WO2001098030A1 - Dry-ice blast device - Google Patents
Dry-ice blast device Download PDFInfo
- Publication number
- WO2001098030A1 WO2001098030A1 PCT/JP2001/005339 JP0105339W WO0198030A1 WO 2001098030 A1 WO2001098030 A1 WO 2001098030A1 JP 0105339 W JP0105339 W JP 0105339W WO 0198030 A1 WO0198030 A1 WO 0198030A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dry ice
- air
- ice particles
- rotor
- hopper
- 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.)
- Ceased
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
-
- 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
- B24C7/0092—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed by mechanical means, e.g. by screw conveyors
-
- 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
Definitions
- the present invention relates to a dry ice blasting device using dry ice particles as an abrasive.
- FIG. 6 shows an example of a schematic structure of a conventional dry ice blast apparatus. This Yoda
- the conventional one has a configuration in which an air dryer 91, pipes 92 and nozzles 93 are connected to the discharge port of a medium-high pressure type air compressor 90 that compresses air to, for example, 8 atm (atm) or more.
- a medium-high pressure type air compressor 90 that compresses air to, for example, 8 atm (atm) or more.
- the dry ice particles D stored in the hopper 94 can be supplied by a supply device 95 into a pipe 92 a branched from the pipe 92.
- the dry ice particles D supplied into the pipe 92 a are mixed with the air flow in the nozzle 93.
- a high-speed air flow in which the dry ice particles D are mixed is discharged from the nozzle 93, and blast processing using the dry ice particles D as an abrasive can be performed.
- the dry ice particles D collide with the object to be blasted, they sublime in a short time thereafter. Therefore, it is not necessary to collect the abrasive.
- the injection noise of the high-speed airflow from the nozzle 93 is loud, and its sound pressure level can reach, for example, 120 dB. This is thought to be jet noise when the air expands rapidly due to a large pressure change. Conventionally, for example, when a worker performs blasting work with the nozzle 93 by hand, a loud noise is generated close to the worker, which makes it unbearable for continuous work.
- the air compressor 90 is of a medium / high pressure type, the air compressor 90 itself is expensive, and the accompanying equipment is also expensive. In addition, their size and weight were large, making them inconvenient to transport.
- the medium / high pressure type air compressor is used because the higher the air flow generated by the air compressor, the higher the efficiency of the plast treatment. This is probably because the idea was dominant. However, it will be understood from the following description of the present invention that such a concept is not always appropriate.
- a dry ice blasting device provided by the present invention includes: an air compressor; an air conveying path for guiding an air flow generated by the air compressor to a nozzle; and dry ice for mixing dry ice particles in the air flow.
- a dry ice blasting device comprising: a particle supply means, wherein the air compressor has an outlet pressure of 1.2 to 2.5 atm (a gauge pressure of 0.2 to 1.5 atm). ), And the dry ice particle supply means is provided so as to mix dry ice particles into the air flow upstream of the nozzle in the air conveying path. It is characterized by
- the dry ice particle supply means includes a hopper having a bottom opening for storing the dry ice particles, and a sending means for discharging the dry ice particles from the bottom opening of the hopper and sending the dry ice particles to the air conveyance path. , have.
- the whole or part of the inner surface of the hopper is an uneven surface capable of making point contact with dry ice particles.
- the convex surface is a resin-coated surface.
- the dry ice blasting device includes a knocker that taps the hopper at predetermined time intervals so as to give an impact to the dry ice particles stored in the hopper.
- the delivery means is configured to receive the dry ice particles from the hobber and supply the dry ice particles into the air discharge passage while always blocking a gap between the bottom opening of the hopper and the air discharge passage. It has a moving member that operates.
- the delivery means includes a casing having first and second openings communicating with the bottom opening of the hobber and the air conveyance path, respectively, a rotor rotatably provided in the casing, And an accommodating portion provided on the rotor, and the bracket accommodating portion is moved to a position communicating with each of the first and second openings of the casing along with rotation of the rotor, whereby: A rotary feeder capable of dropping and discharging dry ice particles from the opening at the bottom of the hopper into the storage section and dropping and discharging dry ice particles from the storage section to the air conveyance path; The rotor is configured such that the rotor always shuts off between the first and second openings.
