Patent ID: 6379754
Filing Date: 2002-04-30
Classification: C23C,F16C,Y10T

Abstract:
A method for the thermal coating of an interior surface comprising:applying an oxidizable coating material with a rotating flame from a burner to a surface to be coated; and supplying a nonflammable gas stream having an oxygen content less than 18 percent by volume in flanking relation to the flame from rows of gas discharge openings laterally spaced from the flame on opposite sides in the direction of rotation of the flame to direct the flame toward the surface to be coated during rapid motion of the flame so that the oxidizable coating material is heated by the flame, directed by the nonflammable gas stream toward the surface to be coated and deposited in a layer on the interior surface with a reduced quantity of oxide to provide a reduced porosity in comparison with a gas stream consisting of air while reducing the effects of microturbulence within the flame.