01% or less, and the balance consists of Fe and impurities. The case hardening steel also includes a composition inclusion which is an inclusion containing REM, O, S, and Al, or an inclusion containing REM, Ca, O, S, and Al, to which TiN is adhered.
摘要翻译： 表面硬化钢以质量％计含有C：0.10〜0.40％，Si：0.01〜0.80％，Mn：0.1〜1.5％，Cr：0.35〜2.0％，Al：0.01％ 〜0.05％，REM：0.0001〜0.050％，O：0.0001〜0.0030％，Ca：0.0050％以下，Ti：小于0.005％，N：0.015％以下，P：0.03％以下， S：0.01％以下，余量由Fe和杂质构成。 表面硬化钢还包括含有REM，O，S和Al的夹杂物或者含有附着有TiN的REM，Ca，O，S和Al的夹杂物的组合物夹杂物。
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公开(公告)号：US10202665B2
公开(公告)日：2019-02-12
申请号：US15304540
申请日：2015-04-22
发明人： Masayuki Hashimura , Junya Yamamoto , Kazumi Mizukami , Naotsugu Yoshida , Masafumi Miyazaki , Kenichiro Miyamoto
IPC分类号： C21D9/02 , C21C7/04 , C21C7/06 , C21C7/10 , B22D11/00 , B22D11/124 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/42 , C22C38/46 , C22C38/50 , C22C38/54 , C22C38/60 , B22D11/115 , C22C38/00
摘要： A spring steel according to the present embodiment has a chemical composition consisting of, in mass %, C: 0.4 to 0.7%, Si: 1.1 to 3.0%, Mn: 0.3 to 1.5%, P: 0.03% or less, S: 0.05% or less, Al: 0.01 to 0.05%, rare earth metal: 0.0001 to 0.002%, N: 0.015%, O or less: 0.0030% or less, Ti: 0.02 to 0.1%, with the balance being Fe and impurities. In the spring steel, the number of oxide inclusions having an equivalent circular diameter of equal to or greater than 5 μm is equal to or less than 0.2/mm2, the oxide inclusions each being one of an Al-based oxide, a complex oxide containing REM, O and Al, and a complex oxysulfide containing REM, O, S, and Al. Further, a maximum value among equivalent circular diameters of the oxide inclusions is equal to or less than 40 μm.
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公开(公告)号：US20140072471A1
公开(公告)日：2014-03-13
申请号：US14115758
申请日：2013-02-05
IPC分类号： C22C38/38 , C22C38/28 , C22C38/16 , C22C38/00 , C22C38/08 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/34 , C22C38/14
CPC分类号： C22C38/38 , C21D6/005 , C21D6/008 , C21D8/12 , C21D2211/004 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/005 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/14 , C22C38/16 , C22C38/18 , C22C38/20 , C22C38/28 , C22C38/34 , C22C38/40 , C22C38/42 , C22C38/50 , H01F1/16
摘要： A non-oriented electrical steel sheet, containing: C: 0.01 mass % or less; Si: 1.0 mass % or more and 3.5 mass % or less; Al: 0.1 mass % or more and 3.0 mass % or less; Mn: 0.1 mass % or more and 2.0 mass % or less; P: 0.1 mass % or less; S: 0.005 mass % or less; Ti: 0.001 mass % or more and 0.01 mass % or less; N: 0.005 mass % or less; and Y: more than 0.05 mass % and 0.2 mass % or less, with the balance being iron and inevitable impurities.
摘要翻译： 无取向电工钢板，含有：C：0.01质量％以下; Si：1.0质量％以上且3.5质量％以下; Al：0.1质量％以上且3.0质量％以下; Mn：0.1质量％以上且2.0质量％以下; P：0.1质量％以下; S：0.005质量％以下; Ti：0.001质量％以上且0.01质量％以下; N：0.005质量％以下 和Y：大于0.05质量％和0.2质量％以下，余量为铁和不可避免的杂质。
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公开(公告)号：US10350676B2
公开(公告)日：2019-07-16
申请号：US14785815
申请日：2013-04-23
IPC分类号： C21C7/00 , B22D11/11 , C22C38/26 , C22C38/24 , C21C7/06 , C22C38/00 , C22C38/58 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/40 , C21C7/10 , C21D8/06 , C21D9/02 , B22D11/00 , B22D11/113 , B22D11/114 , C21D1/26 , C21D6/00 , C22C38/02 , C22C38/08 , C22C38/14 , C22C38/16 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/54
摘要： A spring steel includes a predetermined chemical composition and a composite inclusion having a maximum diameter of 2 μm or more that TiN is adhered to an inclusion containing REM, O and Al, in which the number of the composite inclusion is 0.004 pieces/mm2 to 10 pieces/mm2, the maximum diameter of the composite inclusion is 40 μm or less, the sum of the number density of an alumina cluster having the maximum diameter of 10 μm or more, MnS having the maximum diameter of 10 μm or more and TiN having the maximum diameter of 1 μm to 10 pieces/mm2.
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公开(公告)号：US09595376B2
公开(公告)日：2017-03-14
申请号：US14740440
申请日：2015-06-16
发明人： Masafumi Miyazaki , Hideaki Yamamura , Takeshi Kubota , Yousuke Kurosaki , Kazuto Kawakami , Kazumi Mizukami , Takeaki Wakisaka
IPC分类号： C22C38/02 , H01F1/147 , C22C38/00 , C22C38/04 , B22D11/00 , B22D11/108 , C22C38/06 , C22C38/14 , H01F1/16 , C22C38/08 , C22C38/16 , C22C38/28 , C22C38/34 , C22C38/38 , C22C38/60
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： A non-oriented electrical steel sheet comprising, 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 %, wherein Expression (1) 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 . . . (1).
摘要翻译： 一种无取向电工钢板，其特征在于：Si：1.0质量％以上3.5质量％以下，Al：0.1质量％以上3.0质量％以下，Ti：0.001质量％以上 0.01质量％，Bi：0.001质量％以上0.01质量％以下，将Ti含量（质量％）表示为[Ti]，以Bi含量（质量％）表示时，满足式（1） [Bi]：[Ti]≤0.8×[Bi] +0.002。 。 。 （1）。
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