ZXCARBON COLD LINING PASTE
TYPE-K

Applications

ZXCARBON Cold Lining Paste Type-K has been used with great success in furnace linings for production of Silicon Metal, Ferro Silicon, Silicon Manganese and Calcium Carbide.

Installation of new linings, as well as the repairing and maintenance of existing linings, is effectively accomplished using ZX Cold Lining Paste Type-K.

Benefits

Use of ZX Cold Lining Paste Type-K provides a monolithic carbon lining.

The paste is easy to install.

Installation has been simplified and is less time consuming compared to that of the traditional installation of carbon blocks. This results in reduced installation costs, shorter down time for the relining and reduced loss of production and profit. Since the price is less than the price for carbon blocks, material costs for relining will also be greatly reduced.

General description

ZXCARBON Cold Lining Paste Type-K normally forms the inner wear furnace lining and is used as an alternative to carbon blocks.

The paste has a high content of graphitized anthracite which improves resistance against alkali attack.

Contains

Electrically Calcined Anthracite 80 - 90  %

Coal Tar Pitch 10 - 20  %

Baking recommendations

The binder is carbonized at about 500°C. The paste should be baked to 950°C to meet the typical characteristics.

Preferred temperature increase during baking is 5 - 25°C/hour. Maximum recommended temperature increase during baking is 40°C/hour. 

To avoid that the paste dries out before reaching the baking temperature, it is essential to have a continuous temperature increase within the temperature range of 200-500°C.

Typical characteristics*

Unbaked paste

Density 1610  kg/m3

Baked at 950°C

Weight loss during baking 9.5  %

Linear thermal shrinkage (500-950°C) 0.2  %

Coefficient of thermal expansion (950-20°C) 4.5  10-6/K

Density 1460  kg/m3

Open porosity 19  %

Compressive strength 20  N/mm2

Electrical resistivity 60  µWm

Ash content                              4.5  %

Thermal conductivity 7  W/mK

 

Preferred temperature for installation is 15-30°C

*The test data shown are based on average results of control tests and are subject to normal variation on individual tests. Accordingly, test data cannot be taken as establishing maximum or minimum specifications. Sample averages would be expected to meet an unilateral limit for each property 90% of the time. 
The samples are rammed 100 strokes in a Fischer Sandrammer.