CN115350845A - Cold spraying device and cold spraying processing method thereof - Google Patents
Cold spraying device and cold spraying processing method thereof Download PDFInfo
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- CN115350845A CN115350845A CN202211276838.4A CN202211276838A CN115350845A CN 115350845 A CN115350845 A CN 115350845A CN 202211276838 A CN202211276838 A CN 202211276838A CN 115350845 A CN115350845 A CN 115350845A
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- spraying
- spray
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- powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
- B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
- B05B14/48—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths specially adapted for particulate material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
- B05B15/68—Arrangements for adjusting the position of spray heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
- B05B7/1404—Arrangements for supplying particulate material
- B05B7/1431—Arrangements for supplying particulate material comprising means for supplying an additional liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/1606—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air
- B05B7/1613—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air comprising means for heating the atomising fluid before mixing with the material to be sprayed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/12—Applying particulate materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/06—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
- B24C3/10—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces for treating external surfaces
- B24C3/12—Apparatus using nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
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- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a cold spraying device and a cold spraying processing method thereof, and relates to the technical field of cold spraying processing. The cold spraying device comprises a device main body, a spraying component and a powder feeding component; the device comprises a device body, a spraying assembly, a substrate moving platform and a clamping device, wherein a spraying cavity is arranged in the device body, the spraying assembly is arranged in the spraying cavity and comprises a spray gun and the substrate moving platform, the spray gun is arranged above the substrate moving platform, and the substrate moving platform is provided with the clamping device for placing a substrate; the powder feeding assembly is arranged on the device main body and comprises a spraying powder feeder and a sand blasting feeder, and the spraying powder feeder and the sand blasting feeder are independently communicated with the spray gun. The technical scheme of the invention can solve the problems of complicated equipment operation and unstable process quality caused by discontinuous process flow due to the fact that the factor function system of the existing cold spraying process equipment is separately arranged.
Description
Technical Field
The invention relates to the technical field of cold spraying processing, in particular to a cold spraying device and a cold spraying processing method thereof.
Background
The cold spraying technology is a novel high-efficiency, safe and environment-friendly material surface modification technology. In the cold spraying process, at the temperature lower than the melting point of the spraying powder, the spraying powder is driven by supersonic airflow to accelerate to impact the surface of the base material and continuously deposit on the surface to form a dense coating. The cold spraying technology avoids the problem that the coating performance is influenced by high-temperature oxidation, melting, crystallization and the like by virtue of the low-temperature process characteristics, so that the functional coatings such as corrosion-resistant, wear-resistant, insulating, conductive and magnetic-conductive coatings and the like are prepared on the surfaces of workpieces of metal, glass and ceramic.
The cold spraying technology is widely applied due to the high efficiency of the preparation, then the technical equipment system is relatively numerous and complex, and meanwhile, the process flow links need to be accurately controlled to ensure the excellent coating preparation quality. The existing cold spraying process equipment is a separated equipment system, consists of a plurality of sub-function systems and is coordinated to run so as to ensure the process implementation, the number of independent equipment is large, and the space occupancy rate is large; the gas and electric connection between each independent device is complex, high-temperature and high-pressure components exist, the pipelines and the connecting wires are arranged externally, the maintenance cost is high, and the troubleshooting difficulty is high after the fault occurs; the spraying process is complicated due to the excessive number of independent devices, the spraying and sand blasting processes are generally independently carried out, and the discontinuous operation process causes the fluctuation of the process quality.
Disclosure of Invention
The invention mainly aims to provide a cold spraying device and a cold spraying processing method thereof, aiming at solving the problems of complicated equipment operation and unstable process quality caused by discontinuous process flow due to the fact that the factor function system of the existing cold spraying process equipment is separately arranged.
