Production method of superfine glass microfibers

A technology of ultra-fine glass and production methods, applied in glass manufacturing equipment, manufacturing tools, etc., can solve problems such as poor fiber diameter uniformity, difficulty in meeting high-quality and high-performance microfiber glass wool, and insufficient tensile strength

Inactive Publication Date: 2020-10-20
BENGBU RONGQIANG COMPRESSOR MFG CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fiber diameter uniformity produced by the flame method is poor and there are many slag balls, which is difficult to meet the requirements of high-quality and high-performance microfiber glass wool
The microfiber glass wool produced by centrifugal method has less slag balls and relatively uniform fiber diameter, but there are also problems such as insufficient tensile strength, and it is urgent to improve its production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A production method of ultrafine glass microfibers, comprising the following steps:

[0023] S1. Weigh the raw materials. The ratio of raw materials is: quartz sand 51.6, feldspar powder 10.54, borax 8.04, dolomite powder 9.71, calcite powder 2.77, sodium carbonate 13.315, sodium nitrate 2.491, fluorite powder 1.1, potassium carbonate 0.195, clarifying agent 0.222;

[0024] S2. First irradiate quartz sand, feldspar powder, dolomite powder, calcite powder and fluorite powder with ultraviolet rays with a wavelength of 270nm for 1.5h, and then ball mill them for 8h at a speed of 250r / min and a ball-to-material ratio of 20:1. , to obtain the pretreatment mixture;

[0025] S3, mixing the pretreatment mixture with borax, sodium carbonate, sodium nitrate, potassium carbonate and clarifying agent evenly to obtain a batch;

[0026] S4. Melting the batch material, wherein the melting temperature is 1440°C, and the wind pressure of the kiln used for melting is 20kPa, to obtain mo...

Embodiment 2

[0029] A production method of ultrafine glass microfibers, comprising the following steps:

[0030] S1. Weigh the raw materials. The ratio of raw materials is: quartz sand 51, feldspar powder 10, borax 8, dolomite powder 9.5, calcite powder 2.6, sodium carbonate 13, sodium nitrate 2.4, fluorite powder 1, potassium carbonate 0.15, clarifying agent 0.2;

[0031] S2. First irradiate quartz sand, feldspar powder, dolomite powder, calcite powder and fluorite powder with ultraviolet rays with a wavelength of 200nm for 0.5h, and then ball mill them for 6h at a speed of 200r / min and a ball-to-material ratio of 15:1. , to obtain the pretreatment mixture;

[0032] S3, mixing the pretreatment mixture with borax, sodium carbonate, sodium nitrate, potassium carbonate and clarifying agent evenly to obtain a batch;

[0033] S4. Melting the batch material, wherein the melting temperature is 1420°C, and the wind pressure of the kiln used for melting is 15kPa, to obtain molten glass;

[0034]...

Embodiment 3

[0036] A production method of ultrafine glass microfibers, comprising the following steps:

[0037] S1. Weigh the raw materials. The ratio of the raw materials is: 52% of quartz sand, 11% of feldspar powder, 8.2% of borax, 10% of dolomite powder, 2.9% of calcite powder, 13.5% of sodium carbonate, 2.6% of sodium nitrate, 1.2% of fluorite powder, 0.25% of potassium carbonate, and 0.3% of clarifying agent;

[0038] S2. First irradiate quartz sand, feldspar powder, dolomite powder, calcite powder and fluorite powder with ultraviolet rays with a wavelength of 300nm for 3 hours, and then ball mill them for 10 hours at a speed of 300r / min and a ball-to-material ratio of 25:1 to obtain pretreatment mixture;

[0039] S3, mixing the pretreatment mixture with borax, sodium carbonate, sodium nitrate, potassium carbonate and clarifying agent evenly to obtain a batch;

[0040] S4. Melting the batch material, wherein the melting temperature is 1450° C., and the wind pressure of the kiln use...

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Abstract

The invention discloses a production method of superfine glass microfibers. The production method comprises the following steps: weighing raw materials, preprocessing quartz sand, feldspar powder, dolomite powder, calcite powder and fluorite powder; uniformly mixing the raw materials with borax, sodium carbonate, sodium nitrate, potassium carbonate and a clarifying agent to obtain a batch, meltingthe batch to obtain molten glass, feeding the molten glass into a centrifugal fiber forming machine, throwing out the molten glass through a centrifugal head of the centrifugal fiber forming machine,and forming ultrafine glass microfibers under the action of blowing airflow. According to the invention, the tensile strength of the glass microfibers can be effectively improved, the produced microfiber glass has the advantages of less slag balls and uniform fiber diameter, and the quality of microfiber glass wool is improved.

Description

technical field [0001] The invention relates to the technical field of glass microfiber manufacturing, in particular to a production method of ultrafine glass microfibers. Background technique [0002] Microfiber glass wool refers to glass wool with an average fiber diameter of less than 3 μm. It has the advantages of large specific surface area, good chemical stability, and high service temperature. It is widely used in heat insulation materials, sound-absorbing materials and other fields. With the continuous improvement of the economic level, the market demand for microfiber glass wool is increasing. At present, the main methods of producing microfiber glass wool are flame method and centrifugation method. The fiber diameter uniformity produced by the flame method is poor and there are many slag balls, which is difficult to meet the requirements of high-quality and high-performance microfiber glass wool. The microfiber glass wool produced by centrifugal method has less s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/00C03C6/06C03C6/04C03C6/02C03C1/00C03B37/04C03B37/06C03C1/02C03B1/00
CPCC03C13/00C03C1/00C03C1/004C03B37/06C03B37/04C03C1/02C03B1/00
Inventor 王喜才
Owner BENGBU RONGQIANG COMPRESSOR MFG CO LTD
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