首页> 外国专利> Method of preparation of the edges of the sheet in the process of shaping of the tubes in the press said uo and apparatus for implementing it.

Method of preparation of the edges of the sheet in the process of shaping of the tubes in the press said uo and apparatus for implementing it.

机译:在所述压榨机中的管的成形过程中制备片材边缘的方法及其实施装置。

摘要

The preparation of the edge of a steel plate for the production of a steel tube by bending into a U shape and into an O shape and by subsequent expansion to centre the tube is performed by bending the steel plate in the longitudinal direction at the longitudinal edges followed by bending into a U shape in the course of the tube production process, a pressure force being used to bend the edges, which are, in particular, those of a thick steel plate, and the area of application being extended to the production of a thick steel tube without the formation of sharp burrs on the seam.
机译:通过弯曲成U形和O形并随后膨胀以使管居中来制备用于制造钢管的钢板的边缘,这是通过在纵向边缘上沿纵向弯曲钢板来进行的。随后在管材生产过程中弯曲成U形,用压力使边缘(尤其是厚钢板的边缘)弯曲,并且将应用范围扩展到生产厚的钢管,在接缝上没有形成尖锐的毛刺。

著录项

  • 公开/公告号FR2475945B1

    专利类型

  • 公开/公告日1985-10-11

    原文格式PDF

  • 申请/专利权人 NIPPON KOKAN KK;

    申请/专利号FR19810002827

  • 发明设计人

    申请日1981-02-13

  • 分类号B21D5/10;B21C37/08;

  • 国家 FR

  • 入库时间 2022-08-22 07:56:21

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