EP1034889A2 - Method and device for blasting with a blasting medium at a reduced temperature - Google Patents

Method and device for blasting with a blasting medium at a reduced temperature Download PDF

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Publication number
EP1034889A2
EP1034889A2 EP00104374A EP00104374A EP1034889A2 EP 1034889 A2 EP1034889 A2 EP 1034889A2 EP 00104374 A EP00104374 A EP 00104374A EP 00104374 A EP00104374 A EP 00104374A EP 1034889 A2 EP1034889 A2 EP 1034889A2
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EP
European Patent Office
Prior art keywords
blasting
conveying gas
gas stream
workpiece
liquefied gases
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.)
Withdrawn
Application number
EP00104374A
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German (de)
French (fr)
Other versions
EP1034889A3 (en
Inventor
Serex Jean-Pierre
Saxer Ing.- Htl Joseph
Schiffbauer Dipl-Ing.(FH) Reiner
Buingerdipl.Phys. Alexander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde Gas AG
Linde Technische Gase GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Linde Gas AG, Linde Technische Gase GmbH filed Critical Linde Gas AG
Publication of EP1034889A2 publication Critical patent/EP1034889A2/en
Publication of EP1034889A3 publication Critical patent/EP1034889A3/en
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material

Definitions

  • the invention relates to a method for irradiating a workpiece with under Normal conditions in a solid state of abrasive, the Blasting agent dosed into a conveying gas stream in a blasting system, with the feed gas stream conveyed to a blasting device and onto the workpiece to be machined be blasted.
  • the invention further relates to a device for irradiating a Workpiece with a solid state under normal conditions Blasting media comprising a blasting system with means for metering in the blasting media into a conveying gas stream, a blasting hose that runs from the blasting system to a Blasting device leads from which the blasting agent onto the workpiece to be machined be blasted.
  • Abrasives have been known for a long time and are used for numerous applications used. Blasting with these conventional abrasives shows usually a much higher abrasiveness than exposure to some Time also known abrasives, which are present in fluid form under normal conditions such as dry ice.
  • Conventional abrasives include for example quartz sand (sandblasting), but also steel gravel, hard cusk gravel, Grain of wire, corundum or other inorganic or organic abrasives or Plant-based abrasives.
  • the present invention is therefore based on the object of a method and a Show device of the type mentioned, which an effective dust binding show in a simple way.
  • This object is achieved in that the feed gas stream is cooled and dust-binding condensate droplets in the jet directed towards the workpiece be generated.
  • the feed gas stream is cooled by adding liquefied gases.
  • liquefied gases is understood to mean a liquefied gas or a mixture of several liquefied gases.
  • all suitable gases can be used for the invention.
  • Liquefied nitrogen (LIN), liquefied carbon dioxide (LCO 2 ) or liquefied synthetic air are used with advantage.
  • the use of liquefied synthetic air enables treatment even in heavy rooms without heavy breathing protection (e.g. filter protection is sufficient).
  • the cooling can not (yet) by adding liquefied gases in the blasting media carrying gas flow.
  • liquefied gas in a partial stream of the conveying gas stream can be fed.
  • a partial stream of the conveying gas stream can be bypassed be guided around the blasting system, with the feed of liquefied gases in this bypass partial flow takes place.
  • the cooling can be done by adding liquefied gas to the already Blasting media carrying conveying gas flow.
  • Addition of the liquefied gases takes place within the blasting device.
  • compressed air is used as the gas for the conveying gas stream
  • the device according to the invention shown in FIG. 1 shows a blasting system 1 with a compressed air supply 2.
  • the blasting system 1 contains a reservoir for the blasting media 3.
  • the blasting agent 3 is added to the compressed air delivery flow from line 2 and passed via the blasting hose 7 to the blasting device 4, which is designed as a blasting gun.
  • a bypass line 5 is shown in Figure 1 for a partial flow of compressed air. For example, liquid nitrogen or liquid carbon dioxide is fed into the bypass line for cooling from a gas supply 6.
  • FIG. 2 shows , as in FIG. 1 described above, a blasting system 1 with a reservoir for the blasting medium 3, to which compressed air is supplied as the conveying gas via line 2.
  • the blasting system 1 is connected to the blasting gun 4 via the blasting hose 7.
  • a line 9 from the gas container 6 to the blasting gun 4 is provided in FIG.
  • Liquefied gas such as, for example, liquid nitrogen, is passed via this line 9 for cooling into the blasting gun 4.
  • the jet of compressed air and blasting media is cooled within the blasting gun 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The method and equipment for exposing a workpiece to blasting media (3) in solid aggregate form under normal conditions involve a blasting plant (1) with injectors for adding the blasting medium to a jet of carrier gas (2,5). A tube (7) leads from the blasting plant to a blasting appliance (4) from which the blasting medium is applied to the workpiece being treated. The jet of carrier gas is cooled by adding liquefied gases (6) conveyed in a pipe (8) to a part-jet in the form of a bypass (5) of the jet.

