DEVICE FOR ABRASIVE-JET MACHINING OF PART SURFACES Russian patent published in 2003 - IPC

FIELD: abrasive-jet machining of surfaces of various products from ferrous, nonferrous and nonmetallic alloys; applicable in machining of surfaces of all-metal cast products in form of tooth crowns and clasp dental prostheses prior to application of ceramic coatings to them. SUBSTANCE: device has vessel for abrasive with hole for passage of abrasive-air mixture, nozzle and pipeline. Device is provided with vessel electric heaters secured from outside to vessel bottom and connected to nozzle by throttle whose cavity accommodates filter. Installed in vessel is tube whose upper end has hole for passage of abrasive-air mixture. Said hole is located above level of abrasive in vessel. Tube lower end is located in vessel bottom hole and connected with throttle. EFFECT: minimal consumption of abrasive material and efficient regulation of abrasive concentration in air medium. 1 dwg