Welding method and welding equipment for X-ray tube beryllium window

Abstract

The invention relates to a welding method and welding equipment for an X-ray tube beryllium window. The welding method carries out welding by adopting the welding equipment for the X-ray tube beryllium window. The welding equipment for the X-ray tube beryllium window comprises a frame and a beryllium window compaction structure for fixing a beryllium window processed part in the frame. The beryllium window processed part is composed of a beryllium window bracket, a beryllium sheet and solder. The frame is different from the beryllium window compaction structure and the beryllium window bracketin coefficient of thermal expansion, and the frame, the beryllium window compaction structure, the beryllium window bracket and the beryllium sheet can tolerate temperature and pressure in thermal treatment. The welding method comprises the following steps of S1, cleaning up an X-ray tube beryllium window part, the frame and the beryllium window compaction structure; S2, fixing the beryllium window processed part in the frame through the beryllium window compaction structure; S3, carrying out thermal treatment on the frame where the beryllium window processed part and the beryllium window compaction structure are fixed; and S4, carrying out leak detection on the thermally treated X-ray tube beryllium window. The invention further comprises the X-ray tube beryllium window welding equipment. The welding equipment is concise in structure, convenient to use, low in cost and equipment-saving, and improves the processing quantity.

Description

technical field [0001] The application relates to a welding method and welding equipment for a beryllium window of an X-ray tube, in particular to a welding method and welding equipment (tooling) for welding a beryllium window of an X-ray tube by using thermal expansion relationship. Background technique [0002] X-ray tubes are the core components of element detectors, medical diagnostic equipment, and material thickness measurement equipment. X-ray tube ray windows are metal titanium windows and aluminum windows, because metal beryllium has a much higher transmittance to X-rays than metal titanium and aluminum, and the X-ray intensity and dose required to obtain the same clear image will be much lower, so , whether it is for personal safety and environmental protection, it is the best choice to use metal beryllium as the radiation window of the X-ray vacuum device. [0003] Beryllium generally adopts brazing and diffusion welding methods. During brazing, the wettability ...

AI Technical Summary

Problems solved by technology

During brazing, the wettability and fluidity of the surface of general brazing solder beryllium are poor, and beryllium is easily oxidized, and the oxide film is not easy to break during brazing, which increases the difficulty of brazing

In addition, the brazing of the beryllium window should not be carried out at an excessively high temperature, because beryllium is easy to diffuse at high temperature, forming voids at the weld interface

[0004] The traditional vacuum diffusion welding of beryllium windows needs to be carried out on special vacuum diffusion welding equipment. Since the vacuum diffusion welding equipment is connected by three systems of pressure, heating and vacuum, the equipment quotation or outsourcing processing costs are very expensive, and Only one or several groups of workpieces can be welded at a time, so the production efficiency is low and the cost is relatively high

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