Quartz glass rod flame polishing and annealing device and method thereof

A quartz glass rod, flame polishing technology, applied in glass production and other directions, can solve the problems of excessive bending, low production efficiency, increase heating time of quartz glass rod, etc., and achieve the effect of stable clamping method and light weight

Active Publication Date: 2020-10-27
中建材衢州金格兰石英有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After flame polishing in the traditional process, put it in an annealing furnace and anneal at 1000-1100°C for more than 2 hours. Thin or long quartz rods will bend, and the bending degree exceeds the standard and is unqualified; and this annealing method needs to increase the heating of the quartz glass rod Time, low production efficiency, high production cost
[0005] Therefore, this application provides a new device for flame polishing and annealing of quartz glass and the supporting process of the device to solve the problems that traditional polishing devices cannot be directly annealed and the production efficiency is low

Method used

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  • Quartz glass rod flame polishing and annealing device and method thereof
  • Quartz glass rod flame polishing and annealing device and method thereof

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Embodiment 1

[0033] Such as Figure 1-2 As shown, the present invention discloses a device for flame polishing and annealing of quartz glass rods, which includes a bed 1 with a rack slide 11, a fixed bed head 2 arranged at one end of the bed 1, and a bed transverse to the rack slide 11. Slidingly connected mobile bedside 3; the bed 1 between the fixed bedside 2 and the mobile bedside 3 is provided with a flame operating table 4 slidingly provided with the rack slideway 11, and the fixed bedside 2 and the mobile bedside The head of the bed 3 is respectively provided with a left part chuck 21 and a right part chuck 31 which are all facing the flame operation platform 4. In a specific embodiment of the present invention, a main burner 41 and several The auxiliary burners 42 arranged at equal intervals, the main burner 41 and the auxiliary burner 42 are located on the same horizontal line, and the combustion temperature is uniformly reduced from the main burner 41 to the auxiliary burner 42 si...

Embodiment 2

[0045] In addition, the present invention also discloses a flame polishing and annealing method for a quartz glass rod, which is characterized in that it includes the following steps:

[0046] S1 loading at the mobile end: first clamp the quartz glass rod on the right chuck at the head of the mobile bed; start the driver to drive the right chuck to rotate at a constant speed;

[0047] S2 Preheating: Turn on the main burner and control the supply flow, direction and angle of the external hydrogen and oxygen supply devices, turn on the servo motor, adjust the displacement speed controller, control the horizontal reciprocating operation of the flame operating table, and preheat the quartz glass rod ;

[0048] S3 polishing and annealing: move the flame to near the middle of the quartz glass rod, adjust the height and angle of the auxiliary flame nozzle and the supply of hydrogen and oxygen in the auxiliary heating area in advance, and turn on each auxiliary flame nozzle. At this t...

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Abstract

The invention relates to a quartz glass rod flame polishing and annealing method which is characterized by comprising the following steps: S1, mobile terminal feeding: firstly, clamping a quartz glassrod and rotating the quartz glass rod at a constant speed; S2, preheating: turning on a main combustor, controlling the required temperature, controlling a flame operation table to transversely reciprocate, and preheating the quartz glass rod; S3, polishing and annealing: the height and the angle of the auxiliary flame nozzle and the hydrogen and oxygen supply amount of the auxiliary heating areaare adjusted in advance; each auxiliary flame nozzle is opened; and at the moment, the displacement speed controller is adjusted, the flame operation table drives the flame spray gun fixed to the flame gun frame to heat and polish the quartz glass rod at a constant speed, meanwhile, the distance between the auxiliary combustors and the hydrogen and oxygen amount of each combustor control the temperature to form a temperature gradient, the quartz glass rod can be slowly cooled, and the annealing effect is achieved. The method has the advantages of being good in production quality and high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of glass thermal processing, in particular to a device and method for flame polishing and annealing a quartz glass rod. Background technique [0002] Quartz glass rods are widely used in the optical fiber manufacturing industry as splice rods, lead rods, and holding rods for VAD processes in the optical fiber manufacturing process. Such products usually require quartz glass rods to have good surface finish and light transmittance. In the early dimension and shape processing of quartz glass rods, turning and grinding cannot meet the above requirements, and the usual polishing methods (cold grinding, polishing) are also difficult to achieve polishing of cylindrical complex structure products. At present, the flame polishing technology is usually used, that is, the surface of the processed workpiece after fine treatment is heated to the melting temperature by using an oxyhydrogen flame. Smooth polished surface...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B29/02C03B25/02
CPCC03B29/02C03B25/02Y02P40/57
Inventor 花宁王友军李怀阳隋镁深孔敏蔡广勇秦建鸿丛吉国余振华
Owner 中建材衢州金格兰石英有限公司
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