Method for making a joint between a main pipe and a branch pipe

Details Method for making a joint between a main pipe and a branch pipe Method for making a joint between a main pipe and a branch pipe

1992-12-10

1995-08-29

Bradley, P. Austin

Metal fusion bonding

Process

With shaping

228171, 1563046, 29890148, B23K10104, B23K 2000, B29C 6502

Patent

active

054453097

ABSTRACT:
In a method for making a joined pipe, a main pipe is cut so that two V-shaped edges of a right angle are formed in the diametrical positions on the periphery of the main pipe, and a branch pipe is cut so that two peaked edges of a right angle are formed in the diametrical positions on the periphery of the branch pipe. Then, the facets of the V-shaped edges and the peaked edges are fused by heating, and butt-welded under pressure.

REFERENCES:
patent: 1220770 (1917-03-01), Murray
patent: 3013925 (1961-12-01), Larsen
patent: 3254909 (1966-06-01), Ver Nooy
patent: 3616024 (1971-10-01), Windle
patent: 3634167 (1972-01-01), Plontke
patent: 4675965 (1987-06-01), Offringa et al.
patent: 4746056 (1988-05-01), Thomsen

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