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[China]
Trade Verify
Address: Dagang Village,Dingshu Town, Yixing City,Jiangsu Province, China
Contact name:Bruce
Yixing City Kam Tai Refractories Co.,ltd |
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Verified Suppliers
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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.
