Vacuum brazing of stainless steel capillary heat exchangers is an advanced joining process used to manufacture compact, strong, and leak-tight heat transfer components. The capillary structure provides efficient heat transfer and compact design, while vacuum brazing creates clean and reliable joints without oxidation or surface contamination.
Process
The process begins with cleaning and precisely assembling the stainless steel sheets and capillary tubes, followed by placing a suitable brazing filler material at the joint areas. The assembly is heated inside a high-vacuum brazing furnace under controlled temperature conditions. The molten filler flows uniformly into the joints, forming strong and leak-tight connections. Controlled cooling helps minimize thermal stress, distortion, and deformation.
Application Industries
Stainless steel capillary heat exchangers are widely used in automotive, refrigeration, HVAC, aerospace, chemical processing, electronics, semiconductor, energy, and industrial cooling industries. Typical applications include compact heat exchangers, cooling systems, thermal management units, refrigeration equipment, and high-efficiency heat transfer assemblies.