CN112453414A - Ultrasonic metal powder making method - Google Patents
Ultrasonic metal powder making method Download PDFInfo
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- CN112453414A CN112453414A CN202011353324.5A CN202011353324A CN112453414A CN 112453414 A CN112453414 A CN 112453414A CN 202011353324 A CN202011353324 A CN 202011353324A CN 112453414 A CN112453414 A CN 112453414A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/086—Cooling after atomisation
- B22F2009/0876—Cooling after atomisation by gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0888—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2202/00—Treatment under specific physical conditions
- B22F2202/01—Use of vibrations
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses an ultrasonic metal powder making method, which structurally comprises a hot air flow path and metal liquid condensed into powder. The invention processes high-temperature liquid metal to prepare metal powder with the particle size of less than 30 microns and high consistency by ultrasonic vibration.
Description
Technical Field
The invention belongs to the field of ultrasonic application, and particularly relates to an ultrasonic metal powder making method.
Background
The ultrasonic wave is a sound wave with frequency higher than 20000Hz, and it has good directivity, strong reflection capability, easy to obtain more concentrated sound energy, and the propagation distance in water is far longer than that in air, and it can be used for distance measurement, speed measurement, cleaning, welding, breaking stone, sterilization, etc. The method has a plurality of applications in medicine, military, industry and agriculture. Ultrasound is named because its lower frequency limit exceeds the upper human hearing limit. The metal powder is generally divided into two types, namely a mechanical method and a physical-chemical method, and can be directly refined from solid, liquid and gaseous metals and also can be converted from metal compounds in different states through reduction, pyrolysis and electrolysis. The carbide, nitride, boride and silicide of refractory metal can be directly prepared by chemical combination or reduction-chemical combination. However, the conventional metal powder preparation method cannot control the preparation of particles below 30 microns, and does not guarantee the consistency of finished products.
Disclosure of Invention
The invention processes high-temperature liquid metal to prepare metal powder with the particle size of less than 30 microns and high consistency by ultrasonic vibration.
The content of the invention is as follows:
an ultrasonic metal powder-making method includes such steps as preheating the tool head and blowing hood before machining, passing the hot air through eddy current generating chamber and airflow pressurizing part, and exhausting the hot air from airflow diffusing part.
Preferably, the air flow heated by high temperature is blown in from the air inlet hole of the blowing cover, the air flow firstly contacts with the side wall of the vortex generating chamber and flows along the side edge, the air flow rotating around the side wall gradually tends to form vortex, the hot air flow is continuously blown in and the vortex flow velocity of the hot air flow is accelerated along with the gradual reduction of the hole diameter of the air flow pressurization part.
Preferably, the circular heat preservation part at the circle center of the vortex generation chamber guides hot air flow to form a vortex, the arc-shaped surface of the heat preservation part can increase the flow velocity of the vortex, and a space formed by the heat preservation part and the first hollow groove can retain partial hot air flow to heat the liquid inlet hole at the upper part of the tool head.
Preferably, the hot air flow enters the air flow pressurizing part from the vortex generating chamber, only a circle of fine annular channel is left between the air flow pressurizing part and the liquid guide pipe, the hot air flow flowing through the air flow pressurizing part is accelerated to move downwards under the push of the subsequent gushing hot air flow,
when the air flow reaches the air flow diffusion chamber, the aperture is gradually enlarged, the hot air flow is guided by the aperture to form a trend of outward diffusion,
when the hot air flow is discharged from the air flow diffusion chamber, the hot air flow is kept in the blowing cover from the constraint of the hole wall and is uniformly diffused towards the periphery continuously at the downward and spiral speeds.
Preferably, the process of the molten metal path:
1) injecting the metal heated to the liquid state into the liquid inlet hole of the blowing cover;
2) the liquid metal is transited from the blowing cover to a liquid inlet hole in the tool head and then flows into a liquid guide hole with smaller aperture from the liquid inlet hole;
3) the liquid flows in the liquid guide hole and is heated and insulated by high-temperature heat flow in the air blowing cover;
4) controlling the flow speed through the fine liquid guide holes and atomizing the liquid metal at the peak of the wave band;
5) the atomized metal is dispersed in the air under the guidance of the diffusion holes at the lower ends of the liquid guide holes and is cooled and condensed in the air.