Description

Die Erfindung betrifft ein Verfahren zum Bestrahlen eines Werkstücks mit unter Normalbedingungen in festem Aggregatzustand vorliegenden Strahlmitteln, wobei die Strahlmittel in einer Strahlanlage in einen Fördergasstrom eindosiert, mit dem Fordergasstrom zu einer Strahlvorrichtung gefördert und auf das zu bearbeitende Werkstück gestrahlt werden. Die Erfindung betrifft ferner eine Vorrichtung zum Bestrahlen eines Werkstücks mit unter Normalbedingungen in festem Aggregatzustand vorliegenden Strahlmitteln umfassend eine Strahlanlage mit Mitteln zum Eindosieren der Strahlmittel in einen Fördergasstrom, einen Strahlschlauch, der von der Strahlanlage zu einer Strahlvorrichtung führt, aus welcher die Strahlmittel auf das zu bearbeitende Werkstück gestrahlt werden.The invention relates to a method for irradiating a workpiece with under Normal conditions in a solid state of abrasive, the Blasting agent dosed into a conveying gas stream in a blasting system, with the feed gas stream conveyed to a blasting device and onto the workpiece to be machined be blasted. The invention further relates to a device for irradiating a Workpiece with a solid state under normal conditions Blasting media comprising a blasting system with means for metering in the blasting media into a conveying gas stream, a blasting hose that runs from the blasting system to a Blasting device leads from which the blasting agent onto the workpiece to be machined be blasted.

Das Bestrahlen von Werkstücken mit unter Normalbedingungen partikelförmig vorliegenden Strahlmitteln ist seit langem bekannt und wird für zahlreiche Anwendungsfälle eingesetzt. Eine Strahlbearbeitung mit diesen konventionellen Strahlmitteln weist in der Regel eine wesentlich höhere Abrasivität auf als ein Bestrahlen mit seit einiger Zeit auch bekannten, bei Normalbedingungen in fluider Form vorliegenden Strahlmitteln wie beispielsweise Trockeneis. Zu den konventionellen Strahlmitteln zählen beispielsweise Quarzsand (Sandstrahlen), aber auch Stahlkies, Hartguskies, Drahtkorn, Korund oder andere anorganische oder organische Strahlmittel oder Strahlmittel auf pflanzlicher Basis.Irradiation of workpieces with particles present under normal conditions Abrasives have been known for a long time and are used for numerous applications used. Blasting with these conventional abrasives shows usually a much higher abrasiveness than exposure to some Time also known abrasives, which are present in fluid form under normal conditions such as dry ice. Conventional abrasives include for example quartz sand (sandblasting), but also steel gravel, hard cusk gravel, Grain of wire, corundum or other inorganic or organic abrasives or Plant-based abrasives.

Mit der Strahlbehandlung unter Einsatz von herkömmlichen, abrasiven Strahlmitteln geht üblicherweise eine starke Staubentwicklung einher. Der Staub wird durch die abprallenden Strahlmitteln und das abgestrahlte Material hervorgerufen. Diese starke Staubentwicklung ist in der Regel sehr unerwünscht.With blasting treatment using conventional, abrasive blasting agents there is usually a lot of dust. The dust gets through the bouncing abrasives and the blasted material. This strong Dust is usually very undesirable.

Neben den trockenen Abrasivstrahlbehandlungen gibt es auch nasse Strahlbehandlungen mit herkömmlichen Abrasivstrahlmitteln unter Zugabe von Wasser. Durch diese Zugabe von Wasser erreicht man zwar in der Regel eine Staubbindung, allerdings wird der Effekt der Staubbindung mit großen Abwassermengen erkauft, die aufwendig gefaßt und entsorgt werden müssen. In addition to the dry abrasive blasting treatments, there are also wet blasting treatments with conventional abrasive abrasives with the addition of water. Through this Adding water usually achieves dust binding, but will bought the effect of dust binding with large amounts of wastewater, which is expensive must be caught and disposed of.

Die Staubbindung in den nassen Strahlbehandlungen ist folglich mit gravierenden Nachteilen verbunden.The dust binding in the wet blasting treatment is consequently serious Disadvantages connected.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde ein Verfahren und eine Vorrichtung der eingangs genannten Art aufzuzeigen, welche eine effektive Staubbindung auf einfache Art und Weise zeigen.The present invention is therefore based on the object of a method and a Show device of the type mentioned, which an effective dust binding show in a simple way.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Fördergasstrom gekühlt wird und im zum Werkstück hingerichteten Strahl staubbindende Kondensattröpfchen erzeugt werden.This object is achieved in that the feed gas stream is cooled and dust-binding condensate droplets in the jet directed towards the workpiece be generated.

Durch die Kälte des aus der Strahlvorrichtung austretenden aus kaltem Fördergas und Strahlmitteln bestehenden Strahls kommt es spontan zu einer Nebelbildung. Dabei entstehen Kondensattröpfchen, mit deren Hilfe eine Staubbindung ermöglicht wird.Due to the cold of the emerging from the blasting device from cold conveying gas and Blasting media of the existing jet spontaneously cause fog to form. Here droplets of condensate are formed, with the aid of which dust binding is enabled.

In Weiterbildung der Erfindung wird der Fördergasstrom durch Zugabe von verflüssigten Gasen gekühlt. Unter 'verflüssigten Gasen' wird im Rahmen der Erfindung ein verflüssigtes Gas oder ein Gemisch aus mehreren verflüssigten Gasen verstanden. Grundsätzlich können für die Erfindung alle geeigneten Gase verwendet werden. Mit Vorteil werden verflüssigter Stickstoff (LIN), verflüssigtes Kohlendioxid (LCO2) oder verflüssigte synthetische Luft eingesetzt. Durch den Einsatz von verflüssigter synthetischer Luft wird beispielsweise in engen Räumen eine Behandlung auch ohne schweren Atemschutz (z.B. ist Filterschutz ausreichend) ermöglicht.In a further development of the invention, the feed gas stream is cooled by adding liquefied gases. In the context of the invention, “liquefied gases” is understood to mean a liquefied gas or a mixture of several liquefied gases. In principle, all suitable gases can be used for the invention. Liquefied nitrogen (LIN), liquefied carbon dioxide (LCO 2 ) or liquefied synthetic air are used with advantage. The use of liquefied synthetic air enables treatment even in heavy rooms without heavy breathing protection (e.g. filter protection is sufficient).

