CN203886770U - Laser-assisted cold spraying nozzle device - Google Patents
Laser-assisted cold spraying nozzle device Download PDFInfo
- Publication number
- CN203886770U CN203886770U CN201420124969.5U CN201420124969U CN203886770U CN 203886770 U CN203886770 U CN 203886770U CN 201420124969 U CN201420124969 U CN 201420124969U CN 203886770 U CN203886770 U CN 203886770U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- speculum
- laser
- reflecting mirror
- cold spraying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010288 cold spraying Methods 0.000 title claims abstract description 28
- 230000008602 contraction Effects 0.000 claims abstract description 20
- 239000007921 spray Substances 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000000843 powder Substances 0.000 abstract description 40
- 239000011159 matrix material Substances 0.000 description 31
- 239000007789 gas Substances 0.000 description 27
- 239000002245 particle Substances 0.000 description 19
- 238000000576 coating method Methods 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 238000005507 spraying Methods 0.000 description 8
- 238000000151 deposition Methods 0.000 description 7
- 239000003570 air Substances 0.000 description 6
- 230000008021 deposition Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012159 carrier gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000004877 mucosa Anatomy 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002103 nanocoating Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Nozzles (AREA)
Abstract
The utility model discloses a laser-assisted cold spraying nozzle device. One side of a throat part of a nozzle is a nozzle contraction section; the other side of the throat part of the nozzle is a nozzle expansion section; a high-pressure gas inlet and a light transmitting window through which a laser beam enters are formed in one side of the nozzle contraction section of the nozzle; the light transmitting window is formed in a manner of deviating from an axial line of the nozzle; a reflecting mirror A is arranged on the nozzle contraction section of the nozzle; a powder inlet, a reflecting mirror B, a reflecting mirror C and a reflecting mirror D are arranged on one side of the nozzle expansion section of the nozzle; the laser beam which enters from the light transmitting window is sequentially reflected by the reflecting mirror A, the reflecting mirror D, the reflecting mirror B and the reflecting mirror C in the nozzle and then is emitted out from the nozzle expansion section; the powder inlet is positioned between the reflecting mirror D and the reflecting mirror B. According to the technical scheme, the laser is emitted to each reflecting mirror in the nozzle in a manner of forming a certain angle with the axial line of the nozzle, so that the laser beam is reflected multiple times by the reflecting mirrors on the inner wall of the nozzle and finally is irradiated on a base body. Thus, gas, powder and the base body in the nozzle are evenly preheated.
Description
Technical field
The utility model relates to a kind of laser assisted cold spraying spray nozzle device, particularly a kind of supersonic nozzle device for laser cold spraying.
Background technology
Cold spraying is also called cold-air dynamic spraying (Cold Gas Dynamic Spray, CGDS), in the middle and later periods eighties 20th century, proposed by the scientist of the former Soviet Union, it is a spraying technology based on aerodynamic principle, its principle is to utilize gases at high pressure (nitrogen, helium, air, or mist etc.) carry powder particle and enter high velocity air, produce supersonic gas fixed double phase flow by shaped telescopic tube (Laval pipe), powder particle through supersonic nozzle accelerate after under solid-state state with high speed bumped substrate, be deposited on matrix surface formation coating by producing strong plastic deformation.Depend on heat energy from thermal spraying or chemical energy is different, the cold spraying kinetic energy that depends on particle more.Therefore this technology has advantages of as follows: 1) spraying-and-heating temperature is far below its fusing point, and particle there is no the phenomenons such as oxidation, scaling loss and grain growth.Be applicable to nanocrystalline, amorphous etc. to temperature-sensitive material, Cu, Ti etc. are to oxidation-sensitive materials, the spraying to phase transformation sensitive material such as carbide composite material.2) coating is little to the heat affecting of matrix, and the thermal stress between coating and matrix is reduced.Residual stress between coating is little and be mainly compression, is conducive to obtain the coating of thicker densification.3) spray efficiency is high, and the porosity is low.4) dusty spray can recycling, economic environmental protection.Cold spray technique is extremely important for expansion field of thermal spray, for new approach has been opened up in the application of surface engineering technology.The fields such as the reparation that has been widely used in preparing various functional coats, nano coating, auto manufacturing, machine components is manufactured again, Aero-Space.
To late 1990s, scientific research person has started to carry out the research of laser assisted cold spray technique.Laser assisted cold spraying is a kind of novel spraying and re-manufacturing technology, its principle as shown in Figure 1, high pressurized gas 101, powder feeder 102, Lava nozzle 103, experimental box 104, laser instrument 105, pyrometer 106, matrix 107, coating 108, powder recovering device 109.It has been bound up on supersonic speed powder beam with the LASER HEATING of deposition region together with.Laser assisted cold spraying has retained the advantage of cold spraying: solid deposited, the high rate of manufacturing again and can on a series of base material, deposit, and have more and have wide practical use than cold spraying.Ear Mucosa Treated by He Ne Laser Irradiation, on matrix, makes matrix softening, therefore can realize the preparation of difficult deposition materials coating, has expanded the scope of application of material and matrix; The introducing of laser can be removed use gas preheating unit from, has reduced the consumption of Compressed Gas, can replace nitrogen or argon gas with cheap compressed air again, has reduced the production cost of technique; Softening particle or the matrix processed of laser; moment regulates and has changed the mechanical property of material, and its Plastic Flow is increased, and has improved particle Collision deposition state; the thickness, deposition, compactness and the bond strength that have improved powder coating, prepared coating is better than cold spraying coating.
In European patent GB2439934A, proposed a kind of laser assisted cold spraying nozzle simple in structure, in this nozzle, laser optical path is coaxial with nozzle, and laser facula is slightly less than the diameter of nozzle throat.When work, laser see through the window made of special material irradiate in nozzle and final irradiation on matrix, nozzle a-road-through enters gases at high pressure, a-road-through enters powder to be sprayed, both reach supersonic speed in Laval nozzle, impinge upon and on matrix, form coating with solid-state form.In whole process, laser had both heated gas, powder particle, had also heated matrix, made powder and matrix simultaneously softening, had therefore greatly improved deposition and bond strength.But in this nozzle, powder enters throat from contraction section, throat diameter only has several millimeters conventionally, under the irradiation of laser, be easily bonded in nozzle throat for low melting point and softer metal powder material, after working long hours, easily cause spray nozzle clogging, and to spot diameter require highly, must be less than nozzle throat diameter.
US Patent No. 20110300306A1 has also proposed a kind of laser assisted cold spraying spray nozzle device, employing be also the laser optical path method coaxial with nozzle.In this patent, powder particle is sent into by nozzle expansion segment, has therefore avoided powder to be bonded in the phenomenon of throat because of thermoplastic.But the common shortcoming of the coaxial laser assisted cold spraying nozzle of laser and powder is that laser is hotter inhomogeneous to carrier gas in particle and nozzle, the few phenomenon of heat many both sides heat in the middle of existing, after deposition, coating thick middle both sides are thin, and powder using efficiency is lower.
What laser assisted cold spray technique mainly used at present is the method that laser side direction is irradiated, and nozzle is pure cold spraying nozzle used.In Chinese invention patent CN101153393A, disclose a kind of cold air power spraying and coating method that contains Ear Mucosa Treated by He Ne Laser Irradiation, in spraying, irradiated and have elliptical shaped laser spot in the dead ahead of circle spraying spot.The method can significantly reduce the critical speed of particle in cold spray process, improves bonding efficiency.But side direction is irradiated when laser facula, a preheating matrix, in nozzle, still need the shortcomings such as preheating carrier gas just can make the final depositing base of powder, and gas consumption is large still unresolved to some hard particles.
Summary of the invention
In order to solve above-mentioned technical problem, the purpose of this utility model is to provide a kind of laser assisted cold spraying spray nozzle device, laser and nozzle-axis are injected on the speculum in nozzle at an angle, and light beam, by the speculum multiple reflections in nozzle inner walls, is finally radiated on matrix.This device can be to the even preheating of the gas of nozzle interior, powder and matrix, and can cancel carrier gas preheating device.
To achieve the above object, the utility model has adopted following technical scheme:
A kind of laser assisted cold spraying spray nozzle device, comprise nozzle, one side of nozzle throat is nozzle contraction section, the opposite side of nozzle throat is nozzle expansion segment, the optical transmission window that nozzle is provided with pressurized gas inlet and enters for laser beam in nozzle contraction section one side, optical transmission window offset nozzle axis arranges, nozzle is provided with speculum A on nozzle contraction section, nozzle is provided with powdering inlet in nozzle expansion segment one side, speculum B, speculum C and speculum D, the laser beam entering from optical transmission window passes through speculum A successively in nozzle interior, speculum D, after speculum B and speculum C reflection, penetrate from nozzle expansion segment, powdering inlet is between speculum D and speculum B.
