Pipe welding process using a metallic insert for improved corros

Details Pipe welding process using a metallic insert for improved corros Pipe welding process using a metallic insert for improved corros

1993-05-06

1994-11-29

Bradley, P. Austin

Metal fusion bonding

Process

With protecting of work or filler or applying flux

22826241, 428685, 219106, B23K 902

Patent

active

053682238

ABSTRACT:
Avoidance of the corrosion initiation sites consisting of Mn particles deposited on the TiG welded inner tube surface is achieved through suppression of emission of manganese fumes by addition of a protective non corrosive metallic layer. The latter melts during the welding and arises in a non-corrosive internal metallic coating of the welded zone.

REFERENCES:
patent: 385384 (1888-07-01), Thomson
patent: 2850798 (1958-09-01), Bowman et al.
"Arc Welding of Stainless Steel", Metals Handbook, 8th Edition, vol. 6, Aug. 1971, pp. 251-2.

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