(1) Low brazing heating temperature, smooth joints, small structure and mechanical properties, small deformation, workpiece size accurate.

The same metal can be welded, different materials can also be welded, the thickness of the workpiece is not strictly limited.

(3) Some brazing methods can weld multiple parts and joints at the same time, with high productivity.

(4) Simple brazing equipment and low production investment cost.

(5) Low strength, poor heat resistance, strict cleaning and finishing before welding, expensive solder.

application

Brazing is not suitable for welding common steel structures and heavy moving parts.Mainly used for precision instruments, electrical parts, heterogeneous metal parts and complex sheet structure, such as sandwich structure, honeycomb structure, etc., also used for brazing various wire and carbide tools.During brazing, the contact surfaces of the workpiece to be brazed are cleaned and assembled in an overlapping manner, and the brazing filler metal is placed near or directly in the joint clearance.When the workpiece and solder are heated to a temperature slightly above the solder melting temperature, the solder will melt and saturate the solder surface.The liquid solder will flow and diffuse along the joint by capillary action.The brazed metal and solder are then dissolved and permeated to form an alloy layer that condenses to form a solder joint.

Brazing has been widely used in machinery, electrical machinery, instruments, radio and other sectors.Carbide tools, drills, bicycle frames, heat exchangers, conduits and various containers.Brazing is even the only possible way to make microwave waveguides, vacuum tubes, and electronic vacuum devices.