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Device for high temperature treating high voltage mercury lamp electrode

A high-temperature treatment and ultra-high pressure technology, which is applied in the manufacture of electrode systems, manufacture of discharge tubes/lamps, circuits, etc., can solve problems such as effective heat transfer to electrodes, unsatisfactory heat treatment effects, and high energy consumption. High electrothermal conversion efficiency, low energy leakage loss, and long working hours

Inactive Publication Date: 2006-08-23
王国华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The heat transfer method used in this heating method cannot effectively transfer heat to the internal electrodes, the energy consumption is large, the power consumption is up to 500kw, and the heating time is long. It takes 3-4 hours to heat once, and the maximum heating temperature can only reach 2000 -2400℃, the heat treatment effect is not ideal
And because expensive multi-layer tungsten sheets need to be rolled into tungsten cylinders, expensive matching high-current heating equipment is required, making the cost high

Method used

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  • Device for high temperature treating high voltage mercury lamp electrode

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Embodiment

[0013] figure 1 As shown, a specific embodiment of the present invention is: a device for high-temperature treatment of electrodes of ultra-high pressure mercury lamps, which is composed of: one end of a horizontal cylindrical quartz glass tube 1 is opened, the opening is connected with a vacuum unit, and the quartz glass A heating coil 2 of a high-frequency furnace is wound on the tube 1 , a support frame 3 made of tungsten bars is placed on the lower part of the inner cavity of the quartz glass tube 1 , and a tungsten cylinder 4 braided with tungsten wire is placed on the support frame 3 . The support frame 3 is a quadruped support frame 3 .

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Abstract

Present invention discloses a device for high temperature processing ultra-pressure mercury lamp. It is composed of transversal cylindrical form quartz glass tube with one end opening connected with vacuum assembly, quartz glass tube wound with heating coil of high frequency furnace, glass tube intracavity bottom set with tungsten rod made bracing frame, tungsten filament braided tungsten tube set bracing frame. Said device effectively heats electrode by high frequency heating with high temperature, short time, high brightness of processed electrode, and fine performance.

Description

[0001] Field [0002] The invention relates to a device for high-temperature treatment of electrodes of ultra-high pressure mercury lamps. Background technique [0003] The ultra-high pressure mercury lamp is an ideal point light source with rich light color and high color temperature. It is mainly used in projectors with high brightness output of small liquid crystal panels and other projection technology fields. The ultra-high pressure mercury lamp utilizes the high-pressure mercury vapor discharge generated in the arc tube filled with mercury to obtain a visible light source. The electrodes that generate the discharge are made of metal tungsten. In the production process of tungsten electrodes, high temperature treatment is required to remove low melting point impurities in tungsten electrodes. Otherwise, when working, the ambient working temperature of the electrode is high, and the low-melting-point impurities in the tungsten electrode will seriously affect the discharg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J9/02
Inventor 王国华
Owner 王国华