Welded steel pipe manufacturing apparatus and method

Details Welded steel pipe manufacturing apparatus and method Welded steel pipe manufacturing apparatus and method

1996-06-10

1997-10-07

Larson, Lowell A.

Metal deforming

By tool-couple pressing together adjacent surface portions...

To form longitudinally-seamed tube

72 144, 72 214, B21D 3902, B21D 5123, B21B 3700, B21B 3708

Patent

active

056735790

ABSTRACT:
In welded pipe manufacturing a steel strip is fed and bent by forming rolls into a pipe. A load detector is provided for a roll rotary shaft of each forming roll; a forming roll inclination adjustment device inclines the roll rotary shaft. The roll shaft load is measured to cause inclining of the rotary shaft counterclockwise or clockwise on a plane formed by the rotational axis of the forming roll and the advancing direction of the steel strip.

REFERENCES:
patent: 1163975 (1915-12-01), Cromwell
patent: 4697446 (1987-10-01), Yamamoto et al.
patent: 4747289 (1988-05-01), Nakamura
patent: 4776194 (1988-10-01), Chang

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