CN220550232U - Laser cladding nozzle with coaxial atmosphere protection - Google Patents
Laser cladding nozzle with coaxial atmosphere protection Download PDFInfo
- Publication number
- CN220550232U CN220550232U CN202322338906.1U CN202322338906U CN220550232U CN 220550232 U CN220550232 U CN 220550232U CN 202322338906 U CN202322338906 U CN 202322338906U CN 220550232 U CN220550232 U CN 220550232U
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- China
- Prior art keywords
- nozzle
- shell
- powder
- air inlet
- pipe
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- 238000004372 laser cladding Methods 0.000 title claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000001816 cooling Methods 0.000 claims description 9
- 238000005253 cladding Methods 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 15
- 230000001681 protective effect Effects 0.000 abstract description 8
- 239000011261 inert gas Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- Y02P10/25—Process efficiency
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model relates to the technical field of laser cladding nozzles, and discloses a laser cladding nozzle with coaxial atmosphere protection, which comprises a shell, wherein an upper water inlet pipe is fixedly arranged on the right side of the shell, an upper water outlet pipe is fixedly connected to one side of the shell, which is far away from the upper water inlet pipe, air inlet pipes are uniformly distributed on the outer wall of the shell, a powder inlet pipe is arranged on one side of the air inlet pipe, one end of the powder inlet pipe is fixedly connected with the outer wall of the shell, a lower water outlet pipe is fixedly arranged on the right side of the lower end of the shell, and one end of the shell, which is far away from the lower water outlet pipe, is fixedly connected with a lower water inlet pipe. According to the utility model, the nozzle of the coaxial protective gas is added on the outer side of the conventional coaxial nozzle, so that inert gas sprayed by the coaxial protective gas nozzle on the outermost side can form an inert protective atmosphere around the molten pool in the use process, and the inert protective atmosphere can effectively protect the molten pool and a melting channel formed by just cladding, thereby ensuring that the internal base material and cladding material are not oxidized.
Description
Technical Field
The utility model relates to the technical field of laser cladding nozzles, in particular to a laser cladding nozzle with coaxial atmosphere protection.
Background
The laser cladding is a novel surface modification technology for heating cladding materials and the surface of a base material by laser beams to enable required special materials to be welded on the surface of a workpiece, and has a series of outstanding characteristics compared with common surfacing and plasma spray welding (coating) technologies and the like: the cladding layer has fine and compact structure, higher hardness, and better corrosion resistance and wear resistance; the cladding is metallurgically bonded with the substrate; the dilution rate of the cladding layer is low (only 5% -8%), and the required performance requirement can be realized by using a thinner cladding layer; the laser beam has high power density and high heating temperature, and the selection range of cladding materials is wider; the heat affected zone is small, and the deformation of the workpiece is small; the coating quality is stable, and the automatic production is easy to realize, and in this case, a nozzle is used for spraying the cladding material.
However, when the application of the easily oxidized materials such as titanium alloy and aluminum alloy is met during laser cladding, the conventional nozzle cannot prevent the formation of oxidation products, so that the laser cladding application of the easily oxidized materials cannot be effectively realized, and the conventional solution is to put cladding equipment into a large inert space for operation so as to ensure that the materials are not oxidized, but the equipment has high manufacturing cost, consumes a large amount of inert gas during the use, and has considerable use cost.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a laser cladding nozzle with coaxial atmosphere protection, which has the advantages of effectively protecting a molten pool and a cladding channel formed by just cladding, ensuring that internal base materials and cladding materials are not oxidized, realizing the purposes of reducing cost and enhancing efficiency, and solving the problems in the prior art.
The utility model provides the following technical scheme: the utility model provides a take coaxial atmosphere protection's laser cladding nozzle, includes the shell, the right side fixed mounting of shell has the inlet tube, one side fixedly connected with that the inlet tube was gone up to the shell is kept away from to the shell goes up the outlet pipe, the outer wall evenly distributed of shell has the intake pipe, the powder inlet tube is installed to one side of intake pipe, and the one end and the outer wall fixed connection of shell of powder inlet tube, the right side fixed mounting of shell lower extreme has the outlet pipe down, the one end fixedly connected with down the outlet pipe is kept away from to the shell.
Preferably, the inner wall of the outer shell is fixedly sleeved with the inner shell, the lower end of the inner shell is fixedly provided with the nozzle, the outer wall of the inner shell is provided with the powder inlet positioned above the nozzle, the outer wall of the inner shell is provided with the air inlet positioned on one side of the powder inlet, and the outer wall of the inner shell is provided with the circulating groove positioned above the air inlet.
Preferably, the number of the air inlet pipes and the powder inlet pipes is three, and the air inlet pipes and the powder inlet pipes are distributed on the outer wall of the shell in a staggered mode.
