CN115401621B - Shot blasting device accelerated by electric field - Google Patents
Shot blasting device accelerated by electric field Download PDFInfo
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- CN115401621B CN115401621B CN202210988795.6A CN202210988795A CN115401621B CN 115401621 B CN115401621 B CN 115401621B CN 202210988795 A CN202210988795 A CN 202210988795A CN 115401621 B CN115401621 B CN 115401621B
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- shot
- shell
- pellet
- peening apparatus
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- 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
-
- 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
- B24C9/006—Treatment of used abrasive material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
A shot-peening apparatus accelerated by an electric field, comprising: the device comprises a shell, a polar plate, a projectile storage box, an electrode and a high-voltage electrostatic generator; the top of casing has seted up the pellet entry, and the inside of case is deposited to pellet entry intercommunication pellet, and the pellet jet orifice has been seted up to one side of casing, and the polar plate is fixed to be set up in the opposite side of pellet jet orifice in the casing with vertical direction, is provided with the electrode in discharge opening and the pellet entry, and the power supply cable of polar plate is connected with high-voltage electrostatic generator after passing the lateral wall of casing, and the power supply cable of electrode is connected with high-voltage electrostatic generator after passing the lateral wall of casing, and polar plate and electrode have the same electric charge under high-voltage electrostatic generator's effect. The design can not only enable the shot to obtain a certain initial speed to carry out shot blasting treatment under the action of the electric field force between the shot and the polar plate, but also conveniently adjust the position of the shot blasting treatment device, and effectively reduce the processing dead angle.
Description
Technical Field
The present invention relates to a shot-blasting apparatus, and more particularly, to a shot-blasting apparatus accelerated by an electric field, which is particularly suitable for a shot-blasting apparatus which is accelerated by an electric field to have high energy conversion efficiency and no processing dead angle.
Background
The shot blasting is a surface strengthening process widely adopted at present, is mainly used for improving the wear resistance, fatigue resistance and corrosion resistance of the surface of a workpiece, and is characterized in that certain special properties which are not possessed by a bulk material can be obtained without changing the whole material quality of the material, and the process cost is lower. In the current shot blasting treatment, the main acceleration mode of shots is as follows: centrifugal acceleration, which typically ejects steel grit through a high-speed rotating flywheel, and pneumatic acceleration, which uses compressed air as a motive force to accelerate the shot.
Although both methods can achieve a certain initial velocity of the stream of pellets with high efficiency, and thus impact the surface of the part, they still have the following drawbacks:
1. the energy output by the pneumatic accelerating compressed air cannot be fully acted on the projectile, the energy conversion efficiency is low, the running cost is wasted, and the projectile speed is low under the condition of a certain compressed air compression rate.
2. Impeller body and motor that the shot-blasting equipment had an integral structure in the centrifugal acceleration, and weight is great, and impeller body high-speed rotation when using simultaneously can't adjust equipment position as required for processing has the dead angle.
Disclosure of Invention
The invention aims to overcome the defects of low energy conversion efficiency and dead angle processing existing in the prior art, and provides a shot blasting device which is high in energy conversion efficiency and free of dead angle processing due to electric field acceleration.
In order to achieve the above object, the technical solution of the present invention is:
a shot-peening apparatus accelerated by an electric field, the shot-peening apparatus comprising: the device comprises a shell, a polar plate, a projectile storage box, an electrode and a high-voltage electrostatic generator; the top of casing has seted up the pellet entry, the pellet jet orifice has been seted up to one side of casing, the polar plate is fixed to be set up in the opposite side of the interior pellet jet orifice of casing with vertical direction, the pellet is deposited the case and is fixed to be set up in the top of casing, the bottom of case is deposited to the pellet has seted up and has been had the discharge port with pellet entry matched with, the inside of case is deposited through discharge port and pellet entry and casing is linked together, be provided with the electrode in discharge port and the pellet entry, the power supply cable of polar plate is connected with high-voltage static generator after passing the lateral wall of casing, the power supply cable of electrode is connected with high-voltage static generator after passing the lateral wall of casing, polar plate and electrode have the same electric charge under high-voltage static generator's effect.