- a plurality of the accommodating portions are provided on the rotor, and a width of a partition wall partitioning between the plurality of accommodating portions is larger than each opening width of the first and second opening portions. Is also smaller.
- the accommodating portion is formed as a through hole penetrating in a thickness direction of the rotor, and the rotor is formed such that first and second openings of the casing respectively penetrate.
- the casing is rotatable around an axis extending in the vertical thickness direction of the casing, and the upper and lower portions of the rotor are each provided with the housing.
- An auxiliary piece is provided as an opening edge of the part, and between the screw and the rotor, the screw is pressed toward the upper wall or the lower wall of the casing.
- An elastic member is provided.
- the rotation speed of the rotor is changeable.
- a check valve for preventing backflow of air toward the air compressor is provided upstream of a portion of the air conveyance path where dry ice particles are supplied from the dry ice particle supply means. Have been.
- a portion of the air conveyance path near the front end is constituted by a flexible hose, and the bracket hose includes an operation switch and data of operation contents of the operation switch as a radio signal.
- a wireless transmitter capable of output is provided, and the operation of the air compressor and the dry ice particle supply means can be controlled based on a wireless signal output from the wireless transmitter.
- the dry ice blasting device includes a portable frame having wheels for movement, and the air compressor; a motor for driving the air compressor;
- the ice particle supply means and a pipe member forming the air conveyance path are assembled to the portable frame.
- FIG. 1 is a partially cutaway view showing an embodiment of a dry ice blasting apparatus according to the present invention. It is a surface side view.
- FIG. 2 is a cross-sectional view of a main part of the hob of the dry ice blasting apparatus shown in FIG.
- FIG. 3 is a cross-sectional view of a main part of the rotary feeder of the dry ice blast device shown in FIG.
- FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG.
- FIG. 5 is a cross-sectional view of the check valve of the dry ice blast device shown in FIG.
- FIG. 6 is an explanatory diagram illustrating an example of a conventional technique. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 shows an embodiment of the dry ice blast apparatus according to the present invention.
- the dry ice blasting apparatus A of this embodiment includes a portable frame 1, an air compressor 2, a pipe 30 connected to a discharge pipe 20 of the air compressor 2, a hose 31, a nozzle 32, and an operation. It comprises a unit 4A, a control unit 4B, a hopper 5, a rotary feeder 6, and a knocker 7.
- the portable frame 1 is formed in a substantially box shape as a whole, and the other components constituting the dry ice blasting apparatus A are directly or indirectly assembled to the portable frame 1.
- the portable frame 1 has a plurality of wheels 10 and can be easily moved on the ground.
- One or more handles 11 are attached to the upper part of the portable frame 1.
- the air compressor 2 is, for example, a roux blower, and the outlet pressure in the discharge pipe 20 is set to 1.2 to 2.5 atm (atm), preferably 1.4 to 1.9 atm. It can generate low pressure, high speed and large flow of air.
- the air compressor 2 can be operated by applying a driving force from the motor M1 via a belt 21 and a pair of pulleys 22a and 22b.
- the inside of the pipe 30 and the hose 31 serves as an air conveying path 3 for guiding the air flow generated by the air compressor 2 to the nozzle 32.
- Tube 30 Is connected to a branch pipe part 32 for connecting the inside of the pipe 30 to the rotary feeder 6, and dry ice particles D pass through the pipe body 30 through the branch pipe part 32. It is configured to be supplied to
- a check valve 33 is provided between the pipe 30 and the discharge pipe 20 of the air compressor 2. As shown in FIG. 5, the check valve 33 is provided with a valve body 33a that can swing in opposition to the opening 20a of the discharge pipe 20. When the compressed air is discharged from the air compressor 2 toward the pipe 30, the valve 33 a opens the opening 20 a as shown by the solid line in FIG.
- the dry ice plast device A may have a configuration in which an accumulator is provided upstream of a connection point of the branch pipe portion 30 of the air transport path 3. According to such a configuration, it is possible to suppress the generation of noise due to the discharge of the compressed air and to suppress the pulsation of the air flow in the air conveyance path 3.
