Ceramic-coated metal guide pin

Details Ceramic-coated metal guide pin Ceramic-coated metal guide pin

1999-03-12

2000-07-11

King, Roy V.

Coating processes

Coating by vapor, gas, or smoke

Mixture of vapors or gases utilized

42725534, 42725536, 4272557, 427327, 4274192, C23C 1606

Patent

active

060869534

ABSTRACT:
A method for manufacturing a guide pin is disclosed, which comprises machining a metal substrate core; optionally depositing an intermediate coating onto the substrate core; and depositing an insulative ceramic coating onto the intermediate coating by a chemical vapor deposition process under pressure conditions of up to about 500 torr, wherein the Rockwell C hardness of the metal core is greater than or equal to about 45, and the surface roughness values of the as-deposited coating are Ra less than or equal to about 35 microinches and Rmax less than or equal to about 250 microinches.

REFERENCES:
patent: 4020316 (1977-04-01), Schaft et al.
patent: 4789768 (1988-12-01), Tobita et al.
patent: 5259675 (1993-11-01), Ichikawa et al.
patent: 5516588 (1996-05-01), van den Berg et al.
patent: 5958569 (1999-09-01), Leverenz et al.

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