SiO2 and Al2O3 ceramic are the most popular and low cost material.
As a high tension insulator, it is used for suspension-type insulator, pin-type insulator, and bushing. Also,low or middle tension insulator is used for home appliance like heater parts, porcelain bushing, plug, socket, and wiring parts. In the case of outdoor usage , we can coat it with glaze.
Pros
-provide excellent electric insulation
-Low cost products
Usage
-Insulation parts for home appliance
-Insulator
-Any kind of heaters terminal
-Porcelain bushing
Information
| Information | Value |
| Nishimura No. | N-04 |
| Main Component | ･SiO2・Al2O3 |
| Bulk specific gravity | 2.3 |
| water absorption | ＜ 0.01％ |
| Bending strength | 80 MPa |
| Dielectric constant | 5.9（1MHｚ） |
| Dielectric less tangent | 5.37×10-4（1MHz） |
| Thermal expansion coefficient | 6.7×10-6/℃ |
| Thermal conductivity | 1.7W/m・K |
| Thermal shock resistance | 1200℃ |