hdd-1

hdd-2

hdd-3

hdd-4

hdd-5

化学成分（%）

chemical composition

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 crushing strength

1300℃×3h

after firing at

15

15

10

10

25

显气孔率（％

ａpparent porosity

1300℃×3h

after firing at

26

26

25

25

23

烧后线变化率（％）

linear changing after burnt

1300℃×3h

after firing at

0～+1.6

0～+1.2

0～+1.0

体积密度（g/cm³）

bulk density

1300℃×3h

after firing at

2.0

2.0

2.1

2.1

2.2

耐火度(℃)refractoriness

1750

1750

1750

1750

—

最大集料粒度(mm)

max. grain size of aggregate

5

4.5

4.5

4.2

4.2

施工用量(kg/m³)amount for construction

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

copper brassbronze

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以下感应电炉最佳

be the same with 100kw 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 down thernalinsulation economy electricity nostickresidue

fast drying chemicalbonded corrosion resistance