Manufacturing method of W/Mo/graphite composite anode target material for X-ray tube of CT machine

A composite anode and manufacturing method technology, applied in manufacturing tools, metal processing equipment, welding equipment, etc., can solve the problems of high cost, difficult to meet the requirements of density, complex process, etc., and achieve short holding time and good thermal shock resistance. , the effect of simple process

Active Publication Date: 2018-11-30
安徽尚欣晶工新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patent 106531599A "A Tungsten-Rhenium-Molybdenum Alloy Rotating Anode Target for X-ray Tubes and Its Preparation Method" uses tungsten-rhenium pre-alloyed powder and molybdenum alloy powder as raw materials, through molding, high-temperature sintering, hot isostatic pressing, straightening and shaping , Mechanical processing process to prepare anode target material, but its process is complicated, the cost is high, and the density is difficult to meet the requirements

Method used

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  • Manufacturing method of W/Mo/graphite composite anode target material for X-ray tube of CT machine
  • Manufacturing method of W/Mo/graphite composite anode target material for X-ray tube of CT machine
  • Manufacturing method of W/Mo/graphite composite anode target material for X-ray tube of CT machine

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Effect test

Embodiment 1

[0036] The present embodiment manufactures CT machine X-ray tube W / Mo / graphite composite anode target material according to the following steps:

[0037] (1), press figure 1 and figure 2 As shown, according to the required shape and size of the anode target, the tungsten plate and the molybdenum cylinder are machined, and the outer circumference dimensions of the processed tungsten plate and molybdenum cylinder are kept on the basis of the outer circumference size required by the anode target. have margin;

[0038] After grinding and polishing the welding surface of the machined tungsten plate and the molybdenum cylinder, it is cleaned ultrasonically with acetone solution;

[0039] (2) Put the tungsten plate and the molybdenum cylinder processed in step (1) into the SPS furnace chamber with the tungsten plate on the bottom and the molybdenum cylinder on the top. When the vacuum is pumped to 5Pa, the diffusion connection is started to obtain W / Mo connector;

[0040] The pro...

Embodiment 2

[0058] The present embodiment manufactures CT machine X-ray tube W / Mo / graphite composite anode target material according to the following steps:

[0059] (1), press figure 1 and figure 2 As shown, according to the required shape and size of the anode target, the tungsten plate and the molybdenum cylinder are machined, and the outer circumference dimensions of the processed tungsten plate and molybdenum cylinder are kept on the basis of the outer circumference size required by the anode target. have margin;

[0060] After grinding and polishing the welding surface of the machined tungsten plate and the molybdenum cylinder, it is cleaned ultrasonically with acetone solution;

[0061] (2) Put the tungsten plate and the molybdenum cylinder processed in step (1) into the SPS furnace chamber with the tungsten plate on the bottom and the molybdenum cylinder on the top. When the vacuum is pumped to 5Pa, the diffusion connection is started to obtain W / Mo connector;

[0062] The p...

Embodiment 3

[0080] The present embodiment manufactures CT machine X-ray tube W / Mo / graphite composite anode target material according to the following steps:

[0081] (1), press figure 1 and figure 2 As shown, according to the required shape and size of the anode target, the tungsten plate and the molybdenum cylinder are machined, and the outer circumference dimensions of the processed tungsten plate and molybdenum cylinder are kept on the basis of the outer circumference size required by the anode target. have margin;

[0082] After grinding and polishing the welding surface of the machined tungsten plate and the molybdenum cylinder, it is cleaned ultrasonically with acetone solution;

[0083] (2) Put the tungsten plate and the molybdenum cylinder processed in step (1) into the SPS furnace cavity for diffusion connection with the tungsten plate on the bottom and molybdenum on top. When the vacuum is pumped to 5Pa, the diffusion connection is started , get the W / Mo connector;

[0084]...

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Abstract

The invention discloses a manufacturing method of a W/Mo/graphite composite anode target material for an X-ray tube of a CT machine. According to the manufacturing method, a tungsten plate, a molybdenum cylinder and a graphite block are used as raw material. The manufacturing method comprises the step 1 of machining the tungsten plate and the molybdenum cylinder according to the required shape andsize of the anode target material, ensuring that the size of the outer circumferences of the machined tungsten plate and molybdenum cylinder have allowance on the basis of the required size of the outer circumference of the anode target material; the step 2 of performing SPS diffusion connection on the machined tungsten plate and molybdenum cylinder to obtain a W/Mo connecting piece; and the step3 of machining the W/Mo connecting piece and the graphite block according to the required shape and size of the anode target material, and performing SPS diffusion connection on the machined W/Mo connecting piece and the graphite block to obtain the W/Mo/graphite composite anode target material. According to the manufacturing method, the W/Mo/graphite composite anode target material has the advantages of being high in density, high in bonding strength of the W/Mo alloy layer and the Mo/graphite alloy layer, good in heat dissipation, good in resistance to heat shock, long in service life and the like.

Description

technical field [0001] The invention relates to a method for manufacturing an anode target for an X-ray tube of a CT machine, in particular to a method for manufacturing a W / Mo / graphite composite anode target with high density and good mechanical properties that meets the requirements for use of the X-ray tube of a CT machine. Background technique [0002] The scanning part of CT equipment is mainly composed of X-ray tubes, detectors and scanning frames. The performance of CT machines depends largely on the quality of X-ray tubes, and the anode target is a key component of X-ray tubes, which directly affects The emission performance and service life of the X-ray tube are improved. When the X-ray tube is working, the anode target is bombarded by high-energy electron beams to emit X-rays. However, the energy conversion efficiency in the working process of the X-ray tube is very low, only about 2%, and more than 98% of the energy is converted into heat energy, and the heat is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23K20/02
CPCB23K20/026B23P15/00
Inventor 张久兴韩翠柳王正红黄昊沈学峰杨新宇潘亚飞
Owner 安徽尚欣晶工新材料科技有限公司
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