The shot blasting device further comprises a guide screen pipe, the diameter of one end of the shot jet orifice is smaller than that of the other end of the shot jet orifice, one end of the guide screen pipe with larger diameter is fixedly arranged on the shot jet orifice of the shell, a plurality of guide pipes which are arranged in parallel are uniformly arranged in the guide screen pipe, the guide pipes are perpendicular to the polar plates, and the guide pipes are in clearance fit with the shots.
The distance between the near polar plate end of the guide sieve tube and the polar plate is smaller than millimeter.
The middle part of electrode has seted up the track hole that the spiral descends along vertical direction, the track hole is provided with at least three rings of spiral tracks, the diameter of track hole is the diameter of pellet at least twice.
The shot used by the shot blasting device is made of a metal material which is easy to carry charges, and the charges output by the high-voltage electrostatic generator are positive charges.
The shot used by the shot blasting device is made of nonmetallic materials which are easy to carry charges, and the charges output by the high-voltage electrostatic generator are negative charges.
The side wall of the projectile storage box is provided with an air inlet which is communicated with an air outlet of the gas compressor through an air pipe, and the gas provided by the gas compressor is nitrogen.
The device is characterized in that a two-position two-way manual valve and an electrode are arranged between the discharging hole and the pellet inlet, the discharging hole is communicated with a port at the top of the two-position two-way manual valve, and a port at the bottom of the two-position two-way manual valve is communicated with the pellet inlet through a track hole on the electrode.
The shell, the projectile storage box and the inner sides of the guide pipes are uniformly provided with insulating coatings.
The shot blasting device further comprises a holding handle, the holding handle is fixedly arranged on the shell, the length of the guide sieve tube is 20-50cm, the shell is of a cylindrical structure, a polar plate is fixedly arranged on the inner side of one bottom surface of the shell, a shot jet orifice is formed in the other bottom surface of the shell, a shot inlet is formed in the side wall of the shell, and the diameter of the shell is 30-50cm.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the shot blasting device accelerated by an electric field, a polar plate is arranged on one side wall in a shell in the vertical direction, a shot jet orifice is arranged on the opposite side wall of the polar plate, a shot storage box is arranged at the top of the shell, an electrode is arranged at the communication part of the shot storage box and the shell, the electrode and the polar plate are both connected with a high-voltage electrostatic generator, and the shot in the shot storage box is contacted with the electrode to charge and then falls into the shell, and a certain initial speed is obtained under the action of the electric field force between the charged shot and the polar plate with the same charge. Therefore, the design can make the shot obtain a certain initial velocity to carry out shot blasting treatment under the action of the electric field force between the shot and the polar plate.
2. According to the shot blasting device accelerated by the electric field, the guide sieve tube is arranged on the shot jet orifice of the shot blasting device accelerated by the electric field, the guide sieve tube is internally and uniformly provided with the guide tubes which are mutually parallel, each guide tube is perpendicular to the polar plate, the guide tubes are in clearance fit with the shot, the shot is guided by the guide tubes after being accelerated by the electric field force, and is further jetted in a fixed direction, so that the jetting directivity of the shot is strong, meanwhile, the electrode and the polar plate are connected with the high-voltage electrostatic generator through the power supply cable, the weight in the shell is lighter, and an operator can conveniently adjust the position of the shot blasting device when performing shot blasting, so that processing dead angles are avoided. Therefore, the design can guide the shot through the guide screen pipe, so that the shot injection directivity is effectively improved, and meanwhile, an operator can conveniently adjust the position of the shot blasting device, so that the processing dead angle is effectively reduced.
3. According to the shot blasting device accelerated by the electric field, at least three circles of track holes are formed in the electrode, so that the contact time between the shot and the electrode when passing through the electrode is increased, the shot is ensured to obtain enough electric charge, and the problem that the initial speed of the shot is low due to insufficient electric charge is avoided. Therefore, the design can ensure that the projectile obtains enough charge quantity and initial speed through the track hole arranged in the electrode, and effectively improves the working reliability of the system.
4. According to the shot blasting device accelerated by the electric field, charges output by the high-voltage electrostatic generator can be changed to match with shots made of different materials, the high-voltage electrostatic generator outputs positive charges for shots made of metal materials, the high-voltage electrostatic generator outputs negative charges for shots made of nonmetallic materials, the application range of the shots is effectively enlarged, and the shots made of different materials can be selected according to the shot blasting process requirements during operation. Therefore, according to the design, shots with different materials can be selected according to the requirements of the shot blasting process, and the application range is effectively enlarged.
5. According to the shot blasting device accelerated by the electric field, the air inlet is formed in the side wall of the shot storage box, compressed nitrogen can be introduced into the air inlet, the compressed nitrogen can assist the shots in the shot storage box to enter the shell, and air in the shell can be discharged, so that the air is prevented from being ionized, and the working efficiency is reduced. Therefore, the design can discharge air in the shell through compressed nitrogen, avoid the air from being ionized, and effectively prolong the service life of the system.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of another view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
In the figure: the device comprises a shell 1, a pellet inlet 11, a pellet injection port 12, a polar plate 2, a pellet storage box 3, a discharge hole 31, an air inlet 32, a two-position two-way manual valve 33, an electrode 4, a track hole 41, a guide screen pipe 5 and a guide pipe 51.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 3, a shot-peening apparatus accelerated by an electric field, the shot-peening apparatus comprising: a shell 1, a polar plate 2, a projectile storage box 3, an electrode 4 and a high-voltage electrostatic generator; the top of the shell 1 is provided with a pellet inlet 11, one side of the shell 1 is provided with a pellet injection port 12, the pole plate 2 is fixedly arranged on the opposite side of the pellet injection port 12 in the shell 1 in the vertical direction, the pellet storage box 3 is fixedly arranged on the top of the shell 1, the bottom of the pellet storage box 3 is provided with a discharge hole 31 matched with the pellet inlet 11, the inside of the pellet storage box 3 is communicated with the inside of the shell 1 through the discharge hole 31 and the pellet inlet 11, the discharge hole 31 and the pellet inlet 11 are internally provided with an electrode 4, a power supply cable of the pole plate 2 is connected with a high-voltage electrostatic generator after penetrating through the side wall of the shell 1, and the power supply cable of the electrode 4 is connected with the high-voltage electrostatic generator after penetrating through the side wall of the shell 1, and the pole plate 2 and the electrode 4 are provided with the same charge under the action of the high-voltage electrostatic generator.
The shot blasting device further comprises a guide screen pipe 5, the diameter of one end of the shot jet orifice 12 is smaller than that of the other end, one end of the guide screen pipe 5 with larger diameter is fixedly arranged on the shot jet orifice 12 of the shell 1, a plurality of guide pipes 51 which are arranged in parallel are uniformly arranged in the guide screen pipe 5, the guide pipes 51 are perpendicular to the polar plate 2, and the guide pipes 51 are in clearance fit with shots.
The distance between the end of the guide screen 5 near the polar plate 2 and the polar plate 2 is less than 5 mm.
The middle part of the electrode 4 is provided with a spiral descending track hole 41 along the vertical direction, the track hole 41 is provided with at least three spiral tracks, and the diameter of the track hole 41 is at least twice that of the projectile.
The shot used by the shot blasting device is made of a metal material which is easy to carry charges, and the charges output by the high-voltage electrostatic generator are positive charges.
The shot used by the shot blasting device is made of nonmetallic materials which are easy to carry charges, and the charges output by the high-voltage electrostatic generator are negative charges.
