Method for improving uniformity of high-temperature smelted calcium borosilicate glass

A technology of high-temperature smelting and calcium borosilicate, applied in glass rolling, glass forming, glass manufacturing equipment, etc., to achieve the effect of improving product performance

Inactive Publication Date: 2021-09-17
CHINA ZHENHUA GRP YUNKE ELECTRONICS
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of how to improve the uniformity of lime borosilicate glass when the existing lime borosilicate glass is smelted at high temperature

Method used

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  • Method for improving uniformity of high-temperature smelted calcium borosilicate glass
  • Method for improving uniformity of high-temperature smelted calcium borosilicate glass
  • Method for improving uniformity of high-temperature smelted calcium borosilicate glass

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Embodiment Construction

[0025] The method for improving the uniformity of high-temperature smelting calcium borosilicate glass is compared with the traditional process as follows:

[0026] 1. Selection of glass raw materials: Two sets of glass formulas are designed. The A component uses nano-silica, calcium carbonate, and boric acid as raw materials, and the B component uses 100 mesh quartz sand, calcium oxide, and boron trioxide as raw materials. Calculate the amount of raw materials according to the ratio in Table 1.

[0027] Table 1 Raw material composition list (mass percentage)

[0028]

[0029] 2. Mixing of raw materials: Use a high-speed disperser or a coulter type high-efficiency mixer to fully mix the raw materials.

[0030] 3. High-temperature smelting: use traditional crucible smelting and new stirring smelting methods to smelt A and B glasses respectively, the melting temperature is 1500°C, and the holding time is 3h±0.1h.

[0031] 4. Glass cooling: Use a double-roll cooling mill to ...

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Abstract

The invention discloses a method for improving the uniformity of high-temperature smelted calcium borosilicate glass. The method comprises the following steps: selecting nanoscale silicon dioxide powder, boric acid and calcium carbonate as raw materials; carrying out burning loss test on nano silicon dioxide, carbonic acid and calcium borate to obtain burning loss values of the raw materials; testing the purity of the raw material by using XRF or ICP to obtain the purity value of the raw material; setting a design value of the raw material, and calculating the amount of the raw material needing to be actually added; grinding and mixing boric acid and diboron trioxide by using dry grinding; conducting glass melting by using a high-temperature stirring melting method, heating the glass until the glass is completely melted, and starting stirring, so as to fully homogenize the glass in the melting process; and cooling the molten glass liquid into transparent and uniform glass sheets by using a cooling and rolling process. The invention solves the problem of local non-uniformity of glass components caused by glass phase splitting during high-temperature smelting of the existing calcium borosilicate glass, and improves the performance, quality and reliability of the calcium borosilicate glass. The invention is widely applied to the microwave electronic communication field.

Description

technical field [0001] The invention belongs to the field of electronic components, specifically, to the field of microwave electronic components, and more specifically, to the field of glass-ceramic materials for microwave electronic components. Background technique [0002] Lime borosilicate glass, as a kind of glass-ceramics, is widely used in building materials and electronic materials. However, due to the easy occurrence of phase separation in the smelting process of lime-borosilicate glass, resulting in uneven glass, the phase separation of glass is uncontrollable and has serious harm to the uniformity of glass performance. The main factors that cause glass phase separation are: glass formula, accuracy of glass raw material ingredients, glass melting process, etc. Regarding the formulation of glass, the softening point of lime borosilicate glass is fixed within a certain range in electronic materials, so the glass formulation is also within a certain range. The root ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C6/04C03C1/00C03B13/01
CPCC03C1/00C03B13/01
Inventor 张秀龚漫莉杜玉龙尚勇徐泽鹏杨俊何创创班秀峰王星
Owner CHINA ZHENHUA GRP YUNKE ELECTRONICS
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