CN107900364A - Cooling method prepares the device of amorphous metal powder to a kind of ultrasonic atomizatio again - Google Patents
Cooling method prepares the device of amorphous metal powder to a kind of ultrasonic atomizatio again Download PDFInfo
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- CN107900364A CN107900364A CN201711086240.8A CN201711086240A CN107900364A CN 107900364 A CN107900364 A CN 107900364A CN 201711086240 A CN201711086240 A CN 201711086240A CN 107900364 A CN107900364 A CN 107900364A
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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
- B22F9/002—Making metallic powder or suspensions thereof amorphous or microcrystalline
- B22F9/008—Rapid solidification processing
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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
- 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
- B22F2009/0832—Handling of atomising fluid, e.g. heating, cooling, cleaning, recirculating
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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
- B22F2009/0864—Cooling after atomisation by oil, other non-aqueous fluid or fluid-bed cooling
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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
- B22F2009/0872—Cooling after atomisation by water
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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
- B22F2009/0896—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 particle transport, separation: process and apparatus
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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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Abstract
The present invention relates to a kind of amorphous powder ultrasonic atomizatio preparation facilities, it is particularly a kind of be related to melting, the novel metal amorphous powder Preparation equipment of the ultrasonic atomizatio being integrated is collected in ultrasonic atomizatio, the secondary recooling system of liquid nitrogen+water, vacuum drying, discharging screening.Raw material melting is point molten metal by vacuum fusion crucible.The molten liquid is changed into atomized spherical drop under ultrasonic atomizer effect.The molten drop forms metallic particles through liquid nitrogen and cooling water rapid cooling.The vacuum dried case of metallic particles is dried.The metallic particles finished to the drying is sieved and collected.The preparation method of amorphous powder in the present invention is suitable for metal, quasi-crystalline substance and crystallite at the same time.
Description
Technical field
The present invention relates to a kind of amorphous powder ultrasonic atomizatio preparation facilities, particularly one kind is related to melting, ultrasonic atomizatio, liquid
The novel metal amorphous powder system for the ultrasonic atomizatio that the secondary recooling system of nitrogen+water, vacuum drying, discharging screening collection are integrated
Standby equipment.
Background technology
At the beginning of 21 century, due to the proposition of the strategy of German Industrial 4.0 and made in China 2025, manufacturing industry starts ripple innovation wound
The climax made.Wherein, the increases material manufacturing technology using 3D printing as representative is paid high attention to be subject to global scientific and technological circle, the increasing material of metal
Manufacture also increasingly becomes following manufacturing developing direction.However, with the development of manufacturing technology, it is corresponding the problem of also increasingly
Highlight, manufacture material therefor becomes one of an important factor for restricting its development.The emerging technologies pair such as metal 3D printing, laser spraying
Dusty material proposes high requirement, and the performance of traditional simple substance or alloy powder has been difficult to meet high-quality quantity high performance production
The manufacture demand of product.Therefore, non-crystalline material becomes the research hotspot of scientific research personnel.Amorphous powder is except with traditional high-purity
The characteristics of degree, sphericity, high fluidity and centralized particle diameter, also with excellent soft magnet performance, high reactivity and urge
Change the physicochemical characteristics such as performance, good mechanical property, obtained in fields such as space flight and aviation, naval vessel, automobile, metallurgy and chemical industry more next
More it is widely applied.
Heterogeneous nucleation during reduction cooled and solidified is to prepare large block amorphous key problem in technology.Preparation main at present
Method is：The methods of rapid solidification method, melt supercooled method, high undercooling.Melt supercooled method is to prepare the main side of amorphous alloy
Method.High cooling velocity (105K/s~106K/s liquid metal forming core in cooling procedure and length can) be effectively inhibited
Greatly, so as to obtain non-crystalline solids.Equally, the glass forming ability of amorphous powder also can be weakened in situations below：It is 1. more
Component alloys component deviate from eutectic or nearly eutectic composition point；2. the purity of raw material is not high enough；3. foundry alloy melt match somebody with somebody or
It is that impurity is introduced in forming process；4. the degree of superheat selection of foundry alloy is improper before shaping.
In recent years, common amorphous band crush method and gas atomization are due to the limitation of apparatus and process condition, powder by atomization
Method will obtain 105The cooling velocity of K/s is difficult, and prepares the method for powder there are powder morphology is irregular, particle diameter distribution
Scope is wide and oxygen content height etc. is asked；Although water atomization can improve the cooldown rate for preparing amorphous, liquid stream and water are melted
The interaction of stream, obtained powder is oxidizable, in irregular shape, while aquatic products unboiled water vapor film, resistance are met during molten metal solidification
Hinder the rapid cooling of molten drop.
At present, it is domestic to be limited by technical merit, make slow progress to the development work of amorphous magnetic powder Preparation equipment, correlation is raw
It is less to produce enterprise, but there is the great market demand again to amorphous powder, therefore, there is an urgent need for develop a set of grasp core technology
New amorphous powder manufacturing equipment.
The content of the invention
It is an object of the invention to solve the above problem existing in the prior art, to adapt to the quick hair of increases material manufacturing technology
Exhibition, there is provided a kind of stabilization, continuous, controllable amorphous metal powder ultrasonic are atomized new preparation facilities.The present invention is based on ultrasound
Vibration principle, the preparation that molten metal is atomized and forces chilling to realize amorphous powder in low temperature nitrogen and cooling water.
Present invention employs following technical scheme：From top to bottom mainly by melting plant；Ultrasonic atomizer；Cooling device
(liquid nitrogen+water cooling)；It is dry to be formed with collection device.
The melting plant includes molten metal liquid feed valve, metal inlet tube and crucible.Wherein, crucible is heat-barrier material system
Into equipped with crucible upper cover, crucible upper cover center is equipped with screw-type upper cover air inlet, easy to be passed through argon gas after vacuumizing；Crucible bottom
Portion is equipped with metal liquid feed valve, and metal liquid feed valve is opened, and point molten metal can flow downward out crucible by metal input duct；Crucible
Upper cover is closely connected by connecting bolt with crucible.
The ultrasonic atomizing device includes supersonic generator, ultrasonic transformer, piezoelectric transducer and tool heads.Wherein,
The alternating current of 50-60Hz can be converted into high power by the power adjustable of supersonic generator, ultrasonic vibration source (driving power)
High-frequency (15kHz-100kHz) power supply of (300W-600W) is supplied to piezoelectric transducer, can also root in supersonic generator
According to needing to be integrated with time schedule controller, setting control ultrasonic wave hair shakes time and intermittent time；Piezoelectric transducer is high-frequency
Electric energy is converted into mechanical vibrational energy；Ultrasonic transformer is the important component in ultrasonic atomizing device, is hollow tubular structure, and metal is molten
For liquid by ultrasonic transformer pipeline flow-direction tool heads, its main function in ultrasonic atomizing device is the particle displacement mechanical oscillation
Or speed amplification, and ultrasonic energy is concentrated on on less area i.e. cumulative；Tool heads are coniform, and taper is 120 °, root
Integrally requiring to be adjusted according to equipment, conehead has aperture, and the molten metal in aperture becomes vaporific and flies out,；Supersonic generator top connects
Bolt, makes supersonic generator be connected to crucible bottom.Supersonic generator, piezoelectric transducer and tool heads are with ultrasonic transformer
Heart line is assemblied on ultrasonic transformer downwards for axle center successively, and all parts position that is linked and packed is fixed.
The cooling device includes liquid nitrogen cooling and water-cooling apparatus, is made of liquid nitrogen cooling and water cooling space cold
But room is in the middle part of device, i.e., below tool heads and dry with being vacuum sealing space above collection device.
Wherein, liquid nitrogen cooling device cools down to be preceding, including pressure and temp monitor, liquid nitrogen pipe, liquid nitrogen liquid feed valve, pressure release
Valve, pressure release tank and air bleeding valve.Pressure and temp monitor is installed at the top of cooling chamber, around the round platform wall of cooling chamber top spirally
Liquid nitrogen pipe is dispersed with, liquid nitrogen entrance is equipped with liquid nitrogen liquid feed valve, and liquid nitrogen pipe is inwardly evenly distributed a large amount of pores, pore and cooling
Room connects and is equipped with pore tandem tap, the punctulate opening and closing of control institute；There is an exhaust pressure relief to lead in the middle part of cooling chamber
Road, in order to ensure safety, cooling chamber pressure release is controlled with relief valve and air bleeding valve respectively with exhaust.
Wherein, water cooling plant is postcooling (cooling down again), including inlet valve, liquid level monitoring sensor, electric machine agitator, row
Water valve I, drain valve II, powder entering valve.Water cooling plant is equipped with liquid level monitoring sensor, water inlet (predetermined water on predetermined water level line
Bit line is less than water inlet), inlet valve will turn off when liquid level reaches predetermined water level, not up to predetermined water level, and valve can hand
Dynamic control；The cooling chamber bottom is equipped with electric machine agitator, is controlled with circuit, and rabble is with 50 revs/min of speed rotation during work；It is cold
But drip chamber is arranged below in room, and draining control valve 1 controls cooling water and metallic particles enters drip chamber, and drain valve 2 controls draining
The discharge of room waste water；Drip chamber lower part is equipped with inverted round stage storage powder space, and the powder equipped with powder entering valve control humidity at this enters dry
Dry case.
