CN117816654A - Synchronous atmosphere protection device for pulse laser cleaning - Google Patents
Synchronous atmosphere protection device for pulse laser cleaning Download PDFInfo
- Publication number
- CN117816654A CN117816654A CN202410123820.3A CN202410123820A CN117816654A CN 117816654 A CN117816654 A CN 117816654A CN 202410123820 A CN202410123820 A CN 202410123820A CN 117816654 A CN117816654 A CN 117816654A
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- Prior art keywords
- protective cover
- laser cleaning
- cover
- protection device
- light path
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- 238000004140 cleaning Methods 0.000 title claims abstract description 35
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims abstract description 75
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- 239000002184 metal Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 31
- 239000010410 layer Substances 0.000 description 17
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000758 substrate Substances 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention provides a synchronous atmosphere protection device for pulse laser cleaning, and belongs to the technical field of laser cleaning. The laser head is arranged at the upper end of the optical path cylinder, an inner layer protection cover is fixedly connected to the lower end of the optical path cylinder, a channel cavity is formed in the optical path cylinder, the air inlet structure is arranged on the inner layer protection cover, the air inlet structure can uniformly send protection gas into the inner layer protection cover, the air outlet pipe is fixedly connected to the inner layer protection cover, the air outlet pipe is communicated with the inner layer protection cover, and the protection lens is arranged in the channel cavity. According to the invention, a temporary sealed atmosphere protection chamber can be formed on the surface of the metal to be cleaned, so that the utilization rate of the protective gas in the cleaning process is improved, and a better laser cleaning effect is obtained.
Description
Technical Field
The invention belongs to the technical field of laser cleaning, and relates to a synchronous atmosphere protection device for pulse laser cleaning.
Background
Laser Cleaning (Laser Cleaning) is a technique that uses a Laser beam to clean the surface of an object. The method is characterized in that substances such as dirt, oxide layers, coatings and the like on the surface of an object to be cleaned are instantaneously evaporated or melted through the processes such as thermal vibration, ablation and the like of a high-energy laser beam, so that the aim of cleaning is fulfilled. The current laser cleaning technology can reliably clean the surfaces of a large number of different substrates, such as titanium alloy, aluminum alloy, ceramics, glass and the like, and is widely applied to the fields of aerospace, high-speed rail, ships, automobiles and the like. Compared with the traditional pollutant cleaning technology, the laser cleaning method comprises the methods of mechanical grinding, sand blasting, water spraying, acid washing and the like, and has the advantages of high efficiency, high precision, good cleaning effect, wide application range, non-contact and the like.
In the process of laser cleaning, oxidation phenomenon on the surface of a base material is unavoidable because of the instantaneous heating and cooling effects of laser on the metal surface and the direct contact of an object to be cleaned with air. To reduce oxidation of the substrate during cleaning, the substrate is typically placed in a container, and then an inert gas (e.g., argon or nitrogen) is introduced into the container to form a protective layer on the surface of the substrate, thereby limiting the size of the object to be cleaned (which needs to be placed inside the container).
Disclosure of Invention
The invention aims at solving the problems in the prior art, and provides a synchronous atmosphere protection device for pulse laser cleaning, which can form a temporary sealed atmosphere protection chamber on the surface of a metal to be cleaned, improve the utilization rate of protective gas in the cleaning process and further obtain a better laser cleaning effect.
The aim of the invention can be achieved by the following technical scheme:
a synchronous atmosphere protection device for pulse laser cleaning, comprising a laser head, further comprising: the laser head is arranged at the upper end of the optical path barrel, the lower end of the optical path barrel is fixedly connected with an inner layer protection cover, and a channel cavity is arranged in the optical path barrel;
the air inlet structure is arranged on the inner-layer protective cover and can uniformly send protective gas into the inner-layer protective cover;
the exhaust pipe is fixedly connected to the inner protective cover and is communicated with the inside of the inner protective cover;
and the protective lens is arranged in the channel cavity.
Preferably, the air intake structure includes:
the outer protective cover is fixedly arranged at the outer side of the lower end of the light path barrel and is positioned at the outer side of the inner protective cover;
the connecting plate is fixedly arranged between the lower side edge of the outer protective cover and the lower side edge of the inner protective cover, the connecting plate is annular, and a transition cavity is formed between the outer protective cover and the inner protective cover;
the air inlet pipe is fixedly connected to the outer layer protective cover and is communicated with the transition cavity;
the air holes are uniformly formed in the lower side of the inner-layer protection cover along the circumferential direction and are communicated with the transition cavity.
