The degassing system, comprising VAD (Vacuum Absorption Degassing) and OVD (Oxygen-Displacement Degassing) units, plays a vital role in optical fiber manufacturing. Its primary function is to eliminate gaseous impurities. During production, raw materials like silica particles may introduce air or other gaseous contaminants. The degassing equipment removes these impurities through vacuum or inert gas environments, ensuring the purity of preforms. Additionally, degassing helps mitigate stress non-uniformity issues generated during sintering. The presence of gases during sintering may affect material density and uniformity. By maintaining specific temperatures for a period, the internal stresses within preforms are gradually released.
Key technical specifications of VAD degassing equipment
1 | Detect loose prepreg length | ≤1700mm |
2 | Detect the diameter of loose preform | Φ40-250mm |
3 | Check the weight error of loose bodies | ±0.01kg |
4 | Check the diameter tolerance of loose parts | ±0.5mm |
Key technical specifications of OVD degassing equipment
1 | Measure the length of loose prepreg | ≤2200mm |
2 | Detect the diameter of loose prepreg | Φ40-350mm |
3 | Check the weight error of loose bodies | ±0.01kg |
4 | Check the diameter tolerance of loose parts | ±0.5mm |
Device Components
1 | Loose Body Detector | 1 set |
2 | control cabinet | 1 set |
Record Number：鲁ICP备2022038891号-2