Semi-graphitic Cathode Carbon Block is made of high quality and high temperature 1800 centigrade electrical calcined anthracite,graphite particle as raw material,pitch as binder,through forming,and baking under temperature 1350 centigrade.

It acts as both electrical conductive material and lining material in electrolyzer.It features high resistance to high temperature,erosion and termal shock,good electrical and thermal conductivity.It is helpful of saving energy, increasing current efficiency and prolonging service life.

Physical and Chemical Data of Cathode Carbon Block

Item

Regular Carbon Block

Semi-graphitic Carbon Block

GraphiticCarbon Block

Graphitized Cathode

Graphitized

Impregnatedand Graphitized

BCL-RG

BCL-10

BCL-20

BCL-30

BCL-50

BCL-100

BCL-GT

BCL-IG

Ash

%

≤

8

7

8

5

4

3

0.5

0.5

Resistance

μΩ·m

≤

55

42

45

35

30

25

15

13

Expansion

%

≤

1.5

1.0

1.2

0.6

0.5

0.5

0.4

0.35

Real Density

g/cm3

≥

1.88

1.90

1.88

1.94

2.01

2.05

2.12

2.18

Bulk Density

g/cm3

≥

1.54

1.56

1.54

1.56

1.60

1.60

1.58

1.65

GrushingStrength

MPa

≥

30

30

30

28

27

25

20

24

BendingStrength

MPa

≥

-

-

-

12

10

9

6

9

ThermalConductivity

W/k·m

30°C

≥

-

-

-

12

15

20

80

90

600°C

≥

-

-

-

14

25

30

60

80

ExpansionLinear

%

 ≤

-

-

-

4.0

4.0

4.0

4.0

3.5