CN220678307U - Spraying device for aluminum oxide coating - Google Patents
Spraying device for aluminum oxide coating Download PDFInfo
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- CN220678307U CN220678307U CN202322314869.0U CN202322314869U CN220678307U CN 220678307 U CN220678307 U CN 220678307U CN 202322314869 U CN202322314869 U CN 202322314869U CN 220678307 U CN220678307 U CN 220678307U
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- Prior art keywords
- spraying
- conveying mechanism
- atomization reaction
- box
- reaction cavity
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- 238000005507 spraying Methods 0.000 title claims abstract description 83
- 239000011248 coating agent Substances 0.000 title claims abstract description 45
- 238000000576 coating method Methods 0.000 title claims abstract description 45
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 title claims description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 59
- 239000000843 powder Substances 0.000 claims abstract description 59
- 238000000889 atomisation Methods 0.000 claims abstract description 56
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000001257 hydrogen Substances 0.000 claims description 37
- 229910052739 hydrogen Inorganic materials 0.000 claims description 37
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 36
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 239000003566 sealing material Substances 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 23
- 235000012239 silicon dioxide Nutrition 0.000 description 22
- 239000010453 quartz Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 4
- 229910001863 barium hydroxide Inorganic materials 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- Nozzles (AREA)
Abstract
The application discloses a spraying device for an alumina coating, which comprises a spraying box, a conveying mechanism and a conveying mechanism, wherein the conveying mechanism and the conveying mechanism are connected with the spraying box, a spraying system is arranged in the spraying box, the conveying mechanism is used for conveying a sample of the coating to be sprayed into the spraying box, and the conveying mechanism is used for conveying alumina powder which can be atomized at a high temperature into the spraying system; the spraying system is internally provided with an atomization reaction cavity capable of sliding in the vertical direction, the atomization reaction cavity is used for atomizing alumina powder, a turntable is arranged in the spraying box, and a sample can rotate along with the turntable. By the mode, a layer of uniform and good-adhesiveness alumina coating can be formed on the surface of the sample under the action of the movement of the nozzle and the rotation of the turntable.
Description
Technical Field
The application relates to the technical field of material processing, in particular to a spraying device for an alumina coating.
Background
The quartz crucible can gradually become silicon dioxide crystals when meeting high temperature in the use process, so that the crucible is abnormal and cannot be reused. At present, common abnormal types in the use process of the quartz crucible are as follows: swelling, silicon leakage, deformation and edge collapse, low unit yield and the like, in order to prolong the service life of the quartz crucible, the problem that the quartz crucible is abnormal in the use process is solved by adopting a mode of preparing a barium hydroxide coating on the surface of the quartz crucible in the prior art, but the problem of abnormal use still exists when the crucible is used at a high temperature due to the low melting point of the barium hydroxide coating.
In the prior art, a device for coating barium hydroxide on a quartz crucible is disclosed in patent document with publication number CN102336527B, and comprises a spraying system, a quartz crucible rotating supporting mechanism and an atomizing nozzle up-and-down reciprocating mechanism, wherein the spraying system comprises a liquid medicine circulating heating mechanism, a nitrogen protection mechanism, a liquid supply mechanism and a carbon dioxide supply mechanism, and by the mode, uniform barium hydroxide coating is formed on the surface of the quartz crucible. Although the above technical solution can achieve the purpose of improving the surface performance of the quartz crucible, the structure of the device is complex, the operation in the process of forming the coating is complex, and the defect of abnormal use of the quartz crucible is limited.
Disclosure of Invention
In order to solve at least one of the above technical problems, a spray device for an alumina coating is developed.
The spraying device for the aluminum oxide coating comprises a spraying box, a conveying mechanism and a conveying mechanism, wherein the conveying mechanism and the conveying mechanism are connected with the spraying box, a spraying system is arranged in the spraying box, the conveying mechanism is used for conveying a sample of the coating to be sprayed into the spraying box, and the conveying mechanism is used for conveying aluminum oxide powder which can be atomized at a high temperature into the spraying system;
the spraying system is internally provided with an atomization reaction cavity capable of sliding in the vertical direction, the atomization reaction cavity is used for atomizing the alumina powder, a turntable is arranged in the spraying box, and the sample can rotate along with the turntable.
