高铝砖
发布时间 2009-06-12 08:27:44
产品描述
高铝砖
High alumina
bricks
|
GB2988-87 |
|
一级高铝 |
二级高铝 |
三级高铝 |
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|
LZ-75 |
LZ-65 |
LZ-55 |
LZ-48 |
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|
Al2O3,≥ % |
75 |
65 |
55 |
48 |
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|
耐火度 Refractoriness,≥,℃ |
1790 |
1770 |
1750 |
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|
0.2Mpa 荷重软化开始温度 RUL, T0.6,℃≥,℃ |
1520 |
1500 |
1470 |
1420 |
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|
重烧线变化 |
1500℃×2h |
＋0.1 |
-0.4 |
-0.4 |
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|
1450℃×2h |
— |
— |
＋0.1 |
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|
显气孔率 Apparent porosity,≤ % |
23 |
22 |
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|
常温耐压强度 CCS,≥Mpa |
≥53.9 |
≥49.0 |
≥44 |
≥40 |
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