HDD-1

HDDD-2

HDD-3

HDD-4

HDD-5

化學成分（%）

Chemical composition

SiO₂≥

98

96

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

冷態耐壓強度（Mpa)

Cold crushing strength

1300℃×3h

After firing at

15

15

10

10

25

顯氣孔率（％）

Ａpparent porosity

1300℃×3h

After firing at

26

26

25

25

23

燒後線變化率（％）

Linear changing after burnt

1300℃×3h

After firing at

0～+1.6

0～+1.2

0～+1.0

體積密度（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

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

振動或搗打Jolt or ramming

應用  Application

紫銅.黃銅

青銅 

copper  brassbronze     

紫銅.黃銅copper  brass

白銅cupronickel  

鋼鐵

steel

   鋁    

aluminium 

有色、黑色金屬熔煉爐Melting furance for nonferrous metals

適用於100KW以下感應電爐最佳

be the same with  100KW hereinafter inductance furnace

特點Characteristic

價廉 保溫 節電 不沾渣 快速乾燥 化學結合 耐侵蝕

Cost down Thernalinsulation Economy electricity Nostickresidue

 Fast drying Chemicalbonded Corrosion resistance