Welding process for aluminum or chrome diffusion-coated steel

Details Welding process for aluminum or chrome diffusion-coated steel Welding process for aluminum or chrome diffusion-coated steel

1975-07-07

1976-05-25

Smith, Al Lawrence

Metal fusion bonding

Process

Plural filler applying

228263, B23K 510, B23K 3530

Patent

active

039587436

ABSTRACT:
In conducting the butt welding of a coated steel produced by applying a diffusion coating with aluminum or chromium on the surface of a chromium-molybdenum steel as the base metal, adoption of a process comprising welding the diffusion-coating side of said coated steel with a ferritic high chrome steel to begin with, next welding it with a molybdenum steel or chromium-molybdenum steel selected on the bases of the content of chromium and the content of molybdenum in the base metal, and lastly welding it with the same material as the base metal, varieties of such drawbacks as would ordinarily arise from the weld zone can be avoided.

REFERENCES:
patent: 2054939 (1936-09-01), Larson
patent: 2815436 (1957-12-01), Bland
patent: 2879376 (1959-03-01), Petrovich
patent: 3135047 (1964-06-01), Houser
patent: 3476909 (1969-11-01), Kameda et al.

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