brazing processing

A Scandinavian manufacturer of heat exchangers, SonFlow will receive a vacuum furnace from the parent company of a North American manufacturer for copper brazing adapted to the individual needs of the company's clients. A special nozzle design and electrical penetration assembly will ensure that the device is specific for the production of the latest, high-capacity plate heat exchangers for industrial, HVAC, off-shore and sanitary purposes to be manufactured in the Kolding plant.

SonFlow is a European manufacturer which has historically been known for manufacturing high-capacity industrial pumps. The company is now expanding into the plate heat exchanger business. Manufacturing state-of-the-art, powerful heat-exchangers has provided the incentive for the plant to purchase a furnace from SECO/WARWICK that will satisfy the current production challenges associated with the brazing process.

The working area of the device (900 x 900 x 1200) will enable the plant to perform in-house brazing, without the need to outsource work to third-parties. Power savings, one of the pillars of their mission, is ensured by the graphite chamber, and the shortened cycle time is guaranteed, thanks to the vacuum level of 10-3 mbar.

"Years of experience," explained Maciej Korecki, VP of the Vacuum Business Segment at SECO/WARWICK Group, "and the above approach have resulted in developing a special design of the cooling nozzles, optimum for brazing companies. This dedicated solution consisting of the special nozzle design for these radiator applications prevents excessive deposits of brazing residues in undesired areas of the heating chamber. With this design, the risk of damaging the device during the brazing process is eliminated."