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1. 发明专利

JP2007284774A Wire rod superior in delayed fracture resistance and cold workability, and manufacturing method therefor 审中-公开
$Wire rod superior in delayed fracture resistance and cold workability, and manufacturing method therefor$
标题翻译：电线长度在延迟断裂电阻和冷加工性及其制造方法
公开(公告)号：JP2007284774A
公开(公告)日：2007-11-01
申请号：JP2006116596
申请日：2006-04-20
申请人： Jfe Bars & Shapes Corp , Jfe条鋼株式会社
发明人： KIKUCHI KATSUHIKO , SHIRAGAMI TETSUO
IPC分类号： C22C38/00 , C21D8/06 , C22C38/38 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a wire rod superior in delayed fracture resistance and cold workability, and to provide a manufacturing method therefor. SOLUTION: The wire rod has a steel composition comprising, by mass%, 0.05 to 0.2% C, 0.3 to 1% Si, 0.8 to 2.5% Mn, 0.035% or less P, 0.035% or less S, 0.1 to 1% Cr, 0.005 to 1% Al, 0.003 to 0.015% N, 0.005% or less O, one or more elements among Nb, Ti, V, Mo, Ni, Cu, and Sn, as needed, while controlling Ceq(=C+Si/7+Mn/5+Cr/9) into 0.85% or less, and the balance Fe with unavoidable impurities; and has a microstructure of a bainitic structure. The manufacturing method comprises the steps of: hot-rolling the steel having the above composition; immediately cooling it to 5 to 50°C; and then cold-drawing the hot-rolled steel into a steel wire. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供优异的延迟断裂性和冷加工性的线材，并提供其制造方法。钢丝的组成为：以质量％计含有0.05〜0.2％的C，0.3〜1％的Si，0.8〜2.5％的Mn，0.035％以下的P，0.035％以下的S，0.1〜 1％Cr，0.005〜1％Al，0.003〜0.015％N，0.005％以下O，Nb，Ti，V，Mo，Ni，Cu，Sn中的1种以上元素，同时控制Ceq（= C + Si / 7 + Mn / 5 + Cr / 9）为0.85％以下，余量为Fe，不可避免的杂质; 并具有贝氏体结构的微结构。该制造方法包括以下步骤：对具有上述组成的钢进行热轧; 立即将其冷却至5〜50℃; 然后将热轧钢冷拔成钢丝。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2006274373A Steel for high strength screw having excellent toughness and cold workability and method for producing high strength screw 有权
标题翻译：具有优异韧性和冷加工性能的高强度钢丝和用于生产高强度螺杆的方法
公开(公告)号：JP2006274373A
公开(公告)日：2006-10-12
申请号：JP2005096713
申请日：2005-03-30
申请人： Jfe Bars & Shapes Corp , Jfe条鋼株式会社
发明人： SHIRAGAMI TETSUO , KIKUCHI KATSUHIKO
IPC分类号： C22C38/00 , C21D9/00 , C22C38/18 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel for a high strength screw, and to provide a method for producing a high strength screw using the same.
