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A mildew-proof float glass

A float glass and anti-mildew technology, which is applied in the field of glass manufacturing, can solve the problems of decreased chemical stability of float glass and easy mildew of float glass, etc., and achieves improved chemical stability, improved scratch resistance, and low mold rate. Effect

Active Publication Date: 2018-09-21
TG ANHUI GLASS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, the greater the content of alkali metal oxides in the float glass, the more the silicon-oxygen structure network in the glass will be broken, which will reduce the chemical stability of the float glass, and the float glass will be more prone to mildew.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Mix quartz sand, aluminum oxide, potassium carbonate, sodium carbonate, calcium carbonate and magnesium oxide to form the basic raw material of silicate glass, then add 2.6 kg of modified antimony oxide powder and mix evenly to form float glass. , the amount of silicate glass basic raw material is converted and weighed according to the amount of glass oxide, and the amount of glass oxide is respectively (unit: kilogram): SiO 2 72.8, Al 2 o 3 0.7, K 2 O is 0.1, Na 2 O is 13, CaO is 7.7, and MgO is 3.3; the float glass batch is mixed evenly and sent to the float glass melting furnace, where it is melted at high temperature into a melt, and the melt is clarified and homogenized Flowing into the working pool, the molten liquid enters the forming tin bath from the launder in the working pool to form a strip-shaped continuous glass plate, which is cut into finished products after annealing and surface treatment; the melting temperature in the float glass melting furnace is...

Embodiment 2

[0026] Mix quartz sand, aluminum oxide, potassium carbonate, sodium carbonate, calcium carbonate and magnesium oxide to form the basic raw material of silicate glass, then add 3.1 kg of modified antimony oxide powder and mix evenly to form float glass. , the amount of silicate glass basic raw material is converted and weighed according to the amount of glass oxide, and the amount of glass oxide is respectively (unit: kilogram): SiO 2 73.6, Al 2 o 3 0.8, K 2 O is 0.2, Na 2 O is 13.6, CaO is 8.6, and MgO is 3.5; the float glass batch is mixed evenly and sent to the float glass melting furnace, where it is melted at high temperature into a melt, and the melt is clarified and homogenized Flowing into the working pool, the molten liquid enters the forming tin bath from the launder in the working pool to form a strip-shaped continuous glass plate, which is cut into finished products after annealing and surface treatment; the melting temperature in the float glass melting furnace ...

Embodiment 3

[0030] Mix quartz sand, aluminum oxide, potassium carbonate, sodium carbonate, calcium carbonate and magnesium oxide to form the basic raw material of silicate glass, then add 3.5 kg of modified antimony oxide powder and mix evenly to form float glass. , the amount of silicate glass basic raw material is converted and weighed according to the amount of glass oxide, and the amount of glass oxide is respectively (unit: kilogram): SiO 2 73.9, Al 2 o 3 0.9, K 2 O is 0.3, Na 2 O is 14, CaO is 9.8, and MgO is 3.8; the float glass batch is mixed evenly and sent to the float glass melting furnace, where it is melted at high temperature into a melt, and the melt is clarified and homogenized Flowing into the working pool, the molten liquid enters the forming tin bath from the launder in the working pool to form a strip-shaped continuous glass plate, which is cut into finished products after annealing and surface treatment; the melting temperature in the float glass melting furnace is...

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PUM

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Abstract

The invention relates to mildewproof float glass which comprises SiO2, Al2O3, K2O, Na2O, CaO, MgO, antimony oxide, chloride and sulfide. The mildewproof float glass is prepared by utilizing quartz sand, alumina, potassium carbonate, sodium carbonate, calcium carbonate, magnesium oxide and modified antimony oxide powder for fusion forming and annealing, using treatment gas composed of sulfur dioxide, chlorine dioxide and nitrogen to treat the surface and the cutting. Mildewing rate of the mildewproof float glass does not exceed 3.9%, microhardness is not lower than 655 MPa, and the defect that common float glass is prone to mildewing and prone to being scratched is improved.

Description

technical field [0001] The invention relates to a mildew-proof float glass, which belongs to the technical field of glass manufacturing. Background technique [0002] There are three types of flat glass in the world today: flat drawn, float, and rolled. Among them, float glass accounts for more than 90% of the current total glass production, and is the basic building material in the world's architectural glass. Founded in 1952, the float glass production process sets the world standard for high-quality glass production. [0003] Float glass is often corroded by water, acid, alkali, salt, gas and other chemical substances during production and use. When these substances come into contact with moisture in the atmosphere, they are easy to corrode the glass surface and make the glass Weathering phenomena such as rainbows, white spots or haze appear on the surface, we call it mildew. Once the float glass is moldy, it will directly affect its performance and processing performa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/11C03C21/00
CPCC03C3/11C03C21/007C03C2201/30
Inventor 林嘉宏
Owner TG ANHUI GLASS
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