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项 目 \ 牌 号
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粘 土 质
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高 铝 质
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N-1
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N-2a
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N3
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N-4
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LZ-85
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LZ-80
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LZ-75
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LZ-65
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LZ-55
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LZ-48
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| Al2O3 % |
≥42
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≥40
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≥40
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≥85 |
≥80 |
≥75 |
≥65 |
≥55 |
≥48 |
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| 耐火度 ℃R |
≥1750
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≥1730
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≥1690
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≥1700
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| 荷重软化温KD ℃ |
≥1400
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≥1350
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T2≥1450
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≥1300
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≥1550
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≥1530
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≥1520
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≥1500
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≥1470
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≥1450
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| 重烧线变化率 % |
1400℃×2h
+0.1~-0.4 |
1400℃×2h
+0.1~-0.5 |
1350℃×3h
+0.1~-0.5 |
1350℃×2h
+0.2~-0.5 |
1500℃×2h
+0.1~-0.4 |
1500℃×2h
+0.1~-0.4 |
1500℃×2h
+0.1~-0.4 |
1500℃×2h
+0.1~-0.4 |
1450℃×2h
+0.1~-0.4 |
1450℃×2h
+0.1~-0.4 |
| 显气孔率 % |
≤22
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≤24
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≤24
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≤24
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≤23
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≤22
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≤23
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≤23
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≤22
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≤22
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| 常温耐压强度 Mpa |
≥29.4
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≥24.5
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≥25
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≥20.0
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≥55
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≥55
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≥50
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≥45
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≥40
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≥35
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| 用 途 | 各种工业窑炉及热工设备 |
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