Cryogen shot blast deflashing system

Details Cryogen shot blast deflashing system Cryogen shot blast deflashing system

1983-10-28

1987-03-10

Parker, Roscoe V.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51423, 51425, B24C 304

Patent

active

046482148

ABSTRACT:
A cryogen shot blast deflashing apparatus includes an upstanding frame which movably supports a receptacle assembly. The receptacle assembly includes an enclosure having a housing that enshrouds a rotatable drum, and a door which selectively opens and closes an open outer end of the drum. A throwing wheel is carried on the door for discharging particulate media and cryogen gas into the drum for impacting workpieces embrittling workpiece flash. A recirculation system is provided for withdrawing cryogen gas and particulates from the drum during operation of the machine, for separating reusable particulate media from particles of waste material such as workpiece flash, and for returning a controlled flow of pressurized cryogen gas and particulate media to the throwing wheel. The recirculation system includes a blower for recirculating cryogen gas to the throwing wheel from the drum by evacuating cryogen from the drum through a return conduit, and by redelivering pressurized cryogen to the throwing wheel through a supply conduit, whereby the blower cooperates with the throwing wheel to establish the desired high velocity flow of cryogen gas through the drum. A metering device introduces a controlled flow of media into the flow of cryogen being ducted to the throwing wheel. Versatility is enhanced by providing means for adjusting the pattern of discharge, the speeds of rotation of the drum, the blower and/or the throwing wheel, the temperature and/or orientation of the treatment chamber, and/or the flow rate.

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Ultrabound Deflashing Machine of the Last Generation, published by Rutital of Varese, Italy, data unknown, total of 8 pages.

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