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Bulletin CUB-2003

SECO/WARWICK CuproBraze® Furnace Systems - 16223 Cu proBraze

®

Furnace Systems

Double layer of radiators being brazed in a SECO/WARWICK Cu proBraze

®

furnace.

Lead-free Brazing

•

More Efficient Heat TransferBetter Corrosion Resistance

PROCESS: Cu The proBraze Cu proBraze
® process is abrazing process specifically developed for the manufacturing of automotive and heavy-duty industrial heat exchangers. By using highstrength copper alloys it is possible to manu-facture light, strong, efficient and compact heat exchangers at a low cost with this envi- ronmentally friendly, lead-free process. Thebrazing of
® radiators uses a non-toxic low temperature melting alloy that works well in a nitrogen based controlled atmosphere furnace. The brazing material islead free and there is no post-braze treatment required, such as rinsing. Binders and braze alloys can be applied to the tubes, fin tips orheaders by spraying, brushing or rolling. Afterbrazing, the brazed copper-brass joints are significantly stronger than the solder metal and do not suffer from galvanic corrosion. Developed for this process, anneal resistant header, fin and tube materials assure the strength of the products.

With the development of furnaces for the process, Cu proBraze

®

brazing technology is challengingboth aluminum and copper/brass systems.