Fuel-oxidant mixture for detonation gun flame-plating

In the process of flame plating with a detonation gun which comprises the step of introducing desired fuel and oxidant gases into the gun to form a detonatable mixture, introducing a powdered coating material into said detonatable mixture within the gun, and detonating the fuel-oxidant mixture to impinge the coating material onto an article to be coated, the improvement which comprises using a detonatable fuel-oxidant mixture of (a) an oxidant and (b) a fuel mixture of at least two combustible gases selected from the group of saturated and unsaturated hydrocarbons and wherein the combustion temperature of the fuel mixture is lower than the combustion temperature of one of the combustible gases.

In the process for operating a detonation gun having a mixing and ignition chamber and a barrel portion which comprises introducing desired fuel and oxidant gases into said gun through said mixing and ignition chamber, introducing a comminuted coating material into said barrel portion, and detonating the mixture within said gun to impinge the coating material onto an article to be coated, the improvement which comprises using a detonatable fuel-oxidant mixture of (a) an oxidant and (b) a fuel mixture of at least two combustible gases selected from the group of saturated and unsaturated hydrocarbon gases and wherein the combustion temperature of the fuel mixture is lower than the combustion temperature of one of the combustible gases.