Steel wire for high strength spring excellent in workability and high strength spring
    1.
    发明申请
    Steel wire for high strength spring excellent in workability and high strength spring 有权
    用于高强度弹簧的钢丝绳,加工性和弹簧强度高

    公开(公告)号:US20060201588A1

    公开(公告)日:2006-09-14

    申请号:US10549753

    申请日:2004-03-25

    IPC分类号: C22C38/18

    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。

    Steel wire for high strength spring excellent in workability and high strength
    2.
    发明授权
    Steel wire for high strength spring excellent in workability and high strength 有权
    用于高强度弹簧的钢丝绳,加工性和弹簧强度高

    公开(公告)号:US08007716B2

    公开(公告)日:2011-08-30

    申请号:US10549753

    申请日:2004-03-25

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

    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。

    Oil tempered steel wire excellent in coiling workability and method for production thereof
    4.
    发明申请
    Oil tempered steel wire excellent in coiling workability and method for production thereof 审中-公开
    卷取加工性优良的回火钢丝及其制造方法

    公开(公告)号:US20060088710A1

    公开(公告)日:2006-04-27

    申请号:US10543627

    申请日:2003-12-26

    IPC分类号: D02G3/00

    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。