CN115121391A - Powder spraying device and method for electric arc additive manufacturing - Google Patents
Powder spraying device and method for electric arc additive manufacturing Download PDFInfo
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- CN115121391A CN115121391A CN202210817942.3A CN202210817942A CN115121391A CN 115121391 A CN115121391 A CN 115121391A CN 202210817942 A CN202210817942 A CN 202210817942A CN 115121391 A CN115121391 A CN 115121391A
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- additive manufacturing
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- 239000000843 powder Substances 0.000 title claims abstract description 329
- 238000005507 spraying Methods 0.000 title claims abstract description 173
- 239000000654 additive Substances 0.000 title claims abstract description 35
- 230000000996 additive effect Effects 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 238000010891 electric arc Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims description 35
- 239000007921 spray Substances 0.000 claims description 17
- 238000005243 fluidization Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 7
- 230000001914 calming effect Effects 0.000 claims description 5
- 238000002474 experimental method Methods 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 230000008033 biological extinction Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 22
- 239000013543 active substance Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
-
- 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
- B05B15/20—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising
- B05B15/25—Arrangements for agitating the material to be sprayed, e.g. for stirring, mixing or homogenising using moving elements, e.g. rotating blades
-
- 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 relates to the field of electric arc additive manufacturing, and discloses a powder spraying device and a method for electric arc additive manufacturing. The invention solves the problems of poor powder spraying stability, incapability of accurately spraying powder in a quantitative mode and poor powder spraying effect of the powder spraying device in the prior art.
Description
Technical Field
The invention relates to the field of arc additive manufacturing, in particular to a powder spraying device and a powder spraying method for arc additive manufacturing.
Background
The spraying active agent for electric arc additive manufacturing is characterized in that a carrier gas is utilized to spray a powdery active agent on the surface of a weld bead, and the penetration is increased through the contraction effect on an electric arc, so that the weld joint structure is improved, and the comprehensive mechanical property of a formed piece is improved. Compared with manual coating of powder active agents, the automatic spraying device can achieve an automatic spraying function and can perform quantitative and accurate spraying. The powder spraying device is one of core equipment of an electric arc additive manufacturing powder spraying process, and the powder airflow state generated by the powder spraying device is directly related to the powder spraying effect, so that the experimental result is influenced.
The existing powder spraying device is generally suitable for high-pressure distributed powder spraying, has poor powder spraying stability, can not spray powder quantitatively and accurately, is not suitable for the working condition of an electric arc additive manufacturing powder spraying process, and has poor powder spraying effect. The existing powder spraying method is difficult to control at the beginning and the end of powder spraying, has poor powder airflow stability and is difficult to meet the process requirements of electric arc additive manufacturing spraying active agents.
Disclosure of Invention
The invention provides a powder spraying device and method for electric arc additive manufacturing, and aims to solve the problems that in the prior art, the powder spraying device is poor in powder spraying stability, cannot spray powder quantitatively and accurately, is poor in powder spraying effect and is not suitable for the working condition of electric arc additive manufacturing powder spraying.
The invention adopts the specific scheme that: a powder spraying device for electric arc additive manufacturing comprises a pressurized gas source, the device comprises a powder spraying tank, the lower part of the powder spraying tank is a lower air chamber, the upper part of the powder spraying tank is separated from the lower air chamber through a fluidization plate, the bottom of the lower air chamber is connected with a powder airflow ejector through a pipeline, the pipeline is provided with a powder stop valve and a powder regulating valve, the powder air flow ejector is connected with a pressure gauge, the powder airflow ejector is connected with a powder calming chamber through a powder spraying pipe, the powder calming chamber is connected with a nozzle, the pressurized gas source is connected with a powder spraying tank through a pressure balancing pipe, the pressure-increasing air source is connected with the powder air flow ejector through an ejection pipe, the pressure gauge, the powder cut-off valve and the powder adjusting valve are respectively connected with the control system, the pressure gauge transmits signals to the control system, and the control system controls the opening of the powder stop valve and the powder regulating valve.