Preferably, the number of the powder inlet and the air inlet is three, the powder inlet and the air inlet are distributed on the inner shell in a staggered manner, the powder inlet is fixedly connected with the powder inlet pipe, and the air inlet is fixedly connected with the air inlet pipe.
Preferably, the inside of the nozzle is provided with a nozzle water cooling cavity, the inside of the nozzle is provided with a protection air cavity positioned at the inner side of the nozzle water cooling cavity, the upper end surface of the nozzle is provided with a powder inlet cavity, and the upper end surface of the nozzle is provided with a nozzle positioned at the outer side of the powder inlet cavity.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the nozzle of the coaxial protective gas is added on the outer side of the conventional coaxial nozzle, and inert gas sprayed by the coaxial protective gas nozzle on the outermost side can form an inert protective atmosphere around the molten pool in the use process, and the inert protective atmosphere can effectively protect the molten pool and a melting channel formed by just cladding, so that the internal base material and cladding material are prevented from being oxidized.
2. According to the utility model, through adjusting the structure of the nozzle, the investment for manufacturing a large inert atmosphere is avoided, the equipment cost is obviously reduced, and the inert gas used in the production process is less, so that the aims of reducing the cost and enhancing the efficiency are effectively fulfilled.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of the inner shell of the present utility model;
FIG. 3 is a side view of the powder inlet of the present utility model;
FIG. 4 is a cross-sectional view of a nozzle of the present utility model;
FIG. 5 is a top view of the nozzle of the present utility model;
FIG. 6 is a cross-sectional view of the powder inlet chamber of the present utility model.
In the figure: 1. a housing; 2. an upper water inlet pipe; 3. an upper water outlet pipe; 4. an air inlet pipe; 5. a powder inlet pipe; 6. a lower water outlet pipe; 7. a lower inlet pipe; 8. a nozzle water cooling cavity; 9. protecting the air cavity; 10. a powder inlet cavity; 11. a nozzle; 12. an inner case; 13. a powder inlet; 14. an air inlet; 15. a circulation tank.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 3, a laser cladding nozzle with coaxial atmosphere protection includes a housing 1, the installation of the housing 1 provides support and a platform for the installation of an upper water inlet pipe 2 and an upper water outlet pipe 3, the right side of the housing 1 is fixedly provided with the upper water inlet pipe 2, the arrangement of the upper water inlet pipe 2 is a cooling water inlet pipe into the internal providing channel of the housing 1, one side of the housing 1 far away from the upper water inlet pipe 2 is fixedly connected with the upper water outlet pipe 3, the arrangement of the upper water outlet pipe 3 is a cooling water outlet providing channel of the housing 1, the flow of cooling water circulation in the housing 1 is sequentially realized, the outer wall of the housing 1 is uniformly distributed with an air inlet pipe 4, the arrangement of the air inlet pipe 4 serves as an inlet providing channel for air, one side of the air inlet pipe 4 is provided with a powder inlet pipe 5, one end of the powder inlet pipe 5 is fixedly connected with the outer wall of the housing 1, the right side of the lower water outlet pipe 6 is fixedly arranged at the lower end of the housing 1, the arrangement of the lower water outlet pipe 6 is a lower cooling water outlet providing channel of the lower water outlet pipe from the inside of the housing 1, one end of the housing 1 far away from the lower water outlet pipe 6 is fixedly connected with a lower water inlet pipe 7, and the arrangement of the lower water inlet pipe 7 is arranged below the cooling water inlet channel of the housing 1.
The inner wall of the outer shell 1 is fixedly sleeved with the inner shell 12, the lower end of the inner shell 12 is fixedly provided with the nozzle 11, the nozzle 11 is installed to provide a channel for the ejection of materials, the outer wall of the inner shell 12 is provided with the powder inlet 13 positioned above the nozzle 11, the outer wall of the inner shell 12 is provided with the air inlet 14 positioned at one side of the powder inlet 13, the outer wall of the inner shell 12 is provided with the circulating groove 15 positioned above the air inlet 14, and the circulating groove 15 is provided with a connection between the upper water inlet pipe 2 and the upper water outlet pipe 3.
Referring to fig. 2 and 4, the number of the air inlet pipe 4 and the powder inlet pipe 5 is three, the air inlet pipe 4 and the powder inlet pipe 5 are distributed on the outer wall of the casing 1 in a staggered manner, and the powder inlet pipe 4 is used for providing metal powder required by laser cladding for the inside of the nozzle.
The number of the powder inlet 13 and the air inlet 14 is three, the powder inlet 13 and the air inlet 14 are distributed on the inner shell 12 in a staggered way, the powder inlet 13 is fixedly connected with the powder inlet pipe 5, the air inlet 14 is fixedly connected with the air inlet pipe 4, and the air inlet 14 is provided with inert gas required for providing atmosphere protection for the cladding nozzle.
