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    • 7. 发明申请
    • HIGH CARBON STEEL SHEET WITH SUPERIOR HEAT TREATMENT CHARACTERISTICS, AND MANUFACTURING METHOD THEREOF
    • 具有超级热处理特性的高碳钢板及其制造方法
    • WO2010074463A8
    • 2011-03-24
    • PCT/KR2009007625
    • 2009-12-21
    • POSCOLEE CHANG-HOONJEON JEA-CHUNLEE JONG-SUBKIM KI-SOO
    • LEE CHANG-HOONJEON JEA-CHUNLEE JONG-SUBKIM KI-SOO
    • C22C38/00C21D8/02
    • C21D1/32C21D8/02C21D8/0205C21D9/46
    • The present invention provides a method for manufacturing a high carbon steel sheet, comprising the steps of i) producing a high carbon slab having a chemical composition comprising, by wt%, C 0.3-1.0%, Mn:0.1-1.2%, Si: more than 0 but less than 0.4%, Al: 0.01-0.1%, S: more than 0 but not more than 0.01%, the remainder being Fe and inevitable impurities ii) reheating the slab to the temperature higher than the Ar3 transformation point, iii) rough-milling the slab, and milling the slab again in an austenite region having a temperature higher than the Ar3 transformation point to produce a steel sheet, iv) cooling the steel sheet on a run-out table by the cooling speed of 50°C/second to 300°C/second, v) finishing the steel sheet cooling process at a temperature of 400-650°C, and maintaining the temperature, vi) winding the steel sheet at a temperature of 450-700°C, vii) omitting a pre-annealing process, and cold-rolling the wound steel sheet by a reduction ratio of 30% or higher; and viii) spheroidizing the cold-rolled steel sheet.
    • 本发明提供一种高碳钢板的制造方法,其特征在于,包括以下工序:i)制造具有化学组成的高碳钢板,所述化学成分以重量%计含有0.3〜1.0%,Mn:0.1〜1.2%,Si: 大于0但小于0.4%,Al:0.01-0.1%,S:大于0但不大于0.01%,其余为Fe和不可避免的杂质ii)将板坯加热至高于Ar3相变点的温度, iii)对板坯进行粗铣,并在温度高于Ar3相变点的奥氏体区再次研磨板坯,以产生钢板,iv)将冷却速度为50的钢板 ℃至300℃/秒,v)在400-650℃的温度下完成钢板冷却过程,并维持温度,vi)将钢板卷绕在450-700℃的温度下, vii)省略预退火工艺,并且以30%以上的压下率冷轧卷绕的钢板; 和viii)球化冷轧钢板。
    • 9. 发明申请
    • MULTIFUNCTIONAL EXERCISE EQUIPMENT
    • 多功能运动器材
    • WO2011055963A3
    • 2011-11-03
    • PCT/KR2010007693
    • 2010-11-03
    • KIM KI-SOOKIM YOUNG-SOOK
    • KIM KI-SOOKIM YOUNG-SOOK
    • A63B21/02A63B23/02A63B23/12
    • A63B21/023A63B21/0455A63B23/0211A63B23/0233
    • The present disclosure relates to exercise equipment, and particularly, has the aim of providing multifunctional exercise equipment capable of strengthening the abdominal muscles, shoulder muscles, waist muscles, etc., with one piece of exercise equipment. To achieve the above aim, the multifunctional exercise equipment of the present disclosure is technically characterized in that it comprises: frames curved at the center of the length thereof, with both ends oriented toward one side; and joints connecting both ends of the frames and supporting the frames by means of resilient force of resilient members built therein, wherein when a force greater than the resilient force is exerted against the frames, the frames are opened or folded.
    • 本公开涉及运动器材,特别地,其目的是提供能够用一块运动器材强化腹肌,肩肌,腰肌等的多功能运动器材。 为了实现上述目的,本发明的多功能锻炼设备的技术特征在于,它包括:在其长度的中心弯曲的框架,其两端朝向一侧; 以及连接框架的两端并通过内置弹性构件的弹力来支撑框架的接头,其中当大于弹性力的力施加在框架上时,框架被打开或折叠。
    • 10. 发明申请
    • HIGH CARBON STEEL SHEET WITH SUPERIOR HEAT TREATMENT CHARACTERISTICS, AND MANUFACTURING METHOD THEREOF
    • 具有优良热处理特性的高碳钢板及其制造方法
    • WO2010074463A3
    • 2010-08-12
    • PCT/KR2009007625
    • 2009-12-21
    • POSCOLEE CHANG HOONJEON JEA-CHUNLEE JONG-SUBKIM KI-SOO
    • JEON JEA-CHUNLEE JONG-SUBKIM KI-SOO
    • C22C38/00C21D8/02
    • C21D1/32C21D8/02C21D8/0205C21D9/46
    • The present invention provides a method for manufacturing a high carbon steel sheet, comprising the steps of i) producing a high carbon slab having a chemical composition comprising, by wt%, C 0.3-1.0%, Mn:0.1-1.2%, Si: more than 0 but less than 0.4%, Al: 0.01-0.1%, S: more than 0 but not more than 0.01%, the remainder being Fe and inevitable impurities ii) reheating the slab to the temperature higher than the Ar3 transformation point, iii) rough-milling the slab, and milling the slab again in an austenite region having a temperature higher than the Ar3 transformation point to produce a steel sheet, iv) cooling the steel sheet on a run-out table by the cooling speed of 50°C/second to 300°C/second, v) finishing the steel sheet cooling process at a temperature of 400-650°C, and maintaining the temperature, vi) winding the steel sheet at a temperature of 450-700°C, vii) omitting a pre-annealing process, and cold-rolling the wound steel sheet by a reduction ratio of 30% or higher; and viii) spheroidizing the cold-rolled steel sheet.
    • 本发明提供一种高碳钢板的制造方法,其特征在于,包括以下工序:i)制造以重量%计含有C:0.3〜1.0%,Mn:0.1〜1.2%,Si: 大于0但小于0.4%,Al:0.01-0.1%,S:大于0但不大于0.01%,余量为Fe和不可避免的杂质ii)将钢坯再加热至高于Ar3转变点的温度, iii)将板坯粗粉碎,然后在温度高于Ar3转变点的奥氏体区域中再次研磨板坯以生产钢板,iv)在退出台上以冷却速度50冷却钢板 ℃/秒至300℃/秒,v)在400-650℃的温度下完成钢板冷却过程并保持温度,vi)将钢板卷绕在450-700℃的温度下, vii)省略预退火处理,并且以30%或更高的压缩比冷轧卷绕的钢板; 和viii)使冷轧钢板球化。