Explosion-welded pipe joint

Details Explosion-welded pipe joint Explosion-welded pipe joint

1989-09-05

1991-01-01

Heinrich, Sam

Metal fusion bonding

Process

Using explosive energy

228108, 228109, B23K 2008

Patent

active

049812505

ABSTRACT:
The invention relates to a method of producing explosion-welded joints between the pipe or pipe lines. By carefully evaluating and testing the configuration of the ends of the pipes to be joined and also the functioning of the charge system, together with a system for encapsulating the charge and for determining the position of the charge during a welding sequence, it has been possible to provide a practical and reproduceable system which escapes the drawbacks of partial and poor weld bonds, cold-work hardening of the pipe material, and surface damage encountered with known systems of this kind. The method has been applied and tested on ferritic stainless material, so-called Duplex material, and on all carbon steel grades used in the production of pipe lines.

REFERENCES:
patent: 3455017 (1969-07-01), Zondag
patent: 3985279 (1976-10-01), Wilson
patent: 4231506 (1980-11-01), Istvanffy et al.
patent: 4809902 (1989-03-01), Persson
patent: 4815649 (1989-03-01), Delersjo 228109

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