The principle of vacuum brazing liquid cold plate

Vacuum brazing is a welding method that uses liquid solder to wet, spread and fill the surface of the base metal at a temperature lower than the melting point of the base metal but higher than the melting point of the solder to realize the connection between parts. Based on this principle, the vacuum brazing liquid cold plate realizes the connection of the aluminum substrate, the composite pad and the aluminum cover. High-power electronic components in fields such as lasers, power generation, imaging equipment, transportation, military industry, and aerospace are experiencing increasing thermal loads. The water cooling system utilizes the characteristics of large heat transfer coefficient of liquid, and relies on liquid flow to transfer high heat. It is one of the most effective cooling methods at present. It can dissipate hundreds of watts to kilowatts of heat. Except for exposed tube cold plate, long hole drilling of aluminum copper plate and friction stir welded water-cooled plate, vacuum brazing liquid cold plate can be widely used in various high power density environments.

Advantages of vacuum brazing liquid cold plate

The advantages of vacuum brazing are that the brazing is not adversely affected by flux residues, the brazing quality is high, and metals and alloys that are otherwise difficult to braze can be easily brazed. High quality brazing makes it easy to braze metals and alloys that are otherwise difficult to braze. However, due to the pre-evacuation before brazing and the time spent on cooling, the heat transfer in the vacuum is difficult, so the brazing production cycle is long.

Technical requirements of vacuum brazing liquid cold plate

Based on the principle of vacuum brazing liquid cold plate, engineers need to have rich experience and technical requirements in the design and simulation of water-cooled panels, and know all aspects of production and processing well. At the same time, it is necessary to have very perfect testing methods to fully guarantee the reliability and quality of each set of vacuum brazing liquid cold plate.

All in all, the vacuum brazing liquid cold plate meets most of the requirements of the current industrial needs. Compared with other equipment, the vacuum brazing liquid cold plate is the best choice at present.