Airoshot blasting machine Manufacturer Supplier & Exporter

Twin Wire Arc Spray Gun Twin Wire Arc Spray Gun is a gun in which two wires   anode and cathode respectively fed into the gun. When two wires touched it creates a spark and causes heating of those wires. Through which molten metal is poured onto the subject. The Twin Wire Arc process is a common commercial thermal spray process. It uses abrasive as a wire only other abrasive can't be used in Arc Spray Gun . Twin Wire Arc  the coating is applied using a spray torch, which brings two electrically energized feedstock wires together. When the wires cross, an arc, similar to a welding arc, forms between the wire tips and causes them to melt. A gas stream injected behind the arcing wire tips atomizes the molten feedstock material and propels it downstream. When molten droplets of the feedstock material encounter the substrate the droplets flatten, solidify, and form a coating containing the characteristic lamellar structure associated with thermally sprayed materials....

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 ...

HVOF Gun (High Velocity Oxy Fuel Gun)   devices are a subset of the flame spray gun . There are two differences between the traditional flame spray and HVOF. HVOF uses limited combustion and a widespread nozzle to heat and stimulate the powdered coating material. Characteristic HVOF devices operate at hypersonic gas velocities, i.e. greater than MACH 5. The ultimate velocities afford kinetic energy which helps provide coatings that are extremely dense and very well adhered to in the as-sprayed condition. Benefits  of  HVOF Gun: Low porosity        Higher bond strength (>10000 psi) Uniform repeatability Low operating cost Higher particle velocities Stable deposition rate Controlled coating thickness Safety interlocks