发明授权
- 专利标题: Welding rod
- 专利标题(中): 焊条
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申请号: US144303申请日: 1993-10-28
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公开(公告)号: US5407520A公开(公告)日: 1995-04-18
- 发明人: Ernest O. Butts , Nicholas E. Butts , Robert Pinder
- 申请人: Ernest O. Butts , Nicholas E. Butts , Robert Pinder
- 申请人地址: CAX Nepean
- 专利权人: E. O. Butts Consultants Ltd.
- 当前专利权人: E. O. Butts Consultants Ltd.
- 当前专利权人地址: CAX Nepean
- 主分类号: B29C63/24
- IPC分类号: B29C63/24 ; B29C65/00 ; B29C65/34 ; B29C65/36 ; B29C70/82 ; B29D23/00 ; B32B31/00
摘要:
An improved welding rod having a solid homogeneous core of thermoplastic material and a resistance element comprised of a plurality of wires is presented with a method and apparatus for forming the welding rod. The welding rod is positioned between members of the thermoplastic material to be welded and a current and pressure is applied to the resistance element causing the thermoplastic material of the solid core and the adjacent thermoplastic members to fuse and form a unitary weld. Simultaneously the electrical resistance element is embedded in the weld, mechanically reinforcing and strengthening the connection. There is also disclosed a method for electric fusion welding of thermoplastic members wherein the welding rod is pre-attached to one of the thermoplastic members.