To achieve the above object, the present invention provides a cold spray apparatus including:
the device comprises a device main body, wherein a spraying cavity is arranged in the device main body;
the spraying assembly is arranged in the spraying cavity and comprises a spraying gun and a substrate moving platform, the spraying gun is arranged above the substrate moving platform, and a clamp for placing a substrate is arranged on the substrate moving platform;
and the powder feeding component is arranged on the device main body and comprises a spraying powder feeder and a sand blasting feeder, and the spraying powder feeder and the sand blasting feeder are independently communicated with the spray gun.
In one embodiment, the powder feeding assembly further comprises a pneumatic control component, the pneumatic control component is respectively communicated with the spraying powder feeder and the sand blasting feeder, the pneumatic control component is provided with an air inlet, the air inlet is used for being communicated with an external air source, and the pneumatic control component conveys powder in the spraying powder feeder and the sand blasting feeder to the spray gun through the external air source.
In one embodiment, the cold spraying device further comprises a heating assembly, the heating assembly is arranged at the upper end of the spraying cavity, and the heating assembly is respectively communicated with the pneumatic control component and the spray gun and is used for introducing heated gas into the spray gun.
In an embodiment, still be equipped with air inlet duct and exhaust duct in the device main part, the air inlet duct with spraying cavity up end and external intercommunication, the exhaust duct with terminal surface and external intercommunication under the spraying cavity, the lower terminal surface of spraying cavity is equipped with the intercommunication uniformly the intercommunicating pore of exhaust duct, be equipped with powder collection box and fan in the exhaust duct, the air-out side of fan is external, the powder collection box is located one side of fan air inlet side.
In one embodiment, the spray gun is movable along the length of the spray chamber, the height of the spray gun relative to the substrate moving platform is adjustable, and the clamp is horizontally movable relative to the spray gun.
In one embodiment, the cold spray device further comprises a control assembly arranged on the device body, the control assembly comprises a controller and a control panel, the controller is electrically connected to the spray powder feeder, the sand blasting feeder, the spray gun, the substrate moving platform and the clamp, the control panel is electrically connected to the controller, and the control panel is arranged on the outer side face of the device body.
In one embodiment, a sound attenuation wall layer is arranged on the inner wall surface of the spraying chamber.
In one embodiment, the spraying chamber is provided with a chamber port communicated with the outer side surface of the device body, and a chamber door is installed at the chamber port and used for opening or closing the spraying chamber.
In one embodiment, the chamber door is provided with an observation window, and the observation window is made of transparent material.
The invention also provides a cold spraying processing method applying the cold spraying device, which comprises the following steps:
respectively adding cold spraying raw materials and sand blasting raw materials into a spraying powder feeder and a sand blasting feeder;
fixing the sprayed base material on a clamp;
performing a sand blasting process flow on the substrate in the spraying chamber;
performing a cold spray process on the substrate in the spray chamber;
a cold spray sample was obtained.
In an embodiment, still be equipped with air inlet duct and exhaust passage in the device main part, the air inlet duct with spraying cavity up end and external intercommunication, the exhaust passage with terminal surface and external intercommunication under the spraying cavity, the lower terminal surface of spraying cavity is equipped with the intercommunication uniformly the intercommunicating pore of exhaust passage, along the flow direction of air current, be equipped with powder collection box and fan in the exhaust passage in proper order, carry out sandblast process flow step or to the substrate in the spraying cavity still include the step after carrying out the cold spraying process flow step to the substrate in the spraying cavity:
starting a fan, and recovering the undeposited powder through a powder recovery box;
wherein the powder recovered by the powder recovery box may be added to the blasting feeder as a blasting raw material in the steps of adding the cold spraying raw material and the blasting raw material to the spraying powder feeder and the blasting feeder, respectively.
According to the technical scheme, the spraying assembly is arranged in a spraying cavity of the device main body and comprises a spraying gun for spraying and a clamp for placing a sprayed substrate; and will send the powder subassembly to locate in the device main part, send the powder subassembly including with the spraying of the independent intercommunication of spray gun send powder ware and sandblast feeder, make the spray gun accessible sandblast the feeder and carry out the sandblast to the substrate, can also pass through the spraying send the powder ware to carry out cold spray to the substrate and handle. Through controlling spraying powder feeder and sandblast feeder, realize going on in succession the substrate sandblast and spraying, can maintain in the process of continuous processing the airtight of spraying cavity need not to take out the substrate, reduces the fluctuation of cold spraying substrate technology quality when simplifying the operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a cold spray apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of an embodiment of a cold spray apparatus according to the present invention with its door open;
FIG. 3 is a cross-sectional view of an air inlet duct and an air outlet duct in an embodiment of a cold spray apparatus of the present invention;
FIG. 4 is a schematic view of another aspect of the cold spray apparatus of the present invention;
FIG. 5 is a schematic view of a substrate stage according to an embodiment of the cold spray apparatus of the present invention;
FIG. 6 is a schematic view showing the communication between the powder feeding assembly, the heating assembly and the spray gun in an embodiment of the cold spray apparatus of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | Cold |
100 | |
| 110 | |
111 | |
| 120 | |
121 | |
| 130 | |
131 | |
| 132 | |
133 | |
| 140 | Sound |
150 | |
| 151 | |
200 | |
| 210 | |
220 | |
| 221 | |
222 | |
| 230 | |
300 | |
| 310 | |
320 | |
| 330 | |
331 | |
| 400 | |
410 | |
| 420 | |
500 | Heating assembly |
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The cold spraying technology is widely applied due to the high efficiency of the preparation, then the technical equipment system is relatively numerous and complex, and meanwhile, the process flow links need to be accurately controlled to ensure the excellent coating preparation quality. The existing cold spraying process equipment is a separated equipment system, consists of a plurality of sub-function systems and is coordinated to run so as to ensure the process implementation, the quantity of independent equipment is large, and the space occupancy rate is large; the gas and electric connection between each independent device is complex, high-temperature and high-pressure components exist, the pipelines and the connecting wires are arranged externally, the maintenance cost is high, and the troubleshooting difficulty is high after the fault occurs; the spraying process is complicated due to the excessive number of independent devices, the spraying and sand blasting processes are generally independently carried out, and the discontinuous operation process causes the fluctuation of the process quality.
In order to solve the above problems, the present invention provides a cold spray apparatus and a cold spray processing method thereof.
Referring to fig. 1 to 3, in the present embodiment, the cold spray device 10 includes a device body 100, a spray assembly 200, and a powder feeding assembly 300. The device main body 100 is provided with a spraying chamber 110, the spraying component 200 is arranged in the spraying chamber 110, the spraying component 200 comprises a spray gun 210 and a substrate moving platform 220, the spray gun 210 is arranged above the substrate moving platform 220, and the substrate moving platform 220 is provided with a clamp 230 for placing a substrate; the powder feeding assembly 300 is disposed on the apparatus main body 100, the powder feeding assembly 300 includes a spraying powder feeder 310 and a blasting feeder 320, and the spraying powder feeder 310 and the blasting feeder 320 are independently communicated with the spray gun 210.
By disposing the spray assembly 200 in the spray chamber 110 of the apparatus body 100, the spray assembly 200 includes a spray gun 210 for spraying and a jig 230 for placing a substrate to be sprayed; and the powder feeding assembly 300 is arranged on the device main body 100, wherein the powder feeding assembly 300 comprises a spraying powder feeder 310 and a sand blasting feeder 320 which are independently communicated with the spray gun 210, so that the spray gun 210 can perform sand blasting treatment on the base material through the sand blasting feeder 320, and can also perform cold spraying treatment on the base material through the spraying powder feeder 310. By controlling the spraying powder feeder 310 and the blasting feeder 320, the continuous operation of the substrate blasting and the spraying is realized, the sealing of the spraying chamber 110 can be maintained in the continuous processing process, the substrate does not need to be taken out, the operation is simplified, and the fluctuation of the process quality of the cold spraying substrate is reduced.
