[go: up one dir, main page]

CN113308691B - Laser cladding head for plane remanufacturing and manufacturing method thereof - Google Patents

Laser cladding head for plane remanufacturing and manufacturing method thereof Download PDF

Info

Publication number
CN113308691B
CN113308691B CN202110567762.XA CN202110567762A CN113308691B CN 113308691 B CN113308691 B CN 113308691B CN 202110567762 A CN202110567762 A CN 202110567762A CN 113308691 B CN113308691 B CN 113308691B
Authority
CN
China
Prior art keywords
hole
laser
planar
remanufacturing
shower nozzle
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.)
Active
Application number
CN202110567762.XA
Other languages
Chinese (zh)
Other versions
CN113308691A (en
Inventor
黄勇
张帅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Huaihai Aoke Equipment Remanufacture Co ltd
Original Assignee
Anhui Huaihai Aoke Equipment Remanufacture Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Huaihai Aoke Equipment Remanufacture Co ltd filed Critical Anhui Huaihai Aoke Equipment Remanufacture Co ltd
Priority to CN202110567762.XA priority Critical patent/CN113308691B/en
Publication of CN113308691A publication Critical patent/CN113308691A/en
Application granted granted Critical
Publication of CN113308691B publication Critical patent/CN113308691B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00Coating starting from inorganic powder
    • C23C24/08Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/22Moulds for peculiarly-shaped castings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20Direct sintering or melting
    • B22F10/28Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F12/00Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
    • B22F12/50Means for feeding of material, e.g. heads
    • B22F12/53Nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B33ADDITIVE MANUFACTURING TECHNOLOGY
    • B33YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00Apparatus for additive manufacturing; Details thereof or accessories therefor
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)

Abstract

The invention relates to a laser cladding head for plane remanufacturing and a manufacturing method thereof, belonging to the field of machining. The utility model provides a can realize carrying out multilayer laser vibration material disk and melt shower nozzle structure of cladding in step, including shower nozzle assembly, passage, screw hole, spacing ring, dressing pipe mounting hole, middle part baffle, laser hole, fastening pin, leading-in mouth, stock guide, flange board, blanking hole, can carry out multilayer vibration material disk in step and melt, set up and apply the material after the material of material pipe to cladding and cover the protection, avoid oxidation.

