Vacuum brazing is a processing method that utilizes brazing in a vacuum environment. A strong solder joint is formed by heating the solder to its melting point under vacuum and allowing it to wet and diffuse across the metal surfaces to be joined.
Vacuum brazing has the following advantages:
1. High-quality welds: Due to the reduced presence of oxygen and other gases in the vacuum environment, the formation of oxidation and impurities can be avoided, resulting in high-quality welds.
2. Improve welding strength: Vacuum brazing can realize high diffusion and wetting of solder and metal substrate, forming higher welding strength and reliability.
3. Maintain material properties: During the vacuum brazing process, the pollution and influence of gases and impurities on materials can be avoided, and the original properties of metal materials can be maintained.
4. Low residual gas: brazing in a vacuum environment can reduce the residual gas, reducing the pollution and impact on vacuum equipment.
5. It is suitable for the connection of high temperature and easily oxidized materials: vacuum brazing can be carried out at high temperature, and is suitable for the connection of easily oxidized materials under high temperature environment.
In summary, vacuum brazing provides high-quality welds, high weld strength, and the advantages of maintaining the properties of metallic materials by welding in a vacuum environment. It is widely used in aerospace, electronic devices, vacuum equipment manufacturing and other fields.
