X-ray tube having a rotary anode with rhenium-containing bearing

Details X-ray tube having a rotary anode with rhenium-containing bearing X-ray tube having a rotary anode with rhenium-containing bearing

1987-06-02

1989-08-08

Church, Craig E.

X-ray or gamma ray systems or devices

Source

Electron tube

378132, H01J 3510

Patent

active

048560391

ABSTRACT:
The invention relates to an X-ray tube having a rotary anode which is rotatably supported in a vacuum-tight housing by at least one metal-lubricated sliding bearing of which at least the cooperating bearing surfaces consist of a W-alloy and in which the lubricant is Ga or a Ga-alloy.
In order to extend the life of the X-ray tube, in particular at operating temperatures of the bearing above 400.degree. C., a mechanically readily machinable W-alloy is used which comprises from 2 to 27% by weight of Re.

REFERENCES:
patent: 3694685 (1972-09-01), Houston
patent: 4210371 (1980-07-01), Gerkema et al.
patent: 4276493 (1981-06-01), Srinivasa et al.
patent: 4413356 (1983-11-01), Harrl
patent: 4468800 (1984-08-01), Friedal et al.
patent: 4481655 (1984-11-01), Annis et al.
patent: 4562587 (1985-12-01), Gerkema et al.
patent: 4641332 (1987-02-01), Gerkema

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