The process flow of aluminum vacuum brazing water cooling plate usually includes the following steps:
1. Cleaning: Clean the aluminum joints to be brazed to remove dirt and oxides on the surface.
2. Flux application: Apply flux to the surface of the joint after cleaning. The flux can improve the wettability of the brazed joint and promote the melting and filling of the flux.
3. Assembly: Assemble the fluxed joints together, ensuring proper clearance between joints.
4. Vacuum treatment: put the assembled joint into a vacuum furnace, evacuate and maintain a certain vacuum degree, usually 10^-3~10^-5Pa.
5. Heating: The joint is heated in a vacuum environment to melt the flux and fill the joint gap.
6. Cooling: After heating for a certain period of time, stop heating and keep the vacuum state, so that the joint is gradually cooled and solidified.
7. Cleaning: Take the cooled joint out of the vacuum furnace, clean and remove excess flux and oxides.