An air inlet 32 is formed in the side wall of the projectile storage box 3, the air inlet 32 is communicated with an air outlet of a gas compressor through an air pipe, and the gas provided by the gas compressor is nitrogen.
The two-position two-way manual valve 33 and the electrode 4 are arranged between the discharging hole 31 and the pellet inlet 11, the discharging hole 31 is communicated with a port at the top of the two-position two-way manual valve 33, and a port at the bottom of the two-position two-way manual valve 33 is communicated with the pellet inlet 11 through a track hole 41 on the electrode 4.
The inner sides of the casing 1, the projectile storing box 3 and the respective guide pipes 51 are uniformly provided with insulating coatings.
The shot blasting device further comprises a holding handle, the holding handle is fixedly arranged on the shell 1, the length of the guide screen pipe 5 is 20-50cm, the shell 1 is of a cylindrical structure, a polar plate 2 is fixedly arranged on the inner side of one bottom surface of the shell 1, a shot jet orifice 12 is arranged on the other bottom surface of the shell 1, a shot inlet 11 is arranged on the side wall of the shell 1, and the diameter of the shell 1 is 30-50cm.
The principle of the invention is explained as follows:
when the invention is used, an operator manually loads the shots into the shot storage box 3, adjusts the output charge and voltage quantity of the high-voltage electrostatic generator according to the shot material and the initial speed requirement of the shots required in the shot blasting process, directly faces the outlet of the guide screen pipe 5 to a workpiece needing to be blasted, and opens the two-position two-way manual valve 33, the high-voltage electrostatic generator and the gas compressor;
at this time, compressed gas enters the shell 1 and is discharged from the shell 1, meanwhile, the pellets enter the shell 1 through the track holes 41 on the electrode 4 under the influence of gravity and the compressed gas, when the pellets pass through the track holes 41, the inner walls of the track holes 41 are contacted due to the fact that the track holes 41 are spiral, charges are further carried out, after the pellets enter the shell 1, electric field force is generated between the charged pellets and the polar plate 2 with the same charges, and the pellets are ejected through the outlet of the guide sieve tube 5 under the action of the electric field force;
the invention can make the shot jet at the initial speed of 60-110m/s, and when the shot blasting process requires the use of shots with different specifications or the initial speed of the shots, the shot blasting machine can be adjusted by changing the potential of the polar plate 2.
The shell 1, the pellet inlet 11, the pellet injection port 12, the polar plate 2, the pellet storage box 3, the discharge hole 31, the air inlet 32, the two-position two-way manual valve 33, the electrode 4, the track hole 41, the guide screen pipe 5 and the guide pipe 51
In this design.
Example 1:
a shot-peening apparatus accelerated by an electric field, the shot-peening apparatus comprising: a shell 1, a polar plate 2, a projectile storage box 3, an electrode 4 and a high-voltage electrostatic generator; the top of the shell 1 is provided with a pellet inlet 11, one side of the shell 1 is provided with a pellet injection port 12, the pole plate 2 is fixedly arranged on the opposite side of the pellet injection port 12 in the shell 1 in the vertical direction, the pellet storage box 3 is fixedly arranged on the top of the shell 1, the bottom of the pellet storage box 3 is provided with a discharge hole 31 matched with the pellet inlet 11, the interior of the pellet storage box 3 is communicated with the interior of the shell 1 through the discharge hole 31 and the pellet inlet 11, the discharge hole 31 and the pellet inlet 11 are internally provided with an electrode 4, a power supply cable of the pole plate 2 is connected with a high-voltage electrostatic generator after penetrating through the side wall of the shell 1, and the power supply cable of the electrode 4 is connected with the high-voltage electrostatic generator after penetrating through the side wall of the shell 1, and the pole plate 2 and the electrode 4 have the same charge under the action of the high-voltage electrostatic generator; the shot blasting device further comprises a guide screen pipe 5, the diameter of one end of the shot jet orifice 12 is smaller than that of the other end, one end of the guide screen pipe 5 with larger diameter is