Non-metallic Mineral Products

Alumina or Aluminium Oxide is an amphoteric oxide of aluminium with the chemical formula Al2O3, it’s the most well-know oxide ceramic material with combination of good mechanical properties and electrical properties. Wintrustek offers different purities of Aluminas, including 88%, 92%, 96%, 99% and 99.7%, for a wide range of applications.
In addition, Alumina can be joined to metals or other ceramics using metallizing and brazing techniques, the most common purity for this application is 96%.
Wintrustek applies different processing methods accroding to different Alumina parts of customized sizes and shapes, dry pressing, cold isostatic pressing(CIP),hot injection moulding, extrusion moulding, tape casting, slip casting, etc.

Typical Alumina Properties:
1. Low density
2. High temperature
3. Good and stable electrical insulation
4. Low dielectric constant
5. Low loss tangent
6. Good thermal stability
7. Excellent corrosion resistance
8. High hardness
9. Excellent wear resistance

Typical Alumina Applications:
1. Electrical insulators
2. Electronic substrates
3. Thermocouple tubes
4. Fire surpression
5. Furnace construction
6. Industrial ignition
7. Ballistic armour
8. Vaccum device
9. Sealing parts
10. Sandblasting nozzles

The constant goal of Wintrustek is to provide superior level of quality and sevice at competitive prices. Particular attention is paid to the production of customer for both large and small runs. We implement a very sophisticated quality control process which we have our own customers certify. All parts that pass through our facility are visually and dimensionally inspected as well as calibrated. Our engineering staffs are available for counsels and recommendations that will satisfy your ceramic requirements.