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    • 10. 发明授权
    • 철근의 나사부 가공방법
    • 用于连接混凝土强化部分的成形方法
    • KR100820184B1
    • 2008-04-08
    • KR1020070018206
    • 2007-02-23
    • 주식회사부원비엠에스
    • 김상구
    • B21H3/02B21H3/00B23G1/02E04C5/16
    • B21H3/04B23G1/02E04C5/16
    • A method for forming a screw part of a steel reinforcement is provided to improve productivity and secure tensile strength of steel reinforcement joints by reducing the total forming time although the swaging process is carried out, enable a screw forming operation to be conducted in a state that diameter of steel reinforcement joints passing through the pre-treatment process is always maintained to a predetermined size, and prevent forming defects of screw threads in the form rolling process by forming the steel reinforcement joints into a round cross-sectional shape. In forming a screw part on an end portion of each of the steel reinforcements to connect steel reinforcements to each other in the longitudinal direction, a method for forming a screw part of a steel reinforcement comprises: a steel reinforcement joint pressurizing process(S100) of forming a steel reinforcement joint on which the screw part is to be formed in each steel reinforcement; a cutting process(S200) of cutting a surface of the steel reinforcement joint formed in the steel reinforcement joint pressurizing process; and a form rolling process(S300) of forming a screw part on the steel reinforcement joint passing through the cutting process. The steel reinforcement joint pressurizing process includes a swaging process, and swaging is applied to the steel reinforcement joint one to five times in the process. The cutting process of cutting the surface of the steel reinforcement joint comprises remove a projection part generated in the steel reinforcement joint pressurizing process. The cutting process and the form rolling process are carried out successively on one forming equipment on which cutting tools and form rolling tools are sequentially arranged.
    • 提供了一种用于形成钢筋的螺纹部分的方法,以便通过缩短整个成形时间来提高生产率并且确保钢筋接头的拉伸强度,尽管进行锻造工艺,能够在螺纹成形操作 通过预处理过程的钢筋接缝的直径总是保持在预定的尺寸,并且通过将钢筋接头形成为圆形横截面形状来防止在轧制过程中形成螺纹的缺陷。 在每个钢加强件的端部上形成螺纹部分以将钢筋加强件沿长度方向彼此连接时,用于形成钢筋的螺纹部分的方法包括:钢筋接头加压过程(S100) 形成钢筋接头,在每个钢筋中要形成螺纹部分; 切割加工接头加压过程中形成的钢筋接头的表面的切割过程(S200); 以及在通过切割过程的钢筋接头上形成螺纹部的成形轧制工序(S300)。 钢筋接头加压工艺包括锻造工艺,在加固过程中将钢筋接头施加一到五次。 切割钢筋接头表面的切割过程包括去除在钢筋接头加压过程中产生的突出部分。 切割过程和成形轧制过程在一个成形设备上连续进行,在该成形设备上顺序地布置有切割工具和形成轧制工具。