CN116926535A - Laser cladding high-entropy alloy powder presetting device and method - Google Patents
Laser cladding high-entropy alloy powder presetting device and method Download PDFInfo
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- CN116926535A CN116926535A CN202310926690.2A CN202310926690A CN116926535A CN 116926535 A CN116926535 A CN 116926535A CN 202310926690 A CN202310926690 A CN 202310926690A CN 116926535 A CN116926535 A CN 116926535A
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- 239000000956 alloy Substances 0.000 title claims abstract description 93
- 239000000843 powder Substances 0.000 title claims abstract description 92
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 91
- 238000004372 laser cladding Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 103
- 238000003825 pressing Methods 0.000 claims abstract description 26
- 239000000758 substrate Substances 0.000 claims description 33
- 238000005086 pumping Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 11
- 239000011248 coating agent Substances 0.000 abstract description 10
- 238000007790 scraping Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000001744 histochemical effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING 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
- C23C—COATING 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- 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
Abstract
The invention discloses a laser cladding high-entropy alloy powder presetting device and a method, which belong to the field of high-entropy alloy coating, wherein a box body for containing alloy powder is connected to the lower surface of a mounting plate in a sliding manner, a pressing roller is positioned between the box body and a scraping plate, the distance between the scraping plate and a base material is smaller than the distance between the pressing roller and the base material, and the presetting method of the laser cladding high-entropy alloy powder presetting device comprises the steps of processing the base material, adjusting the thickness of the preset coating, presetting the coating and recovering the alloy powder. According to the invention, the box body drives the material pressing roller to roll on the upper part of the base material when moving, the material pressing roller can roll on alloy powder on the upper part of the base material, so that the alloy powder is compacted, the arrangement of the elliptical plates enables the alloy powder not to fall off from two sides of the base material in a large amount, so that the thickness of a preset layer of the alloy powder is uneven, and the preset layer compacted by the material pressing roller is scraped by the scraping plate, so that the preset layer is in a proper thickness.
Description
Technical Field
The invention relates to the technical field of high-entropy alloy coatings, in particular to a laser cladding high-entropy alloy powder presetting device and method.
Background
The preparation of the coating by laser cladding is a new application of laser in the field of surface technology, and the laser cladding technology has some unique advantages compared with other coating preparation technologies, such as the metallurgical bonding quality of the coating and the substrate; the thickness of the coating is easy to control; the coating has compact structure, high histochemical uniformity and fine grains, and the strength and hardness of the reinforced alloy are raised. Therefore, in the field of surface treatment, research and development of laser coverage is a popular direction in recent years.
Refractory high-entropy alloy is formed by adding high-melting-point refractory elements such as Ti, cr, nb, zr and the like on the basis of the high-entropy alloy, and excellent high-temperature resistance of the refractory high-entropy alloy is used as a heat-resistant coating, so that research has been conducted by scientific researchers, but reports on the refractory high-entropy alloy are relatively few at present, mainly the addition of the high-melting-point elements is more difficult to control in the coating preparation process, and the excellent high-temperature oxidation resistance of the refractory high-entropy alloy has great significance in practical application.
In order to solve the above problems, patent publication No. CN116024480a discloses a high entropy alloy material and a preparation method thereof, which is characterized in that a high entropy alloy powder of TiMoNbCr is preset on a surface of a substrate and is subjected to constant temperature treatment at 60-100 ℃ for 3-6 hours, a cladding layer is obtained by laser cladding, the alloy powder is preset on the surface of the substrate in a laboratory stage, the manual treatment makes the preset thickness and density difficult to be ensured, the manual preset easily causes non-uniformity of the preset layer, and if the high entropy alloy material is applied to industry, an apparatus capable of efficiently presetting the alloy powder on the substrate and making the thickness and density of the alloy powder uniform is required to solve the defects of manual treatment.
Disclosure of Invention
The invention aims to provide a laser cladding high-entropy alloy powder presetting device capable of uniformly presetting alloy powder on a substrate, and a presetting method capable of automatically controlling the thickness of the preset alloy powder so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a laser cladding high entropy alloy powder preset device, includes the base, the last fixedly connected with mounting bracket of base, the middle part fixedly connected with hydraulic press of mounting bracket, the output fixedly connected with link of hydraulic press, the bottom fixedly connected with mounting panel of link, the lower surface sliding connection of mounting panel has the box that is used for holding alloy powder, the unloading hole has been seted up to the bottom of box, the lateral part of box rotates and is connected with the swager roller, the lateral part fixedly connected with scraper blade of box, the swager roller is located between box and the scraper blade, the distance between scraper blade and the substrate is less than the distance between swager roller and the substrate.
