Methods for the manufacture of longitudinal-seam welded tubes

Details Methods for the manufacture of longitudinal-seam welded tubes Methods for the manufacture of longitudinal-seam welded tubes

1977-10-11

1980-04-08

Hunt, Brooks H.

Metal fusion bonding

Process

With shaping

228158, 428586, B23K 3106

Patent

active

041968387

ABSTRACT:
A method for the manufacture of longitudinal-seam welded tubes of substantial thickness is provided in which a strip of steel is curled to form a longitudinally slit tube and the slit is welded in a longitudinal-seam welding plant and in which the seam-welded tube thus produced is fed into a tandem arranged reducing mill, in which it is rolled in the longitudinal direction of the tube between the stands of the reducing mill without being subjected to longitudinal tension while at the same time its external diameter is reduced. A longitudinal seam-welded tube made by the method is claimed.

REFERENCES:
patent: 1984083 (1934-12-01), Riemenschneider
patent: 1996775 (1935-04-01), Sims
patent: 3075484 (1963-01-01), Benteler
patent: 3590622 (1971-07-01), Elge et al.

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