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Method for producing alkali-free glass fiber by albite serving as fluxible clarifying agent

A technology of alkali-free glass fiber and albite, applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problems of affecting the uniformity of batch materials, mixed powder transportation, high price, easy moisture absorption and agglomeration, etc., to reduce industrial Production difficulty, small crystallization ability, and the effect of reducing production difficulty

Active Publication Date: 2013-11-27
NEIJIANG HUAYUAN ELECTRONICS MATERIALS
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  • Abstract
  • Description
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Problems solved by technology

[0003] At present, the glass fiber industry in my country mainly adopts the pool kiln wire drawing production process. When this process is used to produce alkali-free glass fiber, the main flux raw material is Glauber's salt (or soda ash). Because of its raw material characteristics, it has strong water absorption, and it is easy to absorb moisture and agglomerate during use, which affects the uniformity of the batch material and the transportation of the mixed powder, and the price is also high. At the same time, the melting temperature is required to be very stable. If the melting The temperature is unstable, and Glauber's salt is prone to produce "salt water" during use, which will affect the quality of melting

Method used

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  • Method for producing alkali-free glass fiber by albite serving as fluxible clarifying agent

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Experimental program
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Effect test

Embodiment 1

[0029] To produce 100kg of alkali-free glass fiber, the amount of raw materials required is: kaolin: 10kg, of which: SiO 2 ≥44.0%, Al 2 o 3 ≥37.5%, Fe 2 o 3 ≤0.6%, H 2 O≤1%; pyrophyllite: 45kg, of which: SiO 2 ≥72%, Al 2 o 3 ≥16.5%, Fe 2 o 3 ≤0.45%, H 2 O≤1%; quicklime: 20㎏, of which: CaO≥85%, Fe 2 o 3 ≤0.15%, MgO≤3%, H 2 O≤1%; Dolomite: 9.5㎏, of which CaO≥30%, Fe 2 o 3 ≤0.15%, MgO≤21.0%, H 2 O≤1%; Colemanite: 8㎏, of which CaO≥27.5%, Fe 2 o 3 ≤0.10%, B 2 o 3 ≥38.0%, SiO 2 ≤6.5%, H 2 O≤1%; leucoporite: 20kg, of which SiO 2 ≥80.0%, Al 2 o 3 ≥10.0%, Fe 2 o 3 ≤0.50%, H 2 O≤1%; Fluorite: 3㎏, of which: CaF 2 ≥90%, H 2 O≤1%; Albite: 3.5㎏, of which: SiO 2 ≥69.0%, Al 2 o 3 ≥17.0%, Fe 2 o 3 ≤0.35%, Na 2O≥8.5%, H 2 O≤1%; the above percentages are mass percentages.

[0030] Before weighing, the composition content of CaO in quicklime should be detected every day, and the lime ratio should be adjusted according to the content of its composition.

[0031...

Embodiment 2

[0044] To produce 100kg of alkali-free glass fiber, the amount of raw materials required is: kaolin: 15kg, of which: SiO 2 ≥44.0%, Al 2 o 3 ≥37.5%, Fe 2 o 3 ≤0.6%, H 2 O≤1%; pyrophyllite: 36㎏, of which: SiO 2 ≥72%, Al 2 o 3 ≥16.5%, Fe 2 o 3 ≤0.45%, H 2 O≤1%; quicklime: 22㎏, of which: CaO≥85%, Fe 2 o 3 ≤0.15%, MgO≤3%, H 2 O≤1%; dolomite: 10kg, of which CaO≥30%, Fe 2 o 3 ≤0.15%, MgO≤21.0%, H 2 O≤1%; Colemanite: 8㎏, of which CaO≥27.5%, Fe 2 o 3 ≤0.10%, B 2 o 3 ≥38.0%, SiO 2 ≤6.5%, H 2 O≤1%; leucoporite: 25kg, of which SiO 2 ≥80.0%, Al 2 o 3 ≥10.0%, Fe 2 o 3 ≤0.50%, H 2 O≤1%; Fluorite: 2.6㎏, of which: CaF 2 ≥90%, H 2 O≤1%; Albite: 2.5㎏, of which: SiO 2 ≥69.0%, Al 2 o 3 ≥17.0%, Fe 2 o 3 ≤0.35%, Na 2 O≥8.5%, H 2 O≤1%; the above percentages are mass percentages.

