High Temperature Refractory Silicon Carbide Kiln Shelves For Pottery Firing
1.Description
Refractory Silicon carbide kiln shelves, also known as carborundum, is a compound of silicon and carbon with a chemical formula SiC. is made through high temperature sintering, adopting the higher quality raw materials. It has characteristics of stable performance, excellent thermal shock resistance, oxidation resistance, long life, thin volume but high bulk density. Its good thermal conductivity can assure to save energy at maximum level.
Refractory silicon carbide kiln shelves is distinguished by high strength that stays nearly constant up to very high temperatures (1500° C), maintaining that strength over long periods.
This material displays an extremely high corrosion resistance in acidic and basic media, and this too is maintained up to very high temperatures. These properties are outstanding among high-temperature ceramics, and are complemented by high thermal shock resistance, high thermal conductivity, high resistance to wear, and hardness close to that of diamond.
2.Typical Quality Analysis
| Chemical Composition SIC >= | % | 90 |
| Physics property | Max.Service Temp. | ºC | 1450 |
| Refractoriness >= | SK | 39 |
| 2kg/cm2 Refractoriness under load T2 >= | ºC | 1790 |
| Modulus of Rupturt at room temp >= | Kg/cm2 | 500 |
| Modulus of Rupture at 1400ºC >= | Kg/cm2 | 550 |
| Compressive strenght >= | Kg/cm2 | 1300 |
| Thermal Expansion at 1000ºC | % | 0.42-0.48 |
| | Apparent Porosity | % | ≤20 |
| Bulk Density | g/cm3 | 2.55-2.7 |
| Thermal Conductivity at 1000ºC | Kcal/m.hr.ºC | 13.5-14.5 |
3.Characteristics ceramic kiln shelf
1.hgih working temperature 1450°C and heat shock stability
2.Extreme corrosion resistance
3.Lower thermal expansion coefficient
4.High thermal conductivity
5.high performance of mechanical strength
4..Application:
Our product can offer high mechanical strength at high temperature, excellent heat stability, good distortion resistance at high temperature and oxidization resistance. It can be used in high class washing basin, high-class bowl and bowl urinal. Through the burning of 1300° C, it provides high enamel and high abrasion resistance. It can keep gloss and quality for 10 years. Our brand enjoy good reputation in this trade. We are improving our product and introducing green into our sales activity.
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