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Flame Spray Gun Flame Spray Gun  is the thermal spraying of a group of coating processes in which finely divided  metallic  or nonmetallic materials are deposited in a molten condition to form a coating. This simplest device was based on the principle that if a wire rod were fed into an intense, concentrated flame, (the burning of a fuel gas with oxygen), it would melt. If the  flame  was surrounded by a stream of compressed gas, the molten metal would become atomized and readily propelled onto a surface to create a coating.  Flame spray gun  process variation in which the controlled explosion of a mixture of fuel gas, oxygen, and the powdered coating material is utilized. it melts and propels the material to the workpiece. Flame Spray Gun Process Flame spray gun  spraying is the oldest of the thermal spraying processes, characterized by low capital investment, high efficiency, deposition rates, relative ease of operation and cost of ...

Flame Spray Gun : Flame spray gun includes blowing a plastic powder through a flame that partially melts the powder and fuses it as it contacts the substrate. The part's surface is preheated with the flame. The usual approach is to coat only a few square meters at a time, so the temperature can be controlled. The flame is then adjusted. When the coating is completed, the powder is shut off and the coating is post-heated with the flame. Flame spraying is particularly useful for coating products with surface areas too large for heating in an oven. Disadvantages are the problems associated with an open flame and the need for skilled operators to apply the coating. Flame Spray Gun Process : Flame spray gun, a century-old process, consists of a gun nozzle in which a mixture of oxygen and fuel such as acetylene, propane, or hydrogen is injected. The gas mixture is combusted in the front of the nozzle to create a flame external to the nozzle. Depending on the ratio of oxygen to ...