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高铝砖、粘土砖
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| 其它工业炉用耐火材料 |
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牌号
项目 |
高铝砖 |
粘土砖 |
|
LZ-75 |
LZ-65 |
LZ-55 |
N-1 |
N-2a |
N-2b |
N-3a |
N-3b |
N-4 |
N-5 |
N-6 |
|
AL2O3%不小于 |
75 |
65 |
55 |
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耐火度℃不低于 |
1790 |
1790 |
1770 |
1750 |
1730 |
1730 |
171 |
01710 |
1690 |
1670 |
1580 |
|
0.2MPa荷重软化开始温度RUL℃不低于 |
1520 |
1500 |
1470 |
1400 |
1350 |
|
1320 |
|
1300 |
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|
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重烧线变化PLC% |
1500℃，2h |
+0.1
-0.4 |
+0.1
-0.4 |
+0.1
-0.4 |
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1400℃,2h |
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+0.1
-0.4 |
+0.1
-0.5 |
+0.2
-0.5 |
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1350℃,2h |
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|
+0.2
-0.5 |
+0.2
-0.5 |
+0.2
-0.5 |
+0.2
-0.5 |
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显气孔率AP%不大于 |
23 |
23 |
22 |
22 |
24 |
26 |
24 |
26 |
24 |
26 |
28 |
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常温耐压强度CCS MPa不小于 |
53.9 |
49.0 |
44.1 |
30.0 |
25.0 |
20.0 |
20.0 |
15.0 |
20.0 |
15.0 |
15.0 |
全套浇钢砖
|
一般高铝砖
|
粘土砖
|
定型耐火砖
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低蠕变热风炉砖
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