1. Description
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 posts 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 kiln
posts—dramatically lowers their electrical conductivity compared to
other types of silicon carbide kiln posts. As a result, the
electrical conductivity value of kiln post is low enough to be
considered safe for use in top-loading electric kilns.
In addition, as the kiln post 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. Product Technical Parameter
| Physical & Chemical Specification of Carborundum Products |
| Bulk Density (g/cm3) | 2.65 |
| Apparent Porosity (%) | 18 |
| Modulus of Rupture at Room Temp(kg/cm2) | 31.10 |
| Modulus of Rupture at 1350℃*0.5h (MPa) | 18.4 |
| Thermal Shock Resistance(cycles)(1100℃) | 20 |
| Refractoriness (℃) | 1790 |
| SiC (%) | 95 |
3. Application
Our silicon carbide refractory kiln post 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.
We promise:
- We will offer our best price.
- Your inquiry will be replied within 24 hours.
- Experienced staff can give you professional suggestions.
- We ensure you high quality products and timely delivery.
- We offer complete and good after-sale service.
