Nozzles


		Nozzles

	Supersonic plasma flame with zero shock waves. PPI Nozzle V118 T19
	The main benefits of Plasma Processes' bell nozzle: significantly reduce overspray higher deposition efficiencies improved coating qualities reduced process cost reduced process time focused spray pattern
	Microstructure of vacuum plasma sprayed tungsten. etched 100x

Custom Designed Nozzles

Plasma Processes designs and manufactures bell-contoured, supersonic, parallel flow nozzles for thermal spray applications. These nozzles are custom designed specifically for the material used and the required flow rate.

Traditional Nozzle Design

Traditional nozzles do not ideally expand the plasma flow and produce disruptive shock waves and expansion fans in the plume. These shock waves and expansion fans allow injected particles to escape and resolidify. Bell-contoured nozzles were designed to solve this problem by ideally expanding the plasma and eliminating the disruptive flow phenomena while exhausting a collimated flow.

*U.S. Patent 5,573,682

Concentrated Energy Flow

Plasma Processes' bell-contoured thermal spray nozzles exhaust a flow which is free of the disruptive shock wave associated with standard, conical nozzles. Tests have shown that bell nozzles produce highly collimated plumes that concentrate the thermal energy of the flows and the trajectories of injected powder particles.

Cross section and housing of a bell contoured parallel flow nozzle for reducing overspray in spray processes

Nozzle Selection For Plasma Spray S/M03C,07 Guns
Material	Power	P/N
Aluminum	Low	V11923
Copper	Medium	V138T25
Nickel, SS, Cobalt	Med/High	V129T24
Refractory Metals/Ceramics	High	V118T19
Low Density Materials (Be, B, Si, etc.)	High	V121

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The main benefits of Plasma Processes' bell nozzle:

Custom Designed Nozzles

Traditional Nozzle Design

Concentrated Energy Flow

The main benefits
of Plasma Processes'
bell nozzle: