WELDING STRUCTURE OF VACUUM VALVE AND METHOD AND APPARATUS THEREOF
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United States of America Patent
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app pub date -
Apr 30, 2015
filing date -
Apr 30, 2015
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Abstract
A welding structure of vacuum valve includes a first plate, a second plate, and a cover plate. The second plate has two lateral edges contacting and fixed with two laterals edges of the first plate by internal welding, such that an internal weld bead is formed at the inner edges of the second plate and the first plate contacting each other, respectively. The cover plate is welded to one end of the first plate and one end of the second plate. With the internal welding, the valve body of a vacuum valve is fully welded, so as to prevent the structure of the valve body from being damaged, achieving an actual vacuum environment.
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