As preferably, described pressurized gas inlet is vertical with nozzle-axis, and powdering inlet is vertical with nozzle-axis.
As preferably, described speculum A is fixedly connected with nozzle one with speculum D, and speculum B and speculum C are arranged on nozzle with removably.
As preferably, described speculum A, speculum D, speculum B and speculum C are level crossing or concave mirror.
The incident angle of above-mentioned laser beam should be at 0 ° between nozzle convergency half, the installation site of optical transmission window and speculum A, B, C, D is determined through beam reflection angular dependence, speculum A must be arranged on contraction section, after speculum B is arranged on throat and before powder feeding entrance, and speculum B, C are arranged on after powder feeding entrance.As preferably, the incident angle (angle of incoming laser beam and nozzle-axis) of described laser beam is 1 °～10 °, the contraction angle (two angles that shrink between inwall that are oppositely arranged centered by nozzle-axis) of nozzle contraction section is 30 °～45 °, and the expansion angle (angles between the two expansion inwalls that are oppositely arranged centered by nozzle-axis) of nozzle expansion segment is 10 °～12 °.
The utility model is owing to having adopted above technical scheme, when work, laser instrument sends the laser beam that is special angle with nozzle-axis, light beam sees through window, entering nozzle is radiated on speculum A, light beam is through speculum D, the reflection of B and C is finally radiated on matrix, meanwhile gases at high pressure enter nozzle interior by gas access and reach supersonic speed and carry and enter the powder stream nozzle expansion segment from powdering inlet after Laval nozzle accelerates, laser beam has heated on a large scale the gas in nozzle in the process that arrives matrix, powder particle and matrix, make powder and matrix softening, being conducive to powder particle is deposited on and on matrix, forms high performance coating.This laser assisted cold spraying nozzle can be to gas in nozzle and powder particle and substrate preheating, and preheating is even, can remove gas-heating apparatus from, and light spot shape diameter is unrestricted can flexible modulation.Powder injects from expansion segment, has avoided the appearance of nozzle throat clogging.
Brief description of the drawings
Fig. 1 is the structural representation of prior art laser cold spraying system.
Fig. 2 is structural representation of the present utility model;
1-laser instrument, 2-laser beam, 3-optical transmission window, 4-nozzle, 5-speculum A, 6-powdering inlet, 7-speculum B, 8-powder, 9-coating, 10-matrix, 11-speculum C, 12-nozzle expansion segment, 13-speculum D, 14-nozzle throat, 15-nozzle contraction section, 16-pressurized gas inlet, 17-nozzle-axis.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is made a detailed explanation.
Embodiment 1:
A kind of laser assisted cold spraying spray nozzle device as shown in Figure 2, comprise nozzle 4, one side of nozzle throat 14 is nozzle contraction section 15, the opposite side of nozzle 4 throats 14 is nozzle expansion segment 12, the optical transmission window 3 that nozzle 4 is provided with pressurized gas inlet 16 and enters for laser beam 2 in nozzle contraction section 15 1 sides, optical transmission window 3 offset nozzle axis 17 arrange, nozzle 4 is provided with speculum A5 on nozzle contraction section 15, nozzle 4 is provided with powdering inlet 6 in nozzle expansion segment 12 1 sides, speculum B7, speculum C11 and speculum D13, the laser beam 2 entering from optical transmission window 3 passes through speculum A5 successively in nozzle 4 inside, speculum D13,
After speculum B7 and speculum C11 reflection, penetrate from nozzle expansion segment 12, powdering inlet 6 is between speculum D13 and speculum B7.Described pressurized gas inlet 16 is vertical with nozzle-axis 17, and powdering inlet 6 is vertical with nozzle-axis 17.Described speculum A5 is fixedly connected with nozzle 4 one with speculum D13, and speculum B7 and speculum C11 are arranged on nozzle 4 with removably.Described speculum A5, speculum D13, speculum B7 and speculum C11 are level crossing or concave mirror.
