CN108439811A - A kind of glass formula being suitable for producing glass fiber textile yarn - Google Patents

Abstract

The present invention relates to a kind of glass formula being suitable for producing glass fiber textile yarn, the glass formula is made of composition SiO2, Al2O3, CaO, MgO, K2O, Na2O, TiO2, Fe2O3, and the ratio that component accounts for Glass Design is as follows：(1) SiO2 contents 59.7 60.1%, (2) Al2O3 contents 12.85 19.15%, (3) CaO content 22.4 22.8%, (4) content of MgO 2.7 3.1%, (5) K2O+NaO contents 0.6 0.75%, (6) TiO2 contents 0.35 0.5%, (7) Fe2O3 contents 0.28 0.33%.The glass formula solves the problems, such as that existing glass fibre tensile strength is low and cannot be satisfied high-performance glass fiber textile yarn performance requirement.

Description

A kind of glass formula being suitable for producing glass fiber textile yarn

Technical field

The invention belongs to fiberglass glass formulation art, more particularly to a kind of glass formula of glass fiber textile yarn.

Background technology

Glass fibre is a kind of inorganic non-metallic material haveing excellent performance, and type is various, and advantage is good insulating, heat resistance By force, corrosion resistance is good, high mechanical strength, but the disadvantage is that property is crisp, wearability is poor.Glass fibre is typically used as in composite material Reinforcing material, electrically insulating material and heat-insulating material, the national economy every field such as circuit board.

The ratio that composition is respectively introduced in glass will directly affect the performance of glass fibre, to the manufacture of glass fibre to closing weight It wants, determines the performance of the transaction capabilities and fiber of fiber in the composite.Its main component be silica, aluminium oxide, Calcium oxide, magnesia, iron oxide, potassium oxide, sodium oxide molybdena, titanium oxide etc., rational oxide introduce ratio, glass fibre are made to have There are ideal physical property, mechanical property, the application performances such as electric property and acid-proof alkaline.

Invention content

The present invention relates to a kind of glass formulas being suitable for producing glass fiber textile yarn, and it is anti-to solve existing glass fibre Tensile strength low the problem of cannot be satisfied high-performance glass fiber textile yarn performance requirement.

In order to solve the above technical problems, the present invention adopts the following technical scheme that：

The glass formula is made of SiO2, Al2O3, CaO, MgO, K2O, Na2O, TiO2, Fe2O3, and each component accounts for glass It is as follows to be formulated volume ratio：

(1) SiO2 contents 57.7-60.1%

(2) Al2O3 contents 10.85-19.15%

(3) CaO content 20.4-22.8%

(4) content of MgO 2.0-3.1%

(5) K2O+NaO contents 0.6-0.75%

(6) TiO2 contents 0.35-0.5%

(7) Fe2O3 contents 0.28-0.33%

Preferably, the glass formula is made of SiO2, Al2O3, CaO, MgO, K2O, Na2O, TiO2, Fe2O3, each group Divide the volume ratio for accounting for glass formula as follows：

(1) SiO2 contents 59.7-60.1%

(2) Al2O3 contents 12.85-19.15%

(3) CaO content 22.4-22.8%

(4) content of MgO 2.7-3.1%

(5) K2O+NaO contents 0.6-0.75%

(6) TiO2 contents 0.35-0.5%

(7) Fe2O3 contents 0.28-0.33%

1256-1260 DEG C of Lg=3 glass viscosities temperature,

Domestic market glass fiber textile yarn tensile strength index request >=0.52N/tex, glass of the invention are assigned The good production status of glass fibre is given, product tensile strength is made to be promoted to >=0.6N/tex.

The mechanical strength of glass depends primarily on the composition ratio of each oxide in glass, and each oxide is in glass fibre Play the role of as follows：

(1)SiO2:The key component for forming glass makes glass have certain excellent performance, as transparency, machinery are strong Degree, chemical stability, thermal stability etc..The disadvantage is that fusing point is high, solution viscosity is big, cause fusing difficult, heat consumption is big, therefore produces glass Need to introduce other compositions when glass to improve the state of this respect.

(2)Al2O3：The tendency towards devitrification of glass is reduced, chemical stability and mechanical strength are improved, improves thermal stability, but Content can excessively improve the viscosity of glass, so that fusing and clarification is occurred difficult, increase tendency towards devitrification instead, glass is made to lack It falls into.

(3)CaO：The high temperature viscosity for reducing glass promotes the fusing and clarification of glass, temperature that can increase glass metal when reducing Viscosity, be conducive to glass fibre draws vehicle speed on silk.Defect is to increase the tendency towards devitrification of glass when content increase, is reduced The thermal stability of glass improves annealing temperature.

