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    • 56. 发明申请
    • HOLLOW PROFILE USED IN THE MANUFACTURE OF A PIPE
    • 在管道制造中使用的中空配置文件
    • WO2011089314A1
    • 2011-07-28
    • PCT/FI2011/050033
    • 2011-01-18
    • OY KWH PIPE ABSJÖBERG, SvenVESTMAN, Christian
    • SJÖBERG, SvenVESTMAN, Christian
    • B29C53/78F16L11/24
    • F16L9/16B29C53/78B29K2023/00B29K2105/16F16L9/12F16L9/18Y10T428/1352Y10T428/1372Y10T428/139Y10T428/1397Y10T428/24496
    • A hollow profile (1) used in the manufacture of a spirally wound double-walled thermo-plastic pipe, which hollow profile has essentially a rectangular cross section, two side walls (5) and an outer wall (3) and an inner wall (4) limiting a cavity (2) within. In the hollow profile the wall that is intended to form the inner wall (4) of the pipe is thicker than the wall (3) of the hollow profile intended to form the outer wall (3) of the pipe. The inner rounding radius (7) of the edges adjacent to the thicker wall (4) of the hollow profile is considerably larger than the rounding radius (6) of the two other edges of the cavity (6) and the inside surface of the thicker wall (4) comprises a rib (8) extending in the hollow cavity of the profile, on the side of the profile forming the inner side of the pipe, in the longitudinal direction of the profile at least essentially along the whole length of the profile.
    • 用于制造螺旋缠绕的双壁热塑管的中空型材(1),其中空型材具有基本上矩形的横截面,两个侧壁(5)和外壁(3)和内壁( 4)限制内腔(2) 在中空型材中,旨在形成管的内壁(4)的壁比用于形成管的外壁(3)的中空型材的壁(3)厚。 与中空型材的较厚壁(4)相邻的边缘的内部圆形半径(7)远大于空腔(6)的两个其它边缘的圆形半径(6),并且较厚的内表面 壁(4)包括在型材的中空腔中延伸的肋(8),其在形成管的内侧的轮廓的侧面上沿着轮廓的纵向至少基本上沿着轮廓的整个长度 。