Technique for manufacturing glass tube case of electrodeless lamp

A manufacturing process and technology of glass tubes, applied in the field of manufacturing process of glass tube shells of electrodeless lamps, can solve the problems of light efficiency, light decay, insufficient service life, and difficulty in meeting the requirements of use, so as to improve the efficiency of baking powder and ensure adhesion Uniformity, the effect of ensuring the thickness of the coating

Active Publication Date: 2015-02-25
GUANGDONG ELX LIGHTING TECH
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AI Technical Summary

Problems solved by technology

[0003] At present, the manufacturing process of the glass shell of the electrodeless lamp is generally to clean the glass tube first, and then to powder coat, bake the powder, rub the powder, and butt joint. There is still a big deficiency in terms of service life, and it is difficult to meet people's requirements for use.

Method used

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Embodiment Construction

[0015] A manufacturing process for the glass tube shell of an electrodeless lamp, the process steps are as follows:

[0016] 1) Tube cleaning: Soak the glass tube in acid solution, take it out and wash it, then soak it in pure water, then take it out and dry it, and let it cool down to room temperature naturally;

[0017] The specific operation is as follows: First, completely soak the glass tube in the acid solution, the acid solution is hydrofluoric acid, the ratio of hydrofluoric acid to water is 1:80, the pH value is between 7 and 8, and the soaking time is 2 to 3 minutes. Then take it out and wash it and then soak it in pure water. The conductivity of pure water is less than 6us / cm. The soaking time is 2-3 minutes, so as to completely eliminate the residual acid. Finally, put the cleaned glass tube into the dryer and bake it for 5 minutes. The baking temperature is set to 70°C, and after 10 minutes of heat preservation, it is naturally cooled to room temperature and passe...

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PUM

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Abstract

The invention discloses a technique for manufacturing a glass tube case of an electrodeless lamp. The technique comprises seven steps of washing a pipe, coating a film, coating powder, baking the power, wiping the power, butt jointing and annealing. According to the technique for manufacturing the glass tube case of the electrodeless lamp, disclosed by the invention, the evenness and the density of the inner wall of the glass tube are improved by adding a film coating technique so that the adhesion uniformity of the powder coating step is ensured; in addition, a multi-section temperature control design is utilized in the film coating, powder coating and powder baking steps so that the thickness of a coating is effectively ensured and the productivity is improved by 50%; in a powder baking step, a fan is additionally arranged and is aligned to an opening of a glass pipe so that an oxygen inlet is additionally arranged and the powder baking efficiency is improved; finally, after butt jointing, a high-temperature annealing treatment is carried out on a joint part to eliminate stress; in sum, the effects of the electrodeless lamp on aspects of lighting effect, light attenuation and service life are effectively improved.

Description

technical field [0001] The invention relates to a manufacturing process of a glass tube shell, in particular to a manufacturing process of a glass tube shell of an electrodeless lamp. Background technique [0002] Electrodeless lamp is a lighting product without filament and electrode, which is the abbreviation of electrodeless gas discharge fluorescent lamp. Plasma is formed. When the plasma excited atoms return to the ground state, they radiate ultraviolet rays, and the fluorescent powder on the inner wall of the bulb is excited by ultraviolet rays to produce visible light. [0003] At present, the manufacturing process of the glass shell of the electrodeless lamp is generally to clean the glass tube first, and then to powder coat, bake the powder, rub the powder, and butt joint. All also have very big deficiency aspect service life, be difficult to meet people's use requirement. Contents of the invention [0004] In order to solve the above problems, the purpose of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J9/24H01J9/22
Inventor 谭国振何文丰
Owner GUANGDONG ELX LIGHTING TECH
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