hdd-1
hdd-2
hdd-3
hdd-4
hdd-5
化学成分（%）
chemicalcomposition
sio2≥
98
98
96
96
90
al2o3≤
0.7
0.6
0.6
0.5
0.4
fe2o3≤
0.5
0.5
0.4
0.4
0.8
冷态耐压强度（mpa)
cold crushingstrength
1300℃×3h
after firingat
15
15
10
10
25
显气孔率（％）
apparent porosity
1300℃×3h
after firingat
26
26
25
25
23
烧后线变化率（％）
linear changing afterburnt
1300℃×3h
after firingat
0～+1.6
0～+1.2
0～+1.0
体积密度（g/cm3）
bulkdensity
1300℃×3h
after firingat
2.0
2.0
2.1
2.1
2.2
耐火度(℃)refractoriness
1750
1750
1750
1750
—
zui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
2300
2300
2300
2400
2400
施工方式mathod of construction
振动或捣打jolt or ramming
应用 application
紫铜.黄铜
青铜
copperbrassbronze
紫铜.黄铜copper brass
白铜cupronickel
钢铁
steel
铝
aluminium
有色金属熔炼炉melting furance for nonferrous metals
适用于100kw以下感应电炉
be the same with100kw hereinafter 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
cost downthernalinsulation economy electricity nostickresidue
fast dryingchemicalbonded corrosion resistance