T. G. A. Ltd.
T. G. A. Ltd.
[
Czech Republic ]
Czech Republic
SIC
Grain
Irregular
Refractory
Hamburg
Within 30 days of order
According to the customers' demands
4000 / Year
L/C, T/T
Introduction:
Silicon Carbide is produced mainly in discontinuous resistance furnaces similar to the technology, which E. G. Acheson developed in the 1890’s in the USA.
The electrochemical reaction of a mixture of carbonaceous material (normally petroleum coke) and a high quality Silica Sand at temperatures between 1700 – 2500 °C causes the formation of Silicon Carbide.
Application:
1. Black silicon carbide is widely used for making grinding wheel, sanding belt, sanding paper, whetstone, mounted point, etc.
2. It's suitable for processing glass, ceramic, stone, cast iron, nonferrous metal, etc.
3. It also can be used as metallurgical additive and high-grade refractory material.
a) Typical chemical analysis:
| SiC black | ||
| F240 – F400 | F500 – F1200 | |
| SiC | > 98,50% | > 97,00% |
| C | 0,30% max. | 0,50% max. |
| Si | 0,60% max. | 1,00% max. |
| SiO2 | 0,80% max. | 1,20% max. |
| Fe | 0,10% max. | 0,20% max. |
b) Physical properties:
| Grain size | Range of grain size in v µm | Loose pack density (kg/l) SiC black |
| F240 | 63,0 – 53,0 | 1,46 – 1,48 |
| F280 | 53,0 – 45,0 | 1,46 – 1,48 |
| F320 | 45,0 – 32,0 | 1,42 – 1,45 |
| F360 | 23,1 – 20,1 | 1,30 – 1,33 |
| F400 | 17,5 – 15,5 | 1,17 – 1,25 |
| F500 | 13,3 – 11,3 | 0,98 – 1,02 |
| F600 | 10,0 – 8,0 | 0,86 – 0,925 |
| F800 | 7,3 – 5,3 | 0,75 – 0,79 |
| F1000 | 5,3 – 3,7 | 0,54 – 0,64 |
| F1200 | 3,6 – 2,6 | 0,52 – 0,54 |
| F1500 | 2,5 – 2,0 | 0,42 – 0,45 |
Grains are produced in accordance with norm FEPA standard 42 – D – 1984.