And a metal wire is arranged in the nozzle.
The number of the nozzles is 2.
The powder spraying tank is connected with the powder bin through a powder inlet pipe.
And a variable frequency stirrer is arranged in the powder spraying tank, the variable frequency stirrer is connected with a motor, and the motor is connected with a control system.
And a powder flowmeter is arranged in the powder spraying pipe and is connected with a control system.
The propeller rotating speed of the variable frequency stirrer is not higher than 300 revolutions per minute.
In another aspect, the present invention provides a powder spraying method for arc additive manufacturing, the method comprising the steps of:
(1) and feeding materials, wherein the powder stop valve and the powder regulating valve are in a closed state, closing the pressurization air source, starting to feed the powder into the powder spraying tank, stopping feeding the powder when the weight of the powder reaches a preset value, opening the pressurization air source, and maintaining the air pressure in the powder spraying tank at the preset value.
(2) Before powder spraying operation, debugging is carried out, a powder regulating valve is opened to enable the powder regulating valve to be at the minimum opening, the gas flow passing through a fluidization plate is small, a powder cut-off valve is opened, and whether a powder spraying mechanism works normally is judged;
(3) if the powder spraying mechanism continuously and stably sprays powder, the opening of the powder regulating valve is slowly increased so as to increase the powder spraying amount, and when the set powder spraying flow is reached, the opening of the powder regulating valve is kept unchanged;
(4) if the powder spraying mechanism discharges powder abnormally, the opening of the pressure balance pipe is increased, the air pressure in the powder spraying tank is increased, the low-flow mode is adjusted after purging is carried out for 6 seconds, then the powder regulating valve is adjusted to the secondary powder discharging opening, whether the powder spraying mechanism discharges powder normally is observed again, and the operation is repeated until the powder spraying mechanism continuously and stably sprays powder;
(5) after the powder spraying mechanism continuously and stably sprays powder, the powder spraying operation is carried out, and the spraying mode and the spraying direction are timely adjusted according to the set additive manufacturing experimental procedure to spray the powder;
(6) when powder is stopped, after the powder spraying process is finished, the powder spraying amount is adjusted to be matched with the arc quenching process.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a powder spraying device for electric arc additive manufacturing, which comprises a pressurized gas source, wherein the device comprises a powder spraying tank, the lower part of the powder spraying tank is a lower gas chamber, the upper part of the powder spraying tank is separated from the lower gas chamber through a fluidization plate, the bottom of the lower gas chamber is connected with a powder flow ejector through a pipeline, a powder stop valve and a powder adjusting valve are arranged on the pipeline, the powder flow ejector is connected with a pressure gauge, the powder flow ejector is connected with a powder quiet chamber through a powder spraying pipe, the powder quiet chamber is connected with a nozzle, the pressurized gas source is connected with the powder spraying tank through a pressure balancing pipe, the pressurized gas source is connected with the powder flow ejector through the powder spraying pipe, the pressure gauge, the powder stop valve and the powder adjusting valve are respectively connected with a control system, the pressure gauge transmits signals into the control system, the control system controls the opening of the powder stop valve and the powder adjusting valve, and solves the problem of poor powder spraying stability of the powder spraying device in the prior art, the powder spraying device has the advantages that powder can not be quantitatively and accurately sprayed, the powder spraying effect is poor, the problem that the powder spraying working condition of electric arc additive manufacturing is not suitable is solved, the powder sprayed by the powder spraying device is uniform and stable, the fluctuation of the powder spraying flow is avoided, the powder spraying effect is good, the powder spraying device is suitable for quantitatively and accurately spraying the powder for electric arc additive manufacturing, and the working condition of an active agent spraying process for electric arc additive manufacturing is suitable.