In the above technical scheme, optionally, the spraying system is including setting up the sliding platform of spraying case's box inner wall and setting are in on the sliding platform the atomizing reaction chamber, one side of atomizing reaction chamber is equipped with the nozzle, the inner chamber in atomizing reaction chamber is equipped with ignition structure.
In the above technical scheme, optionally, the sliding platform is "C-shaped", the atomization reaction chamber is connected with a driving mechanism, and the driving mechanism is used for driving the atomization reaction chamber to slide on the sliding platform.
In the above technical solution, optionally, two first guide rails are symmetrically arranged on the inner wall of the side, far away from the box, of the sliding platform, and a second guide rail is arranged between the two first guide rails; grooves matched with the two first guide rails are formed in corresponding positions of the atomization reaction cavity, and a sliding block capable of sliding in the first guide rails is arranged between the grooves and the first guide rails.
In the above technical scheme, optionally, a lifting protection door is arranged on one side of the box body close to the conveying mechanism, and an observation window is arranged on the side surface of the box body.
In the above technical solution, optionally, a protrusion is formed between two grooves on the atomization reaction chamber by protruding outwards, and the second guide rail penetrates through the protrusion.
In the above technical scheme, optionally, one side of the box body is connected with the conveying mechanism, the conveying mechanism includes a hydrogen pipeline and a powder feeding pipeline, which are communicated with the atomization reaction cavity, and the other ends of the hydrogen pipeline and the powder feeding pipeline are connected with the control box.
In the above technical scheme, optionally, a power supply, a hydrogen switch for controlling the working state of the hydrogen pipeline, a powder feeding switch for controlling the working state of the powder feeding pipeline, an air flow regulating switch for regulating the powder feeding amount, a current regulating switch, an air flow regulating meter, a current regulating meter and an automatic spraying switch for realizing automatic spraying are arranged on the control box.
In the above technical scheme, optionally, the conveying mechanism is disposed on one side of the box body, where the lifting protective door is disposed, and includes a plurality of parallel rotating shafts and a driving assembly for driving the rotating shafts to rotate.
In the above technical solution, optionally, a fixing mechanism for fixing the sample is provided on the turntable; and the hydrogen pipeline and one side, close to the bottom end of the sliding platform, of the powder feeding pipeline are sealed with the sliding platform through a sealing material.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. according to the spraying device for the alumina coating, the guide rail is arranged in the spraying system, and the atomization reaction cavity is in sliding connection with the guide rail, so that the movement of the atomization reaction cavity in the vertical direction is realized, and the position of the nozzle in the vertical direction when spraying alumina powder is changed; the rotatable turntable is arranged in the spraying box, so that the sample is driven to rotate by the rotation of the turntable, and alumina powder is sprayed at different angles of the sample. Under the sliding action of the atomization reaction cavity and the rotating action of the rotary table, an alumina coating which is uniform and good in adhesiveness is formed on the surface of a sample, and meanwhile, the spraying device for the alumina coating, which is simple in structure, strong in practicability and simple to operate, is provided.
2. The application provides a spraying device for alumina coating is linked together through making powder pipeline and hydrogen pipeline and atomization reaction chamber to utilize the slip of atomization reaction chamber on slide platform, drive powder pipeline and hydrogen pipeline motion, and set up the ignition structure that ignites hydrogen in the atomization reaction chamber, can utilize the combustion reaction of hydrogen in the atomization reaction chamber to provide high temperature environment, thereby can make the powder atomized fast after follow-up powder that lets in.
3. The utility model provides a spraying device for alumina coating through setting up the switch that can control the operating condition of hydrogen pipeline and powder pipeline on the control box to and adjust the air current regulating switch and the air current regulating table that send powder volume, but accurate control carries hydrogen volume and powder volume in the atomization reaction chamber, makes the spraying process more controllable, in order to ensure that the adhesion between alumina coating and the sample on sample surface is better.
Drawings
FIG. 1 is a spray apparatus for alumina coating of the present application;
FIG. 2 is a schematic view of the structure of the inside of the case of the present application;
FIG. 3 is a schematic structural view of the sliding platform, the atomization reaction chamber and the powder feeding pipeline of the present application;
fig. 4 is a schematic structural view of the atomization reaction chamber of the present application.
