Valve having ceramic valve bodies with low friction coatings

Details Valve having ceramic valve bodies with low friction coatings Valve having ceramic valve bodies with low friction coatings

1988-11-14

1991-02-12

Chambers, A. Michael

Valves and valve actuation

Valve

Materials

13762541, F16L 500

Patent

active

049918222

ABSTRACT:
In a valve, especially for a shut-off or regulating means, having of a plate-like valve body of a metal or nonmetallic material having at least one layer of hard substance applied to the valve body, the coating consists of an alloy of silicon and/or carbon, preferably of Si.sub.x C.sub.1-x (wherein -x has a value of 0 to 1), and is applied to the valve body by the method of plasma CVD or plasma polymerization, monomers (gases or gas mixtures which contain the atoms which are to form the hard coating) are used, which contain carbon or carbon and silicon.

REFERENCES:
patent: 3124054 (1964-03-01), Dore
patent: 3533436 (1970-10-01), Parkison
patent: 3603965 (1972-08-01), McClure et al.
patent: 3810602 (1974-05-01), Parkinson
patent: 3834416 (1974-09-01), Parkison
patent: 3857682 (1974-12-01), White
patent: 4685487 (1987-08-01), Derdack et al.
patent: 4856758 (1989-08-01), Knapp
patent: 4862907 (1989-09-01), Ledtje et al.

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