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Composite double filement master-slave style three filament and three spiral filement and manufacture thereof

A manufacturing method and double-auxiliary helix technology, applied in the manufacture of discharge tubes/lamps, cold cathodes, electrode systems, etc., can solve the problems of low service life of fluorescent lamps, improve electrothermal conversion efficiency, firm adhesion, shorten pre-heating, etc. The effect of heat time

Inactive Publication Date: 2005-07-27
廖炫泰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the resulting fluorescent lamps generally have a low service life

Method used

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  • Composite double filement master-slave style three filament and three spiral filement and manufacture thereof
  • Composite double filement master-slave style three filament and three spiral filement and manufacture thereof
  • Composite double filement master-slave style three filament and three spiral filement and manufacture thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] like Figure 4~7 As shown, the composite double auxiliary wire main auxiliary three wire triple helix filament 11 is a spiral tungsten wire spirally surrounded by a helical tungsten wire. The double auxiliary helical tungsten wire 5 formed by wires 1 and 2 in an elliptical helical shape is then wound around another tungsten wire called the main tungsten wire 6 which is formed by a helical helical tungsten wire 8 and forms a secondary helix. Coil-shaped composite primary and secondary helical tungsten wires 9 .

[0030] The diameters of the tungsten wires 1 and 2, which are called double auxiliary wires, are smaller than the diameter of another tungsten wire 6, which is called the main and auxiliary wires, which is wound in a helical shape.

[0031] During manufacturing, the following steps can be used:

[0032] 1) Two thinner tungsten wires 1 and 2 with the same diameter (called double auxiliary wires) are spirally wound around two thin molybdenum core wires 3 and 4 w...

Embodiment 2

[0039] Similar to Example 1, the difference is that two tungsten wires 1 and 2 with different diameters and two thin molybdenum core wires 3 and 4 with different diameters are used during manufacturing. In addition, the temperature for high-temperature setting is 1450-1550° C., and the time is 20-25 minutes; the concentration of nitric acid and sulfuric acid is 60% and 97% respectively; the ratio of mixed acid is nitric acid: sulfuric acid: pure water = 1: 1.1: 1.4.

Embodiment 3

[0041] Similar to Example 1, the difference is that two tungsten wires 1 and 2 with different diameters and two thin molybdenum core wires 3 and 4 with the same diameter are used during manufacturing. In addition, the temperature for high-temperature setting is 1300-1450° C., and the time is 25-30 minutes; the concentration of nitric acid and sulfuric acid is 67% and 96% respectively; the ratio of mixed acid is nitric acid: sulfuric acid: pure water = 1: 1.3: 1.2.

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Abstract

The invention can extend the working life of fluorescent lamp. The twist tungsten filaments consists of double assistant twist tungsten filaments that is formed by two assistant tungsten filaments, and a main tungsten filaments rounding the above double assistant twist tungsten filaments.

Description

technical field [0001] The invention relates to a filament, in particular to a compound type double auxiliary filament main auxiliary type three filament triple helix filament which is mainly used for the cathode of a fluorescent lamp. Background technique [0002] As we all know, the life of fluorescent lamp cathode mainly depends on the ability of its filament to withstand ion bombardment and the ability to rapidly excite electrons. When the filament cannot heat up or the temperature rises slowly so that the electrons emitted by the cathode are not enough to ignite the fluorescent lamp or the filament is bombarded by ions and breaks, the life of the fluorescent lamp ends. Therefore, how to enhance the ability of the filament to withstand ion bombardment, improve the heating performance of the filament, and promote the cathode to quickly excite electrons to ignite the lamp tube has become a key factor to prolong the life of the filament and fluorescent lamp. [0003] The e...

Claims

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Application Information

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IPC IPC(8): H01J9/02H01J61/067H01K1/14H01K3/02
Inventor 廖炫泰
Owner 廖炫泰
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