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    • 4. 发明公开
    • Method of manufacturing a lining of polytetraflouroethylene (PTFE) for an expansion joint or similar flexible couplings, a PTFE lining and a tool for use in connection therewith
    • 一种用于可充气的密封件或类似的柔性联轴节,PTFE涂层制造聚四氟乙烯(PTFE)涂层,从而站立在连接工具过程
    • EP1190836A3
    • 2002-11-06
    • EP01203542.4
    • 2001-09-18
    • KE-BURGMANN A/S
    • Jacobsen, Finn Erik
    • B29C67/04B29C53/58F16L51/02
    • B29C53/585B29C43/18B29C53/581B29C53/62B29C53/824B29C67/04B29K2021/00B29K2027/18B29K2105/24
    • The invention concerns a method of manufacturing an internal lining of polytetraflouroethylene (PTFE) for an elastomer expansion joint or similar flexible couplings, whereby one or more unsintered tapes of PTFE or a PTFE-based material is/are wound around a rotary-symmetrical, non-cylindrical, positive forming tool whereby the tapes form a lining comprising a number of PTFE layers in a form which essentially corresponds to the desired internal shape of the elastomer expansion joint or a similar flexible coupling member, whereafter the lining is sintered and subsequently removed from the form by collapsing the self-locking shell of the forming tool by removing at least one retention member of the forming tool. The invention also relates to a forming tool for use in connection with the method. Hereby, it is possible to manufacture the lining in any kind of rotary-symmetrical shape. The form removal after the sintering process takes place by taking the forming tool apart. According to the invention, it is not necessary to carry out a mechanical deformation of the PTFE material which means that by using a method according to the invention, a more stable lining in any rotary-symmetric shape and with significantly improved chemical barrier properties may be obtained.
    • 本发明涉及制造聚四氟乙烯(PTFE)的内部衬里的方法为多个弹性伸缩接头或类似的柔性联轴节,,由此PTFE的一个或多个未烧结带或一个基于PTFE的材料被围绕一个旋转对称的,非创伤/ -cylindrical,正成形工具,由此带形成衬里在基本上对应于所述弹性体膨胀接头或类似的柔性连接件的期望的内部形状的形式,其包括数PTFE层,此后,衬里是烧结,并随后从除去 通过除去所述成形工具的至少一个保持构件折叠成形工具的自锁壳的形式。 因此,本发明涉及用于在与该方法结合使用的成形工具。 由此,能够制造衬里在任何类型的旋转对称形状的。 去除形式在烧结过程之后通过取成形工具分开发生。 。根据本发明,这是没有必要通过使用方法雅丁发明进行PTFE材料bedeutet,DASS的机械变形,在任何旋转对称的形状,并且具有显着改进的化学阻隔性能更稳定的衬里可以是 获得。