Preferably, a Laval nozzle is arranged in the air guide hole.
Preferably, a spiral air guide plate is arranged on the inner side wall of the inner layer protection cover.
Preferably, the annular concave shoulder is arranged on the inner side wall of the lower end of the light path barrel, the fixing ring is arranged on the outer side of the protective lens and can slide into the light path barrel along the annular concave shoulder, the light path barrel is provided with a fixing structure, and the protective lens can be fixed at the bottom of the annular concave shoulder by the fixing structure.
Preferably, the fixing structure includes:
the two studs are in threaded connection with the side wall of the light path barrel, the inner ends of the studs extend into the annular concave shoulders, limiting blocks are arranged at the ends of the studs, a second inclined plane is arranged on one side, close to the channel cavity, of each limiting block, the outer ends of the studs extend to the outer side of the light path barrel, and an operating rod is arranged at the end of each stud;
the first annular inclined plane is arranged on the outer side face of the fixing ring, and the first annular inclined plane and the second inclined plane can be mutually attached.
Preferably, a rubber ring is arranged at the bottom of the annular concave shoulder.
Preferably, the lower side of the connecting plate is provided with a circular ring.
Preferably, the lower side of inlayer safety cover is last to be equipped with the rubber circle, the outside level of outer safety cover lower side is equipped with four fixed plates, it has the rotor plate to articulate on the fixed plate, vertical the inserting is equipped with the slide bar on the rotor plate, the upper and lower extreme of slide bar is equipped with roof and movable block respectively, and the cover is equipped with compression spring on the slide bar that is located between roof and the rotor plate, the downside of movable block is inlayed and is equipped with the ball.
Compared with the prior art, the invention has the following advantages:
1. before cleaning, protective gas is continuously introduced into the transition cavity through the gas inlet pipe, and after the gas in the transition cavity is filled, the protective gas uniformly flows into the inner layer protection cover through the gas guide holes, and the gas guide holes are uniformly distributed along the circumferential direction of the inner layer protection cover, so that after the surface of metal to be cleaned is filled with the protective gas, a laser head is started to clean pollutants, and an air extractor connected with the gas outlet pipe is started at the same time, so that the cleaned pollutant gas is timely pumped away, the purity of the protective gas in the inner layer protection cover is ensured, and a better laser cleaning effect is obtained;
2. the lower end of the light path cylinder is communicated with the inner layer protection cover, so that the arrangement of the protection lens can not only prevent the laser head from being damaged by pollutant gas, but also ensure the tightness in the inner layer protection cover; in addition, the protective lens can be replaced according to the requirement, and the protective lens can be poured out from the lower end of the light path barrel only by rotating the stud outwards to separate the limiting block from the fixed ring;
3. when the metal surface needs to be continuously cleaned, the circular ring or the ball can be arranged on the lower side face of the connecting plate, so that the sliding resistance of the connecting plate is reduced, the leakage of the protective gas can be avoided, and the utilization rate of the protective gas is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view at A-A in FIG. 2;
FIG. 4 is a partial enlarged view at B in FIG. 3;
FIG. 5 is a schematic view of the installation of a Laval nozzle;
fig. 6 is a schematic structural view of a second embodiment;
fig. 7 is a schematic structural view of a third embodiment;
fig. 8 is a partial enlarged view at C in fig. 7.
In the figure, 1, a laser head; 2. an optical path tube; 21. a channel cavity; 22. an annular concave shoulder; 221. a rubber ring; 3. protecting the lens; 31. a fixing ring; 311. a first annular ramp; 4. an outer protective cover; 41. an air inlet pipe; 42. a transition chamber; 5. a connecting plate; 51. a circular ring; 6. an inner layer protective cover; 61. an exhaust pipe; 62. a spiral air guide plate; 63. an air guide hole; 631. a laval nozzle; 64. a rubber tube; 7. a stud; 71. a limiting block; 711. a second inclined surface; 72. an operation lever; 8. a fixing plate; 81. a rotating plate; 811. perforating; 82. a slide bar; 821. a top plate; 822. a compression spring; 823. a moving block; 824. and (3) rolling balls.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Embodiment one:
as shown in fig. 1 to 5, a synchronous atmosphere protection device for pulse laser cleaning comprises a laser head 1, a light path barrel 2, an exhaust pipe 61, a protection lens 3 and an air inlet structure, wherein the laser head 1 is arranged at the upper end of the light path barrel 2, an inner protection cover 6 is fixedly connected to the lower end of the light path barrel 2, preferably, the inner protection cover 6 is hemispherical, and a channel cavity 21 is arranged in the light path barrel 2.
