High-strength wire rod excellent in drawing characteristics and method of manufacturing the same
    6.
    发明授权
    High-strength wire rod excellent in drawing characteristics and method of manufacturing the same 有权
    高强度线材的拉拔特性优良的制造方法

    公开(公告)号:US08308875B2

    公开(公告)日:2012-11-13

    申请号:US11922154

    申请日:2007-04-18

    Abstract: The invention provides wire rod excellent in drawability and steel wire made from the wire rod as starting material with high productivity at good yield and low cost. A hard steel wire rod of a specified composition is hot rolled, the hot-rolled steel is coiled in a specified temperature range, and the coiled steel is subjected to patenting at a predetermined cooling rate, thereby affording a high-carbon steel wire excellent in workability. It is high-strength steel wire excellent in drawability comprising a pearlite structure of an area ratio of 97% or greater and the balance of non-pearlite structures including bainite, degenerate-pearlite and pro-eutectoid ferrite and having a pearlite block size of not less than 20 μm and not greater than 45 μm. The invention also provides a high-carbon steel wire excellent in ductility, which is manufactured by subjecting the wire rod to intermediate patenting and cold drawing and has a tensile strength of 2800 MPa or greater.

    Abstract translation: 本发明提供了拉伸性优良的线材和由线材制成的钢丝作为起始原料,生产率高,成品率低,成本低。 对特定组成的硬质钢线材进行热轧,在规定的温度范围内卷取热轧钢,并以规定的冷却速度对卷取钢进行专利化处理,得到优质的高碳钢丝 可操作性。 是具有97%以上的面积率的珠光体组织和包含贝氏体,退火 - 珠光体和前共析铁素体的非珠光体组织的平衡,并且具有珠光体块大小不等的高拉伸强度的高强度钢丝 小于20μm且不大于45μm。 本发明还提供了一种延展性优异的高碳钢丝,其通过对线材进行中间授权和冷拉制而得到的拉伸强度为2800MPa以上。

    HIGH-STRENGTH STEEL MATERIAL WITH EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE
    8.
    发明申请
    HIGH-STRENGTH STEEL MATERIAL WITH EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE 有权
    具有优异耐腐蚀性的高强度钢材

    公开(公告)号:US20110268600A1

    公开(公告)日:2011-11-03

    申请号:US13183710

    申请日:2011-07-15

    Abstract: The invention provides a steel material with satisfactory hydrogen embrittlement resistance, and particularly it relates to high-strength steel with satisfactory hydrogen embrittlement resistance and a strength of 1200 MPa or greater, as well as a process for production thereof. At least one simple or compound deposit of oxides, carbides or nitrides as hydrogen trap sites which trap hydrogen with a specific trap energy is added to steel, where the mean sizes, number densities, and length-to-thickness ratios (aspect ratio) are in specific ranges. By applying the specific steel components and production process it is possible to obtain high-strength steel with excellent hydrogen embrittlement resistance.

    Abstract translation: 本发明提供具有令人满意的耐氢脆性的钢材,特别涉及具有良好的耐氢脆性和1200MPa以上的强度的高强度钢及其制造方法。 将至少一种简单或复合的氧化物,碳化物或氮化物沉积物作为捕集具有特定阱能量的氢的氢捕集点添加到钢中,其中平均尺寸,数量密度和长度与厚度比(纵横比) 在特定范围内。 通过应用特定的钢部件和制造方法,可以获得耐氢脆性优异的高强度钢。

    High-Strength Wire Rod Excellent in Drawing Characteristics and Method of Manufacturing the Same
    10.
    发明申请
    High-Strength Wire Rod Excellent in Drawing Characteristics and Method of Manufacturing the Same 有权
    高强度线材优良的拉拔特性及其制造方法

    公开(公告)号:US20090277545A1

    公开(公告)日:2009-11-12

    申请号:US11922154

    申请日:2007-04-18

    Abstract: The invention provides wire rod excellent in drawability and steel wire made from the wire rod as starting material with high productivity at good yield and low cost. A hard steel wire rod of a specified composition is hot rolled, the hot-rolled steel is coiled in a specified temperature range, and the coiled steel is subjected to patenting at a predetermined cooling rate, thereby affording a high-carbon steel wire excellent in workability. It is high-strength steel wire excellent in drawability comprising a pearlite structure of an area ratio of 97% or greater and the balance of non-pearlite structures including bainite, degenerate-pearlite and pro-eutectoid ferrite and having a pearlite block size of not less than 20 μm and not greater than 45 μm. The invention also provides a high-carbon steel wire excellent in ductility, which is manufactured by subjecting the wire rod to intermediate patenting and cold drawing and has a tensile strength of 2800 MPa or greater.

    Abstract translation: 本发明提供了拉伸性优良的线材和由线材制成的钢丝作为起始原料,生产率高,成品率低,成本低。 对特定组成的硬质钢线材进行热轧,在规定的温度范围内卷取热轧钢,并以规定的冷却速度对卷取钢进行专利化处理,得到优质的高碳钢丝 可操作性。 是具有97%以上的面积率的珠光体组织和包含贝氏体,退火 - 珠光体和前共析铁素体的非珠光体组织的平衡,并且具有珠光体块大小不等的高拉伸强度的高强度钢丝 小于20mum且不大于45mum。 本发明还提供了一种延展性优异的高碳钢丝,其通过对线材进行中间授权和冷拉制而得到的拉伸强度为2800MPa以上。

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