fixedly arranged on the shot jet orifice 12 of the shell 1, a plurality of guide pipes 51 which are arranged in parallel are uniformly arranged in the guide screen pipe 5, the guide pipes 51 are perpendicular to the polar plate 2, and the guide pipes 51 are in clearance fit with shots; the distance between the end of the guide screen pipe 5 near the polar plate 2 and the polar plate 2 is less than 5 mm; the middle part of the electrode 4 is provided with a spiral descending track hole 41 along the vertical direction, the track hole 41 is provided with at least three circles of spiral tracks, and the diameter of the track hole 41 is at least twice that of a projectile; the shot used by the shot blasting device is made of a metal material which is easy to carry charges, and the charges output by the high-voltage electrostatic generator are positive charges; the shot used by the shot blasting device is made of nonmetallic materials which are easy to carry charges, and the charges output by the high-voltage electrostatic generator are negative charges; an air inlet 32 is formed in the side wall of the projectile storage box 3, the air inlet 32 is communicated with an air outlet of a gas compressor through an air pipe, and the gas provided by the gas compressor is nitrogen; a two-position two-way manual valve 33 and an electrode 4 are arranged between the discharge hole 31 and the pellet inlet 11, the discharge hole 31 is communicated with a port at the top of the two-position two-way manual valve 33, and a port at the bottom of the two-position two-way manual valve 33 is communicated with the pellet inlet 11 through a track hole 41 on the electrode 4; the inner sides of the casing 1, the projectile storing box 3 and the respective guide pipes 51 are uniformly provided with insulating coatings.
Example 2:
example 2 is substantially the same as example 1 except that:
the shot blasting device further comprises a holding handle, the holding handle is fixedly arranged on the shell 1, the length of the guide screen pipe 5 is 20-50cm, the shell 1 is of a cylindrical structure, a polar plate 2 is fixedly arranged on the inner side of one bottom surface of the shell 1, a shot jet orifice 12 is arranged on the other bottom surface of the shell 1, a shot inlet 11 is arranged on the side wall of the shell 1, and the diameter of the shell 1 is 30-50cm.
Example 3:
example 3 is substantially the same as example 2 except that:
the mass of the pellet is 10 -4 kg, charge obtained after passing the pellets through the electrode 4 was 8.16 x 10 -6 C, the potential of the polar plate 2 is 30KV, and the following can be obtained:
wherein V is the initial velocity of the projectile, U is the electrode plate voltage, m is the mass of the projectile, and the initial velocity of the projectile is calculated to be 70m/s.
Claims (9)
1. A shot-peening apparatus accelerated by an electric field, characterized in that:
the shot-peening apparatus includes: the device comprises a shell (1), a polar plate (2), a projectile storage box (3), an electrode (4), a guide screen pipe (5) and a high-voltage electrostatic generator; the utility model discloses a high-voltage electrostatic screen, which is characterized in that a pellet inlet (11) is formed in the top of a shell (1), a pellet injection port (12) is formed in one side of the shell (1), the diameter of one end of the pellet injection port (12) is smaller than that of the other end, a pole plate (2) is fixedly arranged on the opposite side of the pellet injection port (12) in the shell (1) in the vertical direction, a pellet storage box (3) is fixedly arranged on the top of the shell (1), a discharge hole (31) matched with the pellet inlet (11) is formed in the bottom of the pellet storage box (3), the inside of the pellet storage box (3) is communicated with the inside of the shell (1) through the discharge hole (31) and the pellet inlet (11), an electrode (4) is arranged in the discharge hole (31) and the pellet inlet (11), a power supply cable of the pole plate (2) penetrates through the side wall of the shell (1) and then is connected with a high-voltage electrostatic generator, the power supply cable of the electrode (4) penetrates through the side wall of the shell (1) and then is connected with the high-voltage electrostatic generator, the pole plate (2) and the electrode (4) is uniformly arranged on one end of the same in the guide tube (5) with the diameter of the guide tube (1), the guide pipes (51) are perpendicular to the polar plates (2), and the guide pipes (51) are in clearance fit with the projectile.