The exhaust pipe 61 is fixedly connected to the inner protective cover 6, one end of the exhaust pipe 61 is communicated with the inside of the inner protective cover 6, and the other end of the exhaust pipe is connected with an external air extractor.
The protective lens 3 is arranged in the channel cavity 21.
The air inlet structure is arranged on the inner protective cover 6 and comprises an outer protective cover 4, a connecting plate 5, an air inlet pipe 41 and a plurality of air guide holes 63.
The outer protective cover 4 is fixedly arranged at the outer side of the lower end of the light path barrel 2, preferably, the outer protective cover 4 is also hemispherical, and the outer protective cover 4 is positioned at the outer side of the inner protective cover 6.
The connecting plate 5 is fixedly arranged between the lower side edge of the outer protective cover 4 and the lower side edge of the inner protective cover 6, the connecting plate 5 is annular, and a transition cavity 42 is formed between the outer protective cover 4 and the inner protective cover 6.
Preferably, the thickness of the transition chamber 42 is about 20mm, so as to avoid excessive shielding gas remaining in the transition chamber 42 and perform the gas buffering transition function.
The air guide holes 63 are uniformly formed in the circumferential direction at the lower side of the inner protective cover 6 and are communicated with the bottom of the transition cavity 42.
The air inlet pipe 41 is fixedly connected to the outer protective cover 4, one end of the air inlet pipe 41 is communicated with the transition cavity 42, and the other end of the air inlet pipe is connected with the protective gas generating equipment. Preferably, the air inlet pipe 41 is communicated with the top of the transition cavity 42, so that the whole transition cavity 42 can be filled with the protective gas, and then the protective gas uniformly enters the inner protective cover 6 from the peripheral air guide holes 63.
Before cleaning, protective gas (such as argon or nitrogen) is continuously introduced into the transition cavity 42 through the air inlet pipe 41, the protective gas is inert gas (such as argon or nitrogen) and uniformly flows into the inner protective cover 6 through the air guide holes 63 after the gas in the transition cavity 42 is filled, and the air guide holes 63 are uniformly distributed along the circumferential direction of the inner protective cover 6, so that after the surface of metal to be cleaned is filled with the protective gas, the laser head 1 is started to clean pollutants, and meanwhile, an air extractor connected with the air exhaust pipe 61 is started to timely extract the cleaned pollutant gas, thereby ensuring the purity of the protective gas in the inner protective cover 6 and obtaining better laser cleaning effect; in addition, be handheld in this device, low cost, easy operation, the operator only need handheld light path section of thick bamboo 2, makes laser head 1 follow and waits to wash metal surface and remove, just can enlarge atmosphere protection area, satisfies the washing requirement of different size metals, improves laser cleaning quality.
Preferably, a laval nozzle 631 is installed in the air guide hole 63, and the air inlet of the nozzle is contracted from large to small to the middle to a narrow throat, and then the narrow throat is expanded from small to large to the outside. The protective gas flows into the air inlet of the nozzle under the pressure of the gas, passes through the narrow throat and is sprayed into the inner protective cover 6 through the air outlet, and the nozzle structure can enable the protective gas to uniformly and rapidly fill the surface of the metal to be cleaned.
Preferably, the inner side wall of the inner layer protection cover 6 is provided with a spiral air guide plate 62, a plurality of air guide holes 63 are positioned below the lower end of the spiral air guide plate 62, the exhaust pipe 61 is positioned at the upper end of the spiral air guide plate 62, plays a role in guiding the protection inside the inner layer protection cover 6, and can efficiently and smoothly exhaust the protection gases.
