1.silicon brick 2.stable chemical performance 3.good thermal conductivity and thermal shock resistance 4.MOQ:1Ton 5.ISO9001

Refractory silicon bricks 

1. Characteristic of refractory silicon bricks 

High strength

Low thermal expansion coefficient

Good thermal conductivity and thermal shock resistance

Good resistance to liquid aluminum erosion capability

High erosion

2. Applications of refractory silicon brick 

Widely used in large aluminum electrolytic cell of lining material. In the electrolytic aluminium industry, because of silicon brick can be made thin wall lining, enlarge the tank capacity, improve the thermal conductivity, can rapid cooling, and they are permitted to enter a higher power, increase the tank production capacity, at the same time, in its surface can form alumina and cryolite of eutectic content, in order to protect the tank lining work layer, prolong service life, therefore, this product is aluminum industry generally welcome. 

3. Physical and Chemical Index of refractory silicon brick

ITEM						INDEX
SiC %						72 Min
Si3N4 %						21 Min
Fe2O3 %						0.5 Max
Porosity %						18 Max
Bulk density g/cm3						2.65-2.70
Bending strength MPa			Room temperature °C			42
			1400 °C			45
CCS MPa						150 Min
Thermal conductivity w/m·k 1250 °C						15-18
Tolerance			0-100 mm			±1.0
			101-300 mm			±1.5
			301-500 mm			±2.0
			More than 500 mm			±0.5%
			Surface irregularity			0.2 Max
			Face verticality			0.5 Max
			Diagonal difference			2 Max

4. Production process of refractory silicon brick:

a.) Choose metal silicon as raw material, add additives, then mix.

b.) Put the mixture into the mold, then make embryoid by machine pressing.  

c.) Be reaction sintered by nitrogen protection in electric furnace. 

5. Packing details of refractory silicon bricks

a.) The finished bricks are packed in wooden cases, and the wooden cases are tied up by 6 steel belts, then the wooden cases are put on fumigation wooden pallet.

b.) We also pack products as custom request.

 6.Delivery time

 30 days for 1×20GP CMB

7. Lab equipment

If you have any question, please feel free to contact Hattie Yao, I will be always here to help you.