Reference numerals illustrate: 100. a spraying device for the alumina coating; 10. a spraying box; 101. a sample; 102. a turntable; 103. lifting the protective door; 104. an observation window; 11. a case; 111. a first guide rail; 112. a second guide rail; 12. a sliding platform; 13. an atomization reaction chamber; 131. a nozzle; 132. a groove; 133. a bump; 14. a driving mechanism; 20. a conveying mechanism; 30. a conveying mechanism; 31. a hydrogen pipe; 32. a powder feeding pipeline; 33. a control box; 331. a power supply; 332. a hydrogen switch; 333. a powder feeding switch; 334. an air flow regulating switch; 335. a current regulating switch; 336. an airflow adjustment gauge; 337. a current regulation meter; 338. and (5) automatically spraying a switch.
Detailed Description
The present application is described in further detail below with reference to the drawings and examples.
The application designs a spraying device 100 for an alumina coating, which comprises a spraying box 10, a conveying mechanism 30 and a conveying mechanism 20, wherein the conveying mechanism 30 and the conveying mechanism 20 are connected with the spraying box 10, the conveying mechanism 20 is used for conveying a sample 101 of the coating to be sprayed into the spraying box 10, and the conveying mechanism 30 is used for conveying alumina powder which can be atomized at a high temperature into the spraying box 10; the spraying box 10 is internally provided with a spraying system, an atomization reaction cavity 13 capable of moving in the vertical direction is arranged in the spraying system, a rotary table 102 is arranged at the position of the spraying box 10 where the sample 101 is placed, and a layer of uniform and good-adhesiveness alumina coating can be formed on the surface of the sample 101 under the action of the movement of the nozzle 131 and the rotation of the rotary table 102.
In some embodiments, the spraying box 10 includes a box 11 and a spraying system disposed on an inner wall of the box 11, a lifting protective door 103 is disposed on the box 11 to prevent alumina powder from splashing during spraying, a rotatable turntable 102 is disposed at the bottom of the box 11, and the turntable 102 drives the sample 101 to rotate during rotation, so that alumina powder can be sprayed around the sample 101; in order to facilitate observation of the spraying condition of the alumina powder, an observation window 104 is arranged on the side surface of the box 11 so as to facilitate real-time adjustment of the air inflow of the alumina powder; in particular, in order to prevent the sample 101 from sliding off the turntable 102 during rotation, a fixing mechanism (not shown) is provided on the turntable 102 to fix the sample 101; one side of the box body 11 is connected with a conveying mechanism 30, the conveying mechanism 30 comprises a hydrogen pipeline 31 and a powder conveying pipeline 32, alumina powder in the powder conveying pipeline 32 is conveyed through air flow, and the other ends of the hydrogen pipeline 31 and the powder conveying pipeline 32 are connected with a control box 33; the control box 33 is provided with a power supply 331, a hydrogen switch 332 for controlling the working state of the hydrogen pipeline 31, a powder feeding switch 333 for controlling the working state of the powder feeding pipeline 32, an air flow regulating switch 334 for regulating the powder feeding amount, a current regulating switch 335, an air flow regulating meter 336, a current regulating meter 337 and an automatic spraying switch 338 for realizing automatic spraying, and through the arrangement, the controllability of the spraying process is stronger, and the practicability of the spraying process is improved. The sample 101 of the present application is a refractory material such as a quartz crucible, on the surface of which a high-temperature coating such as alumina is formed; the alumina powder is powder material with purity up to 99.99%.
Further, the transfer mechanism 20 is disposed on one side of the housing 11, and the transfer mechanism 20 includes a plurality of parallel rotating shafts (not shown) and a driving assembly (not shown) for driving the rotating shafts to rotate, and the samples 101 can be transferred onto the turntable 102 in the housing 11 during rotation of the rotating shafts. Through the arrangement, the working efficiency and the practicability of spraying the coating on the surface of the sample 101 are improved.
