Method of manufacturing a component with a protective arrangemen

Details Method of manufacturing a component with a protective arrangemen Method of manufacturing a component with a protective arrangemen

1996-02-26

1998-03-10

Beck, Shrive

Coating processes

Removable protective coating applied

Metal base

427203, 427252, 427405, 4274191, 427435, B05D 138, C23C 1606

Patent

active

057259054

ABSTRACT:
A method for selectively protecting a component made of an iron-base alloy, cobalt-base alloy or nickel-base alloy with a protective arrangement which protects select areas of the component from aluminizing or chromizing during gas diffusion coating, wherein a first layer acts as an interlayer and a second layer acts as a getter layer for reaction gases. The method comprises the steps of depositing a first layer of slip cast material comprising oxide ceramic particles carried in a low-carbon, halide free, liquid vehicle; depositing a second layer comprising metal or a metallic slip, which comprises at least 50% by weight of the base metal of the component and all major alloy constituents of the component; aluminizing or chromizing by gas diffusion coating; and removing the protective arrangement from the component.

REFERENCES:
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patent: 5015502 (1991-05-01), Strangman et al.
patent: 5139824 (1992-08-01), Liburdi et al.
patent: 5482578 (1996-01-01), Rose et al.
Superalloys II, Sims et al., John Wiley and Sons, Inc., 1987, p. 580.

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