Method and apparatus for welding tubular parts
作者： Hans W. Steinmetz , Dirk A. Petry
DOI:
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摘要: For welding tubular plastic parts (1) formed as a compound tube there is used element (20) which arranged with its inner peripheral surface (23) on projections (10) of the and reciprocally centers them. The has an annular part (21) heating coil (22) outer contour. strands laid in zig-zag shape are curved U-shape extend transversely to direction (21).
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