Shuttle kiln used Refractory Silicon carbide kiln shelves 550*400*20mm
1. Introduction
Our Silicon carbide kiln shelves in multi-sided shapes designed for top-loading electric kilns were first introduced. These thin and lightweight kiln shelves are made from an advanced oxide-bonded silicon carbide composition that is distinguished from conventional oxide-bonded silicon carbide in that it is significantly stronger, thinner and much more resistant to oxidation. Kamtai kiln shelves are 19 times stronger and weigh 50% less than conventional 1-in.-thick cordierite kiln shelves. In addition, they are made flat to stay flat so there’s no warping, even after many firings under heavy loads.
While it is true that some forms of silicon carbide are specifically designed to conduct electricity (such as heating elements), the internal bond matrix—and especially the glassy, oxide layer that is intentionally fired onto the surface of Kiln shelves—dramatically lowers their electrical conductivity compared to other types of silicon carbide kiln shelves. As a result, the electrical conductivity value of kiln shelf is low enough to be considered safe for use in top-loading electric kilns.
2. Silicon carbide kiln shelf Features
a) Excellent Thermal Shock Characteristics
b) Corrosion Resistance
c) As Cast Tight Dimensional Tolerances
d) High Creep Resistance
e) Superior Wear Resistance
f) High strength, extreme hardness,wear resistance, high temperature tolerance, corrosion resistance, oxidation resistance,thermal shock resistance, high thermal conductivity, low coefficient of thermal expansion, creep resistance under high temperature and so on.
3. Specification
| Item |
Technical Data |
| Volume density(g/cm3) |
2.70-2.75 |
| Apparent porosity(%) |
7-8 |
| Strength at normal temperature(Mpa) |
>50 |
| High temperature bending strength(Mpa/1400℃) |
>55 |
| Cold crushing strength(Mpa) |
>90 |
| Refractoriness under load (℃) |
>1750(T2)2Kg/cm2 |
| Maximum service temperature (℃) |
1450 |
| Pyroconductivity (Kcal/m.h.℃) |
13.5-14.5 |
| Thermalexpansivity(×10-6/℃) |
4.2-4.8 |
| Chemical compent |
SiC>90% |
| Fe2O3<0.3% |
| Al2O3>99%(surface coating) |
4. Usage
Our Silicon carbide kiln shelves 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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Fireproof Silicon Carbide Kiln Shelves For Shuttle Kiln 550 * 400 * 20mm Images
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