Method of preparing a metal substrate for use in a catalytic con

Details Method of preparing a metal substrate for use in a catalytic con Method of preparing a metal substrate for use in a catalytic con

1980-04-14

1981-11-17

Shine, W. J.

Metal treatment

Compositions

Heat treating

72147, 252477R, 228173C, 228193, 228220, 228263F, 422180, C23C 1100, B23K 2000

Patent

active

043009565

ABSTRACT:
Metallic bodies having discontinuously contacting sheet surfaces such as convolute-wound corrugated
on-corrugated metal sheet auto catalyst supports having metal-to-metal diffusion bonds formed at the contacting surfaces are provided. The diffusion bonds formed at the contacting surfaces are provided. The diffusion bonds are produced by heating the body in a non-oxidizing atmosphere, whereby metal from one surface diffuses into the metal from an adjacent surface. Some bonds may also be formed by welding. The bond-formation step may be performed in tandem with a subsequent step of oxidizing the sheet surfaces where they are not bonded, e.g. for making them into a more effectively-adhesive substrate for the catalyst they are to bear.

REFERENCES:
patent: 3966646 (1976-06-01), Noakes et al.
patent: 3992330 (1976-11-01), Noakes et al.
patent: 4098722 (1978-07-01), Cairns et al.
patent: 4186172 (1980-01-01), Scholz

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