Preferably, the small-diameter liquid guide holes sieve the molten metal into a minimum form in a tension range; when the screened metal liquid reaches the wave peak end of the liquid guide pipe, the high-frequency sound wave breaks the intermolecular force of the metal liquid to disperse the metal liquid into more uniform and fine liquid drops; the sound waves continuing to travel downward carry the droplets to flow out of the orifice uniformly.
Preferably, the small droplets flowing out of the diffusion port are attached to the air flow discharged from the air blowing cover, and the air flow spirally diffuses and falls with the small droplets, is condensed into small particles through cooling of air, and finally falls into the closed collection box.
The invention has the advantages that:
by using the ultrasonic atomization principle, not only can the atomized particles be controlled below 30 microns, but also the consistency of the shape and the size of the metal particles can be ensured. The conversion of different materials and different particle sizes can be achieved by adjusting the power and frequency of the ultrasonic wave.
The internal structure of the air blowing cover enables hot air flow to generate outward-diffused vortex at the lower end, small liquid drops which are just atomized by ultrasonic waves at the discharge port fall into the vortex, the vortex bears the small liquid drops to be uniformly diffused outwards in a spiral mode, cooling time of contact with air when the small liquid drops is prolonged, the small liquid drops are condensed before the small liquid drops fall to the bottom of the collecting box, and the small liquid drops cannot be adhered to each other.
Drawings
Fig. 1 is a structural diagram of a frequency-tunable ultrasonic pulverizing apparatus.
FIG. 2 is a schematic diagram of an ultrasonic metal pulverizing apparatus.
FIG. 3 is a structural diagram of a blower housing of the ultrasonic metal pulverizing apparatus.
Fig. 4 is a structural view of a tool head of the ultrasonic metal pulverizing apparatus.
FIG. 5 is a sectional view of a blowing hood of the ultrasonic metal pulverizing apparatus.
FIG. 6 is a cross-sectional view of the tool head of the ultrasonic metal pulverizing apparatus.
FIG. 7 is a schematic diagram of the blower housing and tool head of the ultrasonic metal pulverizing apparatus.
In the figure, the blowing cover 100, the tool head seat 110, the hollow structure 111, the first hollow groove 112, the second hollow groove 113, the first annular platform 114, the second annular platform 115, the liquid inlet 116, the air inlet 117, the cover mounting hole 118, the blowing plate 120, the vortex generating chamber 121, the pre-mounting hole 122, the fixing rod mounting hole 123, the air outlet 130, the vortex generating chamber extension 131, the air pressurizing part 132, the air diffusion part 133, the tool head 200, the vibration guide joint 210, the extension rod mounting hole 211, the clamping tenon 212, the sealing layer 220, the pressing gasket seat 221, the sealing gasket seat 222, the liquid outlet 230, the heat preservation part 231, the atomization part 232, the liquid guide hole 233, the diffusion hole 234, the transducer 300, the cover transducer 301, the sealing copper ring 400, the pressing copper gasket, the annular pressing cover 402, the extension rod 403, the fixing plate 404, the fixing rod 405, the single-frequency converter 500, the frequency converter 600, the heat insulation layer 601, the through hole 602, A blower cover mounting hole 603 and a refrigerator 604.
Detailed Description
An ultrasonic metal powder-making method includes the hot air flow path and the metal liquid to be coagulated into powder, and is characterized in that the tool head 200 and the blowing cover 100 need to be preheated before processing, the hot air flow enters from the air inlet 117 and flows through the vortex generating chamber 121 and the air flow pressurizing part 132 to be finally discharged from the air flow diffusion part 133, and the whole process is the metal liquid heating and heat preservation.
In this embodiment, the tool head base 110 is an annular cylinder, the inner ring of the tool head base 110 has a multi-layer hollow structure 111, the hollow structure 111 includes a first hollow groove 112 and a second hollow groove 113, the first hollow groove 112 and the second hollow groove 113 both extend downward from the upper end surface of the tool head base 110, the diameter of the second hollow groove 113 is smaller than that of the first hollow groove 112, and the hollow depth is greater than that of the first hollow groove 112, a first annular platform 114 and a second annular platform 115 are formed by a fall between the hollow structures 111, a liquid inlet hole 116 is formed on the arc surface of the first hollow groove 112, the liquid inlet hole 116 is circular and horizontally penetrates through the outer arc surface of the tool head base 110 and the first hollow groove 112, a plurality of air inlet holes 117 are formed below the hollow structure 111, and the air inlet hole 117 is circular and horizontally penetrates through the inner arc surface and the outer arc surface of the tool head base 110, the longer side of the top view projection of the air inlet hole 117 is tangent to the inner annular surface of the tool head seat 110, so that the entering hot air can flow along the side wall of the vortex generating chamber 121.
In this embodiment, the circle center of the blowing disc 120 is provided with a vortex generating chamber 121, the vortex generating chamber 121 is in an inverted frustum shape, the upper opening of the vortex generating chamber 121 and the inner arc surface of the tool head seat 110 are circles with the same size and are connected with each other, the side wall of the vortex generating chamber 121 and the vertical surface form a 20-degree downward contraction, so that the hot air flow is gathered downward to generate a vortex with a higher flow rate.
In this embodiment, the whole air outlet 130 is in a funnel shape, the inside of the air outlet 130 can be divided into a vortex generation chamber extension 131, an air flow pressurization part 132 and an air flow diffusion part 133, the upper half part of the outer surface of the air outlet 130 is in a circular arc shape and is connected with the lower end of the blowing disc 120, the lower half part of the outer surface of the air outlet 130 is in a cylindrical shape, the vortex generation chamber extension 131 and the vortex generation chamber 121 are in the same shape and are connected with the lower end of the vortex generation chamber 121, the lower end of the vortex generation chamber extension 131 is connected with the air flow pressurization part 132, the air flow pressurization part 132 is in a cylindrical hollow shape, the lower end of the air flow diffusion part 133 is connected with the air flow diffusion part 133, the air flow diffusion part 133 is in a straight frustum hollow shape, the side wall of the air flow diffusion.
In this embodiment, the air flow heated by high temperature is blown from the air inlet hole 117 of the blowing cover 100, the longer side of the top view projection of the air inlet hole 117 is tangent to the inner ring surface of the tool head base 110, the air flow contacts the sidewall of the vortex generating chamber 121 and flows along the side, the air flow flowing around the sidewall gradually tends to form a vortex, and the vortex flow rate of the hot air flow is accelerated along with the gradual reduction of the aperture of the air flow pressurizing portion 132 due to the continuous blowing of the hot air flow.
In this embodiment, the circular heat-insulating portion 231 at the center of the vortex-generating chamber 121 guides the hot air flow to form a vortex, the arc-shaped surface of the heat-insulating portion 231 can also increase the flow rate of the vortex and can retain a part of the hot air flow with the space formed by the first hollow-out groove 112 to heat the liquid inlet 116 at the upper portion of the tool head 200, so that the liquid metal can always maintain a certain temperature and can flow in the pipeline.
In this embodiment, the hot air flow enters the air flow pressurizing part 132 from the vortex generating chamber 121, only a circle of fine annular channel is left between the air flow pressurizing part 132 and the liquid guiding tube, the hot air flow flowing through the air flow pressurizing part 132 is accelerated to move downwards under the push of the subsequent gushing hot air flow,
when reaching the air diffusion part 133, the aperture is gradually enlarged, the hot air flow is guided by the aperture to form a trend of outward diffusion,
when the hot air flow is discharged from the air flow diffusing part 133, the downward and spiral velocities obtained by the hot air flow escaping from the restriction of the hole wall in the blowing cover 100 are continuously and uniformly diffused all around.
In this embodiment, the shock-conducting connector 210 is a solid cylinder, the upper end surface of the shock-conducting connector 210 is provided with an extension bar mounting hole 211, and the depth of the extension bar mounting hole 211 is one half of the length of the shock-conducting connector 210, so as to enhance the conduction effect of sound waves and reduce the energy loss during conduction.