Die Kühlung kann durch Zugabe von verflüssigten Gasen in den (noch) keine Strahlmittel mitführenden Fördergasstrom erfolgen. Insbesondere kann verflüssigtes Gas in einen Teilstrom des Fördergasstromes eingespeist werden.The cooling can not (yet) by adding liquefied gases in the blasting media carrying gas flow. In particular, liquefied gas in a partial stream of the conveying gas stream can be fed.

In Ausgestaltung der Erfindung kann ein Teilstrom des Fördergasstromes als Bypass um die Strahlanlage geführt werden, wobei die Einspeisung von verflüssigten Gasen in diesen Bypass-Teilstrom erfolgt. In one embodiment of the invention, a partial stream of the conveying gas stream can be bypassed be guided around the blasting system, with the feed of liquefied gases in this bypass partial flow takes place.

Alternativ kann die Kühlung durch Zugabe von verflüssigten Gases in den bereits Strahlmittel mitführenden Fördergasstrom erfolgen. Bevorzugt findet dabei eine Zugabe der verflüssigten Gase innerhalb der Strahlvorrichtung statt.Alternatively, the cooling can be done by adding liquefied gas to the already Blasting media carrying conveying gas flow. Preferably one finds Addition of the liquefied gases takes place within the blasting device.

Im folgenden soll die Erfindung anhand zweier, schematisch dargestellter Ausführungsbeispiele näher erläutert werden.In the following, the invention is to be illustrated using two schematically illustrated exemplary embodiments are explained in more detail.

Hierbei zeigen:

Figur 1
eine erfindungsgemäße Vorrichtung mit Kühlung im Bypass und
Figur 2
eine erfindungsgemäße Vorrichtung mit Kühlung innerhalb der Strahlpistole.
Here show:
Figure 1
a device according to the invention with cooling in the bypass and
Figure 2
a device according to the invention with cooling within the blasting gun.

In den Ausführungsbeispielen wird als Gas für den Fördergasstrom Druckluft verwendetIn the exemplary embodiments, compressed air is used as the gas for the conveying gas stream

Die in Figur 1 dargestellte erfindungsgemäße Vorrichtung zeigt eine Strahlanlage 1 mit einer Druckluftversorgung 2. In der Strahlanlage 1 ist ein Vorratsbehälter für die Strahlmittel 3 enthalten. In der Strahlanlage 1 wird dem Druckluft-Förderstrom aus Leitung 2 das Strahlmittel 3 zugegeben und über den Strahlschlauch 7 zur Strahlvorrichtung 4 geleitet, die als Strahlpistole ausgestaltet ist. Außerdem ist in Figur 1 eine Bypass-Leitung 5 für einen Teilstrom der Druckluft gezeigt. Aus einer Gasvorsorgung 6 wird beispielsweise flüssiger Stickstoff oder flüssiges Kohlendioxid in die Bypassleitung zur Kühlung eingespeist.The device according to the invention shown in FIG. 1 shows a blasting system 1 with a compressed air supply 2. The blasting system 1 contains a reservoir for the blasting media 3. In the blasting system 1, the blasting agent 3 is added to the compressed air delivery flow from line 2 and passed via the blasting hose 7 to the blasting device 4, which is designed as a blasting gun. In addition, a bypass line 5 is shown in Figure 1 for a partial flow of compressed air. For example, liquid nitrogen or liquid carbon dioxide is fed into the bypass line for cooling from a gas supply 6.