Preferably, the middle part fixedly connected with support of mounting bracket, hydraulic press fixed connection is in the middle part of support, the upper surface fixedly connected with electric slide of box, the spout with electric slide complex is seted up to the lower surface of mounting panel, two mount pad of bilateral symmetry fixedly connected with of box, the swager roller rotates to be connected between two mount pads, two the equal fixedly connected with installation pole of tip of mount pad, scraper blade fixed connection is between two installation poles.
Preferably, the lateral part fixedly connected with installation piece of box, the equal fixedly connected with straight telescopic link in four corners of the lower surface of installation piece, four the bottom of straight telescopic link is fixedly connected with wheel seat jointly, the middle part of wheel seat rotates and is connected with the movable wheel, movable wheel roll connection is on the substrate, four all cup jointed first spring on the straight telescopic link, the both ends of first spring respectively with installation piece and wheel seat fixed connection, the middle part fixedly connected with of installation piece lower surface is used for controlling the pressure sensitive switch of hydraulic press, wheel seat and pressure sensitive switch intermittent type offset.
Preferably, the middle part fixedly connected with two stands of base, two the equal fixedly connected with in top of stand is used for placing the placing table of substrate, two the common fixedly connected with in middle part of stand is used for accepting the frame of accepting that drops metal powder on the substrate, it has the inclined plane that is used for water conservancy diversion metal powder and is used for holding metal powder to accept the plane in the frame.
Preferably, both ends of the pressing roller are all limited and slidingly connected with an elliptic plate, the elliptic plate is attached to both sides of the base material, two electric sliding rods controlled by a pressure-sensitive switch are arranged in the middle of the mounting seat, one ends of the electric sliding rods are rotationally connected with balls, the balls are rotationally connected with the end faces of the elliptic plate, the other ends of the electric sliding rods are fixedly connected with connecting rods, the end parts of the connecting rods are fixedly connected with baffle plates, and the baffle plates are slidingly connected to both sides of the discharging hole at the bottom of the box body.
Preferably, two sides fixedly connected with of the top of box take out the material pipe, two take out the tip of material pipe all fixedly connected with take out the material mouth, take out the material mouth and accept the plane laminating in the frame, take out the mid-mounting of material pipe and have the elevator pump.
Preferably, the material pumping pipe comprises a horizontal section and a vertical section, the material pumping nozzle is fixedly connected to the bottom of the vertical section of the material pumping pipe, a first transverse plate is fixedly connected to the horizontal section of the material pumping pipe, a second transverse plate is rotatably connected to the side part of the first transverse plate, and the rotating shaft of the second transverse plate and the horizontal section of the material pumping pipe are located on the same axis.
Preferably, the lower surface of the second transverse plate is fixedly connected with a bump, and the elliptical plate is intermittently abutted against the bump.
Preferably, the upper surfaces of the first transverse plate and the second transverse plate are respectively fixedly connected with a bent piston cylinder and a bent piston rod, the bent piston rods are in sliding connection in the bent piston cylinders, the bent piston rods and the bent piston cylinders are jointly sleeved with second springs, two ends of each second spring are respectively fixedly connected with the first transverse plate and the second transverse plate, the lower part of the vertical section of the pumping pipe is fixedly connected with a mounting ring, the side wall of the mounting ring is fixedly connected with a straight piston cylinder, the straight piston cylinders are in sliding connection with straight piston rods, the straight piston rods are in intermittent contact with inclined planes in the bearing frame, and a pipeline is fixedly connected between the straight piston cylinders and the bent piston cylinders.
A presetting method of a laser cladding high-entropy alloy powder presetting device comprises the following steps:
s1: polishing the substrate, and placing the polished substrate on a placing table;
s2: starting the hydraulic press to enable the box body to be close to the base material, stopping the operation of the hydraulic press after the movable wheel is contacted with the base material, and adding alloy powder into the box body;
s3: controlling the electric sliding block to slide on the upper surface of the mounting plate, so that the box body is driven to move on the upper part of the base material;
s4: the alloy powder falls from the lower part of the box body to the upper surface of the base material, then the material pressing roller rolls on the base material to compact the alloy powder, and then the scraper scrapes off the superfluous alloy powder from the base material, so that the thickness of the alloy powder covered on the base material reaches the required thickness;
s5: the bearing frame bears the fallen alloy powder, the lifting pump operates, and the alloy powder is pumped into the box body through the pumping nozzle for recycling.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the box body drives the material pressing roller to roll on the upper part of the base material through the mounting seat when moving, a gap is reserved between the material pressing roller and the base material, when the material pressing roller moves along with the box body, the material pressing roller can roll on alloy powder on the upper part of the base material, so that the alloy powder is compacted, the arrangement of the elliptical plate can prevent the alloy powder from falling from two sides of the base material in a large amount in the compaction process to cause uneven thickness of a preset layer of the alloy powder, and when the base material is compacted by the rolling of the material pressing roller, the scraping plate scrapes the compacted preset layer of the material pressing roller, so that the preset layer is in a proper thickness.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the whole structure of the present invention;
FIG. 3 is a schematic view of the structure of the placement stage of the present invention;
FIG. 4 is a schematic view of the structure of the mounting plate of the present invention;
FIG. 5 is a schematic diagram of the structure of the pressure sensitive switch of the present invention;
FIG. 6 is a schematic view of the structure of the baffle plate of the present invention;
FIG. 7 is a schematic view of the structure of the ball bearing of the present invention;
FIG. 8 is a schematic view of the structure of the material extracting pipe of the present invention;
fig. 9 is a schematic view of the structure of the first transverse plate of the present invention.
In the figure: 1. a base; 11. a mounting frame; 12. a column; 13. a placement table; 14. a receiving frame; 2. a hydraulic press; 21. a bracket; 22. a connecting frame; 23. a mounting plate; 24. an electric slide block; 25. a case; 26. a mounting base; 27. a material pressing roller; 3. an electric slide bar; 31. a connecting rod; 32. a baffle; 33. a ball; 34. an elliptical plate; 35. a mounting rod; 36. a scraper; 4. a mounting block; 41. a wheel seat; 42. a straight telescopic rod; 43. a first spring; 44. a pressure sensitive switch; 45. a moving wheel; 5. a material pumping pipe; 51. a lift pump; 52. a first cross plate; 53. a second cross plate; 54. a bump; 55. a curved piston cylinder; 56. a bent piston rod; 57. a second spring; 6. a mounting ring; 61. a straight piston cylinder; 62. a straight piston rod; 63. a pipe; 64. and a material sucking nozzle.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
Referring to fig. 1-9, the present invention provides a technical solution: the utility model provides a laser cladding high entropy alloy powder preset device, which comprises a base 1, the last fixedly connected with mounting bracket 11 of base 1, the middle part fixedly connected with hydraulic press 2 of mounting bracket 11, the output fixedly connected with link 22 of hydraulic press 2, the bottom fixedly connected with mounting panel 23 of link 22, the lower surface sliding connection of mounting panel 23 has the box 25 that is used for holding alloy powder, the unloading hole has been seted up to the bottom of box 25, the lateral part rotation of box 25 is connected with swager roller 27, the lateral part fixedly connected with scraper blade 36 of box 25, swager roller 27 is located between box 25 and the scraper blade 36, the distance between scraper blade 36 and the substrate is less than the distance between swager roller 27 and the substrate.
The middle part fixedly connected with support 21 of mounting bracket 11, hydraulic press 2 fixed connection is in the middle part of support 21, and the upper surface fixedly connected with electronic slider 24 of box 25, the spout with electronic slider 24 complex is seted up to the lower surface of mounting panel 23, and the both sides symmetry fixedly connected with of box 25 two mount pads 26, swage roll 27 rotate to be connected between two mount pads 26, the equal fixedly connected with installation pole 35 of tip of two mount pads 26, scraper blade 36 fixed connection is between two installation poles 35.
The lateral part fixedly connected with installation piece 4 of box 25, the four corners of the lower surface of installation piece 4 is all fixedly connected with straight telescopic link 42, the common fixedly connected with wheel seat 41 in bottom of four straight telescopic links 42, the middle part of wheel seat 41 rotates and is connected with movable wheel 45, movable wheel 45 roll connection is on the substrate, all cup jointed first spring 43 on four straight telescopic link 42, the both ends of first spring 43 respectively with installation piece 4 and wheel seat 41 fixed connection, the middle part fixedly connected with of installation piece 4 lower surface is used for controlling the pressure sensitive switch 44 of hydraulic press 2, wheel seat 41 and pressure sensitive switch 44 intermittent type offset.
Two stand columns 12 are fixedly connected to the middle of the base 1, a placing table 13 for placing a base material is fixedly connected to the tops of the two stand columns 12, a receiving frame 14 for receiving metal powder falling on the base material is fixedly connected to the middle of the two stand columns 12, and an inclined plane for guiding the metal powder and a plane for containing the metal powder are arranged in the receiving frame 14.
Both ends of the pressing roller 27 are all limited and sliding connected with an elliptic plate 34, the elliptic plate 34 is attached to both sides of a base material, the middle parts of the two mounting seats 26 are all provided with an electric sliding rod 3 controlled by a pressure-sensitive switch 44, one end of the electric sliding rod 3 is rotationally connected with a ball 33, the ball 33 is rotationally connected with the end face of the elliptic plate 34, the other end of the electric sliding rod 3 is fixedly connected with a connecting rod 31, the end part of the connecting rod 31 is fixedly connected with a baffle 32, and the baffle 32 is slidably connected to both sides of a blanking hole at the bottom of the box 25.
Two sides of the top of the box 25 are fixedly connected with two material extracting pipes 5, the end parts of the two material extracting pipes 5 are fixedly connected with material extracting nozzles 64, the material extracting nozzles 64 are attached to the plane in the bearing frame 14, and the lifting pump 51 is arranged in the middle of the material extracting pipe 5.
The material pumping pipe 5 comprises a horizontal section and a vertical section, the material pumping nozzle 64 is fixedly connected to the bottom of the vertical section of the material pumping pipe 5, the horizontal section of the material pumping pipe 5 is fixedly connected with a first transverse plate 52, the side part of the first transverse plate 52 is rotationally connected with a second transverse plate 53, and the rotating shaft of the second transverse plate 53 and the horizontal section of the material pumping pipe 5 are positioned on the same axis.
The lower surface of the second transverse plate 53 is fixedly connected with a convex block 54, and the elliptical plate 34 is intermittently abutted against the convex block 54.
The upper surfaces of the first transverse plate 52 and the second transverse plate 53 are respectively fixedly connected with a bent piston cylinder 55 and a bent piston rod 56, the bent piston rod 56 is slidably connected in the bent piston cylinder 55, the bent piston rod 56 and the bent piston cylinder 55 are jointly sleeved with a second spring 57, two ends of the second spring 57 are respectively fixedly connected with the first transverse plate 52 and the second transverse plate 53, the lower part of the vertical section of the pumping pipe 5 is fixedly connected with a mounting ring 6, the side wall of the mounting ring 6 is fixedly connected with a straight piston cylinder 61, the straight piston cylinder 61 is slidably connected with a straight piston rod 62 in a sliding manner, the straight piston rod 62 is intermittently abutted against an inclined plane in the bearing frame 14, and a pipeline 63 is fixedly connected between the straight piston cylinder 61 and the bent piston cylinder 55.
A presetting method of a laser cladding high-entropy alloy powder presetting device comprises the following steps:
s1: polishing the substrate, and placing the polished substrate on a placing table 13;
s2: starting the hydraulic press 2 to enable the box 25 to be close to the base material, stopping the operation of the hydraulic press 2 after the movable wheel 45 contacts with the base material, and adding alloy powder into the box 25;
s3: controlling the electric sliding block 24 to slide on the upper surface of the mounting plate 23, so that the box 25 is driven to move on the upper part of the base material;
s4: alloy powder falls from the lower part of the box 25 to the upper surface of the substrate, then the pressing roller 27 rolls on the substrate to compact the alloy powder, and then the scraper 36 scrapes off excessive alloy powder from the substrate so that the thickness of the alloy powder covered on the substrate reaches the required thickness;
s5: the receiving frame 14 receives the dropped alloy powder, the lift pump 51 operates, and the alloy powder is pumped into the tank 25 through the pumping nozzle 64 to be recycled.
Working principle: according to the laser cladding high-entropy alloy powder presetting device, when in use, a polished substrate is placed on the placing table 13, and the substrate and the placing table 13 can be adsorbed and fixed through magnetic attraction or negative pressure, so that the connection between the substrate and the placing table 13 is firmer;
after the base material is placed firmly, starting the hydraulic press 2 to enable the output end of the hydraulic press 2 to extend, further fixedly connecting the connecting frame 22 at the output end of the hydraulic press 2 to move downwards, at the moment, the connecting frame 22 drives the mounting plate 23 to move downwards, further the electric sliding block 24 at the lower part of the mounting plate 23 drives the box 25 to move downwards synchronously, the box 25 is gradually close to the base material, the moving wheel 45 at the side part of the box 25 is gradually close to the base material, finally the moving wheel 45 is in contact with the base material, then the base material blocks the moving wheel 45, the wheel seat 41 moves upwards relative to the mounting block 4, at the moment, four straight telescopic rods 42 are shortened, the wheel seat 41 presses the pressure-sensitive switch 44, at the moment, the pressure-sensitive switch 44 controls the hydraulic press 2 to stop running, and therefore the vertical height between the box 25 and the base material is not changed any more;
while the pressure-sensitive switch 44 is pressed, the electric slide bar 3 is controlled to operate, the electric slide bar 3 comprises a magnetic rod body and a seat body with a coil arranged inside, the seat body is fixed on the mounting seat 26, the rod body is arranged in the seat body in a sliding mode, the electric slide bar 3 penetrates through the coil, the axial sliding direction of the electric slide bar 3 is changed by controlling the electrifying direction of the coil, when the pressure-sensitive switch 44 is pressed, the electric slide bar 3 moves towards the direction of the elliptical plate 34, namely, the pressure-sensitive switch 44 is pressed to change the electrifying current direction of the coil, the electric slide bar 3 can also take other forms as long as the rod body can slide in the mounting seat 26, for example, a screw rod screw mechanism is adopted, a screw rod can slide through electric control driving rotation. At this time, the electric slide bar 3 pushes the elliptic plate 34 through the ball 33, so that the elliptic plate 34 slides on the material pressing roller 27, at this time, the elliptic plate 34 can be close to the base material and contacts with two sides of the base material, the end part of the baffle 32 and the contact surface of the elliptic plate 34 and the base material are in the same plane, and then the width of the blanking hole of the box 25 is equal to the width of the base material, so that more alloy powder outside the base material cannot fall off;
the electric sliding block 24 is controlled to slide on the lower part of the mounting plate 23, at the moment, the electric sliding block 24 drives the box 25 to linearly move on the upper part of the base material, alloy powder in the box 25 can fall on the surface of the base material, the box 25 drives the pressing roller 27 to roll on the upper part of the base material through the mounting seat 26 when moving, a gap is reserved between the pressing roller 27 and the base material, when the pressing roller 27 moves along with the box 25, the pressing roller 27 can roll on the alloy powder on the upper part of the base material, so that the alloy powder is compacted, the elliptical plate 34 is arranged, so that the alloy powder cannot fall from two sides of the base material in a large amount in the compacting process, the thickness of a preset layer of the alloy powder is uneven, and when the base material is subjected to rolling compaction of the pressing roller 27, the scraping plate 36 scrapes the compacted preset layer of the pressing roller 27, so that the preset layer is in a proper thickness;
the bearing frame 14 bears the alloy powder which falls, when the distance that the elliptical plate 34 moves towards the middle of the material pressing roller 27 is long, the width of the base material is narrow, the alloy powder which falls from the base material at the moment falls on the inclined plane in the bearing frame 14, at the moment, the elliptical plate 34 moves to the lower part of the convex block 54, therefore, when the elliptical plate 34 rotates, the elliptical plate 34 can intermittently push and lift the second transverse plate 53 through the convex block 54, so that the second transverse plate 53 rotates relative to the first transverse plate 52, at the moment, the second transverse plate 53 drives the bent piston rod 56 to slide into the bent piston cylinder 55, so that the medium in the bent piston cylinder 55 enters the straight piston cylinder 61, at the moment, the straight piston rod 62 in the straight piston cylinder 61 stretches out and knocks on the inclined plane in the bearing frame 14, so that the alloy powder on the inclined plane in the bearing frame 14 slides onto the plane in the bearing frame 14 after being vibrated, at the moment, the lifting pump 51 on the material pumping pipe 5 operates, the alloy powder is recovered into the box 25 through the material pumping nozzle 64, the alloy powder pumping nozzle 64 moves synchronously along the box 25, so that a large amount of alloy powder which falls in the bearing frame 14 is pumped;
here, when the elliptical plate 34 is initially contacted with the bump 54, the contact position of the elliptical plate 34 and the bump 54 is close to the rotation axis of the second transverse plate 53, and then the rotation angle and the rotation amplitude of the second transverse plate 53 are larger, so that the impact force of the straight piston rod 62 on the alloy powder of the supporting frame 14 is larger, at this time, a small amount of alloy powder falling on the lower part of the inner inclined plane of the supporting frame 14 is subjected to vibration and falls on the plane in the supporting frame 14, because the amount of alloy powder on the inclined plane is small, and then a small amount of alloy powder can fall on the plane in the supporting frame 14 by increasing the impact force, and when the elliptical plate 34 slides to the lower part of the bump 54 and is far away from the rotation point of the second transverse plate 53, the rotation amplitude and the rotation speed of the second transverse plate 53 are reduced, at this time, the impact force of the straight piston rod 62 on the supporting frame 14 is smaller, the corresponding state of the alloy powder of the supporting frame 14 is that the alloy powder is stacked on the inclined plane of the supporting frame 14 at this time, the height of the alloy powder is higher, so that the impact force of the straight piston rod 62 is reduced, the alloy powder cannot fall on the plane of the supporting frame 14, and the outside of the supporting frame 14 due to the large impact force, and the large amount of the alloy powder can not need to be recovered.
After the alloy powder is pre-set on the substrate, the substrate is removed and left to stand for three to six hours at a constant temperature of sixty to one hundred degrees.
Although embodiments of the present invention 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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A laser cladding high-entropy alloy powder presetting device which is characterized in that: including base (1), the upper surface fixedly connected with mounting bracket (11) of base (1), the middle part fixedly connected with hydraulic press (2) of mounting bracket (11), the output fixedly connected with link (22) of hydraulic press (2), the bottom fixedly connected with mounting panel (23) of link (22), the lower surface sliding connection of mounting panel (23) has box (25) that are used for holding alloy powder, the unloading hole has been seted up to the bottom of box (25), the lateral part rotation of box (25) is connected with swager (27), the lateral part fixedly connected with scraper blade (36) of box (25), swager (27) are located between box (25) and scraper blade (36), the distance between scraper blade (36) and the substrate is less than the distance between swager (27) and the substrate.
2. The laser cladding high-entropy alloy powder presetting device according to claim 1, wherein: the middle part fixedly connected with support (21) of mounting bracket (11), hydraulic press (2) fixedly connected with is in the middle part of support (21), the last fixed surface of box (25) is connected with electronic slider (24), the lower surface of mounting panel (23) seted up with electronic slider (24) complex spout, the bilateral symmetry fixedly connected with of box (25) two mount pads (26), swage roller (27) swivelling joint is between two mount pads (26), two equal fixedly connected with installation pole (35) of tip of mount pad (26), scraper blade (36) fixed connection is between two mount poles (35).
3. The laser cladding high-entropy alloy powder presetting device according to claim 1, wherein: the utility model discloses a hydraulic press, including box (25) and wheel seat (44), including box (25) lateral part fixedly connected with installation piece (4), the four equal fixedly connected with straight telescopic link (42) in four the four of the lower surface of installation piece (4) the bottom of straight telescopic link (42) is fixedly connected with wheel seat (41) jointly, the middle part of wheel seat (41) rotates and is connected with movable wheel (45), movable wheel (45) roll connection is on the substrate, four all cup jointed first spring (43) on straight telescopic link (42), the both ends of first spring (43) respectively with installation piece (4) and wheel seat (41) fixed connection, the middle part fixedly connected with of installation piece (4) lower surface is used for controlling pressure sensitive switch (44) of hydraulic press (2), wheel seat (41) and pressure sensitive switch (44) intermittent type offset.
4. The laser cladding high-entropy alloy powder presetting device according to claim 2, wherein: two stand (12) of middle part fixedly connected with of base (1), two the top of stand (12) is all fixedly connected with and is used for placing platform (13) of substrate, two the middle part of stand (12) is fixedly connected with jointly and is used for accepting frame (14) that drops metal powder on the substrate, it has the inclined plane that is used for water conservancy diversion metal powder and is used for holding the plane of metal powder to accept in frame (14).
5. The laser cladding high-entropy alloy powder presetting device according to claim 4, wherein: the utility model discloses a material pressing roller, including base material, electronic slide bar (3) of pressure sensitive switch (44) control, electronic slide bar (3) are connected with ball (33) in the middle part of mount pad (26), the terminal surface rotation of ball (33) and oval board (34) is connected, the other end fixedly connected with connecting rod (31) of electronic slide bar (3), the tip fixedly connected with baffle (32) of connecting rod (31), baffle (32) sliding connection is in the both sides of box (25) bottom unloading hole.
6. The laser cladding high-entropy alloy powder presetting device according to claim 5, wherein: two sides of the top of the box body (25) are fixedly connected with two material extracting pipes (5), two material extracting nozzles (64) are fixedly connected to the end parts of the material extracting pipes (5), the material extracting nozzles (64) are attached to the plane in the bearing frame (14), and a lifting pump (51) is mounted in the middle of the material extracting pipes (5).
7. The laser cladding high-entropy alloy powder presetting device according to claim 6, wherein: the material suction pipe (5) is composed of a horizontal section and a vertical section, the material suction nozzle (64) is fixedly connected to the bottom of the vertical section of the material suction pipe (5), a first transverse plate (52) is fixedly connected to the horizontal section of the material suction pipe (5), a second transverse plate (53) is rotatably connected to the side portion of the first transverse plate (52), and the rotating shaft of the second transverse plate (53) and the horizontal section of the material suction pipe (5) are located on the same axis.
8. The laser cladding high-entropy alloy powder presetting device according to claim 7, wherein: the lower surface of the second transverse plate (53) is fixedly connected with a convex block (54), and the elliptical plate (34) is intermittently abutted against the convex block (54).
9. The laser cladding high-entropy alloy powder presetting device according to claim 8, wherein: the upper surfaces of the first transverse plate (52) and the second transverse plate (53) are fixedly connected with a bent piston cylinder (55) and a bent piston rod (56) respectively, the bent piston rod (56) is slidably connected in the bent piston cylinder (55), the bent piston rod (56) and the bent piston cylinder (55) are jointly sleeved with a second spring (57), two ends of the second spring (57) are fixedly connected with the first transverse plate (52) and the second transverse plate (53) respectively, the lower part of a vertical section of the pumping pipe (5) is fixedly connected with a mounting ring (6), a straight piston cylinder (61) is fixedly connected on the side wall of the mounting ring (6), a straight piston rod (62) is slidably connected in the straight piston cylinder (61), the straight piston rod (62) is in intermittent offset with an inclined plane in the bearing frame (14), and a pipeline (63) is fixedly connected between the straight piston cylinder (61) and the bent piston cylinder (55).
10. A method for presetting a laser cladding high entropy alloy powder presetting device according to any one of claims 1-9, comprising the steps of:
s1: polishing the substrate, and placing the polished substrate on a placing table (13);
s2: starting the hydraulic press (2) to enable the box body (25) to be close to the base material, stopping the operation of the hydraulic press (2) after the movable wheel (45) is contacted with the base material, and adding alloy powder into the box body (25);
s3: controlling the electric sliding block (24) to slide on the upper surface of the mounting plate (23) so that the box body (25) is driven to move on the upper part of the base material;
s4: alloy powder falls from the lower part of the box body (25) to the upper surface of the base material, then the material pressing roller (27) rolls on the base material to compact the alloy powder, and then the scraper (36) scrapes off the superfluous alloy powder from the base material, so that the thickness of the alloy powder covered on the base material reaches the required thickness;
s5: the bearing frame (14) bears the alloy powder which falls, the lifting pump (51) operates, and the alloy powder is pumped into the box body (25) through the pumping nozzle (64) for recycling.
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