Associated Plasmatron Private Limited

We are also engaged in providing services of Air Plasma Spray Coating. It is process in which the metal substrate is coated with ceramic giving it a smooth protective layer. This includes air plasma spraying (ASP) particles of the ceramic coating at a pre-selected particle with velocity of about 500 meters per second. The size of ceramic particles is less than 50 microns and roughness is not more than 200 micro-inches.

Specifications:

• Coating Material Form:
• Powder Heat Source: Plasma Flame
• Flame Temperature (in ⁰C): 12000 to 20000
• Gas Velocity (m/sec): 500
• Porosity: 2 to 10 %
• Coating Adhesion (MPA): 40 to 70

We are one of the leading service providers of HVOF (High Velocity Oxygen Fuel) which is basically same as that Combustion Powder Spray Process (LVOF). This process has been developed to produce high spray velocity as these coatings are very dense, strong and have low residual tensile stress. There are plenty of HVOF guns which incorporate various methods to gain high velocity spraying. One of the method is through high pressure water cooled HVOF combustion chamber and a nozzle. In this method fuel and oxygen are fed into the chamber and high pressure of flame is forced down the nozzle increasing its velocity.

The other method includes a simpler system of a high pressure combustion nozzle and air cap. This method is followed by supplying fuel gas and oxygen at high pressure and thus the compress air occurs outside the nozzle but within the air cap. This compressed air accelerates the flame and acts as a coolant for the HVOF gun; finally the powder is fed under high pressure directed from the centre of the nozzle.

Specifications:

• Coating Material Form: Powder
• Heat Source: Oxy-Fuel Combustion
• Flame Temperature (in 0C): 1500 +
• Gas Velocity (m/sec): 1500 +
• Porosity: 1 to 5 %
• Coating Adhesion (MPA): 70 +

We provide Powder Flame Spray Coating Services  which is basically spraying of molten material in powder form melted in a flame onto a surface to provide a coating. When this powder form is sprayed on a substrate material, these fine molten droplets rapidly solidify top form a coat. This is also called the “cold process” as the temperature during the entire process is kept low. The main advantage of this process is that a wider range of material can easily be processed into a powder form in order to gain larger choice of coatings.

Specifications:

• Coating Material Form: Powder
• Heat Source: Oxy-Fuel Combustion
• Flame Temperature (in ⁰C): 3000
• Gas Velocity (m/sec): Up to 300
• Porosity: 10 to 15 %
• Coating Adhesion (MPA): 14 to 20

We undertake a Wire Arc Spray Coating Service is a process in which, a pair of electrically conductive wires is melted by means of an electric arc at high temperature of 7200 degree Fahrenheit. The molten material is atomized by compressed air and propelled towards the substrate surface. The impacting molten particles on the substrate rapidly solidify to form a coating. While spraying on a non-ferrous material, mechanical roughening can be followed by a bond coat of low-carbon steel to increase bond strength. This process also allows coating of mixed metal by feeding a different metal through each electrode as well as to repair shafts.

Specifications:

• Coating Material Form: Wire
• Heat Source: Electric Arc
• Flame Temperature (in ⁰C): 3600
• Gas Velocity (m/sec): Up to 300
• Porosity: 10 to 15 %
• Coating Adhesion (MPA): 28 to 40

We offer Wire Flame Spray Coating Services to a varied number of industries. Wire Flame Spraying process uses molten metal in wire form which is then atomized using compressed air to provide a coating. To avoid damage, metallurgical changes and distortion to the material, the temperature has to be kept low during processing and this process is also called “cold process”. This flame spray process is highly demanded by our clients for machine element work and anti-corrosion coatings.


Specifications:

• Coating Material Form: Wire
• Heat Source: Oxy-Fuel Combustion
• Flame Temperature (in 0C): 3000
• Gas Velocity (m/sec): Up to 300
• Porosity: 10 to 15%
• Coating Adhesion (MPA): 14 to 20