Method and device for depositing a lubricant layer to manufactur

Coating apparatus – Gas or vapor deposition – With treating means

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118715, 118726, C23C 1424

Patent

active

049209191

ABSTRACT:
In depositing a lubricant layer on a protection layer of a magnetic base, a lubricant is vaporized in a hollow space which is kept at a predetermined temperature under ambient pressure. The predetermined temperature is between 100.degree. C. and 300.degree. C. in consideration of the material of the protection layer and the vapor pressure of the lubricant. Preferably, the vaporization of the lubricant is carried out in a thermostatic chamber which defines a hollow space divided by a mesh partition into upper and lower chambers. The magnetic base and the lubricant are placed in the upper chamber with the lubricant held in a boat while a heater is disposed in the lower chamber.

REFERENCES:
patent: 3466156 (1969-09-01), Peters
patent: 3619283 (1971-11-01), Carpenter
patent: 3634040 (1972-01-01), Johnson
patent: 3719525 (1973-03-01), Patel
patent: 4069360 (1978-01-01), Yanagisawa
patent: 4171388 (1979-10-01), Allen
patent: 4390601 (1983-06-01), Ono

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