采用電熔法合成原料，制品具有較高的耐火度及機械強度，較低的熱膨脹系數(shù)，良好的抗渣性能等優(yōu)點，可廣泛應(yīng)用于磁性行業(yè)電窯推板磚、窯具、爐襯、玻璃窯爐、廢熱鍋爐等各種熱工設(shè)備。
Using the electrocast raw material,the product has such advantages as high refractoriness and mechanical intensity ,small coefficient of heat-espansion ,good slags-resistance,It is used widely in the pushing board in electric kiln of the magnetic material trade,tools of kiln ,the lining of the furnace and all kinds of devices of heat industy.
指標(biāo) / 品種 | 鉻剛玉質(zhì) | 鋯莫來石質(zhì) | 鋯剛玉質(zhì) | 碳化硅 |
化學(xué)
成份
% | Al2O3 | ＞ 70 | ＞ 60 | ＞ 60 | ＞ 10 |
SiO2 | ＜ 23 | ＜ 25 | ＜ 10 | 10 |
SiC | | | | |
ZrO2 | | 10 | 10 | |
Cr2O3 | ＞ 0.5 | | | |
物理
性能 | 耐火度℃ | ＞ 1790 | ＞ 1750 | ＞ 1750 | ＞ 1700 |
荷重軟化溫度℃ 0.2 Mpa | 1670 | 1650 | 1690 | 1500 |
顯氣孔率 % | 20-22 | 20-22 | 20-22 | 20-22 |
體積密度(g/cm3) | ＞ 2.5 | 2.6 | 3.0 | 2.4 |
常溫耐壓強度Mpa | 60 | 70 | 60 | 50 |
重?zé)�變化 % | 1500 ℃× 3h | 1500 ℃× 3h | 1500 ℃× 3h | 1400 ℃× 3h |
± 0.15 | ± 0.15 | ± 0.15 | ± 0.15 |
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