In this embodiment, as shown in fig. 4, an annular concave shoulder 22 is formed on the inner side wall of the lower end of the light path barrel 2, a fixing ring 31 is disposed on the outer side of the protective lens 3, the fixing ring 31 can slide into the light path barrel 2 along the annular concave shoulder 22, and a fixing structure is disposed on the light path barrel 2 and comprises two studs 7 and a first annular inclined surface 311.
The two studs 7 are in threaded connection on the side wall of the light path barrel 2, the inner ends of the studs 7 extend into the annular concave shoulders 22, limiting blocks 71 are arranged at the end parts of the studs, a second inclined surface 711 is arranged on one side, close to the channel cavity 21, of each limiting block 71, the outer ends of the studs 7 extend to the outer side of the light path barrel 2, and operating rods 72 are arranged at the end parts of the studs.
The first annular inclined plane 311 is formed on the outer side surface of the fixing ring 31, the first annular inclined plane 31 and the second inclined plane 711 can be mutually attached, the first annular inclined plane 31 is inclined to the protective lens 3 from top to bottom in sequence, and the second inclined plane 711 is inclined to the side wall of the annular concave shoulder 22 from bottom to top in sequence.
The lower end of the light path barrel 2 is communicated with the inner layer protection cover 6, so that the arrangement of the protection lens 3 can not only prevent the laser head from being damaged by pollutant gas, but also ensure the tightness in the inner layer protection cover 6; in addition, the protective lens 3 can be replaced according to the requirement, and the protective lens 3 can be poured downwards only by rotating the stud 7 outwards to separate the limiting block 71 from the fixing ring 31.
Preferably, a rubber ring 221 is provided at the bottom of the annular concave shoulder 22, and when the stopper 71 presses the fixing ring 31 on the outer side of the protective lens 3, the fixing ring 31 is pressed to move upwards to contact with the pressing rubber ring 221, so as to perform a better sealing function.
Embodiment two:
the second embodiment is basically the same as the first embodiment, and is different in that, as shown in fig. 6, a circular ring 51 is disposed on the lower side surface of the connecting plate 5, the cross section of the circular ring 51 is semicircular, when the circular ring 51 contacts the surface of the metal to be cleaned, a sealing effect can be achieved, and when the laser head 1 moves, the circular ring 51 can reduce the friction force with the surface of the metal to be cleaned, so that the laser head 1 can move smoothly as required.
Embodiment III:
as shown in fig. 7-8, the lower side edge of the inner protection cover 6 is provided with a rubber tube 64, preferably, the rubber tube 64 is in a flared horn shape, the outer side of the lower side edge of the outer protection cover 4 is horizontally provided with four fixing plates 8, the fixing plates 8 are hinged with rotating plates 81, the rotating plates 81 are provided with through holes 811, sliding rods 82 are inserted in the through holes 811, the upper end and the lower end of each sliding rod 82 are respectively provided with a top plate 821 and a moving block 823, each sliding rod 82 positioned between the top plate 821 and the corresponding rotating plate 81 is sleeved with a compression spring 822, the lower side surface of each moving block 823 is embedded with a ball 824, and the balls 824 can roll in any direction.
In the initial state, under the action of the compression spring 822, the lower side surface of the ball 824 is lower than the lower side edge of the rubber tube 64, at this time, the laser head 1 can be moved at any position as required, and after moving to a designated position, the compression spring 822 is slightly forced downwards, so that the compression spring 822 is stretched, the sliding rod 82 drives the moving block 823 and the ball 824 to slide upwards, and then the lower side edge of the rubber tube 64 contacts the metal surface to be cleaned, so that the sealing effect is achieved. When the laser head 1 needs to be moved again, downward pressure is removed, and under the action of the compression spring 822, the sliding rod 82 drives the moving block 823 and the ball 824 to move downwards, so that the ball 824 contacts the metal surface to be cleaned, and the movement is convenient.
Claims (9)
1. Synchronous atmosphere protection device for pulse laser cleaning, including laser head (1), characterized by still includes: the laser head (1) is arranged at the upper end of the optical path barrel (2), an inner layer protection cover (6) is fixedly connected to the lower end of the optical path barrel (2), and a channel cavity (21) is arranged in the optical path barrel (2);
the air inlet structure is arranged on the inner-layer protection cover (6) and can uniformly send the protection gas into the inner-layer protection cover (6);
the exhaust pipe (61) is fixedly connected to the inner-layer protection cover (6), and the exhaust pipe (61) is communicated with the inside of the inner-layer protection cover (6);
and the protective lens (3) is arranged in the channel cavity (21).
