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1. 发明申请

US20110303327A1 STEEL WIRE MATERIAL FOR SPRING AND ITS PRODUCING METHOD 有权
标题翻译：用于弹簧的钢丝材料及其生产方法
公开(公告)号：US20110303327A1
公开(公告)日：2011-12-15
申请号：US13172270
申请日：2011-06-29
申请人： Nao YOSHIHARA , Fujio Koizumi , Hirokazu Inoue , Katsuya Takaoka , Shoji Miyazaki , Sayaka Nagamatsu
发明人： Nao YOSHIHARA , Fujio Koizumi , Hirokazu Inoue , Katsuya Takaoka , Shoji Miyazaki , Sayaka Nagamatsu
IPC分类号： B32B15/01 , C22C38/28 , C22C38/34 , C22C38/24 , B32B15/02 , C22C38/42 , C22C38/50 , C22C38/22 , C21D9/02 , C21D11/00 , C22C38/20 , C22C38/26
CPC分类号： C22C38/02 , C21D8/06 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/28 , C22C38/42 , C22C38/46 , C22C38/50 , Y10T428/12958
摘要： The steel wire material for a spring of the invention contains; C: 0.37-0.54%, Si: 1.7-2.30%, Mn: 0.1-1.30%, Cr: 0.15-1.1%, Cu: 0.15-0.6%, Ti: 0.010-0.1%, Al: 0.003-0.05%, and the balance including iron with inevitable impurities, wherein ferrite decarburized layer depth is 0.01 mm or less, whole decarburized layer depth is 0.20 mm or less, and fracture reduction of area is 25% or more. It alternately may contain; C: 0.38-0.47%, Si: 1.9-2.5%, Mn: 0.6-1.3%, Ti: 0.05-0.15%, Al: 0.003-0.1%, and the balance including iron with inevitable impurities, wherein ferrite decarburized layer depth is 0.01 mm or less, Ceq1 in the equation (1) below is 0.580 or more, Ceq2 in the equation (2) below is 0.49 or less, and Ceq3 in the equation (3) below is 0.570 or less. Ceq1=[C]+0.11[Si]−0.07[Mn]−0.05[Ni]+0.02[Cr] (1) Ceq2=[C]+0.30[Cr]−0.15[Ni]−0.70[Cu] (2) Ceq3=[C]−0.04[Si]+0.24[Mn]+0.10[Ni]+0.20[Cr]−0.89[Ti]−1.92[Nb] (3) (In the above equations, [ ] shows the content (mass %) of each element in steel.)
摘要翻译：本发明的弹簧钢丝材料包含： C：0.37-0.54％，Si：1.7-2.30％，Mn：0.1-1.30％，Cr：0.15-1.1％，Cu：0.15-0.6％，Ti：0.010-0.1％，Al：0.003-0.05％余量包括铁与不可避免的杂质，其中铁素体脱碳层深度为0.01mm以下，整个脱碳层深度为0.20mm以下，面积的断裂减少为25％以上。它可以包含; C：0.38-0.47％，Si：1.9-2.5％，Mn：0.6-1.3％，Ti：0.05-0.15％，Al：0.003-0.1％，余量包括铁与不可避免的杂质，其中铁素体脱碳层深度为 0.01以下时，式（1）中的Ceq1为0.580以上，式（2）中的Ceq2为0.49以下，下述式（3）中的Ceq3为0.570以下。 Ceq1 = [C] +0.11 [Si] -0.07 [Mn] -0.05 [Ni] +0.02 [Cr]（1）Ceq2 = [C] +0.30 [Cr] -0.15 [Ni] -0.70 [Cu] ）Ceq3 = [C] -0.04 [Si] +0.24 [Mn] +0.10 [Ni] +0.20 [Cr] -0.89 [Ti] -1.92 [Nb]（3）（在上述等式中，[] （质量％））

