Flame spraying technology is a form of the thermal spraying technology. Just like it’s name, it comes out like a flame when it works.
The basic characteristics of flame spraying technology are: general metal, non-metallic substrate can be sprayed, the shape and size of the substrate is usually not limited, but the holes cannot be sprayed at present; Coating materials are extensive, metal, alloy, ceramic, composite materials can be coating materials can make the surface has a variety of properties, such as corrosion resistance, wear resistance, high temperature resistance, heat insulation, etc.
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Flame spraying has little influence on the substrate, little deformation of the substrate and no change in the material structure. The disadvantages of flame spraying technology: coating and substrate bonding strength is low, cannot withstand alternating load and impact load; High requirements for preparation of matrix surface; The flame spraying process is affected by many conditions and there is no effective method for testing the coating quality. Common flame spraying methods include acetylene-oxygen flame powder spraying, acetylene-oxygen flame wire spraying, etc. The equipment for acetylene – oxygen flame powder spraying is simple and suitable for field construction and maintenance.