Abradable seal and its method of production

Details Abradable seal and its method of production Abradable seal and its method of production

1982-06-14

1983-12-27

Beck, Shrive P.

Coating processes

Roller applicator utilized

75252, 75254, 428406, 428325, 428639, 277 962, B05D 110

Patent

active

044230974

ABSTRACT:
A seal intended to wear from abrasion for use in contact with a rotor zone of a rotating machine, of the type made up of a dispersion of hollow microspheres in a binder providing cohesion of the microspheres among themselves and their attachment to a metallic support. In order to make it possible to produce the seal by torch spraying from a powdered mixture onto the support, the hollow microspheres are made of an inorganic refractory material and the binder material is a metallic material more fusible than the material of the microspheres.

REFERENCES:
patent: 3084064 (1963-04-01), Cowden
patent: 3547455 (1970-12-01), Daunt
patent: 3575427 (1971-04-01), Lapac
patent: 4177308 (1979-12-01), Beeler
patent: 4248940 (1981-02-01), Goward
patent: 4330575 (1982-05-01), Litchfield

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