Liquid cooling technology
Server is a key machine for data processing, which is undoubtedly important for enterprises, especially for large enterprises involving finance, transportation, big data processing, etc. technicians of water-cooled panel manufacturers say that the stability of service directly affects the service ability of enterprises, so ensuring the stability and reliability of server is the top priority of these enterprises.
Servers are devices that provide computing services and data processing. Generally speaking, servers should have the ability to undertake services and guarantee services. The composition of servers includes processors, hard disks, memory, system buses, etc., which is similar to the general computer architecture. Water cooling board experts say that because servers need to provide highly reliable services, they are in processing capacity The requirements for stability, reliability, security, scalability and manageability are high.
There are many factors that affect the performance of the server, among which the excellent thermal performance has a great impact on the stability of the server. With the development of heat dissipation technology, service cooling has gradually changed from air cooling to liquid cooling. Here are the introduce the process of the liquid cooling process in the server liquid cooling system.
1. Copper tube buried in aluminum base process, also known as pressure tube water-cooled plate, is a kind of liquid cold plate that uses the combination of copper tube and aluminum substrate for heat dissipation. This process is relatively mature, suitable for mass production, with small thermal resistance. The whole pipeline can be designed without solder joints, so it has high reliability.
2. For the liquid cooling plate + liquid channel, the friction welding process is used to produce and machining the cold plate. The internal flow channel design is relatively complex. First, the liquid channel is processed by CNC, and the capping plate is welded by friction welding process. This process is also relatively mature and has good heat dissipation effect. If the heat dissipation power is large and the buried pipe method can not be met, this method is adopted. The outside of the water cooling plate is connected by welding or quick plug joint. Overall, the reliability is good.
3. Vacuum brazing liquid cold plate, it is a complex process. CNC is used to process the internal water channel of the cold plate, and then vacuum brazing is used to weld it with the plate cover. This welding method can realize the split design of liquid cold plate and can be used for heat dissipation of double-sided heat source. However, it has high requirements for welding process, relatively low production efficiency and high production cost. It is generally used for the welding of high-precision products.
4. The tight fitting sealing structure process , lt's also uses CNC to process the liquid channel of the bottom plate of the liquid cooling plate, and then tightly fit the cover and the bottom plate with screws + sealing rings. This method is relatively simple, but the precision and reliability are not high. It is suitable for thermal products with low requirements.