SOLUTION: The steel for a high strength screw has a composition comprising, by mass, 0.07 to 0.15% C, ≤0.2% Si, 0.5 to 2% Mn, ≤0.015% P, ≤0.015% S, ≤2% (excluding zero) Cr, 0.005 to 0.08% Al and ≤0.01% N, and, if required, comprising at least one kind selected from ≤3.5% Ni, ≤1% Cu, ≤0.3% Mo and 0.0005 to 0.005% B, and/or at least one kind selected from 0.005 to 0.05% Ti and 0.005 to 0.05% Nb, and in which carbon equivalent: Ceq=C+Si/7+Mn/6+Cr/9 is ≤0.50%, and the balance iron with inevitable impurities. In its production method, the steel having the above componential composition is hot-rolled, so as to be a screw stock with a prescribed diameter, and the screw stock is cold-forged, is thereafter formed into a screw shape, and is subjected to quenching/tempering treatment.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于高强度螺杆的钢，并提供一种使用该钢的高强度螺杆的制造方法。解决方案：用于高强度螺杆的钢具有质量分数为0.07-0.15％的C，≤0.2％的Si，0.5到2％的Mn，≤0.015％的P，≤0.015％的S，≤2％（不包括零）Cr，0.005〜0.08％的Al和≤0.01％的N，如果需要，包括选自≤3.5％Ni，≤1％Cu，≤0.3％Mo和0.0005-0.005％B中的至少一种，和/或选自0.005〜0.05％Ti和0.005〜0.05％Nb中的至少一种，其中碳当量Ceq = C + Si / 7 + Mn / 6 + Cr / 9为≤0.50％，余量铁与不可避免的杂质。在其制造方法中，将具有上述组分组成的钢热轧，以规定直径的螺杆坯料冷锻，然后形成螺杆形状，淬火/回火处理。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2012237040A Steel for automotive suspension spring component, automotive suspension spring component, and method for manufacturing the same 有权
标题翻译：用于汽车悬挂弹簧部件的钢，汽车悬架弹簧部件及其制造方法
公开(公告)号：JP2012237040A
公开(公告)日：2012-12-06
申请号：JP2011107513
申请日：2011-05-12
申请人： Jfe Bars & Shapes Corp , Jfe条鋼株式会社 , Nhk Spring Co Ltd , 日本発條株式会社
发明人： KIKUCHI KATSUHIKO , TOMITA KUNIKAZU , FUKUOKA KAZUAKI , HATTORI KAZUAKI , TANGE AKIRA , KURIMOTO KIYOSHI , GOTO YURIKA
IPC分类号： C22C38/00 , C21D9/02 , C22C38/58 , C22C38/60 , F16F1/02
CPC分类号： B60G21/055 , B60G99/00 , B60G2206/427 , B60G2206/724 , B60G2206/8103 , B60G2206/81035 , B60G2206/8401 , B60G2206/8402 , C21D1/18 , C21D1/40 , C21D1/42 , C21D6/005 , C21D7/06 , C21D8/065 , C21D9/0075 , C21D9/02 , C21D2211/002 , C21D2211/008 , C22C38/00 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/42 , C22C38/48 , C22C38/50 , C22C38/58 , C22C38/60 , Y02P10/253
摘要： PROBLEM TO BE SOLVED: To provide steel for an automotive suspension spring component that improves corrosion resistance of the material itself, has high strength, such as tensile strength of at least 1,300 MPa, and has excellent corrosion resistance and low temperature toughness, and to provide an automotive suspension spring component, and a method for manufacturing the same.SOLUTION: The steel for an automotive suspension spring component includes 0.15-0.35 mass% of C, more than 0.6 mass% and not more than 1.5 mass% of Si, 1-3 mass% of Mn, 0.3-0.8 mass% of Cr, 0.005-0.080 mass% of sol. Al, 0.005-0.060 mass% of Ti, 0.005-0.060 mass% of Nb, not more than 150 ppm of N, not more than 0.035 mass% of P, not more than 0.035 mass% of S, 0.01-1.00 mass% of Cu, and 0.01-1.00 mass% of Ni, with the remainder comprising Fe and unavoidable impurities, wherein Ti+Nb≤0.07 mass%, and has excellent corrosion resistance and low temperature toughness with the tensile strength of at least 1,300 MPa.
