- Gas Head Assembly
- Front End
- Turbine and Speed Control
- Countershaft and Bearing Assembly
- Wire Grip and Drive Roll Carrier
- Handle and Wire Feed Control
- Rear Wire Guide and Snubber
- Gas Head Assembly
Delivery hoses for air, oxygen, and fuel gas joint to the hose block on the bottom of the gas head assembly. The gas head assembly has a safety handle and valve return spring. When the safety handle is released, the valve return will shut down the gas head valve, extinguish the flame and stop the wire feeding
Front End
The front is the main part of a flame spray gun it includes the front wire guide, siphon plug, nozzle, sand blasting nozzle nut, air cap, and air cap body. The wire is fed through the center of these parts. The front wire guide and the siphon plug, nozzle, and air cap are also part of the front end.
Turbine and Speed Control
The turbine is air-driven and spins at a high rate of speed whenever airflow is present. Turning the control ring increase or decrease pressure on the brake plate which allows the turbine to spin slower or faster, thus changing the wire feed rate.
Countershaft and Bearing Assembly
The turbine shaft couple with the countershaft gear. This results in a decrease in the turning ratio from the turbine shaft and countershaft. The countershaft couple with the drive shaft gear, resulting in a further decrease in turning ratio to the drive shaft and the lower drive roll and the gear. The upper drive gear engages with the lower drive gear when the wire is being fed. When the upper and lower drive gears engage, the upper and lower drive rollers grip and move the wire.
Wire Grip Mechanism and Drive Roll Carrier
The thermal spray wire, zinc wire, metalizing wire grip is a piston that forces the drive roll to grip and start feeding the wire. The piston is actuated by the wire feed valve on the handle. The turbine, countershaft, and lower drive roll turn continuously when the gas head valve is in the run position. The wire grip mechanism forces the upper drive roll gear to couple the lower gear and grips the wire
Handle and Wire Feed Control
The wire feed control is an air valve that actuates the automatic wire grip. If the manual wire grip is installed, there is no wire feed control on the handle.
Rear Wire Guide and Snubber
The snubber permits the wire only to move forward and prevents the wire from being pulled back to the gun. The rear wire guide and snubber can be replaced for different size wires according to the requirement.
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