Flow Diagram 2
Fundamental Operation
In the Airbrasive machine, a controlled mass of airbrasive particles is fed into a dry air stream and discharged at high velocity to strike against(impinge) a workpiece.When the air valve(on-off switch) is in the "on" position, the system becomes pressurized.When the footwitch( used for start stop conrol of system) is depressed, the pinch valve will be opened allowing the airbrasive mixter to flow to handpiece.also when tha footwitch is pressed, the electromagnetic vibrator( energized through a pressure switch) will begin to pulsate.This motion causes the airbrasive powder in the powder chamber to be fed through an orifice plate.the powder is thus precisely fed in to the air stream and ultimately discharged at the nozzle.Flow rate of the powder is adjustable via controls that vary the voltage to the vibrator.