Rotary fire head device for sealing quartz glass tubular device and method thereof

Abstract

The invention discloses a rotary fire head device for sealing a quartz glass tubular device and a method thereof. The rotary fire head device comprises a mounting base, a rotary driving device, a firehead body, a rotary fire head core and an air inlet structure, the rotary driving device can output a rotary driving force, the fire head body is fixed on the mounting base and is provided with a cylindrical inner cavity along the axis, the fire head core is coaxially arranged in the cylindrical inner cavity of the fire head body and can rotate around the axis of the fire head core in the cylindrical inner cavity, one end of the fire head core is connected with a power output end of the rotary driving device, and the other end is provided with a burner of the air inlet structure. Therefore, the rotary flame on the rotary fire head core is used for sealing the quartz glass tubular device, the flame is sprayed out from the fire nozzle, the fire power is concentrated, the influence of the flame temperature on peripheral facilities is small, and the boundary dimension and the contour shape of the quartz glass sealing position are easy to control.

Description

technical field [0001] The invention relates to the processing field of quartz glass tubular devices, in particular to a rotary burner device and method for sealing arc tubes of high-pressure gas discharge lamps and arc tubes of special light sources. Background technique [0002] The sealing process of quartz glass tubular devices, such as arc tubes of metal halide lamps, arc tubes of mercury lamps, arc tubes of automobile xenon headlights, etc., all use paired burners or ring burners to heat the quartz glass to be sealed, and then use The mold is used to press and form the parts to be sealed. Since the temperature drops suddenly when the quartz glass is pressed, it is easy to generate stress at the glass seal, and the pressure resistance of the seal of the quartz glass tubular device is low. [0003] For example, for the sealing of the electrode molybdenum foil and quartz glass in the arc tube of the ultra-high pressure mercury lamp, and the sealing of the quartz glass at ...

AI Technical Summary

Problems solved by technology

[0003] For example, for the sealing of the electrode molybdenum foil and quartz glass in the arc tube of the ultra-high pressure mercury lamp, and the sealing of the quartz glass at the end of the arc tube of the electrodeless metal halide lamp, the pressure in the arc tube is high when the lamp is lit, and the sealing method of quartz glass cannot guarantee the arc tube. If you do not use mold pressing, use paired burners and ring burners to process quartz glass to seal, and use negative pressure in the lamp tube, it is difficult to guarantee the outer dimension of the seal, and the shape Not good, the glass is prone to defects such as crystallization; at the same time, the flames of paired burners and ring burners have a great impact on the temperature of surrounding facilities, and it is difficult to protect the liquid mercury and pills in the bulb

Images