In some embodiments, the spraying system includes a sliding platform 12 disposed on an inner wall of the case 11 and an atomization reaction chamber 13 disposed on the sliding platform 12, wherein a nozzle 131 is disposed on one side of the atomization reaction chamber 13, and the atomization reaction chamber 13 is connected with a driving mechanism 14, so that the atomization reaction chamber 13 slides along the sliding platform 12 by using a driving action of the driving mechanism 14. Specifically, the sliding platform 12 is in a C shape, two first guide rails 111 are symmetrically arranged on the inner wall of one side, far away from the box body 11, of the sliding platform 12, a second guide rail 112 is arranged between the two first guide rails 111, the atomization reaction cavity 13 can slide along the guide rails, a driving mechanism 14 for providing power for sliding of the atomization reaction cavity 13 is arranged on the atomization reaction cavity 13, and the driving mechanism 14 is a structure capable of providing power for a motor and the like; the side of the atomization reaction cavity 13, which is close to the sliding platform 12, is provided with a groove 132 corresponding to the positions of the two first guide rails 111, and a sliding block (not shown in the figure) is arranged between the groove 132 and the first guide rails 111, so that the atomization reaction cavity 13 is driven by the driving mechanism 14 to drive the sliding block to drive the atomization reaction cavity 13 to stably move along the first guide rails 111, and the controllability of the whole spraying process is enhanced. Through the above manner, when the alumina powder is sprayed on the surface of the sample 101, the driving mechanism 14 drives the atomization reaction cavity 13 to move, so as to drive the sliding block to slide on the first guide rail 111, and finally, the atomization reaction cavity 13 is driven to slide along the sliding platform 12, so that the position of the nozzle 131 is changed, and the purpose of uniformly spraying the alumina coating on the surface of the sample 101 is realized.
In some embodiments, a bump 133 is formed between two grooves 132 on the atomization reaction chamber 13, a second track penetrates the bump 133, a second through hole (not shown) connected with the powder feeding pipe 32 and a third through hole (not shown) connected with the hydrogen pipe 31 are further formed on the chamber of the atomization reaction chamber 13, an ignition structure (not shown) for igniting hydrogen is arranged in the atomization reaction chamber 13, the powder feeding pipe 32 and the hydrogen pipe 31 can be communicated with the atomization reaction chamber 13 through the second through hole and the third through hole, and the powder feeding pipe 32 and the hydrogen pipe 31 can move along with the movement of the atomization reaction chamber 13, that is, in a non-use state, a part of the powder feeding pipe 32 and the hydrogen pipe 31 is contained in the control box 33; further, the bottom of the sliding platform 12 is sealed with the lower ends of the powder feeding pipe 32 and the hydrogen pipe 31 by a sealing material, so as to prevent the powder in the pipe from leaking and falling onto the sliding platform 12, in other embodiments, in order to make the subsequent spraying effect better, the powder feeding pipe 32 is connected with the bottom end of the atomization reaction chamber 13, and the hydrogen pipe 31 is connected with one side of the atomization reaction chamber 13 close to the sliding platform 12. Through the arrangement, a high-temperature environment can be manufactured by utilizing the combustion reaction of hydrogen in the atomization reaction cavity 13, so that the alumina powder is atomized after being conveyed into the atomization reaction cavity 13, and the atomized alumina powder is sprayed to the surface of the sample 101 through the nozzle 131, so that a coating can be formed on the surface of the sample 101. In particular, in other embodiments, for faster combustion of hydrogen, corresponding gas flow conduits may also be provided to provide air for combustion of hydrogen.
The working principle of the spraying device 100 for alumina coating proposed in the present application is further described below: taking the example of forming the alumina coating on the surface of the quartz crucible, when the spraying device 100 for alumina coating is applied to form the alumina coating on the surface of the quartz crucible, firstly, a device power supply 331 is turned on, a hydrogen switch 332 is turned on, hydrogen is conveyed into the cavity of the atomization reaction cavity 13 by utilizing a hydrogen pipeline 31, at the moment, the hydrogen reaching the cavity is ignited by an ignition structure, and the high-temperature environment is provided for the atomization reaction cavity 13 by the combustion of the hydrogen; then, a powder feeding switch 333 is turned on, alumina powder is conveyed into an atomization reaction cavity 13 by utilizing air flow, the alumina powder is atomized in a high-temperature environment, and the atomized alumina powder is sprayed to the surface of a quartz crucible through a nozzle 131; in the spraying process, the quartz crucible rotates along with the turntable 102 in the box 11 so as to spray alumina powder at different positions of the quartz crucible, meanwhile, the atomization reaction cavity 13 slides along the guide rail under the drive of the driving mechanism 14, so that the position of the nozzle 131 is changed, and under the rotation action of the quartz crucible and the sliding action of the nozzle 131, an alumina coating is uniformly sprayed on the bottom and the peripheral wall of the quartz crucible, so that the phenomena of bulging and edge collapse of the quartz crucible in the crystal pulling process are improved, and the performance of the quartz crucible is improved from the preparation process of the quartz crucible.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. The spraying device for the aluminum oxide coating is characterized by comprising a spraying box, a conveying mechanism and a conveying mechanism, wherein the conveying mechanism and the conveying mechanism are connected with the spraying box, a spraying system is arranged in the spraying box, the conveying mechanism is used for conveying a sample of the coating to be sprayed into the spraying box, and the conveying mechanism is used for conveying aluminum oxide powder which can be atomized at a high temperature into the spraying system;
the spraying system is internally provided with an atomization reaction cavity capable of sliding in the vertical direction, the atomization reaction cavity is used for atomizing the alumina powder, a turntable is arranged in the spraying box, and the sample can rotate along with the turntable.