In Figur 2 ist wie in der oben beschriebenen Figur 1 eine Strahlanlage 1 mit einem Vorratsbehälter für die Strahlmittel 3 gezeigt, zu der über Leitung 2 Druckluft als Fördergas zugeführt wird. Die Strahlanlage 1 ist über den Strahlschlauch 7 mit der Strahlpistole 4 verbunden. Im Unterschied zu der in Figur 1 gezeigten Vorrichtung ist in Figur 2 eine Leitung 9 vom Gasbehälter 6 zur Strahlpistole 4 vorgesehen. Über diese Leitung 9 wird verflüssigtes Gas wie beispielsweise flüssiger Stickstoff zur Kühlung in die Strahlpistole 4 geleitet. Innerhalb der Strahlpistole 4 findet eine Kühlung des Strahles aus Druckluft und Strahlmitteln statt. FIG. 2 shows , as in FIG. 1 described above, a blasting system 1 with a reservoir for the blasting medium 3, to which compressed air is supplied as the conveying gas via line 2. The blasting system 1 is connected to the blasting gun 4 via the blasting hose 7. In contrast to the device shown in FIG. 1, a line 9 from the gas container 6 to the blasting gun 4 is provided in FIG. Liquefied gas, such as, for example, liquid nitrogen, is passed via this line 9 for cooling into the blasting gun 4. The jet of compressed air and blasting media is cooled within the blasting gun 4.

Claims (11)

Verfahren zum Bestrahlen eines Werkstücks mit unter Normalbedingungen in festem Aggregatzustand vorliegenden Strahlmitteln (3), wobei die Strahlmittel (3) in einer Strahlanlage (1) in einen Fördergasstrom (2, 5, 7) eindosiert, mit dem Fördergasstrom zu einer Strahlvorrichtung (4) gefördert und auf das zu bearbeitende Werkstück gestrahlt werden, dadurch gekennzeichnet, daß der Fördergasstrom (2, 5, 7) gekühlt wird und im zum Werkstück hin gerichteten Strahl staubbindende Kondensattröpfchen erzeugt werden.Method for blasting a workpiece with blasting media (3) present in a solid state under normal conditions, the blasting media (3) being metered into a conveying gas stream (2, 5, 7) in a blasting system (1), with the conveying gas stream to a blasting device (4) conveyed and blasted onto the workpiece to be machined, characterized in that the conveying gas stream (2, 5, 7) is cooled and dust-binding condensate droplets are generated in the jet directed towards the workpiece. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Fördergasstrom (2, 5, 7) durch Zugabe von verflüssigten Gasen (6) gekühlt wird.Method according to claim 1, characterized in that the conveying gas stream (2, 5, 7) is cooled by adding liquefied gases (6). Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß verflüssigter Stickstoff, verflüssigtes Kohlendioxid oder verflüssigte synthetische Luft eingesetzt werden.A method according to claim 2, characterized in that liquefied nitrogen, liquefied carbon dioxide or liquefied synthetic air can be used. Verfahren nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß die Kühlung durch Zugabe von verflüssigten Gasen (6) in den noch keine Strahlmittel (3) mitführenden Fördergasstrom (2, 5) erfolgt.Method according to one of claims 2 or 3, characterized in that the Cooling by adding liquefied gases (6) to the blasting media (3) entrained conveying gas flow (2, 5). Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Kühlung durch Zugabe von verflüssigten Gasen (6) in einen Teilstrom (5) des Fördergasstromes (2) erfolgt.A method according to claim 4, characterized in that the cooling by Adding liquefied gases (6) to a partial stream (5) of the conveying gas stream (2) is done. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Kühlung durch Zugabe von verflüssigten Gasen (6) in den Strahlmittel (3) mitführenden Fördergasstrom (7), bevorzugt innerhalb der Strahlvorrichtung (4), stattfindet.Method according to one of claims 1 to 3, characterized in that the Cooling by adding liquefied gases (6) in the blasting medium (3) Conveying gas flow (7), preferably within the blasting device (4), takes place. Vorrichtung zum Bestrahlen eines Werkstücks mit unter Normalbedingungen in festem Aggregatzustand vorliegenden Strahlmitteln (3) umfassend eine Strahlanlage (1) mit Mitteln zum Eindosieren der Strahlmittel (3) in einen Fördergasstrom (2, 5), einen Strahlschlauch (7), der von der Strahlanlage (1) zu einer Strahlvorrichtung (4) führt, aus welcher die Strahlmittel (3) auf das zu bearbeitende Werkstück gestrahlt werden, dadurch gekennzeichnet, daß die Vorrichtung Mittel (6, 8, 9) zum Kühlen des Fördergasstromes (2, 5, 7) und zur Erzeugung von staubbindenden Kondensattröpfchen im zum Werkstück hin gerichteten Strahl umfaßt.Device for blasting a workpiece with blasting media (3) which is present in a solid state under normal conditions, comprising a blasting system (1) with means for metering the blasting media (3) into a conveying gas stream (2, 5), a blasting hose (7) coming from the blasting system (1) leads to a blasting device (4) from which the blasting means (3) are blasted onto the workpiece to be machined, characterized in that the device has means (6, 8, 9) for cooling the conveying gas stream (2, 5, 7 ) and for generating dust-binding condensate droplets in the jet directed towards the workpiece. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß Mittel (5, 8, 9) zur Einspeisung von verflüssigten Gasen (6) in den Fördergasstrom (2, 5, 7) vorgesehen sind.Apparatus according to claim 7, characterized in that means (5, 8, 9) for Liquefied gases (6) are fed into the conveying gas stream (2, 5, 7) are. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß eine Leitung (8) zur Einspeisung von verflüssigten Gasen (6) in einen Teilstrom (5) des Fördergasstromes vorhanden ist.Apparatus according to claim 8, characterized in that a line (8) for Feeding of liquefied gases (6) into a partial stream (5) of the conveying gas stream is available. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der Teilstrom (5) als Bypass (5) um die Strahlanlage (1) ausgestaltet ist.Apparatus according to claim 9, characterized in that the partial flow (5) as Bypass (5) around the blasting system (1) is designed. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß eine Leitung (9) zur Einspeisung von verflüssigten Gasen (6) in den Strahlmittel (3) mitführenden Fördergasstrom (7), bevorzugt innerhalb der Strahlvorrichtung (4), vorgesehen ist.Apparatus according to claim 8, characterized in that a line (9) for Feeding of liquefied gases (6) into the blasting agent (3) Delivery gas flow (7), preferably within the blasting device (4), is provided.
EP00104374A 1999-03-05 2000-03-02 Method and device for blasting with a blasting medium at a reduced temperature Withdrawn EP1034889A3 (en)

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Application Number Priority Date Filing Date Title
DE19909719 1999-03-05
DE19909719 1999-03-05

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EP1034889A3 EP1034889A3 (en) 2000-12-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006000274A1 (en) * 2004-06-24 2006-01-05 Jens Werner Kipp Device and method for feeding liquid carbon dioxide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228939A1 (en) * 1985-12-12 1987-07-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and apparatus for the mechanical treatment of work pieces
DE3617692A1 (en) * 1986-05-26 1987-12-03 Klaus Fertl Device in sandblasting conduits
WO1993024275A1 (en) * 1992-06-01 1993-12-09 Ice Blast International Ltd. Particle blasting utilizing crystalline ice
JPH0911132A (en) * 1995-06-23 1997-01-14 Sho Bond Constr Co Ltd Blast-cleaning method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228939A1 (en) * 1985-12-12 1987-07-15 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and apparatus for the mechanical treatment of work pieces
DE3617692A1 (en) * 1986-05-26 1987-12-03 Klaus Fertl Device in sandblasting conduits
WO1993024275A1 (en) * 1992-06-01 1993-12-09 Ice Blast International Ltd. Particle blasting utilizing crystalline ice
JPH0911132A (en) * 1995-06-23 1997-01-14 Sho Bond Constr Co Ltd Blast-cleaning method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 05, 30. Mai 1997 (1997-05-30) & JP 09 011132 A (SHO BOND CONSTR CO LTD), 14. Januar 1997 (1997-01-14) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006000274A1 (en) * 2004-06-24 2006-01-05 Jens Werner Kipp Device and method for feeding liquid carbon dioxide

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EP1034889A3 (en) 2000-12-20

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