Referring to fig. 6, specifically, the powder feeding assembly 300 further includes an air control component 330, the air control component 330 is respectively communicated with the spraying powder feeder 310 and the sand blasting feeder 320, the air control component 330 is provided with an air inlet, the air inlet is used for being communicated with an external air source, and the air control component 330 conveys the powder in the spraying powder feeder 310 and the sand blasting feeder 320 to the spray gun 210 through the external air source.
The pneumatic control component 330 is connected to an external air source to obtain a gas capable of being continuously conveyed, the gas is conveyed to the spraying powder feeder 310 or the sand blasting feeder 320, and the gas flow formed by the directionally conveyed gas drives the raw powder in the spraying powder feeder 310 or the sand blasting feeder 320 to flow into the spray gun 210, so as to perform sand blasting or cold spraying treatment on the base material. The sequence of the spraying and cold spraying of the spray gun 210 to the substrate can be realized only by controlling the sequence of the gas transmission to the spraying powder feeder 310 and the sand blasting feeder 320 through the pneumatic control component 330. Specifically, the external gas source includes nitrogen, helium, compressed air, and the like.
The pneumatic control component 330 may be respectively connected to the spraying powder feeder 310 and the blasting feeder 320 through two branch pipelines, and then control valves 331 are respectively disposed on the two branch pipelines, and the connection and disconnection of the two branch pipelines are respectively controlled through the two control valves 331. The pneumatic control component 330 may also be communicated with the control valve 331 through a main pipeline, the control valve 331 is further communicated with the spraying powder feeder 310 and the sand blasting feeder 320 through two branch pipelines, the main pipeline is controlled to be communicated with one branch pipeline through the control valve 331, and the main pipeline is controlled to be communicated with the other branch pipeline, so that the control of the step-by-step conveying of the spraying powder feeder 310 and the sand blasting feeder 320 can be realized.
With reference to fig. 6, further, in consideration of the different temperature requirements of the blasting raw material and the spraying raw material when the base material is subjected to the blasting and cold spraying processes, the pneumatic control component 330 can only control the conveying sequence of the powder raw materials in the spraying powder feeder 310 and the blasting powder feeder 320, and cannot change the temperature thereof, in view of this, in an embodiment, the cold spraying apparatus 10 further includes a heating component 500, the heating component 500 is disposed at the upper end of the spraying chamber 110, and the heating component 500 is respectively communicated with the pneumatic control component 330 and the spray gun 210, and is used for introducing the heated gas into the spray gun 210.
The pneumatic control component 330 is communicated with the heating assembly 500, the pneumatic control component 330 delivers gas to the heating assembly 500 through an independent pipeline, and the gas delivered to the heating assembly 500 is heated to increase the temperature. The heating assembly 500 is in turn in communication with the lance 210, i.e. the heating assembly 500 delivers heated gas into the lance 210. The spraying raw material in the spraying powder feeder 310 and the heated gas are simultaneously conveyed into the spray gun 210, and the heated gas can change the process temperature of the spray gun 210 during cold spraying, so that the temperature requirement of the spray gun 210 on cold spraying of the base material is finally met.
After the cold spray device 10 performs the sand blasting and cold spray processes, undeposited powder inevitably exists, and the undeposited powder is difficult to recycle due to problems of mixed pollution, deformation and the like, and the value after recycling is low.
Referring to fig. 3 and 4, in view of this, in an embodiment, an air inlet duct 120 and an air outlet duct 130 are further disposed in the device main body 100, the air inlet duct 120 is communicated with the upper end surface of the spraying chamber 110 and the outside, the air outlet duct 130 is communicated with the lower end surface of the spraying chamber 110 and the outside, communication holes communicated with the air outlet duct 130 are uniformly disposed on the lower end surface of the spraying chamber 110, a powder recovery box 133 and a fan 132 are disposed in the air outlet duct 130, an air outlet side of the fan 132 faces the outside, and the powder recovery box 133 is disposed on an air inlet side of the fan 132.
It can be understood that the air outlet channel 130 is communicated with the outside and is provided with an air outlet 131, because the air outlet side of the fan 132 faces the outside, namely, faces the air outlet 131, the spraying chamber 110 is communicated with the air outlet channel 130 through the communication hole, after the fan 132 is opened, the air in the spraying chamber 110 is discharged to the outside through the air outlet 131, and negative pressure is formed in the spraying chamber 110. The air inlet duct 120 is communicated with the outside and has an air inlet 121, and due to negative pressure formed in the spraying chamber 110, under the action of pressure difference, outside air enters the air inlet duct 120 through the air inlet 121 and then sequentially passes through the spraying chamber 110 and the air outlet duct 130, so that a directional air flow entering the spraying chamber 110 from the air inlet 121 is finally formed, and then the directional air flow is discharged from the spraying chamber 110 through the air outlet 131. The air outlet duct 130 is internally provided with a powder recovery box 133 positioned on one side of the air inlet side of the fan 132, under the driving of the directional airflow, the powder which is not deposited in the spraying cavity 110 enters the air outlet duct 130 through the communication hole, and flows through the powder recovery box 133 before being discharged out of the air outlet duct 130, so that the powder particles are finally collected by the powder recovery box 133, and the air flow is discharged to the outside. In particular, the powder recovery bin 133 includes multiple stages of powder cartridges arranged along the directional gas flow direction to ensure adequate recovery of the undeposited powder.
Through the setting of powder collection box 133, air inlet duct 120, exhaust duct 130 and fan 132, the operating procedure of carrying out the powder to spraying chamber 110 and cleaing away has been saved, and simultaneously, the powder granule of retrieving can add as the sandblast raw and other materials in sandblast feeder 320, reduce the technology cost of cold spray coating device 10 sandblast.
Referring to fig. 2 and 3, in an embodiment, the spraying chamber 110 is provided with a chamber port 111 communicating with an outer side surface of the apparatus main body 100, a chamber door 150 is installed at the chamber port 111, and the chamber door 150 is used for opening or closing the spraying chamber 110.
The cold spray apparatus 10 is required to maintain the relative sealing of the spray chamber 110 when performing the sand blasting and cold spray processes to avoid powder spillage and environmental contamination. Before the sprayed substrate is subjected to sand blasting, the chamber door 150 is opened, the sprayed substrate enters the spraying chamber 110 through the chamber opening 111, and is then fixedly placed on the clamp 230, and after the substrate is placed, the chamber door 150 is closed, so as to ensure the relative sealing of the spraying chamber 110.
Specifically, the chamber door 150 may be rotatably coupled to the apparatus body 100, and the opening and closing of the spray chamber 110 is achieved by rotating the chamber door 150. The chamber door 150 may also be slidably coupled to the apparatus body 100, and the opening and closing of the spray chamber 110 is accomplished by sliding the chamber door 150.
Further, an observation window 151 is arranged on the chamber door 150, and the observation window 151 is made of a transparent material. When the cold spray device 10 implements the sand blasting and cold spray processes, the processing condition of the substrate can be observed in real time through the observation window 151.
It is understood that the shape and size of the substrate to be sprayed are not fixed, the spray gun 210 is located above the substrate moving platform 220, that is, when the substrate is placed on the fixture 230, the spray gun 210 is located above the substrate, and when the cold spray device 10 performs sand blasting and cold spraying on the substrate, the area of the substrate located right below the spray gun 210 first performs the sand blasting and cold spray processes.
Referring to fig. 2 and 5, in one embodiment, the spray gun 210 is movable along the length of the spray chamber 110, the height of the spray gun 210 relative to the substrate moving platform 220 is adjustable, and the clamp 230 is movable horizontally relative to the spray gun 210.
The height of the spray gun 210 relative to the substrate moving platform 220 is adjustable to meet the requirement of adjusting the distance between the spray gun 210 and the substrate when the substrate is subjected to sand blasting and cold spraying. The spray gun 210 is movable along the length of the spray chamber 110, and when a substrate is placed along the length of the spray chamber, the position of the spray gun relative to the substrate along the length of the substrate can be changed by moving the spray gun along the length of the spray chamber. The clamp 230 can move horizontally relative to the spray gun 210, and under the condition that the spray gun 210 is kept still, the clamp 230 drives the substrate to move transversely or longitudinally, so that the position of the substrate in the area right below the spray gun 210 can be changed, and the requirement that the spray gun 210 carries out the sand blasting and cold spraying processes on the substrate to cover the whole end face of the substrate is met.
Specifically, the substrate moving stage 220 includes two first supports 221 disposed opposite to each other and a second support 222 connected to the two first supports 221, and the second support 222 is slidably connected to the first supports 221 along a direction in which the first supports 221 extend, that is, when the first supports 221 are disposed longitudinally, the second supports 222 can slide longitudinally relative to the first supports 221. The clamp 230 is slidably connected to the second bracket 222 along the extending direction of the second bracket 222, that is, when the second bracket 222 is transversely arranged, the clamp 230 can slide transversely relative to the second bracket 222. The substrate is moved longitudinally by the longitudinal sliding of the second support 222, and moved laterally by the lateral sliding of the clamp 230.
Similarly, the upper wall surface of the spraying chamber 110 is provided with a sliding groove arranged along the length direction of the spraying chamber 110, the spray gun 210 is slidably connected to the device main body 100 and located in the sliding groove, and the spray gun 210 can slide along the arrangement direction of the sliding groove. The spray gun 210 may also be connected to the apparatus body 100 by a bracket, and the bracket arranged along the length direction of the spray chamber 110 is located in the spray gun chamber 110 and connected to the apparatus body 100, and the spray gun 210 is slidably connected to the bracket, so that the spray gun 210 can move relative to the length direction of the spray chamber 110.
Further, when the substrate to be sprayed is a round shaft type shape, a transverse rotating shaft can be arranged to be connected to the clamp 230, the substrate is rotatably connected to the rotating shaft, when the spray gun 210 performs sand blasting and cold spraying, the substrate rotates around the rotating shaft in the circumferential direction and simultaneously cooperates with the movement of the spray gun 210 along the length direction of the spraying chamber 110, so that the sand blasting and cold spraying processes performed on the substrate by the spray gun 210 can cover the whole peripheral surface of the substrate.
When the cold spray device 10 performs the sand blasting and cold spray process flow on the substrate, the process parameters of the corresponding process flow, such as the raw material flow rate of sand blasting and cold spray, the moving direction and speed of the substrate, and the like, need to be satisfied. The flow rate of the raw materials for the sand blasting and the cold spraying can be adjusted by controlling the pressure of the gas inputted into the sand blasting feeder 320 and the spraying powder feeder 310, and the moving direction and speed of the substrate can be adjusted by controlling the moving direction and speed of the spray gun 210, the substrate moving stage 220, or the jig 230.
Referring to fig. 1 and 2, in an embodiment, in order to facilitate centralized setting and adjustment of corresponding process parameters, the cold spray apparatus 10 further includes a control assembly 400 disposed on the apparatus main body 100, the control assembly 400 includes a controller 410 and a control panel 420, the controller 410 is electrically connected to the spraying powder feeder 310, the blasting feeder 320, the spray gun 210, the substrate moving platform 220 and the clamp 230, the control panel 420 is electrically connected to the controller 410, and the control panel 420 is disposed on an outer side surface of the apparatus main body 100.
Before the cold spray apparatus 10 performs the processes of sand blasting and cold spray, the control panel 420 may set corresponding process parameters, and the controller 410 receives corresponding signals and then controls the spraying powder feeder 310, the sand blasting feeder 320, the spray gun 210, the substrate moving platform 220, and the clamp 230. Preferably, the control panel 420 and the observation window 151 are disposed on the same side, so as to facilitate the user to input and adjust the process parameters in time.
Further, when the cold spray device 10 includes the pneumatic control component 330 and the heating assembly 500, the controller 410 may be electrically connected to the pneumatic control component 330 and the heating assembly 500, the start and stop of the sand blasting and cold spray processes may be controlled by controlling the opening and closing of the control valve 331, the flow rate and output pressure of the sand blasting and cold spray raw materials may be adjusted by controlling the opening of the control valve 331, and the sand blasting and cold spray temperature may be adjusted by controlling the heating function of the heating assembly 500.
Referring to fig. 2, in an embodiment, a sound deadening wall layer 140 is disposed on an inner wall surface of the spray chamber 110. The sound deadening wall layer 140 can weaken noise generated when the cold spray apparatus 10 performs a sand blast and cold spray process, improve a working environment of a user, and protect personal health of the user.
The present invention also proposes a cold spray machining method applied to the cold spray device 10 as described above, the cold spray machining method including the steps of:
s100, respectively adding cold spraying raw materials and sand blasting raw materials into the spraying powder feeder 310 and the sand blasting feeder 320;
s200, fixing the sprayed base material on a clamp 230;
s300, performing a sand blasting process flow on the substrate in the spraying chamber 110;
s400, performing a cold spraying process flow on the substrate in the spraying chamber 110;
and S500, obtaining a cold spraying sample.
By controlling the spraying powder feeder 310 and the blasting feeder 320, the continuous blasting and spraying of the base material are realized, the sealing of the spraying chamber 110 can be maintained in the continuous treatment process, the base material does not need to be taken out, the operation is simplified, and the fluctuation of the process quality of the cold spraying base material is reduced.
In an embodiment, an air inlet duct 120 and an air outlet duct 130 are further disposed in the device main body 100, the air inlet duct 120 is communicated with the upper end surface of the spraying chamber 110 and the outside, the air outlet duct 130 is communicated with the lower end surface of the spraying chamber 110 and the outside, communication holes communicated with the air outlet duct 130 are uniformly disposed on the lower end surface of the spraying chamber 110, a powder recovery box 133 and a fan 132 are sequentially disposed in the air outlet duct 130 along the flowing direction of the air flow, and the method further includes the following steps after the step of performing the sand blasting process on the substrate in the spraying chamber 110 or the step of performing the cold spraying process on the substrate in the spraying chamber 110:
s410, starting the fan 132, and recycling the non-deposited powder through the powder recycling box 133;
wherein the powder recovered by the powder recovery box 133 may be added to the blasting feeder 320 as the blasting raw material in the steps of adding the cold spraying raw material and the blasting raw material to the spraying powder feeder 310 and the blasting feeder 320, respectively.
Through the setting of powder collection box 133, air inlet duct 120, exhaust duct 130 and fan 132, the operating procedure of carrying out the powder to spraying chamber 110 and cleaing away has been saved, and simultaneously, the powder granule of retrieving can add as the sandblast raw and other materials in sandblast feeder 320, reduce the technology cost of cold spray coating device 10 sandblast.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (11)
1. A cold spray apparatus, comprising:
the device comprises a device main body, wherein a spraying cavity is arranged in the device main body;
the spraying assembly is arranged in the spraying cavity and comprises a spraying gun and a substrate moving platform, the spraying gun is arranged above the substrate moving platform, and a clamp for placing a substrate is arranged on the substrate moving platform;
and the powder feeding assembly is arranged on the device main body and comprises a spraying powder feeder and a sand blasting feeder, and the spraying powder feeder and the sand blasting feeder are independently communicated with the spray gun.
2. The cold spraying device of claim 1, wherein the powder feeding assembly further comprises a pneumatic control component, the pneumatic control component is respectively communicated with the spraying powder feeder and the sand blasting feeder, the pneumatic control component is provided with an air inlet, the air inlet is used for being communicated with an external air source, and the pneumatic control component conveys powder in the spraying powder feeder and the sand blasting feeder into the spray gun through the external air source.
3. The cold spraying device of claim 2, further comprising a heating assembly disposed at an upper end of the spraying chamber, wherein the heating assembly is communicated with the pneumatic control component and the spray gun, respectively, for introducing heated gas into the spray gun.
4. The cold spray apparatus according to claim 1, wherein an air inlet duct and an air outlet duct are further provided in the apparatus main body, the air inlet duct is communicated with an upper end surface of the spray chamber and the outside, the air outlet duct is communicated with a lower end surface of the spray chamber and the outside, the lower end surface of the spray chamber is uniformly provided with communication holes communicated with the air outlet duct, a powder recovery box and a fan are provided in the air outlet duct, an air outlet side of the fan faces the outside, and the powder recovery box is provided at an air inlet side of the fan.
5. The cold spray apparatus of claim 1, wherein said spray gun is movable along a length of said spray chamber, and wherein a height of said spray gun relative to said substrate moving platform is adjustable, and wherein said clamp is horizontally movable relative to said spray gun.
6. The cold spray apparatus according to any one of claims 1 to 5, further comprising a control unit provided on the apparatus main body, the control unit comprising a controller and a control panel, the controller being electrically connected to the spray powder feeder, the blast feeder, the spray gun, the substrate moving table and the jig, the control panel being electrically connected to the controller, the control panel being provided on an outer side surface of the apparatus main body.
7. The cold spray apparatus according to any one of claims 1 to 5, wherein a sound-deadening wall layer is provided on an inner wall surface of said spray chamber.
8. The cold spray apparatus of any one of claims 1 to 5, wherein said spray chamber is provided with a chamber port communicating with an outer side surface of said apparatus main body, said chamber port being provided with a door for opening or closing said spray chamber.
9. The cold spray apparatus of claim 8, wherein said chamber door is provided with an observation window, and said observation window is made of a transparent material.
10. A cold spray machining method using the cold spray apparatus according to claim 1, characterized in that the cold spray machining method comprises:
respectively adding cold spraying raw materials and sand blasting raw materials into a spraying powder feeder and a sand blasting feeder;
fixing the sprayed base material on a clamp;
performing a sandblasting process on the substrate within the spray chamber;
performing a cold spray process on the substrate in the spray chamber;
a cold spray sample was obtained.
11. The cold spray processing method according to claim 10, wherein an air inlet duct and an air outlet duct are further provided in the device main body, the air inlet duct communicates with an upper end surface of the spray chamber and the outside, the air outlet duct communicates with a lower end surface of the spray chamber and the outside, the lower end surface of the spray chamber is uniformly provided with communication holes communicating with the air outlet duct, a powder recovery box and a blower are sequentially provided in the air outlet duct along a flow direction of an air flow, and the step of performing the sand blasting process flow on the substrate in the spray chamber or the step of performing the cold spray process flow on the substrate in the spray chamber further comprises the steps of:
starting a fan, and recovering non-deposited powder through a powder recovery box;
wherein the powder recovered by the powder recovery box may be added to the blasting feeder as a blasting raw material in the steps of adding the cold spraying raw material and the blasting raw material to the spraying powder feeder and the blasting feeder, respectively.
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| CN202211276838.4A CN115350845A (en) | 2022-10-19 | 2022-10-19 | Cold spraying device and cold spraying processing method thereof |
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| CN202211276838.4A CN115350845A (en) | 2022-10-19 | 2022-10-19 | Cold spraying device and cold spraying processing method thereof |
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Application publication date: 20221118 |
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