- the hose 31 is flexible and can be attached to and detached from the distal end of the tube 30.
- the nozzle 32 is attached to the end of the hose 31 and has a handle 32 a so that the user can easily grasp it.
- the nozzle 32 has, for example, a circular opening at the tip, but has a hose 3 so that it can be appropriately replaced with one having a different opening shape (for example, a flat shape) depending on the working application. It can also be detachable from one.
- Nozzle 32 has, for example, an elongated straight tubular tip portion having a length of about 30 to 6 O cm. According to such a configuration, when the air flow mixed with the dry ice particles D is jetted from the nozzle 32, the jet direction can be stabilized.
- the operation unit 4A is provided with an operation switch for turning on / off the operation of the dry ice blasting device A, and is attached to the outer surface of the nozzle 32 to facilitate the operation.
- the operation unit 4A may be provided with an operation switch for adjusting the supply amount (supply speed) of the dry ice particles D from the rotary feeder 6 to the air conveyance path 3.
- the operation unit 4A incorporates a wireless transmitter 40 capable of wirelessly outputting data of the operated content as radio waves of a predetermined frequency or infrared signals.
- the wireless signal output from the wireless transmitter 40 can be received by the wireless receiver 41 provided in the control unit 4B.
- the control unit 4B is provided on the portable frame 1, and is an electric circuit (not shown) for controlling each unit of the dry ice blasting apparatus A based on the content of the signal received by the wireless receiver 41. Is provided.
- the control unit 4B is also provided with operation switches, and the operation of the dry ice blasting device A can be turned on / off by either the operation of these operation switches or the operation of the operation unit 4A. And other controls.
- means for electrically connecting the operation unit 4A and the control unit 4B of the horn control 32 via a harness Can may also be used.
- the above harness may be routed along the hose 31.
- the hopper 5 is for storing the dry ice particles D, and is fixedly mounted on the upper portion of the portable frame 1.
- the hopper 5 is formed in a funnel shape having at least a lower half having a bottom opening 53, and an upper opening serving as an inlet for the dry ice particles D can be closed by a lid 50.
- the hopper 5 is formed, for example, by processing a stainless steel plate, and has a resin coating applied to the entire inner surface thereof. More specifically, as shown in FIG. 2, a resin coating layer 52 made of, for example, a fluororesin is formed on the surface of the base material 51 made of a stainless steel plate of the hopper 5. .
- the surface of the resin coating layer 52 is an uneven surface in which a large number of minute uneven portions are formed in a smooth shape.
- a hard particle having a particle size of about 0.1 to 0.5 mm is previously formed on the surface of the base material 51.
- the surface of the base material 51 by applying a plast treatment using the abrasive material Can be used as a rough surface, and then the rough surface is coated with a fluororesin having a thickness of about 5 to 10 ⁇ .
- the outer periphery of the hopper 5 is surrounded by a heat insulating material (not shown), so that the dry ice particles D are prevented from sublimating in the hopper 5.
- the knocker 7 is for knocking the dry ice particles D in the hopper 5 by hitting the vicinity of the bottom of the hopper 5, and is attached to the chassis 19a of the portable frame 1 through an appropriate bracket 71. Attached.
- a member 70 for making contact with the hopper 5 can be reciprocated by, for example, an electromagnetic solenoid, and the operation of hitting the hopper 5 is performed by a predetermined control under the control of the control unit 4B. It is configured to be performed intermittently at time intervals. The time interval can be increased or decreased by operating the operation switch of the control unit 4B.
- the rotary feeder 6 is for supplying the dry ice particles D in the hopper 5 to the air transfer path 3 via the branch pipe section 32 at a constant rate.
- the rotary feeder 6 has a configuration in which a rotor 61 is rotatably provided in a casing 60.
- the casing 60 is fixed to the chassis 19 b and 19 c of the portable frame 1, and the upper wall 60 a and the lower wall 60 opposing each other across the spacer 60 c. b.
- the upper wall portion 60 a is connected to the bottom portion of the hopper 5 via a tube 63, and the first opening portion 6 communicating with the bottom opening portion 53 of the hopper 5 via the tube body 63. Has 2a.
