Patent ID: 9382604
Filing Date: 2016-07-05
CPC Classification: B05B,C23C

Claim Text:
1. An apparatus for forming an amorphous coating film by jetting flame containing particles of a flame spray material from a flame spray gun toward a base material, causing the particles to be melted by the flame, and cooling both the particles and the flame by means of a cooling gas before they reach the base material, the apparatus comprising a tubular member provided at a melting zone, in which the particles are melted, among a path along which the flame is jetted by the flame spray gun, so as to shield the flame from an atmospheric air in the melting zone, the tubular member having a flow channel for the cooling gas, formed along and integrally to the tubular member, the apparatus having, between the tubular member and the flame spray gun, air-intake vents or inert-gas-feed openings configured to suppress development of a negative pressure in the tubular member, wherein the tubular member has a proximal end which is connected to the flame spray gun, and the proximal end or the vicinity thereof is operable between an opened condition for an ignition of the flame spray gun and a closed condition.