轻质砖/Lightweight brick
轻质砖/Lightweight brick
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轻质粘土隔热耐火砖 |
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项目 |
指 标 |
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NG-1.5 |
NG-1.3 |
NG-1.0 |
NG-0.9 |
NG-0.8 |
NG-0.7 |
NG-0.6 |
NG-0.5 |
NG-0.4 |
|
|
体积密度g/cm3 |
1.5 |
1.3 |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.5 |
0.4 |
|
常温耐压强度 MPa |
6 |
4.5 |
3.0 |
2.5 |
2.5 |
2.0 |
1.5 |
1.2 |
1.0 |
|
重烧线变化 x12h不大于2% |
1400 |
1400 |
1350 |
1300 |
1250 |
1250 |
1200 |
1150 |
1150 |
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导热系数(350±25℃)不大于 |
0.7 |
0.6 |
0.5 |
0.4 |
0.35 |
0.35 |
0.25 |
0.25 |
0.2 |
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轻质高铝隔热耐火砖 |
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项目 |
指标 |
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LG-1.0 |
LG-0.9 |
LG-0.8 |
LG-0.7 |
LG-0.6 |
LG-0.5 |
LG-0.4 |
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Al2O3 |
不小于48% |
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Fe2O3 |
不大于 2% |
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体积密度g/cm3不大于 |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.5 |
0.4 |
|
耐压强度MPa不小于 |
4 |
3.5 |
3.0 |
2.5 |
2.0 |
1.5 |
0.8 |
|
重烧线变化x12h 不大于 1% |
1400 |
1400 |
1400 |
1350 |
1350 |
1250 |
1250 |
|
导热系数w/m.k(350±25℃) 不大于 |
0.5 |
0.45 |
0.35 |
0.35 |
0.3 |
0.25 |
0.2 |
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轻质漂珠砖理化指标 |
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|
项目 |
指 标 |
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耐火度 ℃ |
≥1650 |
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体积密度 g/cm3 |
≤1.0 |
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耐压强度 MPa |
≥10 |
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重烧线变化 % 1250℃X12h |
≤2 |
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导热系数 W/m.k 350±25℃ |
≤0.5 |
轻质砖/Lightweight brick
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Lightweight clay insulated firebrick |
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Item |
Index |
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NG-1.5 |
NG-1.3 |
NG-1.0 |
NG-0.9 |
NG-0.8 |
NG-0.7 |
NG-0.6 |
NG-0.5 |
NG-0.4 |
|
|
Bulk densityg/cm3 |
1.5 |
1.3 |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.5 |
0.4 |
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Compressive strength at room temperature MPa |
6 |
4.5 |
3.0 |
2.5 |
2.5 |
2.0 |
1.5 |
1.2 |
1.0 |
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Heavy burn line change x12hNot more than 2% |
1400 |
1400 |
1350 |
1300 |
1250 |
1250 |
1200 |
1150 |
1150 |
|
Thermal conductivity(350±25℃)Not more than |
0.7 |
0.6 |
0.5 |
0.4 |
0.35 |
0.35 |
0.25 |
0.25 |
0.2 |
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Lightweight high aluminum heat insulating firebrick |
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Item |
Index |
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LG-1.0 |
LG-0.9 |
LG-0.8 |
LG-0.7 |
LG-0.6 |
LG-0.5 |
LG-0.4 |
|
|
Al2O3 |
No less than48% |
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|
Fe2O3 |
Not more than 2% |
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Bulk densityg/cm3Not more than |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.5 |
0.4 |
|
Compressive strengthMPaNo less than |
4 |
3.5 |
3.0 |
2.5 |
2.0 |
1.5 |
0.8 |
|
Heavy burn line changex12h Not more than 1% |
1400 |
1400 |
1400 |
1350 |
1350 |
1250 |
1250 |
|
Thermal conductivityw/m.k(350±25℃) Not more than |
0.5 |
0.45 |
0.35 |
0.35 |
0.3 |
0.25 |
0.2 |
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Physical and chemical index of lightweight bleached bead brick |
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|
Item |
Index |
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Refractoriness ℃ |
≥1650 |
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Bulk density g/cm3 |
≤1.0 |
|
Compressive strength MPa |
≥10 |
|
Heavy burn line change % 1250℃X12h |
≤2 |
|
Thermal conductivity W/m.k 350±25℃ |
≤0.5 |