2. The spraying device for an aluminum oxide coating according to claim 1, wherein the spraying system comprises a sliding platform arranged on the inner wall of the spraying box body and an atomization reaction cavity arranged on the sliding platform, a nozzle is arranged on one side of the atomization reaction cavity, and an ignition structure is arranged in the inner cavity of the atomization reaction cavity.
3. The spray device for aluminum oxide coating according to claim 2, wherein the sliding platform is in a shape of a "C", the atomization reaction chamber is connected to a driving mechanism for driving the atomization reaction chamber to slide on the sliding platform.
4. The spraying device for alumina coating according to claim 3, wherein two first guide rails are symmetrically arranged on the inner wall of the side, far away from the box body, of the sliding platform, and a second guide rail is arranged between the two first guide rails; grooves matched with the two first guide rails are formed in corresponding positions of the atomization reaction cavity, and a sliding block capable of sliding in the first guide rails is arranged between the grooves and the first guide rails.
5. The spraying device for alumina coating according to claim 2, wherein a lifting protective door is arranged on one side of the box body close to the conveying mechanism, and an observation window is arranged on the side surface of the box body.
6. The spray device for aluminum oxide coating according to claim 4, wherein a protrusion is formed between two grooves on the atomization reaction chamber to protrude outward, and the second guide rail penetrates the protrusion.
7. The spraying device for alumina coating according to claim 2, wherein one side of the box body is connected with the conveying mechanism, the conveying mechanism comprises a hydrogen pipeline and a powder feeding pipeline which are communicated with the atomization reaction cavity, and the other ends of the hydrogen pipeline and the powder feeding pipeline are connected with the control box.
8. The spraying device for alumina coating according to claim 7, wherein the control box is provided with a power supply, a hydrogen switch for controlling the working state of the hydrogen pipeline, a powder feeding switch for controlling the working state of the powder feeding pipeline, an air flow regulating switch for regulating the powder feeding amount, a current regulating switch, an air flow regulating meter, a current regulating meter and an automatic spraying switch for realizing automatic spraying.
9. The spraying device for alumina coating according to claim 5, wherein the conveying mechanism is disposed on the side of the box body where the lifting protective door is disposed, and comprises a plurality of parallel rotating shafts and a driving assembly for driving the rotating shafts to rotate.
10. The spraying device for alumina coating according to claim 7, wherein a fixing mechanism for fixing the sample is provided on the turntable; and the hydrogen pipeline and one side, close to the bottom end of the sliding platform, of the powder feeding pipeline are sealed with the sliding platform through a sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322314869.0U CN220678307U (en) | 2023-08-28 | 2023-08-28 | Spraying device for aluminum oxide coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322314869.0U CN220678307U (en) | 2023-08-28 | 2023-08-28 | Spraying device for aluminum oxide coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220678307U true CN220678307U (en) | 2024-03-29 |
Family
ID=90409828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322314869.0U Active CN220678307U (en) | 2023-08-28 | 2023-08-28 | Spraying device for aluminum oxide coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220678307U (en) |
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2023
- 2023-08-28 CN CN202322314869.0U patent/CN220678307U/en active Active
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| GR01 | Patent grant | ||
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Address after: No. 8, Zhenxing Road, Peibei Economic Development Zone, Yangtun Town, Pei County, Xuzhou City, Jiangsu Province, 221600 Patentee after: Jiangsu Xinyiyang High tech Materials Co.,Ltd. Country or region after: China Address before: No. 8, Zhenxing Road, Peibei Economic Development Zone, Yangtun Town, Pei County, Xuzhou City, Jiangsu Province, 221600 Patentee before: Jiangsu Xinyiyang High Tech Materials Co.,Ltd. Country or region before: China |