
Excellent quality refractory Silicon carbide kiln shelves 530*330*20mm
1. Introduction
Benefits such as high thermal conductivity, low mass, light weight, stability (i.e., no warping), and resistance to glaze sticking and penetration have gained these kiln shelves increasing acceptance from artists, educators, production potters, and tile manufacturers. Despite their popularity, questions are often raised regarding the appropriateness of the shelves’ use in resistance element electric kilns. Specifically, “Are they safe to use in my electric kiln?”
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 Advancer 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.
In addition, as the shelves are fired repeatedly in an electric kiln’s oxidizing atmosphere, the glassy layer continues to accumulate and further reduces the rate of conductivity. The use of cordierite or similar post compositions also eliminates the possibility of current being conducted from one level of shelves to another, should element contact occur on a lower shelf.
2. 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) |
MAIN SIZE OF SILICON CARBIDE KILN SHELF | |||||||
240*200*T | 295*295*T | 310*310*T | 320*320*T | 340*340*T | 320*150*T | ||
320*300*T | 340*200*T | 380*340*T | 400*150*T | 400*190*T | 400*195*T | ||
400*200*T | 400*230*T | 400*270*T | 400*320*T | 400*400*T | 420*420*T | ||
450*450*T | 400*215*T | 320*240*T | 550*400*T | 500*450*T | 500*370*T | ||
600*500*T |
| 600*400*T | 600*550*T | 620*560*T | 550*370*T | ||
700*500*T | 550*500*T | 500*480*T | 600*400*T | 420*400*T | 450*400*T | ||
Thickness can be 10-30mm |
3. Application
1.) Side wall Electrolyzer cell chemical-industrial reaction pot.
2.) Used as Kiln shed board, slide push board, sagger, Tuyere
combined bricks.
3.) Used in blast furnace belly, Bosh and lower stack, cooling
wall, rubbish burning furnace and boiler.
Yixing City Kam Tai Refractories Co.,ltd
Yixing City Kam Tai Refractories Co.,ltd is located in Yixing, the
Pottery capital of China. Our company is founded in 2006, it is a
professional refractory and ceramic company which cover research,
production, sales and after-sales service. Since establishment, we
adhere to principle of “Technological Innovation, Never Stop”,
continuously improve R&D and production process and equipment.
Moreover, we cooperate with famous university such like Liaoning
University of Science and Technology, Beijing University of Science
and Technology.
Main Products
We mainly manufacture industry furnace refractory material such as
Sic PLATE,Setter plate, Push plate, Pillar,Sagger, Technical
Ceramic, Furnace material and so on. Our product is widely used to
sinter Magnetic Material, Electronic Ceramic, Daily Ceramic, Powder
Metallurgy, Rare Earth Battery Material and so on. Our sandwich
setter plate, electronic ceramic used sagger, Lithium battery
cathode material sintering sagger are very good , and they have
been leader products in our field .
Company Vision
Since our establishment, we insist on “No best , Just Better” , aimed to be the top Supplier of Refractory material and Technical Ceramic in the world.