2. A synchronous atmosphere protection device for pulsed laser cleaning according to claim 1, wherein the air intake structure comprises:
the outer protective cover (4) is fixedly arranged at the outer side of the lower end of the light path tube (2), and the outer protective cover (4) is positioned at the outer side of the inner protective cover (6);
the connecting plate (5), the connecting plate (5) is fixedly arranged between the lower side edge of the outer protective cover (4) and the lower side edge of the inner protective cover (6), the connecting plate (5) is annular, and a transition cavity (42) is formed between the outer protective cover (4) and the inner protective cover (6);
the air inlet pipe (41) is fixedly connected to the outer-layer protective cover (4), and the air inlet pipe (41) is communicated with the transition cavity (42);
the air holes (63) are uniformly formed in the lower side of the inner-layer protection cover (6) along the circumferential direction and are communicated with the transition cavity (42).
3. A synchronous atmosphere protection device for pulsed laser cleaning according to claim 2, characterized in that a laval nozzle (631) is mounted in the gas vent (63).
4. A synchronous atmosphere protecting device for pulse laser cleaning according to claim 3, characterized in that a spiral air guide plate (62) is provided on the inner side wall of the inner protective cover (6).
5. The synchronous atmosphere protection device for pulse laser cleaning according to claim 1, wherein an annular concave shoulder (22) is formed on the inner side wall of the lower end of the light path barrel (2), a fixing ring (31) is arranged on the outer side of the protective lens (3), the fixing ring (31) can slide into the light path barrel (2) along the annular concave shoulder (22), and a fixing structure is arranged on the light path barrel (2) and can fix the protective lens (3) at the bottom of the annular concave shoulder (22).
6. The apparatus of claim 5, wherein the stationary structure comprises:
the two studs (7) are in threaded connection with the side wall of the light path barrel (2), the inner ends of the studs (7) extend into the annular concave shoulders (22) and the end parts of the studs are provided with limiting blocks (71), one side, close to the channel cavity (21), of each limiting block (71) is provided with a second inclined surface (711), the outer ends of the studs (7) extend to the outer side of the light path barrel (2), and the end parts of the studs are provided with operating rods (72);
the first annular inclined plane (311), first annular inclined plane (311) is seted up on the lateral surface of retainer plate (31), first annular inclined plane (31) and second inclined plane (711) can laminate each other.
7. A synchronous atmosphere protection device for pulsed laser cleaning according to claim 6, characterized in that the bottom of the annular concave shoulder (22) is provided with a rubber ring (221).
8. A synchronous atmosphere protection device for pulsed laser cleaning according to claim 4, characterized in that the underside of the connection plate (5) is provided with a circular ring (51).
9. The synchronous atmosphere protection device for pulse laser cleaning according to claim 4, wherein a rubber tube (64) is arranged on the lower side edge of the inner protective cover (6), four fixing plates (8) are horizontally arranged on the outer side of the lower side edge of the outer protective cover (4), a rotating plate (81) is hinged on the fixing plates (8), sliding rods (82) are vertically inserted in the rotating plate (81), top plates (821) and moving blocks (823) are respectively arranged at the upper end and the lower end of the sliding rods (82), compression springs (822) are sleeved on the sliding rods (82) between the top plates (821) and the rotating plate (81), and balls (824) are embedded on the lower side faces of the moving blocks (823).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410123820.3A CN117816654A (en) | 2024-01-26 | 2024-01-26 | Synchronous atmosphere protection device for pulse laser cleaning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410123820.3A CN117816654A (en) | 2024-01-26 | 2024-01-26 | Synchronous atmosphere protection device for pulse laser cleaning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117816654A true CN117816654A (en) | 2024-04-05 |
Family
ID=90509739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410123820.3A Pending CN117816654A (en) | 2024-01-26 | 2024-01-26 | Synchronous atmosphere protection device for pulse laser cleaning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117816654A (en) |
-
2024
- 2024-01-26 CN CN202410123820.3A patent/CN117816654A/en active Pending
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