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    • 1. 发明授权
    • Fine spheroidized steel sheet with excellent heat treatment characteristic and method for manufacturing the same
    • 具有优异热处理特性的精细球状钢板及其制造方法
    • US08440030B2
    • 2013-05-14
    • US13141739
    • 2009-12-21
    • Chang-Hoon LeeJea-Chun JeonJong-Sub LeeKi-Soo Kim
    • Chang-Hoon LeeJea-Chun JeonJong-Sub LeeKi-Soo Kim
    • C22C38/04C22C38/06C21D8/02
    • C21D1/32C21D8/02C21D8/0205C21D9/46
    • A method for manufacturing a fine spheroidized steel sheet having an excellent heat treatment characteristic, the method including: i) manufacturing a high carbon slab that is formed of 0.3 to 1.0 wt % C, 0.1 to 1.2 wt % Mn, 0 to 0.4 wt % Si, 0.01 to 0.1 wt % Al, 0 to 0.01 wt % S, and balance Fe and an inevitably added impurity as residuals; ii) reheating the slab to a temperature of Ar3 transformation point or more; iii) roughing rolling the slab, and manufacturing a thin plate by performing finish rolling in an austenite region; iv) cooling the thin plate at a cooling speed of 50 to 300° C./sec; v) finishing the cooling of the thin plate at a temperature region of 400 to 650° C. and maintaining the temperature; vi) winding the thin plate at a temperature region of 450 to 700° C.; vii) performing cold rolling at a reduction ratio of 30% or more; and viii) spheroidizing annealing the cold rolled thin plate.
    • 一种制造具有优异的热处理特性的精细球化钢板的方法,该方法包括:i)制造由0.3-1.0wt%C,0.1-1.2wt%Mn,0-0.4wt% Si,0.01〜0.1重量%的Al,0〜0.01重量%的S,余量为Fe和不可避免地添加的杂质作为残留物; ii)将板坯加热至Ar3相变点以上的温度; iii)对板坯进行粗轧,并通过在奥氏体区域进行精轧制造薄板; iv)以50〜300℃/秒的冷却速度冷却薄板; v)在400至650℃的温度范围内完成薄板的冷却并保持温度; vi)将薄板卷绕在450-700℃的温度区域; vii)以30%以上的减速比进行冷轧; 和viii)对冷轧薄板进行球化退火。
    • 7. 发明申请
    • MULTIPURPOSE EXERCISE APPARATUS
    • 多用途运动装置
    • US20110269605A1
    • 2011-11-03
    • US13144055
    • 2009-07-28
    • Ki-Soo KimYoung-Sook Kim
    • Ki-Soo KimYoung-Sook Kim
    • A63B21/02A63B22/16A63B26/00
    • A63B22/20A61H7/001A61H2201/10A63B21/0442A63B21/0552A63B21/4035A63B22/14A63B22/16A63B23/0211A63B23/0227A63B23/0458A63B23/1236A63B26/003A63B2023/003A63B2023/006A63B2069/0062A63B2071/0063A63B2071/025A63B2208/0204A63B2208/0233A63B2208/0242A63B2209/10
    • The present invention relates to a multipurpose exercise apparatus. More specifically, the multipurpose exercise apparatus is configured so that various kinds of exercise can be done by turning a crescent-shaped main body up and down according to the kind of exercise desire by a user, and by stepping on the main body to mount thereon or sitting down thereon, thereby allowing exercise to be enjoyed regardless of place or time and to even be enjoyed outdoors in addition to indoors and the efficiency of exercise can be maximized even with simple exercise movements. The present invention is characterized in that it has a plate shape, and it comprises a main body (100), wherein a convex surface (10) is formed at the upper part, a concave surface (20) is formed at the lower part, a handle groove (12) is provided at both the terminal parts descending along the curvature of the convex surface (10), and a supporting protrusion (22) is integrally projected at the lower part of the handle groove (12) so as to allow the main body to be separated by a certain distance from the ground; and a handle (200) which is installed on one side of the upper convex surface (10) of the main body (100) and can be attached thereto or detached therefrom.
    • 本发明涉及多用途运动器材。 更具体地说,多功能锻炼装置被构造成能够通过根据使用者的运动欲望的种类上下转动新月形主体,并且通过踩在主体上而将其安装在其上来进行各种运动 或者坐在其上,从而允许无论地点或时间如何,都可以享受运动,甚至在室内除外享受户外活动,甚至在简单的运动运动中也能最大限度地提高运动效率。 本发明的特征在于其具有板形,并且其包括主体(100),其中在上部形成凸面(10),在下部形成有凹面(20) 在沿着凸面(10)的曲率下降的端子部分处设置有手柄槽(12),并且在手柄槽(12)的下部一体地突出有支撑突起(22),以便允许 主体与地面隔开一定距离; 以及安装在主体(100)的上凸面(10)的一侧上的手柄(200),并且可以安装到该主体(100)上或从其上拆下。