- the lower wall portion 6Ob is connected to an upper portion of the branch pipe portion 32, and has a second opening portion 62b which communicates with the air conveying path 3 via the branch pipe portion 32. ing.
- the first and second openings 62a and 62b are displaced so as not to face each other.
- the rotor 61 is formed in a substantially disk shape, and is rotatable with the rotation of a shaft 64 that vertically passes through a substantially central portion of the casing 60.
- the shaft 64 is provided with a gear 64 a or a pulley, and the gear 64 a or the pulley receives a driving force from a motor (not shown) so that the shaft 64 and the rotor 61 can rotate. It has become.
- the rotation speed of the rotor 61 can be changed freely.
- the rotor 61 is provided with a plurality of storage portions 65 as through holes penetrating in the vertical thickness direction of the rotor 61. Each compartment 65 is, as best seen in FIG.
- the plurality of storage portions 65 are configured to be separated from each other via a plurality of partition portions 69, and the width s1 of these partition portions 69 is equal to the first and second openings 62.
- the dimensions are smaller than the respective opening diameters dl and d2 of a and 62b.
- a concave portion 66 is formed on each of the upper surface portion and the lower surface portion of the rotor 61, and the concave portion 66 is provided separately from the rotor 61.
- a plate-shaped auxiliary piece 67 formed in a rectangular shape is fitted.
- the auxiliary piece 67 has a plurality of through-holes having the same opening shape as the housing portion 65 so as not to block the housing portion 65. These through holes also serve as a part of the housing 65.
- a plurality of rubber sheets 68 made of, for example, silicone rubber are interposed between each of the auxiliary pieces 67 and the rotor 61, and the rubber sheet 68 acts on the upper surface of the rotor 61 by the elastic force.
- the auxiliary piece 67 is pressed against the upper wall 60a of the casing 60, and the auxiliary piece 67 on the lower face of the rotor 61 is pressed against the lower wall 60b of the casing 60.
- the rubber sheet 68 is made of silicone rubber, even if the rubber sheet 68 is cooled by the dry ice particles D, the characteristics of the elastic member can be prevented from being significantly impaired.
- the elastic member interposed between the auxiliary piece 67 and the rotor 61 can be made of a material other than silicone rubber.
- the dry ice particles D for example, cylindrical particles having a diameter of 3 mm and a length of about 3 to 5 mm are used. Of course, the dry ice particles D may have other shapes and sizes.
- the air compressor 2 is operated to generate a predetermined low-pressure air flow in the air conveyance path 3, and the rotary feeder 6 is operated to dry the hopper 5.
- the ice particles D are supplied to the air conveyance path 3.
- the partition wall portion 69 of the rotor 61 is narrower than the opening diameter d1 of the first opening portion 62 a, the first opening portion 62 When the partition wall part 69 moves just below the first opening part 62 a, the first opening part 62 a does not become fully closed. For this reason, one of the storage portions 65 is always disposed immediately below the first opening portion 62 a, and the operation of storing the dry ice particles D from the hopper 5 into the storage portion 65 is performed. It will be done continuously. On the other hand, since the partition wall portion 69 is smaller than the opening diameter d2 of the second opening portion 62b, the second opening portion 62b is also completely closed by the partition wall portion 69. It does not come off.
- each of the storage portions 65 is always located immediately above the second opening portion 62b, and the discharging operation of the dry ice particles D toward the air conveyance path 3 is continuously performed. Will be done.
- the dry ice particles D can be continuously mixed into the air flow in the air conveyance path 3.
- the dry ice particles D can be continuously injected from the nozzle 32.
- each of the storage portions 65 is formed in a long hole shape having a constant width, it is possible to prevent a large change in the supply amount of the dry ice particles D to the air conveyance path 3.
- the present invention is not limited to this, and each of the housing portions 65 may be formed in a non-elongate hole shape.
- the rotation speed of the rotor 61 When the rotation speed of the rotor 61 is changed, the supply amount of the dry ice particles D to the air transfer path 3 per unit time also changes. Therefore, the mixing ratio of the dry ice particles D contained in the airflow injected from the nozzle 32 can be adjusted to a ratio according to the user's request.
- the auxiliary pieces 67 come into sliding contact with the upper wall 60 a or the lower wall 60 b of the casing 60 while being pressed by the elastic force of the rubber sheet 68. . Therefore, no gap is formed between the auxiliary piece 67 and the upper wall section 60a and between the auxiliary piece 67 and the lower wall section 60b so that the dry eye is not formed. Particles D can be prevented from penetrating between them.
- the rotor 61 always partitions between the first opening 62 a and the second opening 62 in the casing 60. Therefore, the pressure of the compressed air can be prevented from acting on the bottom opening 53 of the hopper 5 even though the compressed air having a constant pressure flows in the air conveyance path 3.
- the dry ice particles D can be smoothly discharged from the bottom opening 53 of the hopper 5 without being affected by these. Become.
- the inside of the second opening 6 2b and the inside of the branch pipe section 32 have the same pressure as the pressure of the air conveyance path 3, the dry ice particles D are prevented from being blown up in these sections.
- the dry ice particles D can be appropriately supplied to the air conveyance path 3 using gravity.
- the dry ice particles D in the hopper 5 may freeze on the inner surface of the hopper 5 by freezing the water on or near the inner surface of the hopper 5.
- the contact portion between the uneven surface of the resin coating layer 52 on the inner surface of the hopper 5 and the dry ice particles D can be point contact. . Therefore, the possibility that the dry ice particles D freeze on the surface of the resin coating layer 52 can be reduced by reducing the contact area thereof.
- the surface of the resin coating layer 52 is smooth and its friction coefficient can be reduced, so that it is possible to make it easier to dry the particles D relative to the resin coating ⁇ 52. . Therefore, clogging of the dry ice particles D in the hopper 5 can be suppressed.
- the knocker 7 hits the bottom of the hopper 5 at predetermined time intervals, the impact at that time causes the dry ice particles D to freeze on the resin coating layer 52 or the dry ice particles D to freeze. This can be prevented beforehand or eliminated later. As a result, the discharge of the dry ice particles D from the bottom opening 53 of the hopper 5 becomes smoother. Nokka 7 Although noise is generated when the collar 5 is hit, the noise is intermittent, so that it is possible to prevent the worker from feeling too much discomfort.
- the dry ice particles D When the dry ice particles D are supplied from the rotary feeder 6 to the air transport path 3, the dry ice particles D are mixed into the airflow of the air transport path 3 and then transported toward the nozzle 32, and thereafter, It is injected from 32 to the outside.
- the dry particles D When the dry particles D are transported in the air transport path 3, the dry ice particles D collide with the inner surface of the pipe 30 or the hose 31.
- the air flow has a low pressure, the collision can be softened as compared with the case where the air flow has a medium / high pressure. Therefore, it is possible to reduce waste such that the dry ice particles D are severely worn or crushed by the collision with the inner surface of the tube 30 or the hose 31.
- the air flow has a low pressure
- the pressure fluctuation when the air flow is ejected from the nozzle 32 to the outside is smaller than when the air flow is medium and high pressure. For this reason, a strong turbulent flow is not easily generated in the nozzle 32, and a problem that the dry ice particles D are crushed due to the turbulent flow in the nozzle 32 can also be suppressed.
- the pressure fluctuation is small, noise due to the injection of the air flow is also reduced.
- the sound pressure level of the noise of the jet of the air flow can be reduced to about 125 dB from the conventional 120 dB. With this level of noise, there is no particular problem for the worker to carry out the work with the nozzle 32 by hand, and the working environment can be improved.
- the air flow is injected from the nozzle 32 to the outside, the pressure fluctuation is small, so that the air flow can be prevented from spreading at a large angle from the nozzle 32. Therefore, it is possible to prevent the dry ice particles D mixed in the air flow from spreading at a large angle, and to increase the projection density of the dry ice particles D. Since the dry ice particles D are mixed into the air flow considerably upstream of the nozzle 32, the dry ice particles D are placed in the flow of air to make the direction in which the dry ice particles D are jetted more stable. Is also possible. This is suitable for intensively blasting a desired portion.