2. 发明申请

US20090020189A1 STEEL WIRE MATERIAL FOR SPRING AND ITS PRODUCING METHOD 审中-公开
标题翻译：用于弹簧的钢丝材料及其生产方法
公开(公告)号：US20090020189A1
公开(公告)日：2009-01-22
申请号：US12171807
申请日：2008-07-11
申请人： Nao YOSHIHARA , Fujio Koizumi , Hirokazu Inoue , Katsuya Takaoka , Shoji Miyazaki , Sayaka Nagamatsu
发明人： Nao YOSHIHARA , Fujio Koizumi , Hirokazu Inoue , Katsuya Takaoka , Shoji Miyazaki , Sayaka Nagamatsu
IPC分类号： C21D11/00 , C22C38/20 , C22C38/42 , C22C38/34 , C22C38/02 , C21D9/02
CPC分类号： C22C38/02 , C21D8/06 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/28 , C22C38/42 , C22C38/46 , C22C38/50 , Y10T428/12958
摘要： The steel wire material for a spring of the invention contains; C: 0.37-0.54%, Si: 1.7-2.30%, Mn: 0.1-1.30%, Cr: 0.15-1.1%, Cu: 0.15-0.6%, Ti: 0.010-0.1%, Al: 0.003-0.05%, and the balance including iron with inevitable impurities, wherein ferrite decarburized layer depth is 0.01 mm or less, whole decarburized layer depth is 0.20 mm or less, and fracture reduction of area is 25% or more. It alternately may contain; C: 0.38-0.47%, Si: 1.9-2.5%, Mn: 0.6-1.3%, Ti: 0.05-0.15%, Al: 0.003-0.1%, and the balance including iron with inevitable impurities, wherein ferrite decarburized layer depth is 0.01 mm or less, Ceq1 in the equation (1) below is 0.580 or more, Ceq2 in the equation (2) below is 0.49 or less, and Ceq3 in the equation (3) below is 0.570 or less. Ceq1=[C]+0.11[Si]−0.07[Mn]−0.05[Ni]+0.02[Cr] (1) Ceq2=[C]+0.30[Cr]−0.15[Ni]−0.70[Cu] (2) Ceq3=[C]−0.04[Si]+0.24[Mn]+0.10[Ni]+0.20[Cr]−0.89[Ti]−1.92[Nb] (3) (In the above equations, [ ] shows the content (mass %) of each element in steel.)
摘要翻译：本发明的弹簧钢丝材料包含： C：0.37-0.54％，Si：1.7-2.30％，Mn：0.1-1.30％，Cr：0.15-1.1％，Cu：0.15-0.6％，Ti：0.010-0.1％，Al：0.003-0.05％余量包括铁与不可避免的杂质，其中铁素体脱碳层深度为0.01mm以下，整个脱碳层深度为0.20mm以下，面积的断裂减少为25％以上。它可以包含; C：0.38-0.47％，Si：1.9-2.5％，Mn：0.6-1.3％，Ti：0.05-0.15％，Al：0.003-0.1％，余量包括铁与不可避免的杂质，其中铁素体脱碳层深度为 0.01以下时，式（1）中的Ceq1为0.580以上，式（2）中的Ceq2为0.49以下，下述式（3）中的Ceq3为0.570以下。 Ceq1 = [C] +0.11 [Si] -0.07 [Mn] -0.05 [Ni] +0.02 [Cr]（1）在线式公式描述=“In-line formula”end =“lead” <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> Ceq2 = [C] + 0.30 [Cr] -0.15 [Ni] -0.70 [Cu]（2）<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In Ceq3 = [C] -0.04 [Si] +0.24 [Mn] +0.10 [Ni] +0.20 [Cr] -0.89 [Ti] -1.92 [Nb]（3）？in-line-formula description =“In-line Formulas”end =“tail”？>（在上式中，[]表示钢中各元素的含量（质量％））

3. 发明授权

US08382918B2 Steel wire material for spring and its producing method 有权
标题翻译：弹簧钢丝材料及其制造方法
公开(公告)号：US08382918B2
公开(公告)日：2013-02-26
申请号：US13172270
申请日：2011-06-29
申请人： Nao Yoshihara , Fujio Koizumi , Hirokazu Inoue , Katsuya Takaoka , Shoji Miyazaki , Sayaka Nagamatsu
发明人： Nao Yoshihara , Fujio Koizumi , Hirokazu Inoue , Katsuya Takaoka , Shoji Miyazaki , Sayaka Nagamatsu
IPC分类号： C21D9/02 , C21D11/00 , C22C38/00 , B32B15/00 , C25D5/10
CPC分类号： C22C38/02 , C21D8/06 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/28 , C22C38/42 , C22C38/46 , C22C38/50 , Y10T428/12958
摘要： The steel wire material for a spring of the invention contains; C: 0.37-0.54%, Si: 1.7-2.30%, Mn: 0.1-1.30%, Cr: 0.15-1.1%, Cu: 0.15-0.6%, Ti: 0.010-0.1%, Al: 0.003-0.05%, and the balance including iron with inevitable impurities, wherein ferrite decarburized layer depth is 0.01 mm or less, whole decarburized layer depth is 0.20 mm or less, and fracture reduction of area is 25% or more. It alternately may contain; C: 0.38-0.47%, Si: 1.9-2.5%, Mn: 0.6-1.3%, Ti: 0.05-0.15%, Al: 0.003-0.1%, and the balance including iron with inevitable impurities, wherein ferrite decarburized layer depth is 0.01 mm or less.
摘要翻译：本发明的弹簧钢丝材料包含： C：0.37-0.54％，Si：1.7-2.30％，Mn：0.1-1.30％，Cr：0.15-1.1％，Cu：0.15-0.6％，Ti：0.010-0.1％，Al：0.003-0.05％余量包括铁与不可避免的杂质，其中铁素体脱碳层深度为0.01mm以下，整个脱碳层深度为0.20mm以下，面积的断裂减少为25％以上。它可以包含; C：0.38-0.47％，Si：1.9-2.5％，Mn：0.6-1.3％，Ti：0.05-0.15％，Al：0.003-0.1％，余量包括铁与不可避免的杂质，其中铁素体脱碳层深度为 0.01mm以下。

