Procedure for the application of a PTFE-based self-lubricating c

Details Procedure for the application of a PTFE-based self-lubricating c Procedure for the application of a PTFE-based self-lubricating c

1989-07-03

1991-04-30

Silverman, Stanley

Stock material or miscellaneous articles

Composite

Of polyisocyanurate

427327, 148253, 148254, 148256, 148257, B32B 2700, B05D 300

Patent

active

050117386

ABSTRACT:
A procedure for the application of PTFE-based, self-lubricating coating on a steel bearing element whose chrome and nickel contents are less than 5%, is disclosed. The procedure is characterized by a working process whereby the element undergoes a preparatory treatment during which crystal nuclei form, followed by phosphatization treatment which forms a microcrystalline layer composed of an iron and manganese compound, then by the application of PTFE on the surface and between the crystals.

REFERENCES:
patent: 4290337 (1981-09-01), Kunata et al.
patent: 4564397 (1986-01-01), Opsahl
patent: 4586963 (1986-05-01), Smith et al.
patent: 4717431 (1988-01-01), Knaster
patent: 4748055 (1988-05-01), Landers et al.
patent: 4880476 (1989-11-01), Matsuda et al.
patent: 4883722 (1989-11-01), Coppens et al.

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