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Nano-grade glass fibre cotton and mfg. technology and apparatus thereof

A technology of glass fiber wool and manufacturing process, which is applied in the field of glass fiber cotton and can solve the problems of not having the characteristics of nanomaterials and the like

Inactive Publication Date: 2005-06-08
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Third, asbestos materials can only reach the nanoscale in size, but this fiber does not have the characteristics of nanomaterials

Method used

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  • Nano-grade glass fibre cotton and mfg. technology and apparatus thereof
  • Nano-grade glass fibre cotton and mfg. technology and apparatus thereof
  • Nano-grade glass fibre cotton and mfg. technology and apparatus thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] formula:

[0039] SiO 2 600g, CaO 50g, Na 2 O 110g, K 2 O 10g, Li 2 O 60g, TiO 2 150g, Al 2 o 3 30g, MgO 20g.

[0040] Manufacturing process (combined with the accompanying drawings in the manual): Take the raw materials according to the formula, wash them, put them into the furnace 1-1 and heat them to 1400°C for melting, the molten glass flows out through the leakage holes of the platinum-rhodium alloy leakage plate 1-2, and the aperture of the leakage nozzle is φ1. 8mm, the drawing speed is 2.5m / min, drawn into fiber 1-3, the diameter of the drawn fiber is controlled at 120μm, pulled by the rubber stick 1-4, sent to the flame ejected from the injection combustion chamber 1-5, using natural gas As the injection medium, at a high temperature above 1500°C and a blowing airflow velocity of 600m / s, use the high-speed airflow ejected from the nozzle of the combustion chamber with a width of 6.0mm to make the glass filament into nano-sized glass fiber cotton 1-6, ...

Embodiment 2

[0042] formula:

[0043] SiO 2 600g, CaO 50g, Na 2 O 110g, K 2 O 10g, Li 2 O 60g, TiO2 150g, Al 2 o 3 30g, MgO20g.

[0044] Manufacturing process (combined with the accompanying drawings in the manual): take the raw materials according to the formula, wash them, send them to the furnace 1-1, heat them at 1400°C and melt them, and the molten glass flows out through the leak holes of the nickel-chromium alloy leak plate 1-2, and the hole diameter of the leak nozzle is 2.8mm , the wire drawing speed is 2.5m / min, drawn into fiber filaments 1-3, the diameter of the drawn fiber filaments is controlled at 150μm, and sent to the flame ejected from the injection combustion chamber 1-5 under the traction of the rubber stick 1-4, using natural gas as the Spray medium, under the high temperature of 1500 ℃ and the blowing air velocity of 600m / s, use the high-speed air flow ejected from the nozzle of the combustion chamber with a width of 6.0mm to make the glass fiber into nano-siz...

Embodiment 3

[0046] formula:

[0047] SiO 2 600g, CaO 50g, Na 2 O 110g, K 2 O 10g, Li 2 O 60g, TiO 2 150g, MgO 20g.

[0048] Manufacturing process (combined with the accompanying drawings in the manual): take the raw materials according to the formula, wash and mix them, send them to the furnace 1-1 and heat them to 1400°C for melting, and the molten glass flows out through the leakage holes of the platinum-rhodium alloy leakage plate 1-2, and the aperture of the leakage nozzle is 1.9mm, the drawing speed is 2.8m / min, drawn into fiber filaments 1-3, the diameter of the drawn fiber filaments is controlled at 150μm, and sent to the flame ejected from the injection combustion chamber 1-5 under the traction of the rubber stick 1-4, using Petroleum liquefied petroleum gas is used as the injection medium, and at a high temperature above 1500°C and an injection airflow velocity of 650m / s, the glass filament is made into nano-sized glass fiber cotton by using the high-speed airflow ejected ...

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Abstract

A process for preparing the nano-class glass fibres includes such steps as proportionally mixing SiO2, CaO, Na2O, K2O, Li2O and TiO2, smelting, drawing wire, burning-blowning, and collecting. Its apparatus is composed of smelting furnace, drawing unit, burning-blowing unit and collector.

Description

technical field [0001] The invention relates to a glass fiber cotton, in particular to a nano-scale glass fiber cotton, and also relates to a manufacturing process and a manufacturing device thereof. Background technique [0002] With the improvement of the level of science and technology, industry, military, medicine, and electronic appliances all put forward higher requirements on the performance of fiber materials. Since the fiber diameter is an important factor affecting the performance of materials, the development of nano-scale fibers has great practical significance. [0003] The existing inorganic fibers, organic fibers, and metal fibers all have diameters ranging from a few microns to thousands of microns. Only asbestos fibers can reach the nanometer level. However, asbestos is a suspected carcinogen and has been banned by the European Community, the United States, and Japan. The use of asbestos-containing products has also been restricted in my country and will soon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B37/022C03B37/08C03C3/085C03C3/087
CPCC03C3/087C03C3/078
Inventor 邹宁宇沈善燮戴春勇顾云龙
Owner HOHAI UNIV
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