Ceramic metallic halogen lamp electrode
A ceramic metal halide lamp and electrode technology, applied in the field of electrodes, can solve the problems of unreasonable structure, damage, low work efficiency, etc., and achieve the effects of uniform spring pitch, delayed light decay, and improved life.
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[0017] A ceramic metal halide lamp electrode, a main rod 1 made of thorium-tungsten alloy material, one end of the main rod is wound with a yttrium-molybdenum alloy wire helix 2, and the other end of the main rod is wound with a high-purity tungsten wire helix 3; The end of the main rod at one end of the helix is connected with the niobium rod 4 of the outer lead.
[0018] The gap between adjacent spirals in the yttrium-molybdenum alloy wire spiral body and the high-purity tungsten wire spiral body is less than 0.005mm. The sum of the lengths of the yttrium-molybdenum alloy wire helix and the high-purity tungsten wire helix accounts for more than 70% of the total length of the main rod. Mosaic welding between the niobium rod and the main rod of the outer lead: first process the end surface of the niobium rod with a deep arc-shaped indentation 5 of 0.2mm, and then the main rod and the spring contact the inner hole of the lead end with a large area and then energize and weld. ...
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