摘要翻译：要解决的问题：为了提供改善材料本身的耐腐蚀性的汽车悬架弹簧部件用钢，具有高强度，例如至少1300MPa的拉伸强度，并且具有优异的耐腐蚀性和低温韧性，并提供一种汽车悬架弹簧部件及其制造方法。解决方案：用于汽车悬架弹簧部件的钢包括C：0.15-0.35质量％，Si：0.6质量％以下，1.5质量％以下，Mn：1-3质量％，Mn：0.3〜0.8质量％的Cr，0.005-0.080质量％的溶胶。 Al，0.005-0.060质量％的Ti，0.005-0.060质量％的Nb，不大于150ppm的N，不大于0.035质量％的P，不大于0.035质量％的S，0.01-1.00质量％的 Cu和0.01〜1.00质量％的Ni，余量由Fe和不可避免的杂质构成，Ti +Nb≤0.07质量％，耐拉伸强度为1300MPa以上，耐腐蚀性和低温韧性优异。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2005350736A High-strength steel having superior corrosion resistance and fatigue characteristics for spring, and manufacturing method therefor 有权
标题翻译：具有优异耐腐蚀性和耐疲劳特性的高强度钢，及其制造方法
公开(公告)号：JP2005350736A
公开(公告)日：2005-12-22
申请号：JP2004173421
申请日：2004-06-11
申请人： Jfe Bars & Shapes Corp , Jfe条鋼株式会社
发明人： SHIRAGAMI TETSUO , KIKUCHI KATSUHIKO
IPC分类号： C21D9/02 , C22C38/00 , C22C38/60
CPC分类号： Y02P10/212
摘要： PROBLEM TO BE SOLVED: To provide a high-strength steel for a spring, which is manufactured by using mainly scrap for a raw material, and has superior corrosion resistance and fatigue characteristics; and a manufacturing method therefor. SOLUTION: This high-strength steel comprises, by mass%, 0.45-0.7% C, 0.15-2.5% Si, 0.3-1% Mn, 0.015% or less P, 0.015% or less S, 0.3-2% Cu, 0.01-0.1% sol.Al, 0.1% to less than 0.5% Cr, 0.005-0.1% Ti, 0.1% or less Sn+Sb+As while satisfying (Sn+Sb+As)/Cu 2 +535*(([%Sn]+[%Sb]+[%As])/[%Cu])}, while [%Sn], [%Sb], [%As] and [%Cu] represent mass%; hot-rolling it; and then quenching and tempering it. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于主要使用废料作原料制造的弹簧用高强度钢，并且具有优异的耐腐蚀性和疲劳特性; 及其制造方法。解决方案：该高强度钢以质量％计含有0.45-0.7％的C，0.15-2.5％的Si，0.3-1％的Mn，0.015％或更少的P，0.015％或更少的S，0.3-2％ Cu，0.01-0.1％sol.Al，0.1％至小于0.5％Cr，0.005-0.1％Ti，0.1％或更少Sn + Sb + As，同时满足（Sn + Sb + As）/ Cu <0.05，一个或 Ni，Mo，V和Nb中的元素较多，Ceq≥0.90％，余量为不可避免的杂质。制造方法包括：在满足950≤T 2 +535 *（（[％Sn] + [％Sb] + [％As]）/ [％Cu]）} ，[％As]和[％Cu]表示质量％; 热轧然后淬火回火。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2008231444A Self-tapping screw for high-strength member 有权
标题翻译：用于高强度会员的自攻螺丝
公开(公告)号：JP2008231444A
公开(公告)日：2008-10-02
申请号：JP2007068021
申请日：2007-03-16
申请人： Jfe Bars & Shapes Corp , Jfe条鋼株式会社 , Komuro Manufacturing Co Ltd , Nippon Techno Sheen Kk , Osaka Seiko Kk , 大阪精工株式会社 , 日本テクノシェーン株式会社 , 株式会社粉室製作所
发明人： KIKUCHI KATSUHIKO , SHIRAGAMI TETSUO , KON MIKIO , MORIKAWA TSUTOMU , KOMURO MASANOBU , MITSUI SATORU , MIKI TOSHIMASA
IPC分类号： C22C38/00 , C21D9/00 , C22C38/58 , F16B25/00 , F16B35/00
