RU2000859C1 - Method for ultrasonic cleaning of holes - Google Patents

Abstract

Usage: in the technology of ultrasonic cleaning of viscous soiling of the inner surface of the openings of products, pipes, open cavities. SUMMARY OF THE INVENTION: When carrying out the process of ultrasonic cleaning of holes in a washing liquid, a rod-shaped waveguide-concentrator with annular grooves on the side surface is used as an emitter operating on the forward vibrations. Before the radiator is introduced into the opening of the curing machine, the entire working end face is isolated from contact with the washing liquid. The cleaning is carried out at amplitude radiation conditions of 15-50 microns. The emitter is introduced into the hole to be cleaned with a gap relative to the walls and it is moved along the axis of the hole 1 table, 1 sludge

Description

The invention of osnogsig to technology / m fa irwosoM purification and can be found at viHji- Me pp .; Udz / 1iiii in viscous soils 1 - Fri version and open cavities of products,

, Cfiii -iU pipe heights

Rch l H MM METHODS OF ULTRASONIC EYE 1 oTbt solution for the washing liquid /. Capacity with, i;

c ... ri also converter, reb1h; 1, -tho HJ of radial vibrations Per) mI, TOC) (1 USE ONLY GFM

, -rT "-o holes of small diameter (in, g OPRP,., l Ј mm) second - applicable for

 oipnnj a certain size, ji. 1 obrejuvelln Funch; (A ,, H l j.iJHf gt 01 oscillation frequency.

The closest technical solution is H; RM g-select.chnnnm as a prototype;

1 -,. 1 the surface of the pipes at which

..mu mg. oshe fluid pipe with

.li r-i Midi LHI / lbHO C18HOK 8B (| DY1 OUT

 p iGoTaioijMiu from longitudinal oscillations, .-. n r-Tsr zyut g- | m along the axis of the pipe (:) t: idioK of the last hive method. stone trumpet consists in the dead j T1YUNPM using aoobozhnosti j. working on the longitudinal. -o..mp x In the described variant kariga-, i6 / ncu. and co jTneiCTBenHo zone och m | Omir is comfortable in front of the working end of the emitter. When this is the case, due to the hot liquid flowing around the working end of the radiator / receiver, the process is maximized due to the removal process, 1 liter and it is provided at a price i nv r flow area 1 along the axis) of the pipe and not walls, (up to focused on ip knowledge

Acquisition is aimed at increasing the HHt efficiency of removing viscous impurities B holes from the inner surfaces of various products by V-t tginim and activating the caseite C lagli, concentrating it near the walls, ultimately it will increase production warmth. quality of cleaning, which will allow iost1 to increase the life of the product.

In order to achieve the indicated result a) of the known method of ultrasonic cleaning of openings, in which an emitter operating in a longitudinal xxlx direction and an overflow emitter is inserted into the hole filled with a washing liquid with a gap against the walls of the article, ib og. and ньньрглиргли, к к ч рг из лу наг наг наг исполь исполь исполь у- ог. Mi Kanao ag.i on the side gyuver- (Auggie the surface of the central

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parts of which are preliminarily isolated from subsequent contact with a washing liquid Cl1o, and cleaning is carried out at amplitude radiation regimes of 15-50 microns.

Using a rod-shaped waveguide-hub with annular kangwitches on the lateral surface as an emitter, we create sections of the cavitation region in the region of the annular grooves (the end walls of the annular grooves perform longitudinal vibrations similar to the working end surface of the concentrator). In order to increase the efficiency of using the section of the cavitation region located in front of the working end of the concentrator, we isolate the central part of the working end from contact with the washing liquid and thereby shift the active zone of this section of the cavitation region from the center to the periphery, i.e. we bring it closer to the cleaning object - the dirty wall of the hole. Due to the presence of annular grooves on the lateral surface of the hub waveguide, in proportion to their number, the zone of influence of the cavitation region on the surface of the hole being cleaned increases and the productivity and quality of cleaning increase. The operation of the concentrator waveguide at the amplitude radiation regimes of 15-50 microns makes it possible to create a developed region both in front of the working end and in the region of the annular grooves, along the lateral surface of the concentrator waveguide, which in turn contributes to an increase in the intensity of the cleaning process. The amplitude of the vibrational displacements on the end surfaces of the annular grooves is not the same; it gradually decreases as the distance from the working end of the waveguide-hub and closer to the node of the vibrational displacements. For the cleaning process to take an active part in more end surfaces of the annular grooves, it is necessary to use the amplitude mode of radiation of the waveguide-concentrator, estimated from the amplitude of the vibrational displacements at the working end, to keep the radiation level as low as possible, when the effective work of most of the end surfaces of the annular grooves is a value of the order of 15 μm. At an amplitude mode below 15 μm, a decrease in cleaning efficiency is observed due to the absence of active cavitation. The upper limit of the amplitude mode of emission is limited to 50 microns. since exceeding it leads to foaming of the washing liquid and the cleaning effect almost completely disappears

Known sources used to determine the state of the art do not describe the totality of the claimed features and are not obvious. Based on this, we can conclude that. what is the claimed proposal meets the criteria of the invention, because it is new, inventive, and industrially applicable.

The drawing shows a diagram of the implementation of the proposed method for ultrasonic cleaning of holes of products. A rod wave concentrator 3. is introduced with a gap relative to the walls of the product into the hole to be cleaned 1 of the product 2, with a groove 4 made on its lateral surface, and the central part of the working end of the concentrator 3 is insulated with a rubber pad 5 from the contact before cleaning with washing liquid. Upon excitation in the waveguide-hub 3 of longitudinal vibrations having an amplitude of displacements at the working end of 15-50 μm, in front of the unprotected rubber patch, part of the end face of the concentrator 3 and in the region of the location of the annular grooves 4, along the lateral surface of the concentrator, a cavitation region 6 is developed. knowledge from the walls of the hole occurs simultaneously in front of the working end of the waveguide-hub, and in the locations of the annular grooves. During the cleaning process, the core waveguide-concentrator 3 is gradually moved along the hole.

The proposed ultrasonic cleaning method was verified by removing viscous dirt from a square hole of a product measuring 30x30 mm and a depth of 50 mm. A layer of 1 mm thick TsIATIM-201 grease was applied to one side of the inner surface of the article in the hole. Purification was carried out in an aqueous solution of trisodium phosphate with a substance concentration of 30 g / l at a solution temperature of 40 ° C. The emitter is a half-wave

rod-shaped cylindrical waveguide-hub with a diameter of 20 mm. The longitudinal vibrations in it were excited by a 1.6 kW rod oscillation system (frequency 22 kHz). There were 5 ring grooves 5 mm wide and 3 mm deep on the lateral surface of the waveguide hub. A distance of 5 mm is between the annular grooves, as well as the working end face of the concentrator and the annular groove closest to it. A rubber pad with a thickness of 8 mm and a diameter of 14 mm is glued in the center of the working end of the concentrator. Amplitude of vibrational displacements at the working end

concentrator ranged from 15 to 50 microns. The minimum gap between the side surface of the waveguide hub and the contaminated side of the hole is 1 mm. During cleaning, a waveguide-concentrator was introduced to the entire depth of the hole.

On the effective in the proposed method of ultrasonic cleaning of holes in front of the prototype can be judged by the data of their comparative tests when removing

grease from a square hole. In both cases, the diameter of the emitter, the amplitude treatment regimes, and other conditions of the ultrasonic cleaning process were the same. The effectiveness of the cleaning process was evaluated by the amount of time spent completely removing grease from the hole. The data obtained are given in the table.

Test Results Comparison

shows that cleaning the holes of the proposed method is more effective than the prototype method, the intensity of the decontamination process is increased by 5 times.

(56) Physical foundations of ultrasound technology / Edited by L.D. Rosenberg. - M .: Nauka, 1970-S.248.

USSR copyright certificate

D 488977, cl. B 08 B 9/04, 1975.

USSR author's certificate N 1147459, cl. 08 V 3/12. 1985.

Table continuation

Claims (1)

The claims  Km) b ULTRASONIC HOLE OPENING with a donor into a filled washing liquid, a hole with a gap relative to MI if there is an emitter working low frequency i i 1 there is no oscillation and move it along the axis of the hole, which is different, and the quality of lmtel use Direction of travel ich.uca1el a rod-shaped waveguide-concentrator with annular grooves on the side surface, the end surface of the central part of which is previously isolated from subsequent contact with a washing liquid, and cleaning is carried out at an amplitude radiation mode of 15-50 μm