- the blasting process using dry ice particles D cleans the surface of the blasting target It has the advantage of not being severely damaged and dry ice particles D do not form a residue, for example, household equipment such as walls and floors of ordinary houses and offices, or fins of air-con. It can also be suitably used for cleaning applications.
- the dry ice blasting apparatus A has a structure in which the components are assembled together in the portable frame 1 having the wheels 10, so that the transport is easy. It is suitable for various applications. The above-mentioned reduction in noise further promotes use in such applications. Also, since the air compressor 2 is used for low pressure, the weight and size of the air compressor 2 itself are smaller than those in the case of using a medium / high pressure air compressor, and the hose 31 is not used.
- the dry ice blasting device A can be made inexpensive in terms of cost and running cost as compared with the case of using a medium-to-high pressure air compressor, and is excellent in economic efficiency.
- the user of the dry ice blasting apparatus A can control the operation of the dry ice blasting apparatus A by operating the operation unit 4A attached to the nozzle 32, so that the operability is improved. It will be better. Only one hose 31 is connected to the nozzle 32.Since it is only necessary to draw the hose 31 when operating the nozzle 32, two pipes are connected to the nozzle. Compared with the conventional technology, the handling of the nozzle 32 becomes easier.
- the content of the dry ice blasting device according to the present invention is not limited to the above-described embodiment, and the specific configuration of each part can be variously changed in design.
- the means for supplying the dry ice in the hopper to the air conveyance path is not limited to the rotary feeder having the above-described configuration.
- Means can be used.
- a moving member capable of reciprocating movement is provided between the bottom of the hopper and the air conveying path, and a means for causing the moving member to receive the dry ice particles discharged from the hopper and then inputting the dry ice particles into the air conveying path. It can also be used.
- the supply of dry ice particles into the air conveyance path is intermittent, and it is difficult to supply the dry ice particles continuously.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Air Transport Of Granular Materials (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-7017366A KR100510867B1 (ko) | 2000-06-22 | 2001-06-21 | 드라이 아이스 블라스트 장치 |
| US10/312,059 US6890246B2 (en) | 2000-06-22 | 2001-06-21 | Dry-ice blast device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000187722 | 2000-06-22 | ||
| JP2000-187722 | 2000-06-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001098030A1 true WO2001098030A1 (en) | 2001-12-27 |
Family
ID=18687653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2001/005339 Ceased WO2001098030A1 (en) | 2000-06-22 | 2001-06-21 | Dry-ice blast device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6890246B2 (ja) |
| KR (1) | KR100510867B1 (ja) |
| CN (1) | CN1437521A (ja) |
| WO (1) | WO2001098030A1 (ja) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3333320A1 (de) * | 2016-12-07 | 2018-06-13 | Martin Herz | Vorrichtung und verfahren zur fugenreinigung |
| CN118162420A (zh) * | 2024-05-10 | 2024-06-11 | 湖南摩铠智能科技有限公司 | 模具干冰清洗设备 |
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- 2001-06-21 CN CN01811386A patent/CN1437521A/zh active Pending
- 2001-06-21 US US10/312,059 patent/US6890246B2/en not_active Expired - Lifetime
- 2001-06-21 WO PCT/JP2001/005339 patent/WO2001098030A1/ja not_active Ceased
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| JPH04360766A (ja) * | 1991-06-04 | 1992-12-14 | Ishikawajima Harima Heavy Ind Co Ltd | アイスブラスト装置及びアイスブラスト用氷粒製造方法 |
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| EP3333320A1 (de) * | 2016-12-07 | 2018-06-13 | Martin Herz | Vorrichtung und verfahren zur fugenreinigung |
| CN118162420A (zh) * | 2024-05-10 | 2024-06-11 | 湖南摩铠智能科技有限公司 | 模具干冰清洗设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100510867B1 (ko) | 2005-08-31 |
| KR20030022154A (ko) | 2003-03-15 |
| US20040005848A1 (en) | 2004-01-08 |
| CN1437521A (zh) | 2003-08-20 |
| US6890246B2 (en) | 2005-05-10 |
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