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Alkali-containing high strain-point glass and preparation method thereof

A high-strain, glass technology, applied in glass manufacturing equipment, glass furnace equipment, glass production, etc., can solve the problems of high melting temperature and poor light transmission performance of glass, and achieve low melting temperature, high product added value, Use a wide range of effects

Active Publication Date: 2017-09-01
CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent contains a large amount of intolerant ZrO 2 and Al 2 o 3 , the melting temperature is high, and the light transmission performance of the glass is poor

Method used

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  • Alkali-containing high strain-point glass and preparation method thereof

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preparation example Construction

[0033] A kind of preparation method of alkali-containing high strain point glass of the present invention, it comprises the following steps,

[0034] 1) First, according to the mass fraction of raw materials, accurately weigh 38.0-43.4% of quartz sand, 0.4-0.8% of boric acid, 0.3-0.6% of borax, 0.1-1.5% of silicon carbide, and 9.0-14.0% of gallium oxide, 10.0-13.0% lithium carbonate, 1.5-3.5% lithium nitrate, 2.1-3.5% sodium carbonate, 0.5-1.5% sodium chloride, 0.2-0.8% calcium carbonate, 1.5-2.5% calcium phosphate, 4.5 ~6.5% basic magnesium carbonate, 0.8~1.5% strontium carbonate, 0.3~4.5% beryllium oxide, 0.16~0.5% tin chloride, 13.0~17.5% cullet;

[0035] 2) Then, put the weighed raw materials into the mixer in turn, and mix until the uniformity is greater than 98% to form a batch;

[0036] 3) Then, add half of the batch material into the platinum crucible that has been heated to 1450°C; then, heat up to 1550-1600°C through 15-30min, and keep it warm for 30min, then add th...

Embodiment 1

[0046] 1) First, according to the mass fraction of raw materials, accurately weigh 41.5% of quartz sand, 0.67% of boric acid, 0.51% of borax, 0.8% of silicon carbide, 11.2% of gallium oxide, 10.0% of lithium carbonate, and 2.95% of nitric acid Lithium, 2.66% sodium carbonate, 0.67% sodium chloride, 0.32% calcium carbonate, 1.89% calcium phosphate, 5.14% basic magnesium carbonate, 1.01% strontium carbonate, 4.5% beryllium oxide, 0.19% Tin chloride, 15.99% cullet;

[0047] 2) Then, put the weighed raw materials into the mixer in turn, and mix until the uniformity is greater than 98% to form a batch;

[0048] 3) Then, add half of the batch material into the platinum crucible that has been heated to 1450°C; then, raise the temperature to 1600°C after 30 minutes and keep it warm for 30 minutes, then add the remaining batch materials into the platinum crucible, and heat it to 1600°C after 30 minutes ℃, after holding for 360 minutes, the temperature of the furnace was lowered from 1...

Embodiment 2

[0055] 1) First, according to the mass fraction of raw materials, accurately weigh 38% of quartz sand, 0.8% of boric acid, 0.3% of borax, 0.1% of silicon carbide, 14.0% of gallium oxide, 12.7% of lithium carbonate, and 3.5% of nitric acid Lithium, 2.1% sodium carbonate, 1.5% sodium chloride, 0.2% calcium carbonate, 2.5% calcium phosphate, 4.5% basic magnesium carbonate, 1.5% strontium carbonate, 0.3% beryllium oxide, 0.5% Tin chloride, 17.5% cullet;

[0056] 2) Then, put the weighed raw materials into the mixer in turn, and mix until the uniformity is greater than 98% to form a batch;

[0057] 3) Then, add half of the batch material into the platinum crucible that has been heated to 1450°C; then, heat up to 1550°C after 15 minutes and keep it warm for 30 minutes, then add the rest of the batch material into the platinum crucible, and heat it up to 1550°C through 15 minutes ℃, after holding for 240 minutes, the furnace temperature was lowered from 1550 ℃ to 1420 ℃ in 30 minute...

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Abstract

The invention relates to alkali-containing high strain-point glass and a preparation method thereof. Under the condition of meeting ion exchange chemical tempering, the glass is high in strain point temperature and wide in application range. Under the condition of satisfying properties including glass light transmittance rate, electrical resistivity, expansion coefficient, mechanical strength and the like, the glass melting and clarification temperature is lower than that in other methods by 80-140 DEG C, and the melting efficiency is improved by about 5 percent or more. Meanwhile, the alkali-containing high strain-point glass can also prevent a glass accident caused by glass quality variation, broken glass use and the like from occurring. The glass provided by the invention is low in melting temperature, energy consumption and cost and high in production efficiency, saves energy, is environmentally friendly, is suitable for mass production with low cost and is high in product added value; by being capable of being melted at lower melting temperature, is high in preparation strain point, wide in use range of broken glass, large in usage amount, short in melting time and suitable for chemically strengthened sheet glass.

Description

technical field [0001] The invention relates to a method for preparing high strain point glass, in particular to an alkali-containing high strain point glass and a preparation method thereof. Background technique [0002] With the rapid popularization of electronic products such as mobile phones, tablet computers, and PDAs, the demand for high-performance display materials is also increasing. As a terminal for information display, monitors play a very important role in the construction of an information society. Displays currently appearing mainly include TFT-LCD (Thin Film Transistor-Liquid Crystal Display), PDP (Plasma Display Panel) and OLED. The LTPS-TFT-LCD display currently occupies the largest market share. [0003] Low temperature polysilicon technology LTPS (Low Temperature Poly-silicon) was originally a technology developed by Japanese and North American technology companies in order to reduce the energy consumption of the Note-PC display and make the Note-PC app...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/00C03C6/04C03C6/02C03B5/235C03B19/02C03B25/00
CPCC03B5/235C03B19/02C03B25/00C03C1/002C03C4/00Y02P40/50
Inventor 刘仲军杨国洪王答成兰静周杨
Owner CAIHONG GRP SHAOYANG SPECIAL GLASS CO LTD
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