The U.S. department of SECO/WARWICK Group has been selected to relocate a very large controlled-atmosphere brazing (CAB) line for Cold Shot Chillers. The Houston, Texas-based company will use it to conduct in-house furnace brazing of heat exchangers. Built by SECO/WARWICK for another Houston-based OEM in 2005, the CAB line will be the first for Cold Shot Chillers. The Indexing CAB furnace has an overall load size of 48 inches wide x 100 inches long. SECO/WARWICK’s design allows the flexibility to produce a wide variety of sizes and types of heat exchangers on a daily basis. The Indexing solution allows a variety of parts to be brazed with no changes to the menus or furnace settings.

The entire line, which measures 96 feet, includes a load table, dry-off (dehydration) oven, entrance/purge chamber, convection furnace, atmosphere air cooling chamber, final air-blast cooling chamber and final unloading table. In addition, there is a power panel, a control panel and an atmosphere scrubber.

The CAB process heats a product to brazing temperatures while maintaining uniform temperatures within the product in an oxygen-free nitrogen atmosphere.