[0045] Before weighing, the composition content of CaO in quicklime should be detected every day, and the lime ratio should be adjusted according to the content of its composition.

[00...

Embodiment 3

[0059] To produce 100kg of alkali-free glass fiber, the amount of raw materials required is: kaolin: 9.2kg, of which: SiO 2 ≥44.0%, Al 2 o 3 ≥37.5%, Fe 2 o 3 ≤0.6%, H 2 O≤1%; pyrophyllite: 46.4㎏, of which: SiO 2 ≥72.0%, Al 2 o 3 ≥16.5%, Fe 2 o 3 ≤0.45%, H 2 O≤1%; quicklime: 19.0㎏, of which: CaO≥85.0%, Fe 2 o 3 ≤0.15%, MgO≤3%, H 2 O≤1%; Dolomite: 8.2㎏, of which CaO≥30%, Fe 2 o 3 ≤0.15%, MgO≤21.0%, H 2 O≤1%; Colemanite: 9.0㎏, of which CaO≥27.5%, Fe 2 o 3 ≤0.10%, B 2 o 3 ≥38.0%, SiO 2 ≤6.5%, H 2 O≤1%; leucoporite: 16.8㎏, of which SiO 2 ≥80%, Al 2 o 3 ≥10%, Fe 2 o 3 ≤0.50%, H 2 O≤1%; Fluorite: 2.7㎏, of which: CaF 2 ≥90.0%, H 2 O≤1%; Albite: 2.5㎏, of which: SiO 2 ≥69.0%, Al 2 o 3 ≥17.0%, Fe 2 o 3 ≤0.35%, Na 2 O≥8.5%, H 2 O≤1%; the above percentages are mass percentages.

[0060] Before weighing, the composition content of CaO in quicklime should be detected every day, and the lime ratio should be adjusted according to the content of its compositi...

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Abstract

The invention discloses a method for producing an alkali-free glass fiber by albite serving as a fluxible clarifying agent. The method comprises the following steps of: (a) weighing; (b) burdening; (c) melting; (d) accessing; (e) wire-drawing; (f) drying; and (g) subsequent working. The alkali-free glass fiber comprises the following components in parts by mass: 60 to 140 parts of kaolin, 280 to 450 parts of pyrophyllite, 150 to 200 parts of calcined lime, 60 to 90 parts of dolomite, 60 to 90 parts of colemanite, 130 to 230 parts of quartzitic sandstone, 15 to 30 parts of fluorite and 15 to 30 parts of albite, and the sum of the proportions of the components is 1,000. According to the method, the albite is used as a fluxible clarifying agent, so that crystals are prevented from being separated out and damaging a product during forming of the glass fiber. The albite can be used for reducing the fire resistance of the kaolin, so that the industrial production difficulty is reduced. According to the method for producing the alkali-free glass fiber, the cost and the production difficulty are reduced, the stability of melting temperature and the quality of the product are improved, and relatively high economic benefit is realized.

Description

technical field [0001] The invention belongs to the technical field of non-alkali glass fiber, and in particular relates to a method for producing non-alkali glass fiber by using albite as a flux clarifying agent. Background technique [0002] E-glass fiber, R 2 O(K 2 O+Na 2 O) ≤ 0.8%, is a kind of aluminum borosilicate composition, chemical stability, electrical insulation performance, strength are very good. It is mainly used as electrical insulation material, reinforcing material of FRP and tire cord, and used in composite cable support. [0003] At present, the production of glass fiber industry in my country mainly adopts the pool kiln drawing production process. When this process is used to produce alkali-free glass fiber, the main flux raw material is Glauber's salt (or soda ash), and when Glauber's salt (or soda ash) is used as flux clarifier Because of its raw material characteristics, it has strong water absorption, and it is easy to absorb moisture and agglomer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C13/00C03C1/00C03B37/022
CPCC03C13/00C03C3/091
Inventor 刘钢刘术明陈锐邓贤朝吴远坤何斌朱铭
Owner NEIJIANG HUAYUAN ELECTRONICS MATERIALS
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