摘要： PROBLEM TO BE SOLVED: To provide a high strength self-tapping screw for fastening, while forming a female screw, to a high strength member having ≥980 N/mm 2 . SOLUTION: A steel containing, by mass, 0.01-0.15% C, ≤0.2% Si, 0.8-2% Mn, ≤0.015% P, ≤0.015% S, 0.05-2% Cu, 0.05-2% Ni, 0.02-0.1% Al, ≤0.01% N and further, if necessary, one or more kinds of Nb, V, Cr, Mo, B and the balance Fe with inevitable impurities, is formed into a screw-shape with a cold-working after hot-rolling, and successively, a tempering treatment is performed after carburizing and quenching, and the surface hardness (HV1) of the screw satisfies the following formula and the internal hardness of the screw is >320 to 430 Hv and the hardness at 0.1 mm from the surface is ≥480 Hv and the old austenite crystal grain size in the internal metallic structure is set to be higher than No.8. HV1 ≥ HV2, wherein HV1 is the surface hardness (Vickers hardness) of the screw and HV2 is a value as rounded off value which can be obtained by äTS×3/9.81+160}×1.3; and TS is tensile strength (N/mm 2 ) of a steel plate to be fastened. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种高强度自攻螺钉，用于在形成内螺纹的同时，将其紧固到具有≥980N/ mm 2 的高强度构件。
解决方案：一种含有0.01-0.15％C，≤0.2％Si，0.8-2％Mn，≤0.015％P，≤0.015％S，0.05-2％Cu，0.05-2％Ni ，0.02-0.1％Al，≤0.01％N，如果需要，还可以将一种或多种Nb，V，Cr，Mo，B和余量的Fe与不可避免的杂质形成为螺旋形状，在热轧后进行加工，然后在渗碳淬火后进行回火处理，螺杆的表面硬度（HV1）满足下式，螺杆的内部硬度为320〜430Hv，硬度表面0.1mm≥480Hv，内部金属结构中的老奥氏体晶粒尺寸设定为高于8号。 HV1≥HV2，其中HV1是螺杆的表面硬度（维氏硬度），HV2是通过äTS×3 / 9.81 + 160}×1.3得到的舍入值的值。 TS为要紧固的钢板的拉伸强度（N / mm×SP> 2 ）。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2006249458A High strength steel excellent in delayed fracture resistance and method for manufacturing the same 有权
$High strength steel excellent in delayed fracture resistance and method for manufacturing the same$
标题翻译：延长耐断裂韧性的高强度钢及其制造方法
公开(公告)号：JP2006249458A
公开(公告)日：2006-09-21
申请号：JP2005064317
申请日：2005-03-08
申请人： Honda Motor Co Ltd , Jfe Bars & Shapes Corp , Jfe条鋼株式会社 , 本田技研工業株式会社
发明人： MATSUDA HIDEKI , MIZUNO YOSHIKI , KIKUCHI KATSUHIKO , SHIRAGAMI TETSUO
IPC分类号： C22C38/00 , C21D9/00 , C21D9/02 , C22C38/14 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a high strength steel excellent in delayed fracture resistance, having a tensile strength of ≥1,500 MPa and suitable for automotive parts, various industrial machine parts, etc., and a method for manufacturing the same.