The powder flow meter is arranged in the powder spraying pipe, so that the powder spraying amount of the nozzle can be known in real time, the powder is conveniently fed back to a computer control system, and the flow can be adjusted in time according to the speed of the stirrer and the size of the spraying air. The variable-frequency stirrer is arranged in the powder spraying tank, so that the flowability of the powdery active agent can be increased, and the uniform mixing of the powder and the airflow is promoted.
The pressure gauge, the motor, the powder air flow ejector pressure gauge, the powder flowmeter, the pressure balance pipe, the jet pipe switch, the powder cut-off valve and the powder regulating valve are all connected with the computer control system, automatic control is realized through the computer control system, and the automation degree and the precision of the device are improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
wherein the reference numerals are respectively:
1. powder spraying tank, 2, fluidization plate, 3, lower air chamber, 4, powder cut-off valve, 5, powder regulating valve, 6, powder air flow ejector, 7, powder calming chamber, 8, switch, 9, metal wire, 10, nozzle, 11, powder flowmeter, 12, pressure gauge, 13, spray flow pipe, 14, pressurized air source, 15, pressure measuring meter, 16, pressure balancing pipe, 17, motor, 18, control system, 19, powder storage bin, 20, powder spraying pipe, 21, frequency conversion stirrer.
Detailed Description
In order that the objects, aspects and advantages of the invention will become more apparent, the invention will be described by way of example only, and with reference to the accompanying drawings. It is to be understood that this description is made only by way of example and not as a limitation on the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The invention provides a powder spraying device for electric arc additive manufacturing, which comprises a pressurized gas source 14 and is characterized by comprising a powder spraying tank 1, wherein the lower part of the powder spraying tank 1 is a lower gas chamber 3, the upper part of the powder spraying tank 1 is separated from the lower gas chamber 3 through a fluidization plate 2, the bottom of the lower gas chamber 3 is connected with a powder gas flow ejector 6 through a pipeline, the pipeline is provided with a powder stop valve 4 and a powder adjusting valve 5, the powder gas flow ejector 6 is connected with a pressure gauge 12, the powder gas flow ejector 6 is connected with a powder quiet chamber 7 through a powder spraying pipe 20, the powder quiet chamber 7 is connected with a nozzle 10, the pressurized gas source 14 is connected with the powder spraying tank 1 through a pressure balance pipe 16, the pressurized gas source 14 is connected with the powder gas flow ejector 6 through a powder spraying pipe 13, the pressure gauge 12, the stop valve 4 and the powder adjusting valve 5 are respectively connected with a control system 18, the pressure gauge 12 transmits signals to a control system 18, and the control system 18 controls the opening of the powder cutting valve 4 and the powder adjusting valve 5.
The pressurized air source is respectively connected with a jet flow pipeline through a pressure balance pipeline through a main compressed air pipeline, the outlet of the pressure balance pipeline is connected with the powder spraying tank, the outlet of the jet flow pipeline is connected with the powder flow ejector, and the upper part of the powder spraying tank is separated from the lower air chamber through a fluidization plate to keep pressure balance. In the invention, the inlet of the fluidization section at the bottom end of the lower air chamber is highly matched with the dense phase region for fluidization of active agent powder particles, and the feeding speed of the powder regulating valve is controlled by a computer control system according to a signal fed back by the solid flow meter, so that the uniformity and the accuracy of powder spraying are ensured.
A wire 9 is arranged in the nozzle 10. The number of the nozzles 10 is 2. The powder spraying tank 1 is connected with a powder storage bin 19 through a powder inlet pipe, the nozzle is a hose, and a metal wire is used for adjusting the direction of the nozzle.
A variable frequency stirrer 21 is arranged in the powder spraying tank 1, the variable frequency stirrer 21 is connected with a motor 17, and the motor 17 is connected with a control system 18. A powder flowmeter 11 is arranged in the powder spraying pipe 20, and the powder flowmeter 11 is connected with a control system 18. The variable frequency stirrer is arranged in the powder spraying tank, so that the flowability of the powdery active agent can be increased, and the uniform mixing of the powder and the airflow is promoted. And the computer control system is connected with the motor, so that automatic control is realized, and the automation degree and precision of the device are improved.
