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公开(公告)号:EP4434732A1
公开(公告)日:2024-09-25
申请号:EP23164128.3
申请日:2023-03-24
申请人: Bellapipe Oy
发明人: SAARINEN, Timo , HELLSTÉN, Ari
CPC分类号: B29C65/3428 , B29C65/4815 , B29C65/3468 , B29C66/1122 , B29C66/5221 , B29C66/0242 , B29C66/91441 , F16L47/03 , B29C66/71 , B29C65/5057 , B29C66/116
摘要: Installation method for a welding ring (2), comprising the steps:
· providing a first (3) and a second pipe arranged to be joined together coaxially such that one end of the second pipe surrounds one end of the first pipe (3)
· preheating and setting a welding ring (2) having a body and at least one resistance wire wound around the body and being encased by a plastic sheath, into a sealing groove (5) on the outside of the first pipe (3),
· assembling one end of the second pipe onto the end of the first pipe (3) equipped with the welding ring (2) and
· connecting the ends (6) of the at least one resistance wire of the welding ring (2) to an electrical power source (7) in order provide a current to heat the welding ring (2) and achieve a material bond of the welding ring (2) with the surrounding pipe walls.