쌍정 유기 소성 강의 수소지연파괴 저항성 향상 방법
    2.
    发明公开
    쌍정 유기 소성 강의 수소지연파괴 저항성 향상 방법 无效
    改进TWIP钢中氢延迟断裂电阻

    公开(公告)号:KR1020110038843A

    公开(公告)日:2011-04-15

    申请号:KR1020090096015

    申请日:2009-10-09

    CPC classification number: C21D7/04 C21D6/005 C21D2211/008 C21D2261/00

    Abstract: PURPOSE: A method of enhancing resistance to the hydrogen delayed destruction of TWIP steel is provided to enhance durability and to ensure stability by enhancing resistance to the hydrogen delayed destruction of super-strength TWIP steel. CONSTITUTION: A method of enhancing resistance to the hydrogen delayed destruction of TWIP steel is as follows. A martensitic phase change layer is removed from the surface of a steel member. The phase change layer is removed by surface milling. The surface milling is done by grinding or cutting.

    Abstract translation: 目的:提高对TWIP钢的氢延迟破坏的抵抗力的方法,以提高耐久性,并通过增强对超强度TWIP钢的氢延迟破坏的抵抗力来确保稳定性。 构成:提高对TWIP钢的氢延迟破坏的抵抗力的方法如下。 从钢构件的表面除去马氏体相变层。 通过表面研磨除去相变层。 通过研磨或切割进行表面铣削。

    냉간 압조성이 우수한 고강도 고망간 강선재와 그 제조방법 및 상기 강선재를 이용한 볼트의 제조방법
    3.
    发明公开
    냉간 압조성이 우수한 고강도 고망간 강선재와 그 제조방법 및 상기 강선재를 이용한 볼트의 제조방법 有权
    具有优良冷头质量的高强度和高锰钢丝绳及其制造方法以及使用其制造螺栓的方法

    公开(公告)号:KR1020120104021A

    公开(公告)日:2012-09-20

    申请号:KR1020110022061

    申请日:2011-03-11

    Abstract: PURPOSE: A high-strength and high-Mn steel wire rod with excellent cold forging property, a manufacturing method thereof, and a bolt manufacturing method using the same are provided to reduce the weight of parts by excluding a heat treatment process and utilizing the steel wire rod for the parts. CONSTITUTION: A method for manufacturing a high-strength and high-Mn steel wire rod with excellent cold forging property comprises the steps of: heating steel including Mn of 12-25wt.% to 1100-1250°C, hot rolling the heated steel at 700-1100°C, cooling the hot rolled steel below 200°C, and cold caliber-rolling or drawing the steel into a steel wire rod. [Reference numerals] (AA) Temperature(°C); (BB) 1200°C heating; (CC) 1100°C hot rolling; (DD) Cold caliber-rolling or drawing; (EE) Time(t)

    Abstract translation: 目的:提供一种具有优异的冷锻性能的高强度高Mn钢线材,其制造方法和使用该高强度Mn的钢丝绳螺栓制造方法,通过排除热处理工艺并利用钢来减少部件的重量 线材为零件。 构成:制造具有优异的冷锻性能的高强度高Mn钢丝线的方法包括以下步骤:将包括Mn在12-25wt。%的钢加热至1100-1250℃,将加热的钢热轧 700-1100℃,将热轧钢冷却至200℃以下,冷口径轧制或将钢拉成钢丝。 (标号)(AA)温度(℃); (BB)1200°C加热; (CC)1100°C热轧; (DD)冷口径轧制或拉丝; (EE)时间(t)

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