EP1183133A1 - Jet spray tool and device containing a jet spray tool - Google Patents
Jet spray tool and device containing a jet spray toolInfo
- Publication number
- EP1183133A1 EP1183133A1 EP00940351A EP00940351A EP1183133A1 EP 1183133 A1 EP1183133 A1 EP 1183133A1 EP 00940351 A EP00940351 A EP 00940351A EP 00940351 A EP00940351 A EP 00940351A EP 1183133 A1 EP1183133 A1 EP 1183133A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- tool
- jet
- blasting
- cleaning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/086—Descaling; Removing coating films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
Definitions
- the present invention relates to a blasting tool and a device for treatment, in particular for cleaning surfaces using a CO 2 snow jet.
- Such blasting tools and devices are used in the optical industry, medical technology, the pharmaceutical industry, painting technology, micro and precision engineering for the treatment of surfaces, including the treatment of soft surface coatings, gels and the like.
- the basis of this treatment or cleaning process is cleaning using CO 2 ice crystals.
- the process is also used for the dry local cleaning of particulate and filmic contamination from structured surfaces and surfaces composed of elements of different materials down to the submicrometer range.
- the progressive miniaturization with simultaneous hybridization of assemblies requires a cleaning process that allows a local cleaning of functional surfaces without contaminating adjacent areas through cross-contamination.
- the use of conventional cleaning methods such as ultrasound or the use of aggressive chemicals is only rarely possible due to material incompatibility. Radiance with C0 2 -
- the C0 2 -E ⁇ sre ⁇ n ⁇ gung is a dry, deep cold, residue-free blasting process with a wide range of applications.
- the dry ice blasting can be divided into two different methods - cleaning with airborne dry ice pellets and cleaning with CO 2 snow.
- Dry ice pellet blasting has been used since 1987 to strip paint and clean aircraft components and aircraft. Mainly due to the property of dry ice to sublime during the cleaning process and thus not to leave any contaminated cleaning agent behind, parts could be cleaned in the installed state and the cleaning costs on aircraft could be reduced by up to 50%.
- a disadvantage of the blasting technique using dry ice pellets is that the cooling during and after cleaning causes recontamination of the surface by precipitation of substances previously contained in the air and remaining during the drying of the CO 2 ice film.
- the ambient moisture is reflected on the cooled surface following the radiation, so that the object to be cleaned becomes damp.
- dry ice crystals can also be used as a blasting medium instead of dry ice pellets. In this case, a jet of CO 2 snow is generated, which is blasted onto the surface to be cleaned at high speed.
- a heated plate is used as a base for the items to be cleaned, in order to reheat the items to be cleaned as quickly as possible after they have been swept over by the dry ice jet.
- the effectiveness of this method as an individual measure is sometimes severely impaired or not given at all by the material, the geometry and the size of the items to be cleaned.
- the C0 2 - snow beam are surrounded by an enveloping beam that is heated.
- snow crystals have a significantly lower impulse than dry ice pellets with a diameter of several millimeters, so that the cleaning effect is lower than that of dry ice pellets is significantly lower.
- US Pat. No. 5,725,154 proposes generating an inductive magnetic field in order to compensate for the charging of the liquid CO 2 flowing in. The ionization that occurs as a result of charge separation during the expansion of the C0 2 and the crystallization of the C0 2 snow is not compensated.
- Object of the present invention is a
- a very high jet speed is achieved by using a Laval nozzle, so that the very small ice crystals are sprayed through the to Gas cushions forming on the cleaning surface can be shot.
- the static charge of the solid carbon dioxide snow which represents a problem when cleaning electronic components, is eliminated by means of the ionization device.
- a laminar flow is generated in the cleaning chamber by the nozzle and by the arrangement of the cleaning device according to the invention, so that no pockets of dirt are formed inside the cleaning system.
- the beam diameter is extremely small, so that it is suitable for use in microsystems and precision engineering and the system can be used flexibly in the production of microsystems.
- the blasting tool is fully mobile and the cleaning process can easily be automated. The overall result is a high level of efficiency with a short cleaning time.
- the suction device according to the invention advantageously collects the radiated, subli ated CO 2 and the high-volume support or pressure jet, which flows off the sample table without further deflection, and then sucks it off from there, thereby reliably minimizing cross-contamination of other surface areas.
- the suction device according to the invention also does not generate any vortices or the like outside of the suction device itself, so that the laminar flow of the incoming air is not disturbed and its purity is reliably maintained.
- FIG. 2 shows a device according to the invention
- 3 shows a blasting tool according to the invention
- FIG. 4 shows a suction device according to the invention
- FIG. 5 shows a section through the suction device according to the invention according to FIG. 4;
- a surface of an object is irradiated with CO ice crystals (CO 2 - snow) 3 from a spray nozzle 2.
- CO 2 - snow forms a C0 2 beam 5, which radiates an impurity 4 from the surface of the object 1.
- There are two mechanisms of action With a mechanism of action is described in which a C0 2 - crystal 3 hits the surface of the object 1 and the impurity 4 blasts off.
- Another mechanism is described with b, in which the CO 2 snow crystal impinges on the surface of the object 1 and sublimates there. During this sublimation, the impurity 4 is released from the surface of the object 1 by the gas pressure and is carried along by the outflowing CO 2 .
- Fig. 2 shows a device according to the invention for treating, in particular for blasting Surfaces.
- This device has a cleaning chamber 36, in which a sample table 1 and a jet tool 2 are arranged for generating a CO 2 snow jet 5 and laminar air flows around it.
- the gas jet 5 from the jet tool 2 which is usually aligned perpendicularly to the sample carrier 1, is deflected by 90° on the mostly flat cleaning objects or on the sample table 1 itself and flows radially from the point of impact and parallel to the sample table 1. Due to the high flow speed and the resulting gas volume, it is not possible to suck off the detached material locally at the point of action.
- the process gases are therefore extracted outside of the sample table 1 by means of the flow trap 21, which is arranged laterally to the sample table 1 in the plane of its surface and completely surrounding the sample table. This flow trap 21 catches the surface flow 35 outflowing CO 2 , which is generated by the CO 2 snow jet 5 on the surface of the sample table 1, on the side.
- the sample table 1 can be moved in all three dimensions, can be heated via a heater 22 and is connected to a vacuum line from below via a valve 24 and a vacuum connection 23 .
- the sample table 1 consists of a metal perforated plate so that objects to be blasted can be fixed on the surface of the sample table 1 by means of this negative pressure.
- em controller 25 for the Heater 22 of the sample table 1 provided to bring it to a constant temperature.
- a laminar flow 6 is generated in the sample chamber, which flows along the walls 36 of the cleaning chamber and in the direction of the CO 2 snow jet 5 .
- the jet tool 2 is supplied via a cooler 26, a filter 27 and a high-pressure valve 28 liquid C0 2 from a C0 2 container 34.
- gaseous N 2 from an N 2 container 33 is supplied to the jet device 2 via a fitting with a pressure reducer 32 , a high-pressure valve 30 and a further valve 31 .
- the two high-pressure valves 28 and 30 are connected to a controller 29 .
- the core of the described device according to the invention thus consists of the following components:
- a cleaning chamber 36 through which ultrapure air flows e.g. cleanliness class 1 according to VDI 2083 sheet 1, flow rate 0.4 m/s
- This device generates a low-bulence clean air flow in the cleaning chamber 36, which is directed so that the blasting tool 2 is in front of the sample table 1 and the sample table 1 is flown against perpendicularly.
- uncontrollable contamination from the air caused by the injection effect of the cleaning jet is therefore avoided. At the same time, this prevents accumulations of dirt from forming in the area of the entire system over time.
- the blasting tool 2 essentially consists of two nozzles that are integrated into one another:
- the first nozzle is a capillary through which the carbon dioxide liquefied under high pressure is conducted.
- the liquid carbon dioxide exits at the conically widened end of the capillary, with about 55% of the mass evaporating through expansion and about 45% solidifying through resublimation into small crystals, into the C0 2 ice snow.
- the amount of outflowing C0 2 can be adjusted by varying and the capillary diameter.
- the jet tool 2 has a second nozzle which concentrically encloses the first nozzle and the capillary.
- This second nozzle is a Laval nozzle that ejects supersonic, dry pressurized gas (N 2 ) at room temperature. This pressurized gas supports the jet of dry ice snow, bundles it into a parallel jet and accelerates it.
- This pressure or support jet can be started or ended with a time delay to the C0 2 snow jet, so that when the C0 2 snow jet is switched on after the start of the compressed gas jet, the ambient air kept away from the cleaning point. This successfully prevents the condensation of humidity at the cleaning point cooled by the cleaning jet.
- the supporting jet can only be switched off after the C0 2 snow jet.
- the support jet of dry compressed gas also means that the substrate surface is quickly reheated at the cleaning point after cleaning has taken place.
- FIG. 3 shows a cross section through a blasting tool according to the invention, which will now be described in more detail.
- the jet tool consists essentially of two nozzles that are integrated into one another: A capillary 42 through which the liquefied CO 2 is passed under high pressure and at the end 49 of which the CO 2 expands conically. This creates a mixture of gas and dry ice snow. The proportion of snow is about 45% of the total mass escaping. The amount of outflowing C0 2 can be adjusted by varying the diameter of the capillary 42.
- the capillary 42 is surrounded concentrically by a special Laval nozzle 51 from which dry compressed gas is supplied via a line 56
- This jet of compressed gas bundles the steel made of dry ice snow into a parallel jet and accelerates it.
- this compressed gas support jet keeps the ambient air away from the cleaning point and the substrate surface heated up again very quickly after cleaning. The condensation of humidity is thus successfully prevented.
- the Laval nozzle 51 is formed by the outer contour of a nozzle needle 45 which contains the capillary 42 and by the inner contour of a nozzle head 46 .
- the Laval nozzle 51 can be finely adjusted and set optimally by changing the minimum cross section by moving the nozzle needle 45 relative to the nozzle head 46 . It is then fixed by placing suitable spacers between a flange 43 arranged on the nozzle needle 45 and the nozzle head 46.
- Both the liquid C0 2 and the compressed gas is supplied via the nozzle needle 45.
- the compressed gas then flows for calming purposes via four star-shaped bores arranged on the Laval nozzle 51 on the outlet side into the antechamber of the Laval nozzle 51.
- the compressed gas flows out of the Laval nozzle with a clear overview, without twisting and symmetrically.
- the CO: is supplied via the capillary 42, which is guided in the channel of the nozzle needle 45.
- a plug 48 at the lower end of the nozzle needle 45 centers the capillary 42 and at the same time seals the compressed gas channel from below.
- At the upper end of the compressed gas channel is closed by the CO 2 -Le ⁇ tung 40 and its screw 41.
- the two nozzles, the Laval nozzle 41 and the snow nozzle 49 formed at the end of the capillary 42 are arranged in such a way that the supporting gas only current jet of dry ice snow is mixed in. Otherwise the function of the blasting tool would not be guaranteed.
- the entire system is sealed by two seals, namely a packing 44 with a flange 43 and a thin metal foil between the nozzle head 46 and a connection plate 55.
- a metal ring 50 with three ionization tips is attached, isolated by an insulator 47, which is connected via a high-voltage cable 53 to an adjustable ionizer.
- an adjustable ionizer is connected to an adjustable ionizer.
- the strong negative charge of the CO 2 beam is compensated for the crystallization of the CO 2 at the exit of the capillary 42 by continuous deionization.
- the capillary 42 is grounded by means of a ground cable, so that the charge separation m the
- suction device 21 The suction of the material detached by the dry ice jet directly at the point of action is not possible with a conventional suction device due to the high flow speed and the resulting gas volume. Therefore, a suction device 21 according to the invention was used.
- FIG. 4 shows a cross section through the plane of the sample table 1.
- the sample table 1 is completely surrounded by a suction pipe 65 of the suction device 21 in the plane of the sample table 1.
- FIG. The gas jet 5, which is usually aligned perpendicularly to the sample carrier, is directed at the mostly flat cleaning objects or at the
- the sample table itself is deflected by 90° and flows radially from the impact point on the surface of the object or the sample table as a laminar flow 35.
- the suction pipe 65 has a kidney-shaped cross section with indentations in the plane of the sample table 1.
- this indentation is opened as a gas outlet opening.
- the gas 35 flowing out of the sample table 1 consequently hits the inner wall of the suction ring 65 and is deflected upwards or downwards, supported by the central kink 66 due to the kidney-shaped constriction in the plane of the sample table 1 .
- the process gas 35 compressed gas, CO 2 gas, removed particles 4
- the process gas 35 flowing off the sample table 1 at high speed is transferred to a twist flow 63 flowing to the corners of the suction ring 65.
- Fans 61 are located in the corners of suction ring 65 and are connected to suction ring 65 via suction openings 64 m. These fans generate a suction volume flow via a suction channel 60, which supports the flow of this jet flow and prevents em backflow to the sample carrier.
- the openings 64 between the suction ring 65 and the suction channel 60 are located above and below the central bend 66, so that the vortices 63 formed are sucked off.
- the extraction volume of the fans 61 is constantly adjusted to the sum of the laminar supply air gas flow 6 (see FIG. 2) and the cleaning gas flow 5 via a speed controller.
- the supply air flow is determined via the Free cross-sectional area of the suction ring 65 and the supply air speed (speed of the pure gas flow 6).
- the cleaning gas flow 5 is calculated essentially based on the diameter of the capillary 42 of the CO 2 supply, the geometry of the Laval nozzle 51 and the form of the pressure/support gas in a conventional manner.
- the extracted gas is then blown by the fans 61 to a process exhaust air system 62, where the extracted air can be cleaned, processed and/or used further.
- the C0 2 - supply is designed so that short C0 2 jet shocks can be generated. These are much more effective compared to a continuous CO 2 jet, since higher thermal voltages are generated here compared to the longer exposure time of the dry ice jet.
- FIG. 6 shows an example of cleaning with the device according to the invention. Above are encrusted nozzles of an ink jet print head which have been cleaned according to the invention. In the lower part of The figure shows a microchip on a ceramic carrier whose scaling can be seen on the right-hand side. The cleaned area can be seen on the left side of this picture.
- FIG. 7 shows a lacquer layer that was treated with the device according to the invention.
- the representation in FIG. 7 is magnified 50 times.
- the paint layer has been partially removed using the method according to the invention.
- the formation of cracks and the blasting off of the base material can be clearly seen.
- Jet tool (2) according to the preceding claim, characterized in that the second nozzle is a Laval nozzle (51).
- Jet tool (2) according to one of the preceding claims, characterized in that the second nozzle (51) is designed so that it bundles the jet of the first nozzle, preferably parallel b ndelt, and / or accelerated.
- blasting tool (2) according to any one of the preceding claims, characterized in that the first nozzle (49) is connected to a capillary (42) as a supply line.
- blasting tool (2) according to the preceding claim, characterized in that the capillary re (42) is electrically grounded.
- the blasting tool (2) according to any one of the preceding claims, characterized in that the blasting tool (2) has a nozzle needle (45) and a nozzle head (46) surrounding it, the first nozzle (49) being arranged in the nozzle needle (45). is.
- blasting tool (2) according to the preceding claim, characterized in that the second nozzle (51) as a space between nozzle needle
- jet tool (2) according to the preceding claim, characterized in that the contour of the second nozzle (51) through the outer contour of
- Nozzle needle (45) and/or is formed by the inner contour of the nozzle head (46).
- jet tool (2) according to any one of claims 8 to 10, characterized in that the nozzle needle (45) along the nozzle head (46) is displaceable
- jet tool (2) according to any one of claims 7 to 11, characterized in that at the bottom
- a device for supporting and centering the nozzle needle (45) m the nozzle head (46) is arranged.
- blasting tool (2) according to any one of the preceding claims, characterized in that the two te nozzle (51) has at its inlet several star-shaped holes for gas supply.
- blasting tool (2) according to any one of the preceding claims, characterized in that in
- Jet direction behind the first nozzle (49) a device (50) for deionization of the Co 2 - snow jet is arranged.
- the blasting tool (2) according to the preceding claim, characterized in that the device (50) for deionization has a metal ring concentric with the first nozzle (49).
- Beam tool (2) according to the preceding claim characterized in that the metal ring has at least one ionization tip projecting into the beam area.
- Beam tool (2) according to any one of claims 14 to 16, characterized in that the device (50) for deionization via a high-voltage cable (53) is connected to an ionizer.
- a device for treating, for example for cleaning, the surface of an object (1) for example a workpiece or a sample table, characterized by blasting the surface with C0 2 snow by a blasting tool (2) for generating a beam les from C0 2 snow according to any one of the preceding claims.
- sample table (1) is electrically heatable.
- Device according to one of claims 21 to 27, characterized in that the object is arranged in the cleaning chamber (36) in such a way that its surface is subjected to a perpendicular flow of the ultra-pure air (6).
- Remistr (36) arranged suction device (21) for sucking air from the surface of the object (1), with a suction tube (65) m the surface level of the object (1) completely surrounds and along its inner circumference
- suction pipe (65) has a kidney-shaped cross-section with an indentation along its outer circumference.
- Device according to one of Claims 29 to 41, characterized in that a treatment plant for extracted air and any particles contained therein is provided.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19926119 | 1999-06-08 | ||
DE19926119A DE19926119C2 (en) | 1999-06-08 | 1999-06-08 | Blasting tool |
PCT/EP2000/005323 WO2000074897A1 (en) | 1999-06-08 | 2000-06-08 | Jet spray tool and device containing a jet spray tool |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1183133A1 true EP1183133A1 (en) | 2002-03-06 |
EP1183133B1 EP1183133B1 (en) | 2004-09-01 |
Family
ID=7910562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00940351A Expired - Lifetime EP1183133B1 (en) | 1999-06-08 | 2000-06-08 | Jet spray tool and device containing a jet spray tool |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1183133B1 (en) |
AT (1) | ATE275024T1 (en) |
AU (1) | AU5531300A (en) |
DE (1) | DE19926119C2 (en) |
WO (1) | WO2000074897A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3763481A1 (en) * | 2019-07-10 | 2021-01-13 | ACP Systems AG | Method for creating a co2 snow jet |
EP3822023A1 (en) * | 2019-11-15 | 2021-05-19 | Egger PowAir Cleaning GmbH | Device for dry ice treatment of surfaces and method for treating surfaces |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10243693B3 (en) * | 2002-09-20 | 2004-04-01 | Jens Werner Kipp | Process for cleaning electronic circuit boards comprises feeding a carrier gas under pressure through a jet line to a jet nozzle, introducing liquid carbon dioxide via a feed line, converting into dry snow, and injecting into the jet line |
WO2004033154A1 (en) | 2002-09-20 | 2004-04-22 | Jens Werner Kipp | Method and device for jet cleaning |
DE10356141B4 (en) * | 2003-12-02 | 2008-12-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Device and method for detaching and removing filling material from a channel with the aid of solids |
DE102004018133B3 (en) * | 2004-04-08 | 2005-08-25 | Frenzel-Bau Gmbh & Co. Kg | Dry ice beam arrangement e.g. for cleaning of surfaces, has source for liquid CO2, nozzle jet with nozzle exit opening for dry ice particle jet as well as line for transfer of CO2 of source to nozzle jet |
DE102004047050B3 (en) * | 2004-09-28 | 2005-12-15 | Venjakob Maschinenbau Gmbh & Co. Kg | Cleaning method for workpiece to be lacquered using CO2 snow, using core jet of CO2 snow surrounded by outer jet of compressed air at lower speed |
DE102005002365B3 (en) * | 2005-01-18 | 2006-04-13 | Air Liquide Gmbh | Jet process for surface cleaning involves expanding carbon dioxide in the mixing region into carrier gas at static pressure less than 70 per cent of overall pressure |
DE102005005638B3 (en) | 2005-02-05 | 2006-02-09 | Cryosnow Gmbh | Method for cleaning, activating or treating workpieces using carbon dioxide snow streams comprises adding a carbon dioxide mixture via a nozzle opening of a mixing chamber into which a central gas stream and further processing |
DE102005054246C5 (en) * | 2005-11-15 | 2011-08-18 | MESSER Group GmbH, 65843 | Apparatus and method for irradiating a surface with dry ice particles |
DE102006016314B3 (en) * | 2006-04-06 | 2007-09-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Jet spray tool for the production of a jet of carbon dioxide snow for dry cleaning of tube cavity, has hose-shaped shaft, carbon dioxide jet nozzle and inlet line for carbon dioxide, which is attached to the nozzle and runs along the shaft |
DE102007014857A1 (en) | 2007-03-22 | 2008-09-25 | Acp-Advanced Clean Production Gmbh | Nozzle e.g. for pre-treatment and cleaning of surfaces using carbon dioxide snow, has propellant flow provided over supply nozzle and with chamber and which crosses into expanded outlet |
DE102007018338B4 (en) | 2007-04-13 | 2010-09-23 | Technische Universität Berlin | Apparatus and method for particle blasting using frozen gas particles |
DE102007046791B3 (en) * | 2007-09-29 | 2008-06-19 | Messer Group Gmbh | Device for producing a stream of dry ice particles comprises a unit for super-cooling liquid carbon dioxide with a compression refrigerating machine for withdrawing heat from the liquid carbon dioxide |
DE102007052390B4 (en) * | 2007-10-31 | 2021-01-28 | Air Liquide Deutschland Gmbh | Method and device for cleaning surfaces |
DE102008007531A1 (en) * | 2008-02-05 | 2009-08-06 | Manroland Ag | Apparatus for cleaning rewritable printing plate, has nozzle for spraying dry ice snow onto surface of printing plate, to remove contaminants from plate |
DE102008061352A1 (en) | 2008-12-10 | 2010-06-17 | Linde Aktiengesellschaft | Method for producing cryogenic particle beam utilized for cooling or cleaning surface of work piece, involves adding particle stream to compressed gas stream at downstream position |
DE102010064406A1 (en) | 2010-12-30 | 2012-07-05 | ipal Gesellschaft für Patentverwertung Berlin mbH | Apparatus and method for particle blasting using frozen gas particles |
DE102011004724A1 (en) | 2011-02-25 | 2012-08-30 | Robert Bosch Gmbh | Binary fuel nozzle for use with cleaning chamber of injector for injecting fuel into combustion chamber of internal combustion engine, is provided with nozzle body and inlet for supply of gaseous medium |
DE102012006567A1 (en) * | 2012-03-30 | 2013-10-02 | Dürr Systems GmbH | Dry ice cleaning device for a paint shop |
FR2997332B1 (en) * | 2012-10-30 | 2015-01-02 | Air Liquide | CARBON ICE PROJECTION DEVICE FOR CLEANING ELECTRONIC CARDS |
WO2014131771A1 (en) | 2013-02-26 | 2014-09-04 | Robert Veit | Device and method for particle blasting by means of frozen gas particles |
DE102015009676A1 (en) | 2015-07-25 | 2017-01-26 | Messer Group Gmbh | Process for treating surfaces with a dry ice blasting abrasive |
DE102015219430A1 (en) | 2015-10-07 | 2017-04-13 | Bayerische Motoren Werke Aktiengesellschaft | Device for cleaning adhesive surfaces |
DE102015219429A1 (en) | 2015-10-07 | 2017-04-13 | Bayerische Motoren Werke Aktiengesellschaft | Process for cleaning with solid carbon dioxide |
DE102018208750A1 (en) * | 2018-06-04 | 2019-12-05 | Bausch + Ströbel Maschinenfabrik Ilshofen GmbH + Co. KG | Method and device for cleaning machines in pharmaceutical plants |
DE102019108289A1 (en) | 2019-03-29 | 2020-10-01 | acp systems AG | Device for generating a CO2 snow jet |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0349224A (en) * | 1989-07-17 | 1991-03-04 | Mitsubishi Electric Corp | Treating method for substrate |
US5125979A (en) * | 1990-07-02 | 1992-06-30 | Xerox Corporation | Carbon dioxide snow agglomeration and acceleration |
US5512106A (en) * | 1993-01-27 | 1996-04-30 | Sumitomo Heavy Industries, Ltd. | Surface cleaning with argon |
US5364472A (en) * | 1993-07-21 | 1994-11-15 | At&T Bell Laboratories | Probemat cleaning system using CO2 pellets |
US5421766A (en) * | 1993-12-06 | 1995-06-06 | Church & Dwight Co., Inc. | Blast nozzle for preventing the accumulation of static electric charge during blast cleaning operations |
US5733174A (en) * | 1994-01-07 | 1998-03-31 | Lockheed Idaho Technologies Company | Method and apparatus for cutting, abrading, and drilling with sublimable particles and vaporous liquids |
US5779523A (en) * | 1994-03-01 | 1998-07-14 | Job Industies, Ltd. | Apparatus for and method for accelerating fluidized particulate matter |
US5725154A (en) * | 1995-08-18 | 1998-03-10 | Jackson; David P. | Dense fluid spray cleaning method and apparatus |
US5837064A (en) * | 1996-10-04 | 1998-11-17 | Eco-Snow Systems, Inc. | Electrostatic discharge protection of static sensitive devices cleaned with carbon dioxide spray |
JP3315611B2 (en) * | 1996-12-02 | 2002-08-19 | 三菱電機株式会社 | Two-fluid jet nozzle for cleaning, cleaning device, and semiconductor device |
FR2764215B1 (en) * | 1997-06-04 | 1999-07-16 | Carboxyque Francaise | LANCE AND APPARATUS FOR PRODUCING A LIQUID C02 JET, AND ITS APPLICATION TO A SURFACE CLEANING INSTALLATION |
-
1999
- 1999-06-08 DE DE19926119A patent/DE19926119C2/en not_active Expired - Lifetime
-
2000
- 2000-06-08 AU AU55313/00A patent/AU5531300A/en not_active Abandoned
- 2000-06-08 EP EP00940351A patent/EP1183133B1/en not_active Expired - Lifetime
- 2000-06-08 AT AT00940351T patent/ATE275024T1/en active
- 2000-06-08 WO PCT/EP2000/005323 patent/WO2000074897A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO0074897A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3763481A1 (en) * | 2019-07-10 | 2021-01-13 | ACP Systems AG | Method for creating a co2 snow jet |
EP3822023A1 (en) * | 2019-11-15 | 2021-05-19 | Egger PowAir Cleaning GmbH | Device for dry ice treatment of surfaces and method for treating surfaces |
WO2021094363A1 (en) * | 2019-11-15 | 2021-05-20 | Egger Powair Cleaning Gmbh | Device for the dry ice treatment of surfaces and method for treating surfaces |
Also Published As
Publication number | Publication date |
---|---|
AU5531300A (en) | 2000-12-28 |
ATE275024T1 (en) | 2004-09-15 |
DE19926119C2 (en) | 2001-06-07 |
WO2000074897A9 (en) | 2002-09-06 |
EP1183133B1 (en) | 2004-09-01 |
DE19926119A1 (en) | 2000-12-21 |
WO2000074897A1 (en) | 2000-12-14 |
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