Medical X-ray tube rotating anode high-heat radiation ceramic coat and production method thereof

Abstract

The invention relates to a medical X-ray tube rotating anode high-heat radiation ceramic coat and a production method thereof, which relates to a coat for improving the heat radiation performance on a medical X-ray tube target disc, and aims at solving the problem of the prior art that the heat radiation coefficient of the target disc in an X-ray tube is low, and adopts the technical scheme that: the medical X-ray tube rotating anode high-heat radiation ceramic coat comprises the following ingredients by weight percent: 25 to 35 percent of titanium dioxide (TiO2), 50 to 65 percent of aluminum oxide (Al2O3) and 5 to 15 percent of zirconia (ZrO2). TiO2, Al2O3 and ZrO2 are made into the high-heat radiation ceramic coat through procedures such as powder blending, washing, surface deairing, sand spraying, coating, vacuum heat treatment and the like. The ceramic coat improves the heat radiation coefficient of the target disc, and enhances the heat radiation performance of the X-ray tube, so the X-ray tube is free from having cracking phenomenon when working at a higher temperature, and the normal work of the X-ray tube can be guaranteed.

Description

technical field [0001] The invention relates to a coating for improving heat dissipation performance on a medical X-ray tube target disc, in particular to a medical X-ray tube rotating anode high-heat radiation ceramic coating and a preparation method thereof. Background technique [0002] The target disk is one of the important parts of the X-ray tube. Its working principle is: the cathode passes a low-voltage (usually 6-12V) current to heat the filament, thereby generating electrons with a certain energy. When the two poles of the ray tube are applied with high voltage (above 120 ~ 150KV), these electrons move toward the anode at high speed in the electric field, and bombard the surface of the anode to generate X-rays. Only a small part of the kinetic energy of the electrons bombarding the surface of the anode is converted into X-rays, and about 98% of the kinetic energy of the electrons is converted into thermal energy through a complex energy conversion process, which ca...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low thermal radiation coefficient of the target disc in the X-ray tube in the prior art, and provide a medical X-ray tube rotating anode high thermal radiation ceramic coating and its preparation method, the ceramic coating improves the target disc The thermal radiation coefficient enhances the heat dissipation performance of the ray tube, so that the ray tube will not crack when it works at a higher temperature, ensuring the normal operation of the ray tube