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Optical glass melting furnace and melting method

A technology of optical glass and melting furnace, applied in glass furnace equipment, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of long production cycle, high cost, long capital turnover time, etc., achieve short contact time, prolong life, and less impurities Effect

Active Publication Date: 2019-06-18
HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to this reason, the production cycle of the product is long, so a large amount of inventory is required to meet customer requirements, the capital turnover time is long, and the cost is high

Method used

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  • Optical glass melting furnace and melting method
  • Optical glass melting furnace and melting method
  • Optical glass melting furnace and melting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Taking optical glass with a standard refractive index of 1.84666 as an example, the optical glass melting furnace device of the present invention is used to melt the optical glass. Three boxes of batch materials prepared by the same formula are put into the feeding ports of three sets of inclined raw material melting furnaces of I, II, and III, and the input amount of the three sets of inclined raw material melting furnaces is set to be the same, and the same implementation is carried out. The process temperature and the rotation speed of the chemical material pipe are also set to the same speed to melt the molten glass. Samples are taken from the three inlet nozzles every 2 hours, and the rapid quenching at -100°C / H is carried out to measure the refractive index. no 1 , n 2 , n 3 , for the convenience of visual observation, use Δn 1 , Δn 2 , Δn 3 to express n 1 , n 2 , n 3 The difference from the standard refractive index, and record the measurement results in...

Embodiment 2

[0028] Taking optical glass with a standard refractive index of 1.80610 as an example, an optical glass melting furnace device of the present invention is used to melt the optical glass. Five sets of inclined raw material melting furnaces I, II, III, IV, and V are used, and five boxes of batch materials prepared with the same formula are put into the feeding port, and the input amount of the five sets of inclined raw material melting furnaces is set to The same, and the same process temperature is implemented, and the rotation speed of the material pipe is also set to the same speed for melting glass. Samples are taken from the five inlet nozzles every 2 hours, and the rapid quenching at -100℃ / H is carried out to measure the refractive index. The samples at the inlet nozzles of I, II, III, IV, and V inclined raw material melting furnaces correspond The refractions are n 1 , n 2 , n 3 , n 4 , n 5 , for the convenience of visual observation, use Δn 1 , Δn 2 , Δn 3 , Δn ...

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Abstract

The invention discloses an optical glass furnace and a melting method and belongs to the technical field of optical glass producing. The defect that glass waste needs to be prepared in advance during continuous melting of low-viscosity optical glass is mainly overcome. According to the device, qualified optical glass can be directly melted by using raw materials. The optical glass furnace is mainly characterized in that the raw materials are simultaneously melted by multiple sets of inclined raw material melting furnaces, a glass liquid collection crucible and a lead-in pipe so as to form glass liquid of different refractive indexes; the optical glass liquid meeting standard requirements can be obtained by adjusting a single or multiple feeding formulas and the corresponding amount of the melted materials; the glass liquid flows into a melting pot, is stirred and mixed, flows into a clarifying pot through a communicating pipe, and then flows into a working pot through another communicating pipe after high-temperature clarification and bubble removal are performed, and stripe-free glass liquid is obtained via stirring, flows out of a leakage pipe and is molded into qualified optical glass strips. The optical glass furnace disclosed by the invention is particularly suitable for producing optical glass products of which the glass wastes need to be prepared in advance.

Description

technical field [0001] The invention belongs to the technical field of optical glass manufacturing. In particular, it relates to an optical glass melting furnace and a method for melting optical glass using the melting furnace. Background technique [0002] At present, the melting of optical glass basically adopts continuous melting method to ensure the quality of optical glass products. For optical glass with low viscosity, it is generally produced by full platinum continuous melting furnace. Due to the high content of volatile components in the formula of low-viscosity optical glass, the refractive index of optical glass fluctuates greatly. Fluctuations are caused by volatilization and flying of material components, while optical glass has high requirements on optical indicators such as refractive index, and fluctuations in refractive index will lead to poor imaging. In order to obtain high-quality optical properties, it is generally necessary to use a single crucible to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B5/16
CPCC03B5/16
Inventor 姜敬陆王晓琳张娇龙
Owner HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD