Arc spray gun is a coating process in which where two consumable metal wires are fed independently into the spray gun. Certain wires are then charged and an arc is produced between them. The heat of this arc melts the incoming wire, which is then entrained in an air jet of the gun. This entrained molten feedstock is when dropped on a substrate with the help of compressed air. In an arc spray gun, the weight of coating that can be transferred per unit of time is a function of the electrical power (amperage) of the method and the frequency and melting point of the wire. The wires are usually made of electrically-conductive materials, such as Aluminum, Zinc, Stainless Steel, and Copper.
Wire Arc Spray Gun Process
Wire arc spray gun uses two consumable wires of metal to fed inside the gun independently. These wires are charged and then an arc is generated between them. The heat from this arc melts the incoming wires of metal, after that this molten metal entrained in an air jet from the gun. This entrained molten metal deposited onto the workpiece with the help of compressed air. This process frequently used for heavy coating of metallic on a workpiece.
Wire Arc Spray Gun Advantage
- Wire Arc Spray coatings are gaining potential due to lower operating costs,
- Higher material output per hour, and production of a more coarse coating than the Plasma or HVOF gun methods.
- Wire Arc Spray coatings are exceptionally suited for the dimensional restoration of both is-machined, worn parts and also provide an on-site solution.
- Hence offers versatility and high reliability
Zinc Wire Coating
It is a different form of the arc which deposits a coating on the interior and external surface of a part of any geometry. It is mostly used for coating on the cylinder bores of an engine. This allows the use of an aluminum engine block externally having heavy cast iron sleeves. An arc is used to melts the wire that is a supersonic plasma jet. The plasma jet set by given an arc between a non-consumable cathode and wire which is required for coating.
Air Compressor transports the molten droplets stream on the components after atomization. Due to the high kinetic energy the molten droplets impinge on the surface of the substrate and flatten. When molten droplets come in contact then they rapidly solidify. The thermal spray gun process utilizes a single wire as the feedstock material.
Applications of Arc Spray Gun
- Production segments that show explicit surface attributes.
- Utilize less costly substrate materials for segments, yet keep up elite surface properties.
- Improve part administration life.
- Fix existing segments to like-new or better than new condition.
- Rescue mismachined parts.
- Give an elite bond coat in a covering system.
Benefits & Features
- No combustible gas supply is required.
- Versatile, reliable, and easy to operate.
- High production spray rates.
- Produces easily to machine coatings.
Industrial Uses
- Power Generation.
- Waste Incineration.
- Electronics.
- Automotive.
- Aerospace.
Arc Spray Gun Manufacturers in India
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