HDD-1

HDD-2

HDD-3

HDD-4

HDD-5

化学成分（%）

Chemical composition

SiO₂≥

98

97

96

96

96

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

25

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

1780

1780

1780

1780

—

最大集料粒度(mm)

Max. grain size of aggregate

5

4.5

4.5

5

4.2

施工用量(kg/m³)Amount for construction

2300

2300

2300

2300

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