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High silica glass fiber, preparation method thereof and fireproof equipment

A high-silica glass fiber and silicon carbide technology, which is applied in the field of glass fiber preparation, can solve the problems of high viscosity at high temperature, difficult to wire drawing, high melting temperature and wire drawing temperature, and can reduce the high temperature viscosity and forming temperature, and enhance the ductility. Effect

Active Publication Date: 2021-02-09
LINYI HAOQUAN SILICA SAND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing high-silica glass fiber has high mechanical strength and good high-temperature performance, but the melting temperature and drawing temperature of this glass are high, the high-temperature viscosity is large, and it is not easy to draw

Method used

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  • High silica glass fiber, preparation method thereof and fireproof equipment
  • High silica glass fiber, preparation method thereof and fireproof equipment
  • High silica glass fiber, preparation method thereof and fireproof equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A high-silica glass fiber, mainly composed of the following raw materials in parts by weight: 78 parts of silicon dioxide, 16 parts of silicon carbide, 3 parts of aluminum oxide, 12 parts of diboron trioxide, 7 parts of sodium oxide, and 0.08 parts of rare earth oxide share. The rare earth oxide is composed of holmium oxide and niobium pentoxide in a weight ratio of 2:5.

[0032] A preparation method of high silica glass fiber, comprising the steps of:

[0033] (1) Weigh silicon dioxide, silicon carbide, alumina, diboron trioxide, and sodium oxide according to the specified parts by weight, grind and mix them into a primary mixture, and after the particle size of the primary mixture reaches the nanometer level, weigh them according to the specified parts by weight Weighing the rare earth oxide, adding it to the primary mixture, and continuing to mix to form the final raw material mixture, the particle size of the final raw material mixture reaches nanoscale;

[0034] ...

Embodiment 2

[0039] A high-silica glass fiber, mainly composed of the following raw materials in parts by weight: 70 parts of silicon dioxide, 10 parts of silicon carbide, 2 parts of aluminum oxide, 5 parts of diboron trioxide, 10 parts of sodium oxide, and 0.05 parts of rare earth oxide share. The rare earth oxide is composed of holmium oxide and niobium pentoxide in a weight ratio of 1:5.

[0040] A preparation method of high silica glass fiber, comprising the steps of:

[0041] (1) Weigh silicon dioxide, silicon carbide, alumina, diboron trioxide, and sodium oxide according to the specified parts by weight, grind and mix them into a primary mixture, and after the particle size of the primary mixture reaches the nanometer level, weigh them according to the specified parts by weight Weighing the rare earth oxide, adding it to the primary mixture, and continuing to mix to form the final raw material mixture, the particle size of the final raw material mixture reaches nanoscale;

[0042] ...

Embodiment 3

[0047] A high-silica glass fiber, mainly composed of the following raw materials in parts by weight: 80 parts of silicon dioxide, 20 parts of silicon carbide, 5 parts of aluminum oxide, 15 parts of diboron trioxide, 15 parts of sodium oxide, and 0.1 parts of rare earth oxide share. The rare earth oxide is composed of holmium oxide and niobium pentoxide in a weight ratio of 3:5.

[0048] A preparation method of high silica glass fiber, comprising the steps of:

[0049] (1) Weigh silicon dioxide, silicon carbide, alumina, diboron trioxide, and sodium oxide according to the specified parts by weight, grind and mix them into a primary mixture, and after the particle size of the primary mixture reaches the nanometer level, weigh them according to the specified parts by weight Weighing the rare earth oxide, adding it to the primary mixture, and continuing to mix to form the final raw material mixture, the particle size of the final raw material mixture reaches nanoscale;

[0050] ...

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Abstract

The invention relates to the technical field of glass fiber preparation, in particular to high-silica glass fiber and a preparation method thereof. The high silica glass fiber is mainly prepared fromthe following raw materials in parts by weight: 70-80 parts of silicon dioxide, 10-20 parts of silicon carbide, 2-5 parts of aluminum oxide, 5-15 parts of diboron trioxide, 10-15 parts of sodium oxideand 0.05-0.1 part of rare earth oxide. The rare earth oxide is composed of holmium oxide and niobium pentoxide according to the weight ratio of (1-3): 5. The holmium oxide and niobium pentoxide are introduced according to the optimized proportion, so that the high-temperature viscosity and forming temperature of the glass are effectively reduced, the ductility of the frit is enhanced, and the high-strength glass fiber is obtained at relatively low melting temperature and wiredrawing temperature.

Description

technical field [0001] The invention relates to the technical field of glass fiber preparation, in particular to a high-silica glass fiber, a preparation method thereof and fireproof equipment. Background technique [0002] High silica fiber is the abbreviation of high-purity silica amorphous continuous fiber. Its finished products mainly include continuous yarn, rope, sleeve, mesh, and sewing products. It is mainly used for 1000-degree ultra-high temperature fire insulation, The fiber diameter is greater than 5 microns, does not contain any asbestos or ceramic wool, and is completely harmless to human health. High silica fiber can maintain good strength and elasticity for a long time at 1000 degrees Celsius. It is an effective thermal barrier for ultra-high temperature heat flow and jet flames, and a reliable protection device for personnel facilities; it has low thermal conductivity and good resistance to high thermal shock. It is inert to most chemicals, has good corrosi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/00C03B37/025E06B5/16E06B9/15
CPCC03C13/00C03B37/025E06B9/15E06B5/16
Inventor 赵祥
Owner LINYI HAOQUAN SILICA SAND TECH
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