Welding method of tungsten target material component
A welding method and target technology, applied in welding equipment, welding/welding/cutting items, non-electric welding equipment, etc., can solve the problems of prone to cracks, prone to accidents, large differences in physical properties of tungsten and copper, etc. The effect of increasing welding strength, preventing oxidation, and being less prone to chipping
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[0042] Since the melting point of tungsten is 3407°C and the melting point of copper is 1084°C, the melting points of the two materials are quite different. The diffusion between tungsten atoms and copper atoms often leads to the formation of brittle metal compounds, so a tungsten copper target formed by a copper back plate is used The welding strength of the material components is low.
[0043] To this end, the present invention provides a welding method for a tungsten target assembly. The tungsten target is welded by turning threads to form a groove in the copper backing plate, and then the two are installed together so that the tungsten target is located in the groove In the welding process, hot isostatic welding is performed. Since the tungsten target is confined in the groove, and the hot isostatic welding is uniformly applied in all directions, the deformation of the tungsten target is small during the welding process, and it is not easy to occur Fragmentation phenomenon, a...
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