4. 发明申请

US20070125455A1 SPRING STEEL WIRE ROD EXCELLENT IN PICKLING PERFORMANCE 审中-公开
标题翻译：弹簧钢丝绳优良的性能
公开(公告)号：US20070125455A1
公开(公告)日：2007-06-07
申请号：US11548080
申请日：2006-10-10
申请人： Nao YOSHIHARA , Fujio Koizumi
发明人： Nao YOSHIHARA , Fujio Koizumi
IPC分类号： C22C38/42
CPC分类号： C22C38/42 , C21D8/065 , C21D9/02 , C22C38/04 , C22C38/34 , C22C38/46 , C22C38/50
摘要： A spring steel wire rod according to the present invention is a spring steel wire rod wherein: the spring steel wire rod contains C: 0.35% to 0.7% (by mass, the same is hereunder applied), Si: 1.5% to 2.50%, Mn: 0.05% to 1.0%, Cr: 0.05% to 1.9%, Cu: 0.05% to 0.7%, Ni: 0.15% to 0.8%, P: 0.02% or less (excluding 0%), S: 0.02% or less (excluding 0%); and the balance being Fe and unavoidable impurities, wherein the ratio of Si to Cu (Si/Cu) is in the range of 4 or more; and the difference between the concentration of Cu in the surface layer and the concentration of Cu in the steel is 0.50% or less and the difference between the concentration of Ni in the surface layer and the concentration of Ni in the steel is 1.00% or less. The present invention makes it possible to improve pickling performance in a spring steel wire rod containing Si abundantly and further Cr, Cu, and Ni.
摘要翻译：根据本发明的弹簧钢线材是弹簧钢线材，其中：弹簧钢线材包含C：0.35％至0.7％（按质量计，下同），Si：1.5％至2.50％ Mn：0.05〜1.0％，Cr：0.05〜1.9％，Cu：0.05〜0.7％，Ni：0.15〜0.8％，P：0.02％以下（不含0％），S：0.02％以下（不包括0％）; 余量为Fe和不可避免的杂质，其中Si与Cu（Si / Cu）的比例在4以上的范围内; 表层中的Cu浓度与钢中Cu的浓度之差为0.50％以下，表层的Ni浓度与钢中的Ni的浓度之差为1.00％以下。通过本发明，能够提高含有Si，Cu，Ni的Si的弹簧钢线材的酸洗性能。

