|
Product Details:
|
| Name: | Excellent Quality Refractory Silicon Carbide Kiln Shelves 530*330*20mm | Type: | Kiln Shelf |
|---|---|---|---|
| Size: | 530*330*20mm | Bulk Density: | 2.7-2.75g/cm3 |
| Feature: | High Temperature Resistance | Packing: | Box Or Pallet |
| Highlight: | ceramic kiln furniture,silicon carbide shelves |
||
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.
Contact Person: Mr. Bruce
Tel: 86-18351508304
Fax: 86-510-8746-8690
