CN211939055U - Electromagnetic vibration metal liquid atomizing device - Google Patents
Electromagnetic vibration metal liquid atomizing device Download PDFInfo
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- CN211939055U CN211939055U CN202020567631.2U CN202020567631U CN211939055U CN 211939055 U CN211939055 U CN 211939055U CN 202020567631 U CN202020567631 U CN 202020567631U CN 211939055 U CN211939055 U CN 211939055U
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Abstract
The utility model discloses an electromagnetic vibration metal liquid atomization device, which comprises an electromagnetic vibrator connected with a control power supply and an atomization chamber arranged on the electromagnetic vibrator, wherein a sample platform for placing a metal sample is arranged at the bottom of a central shaft in the atomization chamber, a laser head is arranged right above the sample platform, and the laser head is arranged outside the atomization chamber; a transparent window is arranged on the upper end surface of the atomizing chamber, and the transparent window, the sample table and the laser head are on the same vertical line; an air inlet is formed in the side face of the atomizing chamber, and the setting height of the air inlet is higher than that of the sample table. The utility model adopts the above structure electromagnetic vibration metal liquid atomizing device, cooperation laser instrument uses, can realize metal liquid atomizing, preparation metal powder, simple structure, and convenient operation is fit for various metal powder's processing.
Description
Technical Field
The utility model belongs to the technical field of the metal powder preparation technique and specifically relates to an electromagnetic vibration metal liquid atomizing device is related to.
Background
The spherical metal powder material has wide application in the industrial fields of powder metallurgy, metal surface engineering and the like. In recent years, metal 3D printing technology has been rapidly developed, and the demand for metal powder raw materials is more urgent than ever before, and higher requirements are also put on the performance of metal powder. The particle size and particle size distribution, sphericity, chemical purity, etc. of the metal powder are critical to the quality of the 3D printed metal. The metal powder becomes the bottleneck of the development of the current metal 3D printing technology, and the development of a novel, high-quality and economic spherical metal powder preparation technology is urgent.
The spherical metal powder is prepared through melting metal into liquid, dispersing the liquid metal into fine liquid drops, shrinking the fine liquid drops into spherical shape under the action of surface tension, and cooling and solidifying the spherical liquid drops into solid spherical metal powder grains. At present, the main preparation methods of the spherical metal powder include an air atomization method (a preparation method of high-purity 3D printing additive manufacturing metal alloy powder CN106881464A, a metal powder preparation device and method CN102689015A, an air atomization device for preparing metal and alloy powder and a powder preparation method CN104550987A), a water atomization method (an injection device CN1857832A for producing water atomization full-spherical metal powder), an ultrasonic atomization method (an ultrasonic atomization preparation method of spherical metal powder and device CN1422718A), centrifugal disk atomization (apparatus for producing metal powder by disk atomization CN 1036918A), rotary electrode atomization (atmosphere protection system for producing metal powder by rotary electrode and protection method CN103071804A), and combination method (production method of spherical low-melting metal powder CN101985177A, method and apparatus for producing fine metal powder CN1072622A, an air atomization apparatus for producing 3D printing metal powder CN105618773A) and so on.
Gas atomization is currently the major production process for metal powders. However, the disturbance of the gas flow has statistical characteristics, so the metal powder produced by the gas atomization method has wider particle size distribution and poorer sphericity, and in addition, the production equipment is huge and the production cost is high. The use of water instead of inert gas to atomize metals can improve atomization efficiency and reduce production cost, but is not suitable for producing nonferrous metals with high chemical activity. Ultrasonic atomization and centrifugal disc atomization are mechanical contact type atomization methods, which are limited by the material of an ultrasonic head or a centrifugal disc, are generally used for manufacturing low-melting-point metal powder, and increase the risk of chemical pollution to the metal powder. The rotating electrode atomization is a method which heats the end of a rod-shaped metal by electric arc, and the metal rod rotates at high speed at the same time, so that the liquid metal is broken into fine liquid drops by centrifugal force, and then the fine liquid drops are solidified to form spherical metal powder. The particle size of the metal powder atomized by the rotary electrode is adjusted by parameters such as electric arc energy, metal electrode rotating speed and the like, the obtained metal powder has narrow particle size distribution range and high sphericity, is suitable for preparing various metal powders, and is the most important method of spherical metal powder for 3D printing at present. The rotary electrode atomization method adopts electric arcs (or plasma arcs) as heating sources, the electric arcs heat metal and also heat tungsten electrodes, carbon brushes, copper electrodes and other electric connecting pieces, and therefore the problems of chemical pollution, brush abrasion and the like are caused. However, the technical disadvantages of using metal bar stock still remain, and these disadvantages are manifested in: 1) the diameter of the metal bar is small, and the high electrode rotating speed, such as 9000-; 2) the metal bar stock is automatically fed by adopting a material pushing motor, the bar stock needs to pass through a feeding hole on the wall of the atomizing chamber, the clearance fit requirement between the high-speed rotating electrode and the wall of the atomizing chamber is high, the sealing performance of the vacuum chamber is poor, and the chemical purity of metal powder is not facilitated; 3) the use of high-power laser and the requirement of the processing precision can increase the manufacturing cost of powder-making equipment, and are not favorable for the economy of the cost of the spherical metal powder.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electromagnetic vibration metal liquid atomizing device, cooperation laser instrument uses, can realize metal liquid atomizing, preparation metal powder, simple structure, and convenient operation is fit for various metal powder's processing.
