Title:
METHOD FOR BEAD-BLASTING PROCESSING AND DEVICE FOR CARRYING OUT SAID METHOD
Document Type and Number:
WIPO Patent Application WO/2004/101224
Kind Code:
A1
Abstract:
The invention relates to gas-abrasive processing and can be used for cleaning building structures and technological equipment with the aid of a two-component jet. Said jet is formed by acoustical action, oscillation of a material socket and by increasing a pressure difference at gas input and the output thereof. The inventive method consists in accelerating abrasive particles by an accelerator in a channel whose length ranges from 30 to 120 diameters thereof and in directing said particles at an angle of 15-45° with respect to a processed surface at a distance from the nozzle ranging from 35 to 95 diameters. A desired ratio between dispersed and dispersing media is maintained with the aid of a self-adjusting pneumatic system by increasing oscillation and reducing gas-flow rate in the jet supplied to the material socket. The inventive device for carrying out said method for bead-blasting processing comprises a nozzle, a reservoir provided with a dosing unit which are connected to each other by a transport pipe and to a pressure gas source by means of a gas conduit. Said nozzle is embodied in the form of a channel whose length ranges from 30 to 120 diameters thereof. Said dosing unit comprises a wideband acoustical oscillator, a multi-circuit vibration exciter provided with an ejector, an activator and a centrifugal moisture separator.
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Inventors:
ANISCHENKO ANDREY VASILIEVICH (RU)
GALCHENKO NICOLAI ALEKSEEVICH (UA)
GALCHENKO NICOLAI ALEKSEEVICH (UA)
Application Number:
PCT/RU2004/000185
Publication Date:
November 25, 2004
Filing Date:
May 14, 2004
Export Citation:
Assignee:
ANISCHENKO ANDREY VASILIEVICH (RU)
GALCHENKO NICOLAI ALEKSEEVICH (UA)
GALCHENKO NICOLAI ALEKSEEVICH (UA)
International Classes:
B24C1/00; B24C3/02; B24C5/08; B24C7/00; (IPC1-7): B24C1/00; B24C3/02
Foreign References:
| US5433653A | 1995-07-18 | |||
| US5556325A | 1996-09-17 | |||
| SU1650409A1 | 1991-05-23 |
Other References:
See also references of EP 1652621A4
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