Title :
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
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;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
DOI :
10.1109/MACE.2011.5988816
