Glass manufacture device and manufacture method for high-transmittance optical glass

A glass manufacturing and glass liquid technology, applied in the field of glass manufacturing, can solve problems such as affecting production and electrode corrosion, and achieve the effects of prolonging service life, reducing corrosion, and not easy to oxidize and corrode

Active Publication Date: 2017-10-27
CDGM OPTICAL GLASS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a glass manufacturing device, aiming to solve the problem that the electrodes are prone to corrosion during the use of the existing glass manufacturing device and affect the quality of the produced glass

Method used

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  • Glass manufacture device and manufacture method for high-transmittance optical glass
  • Glass manufacture device and manufacture method for high-transmittance optical glass

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Experimental program
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Effect test

Embodiment

[0050] The composition of an optical glass is as follows, in mass percentage: SiO 2 : 30%, BaO: 20%, TiO 2 : 15%, Nb 2 o 5 : 15%, Na 2 O: 13%, CaO: 3%, ZrO 2 : 3%, Sb 2 o 3 : 1%, the refractive index is 1.84444, the Abbe dispersion coefficient is 23.90, and the 400nm transmittance is 0.74.

[0051] The process of making above-mentioned optical glass by the inventive method is as follows:

[0052] The glass manufacturing device with the following structure is used for manufacturing, and the glass manufacturing device includes a melting tank 100, an electrode 200, a clarifying tank 400 and a discharge tank 500;

[0053] The melting pool 100 is provided with a melting chamber 101 for melting glass raw materials into molten glass, and the melting pool 100 is provided with a feeding part 102 communicating with the melting chamber 101; the top of the melting pool 100 is provided with a melting pool Cover 110, the bottom of the melting pool 100 is provided with an air injecti...

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Abstract

The invention belongs to the technical field of glass manufacture, particularly discloses a glass manufacture device and a manufacture method for high-transmittance optical glass, and aims to solve the problem that an electrode easily generates corrosion to influence the quality of produced glass in a traditional glass manufacture device use process. The glass manufacture device comprises a melting tank and an electrode, wherein a melting cavity is arranged in the melting tank; the electrode is arranged on the side wall of the melting cavity; the upper edge of the electrode is positioned below the upper limit of the liquid level of vitreous humour. The manufacture method for high-transmittance optical glass adopts the glass manufacture device to manufacture the high-transmittance optical glass. Since the electrode is under the liquid level of vitreous humour in a production process and only the vitreous humour is in contact with the electrode, the chemical property of the electrode is stable, oxide etch is unlikely to generate, and service life is prolonged; in addition, when a glass raw material is continuously or intermittently supplied to the melting tank, since a bare electrode is not arranged above the vitreous humour, the electrode is prevented from being subjected to powerful thermal shock, and the fatigue or damage of the electrode due to thermal shock can be avoided.

Description

technical field [0001] The invention belongs to the technical field of glass manufacturing, and in particular relates to a glass manufacturing device and a manufacturing method of high-transmittance optical glass. Background technique [0002] Glass is mainly manufactured from powdered glass component oxides, which are melted at high temperatures. Especially for optical glass, in order to better obtain the necessary homogeneous optical properties, not only the ratio of raw materials is strictly required during manufacture, but also the raw materials are required to be put into the melting container in an appropriate amount one by one. [0003] At present, a glass manufacturing device that uses electrodes to heat and melt molten glass in a container is a widely used glass manufacturing device. However, this type of glass manufacturing device is often heated by inserting electrodes on the top of the melting vessel, for example: Patent No. ZL200310103685.4 discloses a glass ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B5/027C03B3/00C03B5/193C03C3/062C03C4/00
CPCC03B3/00C03B5/027C03B5/193C03C3/062C03C4/00Y02P40/57
Inventor 孔祥杭王朝晖吴缙伟云仕东樊莉唐亚军刘小宁肖波王雨轩
Owner CDGM OPTICAL GLASS
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