Research on the forming technique and surface treatment process of quartz glass bulbs for arc tubes

Author

He, Rongkai ; Lv, Jiadong ; Wang, Haiou ; Liu, Peng ; Zhao, Jianyu

Author_Institution

Eng. Res. Center of Minist. of Educ. for New Light Source Technol. & Equip., Southeast Univ., Nanjing, China

fYear

2011

fDate

15-17 July 2011

Firstpage

7628

Lastpage

7631

Abstract

Arc tube bulbs for metal halide lamps are made from quartz glass. Generally, bulbs come in ellipsoidal or spherical shapes with both ends necked down. Quartz glass tubes are melted by flame heating and stockpiled, and then burned to shaped bulbs by means of clamping or roller finder method. After that, cleanse the surface of bulbs to remove silica powder, and separate out hydroxyls in a high-temperature vacuum furnace. Bulbs prepared in such a way can improve the quality of arc tubes and prolong the service life of arc tubes.

Keywords

arc lamps; metal vapour lamps; quartz; surface treatment; arc tubes; clamping; ellipsoidal shapes; flame heating; forming technique; high-temperature vacuum furnace; hydroxyls; metal halide lamps; quartz glass bulbs; roller finder method; silica powder; spherical shapes; surface treatment process; Electrodes; Electron tubes; Fires; Glass; Metals; Silicon compounds; Surface treatment; Quartz glass; arc tube bulb; bulb forming technique and bulb surface treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988816

Filename

5988816