Method for cleaning and treating lamp glass tubes comprises washing the glass tubes with an aqueous washing medium at a specified ph and temperature
A technology of glass lamp tubes and fluorescent lamps, which is applied in the field of fluorescent lamps for background lighting, and can solve the problems that the lamp tubes cannot meet the purpose of use and the glass has poor chemical corrosion resistance.
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Embodiment 1
[0125] SiO 2 66
[0126] Al 2 o 3 2.5
[0127] B 2 o3 18
[0128] Li 2 O 0.5
[0129] Na 2 O 0.5
[0130] K 2 O 7.5
[0131] MgO
[0132] CaO
[0133] SrO
[0134] BaO
[0135] ZnO 0.5
[0136] ZrO 2
[0137] As 2 o 3
[0138] Sb 2 o 3 0.5
[0139] Fe 2 o 3
[0140] TiO 2 4
[0141] Total 100
[0142] The geometric dimensions of the glass tube are as follows:
[0143] Outer diameter: 3.4mm
[0144] Inner diameter: 2.4mm
[0145] Wall Thickness: 0.5mm and
[0146] Glass tube length: 500mm.
[0147] The cleaning method of the present invention is carried out on glass tubes having the above composition and dimensions. In this case, the shrinkage (“shrinkage”) of the individual glass tubes in mm at different pH values as a function of the different cleaning times and cleaning temperatures was determined.
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[0148] The results are sho...
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