Manufacture of Braze and Solder Alloy Powders by Atomization

摘要

Most brazing and soldering operations start with the application of an alloy powder to the parts. This can be in the form of a paste, slurry, spray, tape, or preform, all of which begin as a powder. How the powders are manufactured can impact the cost, quality, and success of soldered and brazed components. Understanding how the powders are manufactured and sized can help one make decisions on the alloy powder to use and how best to apply it to the parts to be soldered or brazed. A number of manufacturing processes are used to produce metal powders. These processes include sintering, crushing, spray drying, cladding, and atomization. While all of these methods produce excellent forms of powder, atomization produces powders that meet the extensive requirements of the brazing and soldering processes.