Tubular shape finishing apparatus for an electro-resistance-weld

Details Tubular shape finishing apparatus for an electro-resistance-weld Tubular shape finishing apparatus for an electro-resistance-weld

1996-01-04

1997-03-04

Ramsey, Kenneth J.

Metal fusion bonding

With means to deform work, filler, or flux portion before...

Comprising means forming one-piece blank into a tubular shape

228 175, B23K 3102, B23K10106

Patent

active

056070985

ABSTRACT:
A tubular shape finishing apparatus in a steel pipe manufacturing system which molds band steel in a tubular shape while passing through a plurality of sets of forming roll stands and welds the butt portion by a seam welding unit, the tubular shape finishing apparatus welding the pipe by a seam welding unit, cutting off padding by a bead cutter, finishing and shaping the same into a shape of a desired diameter, and to be about an complete round, and comprising one or two of 3-roll forcible drive type stand or 3 or more roll forcible drive type stands disposed in series.

REFERENCES:
patent: 3707257 (1972-12-01), Wogerbauer et al.
patent: 4339938 (1982-07-01), Nakagawa et al.
patent: 4614293 (1986-09-01), Pazzaglia et al.
patent: 4709845 (1987-12-01), Akiyama et al.
patent: 4865243 (1989-09-01), Meier

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