SOLUTION: The high strength steel consists of, by mass, >0.4 to 0.6% C, 5 to 12% Ni, 0.01-0.1% sol. Al, 0.001-0.1% Ti, ≤0.02% N, ≤0.01% P, ≤0.01% S, one or more selected from 0.1-1% Cu, 0.1-1% Cr, 0.02-1% Mo, 0.0001-0.005% B, 0.0005-0.005% Ca and 0.0005-0.005% Mg, and the balance Fe with inevitable impurities. The steel preferably has an old austenite grain size of ≤15 μm.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供抗拉强度≥1,500MPa并且适用于汽车部件，各种工业机械部件等的耐延迟断裂性优异的高强度钢及其制造方法。解决方案：高强度钢以质量计含有> 0.4至0.6％的C，<0.2％的Si，0.1-1.0％的Mn，> 5至12％的Ni，0.01-0.1％的溶胶。 Al，0.001-0.1％Ti，≤0.02％N，≤0.01％P，≤0.01％S，选自0.1-1％Cu，0.1-1％Cr，0.02-1％Mo，0.0001-0.005％ B，0.0005-0.005％Ca和0.0005-0.005％Mg，余量为Fe与不可避免的杂质。优选钢的老奥氏体粒径≤15μm。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2010185109A Steel superior in corrosion resistance and low-temperature toughness for high-strength stabilizer for vehicle, manufacturing method therefor and stabilizer 有权
标题翻译：用于车辆的高强度稳定器的耐腐蚀性和低温韧性的钢铁，其制造方法和稳定剂
公开(公告)号：JP2010185109A
公开(公告)日：2010-08-26
申请号：JP2009030173
申请日：2009-02-12
申请人： Jfe Bars & Shapes Corp , Jfe条鋼株式会社 , Nhk Spring Co Ltd , 日本発條株式会社
发明人： KIKUCHI KATSUHIKO , TOMITA KUNIKAZU , TAMAI YUTAKA , HATTORI KAZUAKI , INOUE KANJI , TANGE AKIRA , MORI NORIHIKO , GOTO YURIKA , KURIMOTO KIYOSHI
IPC分类号： C22C38/00 , B60G21/055 , C21D9/00 , C22C38/58 , C22C38/60
CPC分类号： C22C38/02 , C21D1/25 , C21D1/28 , C21D9/0075 , C21D9/08 , C21D2211/002 , C21D2211/008 , C22C38/04 , C22C38/06 , C22C38/42 , C22C38/48 , C22C38/50 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a steel for a stabilizer for a vehicle, which has improved the corrosion resistance of the material itself, has such high strength as a tensile strength of 1,100 MPa or more and is superior in corrosion resistance and low-temperature toughness, and to provide a manufacturing method therefor. SOLUTION: The steel superior in corrosion resistance and low-temperature toughness for the high-strength stabilizer for the vehicle comprises, by mass%, 0.07-0.20% C, more than 0.6% and equal to or less than 1.5% Si, 1-3% Mn, 0.1-1.0% Cr, 0.005-0.080% sol. Al, 0.005-0.060% Ti, 0.005-0.060% Nb, 0.070% or less Ti+Nb, 150 ppm or less N, 0.035% or less P, 0.035% or less S, 0.01-1.00% Cu, 0.01-1.00% Ni, and the balance Fe with unavoidable impurities; has a structure which is formed of any of bainite, martensite, or a mixture structure of bainite/martensite, before being formed into a stabilizer; and has former austenite crystal grains of which the grain size is 9 or more by the grain size number after the stabilizer has been heat-treated. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种提高材料本身的耐腐蚀性的用于车辆用稳定剂的钢，具有抗拉强度为1100MPa以上的高强度，耐腐蚀性优异，低温韧性，并提供其制造方法。解决方案：用于车辆的高强度稳定剂的耐腐蚀性和低温韧性优异的钢以质量％计含有0.07-0.20％C，大于0.6％且等于或小于1.5％的Si ，1-3％Mn，0.1-1.0％Cr，0.005-0.080％溶胶。 Al，0.005-0.060％Ti，0.005-0.060％Nb，0.070％以下Ti + Nb，150ppm以下N，0.035％以下P，0.035％以下S，0.01〜1.00％Cu，0.01〜1.00％ Ni，余量为Fe与不可避免的杂质; 具有在形成稳定剂之前由贝氏体/马氏体或贝氏体/马氏体的混合结构中的任何一种形成的结构体; 并且在稳定剂热处理后具有晶粒尺寸为9以上的原奥氏体晶粒的粒径数。版权所有（C）2010，JPO＆INPIT

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