For the HVACR technician, the right tool for soldering and brazing pipe — an air-fuel or oxy-fuel torch — depends on the type and diameter of the pipe, its location, and considerations related to cost, safety, convenience, and ease of use. This article will examine those factors, as well as clarify some technical issues.
NetBraze® LLC is introducing a new phos copper brazing rod that has been modified to also become silver solder. For well over 75 years, says the company, phos copper brazing rods (AWS BCuP 1-7) only brazed copper and brass metals.
Weighing in at less than 30 pounds, the 3500 portable welding and cutting system requires no gas cylinders and no compressors for cutting and welding. The welding and cutting system runs on alcohol versus inert gas, a true advancement for the HVAC industry, said the company.
ComStar International is introducing a new no heat solder that permanently bonds all metal types, unthreaded or threaded, matched or mismatched without using heat, the company says.
Mixed oxyhydrogen gas generators can be used to braze or solder copper, brass, and aluminum. These technologies work only with water and electricity, the company said.