Description

Laser cladding head for plane remanufacturing and manufacturing method thereof
Technical Field
The invention relates to a laser cladding head for plane remanufacturing and a manufacturing method thereof, belonging to the field of machining.
Background
At present, when remanufacturing is carried out to a coal mine hydraulic support structure, through dismantling the hydraulic structure, cleaning, then the surface is through laser cladding material adding, finally process to design size through processing equipment, reach and remanufacturing the pneumatic cylinder, at present, carry out laser cladding to the terminal surface, because the cladding of terminal surface needs the track of adjusting the shower nozzle, the whole inefficiency has increased holistic processing beat, can not be fit for the restoration in batches, consequently do not handle or restore current terminal surface, influence subsequent remanufacturing and use, the planar structure like above is by a lot, do not handle in detail, also only single point or edge material adding, carry out laser cladding mainly to key position, correspond the thicker position of material adding, need carry out repeated operation many times.
Publication number CN110923704A discloses a copper laser cladding is with high-speed laser cladding head, including laser cladding head body, first cover body and second cover body are fixed mounting respectively in the lower extreme of laser cladding head body, and the second cover body is located the inside of first cover body, and the clearance between first cover body and the second cover body forms the powder chamber, laser cladding head body base one side fixed welding has L shape spliced pole, the fixed bolster has fixed welding of one end of L shape spliced pole, install the filter module that is used for to powder filtration on the fixed bolster, the upper end fixed mounting of laser cladding head body has lifting unit, the upper end fixed mounting of lifting unit has the fixed subassembly that is used for installing laser cladding head body in the laser cladding machine, and above-mentioned structure still is single shower nozzle, can not form synchronous orderly operation to carrying out laser cladding to the plane.
Disclosure of Invention
The invention aims to overcome the technical defects and provide a spray head structure capable of synchronously carrying out multilayer laser additive cladding.
The invention relates to a laser cladding head for plane remanufacturing, which is realized in such a way that the laser cladding head for plane remanufacturing comprises a nozzle assembly, a material guide pipe, a threaded hole, a limiting ring, a material coating pipe mounting hole, a middle partition plate, a laser hole, a fastening pin, a guide nozzle, a material guide plate, a flange plate and a blanking hole, wherein the middle part of the nozzle assembly is provided with a through hole, the outer ring of the nozzle assembly is provided with three groups of laser holes, the laser holes are obliquely arranged, the axes of the laser holes are respectively intersected with the axis of the through hole, the material coating pipe is arranged on the nozzle assembly and is communicated with the middle through hole,
the spray head assembly is formed by combining three petal-shaped structures, wherein the three petal-shaped structures are combined into a circular ring, the petal-shaped structures are staggered at equal intervals along the axial direction, and the rotation surface of the petal-shaped structures is trapezoidal;
the device comprises a petal-shaped structure, a dressing tube, a guide nozzle and a laser hole, wherein the petal-shaped structure is correspondingly provided with the laser hole, the dressing tube is correspondingly arranged in the dressing mounting hole, and the guide nozzle is arranged in the dressing mounting hole and extends into the laser hole;
a middle partition board is arranged in the middle through hole of the spray head assembly, three partition boards are arranged and extend along the axial direction of the spray head assembly, a stand column is arranged in the middle of the middle partition board,
the flange plates are correspondingly arranged on the petal-shaped structures and are fixed through fastening pins;
a material guide plate is arranged in the material guide pipe, and a blanking hole is formed in the material guide plate;
the material guiding plate is a spiral plate, a plurality of groups of material discharging holes are formed in the spiral plate, the material discharging holes are distributed at Kong Dengjiao degrees, and the material discharging holes in the same group are distributed at Kong Dengjiao degrees;
one end of the guide nozzle is of a circular tube structure, the other end of the guide nozzle is of a flat nozzle structure, and a flow dividing plate is arranged in the circular tube structure;
the spray head assembly is supported by adopting a forging process, and a heat-insulating coating is arranged on the inner wall of the laser hole;
the invention also relates to a manufacturing method of the laser cladding head for plane remanufacturing, which comprises the following steps:
step 1: setting core materials of an internal laser hole and a dressing mounting hole, and pouring a metal solution to prepare a blank;
step 2: forging the blank through a forging die to form a spray head assembly;
step 3: machining a hole groove and then installing accessories;
step 3, processing a hole groove, wherein the inclination of the laser hole is fixed, the height of the laser hole is changed by changing the axial distance of the rotary head, and the difference between the laser hole and the intersection point of the through hole is obtained, and the height drop of the laser hole is 5-10mm;
the beneficial effects are that:
1. multiple layers of additive cladding can be performed simultaneously.
