Method for machining full-glass shell compact energy-saving fluorescent lamp

Abstract

The invention discloses a method for machining a full-glass shell compact energy-saving fluorescent lamp, which comprises the following steps: machining a glass shell by using a conventional method; positioning the glass shell firmly on a fixture by vacuum negative pressure and cutting the glass shell into an upper half glass shell and a lower half glass shell by a CO2 laser with the CO2 laser wavelength of 10.6 nm; installing a strip lamp component in the lower half glass shell; positioning the upper half glass shell and the lower half glass shell firmly and accurately on the fixture by vacuum negative pressure and aligning two cuts to fit each other; when heating the glass shells to 400 DEG C by preheating flame, welding the glass shells by the CO2 laser with the CO2 laser wavelength of 10.6 nm; and annealing the welded glass shell by an annealing system and taking off a finished product. The invention has the advantages of greatly improving the machining reliability, lowering the difficulty in machining, lowering the stress of the glass shell and improving the yield of products.

Description

technical field [0001] The invention relates to a full-glass bulb compact energy-saving fluorescent lamp, in particular to a processing method for a full-glass bulb compact energy-saving fluorescent lamp. Background technique [0002] Since the lamp tubes of commonly used energy-saving lamps are mostly exposed and easy to be damaged, people set a glass cover on the outside of the energy-saving lamps for protection. increasingly recognized by the market. Recently, there have been energy-saving lamps with no plastic parts on the outside of the lamp body, and only a metal lamp cap and a glass shell with an all-glass shell. This kind of lamp has further shown its market appeal because it looks more like an ordinary light bulb. However, since the size of the compact energy-saving fluorescent lamp tube is relatively large, the opening on the casing needs to be large enough to put it in, which not only enlarges the shape of the casing, but also increases the manufacturing cost. T...

AI Technical Summary

Problems solved by technology

However, in the current processing method, due to the poor stability of the flame, the low accuracy rate, and the large diameter of the flame injection point, etc., there will be disadvantages such as unevenness, depression, and roughness of the cutting surface of the glass bulb, which will affect the coincidence during welding; At the same time, the glass bulb at the welding place is prone to deformities, irregular welds and other undesirable phenomena.

The use of flame processing not only increases the difficulty of processing, but also causes greater stress in the fusion part, and even cracks in the fusion part after a long time. The main reason below %