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Process for the manufacture of filaments for self-rectifying mercury lamps

A manufacturing method and self-rectification technology, applied in the manufacture of cathode heaters, etc., can solve the problems of easy solidification of mercury and short life of the filament of mercury lamps, and achieve the effect of not easy to break the wire, strong wire feet, and increase the service life

Active Publication Date: 2016-06-01
上海亚尔精密零件制造有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] Mercury lamps are generally used in various fields such as photolithography machines, large-scale integrated circuits, circuit boards, etc., and mercury lamps emit ultraviolet rays when they are working, but the existing mercury lamps cannot control the radiation of ultraviolet rays to a certain level. range, and mercury is easy to solidify at the cold end of the discharge tube, and the filament life of the mercury lamp is relatively short, these are problems that need to be solved

Method used

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Embodiment

[0022] A method of manufacturing a filament for a self-rectifying mercury lamp, comprising the steps of:

[0023] (1) Winding: On the wire winding machine, the tungsten wire is spirally wound on a molybdenum core wire with a pitch of 40-250 μm to form the main body of the filament. The two ends of the main body are wound back and forth to form a wire foot. The core wire released from the wire feeding plate passes through the core wire speed control wheel and the guide wheel, then passes through the mandrel, the tungsten wire loading plate and the carbide nozzle, and then passes through another guide wheel and The core wire speed control wheel is finally wound on the receiving reel. The speed at which the core wire advances is changed by changing the number of gear teeth, and the thread pitch can be changed by matching a set of speed change gears. In addition, by matching with another set of gap gears, periodic gap movements of different lengths can be produced. This is how t...

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Abstract

The invention relates to a method for manufacturing a lamp filament of a self-rectifying mercury lamp. The method includes the steps of winding, first sizing, cutting, second sizing and melting a core filament. The lamp filament of the self-rectifying mercury lamp is eventually manufactured and obtained through the steps. Compared with the prior art, filament feet at the two ends of the lamp filament manufactured by adopting the method are firmer, so that the filament is not prone to being broken, and the service life of the lamp filament is greatly prolonged.

Description

technical field [0001] The invention relates to a method for manufacturing a filament, in particular to a method for manufacturing a filament for a self-rectifying mercury lamp. Background technique [0002] Mercury lamps are generally used in various fields such as photolithography machines, large-scale integrated circuits, circuit boards, etc., and mercury lamps emit ultraviolet rays when they are working, but the existing mercury lamps cannot control the radiation of ultraviolet rays to a certain level. Within the range, and the mercury is easy to solidify at the cold end of the discharge tube, and the filament life of the mercury lamp is relatively short, these are problems that need to be solved. Contents of the invention [0003] The object of the present invention is to provide a method for manufacturing a filament for a self-rectifying mercury lamp with a greatly improved service life in order to overcome the above-mentioned defects in the prior art. [0004] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J9/08
Inventor 刘宏林芳
Owner 上海亚尔精密零件制造有限公司
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