Ceramany masters all ceramic manufacturing processes, starting with powder processing through high-pressure and low-pressure injection molding, as well as dry pressing and isostatic pressing.
The subsequent green machining is done on CNC lathes and milling machines.
After the sintering process, mechanical processing is only possible by grinding with diamond tools. We can fall back on the following processes:
- Flat grinding
- External cylindrical grinding
- Internal cylindrical grinding
- Centreless grinding
- Honing (flat honing, superfinishing, internal honing)
- Drilling
- Lapping
- Polishing
Precision grinding permits compliance with narrow tolerances from DIN ISO 2768-mK or better.
Our materials:
Aluminium oxide
Ceramany uses aluminium oxide in many applications. This material is highly versatile and inexpensive in comparison with other high-performance ceramics. Due to the proportion of rare earths, it is often even more cost-efficient than carbide.
Characterised by outstanding abrasion resistance, aluminium oxide is nearly as hard as diamond. Other outstanding properties include chemical resistance, e.g. against acids and alkalis, and extraordinary temperature resistance.
Aluminium oxide offers a high thermal conductivity.
A high purity of 99.7% significantly increases strength and corrosion resistance even further. Aluminium oxide is very often used for electrical insulation for its high dielectric strength.
Zirconium oxide
Zirconium oxide (zirconium dioxide) is characterised by outstanding flexural and impact strength. Since zirconium oxide is relatively “soft” when compared to other high-performance ceramics, it is particularly useful in particular for components in mechanical engineering. At the same time, it is suited well as a counterpart for steel or carbide, e.g. in the form of a steady rest.
Zirconium oxide is biocompatible, and therefore suitable for the food sector as well as for medical technology.
Due to its low thermal conductivity, zirconium oxide is also used as a thermal insulator. Since the modulus of elasticity and thermal expansion are similar to those of steel, the material is suitable for installation in assemblies subject to temperature changes.
Silicon nitride
This all-rounder among the high-performance ceramics offers an entire range of advantages for the most diverse applications. This low-density material is very low in weight, making it particularly interesting for devices that perform rotating or pivoting movements.
Silicon nitride is very hard and has a high chemical resistance, similar to aluminium oxide, but is closer to zirconium oxide in terms of impact strength. It can, therefore, be found throughout the field of mechanical and plant engineering in applications where many issues occur at the same time.
However, its greatest advantage is in its high temperature and thermal-shock resistance, which places this material, e.g., in induction plants. Beyond this, silicon nitride preserves its full strength in a temperature range up to nearly 1000 °C. It shows barely any expansion at all.
