SECO/WARWICK is one of the world’s most experienced and innovative brazing furnace manufacturers with over 300 controlled atmosphere brazing (CAB) systems installed worldwide. Our commitment to quality products begins in our brazing center, application engineering and continues through the complete installation of your system, including aftermarket support.
Controlled atmosphere brazing (CAB) of aluminum using a noncorrosive flux, is the preferred process for manufacturing aluminum heat exchangers. Since entering this field in 1984, SECO/WARWICK has led the development of advanced technology in the aluminum brazing process. Capitalizing on our many decades of furnace design experience, SECO/WARWICK has driven innovations such as:
/ Improved muffle design
/ Convection heating technology
/ High atmosphere quality solution
/ Vacuum purging system for semi-continuous and batch furnaces
/ ACCUBRAZE® PC/PLC controls
/ Customized heating systems: electrical or gas
/ Energy saving designs
Our continuous CAB furnaces, as described below, use a variable speed drive and a stainless-steel mesh belt to move products. The controlled atmosphere brazing (CAB) process heats a product to brazing temperatures while maintaining uniform temperatures within the product in an oxygen-free nitrogen atmosphere. During furnace brazing, a brazing sheet of aluminum/silicon alloy plate (cladding) is heated to a liquid state and flows to form aluminum joints or fillets. Al-Si phase diagram giving reference to the different alloys used for CAB brazing with temperatures of the liquid phase for each.
Controlled Atmosphere Brazing Process