TSR300H HVAF-ARC Spray System

Microstructures

Principle of Operation

The HVAF-ARC system produces dense and finely structured coatings from solid and cored wire stock. The TSR300H gun employs an electric arc for wire fusion and HVAF jet for atomization and acceleration of fused particles.

The spray head, which is the size of a conventional arc head, includes a toroidal combustion chamber atomizer surrounding wire tips. A hot catalytic insert activates air-fuel combustion and makes it stable within an extremely short chamber.

Exhaust gases are directed into the arc zone. The resultant high velocity jet atomizes molten material, accelerates particles, and propels them toward the substrate where they form a coating. This jet is low in oxygen content and protects the liquid metal from oxidation in the arc zone.

Durable Design

User Friendly and Reliable

As simple to use as conventional arc systems the TSR300H spray gun features outstanding reliability and ease of operation. The operator loads the wire, pushes the On button to start the HVAF jet, and begins spraying. The gun can be taken apart in seconds, making repair and maintenance easy.

Complete System

The Model TSR300H HVAF-ARC Spray System includes the gun, ignition box, control console, wire box and power supply. An optional propane vaporizer or natural gas booster provides stable fuel gas flow and pressure.

Gun Design Features

Coatings for Tough Jobs

Tough Low Porosity Coatings

Dense, very fine structured coatings with even distribution of elements and phases are formed due to the atomization of spray wires to extremely fine particles, their acceleration to high velocities, and in-flight protection against oxidation. While this is beneficial to all sprayed materials, the Model TSR300H gun demonstrates exceptional performance while spraying cored wires. Hard-face coatings of such wires exhibit improved resistance to erosive and abrasive wear, and in many applications they can replace hard chrome plating.

TSR300H Gun Specifications
 

Wire drive type	DC motor
Wire diameter	1.6 or 2.0 mm
Maximum arc amperage	300 A
Arc voltage	20-38 VDC
Duty cycle	100%
Fuel gas	propane, natural gas
Air consumption	40 cfm (1080 L/min)
Air pressure	100-125 PSI (7-9 Bar)
Fuel consumption (propane)	0.15 lb/min (0.068 kg/min)
Fuel gas pressure	100-125 PSI (7-9 Bar)
Combustion chamber cooling type	Air cooled
Ignition type (start up only)	Spark plug
Weight	6.16 lbs (2.8 kg)

Worldwide Support

The Model TSR300H was developed by UniqueCoat Technologies, LLC’s R&D team with more than 30 years of experience in studying the processes and designing thermal spray equipment. Our online and on call technical assistance will help you resolve any problems with your equipment, as well as provide you with technical advice. All spare parts are always in stock and can be shipped the same day. Training is also available to ensure that your operators get the best results from this equipment. The Model TSR300H HVAF-ARC Spray System is backed by a limited three year warranty.

Microstructures

Articles and Brochures
 

Name	Topic
HVARC.pdf	Brochure