Oxyacetylene flame spraying

Oxygen acetylene flame nozzle uses oxygen acetylene flame as the heat source to heat the nozzle, causing it to melt. Compressed gas is used to atomize the melted nozzle metal into small particles, which are then sprayed onto the pre treated substrate surface to form a firmly bonded coating. This method appeared early on and is still widely used today.

Spraying uses oxyacetylene flame as the heat source, with an effective temperature range of 2000~3000; Use neutral flame or weak carbonization flame; Particle flight speed is low; The lower effective temperature limits the range of sprayed materials. Materials above 2500 are generally not suitable for oxyacetylene flame spraying and are mainly suitable for repairing components such as crankshafts and valves.

Oxyacetylene flame spraying is a process that uses gas acetylene, propane, hydrogen or natural gas, and incineration gas oxygen as the medium. The sprayed material is placed in the flame in the corresponding transport form, heated to a melted or softened state, and then accelerated onto the substrate by gas or flame spraying. By utilizing the difference in spraying materials, it can be divided into metal wire flame spraying and powder flame spraying.