Rubbing contact seal member with low wear coating and metal-cont

Details Rubbing contact seal member with low wear coating and metal-cont Rubbing contact seal member with low wear coating and metal-cont

1976-08-10

1978-06-06

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

165 9, F28D 1900, F16J 1534

Patent

active

040932435

ABSTRACT:
A member including a metal substrate, a low wear coating formed by flame spraying a mixture of a wear resistant metal oxide such as nickel oxide and a solid lubricating material such as calcium fluoride to serve as a high temperature rubbing contact seal layer and at least one undercoat layer formed by flame spraying between the substrate and the surface layer, characterized by the presence of a metal in at least one of the undercoat layers mixed with a commonly employed fundamental material, which is the wear resistant metal oxide optionally with the addition of the solid lubricating material, in order to lessen the difference in thermal expansion coefficient between the individual undercoat layer and the surface layer.

REFERENCES:
patent: 3669016 (1962-12-01), Dega
patent: 3903959 (1975-09-01), Fushimi et al.

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