Method for manufacturing lamp filament of self-rectifying mercury lamp
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
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[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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