The invention provides a powder spraying method for electric arc additive manufacturing, which comprises the following steps: when feeding, the powder stop valve and the powder regulating valve are in a closed state, the pressurization air source is closed, the powder starts to enter the powder spraying tank, the feeding is stopped when the weight of the powder reaches a preset value, the pressurization air source is opened, and the air pressure in the powder spraying tank is maintained at the preset value. Before powder spraying operation, debugging is carried out, a powder regulating valve is opened to enable the powder regulating valve to be at the minimum opening, the gas flow passing through a fluidization plate is small, a powder cut-off valve is opened, and whether a powder spraying mechanism works normally is judged; if the powder spraying mechanism continuously and stably sprays powder, the opening of the powder regulating valve is slowly increased so as to increase the powder spraying amount, and when the set powder spraying flow is reached, the opening of the powder regulating valve is kept unchanged; if the powder discharging mechanism discharges abnormal powder, the opening of the pressure balance pipe is increased, the air pressure in the powder spraying tank is increased, the low-flow mode is adjusted after purging is carried out for 6 seconds, then the powder adjusting valve is adjusted to the secondary powder discharging opening, whether the powder spraying mechanism discharges powder normally is observed again, and the operation is repeated until the powder spraying mechanism continuously and stably sprays powder; after the powder spraying mechanism continuously and stably sprays powder, the powder spraying operation is carried out, and the spraying mode and the spraying direction are timely adjusted according to the set additive manufacturing experimental procedure to spray the powder; when powder is stopped, after the powder spraying process is finished, the powder spraying amount is adjusted to be matched with the arc quenching process. The powder spraying method provided by the invention has the advantages that the traditional manual powder coating is changed into automatic powder spraying, the efficiency is improved, the automatic control of the powder spraying amount can be realized, the effect of accurate powder spraying is achieved, and the powder spraying method is safer and more reliable than manual operation.
The concrete operation of adjusting the powder spraying amount and the arc extinguishing process is that the opening of the powder regulating valve is slowly reduced until the powder regulating valve is closed, and then the powder cut-off valve is closed; after the powder stop valve and the powder regulating valve are completely closed, the rotating speed of the variable-frequency stirrer is increased, and the remaining powder is stirred strongly.
When the powder spraying tank is used for feeding, the powder stop valve and the powder regulating valve are in a closed state, the pressurization gas source is closed, the variable frequency stirrer is firstly started, then the powder inlet pipe switch is opened, the rotating speed of a propeller of the variable frequency stirrer is not higher than 300 revolutions per minute, and the powder begins to enter the powder spraying tank. And stopping feeding when the weight of the powder reaches a preset value, opening a pressurized air source, and maintaining the air pressure in the powder spraying tank at the preset value. Before powder spraying operation, debugging is carried out firstly, the powder regulating valve is opened, the gas flow passing through the fluidization plate is smaller, then the powder cut-off valve is opened, whether the powder spraying mechanism works normally or not is observed, if the powder spraying mechanism can continuously and stably spray powder, the opening of the powder regulating valve is slowly increased, so that the powder spraying amount is increased, and when the set powder spraying flow is reached, the opening of the powder regulating valve is maintained unchanged; and if the powder discharging mechanism discharges abnormal powder, increasing the opening of the pressure balance pipeline, increasing the air pressure in the powder spraying tank, returning to the low-flow mode after purging for 6 seconds, adjusting the powder regulating valve to the secondary powder discharging opening, observing whether the powder discharging mechanism discharges the powder normally again, and repeating the operation. During powder spraying operation, because the left side and the right side of the welding gun are respectively provided with the nozzle, the active agent can be sprayed before metal deposition, the spraying process and the deposition process can be carried out simultaneously, the spraying mode and the spraying direction can be timely adjusted according to the set additive manufacturing experimental procedures, the time is saved, and the set procedures of metal deposition are prevented from being influenced. When powder is stopped and the powder spraying process is finished, because the arc extinguishing process of the electric arc additive manufacturing system is set as tail point delay, the powder spraying process is different from the starting powder spraying process, and the powder spraying amount needs to be matched with the arc extinguishing process. Firstly, slowly reducing the opening of a powder regulating valve until the opening is closed, and then closing a powder cut-off valve; after the powder cut-off valve and the powder regulating valve are completely closed, the rotation speed of the variable-frequency stirrer is increased, the remaining powder is stirred strongly, and the phenomenon of center through caused by the gradient of a material pile formed after powder spraying is avoided.
