Ultra-high vacuum (UHV) applications in semiconductor manufacturing
and scientific research present significant sealing challenges. These applications demand solutions capable of
withstanding extreme conditions, including wide temperature ranges, variable pressures, and corrosive gases,
while also adhering to strict purity and ultra-low leakage requirements.
Sonkit Industry Technology Co., Ltd. has developed a knife-edge,
spring-energized metal C-ring specifically designed for these demanding UHV environments. This innovative seal
replaces conventional stainless steel spring-energized metal C-rings, enabling effective compression and
deformation with minimal bolt-tightening force. The unique knife-edge structure creates a true line seal,
providing exceptional reliability in vacuum applications.
Key specifications of Sonkit's metal C-ring seals for UHV
applications:
- Seal Type - Knife-edge, spring-energized metal C-ring
- Temperature Resistance - -270°C to 300°C
- Pressure Tolerance - Ultra-high vacuum (UHV) to 1 bar
- Medium - Corrosive gases, including fluorine, ammonia, and
argon.
The Sonkit C-ring seal offers several key advantages:
- Lower Bolt Tightening Force:
This seal requires less bolt tightening force than
traditional metal seals, making it a suitable replacement for rubber and non-metallic seals.
- Outstanding Performance in Extreme Environments:
It excels in high temperatures, high pressures, corrosive
conditions, and ultra-low leakage applications.
- Enhanced Safety and Long-Term Stability:
The design ensures enhanced safety and long-term stability
for scientific research, semiconductor, and high-tech vacuum applications.
The seal achieves a leakage rate of 1 ×
10-12 Pa·m3/s, exceeding industry benchmarks for UHV applications.