(4)MgO：Effect is similar to CaO, but increases the shortcomings that devitrification of glass is inclined to without CaO, therefore available suitable MgO replaces CaO, but the excessive diopside that will appear crystallizes, and improves annealing temperature, reduces the stability of glass.

(5)K2O+NaO：Good fluxing agent reduces viscosity of glass metal, promotes the fusing and clarification of glass metal, moreover it is possible to big It is big to reduce the tendency towards devitrification of glass, the disadvantage is that can reduce glass chemical stability and machinery it is slight.

(6)TiO2：Improve the anaclasis of glass and absorb it is imparted can, adjust the high temperature viscosity of glass, but with When Fe2O3 contents exceed certain proportion, the coloration of glass can be reduced.

(7)Fe2O3：Make glass coloration, reduces transparency, ultraviolet-transmitting performance, diathermancy and the mechanical strength of glass, make It is difficult at fusing clarification, it can excessively cause platinum bushing plate Poisoning Effect fiber job state.

Compared with prior art, the present invention integrates each oxide and plays the role of in glass, in glass to oxide Introducing ratio be adjusted, by glass SiO2+Al2O3 contents design account for glass assembly with glass part 72.55-73.25% it It is interior, make glass that there is stable mechanical strength and chemical stability, is also conducive to the melt-forming of glass, helps to improve glass fibers The intensity of dimension.

Specific implementation mode

Below by specific embodiment, the following further describes the technical solution of the present invention, but protection scope of the present invention It is without being limited thereto：The raw material that glass formula uses is：Pyrophyllite powder is purchased from Shandong glass group company；Calcium lime powder is purchased from middle letter Gai Ye companies；Dolomite dust is purchased from Linyi Jin Ou companies；Kaolin is purchased from Zibo Yuan Jia companies；Silica flour, it is prosperous purchased from Yinan Run Gui industry company；Lime stone is purchased from Surabaja Jin Hai companies；Blast-furnace cinder is purchased from Laigang group；Titanium dioxide, it is abundant emerging purchased from Jinan Company.Each material composition range is as follows：

Table 1

Preparation steps：

<1>According to：SiO2:59.9%, Al2O3:13.05%, Fe2O3:0.3%, CaO:22.6%, MgO:2.9%, Na2O+K2O:0.65%, TiO2:0.4% design carries out mixing match, such as table 2 to each raw material:

<2>Kiln is put into, the state of 1630 DEG C of space temperature, electric boosting power 1525KW/h is kept to be fired.

<3>Wire drawing temperature of glass liquid is kept for 1315-1320 DEG C, and drawing process is that drawing 200tex precursor, three are divided in 1600 holes two Divide and draws 136tex precursor, four points of drawing 100tex precursor

The testing result of above-mentioned implementation is as follows：

From above formula test case, we can therefrom find out, glass has good transparency and mechanical strength, Chromaticity index is below 3, and the viscosity temperature of glass also keeps stable, and tensile strength properties are obviously higher by market index.Above only It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair Under the premise of bright principle, several improvement can also be made, these improvement also should be regarded as protection scope of the present invention.

Claims (2)

1. a kind of be suitable for producing the glass formula of glass fiber textile yarn, which is characterized in that the glass formula by SiO2, Al2O3, CaO, MgO, K2O, Na2O, TiO2, Fe2O3 are formed, and it is as follows that each component accounts for glass formula content volume ratio：

(1) SiO2 contents 57.7-60.1%

(2) Al2O3 contents 10.85-19.15%

(3) CaO content 20.4-22.8%

(4) content of MgO 2.0-3.1%

(5) K2O+NaO contents 0.6-0.75%

(6) TiO2 contents 0.35-0.5%

(7) Fe2O3 contents 0.28-0.33%.

2. a kind of glass formula being suitable for producing glass fiber textile yarn as described in claim 1, which is characterized in that described Glass formula is made of SiO2, Al2O3, CaO, MgO, K2O, Na2O, TiO2, Fe2O3, and each component accounts for glass formula content volume Than as follows：

(1) SiO2 contents 59.7-60.1%

(2) Al2O3 contents 12.85-19.15%

(3) CaO content 22.4-22.8%

(4) content of MgO 2.7-3.1%

(5) K2O+NaO contents 0.6-0.75%

(6) TiO2 contents 0.35-0.5%

(7) Fe2O3 contents 0.28-0.33%.