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A technology of boron-magnesium-calcium powder and boron-magnesium-calcium, which is applied in the production formula field of E glass, can solve the problems of increased production cost, labor consumption, and increased production cost of the flue gas treatment process, so as to improve quality, improve quality, The effect of reducing the fluorine content
Active Publication Date: 2008-11-19
TAISHAN FIBERGLASS INC
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Generally, the application of natural fluorite requires manual beneficiation, which consumes manpower and increases production costs.
The cumbersome flue gas treatment process after using fluorite greatly increases the production cost
[0003] In the prior art, the method of using fluorite as a flux is relatively mature, and is widely used by various manufacturers, but the above-mentioned dis
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Embodiment 1
[0016] The raw material composition of E glass, each component by weight includes: silicon dioxide 53.9, aluminum oxide 13.9, boron trioxide 6.5, calcium oxide 22.77, magnesium oxide 0.50, iron oxide 0.40, titanium oxide 0.42, fluorine 1.0, Sodium oxide + potassium oxide 0.50.
[0017] Among them, the fluorine element is added in the form of fluorite, and fluorite is completely used as a co-solvent.
Embodiment 2
[0019] The raw material composition of E glass includes, in parts by weight, silicon dioxide 53.95, aluminum oxide 13.85, boron trioxide 6.55, calcium oxide 22.4, magnesium oxide 1.0, iron oxide 0.35, titanium oxide 0.4, fluorine 0.85, Sodium oxide + potassium oxide 0.53.
[0020] Among them, boron magnesium calcium powder is used to replace 20% of the fluorite consumption.
Embodiment 3
[0022] The composition of the raw materials of E glass includes, in parts by weight, silicon dioxide 53.85, aluminum oxide 13.95, boron trioxide 6.50, calcium oxide 21.86, magnesium oxide 1.5, iron oxide 0.42, titanium oxide 0.38, fluorine 0.65, Sodium oxide + potassium oxide 0.53.
[0023] Among them, boron magnesium calcium powder is used to replace 40% of the fluorite consumption.
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Abstract
The invention relates to a formula for producing E glass, which adopts boron magnesium calcium pulverized powder to replace fluorite as composite fluxing agent. The main compositions by weight portion of the technological formula are: 50 to 60 portions of silicon dioxide, 0 to 20 portions of aluminum sesquioxide, 2 to 7 portions of boron sesquioxide, 15 to 25 portions of calcium oxide, 0.2 to 4 portions of magnesia and 0.1 to 0.3 portion of fluorine, wherein, the content of sodium oxide and potassium oxide is less than 0.70. By adoption of the E glass manufacturing technique, the amount of the fluorite during the producing procedure is greatly reduced and the fluorine content in exhaust gas is greatly reduced, thereby the environmental pollution is reduced; simultaneously the content of fluorine element in the glass is reduced, the strength of glass fibers is improved and further the quality of the glass is improved; and the temperature in a furnace is reduced, the service life of thefurnace is increased and the expenditure is saved for enterprises.
Description
technical field [0001] The invention relates to a production formula of E glass, in particular to a production formula of using boron magnesium calcium powder instead of fluorite as a cosolvent to produce E glass. Background technique [0002] E glass is aluminum, boron, and silicate glass with an alkali metal oxide content of less than 1%. In the production process of traditional E glass, fluoride is an indispensable raw material as a flux. In the prior art, fluorite is usually used to introduce Fluoride as a flux. When using fluorite, the glass melting process in the kiln is a high-temperature reaction, and the use of glass liquid containing fluorine will cause serious erosion of the kiln pool wall, reducing the service life of the kiln and the safety of production. Moreover, a large amount of fluoride produced in the production process is discharged into the atmosphere with the flue gas, causing air pollution; when the rainy season comes, the fluorine element falls to th...
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