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US 8,014,495 B2Granted
Creep-resistant rotating anode plate with a light-weight design for rotating anode x-ray tubes
AssigneeSiemens Aktiengesellschaft
InventorEberhard Lenz
Life of this patent
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Abstract
A rotating anode plate for rotating anode x-ray tubes, has a curved disc to be attached positively on a rotation center. The curved disc is formed of a material with high thermal shock resistance that is creep-resistant and simultaneously highly heat-conductive. Particularly suitable materials are ceramics made of silicon carbide (SiC) or alloys made of molybdenum-titanium-zirconium (TZM).
Claims12
A rotating anode for a rotating anode x-ray tube, said rotating anode comprising:
- a curved disc rigidly connected on a rotation center around which said curved disc is caused to rotate;
- said curved disc being comprised of a material having a high thermal shock resistance that is also creep-resistant and also highly heat-conductive;
- an anode ring applied with rigid fit elements on said curved disc;
- said anode ring comprising radially oriented chambers;
- and
- a plurality of plates comprised of pyrolytic graphite respectively inserted in said chambers and respectively retained in said chambers by said rigid fit elements.
3 more elements
A method to fabricate a rotating anode for a rotating anode x-ray tube comprising:
- forming a curved disc of a material having a high thermal shock resistance that is also creep-resistant and also highly heat-conductive;
- rigidly attaching said curved disc to a rotational mount at a rotation center of said curved disc;
- soldering an anode ring onto said curved disc together with a plurality of rigid fit elements, said anode ring comprising radially oriented chambers;
- and
- attaching pyrolytic graphic plates to said ring in said chambers with a heated connection, to produce a composite material.
2 more elements
Dependencies are inferred from the claim text.