In order to achieve the purpose, the utility model provides an electromagnetic vibration metal liquid atomization device, which comprises an electromagnetic vibrator connected with a control power supply and an atomization chamber arranged on the electromagnetic vibrator, wherein a sample platform for placing a metal sample is arranged at the bottom of a central shaft in the atomization chamber, a laser head is arranged right above the sample platform, and the laser head is arranged outside the atomization chamber;
a transparent window is arranged on the upper end surface of the atomizing chamber, and the transparent window, the sample table and the laser head are on the same vertical line;
an air inlet is formed in the side face of the atomizing chamber, and the setting height of the air inlet is higher than that of the sample table.
Preferably, the size of the transparent window is larger than the size of the sample stage.
Preferably, the vibration frequency of the electromagnetic vibrator is 1-2000Hz, and the amplitude is 0-5 mm.
Preferably, the atomization chamber is provided in an airtight structure.
Therefore, the utility model adopts the above structure electromagnetic vibration metal liquid atomizing device, cooperation laser instrument uses, can realize metal liquid atomizing, preparation metal powder, simple structure, and convenient operation is fit for various metal powder's processing.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the electromagnetic vibration metallic liquid atomizer of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the accompanying drawings and examples.
Examples
Fig. 1 is a schematic structural diagram of an embodiment of the electromagnetic vibration metal liquid atomizing device of the present invention, as shown in the drawing, the present invention provides an electromagnetic vibration metal liquid atomizing device, which includes an electromagnetic vibrator 1 connected to a control power supply and an atomizing chamber 2 disposed on the electromagnetic vibrator 1, a sample table 4 for placing a metal sample 3 is disposed at the bottom of a central shaft in the atomizing chamber 2, a laser head 5 is disposed directly above the sample table 4, and the laser head 5 is disposed outside the atomizing chamber 2; a transparent window 6 is arranged on the upper end surface of the atomizing chamber 2 and allows laser beams to enter the atomizing chamber, and the transparent window 6, the sample table 4 and the laser head 5 are on the same vertical line; the lateral surface of the atomizing chamber 2 is provided with an air inlet 7, and the installation height of the air inlet 7 is higher than that of the sample table 4. The utility model discloses the device cooperation laser instrument uses, can realize the metal liquid atomizing to prepared metal powder, this simple structure, convenient operation is fit for various metal powder's processing. The vibration frequency of the electromagnetic vibrator 2 is 1-2000Hz, and the amplitude is 0-5 mm. By selecting different vibration frequencies and amplitudes, the size of the droplets, i.e. the particle size of the metal powder, can be controlled. The electromagnetic vibrator is driven by a control power supply, a small amount of metal liquid is generated by heating and melting of laser, the metal liquid is broken into liquid drops under the vibration effect to form liquid drops to splash, the splashed liquid drops are cooled into metal powder particles, a metal sample is fixedly placed on a sample table in the atomizing chamber, and the metal sample is irradiated on the metal sample through a transparent window. The size of the transparent window 6 is larger than that of the sample table 4, so that the laser heating area can be ensured to completely cover the metal sample arranged on the sample table.
The atomizing chamber 3 is arranged to be of an airtight structure and can be vacuumized or protected by introducing inert gas.
Therefore, the utility model adopts the above structure electromagnetic vibration metal liquid atomizing device, cooperation laser instrument uses, can realize metal liquid atomizing, preparation metal powder, simple structure, and convenient operation is fit for various metal powder's processing.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides an electromagnetic vibration metal liquid atomizing device which characterized in that:
the device comprises an electromagnetic vibrator connected with a control power supply and an atomization chamber arranged on the electromagnetic vibrator, wherein a sample table for placing a metal sample is arranged at the bottom of a central shaft in the atomization chamber, a laser head is arranged right above the sample table, and the laser head is arranged outside the atomization chamber;
a transparent window is arranged on the upper end surface of the atomizing chamber, and the transparent window, the sample table and the laser head are on the same vertical line;
an air inlet is formed in the side face of the atomizing chamber, and the setting height of the air inlet is higher than that of the sample table.
2. An electromagnetic vibratory metallic liquid atomizer according to claim 1, wherein: the size of the transparent window is larger than that of the sample table.
3. An electromagnetic vibratory metallic liquid atomizer according to claim 2, wherein: the vibration frequency of the electromagnetic vibrator is 1-2000Hz, and the amplitude is 0-5 mm.
4. An electromagnetic vibratory metallic liquid atomizer according to claim 3, wherein: the atomizing chamber is arranged to be of an air-tight structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020567631.2U CN211939055U (en) | 2020-04-16 | 2020-04-16 | Electromagnetic vibration metal liquid atomizing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020567631.2U CN211939055U (en) | 2020-04-16 | 2020-04-16 | Electromagnetic vibration metal liquid atomizing device |
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| CN211939055U true CN211939055U (en) | 2020-11-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113275579A (en) * | 2021-05-24 | 2021-08-20 | 北京科技大学顺德研究生院 | Device for preparing metal powder by laser thermal explosion of metal foil strip and preparation method of metal powder |
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2020
- 2020-04-16 CN CN202020567631.2U patent/CN211939055U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113275579A (en) * | 2021-05-24 | 2021-08-20 | 北京科技大学顺德研究生院 | Device for preparing metal powder by laser thermal explosion of metal foil strip and preparation method of metal powder |
| CN113275579B (en) * | 2021-05-24 | 2023-01-24 | 北京科技大学顺德研究生院 | Device for preparing metal powder by laser thermal explosion of metal foil strip and preparation method of metal powder |
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