In this embodiment, the sealing layer 220 is also a solid cylinder, the diameter of the sealing layer 220 is greater than the diameter of the vibration-guiding joint 210, the annular surface of the sealing layer 220 protruding out of the vibration-guiding joint 210 is a pressing washer seat groove 221, the arc surface of the sealing layer 220 is provided with a liquid inlet hole 116, the opening path of the liquid inlet hole 116 is parallel to the horizontal plane, and the opening direction faces the center of the sealing layer 220.
In this embodiment, the liquid outlet 230 includes a heat preservation portion 231 and an atomization portion 232, the outer surface of the heat preservation portion 231 is in an inverted frustum shape, the side surface of the heat preservation part 231 extends to the bottom of the sealing layer 220 in a circular arc shape, the annular plane of the bottom of the sealing layer 220 which is not covered by the extension of the heat preservation part 231 is a sealing ring seat groove 222, a liquid guide hole 233 is arranged in the liquid outlet 230, the liquid guide hole 233 penetrates through the upper end and the lower end of the liquid outlet 230 in a direction perpendicular to the circle center, the liquid guide hole 233 continues to extend upward through the bottom of the packing layer 220 to communicate with the liquid inlet hole 116, the bottom end of the atomization part 232 is provided with a diffusion port 234, the diffusion port 234 is in a shape of a right frustum and is positioned on the same center of a circle with the liquid guide hole 233, the upper table surface of the diffusion port 234 is connected with the liquid guide hole 233, and the side surface of the frustum of the diffusion port 234 forms an included angle of 45 degrees with the horizontal plane, so that the formation of a vortex is better matched, and the flowing small liquid drops directly enter the vortex.
In this embodiment, the process of condensing the molten metal into powder:
1) injecting the metal heated to the liquid state from the liquid inlet hole 116 of the blowing cover 100;
2) the liquid metal is transited from the blowing cover 100 to the liquid inlet hole 116 in the tool head 200 and then flows into the liquid guide hole 233 with smaller aperture from the liquid inlet hole 116;
3) when flowing in the liquid guide hole 233, the air is heated and insulated by the high-temperature heat flow in the air blower cover 100;
4) the flow velocity is controlled by the fine liquid guide holes 233 and the liquid metal is atomized at the peak of the wave band;
5) the atomized metal is dispersed into the air and condensed in the air by being guided by the diffusion openings 234 at the lower ends of the liquid guide holes 233.
In this embodiment, the small-diameter drain holes 233 sieve the molten metal into a minimum shape in a tension range; when the screened metal liquid reaches the wave peak end of the liquid guide pipe, the high-frequency sound wave breaks the intermolecular force of the metal liquid to disperse the metal liquid into more uniform and fine liquid drops; the continuing downward conduction of the acoustic waves carries the droplets out of the diffuser 234 uniformly.
In this embodiment, the small droplets flowing out of the diffusion opening 234 are carried on the air flow discharged from the blowing hood 100, and the air flow spirally diffuses and falls with the small droplets, is condensed into small particles by cooling of air, and finally falls into a closed collection box. Wherein the spiral diffusion falling greatly increases the falling process, so that the dispersed droplets can be fully cooled without being condensed together.
In this embodiment, the lower end of the transducer 300 is connected with an extension bar 403, the transducer 300 is externally provided with a transducer cover 301, the lower end of the extension bar 403 is connected with the top end of the shock-conducting connector 210, the ring energy cover 301 is externally sleeved with a fixing plate 404, one end of the fixing plate 404 is provided with a fixing rod 405, the fixing rod 405 connects the blowing disc 120 with the fixing plate 404, the strength of the device is additionally increased through the fixing rod 405 and the fixing plate 404, and the extension bar 403 is protected from being broken in an accidental situation.
Firstly, high-temperature air flow is introduced to preheat the blowing cover 100 and the tool head 200, the air flow heated by high temperature is blown in from the air inlet hole 117 of the blowing cover 100, firstly, the air flow contacts the side wall of the vortex generating chamber 121 and flows along the side edge, the air flow rotating around the side wall gradually has the tendency of forming vortex, the hot air flow is blown in continuously and along with the gradual reduction of the aperture of the air flow pressurizing part 132, and the vortex flow rate of the hot air flow is accelerated. The hot air flow enters the air flow pressurizing part 132 from the vortex generating chamber 121, only a circle of fine annular channel is left between the air flow pressurizing part 132 and the liquid guide pipe, the hot air flow flowing through the air flow pressurizing part 132 is accelerated to move downwards under the push of the subsequently rushed hot air flow, the aperture is gradually enlarged when the hot air flow reaches the air flow diffusion part 133, the hot air flow forms a trend of outward diffusion through the guidance of the aperture, and when the hot air flow is discharged out of the air flow diffusion part 133, the downward and spiral speeds obtained by separating the hot air flow from the restriction of the aperture wall and keeping in the blowing cover are continuously and uniformly diffused all around.
The metal heated to the liquid state is injected from the liquid inlet hole 116 of the blowing cover 100, the liquid metal flows into the liquid guide hole 233 with smaller aperture from the liquid inlet hole 116 after passing through the blowing cover 100 to the liquid inlet hole 116 in the tool head, the liquid metal is heated and insulated by the high-temperature heat flow in the blowing cover 100 when flowing in the liquid guide hole 233, the flow speed is controlled by the fine liquid guide hole 233, the liquid metal is atomized at the peak of the wave band, the atomized metal is dispersed into the air under the guidance of the diffusion port 234 at the lower end of the liquid guide hole 233, the small liquid drops flowing out of the diffusion port 234 are attached to the air flow discharged from the blowing cover 100, the air flow spirally diffuses and falls with the small liquid drops, and the small liquid drops are condensed into small particles through the cooling of the air and finally fall into the closed collecting.
When different materials or powder with different sizes are required to be processed, the materials can be injected into the equipment corresponding to the technical indexes through the control computer and are produced together with other equipment, and the produced finished products can enter different collecting boxes for storage in a distinguishing manner. Because the piezoelectric ceramic in the transducer 300 loses the capability of converting electric energy into sound waves at an excessively high temperature, the heat insulation layer 601 in the frequency conversion box 600 can play a role in blocking the processing end from conducting high temperature upwards, and the refrigerator 604 at the top end also ensures a temperature environment suitable for the normal operation of the transducer 300.
The ultrasonic tool head is made into an internal hollow structure, the metal liquid is injected out from the hollow interior, dispersion and atomization are carried out at the front end of the liquid outlet 230, then high-temperature carrier gas is used for diffusion, and when the powder is cooled and condensed in the air, the metal powder is collected by a seal box, so that impurities are prevented from being doped by external pollution. The ultrasonic atomization principle is utilized to ensure the consistency of atomized particles, and the conversion of different materials and different particle sizes is realized by adjusting the power and the frequency of ultrasonic waves.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An ultrasonic metal powder making method comprises a hot air flow path and metal liquid which are condensed into powder, and is characterized in that a tool head (200) and a blowing cover (100) need to be preheated before processing, hot air enters from an air inlet hole (117) and flows through a vortex generating chamber (121) and an air flow pressurizing part (132) and is finally discharged from an air flow diffusion part (133), and the whole process is metal liquid heating and heat preservation.
2. An ultrasonic metal pulverizing method as defined in claim 1, which is characterized in that: the air flow heated by high temperature is blown in from the air inlet hole (177) of the blowing cover (200), the air flow firstly contacts with the side wall of the vortex generating chamber (121) and flows along the side edge, the air flow flowing around the side wall gradually has the tendency of forming vortex, the hot air flow is blown in continuously and the vortex flow velocity of the hot air flow is accelerated along with the gradual reduction of the aperture of the air flow pressurizing part (132).
