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Vacuum Box Cover
This product has dense structure and high surface finish quality, with low friction coefficient and water absorption rate. It can improve the actual working time of polyester wire and save energy by the most. It has single and duo-chamber options with stable vacuum condition.
Recommended materials: Sicer-Sub A; Sicer- Si3N4
- Features
- Specifications
Advanced design concept
Low friction coefficient
High strength glass fiber base
Stable integrated frame structure
No piano key thanks to dovetail groove structure
Precisely machined and easy to replace
Low adhesive rate of pulp fiber and filler particles
Adjustable enddeckle with mechanical locking device and lubricating device
Effectively protect the wire
Long service life
s.s304/321 stainless steel box
Thermal Conductivity |
Coefficient of Thermal Expansion |
Vickers Hardness (Kg/mm²) |
Fracture Toughness |
Bending Strength |
Bulk Density |
Material |
20-25 |
7.0-8.0 |
1450-1530 |
5.0-6.0 |
380-420 |
3.86-3.88 |
Sub-micron Aluminium Oxide |
30-50 |
2.5-3.0 |
1650-1750 |
6.0-6.7 |
650-750 |
3.05-3.20 |
Silicon Nitride |