2. And the cladding pipe is arranged to cover and protect the clad material, so that oxidation is avoided.
3. Simple structure and convenient use.
Drawings
FIG. 1 is a perspective view of a laser cladding head for planar remanufacturing according to the present invention.
Fig. 2 is a bottom view of a laser cladding head for planar remanufacturing according to the present invention.
FIG. 3 is a schematic view of a laser cladding head for planar remanufacturing according to the present invention.
Fig. 4 is a perspective view of a guide tube of embodiment 2 of a laser cladding head for planar remanufacturing according to the present invention.
Fig. 5 is a bottom view of a guide tube of embodiment 2 of a laser cladding head for planar remanufacturing according to the present invention.
FIG. 6 is a perspective view of a laser cladding head embodiment 3 introduction nozzle for planar remanufacturing according to the present invention.
In the accompanying drawings:
1. a spray head assembly; 2. a material guiding pipe; 3. a threaded hole; 4. a limiting ring; 5. a material spreading pipe; 6. a dressing tube mounting hole; 7. a middle partition plate; 8. a laser hole; 9. a fastening pin; 10. an introduction nozzle; 11. a material guide plate; 12. a flange plate; 13. and a blanking hole.
Detailed Description
Specific embodiments of the present invention will be further described below with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals.
It should be noted that, as used in the following description, the terms "front", "rear", "left", "right", "up" and "down" refer to the directions in which the judgment is made in fig. 1, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.
The invention relates to a laser cladding head for plane remanufacturing, which comprises a spray head assembly 1, a material guide pipe 2, a threaded hole 3, a limiting ring 4, a dressing pipe 5, a mounting hole of the dressing pipe 5, a middle partition 7, a laser hole 8, a fastening pin 9, a guide nozzle 10, a material guide plate 11, a flange plate 12 and a blanking hole 13, wherein the middle part of the spray head assembly 1 is provided with a through hole, the outer ring of the spray head assembly 1 is provided with three groups of laser holes 8, the laser holes 8 are obliquely arranged, the axes of the laser holes 8 are respectively intersected with the axis of the through hole, the material guide pipe 2 is arranged on the spray head assembly 1 and communicated with the middle through hole,
the spray head assembly 1 is formed by combining three petal-shaped structures, wherein the three petal-shaped structures are combined into a circular ring, the petal-shaped structures are staggered at equal intervals along the axial direction, and the rotation surface of the petal-shaped structures is trapezoidal;
the flap-shaped structure is correspondingly provided with a laser hole 8, the side of the laser hole 8 is provided with a mounting hole of the dressing pipe 5, the dressing pipe 5 is correspondingly arranged in the dressing mounting hole, and the leading-in nozzle 10 is arranged in the dressing mounting hole and extends into the laser hole 8;
the middle partition plate 7 is arranged in the middle through hole of the spray head assembly 1, the number of the middle partition plates 7 is three, the middle partition plates extend along the axial direction of the spray head assembly 1, the middle part of the middle partition plate 7 is provided with the upright post, the supporting strength of the middle partition plate 7 can be improved, the middle through hole is divided into three areas, and equal blanking is performed;
the flange plate 12 is arranged on the material guide pipe 2, the flange plate 12 is correspondingly arranged on the petal-shaped structure and is fixed through the fastening pin 9, so that the material guide pipe can be connected and fixed with the spray head assembly 1, the stability of moving operation is improved, and the requirement of high-speed movement is met;
the material guide pipe 2 is internally provided with a material guide plate 11, and the material guide plate 11 is provided with a blanking hole 13, so that metal powder can be blanked and mixed, the uniformity of the whole powder is improved, and the effect of cladding is prevented from being influenced by caking;
the material guide plate 11 is a spiral plate, a plurality of groups of material discharging holes 13 are formed in the spiral plate, the material discharging holes 13 are distributed at equal angles, the material discharging holes 13 in the same group are distributed at equal angles, metal powder can be further mixed, the metal powder is progressively pushed through a spiral structure, and the fed air flow is matched;
one end of the material guide nozzle is of a circular tube structure, the other end of the material guide nozzle is of a flat nozzle structure, and a flow dividing plate is arranged in the circular tube structure and can divide dressing materials and uniformly cover the material;
the spray head assembly 1 is supported by adopting a forging process, and a heat conducting coating is arranged on the inner wall of the laser hole 8, so that the capability of generating laser can be transferred, metal powder can be preheated, and the energy consumption is reduced;
when the laser device is used, the laser hole 8 is correspondingly provided with the laser generator, the laser device is fixedly provided with the threaded hole, the dressing pipe 5 is correspondingly communicated with the filling dressing pipe, the material guiding pipe 2 is communicated with the metal powder, and the metal powder in the laser corresponding area is used for cladding and material adding, so that continuous overlapping stacking is carried out due to different heights, synchronous multilayer cladding is formed, and the purpose of carrying out quick cladding on a plane is achieved.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.

