Items Tagged with 'soldering and brazing'

Uniweld’s UNI-4300 Soft Solder Kit is designed to simplify the process of joining dissimilar metals, enabling HVAC technicians to join them with low heat, minimizing the possibility of melting the base metal. The company’s UNI-4300 instructional video demonstrates one of the methods used to join aluminum tube to a copper tube.

The National Certified Pipe Welding Bureau (NCPWB), a subsidiary of the Mechanical Contractors Association of America (MCAA), announced it has developed a new soldering procedure in accordance with ASTM B-828, Standard Practice for Making Capillary Joints by Soldering of Copper and Copper Alloy Tube and Fittings.

TurboTorch® is offering hands-on demonstrations of its solutions for brazing, soldering, cutting, and welding in HVAC and plumbing applications. Demonstrations include soldering and brazing of copper tubing, brazing of black iron pipe, and how to solder copper and aluminum tubing.

Concerns related to soldering copper tube and the new no-lead copper alloys led the Copper Development Association (CDA) to conduct laboratory research and testing out in the field. The CDA found that, in many cases, those working with the new no-lead copper alloys were using the incorrect soldering procedure.

Refrigeration technicians need to use extreme care when working with torches during the brazing and soldering process. The flames of a torch can easily reach 3,000°F. At this temperature, serious damage can be the result of misuse and carelessness.