Production process for gas discharge tube

Abstract

The invention discloses a production process for a gas discharge tube. The production process comprises step one, connecting an exhaust pipe with the tube; step two, fusing solid spherical transitional glass at one and/or two ends of the tube in a high-temperature environment, wherein the expansion coefficient of the transitional glass is between the expansion coefficient of an electrode and the expansion coefficient of the tube; step three, blowing the solid spherical transitional glass into a hollow tube with the inner diameter larger than the diameter of the electrode in a high-temperature environment; step four, inserting the electrode into the hollow tube and sealing the middle of the electrode in the hollow tube. According to the production process, the solid spherical transitional glass is fused at two ends of the tube firstly, then, the spherical glass is blown into a tubular shape through the exhaust pipe, the electrode is inserted and sealed into the tube, the whole process is simple and rapid, the middle of the electrode is completely covered with the transitional glass with the expansion coefficient matched with the electrode, and air leakage can be avoided after expansion with heat.

Description

technical field [0001] The invention relates to a production process of a gas discharge lamp tube. Background technique [0002] During the production process of the gas discharge lamp tube, due to the difference in thermal expansion coefficient between the electrode material and the glass quartz material, gas leakage is prone to occur at the joint after heating, making the lamp tube unusable. In order to improve the above problems, in the production process of the lamp tube, a layer of transition glass coating or gradient material layer with an expansion coefficient between the quartz material and the motor is first coated on the electrode surface, and then it is connected with the glass lamp tube, thereby avoid the above-mentioned problems. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the invention provides a gas discharge lamp production process with low cost and high safety factor. [0004] The technical solution adopted...

AI Technical Summary

Problems solved by technology

[0002] In the production process of gas discharge lamp tubes, due to the different thermal expansion coefficients of electrode materials and glass quartz materials, gas leakage is prone to occur at the joints after heating, making the lamp tubes unusable

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