Remember when copper was commonly used in mobile air conditioning? Hans Fernqvist does. He’s a leading technical expert on climate AC systems at Volvo Car Corp. and has been actively involved in the ...

HVACR pros can learn aluminum brazing and test their skills at the Harris Products Group booth during the 2023 AHR Expo. Harris is conducting educational presentations and giving participants the ...

Brazing is the process of combining two metals using a filler material that melts, flows, and wets the surfaces of the metals at a temperature lower than the melting point of the metals. A covering ...

Although torch brazing is the most widely used brazing method, finding a skilled operator for the process is a difficult task for many manufacturers. Moreover, it elevates regulatory and safety ...

Bob Forty’s venerable HVACR experience (detailed in The NEWS, “Aluminum vs. Copper: The Great Condensing Coil Debate,” Feb. 18, 2002) and comparisons with our industry’s all-copper, all-aluminum, and ...

Brazing joins parts by heating them to more than 840°F and applying a filler metal that has a melting temperature below that of the base metal. Filler metal flows into the joint by capillary ...