Referring to fig. 5 and 6, a nozzle water cooling cavity 8 is formed in the nozzle 11, a water cooling circulation for providing cooling water for the nozzle structure is formed in the nozzle water cooling cavity 8, a protection air cavity 9 located at the inner side of the nozzle water cooling cavity 8 is formed in the nozzle 11, a powder inlet cavity 10 is formed in the upper end face of the nozzle 11, a nozzle 11 located at the outer side of the powder inlet cavity 10 is formed in the upper end face of the nozzle 11, and the structure of the nozzle is adjusted, so that investment for manufacturing a large inert atmosphere is avoided, the equipment cost is remarkably reduced, and inert gas used in the production process is less, so that the purposes of reducing cost and enhancing efficiency are effectively achieved.
Working principle: when the novel spray nozzle is used, firstly, the upper cold water circulation structure consists of the upper water inlet pipe 2, the outer shell 1 and the circulation groove 15, cold water enters the circulation groove 15 from the upper water inlet pipe 2, and because the circulation groove 15 is formed in the outer wall of the inner shell 12, cold water flows out of the upper water outlet pipe 3 to the outer shell 1 through the circulation groove 15 to cool the whole spray nozzle structure, at the moment, the inner shell 12 is cooled by water, then, the air inlet pipe 4 and the powder inlet pipe 5 are uniformly distributed on the outer shell 1 for a time, wherein the powder inlet pipe 5 is used for providing metal powder required by laser cladding in the spray nozzle, the air inlet pipe 4 is inert gas required by providing atmosphere protection for the cladding spray nozzle, and finally, the lower water inlet pipe 7 and the lower water outlet pipe 6 are matched to provide the cooled water circulation structure for providing the atmosphere protection spray nozzle structure.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the present utility model, the filling pattern is only for distinguishing the layers, and is not limited in any way.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a take coaxial atmosphere protection's laser cladding nozzle, includes shell (1), its characterized in that: the utility model discloses a powder inlet pipe, including shell (1), inlet tube (5) are installed to the right side fixed mounting of shell (1), one side fixedly connected with upper outlet pipe (3) of upper inlet tube (2) are kept away from to shell (1), the outer wall evenly distributed of shell (1) has intake pipe (4), one side of intake pipe (4) is installed into powder pipe (5), and the one end of advancing powder pipe (5) and the outer wall fixed connection of shell (1), the right side fixed mounting of shell (1) lower extreme has outlet pipe (6), one end fixedly connected with down inlet tube (7) of outlet pipe (6) are kept away from to shell (1).
2. The laser cladding nozzle with coaxial atmosphere protection according to claim 1, wherein: the inner wall of the outer shell (1) is fixedly sleeved with the inner shell (12), the lower end of the inner shell (12) is fixedly provided with the nozzle (11), the outer wall of the inner shell (12) is provided with the powder inlet (13) positioned above the nozzle (11), the outer wall of the inner shell (12) is provided with the air inlet (14) positioned at one side of the powder inlet (13), and the outer wall of the inner shell (12) is provided with the circulating groove (15) positioned above the air inlet (14).
3. The laser cladding nozzle with coaxial atmosphere protection according to claim 1, wherein: the number of the air inlet pipes (4) and the powder inlet pipes (5) is three, and the air inlet pipes (4) and the powder inlet pipes (5) are distributed on the outer wall of the shell (1) in a staggered mode.
4. The laser cladding nozzle with coaxial atmosphere protection according to claim 2, wherein: the powder inlet (13) and the air inlet (14) are arranged in three, the powder inlet (13) and the air inlet (14) are distributed on the inner shell (12) in a staggered mode, the powder inlet (13) is fixedly connected with the powder inlet pipe (5), and the air inlet (14) is fixedly connected with the air inlet pipe (4).
5. The laser cladding nozzle with coaxial atmosphere protection according to claim 2, wherein: the novel powder feeding device is characterized in that a nozzle water cooling cavity (8) is formed in the nozzle (11), a protection air cavity (9) located at the inner side of the nozzle water cooling cavity (8) is formed in the nozzle (11), a powder feeding cavity (10) is formed in the upper end face of the nozzle (11), and a nozzle (11) located at the outer side of the powder feeding cavity (10) is formed in the upper end face of the nozzle (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322338906.1U CN220550232U (en) | 2023-08-29 | 2023-08-29 | Laser cladding nozzle with coaxial atmosphere protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322338906.1U CN220550232U (en) | 2023-08-29 | 2023-08-29 | Laser cladding nozzle with coaxial atmosphere protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220550232U true CN220550232U (en) | 2024-03-01 |
Family
ID=90009076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322338906.1U Active CN220550232U (en) | 2023-08-29 | 2023-08-29 | Laser cladding nozzle with coaxial atmosphere protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220550232U (en) |
-
2023
- 2023-08-29 CN CN202322338906.1U patent/CN220550232U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |