Rotary X-ray tube and method of manufacturing connecting rod consisting of pulverized sintered material

A method of manufacturing a connecting rod having a tubular member for connecting an anode target of a rotor of a rotary anode x-ray tube to each other, comprising:

• the first step of preparing a sintered material;
• the second step of pulverizing said sintered material;
• the third step of forming said pulverized sintered material into the tubular member;
• and
• the fourth step of sintering said tubular member so as to obtain the connecting rod.

A rotary anode x-ray tube comprising:

• a vacuum vessel;
• a cathode electrode, arranged in said vacuum vessel, for emitting electrons;
• an anode target, arranged in said vacuum vessel, for generating x-rays when electrons emitted from said cathode electrode collide with said anode target;
• a connecting rod, arranged in said vacuum vessel, for supporting said anode target, said connecting rod being manufactured by subjecting a tubular member consisting of a sintered material to processes including plasticization to pulverize crystal grains of the sintered material, such that the connecting rod is constituted by a pulverized sintered material;
• a rotor arranged in said vacuum vessel and mounted on said connected rod;
• and
• bearings, arranged in said vacuum vessel, for rotatably supporting said anode target.

A rotary anode x-ray tube comprising:

• a vacuum vessel;
• a cathode electrode, arranged in said vacuum vessel, for emitting electrons;
• an anode target, arranged in said vacuum vessel, for generating x-rays when electrons emitted from said cathode electrode collide with said anode target;
• a connecting rod, arranged in said vacuum vessel, for supporting said anode target, said connecting rod being manufactured by preparing a sintered material, pulverizing the sintered material, forming the pulverized sintered material into a tubular member and sintering the tubular member to obtain a connecting rod which is constituted by a pulverized sintered material;
• a rotor arranged in said vacuum vessel and mounted on said connecting rod;
• and
• bearings, arranged in said vacuum vessel, for rotatably supporting said anode target.

A rotary anode x-ray tube comprising:

• a vacuum vessel;
• a cathode electrode, arranged in said vacuum vessel, for emitting electrons;
• an anode target, arranged in said vacuum vessel, for generating x-rays when electrons emitted from said cathode electrode collide with said anode target;
• a connecting rod, arranged in said vacuum vessel, for supporting said anode target, said connecting rod being manufactured by subjecting a tubular member consisting of a sintered material to processes including plasticization to pulverize crystal grains of the sintered material, such that the connecting rod is constituted by a pulverized sintered material;
• a rotor arranged in said vacuum vessel and mounted on said connecting rod,
• bearings, arranged in said vacuum vessel, for rotatably supporting said anode target;
• and
• a heat conducting plate arranged between said anode target and said rotor and essentially consisting of a material having excellent heat conduction characteristics.

A rotary anode x-ray tube comprising:

• a vacuum vessel;
• a cathode electrode, arranged in said vacuum vessel, for emitting electrons;
• an anode target, arranged in said vacuum vessel, for generating x-rays when electrons emitted from said cathode electrode collide with said anode target;
• a connecting rod, arranged in said vacuum vessel, for supporting said anode target, said connecting rod being manufactured by preparing a sintered material, pulverizing the sintered material, forming the pulverized sintered material into a tubular member, and sintering the tubular member to obtain a connecting rod which is constituted by a pulverized sintered material;
• a rotor arranged in said vacuum vessel and mounted on said connecting rod,
• bearings, arranged in said vacuum vessel, for rotatably supporting said anode target;
• and
• a heat conducting plate arranged between said anode target and said rotor and essentially consisting of a material having excellent heat conduction characteristics.