A rotary fire head device and method for sealing quartz glass tubular devices

Abstract

The invention discloses a rotary burner device and a method for sealing quartz glass tubular devices. The rotary ignition device includes a mounting seat, a rotary driving device, a firing body, a rotating firing core, and an air intake structure. The rotating driving device can output a rotating driving force; the firing body is fixed on the mounting seat and a cylindrical inner cavity is arranged along the axis; The shaft is placed in the cylindrical inner cavity of the burner body and can rotate around its own axis in the cylindrical inner cavity; one end of the burner core is connected to the power output end of the rotary drive device, and the other end is installed with the nozzle of the air intake structure. It can be seen that the present invention adopts the rotary flame on the rotary burner core to seal the quartz glass tubular device, the flame is ejected from the burner nozzle, the firepower is concentrated, the flame temperature has less influence on the surrounding facilities, and it is easy to control the temperature of the quartz glass sealing place. Dimensions and outline shapes.

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 ...

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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

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