The drawings and the explanation are only for one embodiment of the present invention, but the specific protection scope of the present invention is not limited to the above explanation, and any simple replacement or change within the technical idea of the present invention and the technical solution according to the present invention should be within the protection scope of the present invention.
Claims (9)
1. The powder spraying device for electric arc additive manufacturing comprises a pressurized gas source (14) and is characterized by comprising a powder spraying tank (1), wherein a lower air chamber (3) is arranged at the lower part of the powder spraying tank (1), the upper part of the powder spraying tank (1) is separated from the lower air chamber (3) through a fluidization plate (2), the bottom of the lower air chamber (3) is connected with a powder gas flow ejector (6) through a pipeline, a powder stop valve (4) and a powder adjusting valve (5) are arranged on the pipeline, the powder gas flow ejector (6) is connected with a pressure gauge (12), the powder gas flow ejector (6) is connected with a powder calming chamber (7) through a powder spraying pipe (20), the powder calming chamber (7) is connected with a nozzle (10), the pressurized gas source (14) is connected with the powder spraying tank (1) through a pressure balance pipe (16), and the pressurized gas source (14) is connected with the powder gas flow ejector (6) through a spraying pipe (13), the pressure gauge (12), the powder cut-off valve (4) and the powder adjusting valve (5) are respectively connected with the control system (18), the pressure gauge (12) transmits signals to the control system (18), and the control system (18) controls the opening degree of the powder cut-off valve (4) and the opening degree of the powder adjusting valve (5).
2. A powder spraying device for arc additive manufacturing according to claim 1, characterized in that a wire (9) is arranged inside the nozzle (10).
3. Powder spraying device for electric arc additive manufacturing according to claim 2, characterized in that the number of nozzles (10) is 2.
4. Powder spraying device for additive manufacturing of electric arcs according to claim 3, characterised in that the powder spraying tank (1) is connected with a powder silo (19) through a powder inlet pipe.
5. Powder spraying device for electric arc additive manufacturing according to claim 4, characterized in that a variable frequency stirrer (21) is arranged in the powder spraying tank (1), the variable frequency stirrer (21) is connected with a motor (17), and the motor (17) is connected with a control system (18).
6. Powder spraying device for electric arc additive manufacturing according to claim 5, characterized in that the propeller rotation speed of the variable frequency stirrer (21) is not higher than 300 rpm.
7. Powder spraying device for arc additive manufacturing according to claim 6, characterized in that a powder flow meter (11) is arranged in the powder spraying pipe (20), and the powder flow meter (11) is connected with a control system (18).
