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Thermal insulation refractory product |
Thermal insulation refractory product is used as heat insulation layer. And it is also used as kiln lining that is resistant to high temperature melt materials and corrosive gases. |
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Performance index |
Item |
Index |
NG-1.5 |
NG-1.3a |
NG-1.3b |
NG-1.0 |
NG-0.9 |
NG-0.8 |
NG-0.7 |
NG-0.6 |
NG-0.5 |
NG-0.4 |
Bulk density£¬g/cm3
No more than |
1.5 |
1.3 |
1.3 |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.5 |
0.4 |
Cold crushing strength£¬kgf/cm2
No less than |
60 |
45 |
40 |
30 |
25 |
25 |
20 |
15 |
12 |
10 |
Reheating linear change
No more than 2%(Testing temperature¡æ) |
1400 |
1400 |
1350 |
1350 |
1300 |
1250 |
1250 |
1200 |
1150 |
1150 |
Thermal conductivity coefficient **W/£¨m.k£©average temperature 350¡À25¡æ
No more than |
0.70 |
0.60 |
0.60 |
0.50 |
0.40 |
0.35 |
0.35 |
0.25 |
0.25 |
0.20 |
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High-alumina insulating brick |
Performance index |
Item |
Index |
LG-1.0 |
LG-0.9 |
LG-0.8 |
LG-0.7 |
LG-0.6 |
LG-0.5 |
LG-0.4 |
Al2O3£¬%
No less than |
48 |
48 |
48 |
48 |
48 |
48 |
48 |
Fe2O3 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
Bulk density£¬g/cm3
No more than |
1.0 |
0.9 |
0.8 |
0.7 |
0.6 |
0.5 |
0.4 |
Cold crushing strength£¬kgf/cm2
No less than |
40 |
35 |
30 |
25 |
20 |
15 |
8 |
Reheating linear change
No more than 2%(Testing temperature¡æ) |
1400 |
1400 |
1400 |
1350 |
1350 |
1250 |
1250 |
Thermal conductivity coefficient£¬W/£¨m.k£©£¨average temperature 350¡À25¡æ£©
No more than |
0.50 |
0.45 |
0.35 |
0.35 |
0.30 |
0.25 |
0.25 |
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Performance index |
Item |
Index |
GGR-1.00 |
GGR-1.10 |
GGR-1.15 |
GGR-1.20 |
SiO2£¬%
No less than |
91 |
91 |
91 |
91 |
Bulk density£¬g/cm3
No more than |
1.00 |
1.10 |
1.15 |
1.20 |
Cold crushing strength£¬MPa
No less than |
2.0 |
3.0 |
5.0 |
5.0 |
Reheating linear change£¬%
No more than |
1550¡æ£¬2h |
- |
- |
0.5 |
0.5 |
1450¡æ, 2h |
0.5 |
0.5 |
- |
- |
Thermal conductivity coefficient£¬W/£¨m.k£©£¨average temperature 350¡À25¡æ£©
No more than |
0.55 |
0.60 |
0.65 |
0.70 |
0.1MPa Refractoriness under load£¬¡æ No less than |
1400 |
1420 |
1500 |
1520 |
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Aluminosilicate refractory fibre |
Chemical component |
Component |
Content |
Al2O3+SiO2 |
No less than |
96 |
Al2O3 |
No less than |
45 |
Fe2O3 |
No more than |
1.2 |
K2O+Na2O |
No more than |
0.5 |
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Physical property |
Item |
Index |
Capacity £¬kg/m3 |
130 |
¡À1.5 |
160 |
190 |
220 |
Slag ball content£¬%£¨£¾0.25mm£© |
No more than |
5 |
Heating linear contractive£¬%1150¡æ£¬Heat insulation for 6 hours |
No more than |
4 |
Water content£¬% |
No more than |
0.5 |
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