公开(公告)号：US20060088710A1

公开(公告)日：2006-04-27

申请号：US10543627

申请日：2003-12-26

申请人： Tadayoshi Fujiwara ,  Tetsuo Jinbo ,  Fumio Yamamoto

发明人： Tadayoshi Fujiwara ,  Tetsuo Jinbo ,  Fumio Yamamoto

IPC分类号： D02G3/00

CPC分类号： B21C37/04 ,  C23C22/62 ,  C23C28/00 ,  C23C30/00 ,  Y10T428/2913

摘要： An oil tempered wire, characterized in that it comprises a wire material and, formed on the surface thereof, a coating film comprising one or more inorganic salts selected from the group consisting of a sulfate, a silicate and a borate. The coating film optionally further comprises fats and oils and/or a soap exhibiting lubricity. The oil tempered wire has a coating film exhibiting satisfactory heat resistance and good lubricity and thus can secure good coiling workability even in the case of a high strength wire or a wire having a heteromorphic section.

摘要翻译： 一种油回火丝，其特征在于，其包括线材，并且在其表面上形成包含一种或多种选自硫酸盐，硅酸盐和硼酸盐的无机盐的涂膜。 涂膜任选地还包含油脂和/或表现出润滑性的皂。 油回火丝具有表现出良好的耐热性和良好润滑性的涂膜，因此即使在高强度丝线或具有异型部分的丝线的情况下，也可以确保良好的卷取加工性。

公开(公告)号：US20060201588A1

公开(公告)日：2006-09-14

申请号：US10549753

申请日：2004-03-25

申请人： Sumie Suda ,  Nobuhiko Ibaraki ,  Noritoshi Takamura ,  Naoki Terakado ,  Satoru Tendo ,  Tadayoshi Fujiwara ,  Tetsuo Jinbo

发明人： Sumie Suda ,  Nobuhiko Ibaraki ,  Noritoshi Takamura ,  Naoki Terakado ,  Satoru Tendo ,  Tadayoshi Fujiwara ,  Tetsuo Jinbo

IPC分类号： C22C38/18

CPC分类号： C22C38/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/34 ,  C22C38/44

摘要： A steel wire has tempered martensite, comprises, as essential components, by mass, C: 0.53 to 0.68%; Si: 1.2 to 2.5%; Mn: 0.2 to 1.5%; Cr: 1.4 to 2.5%; Al: 0.05% or less; further comprises, as a selective component, Ni: 0.4% or less; V: 0.4% or less; Mo: 0.05 to 0.5%; or Nb: 0.05 to 0.5%; and further comprises remainder essentially consisting of Fe and inevitable impurities, wherein the grain size number of prior austenite is 11.0 or larger, and the proof stress ratio (σ0.2/σB), namely, a ratio of 0.2% proof stress (σ0.2) to tensile strength (σB) is 0.85 or lower. Satisfying the above requirements makes it possible to produce a steel wire for high-strength spring excellent both in workability (cold workability), and in sag resistance and fatigue properties.

摘要翻译： 钢丝具有回火马氏体，以质量计C为0.53〜0.68％为必要成分。 Si：1.2〜2.5％ Mn：0.2〜1.5％ Cr：1.4〜2.5％ Al：0.05％以下; 进一步包含Ni：0.4％以下的选择性组分; V：0.4％以下; Mo：0.05〜0.5％ 或Nb：0.05〜0.5％ 并且还包含基本上由Fe和不可避免的杂质组成的剩余部分，其中原奥氏体的晶粒数为11.0或更大，并且证明应力比（σσ0.2 /σ2 / ），即0.2％屈服应力（σ<0.2％）与拉伸强度（σσB）之比为0.85以下。 满足上述要求，可以生产出在加工性（冷加工性）以及抗下垂性和疲劳性方面优异的高强度弹簧钢丝。

公开(公告)号：US08007716B2

公开(公告)日：2011-08-30

申请号：US10549753

申请日：2004-03-25

申请人： Sumie Suda ,  Nobuhiko Ibaraki ,  Noritoshi Takamura ,  Naoki Terakado ,  Satoru Tendo ,  Tadayoshi Fujiwara ,  Tetsuo Jinbo

发明人： Sumie Suda ,  Nobuhiko Ibaraki ,  Noritoshi Takamura ,  Naoki Terakado ,  Satoru Tendo ,  Tadayoshi Fujiwara ,  Tetsuo Jinbo

IPC分类号： C22C38/18 ,  C22C38/00 ,  C23C8/26

CPC分类号： C22C38/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/34 ,  C22C38/44

摘要： A steel wire has tempered martensite, comprises, as essential components, by mass, C: 0.53 to 0.68%; Si: 1.2 to 2.5%; Mn: 0.2 to 1.5%; Cr: 1.4 to 2.5%; Al: 0.05% or less; further comprises, as a selective component, Ni: 0.4% or less; V: 0.4% or less; Mo: 0.05 to 0.5%; or Nb: 0.05 to 0.5%; and further comprises remainder essentially consisting of Fe and inevitable impurities, wherein the grain size number of prior austenite is 11.0 or larger, and the proof stress ratio (σ0.2/σB), namely, a ratio of 0.2% proof stress (σ0.2) to tensile strength (σB) is 0.85 or lower. Satisfying the above requirements makes it possible to produce a steel wire for high-strength spring excellent both in workability (cold workability), and in sag resistance and fatigue properties.