8. A powder spraying method for electric arc additive manufacturing, which is implemented on the basis of the powder spraying device for electric arc additive manufacturing of any one of claims 1-7, and comprises the following steps:
(1) when feeding, the powder cut-off valve and the powder regulating valve are in a closed state, the pressurization gas source is closed, powder begins to enter the powder spraying tank, feeding is stopped when the weight of the powder reaches a preset value, the pressurization gas source is opened, and the air pressure in the powder spraying tank is maintained at the preset value;
(2) before powder spraying operation, debugging is carried out, a powder regulating valve is opened to enable the powder regulating valve to be at the minimum opening, the gas flow passing through a fluidization plate is small, a powder cut-off valve is opened, and whether a powder spraying mechanism works normally is judged;
(3) if the powder spraying mechanism continuously and stably sprays powder, the opening of the powder regulating valve is slowly increased so as to increase the powder spraying amount, and when the set powder spraying flow is reached, the opening of the powder regulating valve is kept unchanged;
(4) if the powder spraying mechanism discharges powder abnormally, the opening of the pressure balance pipe is increased, the air pressure in the powder spraying tank is increased, the low-flow mode is adjusted after purging is carried out for 6 seconds, then the powder regulating valve is adjusted to the secondary powder discharging opening, whether the powder spraying mechanism discharges powder normally is observed again, and the operation is repeated until the powder spraying mechanism continuously and stably sprays powder;
(5) after the powder spraying mechanism continuously and stably sprays powder, the powder spraying operation is carried out, and the spraying mode and the spraying direction are timely adjusted according to the set additive manufacturing experimental procedure to spray the powder;
(6) when powder is stopped, after the powder spraying process is finished, the powder spraying amount is adjusted to be matched with the arc quenching process.
9. The powder spraying method for arc additive manufacturing according to claim 8, wherein the specific operation of adjusting the powder spraying amount in the step (6) and the arc extinction process is to slowly reduce the opening of the powder regulating valve until the powder regulating valve is closed and then close the powder cut-off valve; after the powder stop valve and the powder regulating valve are completely closed, the rotating speed of the variable-frequency stirrer is increased, and the remaining powder is stirred strongly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210817942.3A CN115121391B (en) | 2022-07-12 | 2022-07-12 | Powder spraying device and method for arc additive manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210817942.3A CN115121391B (en) | 2022-07-12 | 2022-07-12 | Powder spraying device and method for arc additive manufacturing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115121391A true CN115121391A (en) | 2022-09-30 |
| CN115121391B CN115121391B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210817942.3A Active CN115121391B (en) | 2022-07-12 | 2022-07-12 | Powder spraying device and method for arc additive manufacturing |
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| Country | Link |
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| CN (1) | CN115121391B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5906858A (en) * | 1995-09-18 | 1999-05-25 | Elpatronic Ag | Method and apparatus for conveying a pulverulent material by means of an injector |
| CN101176868A (en) * | 2007-12-01 | 2008-05-14 | 黄锐龙 | Soldering joint powder spraying technique and equipment thereof |
| WO2012115061A1 (en) * | 2011-02-21 | 2012-08-30 | ダイヤモンドエンジニアリング株式会社 | Powder supply apparatus and powder supply method |
| CN111151757A (en) * | 2020-02-21 | 2020-05-15 | 上海理工大学 | Composite electron beam additive manufacturing equipment and process |
| CN111705179A (en) * | 2020-06-02 | 2020-09-25 | 北京荣诚京冶科技有限公司 | Powder spraying device, powder spraying device for converter bottom blowing powder spraying and powder spraying method |
-
2022
- 2022-07-12 CN CN202210817942.3A patent/CN115121391B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5906858A (en) * | 1995-09-18 | 1999-05-25 | Elpatronic Ag | Method and apparatus for conveying a pulverulent material by means of an injector |
| CN101176868A (en) * | 2007-12-01 | 2008-05-14 | 黄锐龙 | Soldering joint powder spraying technique and equipment thereof |
| WO2012115061A1 (en) * | 2011-02-21 | 2012-08-30 | ダイヤモンドエンジニアリング株式会社 | Powder supply apparatus and powder supply method |
| CN111151757A (en) * | 2020-02-21 | 2020-05-15 | 上海理工大学 | Composite electron beam additive manufacturing equipment and process |
| CN111705179A (en) * | 2020-06-02 | 2020-09-25 | 北京荣诚京冶科技有限公司 | Powder spraying device, powder spraying device for converter bottom blowing powder spraying and powder spraying method |
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| Publication number | Publication date |
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| CN115121391B (en) | 2024-01-26 |
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