Method and device for producing long metal tubes

Details Method and device for producing long metal tubes Method and device for producing long metal tubes

1997-11-05

2000-02-22

Heinrich, Samuel M.

Metal fusion bonding

Process

With shaping

228148, 228 175, 242167, 242423, B21C 3708, B21C 37083

Patent

active

06027011&

ABSTRACT:
During the production of long metal tubes with small diameters, where a metal tape is drawn from an annular coil, is gradually formed into a tube with a longitudinal slot and the longitudinal slot is welded, the internally and externally located metal tape ends of a number of annular coils are interconnected by welding, and the annular coils are horizontally positioned on tension rings which are attached to a rotatable take-up drum. The metal tape with the welded ends is drawn off without interruption.

REFERENCES:
patent: 1475258 (1923-11-01), Bundy
patent: 3399450 (1968-09-01), Mize
patent: 4367839 (1983-01-01), Angerer
patent: 4582271 (1986-04-01), Takahashi
patent: 5191911 (1993-03-01), Dubois

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