5. 发明授权

US09267183B2 Wire with excellent suitability for drawing and process for producing the same 有权
标题翻译：电线具有优良的适用性，适用于绘图和加工生产
公开(公告)号：US09267183B2
公开(公告)日：2016-02-23
申请号：US12279000
申请日：2006-11-07
申请人： Takuya Kochi , Shogo Murakami , Shoji Miyazaki , Ken Ishida , Masao Toyama , Fujio Koizumi
发明人： Takuya Kochi , Shogo Murakami , Shoji Miyazaki , Ken Ishida , Masao Toyama , Fujio Koizumi
IPC分类号： C21D9/52 , C21D3/06 , C21D8/06 , C22C38/00 , C22C38/04 , C22C38/20 , C22C38/28 , C22C38/34 , C22C38/42 , C22C38/50 , B21B1/16 , B21B3/00
CPC分类号： C21D3/06 , B21B1/16 , B21B3/00 , C21D8/065 , C21D9/525 , C22C38/002 , C22C38/04 , C22C38/20 , C22C38/28 , C22C38/34 , C22C38/42 , C22C38/50
摘要： A hot-rolled wire rod excelling in wire drawability is provided, in which breakage can be suppressed even in heavy work from a large diameter. A hot-rolled wire rod contains C: 0.35 to 0.65% (percent by mass, hereinafter expressed as well), Si: 1.4 to 3.0%, Mn: 0.10 to 1.0%, Cr: 0.1 to 2.0%, P: 0.025% or less (exclusive of 0%), S: 0.025% or less (exclusive of 0%), N: 0.006% or less (exclusive of 0%), Al: 0.1% or less (exclusive of 0%), and O: 0.0030% or less (exclusive of 0%), with the remnant consisting of Fe and inevitable impurities; wherein the content of hydrogen in steel is 2.50 ppm (ppm by mass, hereinafter expressed as well) or less, and hardness (HV) is 460×C00.1 or less (C0 indicates the content of C (percent by mass) in a position of depth of D/4 (D: diameter of the wire rod)).
摘要翻译：提供了一种具有良好的拉丝性的热轧线材，其中即使在大直径的重工作中也能够抑制破损。热轧线材含有C：0.35〜0.65％（质量％，以下也表示），Si：1.4〜3.0％，Mn：0.10〜1.0％，Cr：0.1〜2.0％，P：0.025％较少（不含0％），S：0.025％以下（不含0％），N：0.006％以下（不含0％），Al：0.1％以下（不含0％），O： 0.0030％以下（不含0％），残留物由Fe和不可避免的杂质组成; 钢中的氢含量为2.50ppm（质量ppm，以下也表示）以下，硬度（HV）为460×C00.1以下（C0表示a的含量（质量％）） D / 4深度位置（D：线材直径））。

6. 发明申请

US20090007998A1 WIRE WITH EXCELLENT SUITABILITY FOR DRAWING AND PROCESS FOR PRODUCING THE SAME 有权
标题翻译：具有优异的适用性的线条及其制造方法
公开(公告)号：US20090007998A1
公开(公告)日：2009-01-08
申请号：US12279000
申请日：2006-11-07
申请人： Takuya Kochi , Shogo Murakami , Shoji Miyazaki , Ken Ishida , Masao Toyama , Fujio Koizumi
发明人： Takuya Kochi , Shogo Murakami , Shoji Miyazaki , Ken Ishida , Masao Toyama , Fujio Koizumi
IPC分类号： C21D9/52 , C22C38/34 , C22C38/20 , C22C38/22 , C22C38/32
CPC分类号： C21D3/06 , B21B1/16 , B21B3/00 , C21D8/065 , C21D9/525 , C22C38/002 , C22C38/04 , C22C38/20 , C22C38/28 , C22C38/34 , C22C38/42 , C22C38/50
摘要： A hot-rolled wire rod excelling in wire drawability is provided, in which breakage can be suppressed even in heavy work from a large diameter. A hot-rolled wire rod contains C: 0.35 to 0.65% (percent by mass, hereinafter expressed as well), Si: 1.4 to 3.0%, Mn: 0.10 to 1.0%, Cr: 0.1 to 2.0%, P: 0.025% or less (exclusive of 0%), S: 0.025% or less (exclusive of 0%), N: 0.006% or less (exclusive of 0%), Al: 0.1% or less (exclusive of 0%), and O: 0.0030% or less (exclusive of 0%), with the remnant consisting of Fe and inevitable impurities; wherein the content of hydrogen in steel is 2.50 ppm (ppm by mass, hereinafter expressed as well) or less, and hardness (HV) is 460×C00.1 or less (C0 indicates the content of C (percent by mass) in a position of depth of D/4 (D: diameter of the wire rod)).
摘要翻译：提供了一种具有良好的拉丝性的热轧线材，其中即使在大直径的重工作中也能够抑制破损。热轧线材含有C：0.35〜0.65％（质量％，以下也表示），Si：1.4〜3.0％，Mn：0.10〜1.0％，Cr：0.1〜2.0％，P：0.025％较少（不含0％），S：0.025％以下（不含0％），N：0.006％以下（不含0％），Al：0.1％以下（不含0％），O： 0.0030％以下（不含0％），残留物由Fe和不可避免的杂质组成; 钢中的氢含量为2.50ppm（质量ppm，以下也表示）以下，硬度（HV）为460×0.001以下（C0表示C（质量％）的含量深度D / 4（D：线材直径））。

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