3. An ultrasonic metal pulverizing method as defined in claim 2, wherein: the circular heat preservation part (231) at the circle center of the vortex generation chamber (121) guides hot air flow to form vortex, the arc-shaped surface of the heat preservation part (231) can increase the flow speed of the vortex, and a space formed by the heat preservation part and the first hollow-out groove (112) can temporarily retain part of the hot air flow to provide heating for the liquid inlet hole (116) at the upper part of the tool head (200).
4. An ultrasonic metal pulverizing method as defined in claim 2, wherein: the hot air flow enters the air flow pressurizing part (132) from the vortex generating chamber (121), only a circle of fine annular channel is reserved between the air flow pressurizing part (132) and the liquid guide pipe, the hot air flow flowing through the air flow pressurizing part (132) is accelerated to move downwards under the push of the subsequently gushed hot air flow,
when the airflow reaches the airflow diffusion part (133), the aperture is gradually enlarged, the hot airflow is guided by the aperture to form a trend of outward diffusion,
when the hot air flow is discharged from the air flow diffusion part (133), the downward and spiral speeds obtained by the hot air flow in the blowing cover (100) are kept to be diffused uniformly all around continuously by separating from the constraint of the hole wall.
5. An ultrasonic metal pulverizing process as claimed in claim 1, characterized in that the process of condensing the molten metal into powder:
1) injecting the metal heated to the liquid state from a liquid inlet hole (116) of the blowing cover (100);
2) the liquid metal is transited from the blowing cover (100) to a liquid inlet hole (116) in the tool head (200) and then flows into a liquid guide hole (233) with smaller aperture from the liquid inlet hole (116);
3) when flowing in the liquid guide hole (233), the liquid is heated and insulated by high-temperature heat flow in the air blower cover (100);
4) controlling the flow rate through fine liquid guide holes (233) and atomizing the liquid metal at the peak of the wave band;
5) the atomized metal is dispersed in the air under the guidance of the diffusion holes (234) at the lower ends of the liquid guide holes (233) and is cooled and condensed in the air.
6. An ultrasonic metal pulverizing method as defined in claim 5, which is characterized in that: the liquid guide holes (233) with small apertures screen the molten metal into the smallest form in the tension range; when the screened metal liquid reaches the wave peak end of the liquid guide pipe, the high-frequency sound wave breaks the intermolecular force of the metal liquid to disperse the metal liquid into more uniform and fine liquid drops; the continuing downward conduction of the acoustic waves carries the droplets out of the diffuser opening (234) uniformly.
7. An ultrasonic metal pulverizing method as defined in claim 5, which is characterized in that: the small liquid drops flowing out of the diffusion opening (234) are attached to the air flow discharged by the air blowing cover (100), the air flow spirally diffuses and falls with the small liquid drops, and the small liquid drops are condensed into small particles through cooling of air and finally fall into the closed collecting box.
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU63470A1 (en) * | 1942-03-04 | 1943-11-30 | И.Н. Иванов | Metal powder making machine |
| US3592391A (en) * | 1969-01-27 | 1971-07-13 | Knapsack Ag | Nozzle for atomizing molten material |
| JPH06346115A (en) * | 1993-06-03 | 1994-12-20 | Mitsubishi Materials Corp | Method for producing metal powder and device |
| JP2005139471A (en) * | 2003-11-04 | 2005-06-02 | Daido Steel Co Ltd | Gas atomizing nozzle, and metal melting/atomizing apparatus using the same |
