铝镁复合捣打料中频炉捣打料耐火材料

牌号brand

性能properey

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化学成分（%）

chemical composition

al2o3≥

84

75

80

60

mgo≥

13

15

12

28

sic≥

2

9.8

7.7

10

fe2o3

0.05

0.1

0.1

0.1

sio2

0.05

0.05

0.1

0.1

冷态耐压强度（mpa）

cold crushing strength

1250℃×3h

after firing at

10

10

10

8

显气孔率（%）

apparent porosity

1250℃×3h

after firing at

24

25

24

25

烧后线变化率（%）

linear changing after burnt

1250℃×3h

after firing at

-0.3～+0.8

-0.5～+0.6

体积密度（g./cm3）

bulk density

1250℃×3h

after firing at

2.8

2.85

2.8

2.7

耐火度（℃）refractoriness≥

1790

1750

1790

1750

施工用量（kg/m3）amount for construction

3000

2950

3000

2850

施工方式 method of construction

振动或捣打jolt or ramming

应用

application

感应炉、电弧炉、熔化钢、铁等。

induction furnace, electric arc furnace, melting steel and iron.

特点

characteristic

寿命长耐冲刷耐侵蚀热震稳定性好耐剥落

体积稳定矿化剂优质原料防污染

timeproof erode resistance corrosion resistance

thermal shock resistance

spalling resistance volume stability mineralizer

added perfect material antipouution