Diffusion coating through restrictions

Details Diffusion coating through restrictions Diffusion coating through restrictions

1981-02-02

1982-08-31

Hoffman, James R.

Coating processes

Interior of hollow article coating

Coating by vapor, gas, mist, or smoke

427239, 427250, 427252, B05D 722, B05D 714, C23C 1302

Patent

active

043472672

ABSTRACT:
Diffusion coating of internal surface of workpiece accessible only through very narrow passageway, is simply effected by coating that surface with uniform layer of particles of the metal to be diffused into it, and then holding the thus-prepared workpiece at diffusion-coating temperature in a diffusion-coating atmosphere.

REFERENCES:
patent: 3764371 (1973-10-01), Baldi
patent: 3801357 (1974-04-01), Baldi
patent: 3867184 (1975-02-01), Baldi et al.
patent: 3958046 (1976-05-01), Baldi
patent: 4041196 (1977-08-01), Baldi et al.
patent: 4132816 (1979-01-01), Benden et al.
patent: 4148275 (1979-04-01), Benden et al.
patent: 4154705 (1979-05-01), Baldi et al.
patent: 4197336 (1980-04-01), Savchenko et al.

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