Method for manufacturing galvanized bar segments, in particular

Details Method for manufacturing galvanized bar segments, in particular Method for manufacturing galvanized bar segments, in particular

1994-02-09

1995-01-17

Albritton, C. L.

Electric heating

Metal heating

By arc

219159, B23K 2600

Patent

active

053827716

ABSTRACT:
To render more economical the manufacture of galvanized bar segments 10 illustratively used for three-dimensional frameworks, the components of the bar segments 10, namely the hollow bar 11 and the end pieces 12, are galvanized before being assembled. The ring welds between the galvanized components 11, 12 are implemented by laser welding. Because of the high energy density of the laser welding beam and on account of the narrow ring-weld seams 18 so formed, a zinc coating 24 supplied from the zinc coats 22 of the adjacent components 11, 12 is created during welding and covers each surface 25 of the ring-weld seams, as a result of which, following welding, the bar segment 10 also is provided with a zinc coating 24 covering the surfaces 25 of the ring-weld seams protecting them against corrosion.

REFERENCES:
patent: 5183991 (1993-02-01), Arai

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