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Continuous ultrafine glass fibre and centrifugation manufacturing method thereof

A technology of ultra-fine glass fiber and glass fiber, which is applied in the field of continuous ultra-fine glass fiber, glass fiber, and centrifugal manufacturing of continuous ultra-fine glass fiber. It can solve the problems of producing continuous glass microfiber, achieve stable temperature, easy reaction process, Guaranteed continuity of effect

Active Publication Date: 2014-06-04
宣汉正原微玻纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, continuous glass microfibers cannot be produced by the centrifugal blowing method in China, and only glass wool and its products with a length of less than 150mm can be prepared. ) are detailed in

Method used

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  • Continuous ultrafine glass fibre and centrifugation manufacturing method thereof

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Effect test

Embodiment 1

[0023] The preparation method of the chopped continuous ultra-fine glass fiber that present embodiment centrifugation method comprises the following steps:

[0024] 1) In terms of mass, select 10 parts of borax, 41 parts of quartz sand, 8 parts of potassium feldspar powder, 5 parts of albite powder, 12 parts of dolomite, 19 parts of soda ash, and 2 parts of calcite;

[0025] 2) Heat the raw materials selected in step 1) to 1480°C to obtain molten glass;

[0026] 3) Grind with water abrasives to make the inner wall of the small hole of the centrifugal disc smooth, introduce the glass liquid in step 2) into the centrifugal plate with a rotation speed of 4000r / min, and the glass liquid is sprayed out from the small hole on the side wall of the centrifugal plate to form a fine glass flow; control the centrifugal During the process, the temperature of the molten glass in the centrifugal disc is 1300°C; the side wall of the centrifugal disc used in this embodiment is provided with 1...

Embodiment 2

[0032] The preparation method of the chopped continuous ultra-fine glass fiber that present embodiment centrifugation method comprises the following steps:

[0033] 1) By mass, select 8 parts of borax, 42 parts of quartz sand, 7 parts of potassium feldspar powder, 6 parts of albite powder, 11 parts of dolomite, 20 parts of soda ash, and 1 part of calcite;

[0034] 2) Heat the raw materials selected in step 1) to 1500°C to obtain molten glass;

[0035] 3) Grind with water abrasives to make the inner wall of the small hole of the centrifugal disc smooth, and introduce the glass liquid in step 2) into the centrifugal plate with a rotating speed of 3800r / min, and the glass liquid is sprayed out from the small hole on the side wall of the centrifugal plate to form a fine glass flow; control the centrifugal During the process, the temperature of the molten glass in the centrifugal disc is 1480°C; the side wall of the centrifugal disc used in this embodiment is provided with 8,000 sm...

Embodiment 3

[0041] The preparation method of the chopped continuous ultra-fine glass fiber that present embodiment centrifugation method comprises the following steps:

[0042] 1) In terms of mass, select 12 parts of borax, 40 parts of quartz sand, 9 parts of potassium feldspar powder, 4 parts of albite powder, 13 parts of dolomite, 18 parts of soda ash, and 3 parts of calcite;

[0043] 2) Heat the raw materials selected in step 1) to 1460°C to obtain molten glass;

[0044]3) Grind with water abrasives to make the inner wall of the small hole of the centrifugal disc smooth, introduce the glass liquid in step 2) into the centrifugal plate with a rotation speed of 4500r / min, and the glass liquid is sprayed out from the small hole on the side wall of the centrifugal plate to form a fine glass flow; control the centrifugal During the process, the temperature of the molten glass in the centrifugal disc is 1200°C; the side wall of the centrifugal disc used in this embodiment is provided with 15...

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Abstract

The invention discloses continuous ultrafine glass fibre. The glass fibre comprises following components by weight: 60-67 parts of SiO2, 2-6 parts of Al2O3, 3-7 parts of CaO, 1.5-4.5 parts of MgO, 0.1-2 parts of K2O, 14-18 parts of Na2O and 3-8 parts of B2O3. The diameter of the glass fibre is 1-5 [mu]m and the length of the glass fiber is 150-50000 mm. A method of manufacturing the continuous ultrafine glass fibre includes: selecting a certain amount of borax, quartz sand, potassium feldspar powder, albite powder, dolomite, sodium carbonate and calcite, mixing and smelting to obtain a glass liquid; feeding the glass liquid into a centrifugation disk having a revolving speed of 3800-4500 r / min and centrifuging to form glass trickle; and finally jetting and blowing to stretch the glass trickle by utilization of high-temperature fuel gas to form a finished product of the glass fibre. The diameter of the glass fibre is 1-5 [mu]m and the length of the glass fiber is 150-50000 mm. The glass fiber is high in strength.

Description

technical field [0001] The invention belongs to the field of inorganic non-metallic materials, and relates to a glass fiber, in particular to a continuous ultrafine glass fiber; the invention also relates to a method for centrifugally manufacturing the continuous ultrafine glass fiber. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. It can be divided into continuous fiber, fixed length fiber and glass wool according to its shape and length. Continuous fiber is also called textile fiber, whose length is theoretically infinite. After textile processing, it can be made into glass yarn, rope, cloth, belt, roving, chopped strand and other products; the length of fixed-length fiber is generally 300 ~500mm; the length of glass wool is relatively short, generally less than 150mm, the fibers inside the glass wool are fluffy and interlaced, and there are a large number of tiny pores, which can be used for thermal insulation, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/00C03B37/04
Inventor 郭茂秦大江傅小菊
Owner 宣汉正原微玻纤有限公司
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