2. A shot-peening apparatus accelerated by an electric field according to claim 1, wherein:
the distance between the end of the guide screen pipe (5) close to the polar plate (2) and the polar plate (2) is less than 5 mm.
3. A shot-peening apparatus according to claim 2, wherein the shot-peening apparatus is accelerated by an electric field, wherein:
the middle part of electrode (4) has seted up track hole (41) that spiral descends along vertical direction, track hole (41) are provided with at least three rings of spiral tracks, the diameter of track hole (41) is the diameter of pellet at least twice.
4. A shot-peening apparatus according to claim 3, wherein the shot-peening apparatus is accelerated by an electric field, wherein:
the shot used by the shot blasting device is made of a metal material which is easy to carry charges, and the charges output by the high-voltage electrostatic generator are positive charges.
5. A shot-peening apparatus according to claim 3, wherein the shot-peening apparatus is accelerated by an electric field, wherein:
the shot used by the shot blasting device is made of nonmetallic materials which are easy to carry charges, and the charges output by the high-voltage electrostatic generator are negative charges.
6. A shot-peening apparatus according to any one of claims 1 to 5, wherein the shot-peening apparatus is accelerated by an electric field, wherein:
an air inlet (32) is formed in the side wall of the projectile storage box (3), the air inlet (32) is communicated with an air outlet of a gas compressor through an air pipe, and gas provided by the gas compressor is nitrogen.
7. A shot-peening apparatus according to claim 6, wherein the shot-peening apparatus is accelerated by an electric field, wherein:
two-position two-way manual valve (33) and electrode (4) are arranged between the discharging hole (31) and the pellet inlet (11), the discharging hole (31) is communicated with the inlet at the top of the two-position two-way manual valve (33), and the inlet at the bottom of the two-position two-way manual valve (33) is communicated with the pellet inlet (11) through a track hole (41) on the electrode (4).
8. A shot-peening apparatus according to claim 7, wherein the shot-peening apparatus is accelerated by an electric field, wherein:
the shell (1), the projectile storage box (3) and the inner sides of the guide pipes (51) are uniformly provided with insulating coatings.
9. A shot-peening apparatus according to claim 8, wherein the shot-peening apparatus is accelerated by an electric field, wherein:
the shot blasting device further comprises a holding handle, the holding handle is fixedly arranged on the shell (1), the length of the guide screen pipe (5) is 20-50cm, the shell (1) is of a cylindrical structure, a pole plate (2) is fixedly arranged on the inner side of one bottom surface of the shell (1), a shot jet orifice (12) is formed in the other bottom surface of the shell (1), a shot inlet (11) is formed in the side wall of the shell (1), and the diameter of the shell (1) is 30-50cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210988795.6A CN115401621B (en) | 2022-08-17 | 2022-08-17 | Shot blasting device accelerated by electric field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210988795.6A CN115401621B (en) | 2022-08-17 | 2022-08-17 | Shot blasting device accelerated by electric field |
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| CN115401621A CN115401621A (en) | 2022-11-29 |
| CN115401621B true CN115401621B (en) | 2023-06-23 |
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| US5795626A (en) * | 1995-04-28 | 1998-08-18 | Innovative Technology Inc. | Coating or ablation applicator with a debris recovery attachment |
| JP2010115729A (en) * | 2008-11-11 | 2010-05-27 | Murata Machinery Ltd | Projection material injection device and surface treating apparatus |
| CN110740817A (en) * | 2017-04-04 | 2020-01-31 | 克林罗洁有限责任公司 | Passive electrostatic CO2Composite spray applicator |
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| CN115401621A (en) | 2022-11-29 |
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