摘要翻译： 钢丝具有回火马氏体，以质量计C为0.53〜0.68％为必要成分。 Si：1.2〜2.5％ Mn：0.2〜1.5％ Cr：1.4〜2.5％ Al：0.05％以下; 进一步包含Ni：0.4％以下的选择性组分; V：0.4％以下; Mo：0.05〜0.5％ 或Nb：0.05〜0.5％ 并且还包含基本上由Fe和不可避免的杂质组成的剩余部分，其中原奥氏体的晶粒数为11.0以上，并且证明应力比（＆Sgr 0.2 /＆Sgr; B），即0.2％屈服应力 ＆sgr; 0.2）拉伸强度（＆amp; B）为0.85以下。 满足上述要求，可以生产出在加工性（冷加工性）以及抗下垂性和疲劳性方面优异的高强度弹簧钢丝。

公开(公告)号：US07074282B2

公开(公告)日：2006-07-11

申请号：US10204406

申请日：2001-12-19

申请人： Nobuhiko Ibaraki ,  Atushi Inada ,  Sumie Suda ,  Noritoshi Takamura ,  Satoru Tendoh ,  Tadayoshi Fujiwara ,  Tetsuo Jinbo

发明人： Nobuhiko Ibaraki ,  Atushi Inada ,  Sumie Suda ,  Noritoshi Takamura ,  Satoru Tendoh ,  Tadayoshi Fujiwara ,  Tetsuo Jinbo

IPC分类号： C22C38/00

CPC分类号： F16F1/021 ,  C21D1/20 ,  C21D7/06 ,  C21D8/065 ,  C21D9/02 ,  C21D9/525 ,  C21D2211/009 ,  C22C38/04 ,  C22C38/34 ,  C22C38/46

摘要： Disclosed is a steel wire rod for hard-drawn springs capable of exhibiting fatigue strength and sag resistance equivalent to or higher than springs made of an oil-tempered wire. The steel wire rod contains carbon in a range from 0.5 to less than 0.7 mass %, silicon in a range from 1.4 to 2.5 mass %, manganese in a range from 0.5 to 1.5 mass %, chromium in a range from 0.05 to 2.0 mass %, and vanadium in a range from 0.05 to 0.40 mass %, and has an area ratio Rp with respect to pearlite which satisfies the mathematical expression (1): Rp(area %)≧55×[C]+61  (1) where [C] denotes the content (mass %) of carbon.

摘要翻译： 公开了一种用于硬拉伸弹簧的钢线材，其能够表现出与由油回火丝制成的弹簧相当或更高的疲劳强度和下垂阻力。 该钢线材含有0.5〜0.7质量％的碳，1.4〜2.5质量％的硅，0.5〜1.5质量％的锰，0.05〜2.0质量％的铬， ，和0.05〜0.40质量％的范围的钒，相对于满足数学式（1）的珠光体的面积比Rp：＆lt;＆lt; in-line-formula description =“In-line formula”end =“ （“）”> Rp（面积％）> = 55×[C] +61（1）<？在线公式描述=“在线公式”end =“tail”？>其中[C] 质量％）的碳。

公开(公告)号：US4889567A

公开(公告)日：1989-12-26

申请号：US214817

申请日：1988-07-01

申请人： Tadayoshi Fujiwara ,  Yukio Yamaoka ,  Kazuichi Hamada ,  Yoshiro Yamada ,  Yasunobu Kawaguchi ,  Yasuhiro Oki ,  Takashi Taniguchi ,  Hiroyuki Takahashi

发明人： Tadayoshi Fujiwara ,  Yukio Yamaoka ,  Kazuichi Hamada ,  Yoshiro Yamada ,  Yasunobu Kawaguchi ,  Yasuhiro Oki ,  Takashi Taniguchi ,  Hiroyuki Takahashi

IPC分类号： C21D8/06 ,  C21D8/08 ,  C22C38/00 ,  C22C38/04 ,  C22C38/18 ,  C22C38/38

CPC分类号： C22C38/00 ,  C21D8/06

摘要： Wire rods containing an adequate quantity of C within the range from 0.70 to 1.00%, Si from 0.5 to 3.0%, Mn from 0.30 to 2.0%, Cr from 0.10 to 0.5%, Al from 0.030 to 0.10% and N from 0.004 to 0.015% and unavoidable impurities, and with Fe for all the rest are subjected to re-heat patenting to increase the tensile strength to 135 kgf/mm.sup.2 or higher, then are drawn by adequately selecting the conditions, number of times of drawing in the range from 7 to 16 times, drawings speed from 50 to 550 m/minute, extent of drawing form 70-90, and water cooling immediately after each drawing to manufacture steel wires of high strength and high toughness.The wires are used as PC wires, steel wires for skewed bridge cables, steel stranded wires, spring wires, main cable wires for extra-long suspension bridge large diameter wires for core of aluminum cables steel reinforced (transmission cable), and as galvanized steel wires for such applications.

摘要翻译： 含有足够量的C为0.70〜1.00％，Si为0.5〜3.0％，Mn为0.30〜2.0％，Cr为0.10〜0.5％，Al为0.030〜0.10％，N为0.004〜0.015的线棒 ％和不可避免的杂质，所有其余的Fe都经过再热加权授权，以将拉伸强度提高到135kgf / mm2或更高，然后通过充分选择条件，拉拔次数从 7至16次，图纸速度为50〜550米/分钟，拉伸形状为70〜90度，每次拉伸后立即进行水冷，制造出高强度，高韧性的钢丝。 电线用作PC线，斜桥电缆用钢丝绳，钢丝绞线，弹簧线，超长悬索桥用主电缆线，铝电缆钢绞线（传输电缆）芯线，以及镀锌钢丝 电线用于这种应用。