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tunbish Dry-Vibrating Castable

tunbish Dry-Vibrating Castable features:low thermal coefficient ¡¢erosion-resistance¡¢purify¡¡molten steel
¡¢rate of ladle turning high£¬used in tunbish work lining¡£

tunbish Dry-Vibrating Castable index£º

item 

index

magnesia

magnesia, calcium 

magnesia, calcium  

CZT £­ 1

CZT £­ 2

CZT £­ 3

CZT £­ 4

CZT £­ 4

chemical composition

£¥

MgO

83

81

88

72

66

Cr 2 O 3

£­

£­

£­

£­

10

Al 2 O 3

4.0

2.9

1.1

1.54

2.5

Fe 2 O 3

1.2

1.7

1.0

12.3(CaO)

3.3

compressive strength MPa

110 ¡æ

27

8

9

6.4

£­

1500 ¡æ

20

4(1300 ¡æ )

13

18.5

£­

¡¡folding strength

MPa

110 ¡æ

3.7

£­

3.1

2.5

0.7

1500 ¡æ

4.7

4.0(1400 ¡æ )

5.1

9.6

3.1(1550 ¡æ )

linear change after burning£¥

1500 ¡æ

£­ 1.73

£­

£­ 1.82

¡À 1.5

£­

thermal conduction W/m¡¤k

1000 ¡æ

1.5 £¨ 1200¡æ £©

0.93

£­

£­

0.83

volume density g/cm 3

2.46

2.98

2.25

2.10

2.68

usage

tunbish work lining£¬can be operated by person daubing or machine gunning 

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