A kind of laser assisted cold spray-coating method, comprise a kind of laser assisted cold spraying spray nozzle device as above, gases at high pressure enter nozzle 4 inside from pressurized gas inlet 16, are injected into matrix 10 successively after nozzle contraction section 15, nozzle throat 14 and nozzle expansion segment 12; Powder particle is injected into matrix 10 by the carry-shaped powdered stream 8 of gases at high pressure from powdering inlet 6 enters nozzle expansion segment 12; The laser beam 2 that laser instrument 1 produces, enter nozzle 4 inside from optical transmission window 3, after speculum A5, speculum D13, speculum B7 and speculum C11 reflection, be radiated on matrix 10 successively, laser beam 2 carries out preheating through powder stream 8 to powder particle in reflection process, and laser beam 2 is superimposed at the jeting area on matrix 10 surfaces at irradiation area and the powder stream 8 on matrix 10 surfaces.
In the present embodiment, the incident angle of described laser beam 2 is 1 °～10 °, and the contraction angle of nozzle contraction section 15 is 30 °～45 °, and the expansion angle of nozzle expansion segment 12 is 10 °～12 °.Speculum 5 and 13 is directly embedded in superonic flow nozzzle 4 and is integrated with nozzle, and speculum 7 and 11 is detachable, is fixed by screws on nozzle 4.
Laser instrument 1 sends the laser beam 2 that is special angle with X-axis (nozzle-axis 17), light beam sees through window 3, entering nozzle is radiated on speculum 5, light beam is through speculum 13, 7 and 11 reflection is finally radiated on matrix, meanwhile gases at high pressure enter nozzle interior by gas access 16 and reach supersonic speed and carry from powdering inlet 6 and enter the powder stream 8 nozzle expansion segment 12 after Laval nozzle accelerates, laser beam has heated on a large scale the gas in nozzle in the process that arrives matrix, powder particle and matrix, make powder and matrix softening, being conducive to powder particle is deposited on and on matrix 10, forms high performance coating 9.This laser assisted cold spraying nozzle can be to gas in nozzle and powder particle and substrate preheating, and preheating is even, can remove gas-heating apparatus from, and light spot shape diameter is unrestricted can flexible modulation.This device powder is sent into from the expansion segment of superonic flow nozzzle later, greatly reduces powder feeding air pressure, cost-saving, and can avoid the nozzle throat even clogging that bonds.The speculum 7 and 11 being fixed by screws on nozzle is dismountable, after laser cold spraying a period of time, speculum 7 and 11 can be taken off, and adopts special lens wiping paper to carry out wiping.
It is emphasized that: be only preferred embodiment of the present utility model above, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. a laser assisted cold spraying spray nozzle device, it is characterized in that, comprise nozzle (4), one side of nozzle (4) throat (14) is nozzle contraction section (15), the opposite side of nozzle (4) throat (14) is nozzle expansion segment (12), the optical transmission window (3) that nozzle (4) is provided with pressurized gas inlet (16) and enters for laser beam (2) in nozzle contraction section (15) one sides, optical transmission window (3) offset nozzle axis (17) arranges, nozzle (4) is provided with speculum A(5 on nozzle contraction section (15)), nozzle (4) is provided with powdering inlet (6) in nozzle expansion segment (12) one sides, speculum B(7), speculum C(11) and speculum D(13), the laser beam (2) entering from optical transmission window (3) passes through speculum A(5 successively in nozzle (4) inside), speculum D(13), speculum B(7) and speculum C(11) reflection after penetrate from nozzle expansion segment (12), powdering inlet (6) is positioned at speculum D(13) and speculum B(7) between.
2. a kind of laser assisted cold spraying spray nozzle device according to claim 1, is characterized in that, described pressurized gas inlet (16) is vertical with nozzle-axis (17), and powdering inlet (6) is vertical with nozzle-axis (17).
3. a kind of laser assisted cold spraying spray nozzle device according to claim 1, it is characterized in that, described speculum A(5) with speculum D(13) be fixedly connected with speculum B(7 with nozzle (4) one) and speculum C(11) be arranged on nozzle (4) with removably.
4. a kind of laser assisted cold spraying spray nozzle device according to claim 1, is characterized in that described speculum A(5), speculum D(13), speculum B(7) and speculum C(11) be level crossing or concave mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420124969.5U CN203886770U (en) | 2014-03-19 | 2014-03-19 | Laser-assisted cold spraying nozzle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420124969.5U CN203886770U (en) | 2014-03-19 | 2014-03-19 | Laser-assisted cold spraying nozzle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203886770U true CN203886770U (en) | 2014-10-22 |
Family
ID=51713218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420124969.5U Expired - Lifetime CN203886770U (en) | 2014-03-19 | 2014-03-19 | Laser-assisted cold spraying nozzle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203886770U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920626A (en) * | 2014-03-19 | 2014-07-16 | 浙江工业大学 | Laser-assisted cold spray coating method and nozzle apparatus |
| CN110508809A (en) * | 2019-08-29 | 2019-11-29 | 华中科技大学 | A kind of increasing material manufacturing and surface coat combined shaping system and method |
| CN115233207A (en) * | 2022-06-24 | 2022-10-25 | 广东省科学院新材料研究所 | Laser preheating ultrasonic rapid cold spraying nozzle device and deposition method |
-
2014
- 2014-03-19 CN CN201420124969.5U patent/CN203886770U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920626A (en) * | 2014-03-19 | 2014-07-16 | 浙江工业大学 | Laser-assisted cold spray coating method and nozzle apparatus |
| CN103920626B (en) * | 2014-03-19 | 2016-08-24 | 浙江工业大学 | A kind of laser assisted cold spray-coating method and spray nozzle device |
| CN110508809A (en) * | 2019-08-29 | 2019-11-29 | 华中科技大学 | A kind of increasing material manufacturing and surface coat combined shaping system and method |
| CN115233207A (en) * | 2022-06-24 | 2022-10-25 | 广东省科学院新材料研究所 | Laser preheating ultrasonic rapid cold spraying nozzle device and deposition method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103920626A (en) | Laser-assisted cold spray coating method and nozzle apparatus | |
| CN108950533B (en) | Laser-cold spraying coaxial composite deposition device and method | |
| CN105862034B (en) | A kind of supersonic speed laser deposition coaxial powder feeding apparatus | |
| CN102212818B (en) | Method and device for inducing nanocrystallization of metal surface through shock wave-accelerated nano particles | |
| CN203886770U (en) | Laser-assisted cold spraying nozzle device | |
| US6623796B1 (en) | Method of producing a coating using a kinetic spray process with large particles and nozzles for the same | |
| CN102527544B (en) | Cold spray device and method for preparing metal composite gradient quasicrystal coating | |
| US6743468B2 (en) | Method of coating with combined kinetic spray and thermal spray | |
| CN109837497A (en) | A kind of central coaxial powder feeding formula supersonic speed laser spraying method | |
| WO2021128841A1 (en) | Laser composite cold spraying in-situ nitriding strengthening method and cold spraying device | |
| CN104086184A (en) | Method for ultrasonic-assisted laser engineered net shaping of ceramic piece | |
| CN102747363A (en) | Nano metal particle cold spraying technique | |
| CN206584125U (en) | Laser wide-band cladding device | |
| CN101759372A (en) | Integrative ultrasonic spray pyrolysis large-area wide-temperature zone coating device | |
| CN105081337A (en) | Method and device for preparing fine spherical metal powder through high-frequency supersonic plasma gas | |
| CN103628018A (en) | High speed oxygen fuel spraying system and metal ceramic coating prepared by the same | |
| CN108907196A (en) | Laser increases and decreases material composite manufacturing device and method | |
| CN105555038A (en) | Method for forming circuit on nonmetallic substrate | |
| CN104087891B (en) | A kind of injection and spraying process prepare method and the device of composite material | |
| CN111719146B (en) | Double-laser head double-powder-feeding-port supersonic laser deposition nozzle device and deposition method | |
| CN107794526B (en) | A kind of laser melting coating compound metal parts manufacturing process synchronous with cold spray | |
| CN211645387U (en) | Cold spraying device for laser composite cold spraying in-situ nitridation | |
| CN211620614U (en) | Cold spraying equipment for high-speed deposition of laser composite cold spraying | |
| CN201969665U (en) | Integrated ultrasonic atomizing pyrolytic large-area coating device with broad temperature zone | |
| CN101417274A (en) | Kinetic spray-painting gun using powder preparation coatings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20160824 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |