公开(公告)号：US5795207A

公开(公告)日：1998-08-18

申请号：US551091

申请日：1995-10-31

Applicant: James A. Blake ,  Jamie E. Lazzaro ,  James R. Dobbs

Inventor： James A. Blake ,  Jamie E. Lazzaro ,  James R. Dobbs

IPC: H01J35/16 ,  H01J9/26 ,  H01J9/34

CPC classification number: H01J35/16 ,  H01J2235/10

Abstract: A method is used for interfacing dissimilar materials in an X-ray tube. The X-ray tube includes a rotor assembly to distribute heat generated in the X-ray tube. The X-ray tube is sealed within a glass material which has a first expansion coefficient. An interface is provided between the rotor assembly and the glass material to absorb temperature coefficient stresses. Preferably, the glass material is Borosilicate and the interface comprises a metal material and a ceramic material. The ceramic material has a second expansion coefficient that closely matches the first expansion coefficient. The metal material is preferably Kovar, and the ceramic material is preferably Mullite. Temperature coefficient stresses are then absorbed within the ceramic and metal structure.

Abstract translation: 一种用于在X射线管中接合不同材料的方法。 X射线管包括用于分配在X射线管中产生的热的转子组件。 X射线管被密封在具有第一膨胀系数的玻璃材料中。 在转子组件和玻璃材料之间提供界面以吸收温度系数应力。 优选地，玻璃材料是硼硅酸盐，并且界面包括金属材料和陶瓷材料。 陶瓷材料具有与第一膨胀系数紧密匹配的第二膨胀系数。 金属材料优选为Kovar，并且陶瓷材料优选为莫来石（Mullite）。 然后在陶瓷和金属结构内吸收温度系数应力。