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REFRACTORY PATCHING

They are commonly installed into place by hand. Patching Refractories have been widely used for steel industry, chemical furnaces, boilers, nonferrous furnaces and the other high temperature furnaces. The storage of brick has become serious, and the expense of installed by labor much higher year by year. Judged from this trend, use of patching refractories will be expanded in the future.

\ 代號 Brand
特性質Properties
PL-70C PL-70 PL-70G PL-90 PL-90M PL-90P
最高使用溫度 (℃) 
Max. Service Temp.
1650 1650 1650 1800 1800 1800
施工需要量 (T/M3)
Quantity Required
2.65 2.65 2.65 2.95 2.95 2.95
體 密 度(g/cm3)
Bulk Density
110℃×24hrs
1500℃×3hrs
2.50
2.40 
2.50
2.40
2.50
2.40
2.90
2.75
2.90
2.70
2.90
2.65
耐壓強度 (kg/cm2)
Compressive Strength
110℃×24hrs
1500℃×3hrs
≧120
≧550 
≧120
≧550
≧120
≧550
≧150
≧550
≧150
≧550
≧150
≧550
再熱變形率 (%) 1500℃×3hrs
Permanent Linear Change
+1.2 +1.2 +1.6 +1.0 +1.2 +1.0
熱傳導率(kcal-m.hr.℃)
Thermal Conductivity
500℃
1000℃
1.15 1.15 1.15 1.32 1.30 1.30
粒 度 (%)
Grain Size
+1 mm
-1 mm
30∼40
60∼70
15∼25
75∼85
5∼10
90∼95
25∼40
60∼75
20∼30
70∼80
---
100
化學成份 (%)
Chemical Composition
Al2O3
SiO2
P2O5
70
25
3
70
25
3
70
25
3
90
5
3
90
5
3
90
5
3

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