How Can You Be Sure That Your Seals Are Reliable Even Under Extreme Conditions?

High-performance composite materials: Research and development of composite materials with higher performance for the special needs of extreme working conditions. For example, adding reinforcing materials such as carbon fiber, graphite, copper powder, and molybdenum disulfide to polytetrafluoroethylene (PTFE) can improve its mechanical strength, wear resistance, and thermal conductivity.

High-temperature resistant materials: Prefer materials with better high-temperature resistance, such as fluoroelastomer (FKM), silicone rubber (VMQ), or polytetrafluoroethylene (PTFE).

Radiation-resistant materials: In nuclear power and other occasions that require radiation resistance, 5% borate tetrafluoride composite materials can be added to increase the neutron radiation tolerance dose to 1×10⁶Gy, which meets the 10-year maintenance-free requirements of nuclear-grade equipment.

Surface modification treatment: Through plasma treatment, electroless plating, and other methods, the surface structure and performance of the seal are changed, and its surface hardness, wear resistance, and corrosion resistance are improved.

Labyrinth sealing structure: Increases the complexity and resistance of the leakage path so that the medium needs to go through many zigzag paths during the leakage process to reduce the leakage volume.

Adaptive sealing structure: Design a sealing structure with adaptive ability, such as a built-in elastic element, which can automatically adjust the sealing force with the change of working conditions to maintain a good sealing effect.

Wide temperature range compensation structure: The design of the annular corrugated compensation section allows the PTFE seal to produce ±5% axial elastic deformation and successfully passes the alternating impact test of -196°C liquid nitrogen immersion and 320°C hot oil. The structure absorbs stress through deformation during temperature changes and avoids cracking of the sealing surface.

Intelligent manufacturing technology: CNC precision machining technology is used to ensure the accuracy of seal size and surface roughness and improve the machining accuracy of seals.

High-precision machining technology: Ultra-precision grinding, EDM, and other processes are used to ensure the surface roughness and dimensional accuracy of the seal and improve the fit of the sealing surface.

Strict supplier management: Establish a sound supplier evaluation system to comprehensively evaluate the quality management ability, technical level, and delivery time of raw materials and seal production suppliers.

Strengthen process control: In the production process of seals, strict process control is implemented, a sound quality management system is established, and every link in the production process is monitored and recorded.

Improve factory inspection: Formulate detailed factory inspection standards and processes and conduct a comprehensive inspection of the size, appearance, performance, and other aspects of the seal. Advanced testing equipment and technical means are used to ensure that the factory seals meet quality standards and customer requirements.

Correct installation: Install and debug the seals in strict accordance with the installation specifications to ensure that the installation position is accurate and the sealing force is uniform.

Regular maintenance: Establish a regular monitoring system for seals, and timely find out the wear and aging of seals through non-destructive testing, leakage detection, and other means, and maintain or replace them.