MSSA Puddle Torch / Powder Torch
The MSSA Puddle Torch (also known as a Powder Torch) is a specially designed oxy-acetylene torch used for powder welding (hardfacing). Powder Welding involves an oxy-acetylene flame spraying followed by fusing as a two stage process. After spraying, the coating is fused with an oxy-acetylene burner or for mass production by using induction heating or a vacuum furnace, which allows the coating to be metallurgically bonded, extremely hard, corrosion resistant as well as resistant to impact and chipping. The powders used for spray and fuse hard-facing are typically compositions of Ni, Cr, Co, Bo, Fe, W and WC in varying blends. The powder is introduced into the gas stream from the integral powder hopper and then transferred to the work piece through a flame.
