Apparatus and method to improve mixing in axial injection of materials in thermal spray guns

摘要

A method for performing a thermal spray process, which includes: heating and / or accelerating a gas to form an effluent gas stream; feeding a carrier current that supports particles through an axial injection port (114) to said effluent gas stream to form a mixed stream of both; and impacting the mixed stream on a substrate to form a coating characterized in that said axial injection port (114) comprises a plurality of chevrons (120) located at a distal end of said axial injection port (114).