| RU2509262C1 (en) * | 2012-12-28 | 2014-03-10 | Олег Савельевич Кочетов | Acoustic vortex nozzle |
| CN103949370A (en) * | 2014-05-05 | 2014-07-30 | 北京东方金荣超声电器有限公司 | Vortex scattering ultrasonic wave spray head |
| CN204486119U (en) * | 2015-03-19 | 2015-07-22 | 北京东方金荣超声电器有限公司 | A kind of high temperature resistant ultrasonic spray nozzle |
| CN105778978A (en) * | 2016-04-15 | 2016-07-20 | 洛阳森德石化工程有限公司 | Use method of multi-stage raw oil atomizing spray nozzle structure for heavy oil catalytic cracking |
| KR101818069B1 (en) * | 2016-07-28 | 2018-01-12 | (주)세라토크 | Ultrasonic nozzle deflector |
| CN107900364A (en) * | 2017-11-07 | 2018-04-13 | 常州大学 | Cooling method prepares the device of amorphous metal powder to a kind of ultrasonic atomizatio again |
| CN107999772A (en) * | 2017-11-10 | 2018-05-08 | 中国科学院力学研究所 | A kind of close coupling atomizer for improving nebulization efficiency and reducing liquid-drop diameter |
| CN107999312A (en) * | 2017-11-10 | 2018-05-08 | 中国科学院力学研究所 | Extend the method and close coupling atomizer of close coupling atomizer steady production time |
| RU2669116C1 (en) * | 2017-11-03 | 2018-10-08 | Олег Савельевич Кочетов | Vortex resonant nozzle |
| JP2020066783A (en) * | 2018-10-25 | 2020-04-30 | 三菱重工業株式会社 | Atomization nozzle, atomization device, method for producing metal powder, and metal powder |
| CN111331145A (en) * | 2020-04-28 | 2020-06-26 | 西普曼增材科技(北京)有限公司 | Device and method for preparing metal powder by ultrasonic |
-
2020
- 2020-11-26 CN CN202011353324.5A patent/CN112453414B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU63470A1 (en) * | 1942-03-04 | 1943-11-30 | И.Н. Иванов | Metal powder making machine |
| US3592391A (en) * | 1969-01-27 | 1971-07-13 | Knapsack Ag | Nozzle for atomizing molten material |
| JPH06346115A (en) * | 1993-06-03 | 1994-12-20 | Mitsubishi Materials Corp | Method for producing metal powder and device |
| JP2005139471A (en) * | 2003-11-04 | 2005-06-02 | Daido Steel Co Ltd | Gas atomizing nozzle, and metal melting/atomizing apparatus using the same |
| RU2509262C1 (en) * | 2012-12-28 | 2014-03-10 | Олег Савельевич Кочетов | Acoustic vortex nozzle |
| CN103949370A (en) * | 2014-05-05 | 2014-07-30 | 北京东方金荣超声电器有限公司 | Vortex scattering ultrasonic wave spray head |
| CN204486119U (en) * | 2015-03-19 | 2015-07-22 | 北京东方金荣超声电器有限公司 | A kind of high temperature resistant ultrasonic spray nozzle |
| CN105778978A (en) * | 2016-04-15 | 2016-07-20 | 洛阳森德石化工程有限公司 | Use method of multi-stage raw oil atomizing spray nozzle structure for heavy oil catalytic cracking |
| KR101818069B1 (en) * | 2016-07-28 | 2018-01-12 | (주)세라토크 | Ultrasonic nozzle deflector |
| RU2669116C1 (en) * | 2017-11-03 | 2018-10-08 | Олег Савельевич Кочетов | Vortex resonant nozzle |
| CN107900364A (en) * | 2017-11-07 | 2018-04-13 | 常州大学 | Cooling method prepares the device of amorphous metal powder to a kind of ultrasonic atomizatio again |
| CN107999772A (en) * | 2017-11-10 | 2018-05-08 | 中国科学院力学研究所 | A kind of close coupling atomizer for improving nebulization efficiency and reducing liquid-drop diameter |
| CN107999312A (en) * | 2017-11-10 | 2018-05-08 | 中国科学院力学研究所 | Extend the method and close coupling atomizer of close coupling atomizer steady production time |
| JP2020066783A (en) * | 2018-10-25 | 2020-04-30 | 三菱重工業株式会社 | Atomization nozzle, atomization device, method for producing metal powder, and metal powder |
| CN111331145A (en) * | 2020-04-28 | 2020-06-26 | 西普曼增材科技(北京)有限公司 | Device and method for preparing metal powder by ultrasonic |
Non-Patent Citations (2)
| Title |
|---|
| KLAUS BAUCKHAGE等: "Production of fine powders by ultrasonic standing wave atomization", 《POWDER TECHNOLOGY》 * |
| 党新安等: "金属超声雾化技术的研究进展", 《有色金属》 * |
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| CN112453414B (en) | 2023-01-24 |
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