A large controlled-atmosphere brazing (CAB) line, previously used for other brazing operations, will be moved to the facilities of a water chiller manufacturer.

Houston-based Cold Shot Chillers tapped Seco/Warwick Group to relocate the system to its facility, where Cold Shot will use it to conduct in-house furnace brazing of heat exchangers. The indexing CAB furnace line, built by Seco/Warwick for another Houston-based OEM in 2005, has an overall load size of 48" x 100". The indexing design of the line will allow Cold Shot to produce many sizes and types of heat exchangers on a daily basis without need to adjust the menus or furnace settings.

The entire line, which measures 96', 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.