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Secondary profiling blank preparation device and blank preparation method

A preparation device and secondary pressing technology, which is applied in glass pressing, glass manufacturing equipment, feeding trough, etc., to achieve the effect of improving the production efficiency of pressing and reducing the glass dividing process

Pending Publication Date: 2020-09-04
HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the above-mentioned optical glass products cannot be directly used for secondary molding, the present invention designs a glass blank preparation device for secondary molding, which is matched with the manufacturing method and manufacturing process of the invention, and can be directly used in the production of optical glass. Produce blanks for secondary molding, so that the production of optical glass can be directly connected to the production of optical element molding, reducing the manufacturing cost of multiple processes

Method used

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  • Secondary profiling blank preparation device and blank preparation method

Examples

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Embodiment

[0028] Example: A certain brand of optical glass has a refractive index of 1.72000, an Abbe number of 50.34, and a specific gravity of 3.87 grams per cubic centimeter. The viscosity-temperature corresponding data of glass liquid is as follows:

[0029]

[0030] The process of preparing an optical glass blank by using the device and method of the invention is as follows:

[0031] After the glass raw material is smelted and homogenized in the furnace, it flows out through the furnace leakage pipe 100. The diameter of the furnace leakage pipe 100 is calculated to match the unit discharge volume. By controlling the temperature of the leakage pipe, the glass can flow out of the kiln. The viscosity is about 10 poise when the leakage material pipe 100 of the furnace flows out. The glass liquid of this brand flows into the glass viscosity regulating forehearth 200 through the leakage pipe 100 of the kiln. The cooling temperature of the third cavity forehearth 203 is about 60° C.,...

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Abstract

The invention discloses a secondary profiling blank preparation device and a blank preparation method. The invention belongs to the technical field of secondary profiling of optical glass smelting. According to the invention, an optical glass plate material is not cut into small blocks to manufacture a secondary profiling blank, and a blank for profiling is directly manufactured in the optical glass forming stage. The method is mainly characterized in that the viscosity of pre-rolled molten glass is adjusted to the viscosity at which the molten glass can be directly extruded and formed througha viscosity adjusting device, and the molten glass is extruded into a weight-controlled blank through an extrusion forming device. According to the method and the device, a plurality of procedures ofsecondary profiling material preparation can be reduced, the material preparation loss is avoided, and the material and energy loss can be reduced while the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of optical glass melting and secondary pressing. It specifically relates to a glass blank preparation device and preparation method used in the pre-secondary molding process of optical glass. It is mainly used for the secondary molding process of optical glass elements with small volumes. It belongs to the molding process of optical glass melting and belongs to the secondary molding process. The front-end process of pressing is the glass blank process. Background technique [0002] The first process of optical glass secondary pressing is to make pressed glass blanks. The common method is to cut the glass sheet into required volumes, such as pressing a certain brand of glass secondary moldings. After the specifications are determined, the weight can be calculated. Use Cut the sheet, grind the edges and corners, weigh and other processes to prepare glass blanks of equal weight, then heat and soften the glass ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B7/06C03B7/07C03B7/16C03B11/00
CPCC03B7/06C03B7/07C03B7/16C03B11/00
Inventor 周希光寇小勇胡弦徐光以杨睿
Owner HUBEI NEW HUAGUANG NEW INFORMATION MATERIALS CO LTD
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