Vacuum brazing fixture and general design principles
Brazing parts shall be assembled in positioning
vacuum brazing, the parts of the question in order to ensure mutual position and brazed joints required to ask gap. Brazing the brazing jig involves fixing parts, assembly, into the furnace, brazing, baked whole process. Jig is reasonable and practical directly affect the quality of brazing. Common fixture design principles and requirements also apply to brazing fixture design, such as the fixture system to have a certain precision; fixture system to have a certain rigidity to overcome the deformation process; fixture system to be compact, simple shapes, handling and convenient features in addition to considering the above principles, brazing fixtures as well as its own characteristics, generally speaking brazing fixture design should also consider the following factors:
(1) the clamp material to be able to withstand the
brazing temperature, without loss of strength , deformation and release gas, difficult to produce an alloy react with welding pieces;
(2) pay attention to fixtures and parts of thermal expansion and contraction, at the brazing temperature, to ensure the braze parts with suitable joint gap; and
(3) the clamp To ensure heat conduction soldering zone due to heat transfer on the stability of the heated components interfere with the minimum cooling, and without prejudice to the flow of the solder.