Claims (8)

1. A laser cladding head for planar remanufacturing, characterized in that: including shower nozzle assembly (1), passage (2), screw hole (3), spacing ring (4), dressing pipe (5) mounting hole, middle part baffle (7), laser hole (8), fastening pin (9), leading-in mouth (10), stock guide (11), flange board (12), blanking hole (13), shower nozzle assembly (1) middle part is equipped with the through-hole, and shower nozzle assembly (1) outer lane is provided with three laser hole (8), laser hole (8) slant sets up, the axis of laser hole (8) is crossing with the through-hole axis respectively, and passage (2) are arranged in on shower nozzle assembly (1), and middle part through-hole intercommunication, shower nozzle assembly (1) are formed by three petal form structural combination formula ring, petal form structural edge axial equidistance dislocation, petal form structural revolution face is trapezoidal.
2. A laser cladding head for planar remanufacturing according to claim 1, wherein: the dressing tube is characterized in that a laser hole (8) is correspondingly formed in the petal-shaped structure, a dressing tube (5) mounting hole is formed in the side of the laser hole (8), the dressing tube (5) is correspondingly arranged in the dressing mounting hole, and the leading-in nozzle (10) is arranged in the dressing mounting hole and extends into the laser hole (8).
3. A laser cladding head for planar remanufacturing according to claim 1, wherein: the novel shower nozzle is characterized in that a middle partition plate (7) is arranged in a middle through hole of the shower nozzle assembly (1), the number of the middle partition plates (7) is three, the shower nozzle assembly (1) extends axially, and an upright column is arranged in the middle of the middle partition plate (7).
4. A laser cladding head for planar remanufacturing according to claim 1, wherein: the flange plate (12) is arranged on the material guide pipe (2), and the flange plate (12) is correspondingly arranged on the petal-shaped structure and is fixed through the fastening pin (9).
5. A laser cladding head for planar remanufacturing according to claim 1, wherein: a material guide plate (11) is arranged in the material guide pipe (2), and a blanking hole (13) is formed in the material guide plate (11).
6. A laser cladding head for planar remanufacturing according to claim 1, wherein: the material guiding plate (11) is a spiral plate, a plurality of groups of material discharging holes (13) are formed in the spiral plate, the material discharging holes (13) are distributed at equal angles, and the material discharging holes (13) in the same group are distributed at equal angles.
7. A laser cladding head for planar remanufacturing according to claim 3, wherein: one end of the guide-in nozzle (10) is of a circular tube structure, the other end of the guide-in nozzle is of a flat nozzle structure, and a flow dividing plate is arranged in the circular tube structure.
8. A laser cladding head for planar remanufacturing according to claim 1, wherein: the spray head assembly (1) is manufactured by adopting a forging process, and a heat conducting coating is arranged on the inner wall of the laser hole (8).
CN202110567762.XA 2021-05-24 2021-05-24 Laser cladding head for plane remanufacturing and manufacturing method thereof Active CN113308691B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110567762.XA CN113308691B (en) 2021-05-24 2021-05-24 Laser cladding head for plane remanufacturing and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110567762.XA CN113308691B (en) 2021-05-24 2021-05-24 Laser cladding head for plane remanufacturing and manufacturing method thereof

Publications (2)

Publication Number Publication Date
CN113308691A CN113308691A (en) 2021-08-27
CN113308691B true CN113308691B (en) 2023-05-26

Family

ID=77374572

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110567762.XA Active CN113308691B (en) 2021-05-24 2021-05-24 Laser cladding head for plane remanufacturing and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN113308691B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014074188A1 (en) * 2012-09-12 2014-05-15 Siemens Energy, Inc. Laser cladding system filler material distribution apparatus
CN212175041U (en) * 2020-05-06 2020-12-18 南京辉锐光电科技有限公司 Inner hole cladding laser cladding head

