性能properey
牌号brand
fggd-6
fggd-5
fggd-3
fggd-2
fggd-1
化学成分（%）
chemicalcomposition
sio2≥
90
91
91
92
92
al2o3≤
0.5
0.5
0.5
0.5
0.55
sic≥
7
6
5
5
4
冷态耐压强度（mpa)
cold crushingstrength
1250℃×3h
after firingat
15
15
12
12
10
烧后显气孔率（％）
apparent porosityafter burnt
1250℃×3h
after firingat
23
24
24
24
24
烧后线变化率（％）
linear changing afterburnt
1250℃×3h
after firingat
-0.5～+0.7
-0.3～+0.9
体积密度（g/cm3）
bulkdensity
1250℃×3h
after firingat
2.3
2.25
2.25
2.2
2.2
耐火度(℃)refractoriness≥
1790
1790
1790
1800
1800
大集料粒度(mm)
max. grain size ofaggregate
5
4.5
4.5
4.2
4.2
施工用量(kg/m3)amount forconstruction
2450
2450
2450
2450
2400
施工方式method of construction
振动或捣打jolt or ramming
应用 application
有色金属熔炼炉melting furnace for nonferrous metals
适用于150kw以上感应电炉
be the same with150kw hereinbefore inductance furnace
特点characteristic
价廉保温节电不沾渣快速干燥化学结合耐侵蚀
抗渗透
cost down heatpreservationeconomy electricity nostickslag
fast drying chemicalbonded corrosion resistance
interfusionresistance