Method for manufacturing high-efficiency environment-friendly gas discharge lamp

Abstract

The invention relates to a method for manufacturing a high-efficiency environment-friendly gas discharge lamp. The method comprises the following steps of: 1, forming a ball bulb in a quartz tube; 2, filing an electrode assembly into the quartz tube, and extending one end of a thorium tungsten electrode tip to the ball bulb; 3, hooping the quartz tube and a molybdenum foil of the electrode assembly; 4, putting the quartz tube into an inert gas box with water oxygen content of not more than 1ppm, wherein the box is connected with a vacuum furnace; putting the quartz tube into the furnace, vacuumizing to 4*10<-4>Pa, heating an inner container to the temperature of between 1,000 and 1,080 DEG C, controlling an outer container to be 25 DEG C, keeping cooling, and discharging impurities; 5, taking the quartz tube out of the vacuum furnace after cooling, adding pills from the second end, and inserting a second electrode assembly into the ball bulb, wherein the second electrode assembly is coaxial with the first electrode tip; 6, connecting the second end and an extraction and filling table, vacuumizing the ball bulb to 4*10<-4>Pa, filling inert gas, and sealing the second end; 7, making the second end of the quartz tube upward, inserting the quartz tube into liquid nitrogen, liquefying the inert gas to the ball bulb, and inserting the quartz tube into a pressing sealer with a liquid nitrogen tank; and 8, making the quartz tube form a conductive connector, and pressing and sealing the quartz tube on an outer cover, wherein the two electrode assemblies are electrically connected with a conductive assembly respectively.

Description

technical field [0001] The invention belongs to the technical field of gas discharge lamp manufacturing, and in particular relates to a method for manufacturing a high-efficiency and environment-friendly gas discharge lamp. Background technique [0002] Most of the existing metal halide lamps use argon as the inert gas. The spectrum of argon is worse than that of xenon, so its color rendering is worse than that of xenon. For the convenience of starting, it generally contains Ke85, and this kind of gas is radioactive. Harmful to the human body. And because existing this kind of lamp, its production, manufacture all carry out in the air, and the impurity content of gas is big, causes instability, and service life is low. Because it must be under negative pressure, the volume of the bulb will be large, so there will be a cold end, long start-up time, poor color temperature consistency, and a large amount of mercury injection, which is also harmful to the environment. Content...

AI Technical Summary

Problems solved by technology

And because existing this kind of lamp, its production, manufacture all carry out in the air, the impurity content of gas is big, causes unstable, and service life is low

Because it must be under negative pressure, the volume of the bulb will be larger, so there will be a cold end, long start-up time, poor color temperature consistency, and a large amount of mercury injection, which is also harmful to the environment.

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