In the field of liquid cooling technology, the complete sealing and zero leakage of the liquid-cooled CDU (Coolant Distribution Unit) are crucial to ensuring the stable operation of the system. So, how is it achieved?
1. Ultra-High Precision Component Processing Flow
Since the smoothness of the inner wall of the internal pipeline of the CDU affects both the resistance during liquid flow and the wear of the pipeline wall, thereby leading to the risk of leakage. Therefore, all components of the liquid-cooled CDU undergo an ultra-high precision processing process. From the pipeline to the interface at each position, the size and shape of a part are precisely controlled to ensure perfect fit during assembly, reducing gaps and potential leakage points.
2. Selection of High-Quality Sealing Materials
Selecting high-quality and appropriate sealing materials is an important part of achieving zero leakage. Generally, rubber or polymer materials with high elasticity, corrosion resistance and high temperature resistance are adopted. These sealing materials can maintain excellent sealing performance under extreme working conditions and effectively prevent liquid leakage.
3. Strict Assembly Process
During the assembly of the liquid-cooled CDU, assembly workers must comply with strict operating specifications and process flows. Each connection part is carefully installed and tightened to ensure that the seal is correctly installed and meets the specified pressure and torque requirements. At the same time, multiple pre-assemblies and tests will be carried out to detect and solve potential sealing problems in advance.
4. Advanced Detection Technology
After the production of the liquid-cooled CDU is completed, pressure testing equipment will be used to apply pressure higher than the normal working pressure to the entire system to check for leakage. At the same time, high-precision instruments such as helium mass spectrometer leak detectors are used for secondary testing to detect extremely small leakage points, ensuring the equipment is foolproof.
5. Continuous Quality Monitoring
The liquid-cooled CDU equipment put into use will undergo periodic and continuous quality monitoring. Regular inspections and maintenance can timely detect problems such as aging and wear of seals, and replace and repair them.
Through the above series of measures, the liquid-cooled CDU can achieve complete sealing and zero leakage, providing stable and reliable cooling support for various equipment that requires efficient heat dissipation. With the continuous progress of technology, the sealing technology of liquid-cooled CDU will be continuously optimized and improved, providing a more solid guarantee for the wide application of liquid cooling technology.
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Written by
CoolingThermal Engineering TeamCoolingThermal is an automation equipment manufacturer based in Kunshan, China, specializing in heat pipe and vapor chamber production equipment since 2017. Our engineering team designs, builds, and commissions complete production lines covering forming, degassing, welding, testing, and assembly processes. The technical content on this blog is written by the same team that develops the equipment — based on real production experience, not secondary research.
