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A light-weight flexible radiation-resistant glass cover sheet and its preparation method

A glass cover sheet, anti-radiation technology, applied in glass manufacturing equipment, glass production, glass cutting devices, etc., can solve the problems of aerospace vehicles losing power supply, unable to guarantee solar light transmittance, and reducing transmittance, etc. To achieve the effect of reducing density, good resistance to space particle impact, and reducing viscosity

Active Publication Date: 2018-01-02
QINHUANGDAO XINGJIAN SPECIAL GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary colorless glass generally does not change its visible light transmission performance when used in a normal environment, but when the glass is used in a space vehicle, it will receive radiation from high-energy particles or rays, and most of the glass is exposed to various high-energy particles. Under the radiation of sunlight or radiation, it will cause changes in color and transmittance, make the glass deteriorate, and the transmittance will drop significantly. Sufficient sunlight transmittance cannot be guaranteed, and the spacecraft will lose a reliable power supply.

Method used

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  • A light-weight flexible radiation-resistant glass cover sheet and its preparation method
  • A light-weight flexible radiation-resistant glass cover sheet and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A light-weight flexible radiation-resistant glass cover sheet, the raw material composition of which is: by mass percentage, SiO 2 : 53.9%, Al 2 o 3 : 0.5%, B 2 o 3 : 13.2%, MgO: 8.8%, Na 2 O: 5.1%, Li 2 O: 12.5%, K 2 O: 0.1%, CeO 2 : 4.8%, P 2 o 5 : 1.1%. All the raw materials are of analytical grade.

[0033] The preparation method of the light-weight flexible radiation-resistant glass cover sheet is as follows:

[0034] A. Ingredients: Weigh each raw material according to the raw material composition of the above-mentioned cover glass, mix evenly, and set aside;

[0035] B. Feeding: Take the melting crucible and heat it. When the temperature of the melting crucible is 700-800°C, carry out the first stage of feeding. The amount of feeding is the entire volume of the melting crucible; after the first stage of feeding, continue to heat up. When the temperature is 1530-1560°C, the second stage of feeding is carried out. At this time, since part of the raw mat...

Embodiment 2

[0046] A light-weight flexible radiation-resistant glass cover sheet, the raw material composition of which is: by mass percentage, SiO 2 : 50.8%, Al 2 o 3 : 0.7%, B 2 o 3 : 15.9%, MgO: 10.2%, Na 2 O: 6%, Li 2 O: 11.1%, K 2 O: 0.5%, CeO 2 : 4.6%, P 2 o 5 : 0.2%. All the raw materials are of analytical grade.

[0047] The preparation method of the light-weight flexible radiation-resistant glass cover sheet is as follows:

[0048] A. Ingredients: Weigh each raw material according to the raw material composition of the above-mentioned cover glass, mix evenly, and set aside;

[0049] B. Feeding: Take the melting crucible and heat it. When the temperature of the melting crucible is 700-800°C, carry out the first stage of feeding. The amount of feeding is the entire volume of the melting crucible; after the first stage of feeding, continue to heat up. When the temperature is 1530-1560°C, the second stage of feeding is carried out. At this time, since part of the raw mate...

Embodiment 3

[0060] A light-weight flexible radiation-resistant glass cover sheet, the raw material composition of which is: by mass percentage, SiO 2 : 53%, Al 2 o 3 : 0.6%, B 2 o 3 : 14%, MgO: 9.5%, Na 2 O: 5%, Li 2 O: 12.5%, K 2 O: 0.2%, CeO 2 : 4.7%, P 2 o 5 : 0.5%. All the raw materials are of analytical grade.

[0061] The preparation method of the light-weight flexible radiation-resistant glass cover sheet is as follows:

[0062] A. Ingredients: Weigh each raw material according to the raw material composition of the above-mentioned cover glass, mix evenly, and set aside;

[0063] B. Feeding: Take the melting crucible and heat it. When the temperature of the melting crucible is 700-800°C, carry out the first stage of feeding. The amount of feeding is the entire volume of the melting crucible; after the first stage of feeding, continue to heat up. When the temperature is 1530-1560°C, the second stage of feeding is carried out. At this time, since part of the raw materials...

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Abstract

A light-weight flexible radiation-resistant cover glass, the raw material composition of the cover glass is: by mass percentage, SiO2: 50.8-62.5%, Al2O3: 0.2-0.7%, B2O3: 10-15.9%, MgO: 8‑10.6%, Na2O: 3‑6%, Li2O: 11.1‑16.4%, K2O: 0.1‑0.5%, CeO2: 4.6‑5.1%, P2O5: 0.2‑1.6. The preparation method of a light-weight flexible radiation-resistant glass cover sheet includes the following steps: A, batching; B, feeding; C, melting; D, casting; E, annealing; F, cutting; G , Grinding; H, Polishing; I, Cleaning; K, Drying; L, Low-temperature ion exchange to obtain a light-weight flexible radiation-resistant glass cover slip. The weight of the light-weight flexible radiation-resistant glass cover sheet prepared by the invention is reduced, the take-off weight of the satellite is reduced, and the launch cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of supporting products for aerospace equipment, and relates to the field of special glass for space, in particular to a light-weight flexible radiation-resistant glass cover sheet and a preparation method thereof. Background technique [0002] In the orbital space of the earth, there are radiations such as cosmic rays from the Milky Way, the radiation belts of the earth, and solar particles. When the spacecraft is in space, it is violated by space high-energy particles and rays, and the solar panels on the two wings of the spacecraft will be damaged. wear, causing a short circuit and failure, in order to protect the solar cell, the solar cell is usually covered with a glass cover. Ordinary colorless glass generally does not change its visible light transmission performance when used in a normal environment, but when the glass is used in a space vehicle, it will receive radiation from high-energy particles or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/076C03B3/00C03B33/02B24B7/24
CPCY02P40/57
Inventor 卢勇
Owner QINHUANGDAO XINGJIAN SPECIAL GLASS
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