Electric-fused AZS (Al2O3-ZrO2-SiO2) brick with low-iron glass erosion resistance
A technology of low-iron glass and electrofusion, which is applied in the field of refractory materials, can solve problems such as no corresponding solutions have been proposed, and achieve the effect of large phase transition stress
Active Publication Date: 2018-06-29
淄博艾杰旭刚玉材料有限公司
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Problems solved by technology
However, the above schemes are all measures aimed at the erosion of brick joints, and there is no corresponding solution for how to improve the overall erosion of fused AZS bricks
Method used
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Embodiment 26
[0043] Examples 26, 28-31 show that Ta 2 O 5 When ≥1.5wt.%, the crack rate rises sharply, and when the content is 1wt.%, all indexes are in the best range.
[0044] Examples 33-42 show that the addition of SrO has a significant effect on enhancing the corrosion resistance and reducing the exudation of the glass phase at 1500°C, but the cracking rate increases sharply when the addition amount is above 3wt.%.
[0045] Analysis shows that the product of the present invention is particularly suitable for low-iron glass furnaces, such as common photovoltaic rolled glass furnaces, ultra-white glass furnaces, etc.; of course, it will have a longer service life when used in ordinary float glass furnaces.
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The invention relates to an electric-fused AZS (Al2O3-ZrO2-SiO2) brick with low-iron glass erosion resistance, and belongs to the field of refractory materials. The electric-fused AZS brick is prepared from the following substances in percent by mass: 31-45% of ZrO2, 9-14% of SiO2, 0.6-1.9% of Na2O, 0.5-16.5% of doped oxide and the balance of aluminium oxide, wherein the doped oxide is one or moreof Y2O3, Ta2O5, Nb2O5 or SrO. The prepared electric-fused AZS brick has good erosion resistance, lower porosity and the higher capability of bearing baddeleyite phase-change stress, and compared withthe common AZS brick, the erosion resistance is improved by 30% or more, and the glass-phase leakage rate is reduced by 30%.
Description
Technical field [0001] The invention relates to an electric fusion AZS brick resistant to corrosion by low-iron glass, belonging to the field of refractory materials. Background technique [0002] Low-iron glass has a wide range of applications in high-end buildings, furniture and solar energy technology. Therefore, it has been rapidly developed in recent years. The furnace for producing this variety of glass has basically the same structure as ordinary float glass furnaces. Generally, the erosion of the fused AZS pool wall tiles in the float glass furnace is the most serious at the liquid level line, and the erosion below the liquid level line gradually weakens. However, in the low iron glass furnace, the glass is low in iron content and the glass is liquid. The heat is strong, and the temperature difference between the upper and lower sides of the molten glass is small. The erosion of the pool wall bricks is integral, and the erosion of the upper and lower ends of the pool wall...
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IPC IPC(8): C03B5/425C04B35/66C04B35/48
CPCC03B5/425C04B35/481C04B35/66C04B2235/3201C04B2235/3213C04B2235/3217C04B2235/3225C04B2235/3251C04B2235/602C04B2235/9669
Inventor 张同剑商宜农李笃斌李志军段文峰周庆忠金瑞琦
Owner 淄博艾杰旭刚玉材料有限公司
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