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1112276C (en) * 2000-01-07 2003-06-25 清华大学 Split-type coaxial powder-feeding nozzle for laser fusion and coating
CN1139455C (en) * 2001-03-30 2004-02-25 清华大学 Adjustable wide-band bidirectional symmetrical powder-feeding laser melting-painting nozzle
WO2004039531A2 (en) * 2002-10-31 2004-05-13 Ehsan Toyserkani System and method for closed-loop control of laser cladding by powder injection
JP5292256B2 (en) * 2009-10-20 2013-09-18 株式会社日立製作所 Laser processing head and laser cladding method
CN104625656B (en) * 2015-02-15 2017-04-05 昆山永年先进制造技术有限公司 Integrally formed technique and its cladding forging equipment used are forged in cladding
US11484973B2 (en) * 2016-11-28 2022-11-01 Raytheon Technologies Corporation Laser cladding system and method
JP2019037997A (en) * 2017-08-23 2019-03-14 中村留精密工業株式会社 Laser cladding device
CN207713821U (en) * 2017-11-23 2018-08-10 西安中科中美激光科技有限公司 A kind of expansible multiple laser cladding head of center powder feeding
CN207596963U (en) * 2017-12-14 2018-07-10 西安中科中美激光科技有限公司 Multi-layer gas barrier laser melting-painting nozzle and the laser spraying device with the nozzle
CN212175044U (en) * 2020-05-06 2020-12-18 南京辉锐光电科技有限公司 High-precision laser cladding head part

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014074188A1 (en) * 2012-09-12 2014-05-15 Siemens Energy, Inc. Laser cladding system filler material distribution apparatus
CN212175041U (en) * 2020-05-06 2020-12-18 南京辉锐光电科技有限公司 Inner hole cladding laser cladding head

Also Published As

Publication number Publication date
CN113308691A (en) 2021-08-27

Similar Documents

Publication Publication Date Title
CN104498943B (en) Nuclear heavy blank molding process and LCD-EBAM integrated printing equipment
CN102606224A (en) Impulse steam turbine welding partition board with embedded fixed blades and assembling process of impulse steam turbine welding partition board
EP3631037B1 (en) Plasma coating lance for internal coatings
CN113308691B (en) Laser cladding head for plane remanufacturing and manufacturing method thereof
EP1923138B1 (en) Method and atomiser for serial coating of workpieces
CN206121982U (en) Be suitable for and directly spray mud to atomizer of mummification tower
CN114160814B (en) Gas atomization powder mixing device and powder mixing method for metal material laser additive manufacturing
CN110406829A (en) Pot type transport vehicle tank body assembly and its manufacturing method
CN100434217C (en) Group electrode electric discharge machining method with a large number of tiny holes
CN103990800A (en) Pressure relief type paraxial powder feeding spray nozzle device for laser 3D printer
CN202224619U (en) Gas-water spraying device for continuous casting
CN215033615U (en) Atomizing nozzle assembly of high fine grain copper alloy powder
CN211679913U (en) Multi-section universal secondary cooling spray device for square and round billet arc continuous casting machine
CN2360164Y (en) Dusting appts of collecting powder
CN100491035C (en) Method and device for saw blade direct machining for section bar
CN206416416U (en) Double coloured plastic injection machine fixed form
CN210674620U (en) Three-dimensional spray dust removal device
CN208501099U (en) A kind of laser melting coating powder separator
KR20230129084A (en) Gas Spraying Apparatus for Manufacturing Metal and Alloy Powders and Apparatus for Manufacturing Metal Powder Using the Same
CN102773435B (en) Device suitable for producing billets with square and round sections
CN201744659U (en) Two-staged atomization spray nozzle device for molten metal spray
CN218078450U (en) Solid conical nozzle with adjustable spraying angle
CN217370468U (en) Large-scale revolving stage formula companion section of thick bamboo device
RU218217U1 (en) Nozzle head for hybrid laser cladding of powder materials and wire
CN108555290A (en) Mandrel cooling system and plug thermoregulating system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant