Home Forums General Discussion Shot Peening Process, Intensity, Coverage Catch test on glass bead

Hi,

I'm trying to perform catch tests for flow valve calibration on an equipment that uses MIL-11 (AGB-10) glass bead. This grade being very fine, I'm having problems finding a way to keep the media in the catch test container without causing restriction for the air to get out. Anyone has experience in using this media for shot peening and performing catch tests on it?

Thanks!

One solution is to feed the air/bead mixture via a side-entry tube into a large-diameter bucket with the bucket being covered in a fine-mesh cloth. A 40mm diameter entry tube slows 300m/s air from a 4mm diameter nozzle down to 3m/s. If the bucket has a diameter of 400mm then the flow of air through the mesh covering is at only 30mm per second.