STD-TE 68 GAS JET EROSION RIG

Standard Performance

The velocity of the particles is determined by the air pressure and length of nozzle. A wide range of velocities is covered from 25 to 80 m/s and a feed rate of 0.2 to 2 g/minute.

Enhanced Performance

By enclosing the particle feed assembly in a small chamber and applying a pressure of up to 4 bar, the particle velocity can be increased from a nominal maximum of 80 m/s to 120 m/s. The pressure differential between the mixing chamber and the nozzle discharge remains approximately 1 bar, indicating a pressure drop of 3 bar between the particle feed chamber and venturi injector.

A definitive investigation of the relationship between the pressure differentials between the feed assembly chamber, the mixing chamber, the injector upstream pressure and the nozzle discharge pressure and the resulting particle flow rate has yet to be completed. However, the addition of the feed chamber, which is now fitted as standard, does produce a measurable increase in particle velocity under certain user adjusted test conditions.

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