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HVOF Gun HVOF stands for High-Velocity Oxy-Fuel . In this high-velocity oxy-fuel is supplied by the gun. HVOF Gun  required a very high velocity for the coating process. This high velocity is used to propel the particles at supersonic speed before impact onto the substrate. In the spray process high combustion pressure and high velocity of gas and particle resulting in high coating quality. Two types of Hvof on basics fuel Liquid Fuel Gas-Fuel HVOF Gun Application High density. Typical coatings have less than 2% porosity and some coatings as low as 0.5% porosity.  High bond strength. For example, typical carbide coatings sprayed with HVOF exhibit bond strengths in excess of 69 MPA (10,000 psi). Other coating materials sprayed with HVOF have significantly higher bond strengths than the same materials applied using other atmospheric thermal spray processes such as air plasma spray.   Optimum Hardness. A 12% tungsten carbide / cobalt coating will hav...

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

Zinc Spray Gun Zinc Metallizing  is a versatile process which melts Zinc or Zinc   Alloy metals, and then rapidly propels the molten Zinc particles onto a prepared substrate, creating a lamellar or layered coating. Metallizing, or Thermal Spraying as it is often called, is a highly effective and proven method of corrosion prevention, giving galvanic as well as barrier coating protection to iron and steel. How does Zinc Coating work? Most protective coating systems for steel function acting as a barrier between the steel and the corrosive environment. If these passive and permeable barriers are damaged or penetrated, moisture and oxygen can reach the steel causing rust and eventual coating failure. A zinc metalized coating also offers barrier protection; however, the electrochemical relationship between zinc and steel allows a zinc coating to give cathodic protection as well. A zinc metalized coating will protect the steel galvanically: it will corrode in preference to s...

Metalizing Gun Metalizing is a general process of metling metal in molten form to have thermal spray coating process is used for coating metal on product surfaces. The resultant metallic coatings can be used for protective, Anti-corrosive, decorative or functional purposes. These coatings are also known to be long-lasting, effective and highly versatile. Three Types of Spraying Techniques: Electric arc spray Combustion powder spray Combustion wire spray Electric Arc Spray is this process, we utilize two metallic wires that are electrically charged with opposing polarity as the coating feedstock. This will cause them to throw a molten arc between each other. Then injection of inert gas or high velocity air to trigger an atomization of the now-molten material and propel onto the substrate to form the coating. If you opt for the electric arc spray process, we can spray any type of metals which have melting points below 5540°C. Depending on the equipment being us...