The Minton dryer is by drying temperature controller；Nitrogen governor；Nitrogen dynamic valve；Dry out powder switch；It is dry
Case.Wherein, dry temperature controller can realize the real-time monitoring to drying temperature；Nitrogen dynamic valve, nitrogen governor are arranged on drying
Case side, driving source of the nitrogen as flow of powder after drying；Dry out the connection of powder switch control drying box and screening plant
Passage.
It is described discharging screening collection device by screening disk, electric rotating machine, swingle, screen out powder switch, screening hole, receive powder
Ramp way and meal outlet composition.Wherein, disk is sieved to be equipped with around the equally distributed intensive sieve powder hole in the center of circle, 2 screening disk hole
Footpath is different, and aperture is depending on application demand, thin three classes in being divided into slightly；Electric rotating machine is connected with swingle, and swingle is from screening
Disk center passes through, to be fixedly connected；Sieving disk can rotating under electric rotating machine driving；Screen out powder switch control screening space
Connection with receiving powder ramp way；It is incline structure to receive powder ramp way, facilitates the rolling of powder to collect；Ramp way end is set
There is meal outlet.
Brief description of the drawings
Fig. 1 is ultrasonic atomizatio equipment general illustration.
1- melting plants；2- ultrasonic atomizers；3- cooling devices (liquid nitrogen+water cooling)；4- Minton dryers；5- screenings are received
Acquisition means.
Fig. 2 is melting plant schematic diagram.
1-1 upper cover air inlets；1-2 connection bolts；1-3 point molten metals；1-4 molten metal liquid feed valves；1-5 metal feed liquors
Pipe；1-6 crucible upper covers
Fig. 3 is ultrasonic atomizer schematic diagram.
2-1 connection bolts；2-2 supersonic generators；2-3 ultrasonic transformers；2-4 piezoelectric transducers；2-5 tool heads.
Fig. 4 cooling devices (liquid nitrogen+water cooling) schematic diagram.
3-1 liquid nitrogen pipes；3-2 liquid nitrogen liquid feed valves；3-3 metal atomization liquid；3-4 relief valves；3-5 air bleeding valves；3-6 pressure release tanks；
3-7 pressure and temp monitors；3-8 electric machine agitators；3-9 inlet valves；3-10 drain valves I；3-11 drain valves II；3-12 is into powder
Valve；3-13 liquid level monitoring sensors.
Fig. 5 is dried and collection device schematic diagram.
4-1 dries temperature controller；4-2 nitrogen governors；4-3 nitrogen dynamic valves；4-4 dries out powder switch；4-5 drying boxes 5-
1 screening disk；5-2 electric rotating machines；5-3 swingles；5-4 screens out powder switch；5-5 sieves hole；5-6 receives powder ramp way；5-7 goes out
Powder mouth.
Fig. 6 ultrasonic atomizatio equipment overview flow charts.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
As shown in Figure 1, be optimum embodiment of the present invention, cooling method prepares amorphous metal powder and sets a kind of ultrasonic atomizatio again
It is standby, including melting plant 1, ultrasonic atomizer 2, cooling device 3 (liquid nitrogen+water cooling), 4- Minton dryers, 5- screening collection dress
Put.
The preparation method of amorphous powder provided by the invention, includes the following steps：
(1) raw material melting is point molten metal by vacuum fusion crucible.
(2) molten liquid described in is changed into atomized spherical drop under ultrasonic atomizer effect.
(3) molten drop described in forms metallic particles through liquid nitrogen and cooling water rapid cooling.
(4) the vacuum dried case of the metallic particles is dried.
(5) metallic particles finished to the drying is sieved and collected.
It should be noted that the preparation method of the amorphous powder in the present invention is suitable for metal, quasi-crystalline substance and crystallite at the same time.
All valve switch remain off before the equipment work.
Wherein, the melting plant 1 is arranged on the top of main equipment, can add metal derby progress vacuum high-temperature and melt
Refining, can also load melted point molten metal 1-3 inside crucible.Upper cover air inlet 1-1 is equipped with crucible upper cover 1-6,
After molten metal 1-3 (block) is added, with 4 connection bolt 1-2 by crucible cover tightening seal, first taken out very by upper cover air inlet 1-1
Sky, then the pressurization of argon filling gas shielded, pressure control is in 5MPa -15MPa, to ensure that air pressure is more than before opening metal liquid liquid feed valve 1-4
The nitrogen pressure of cooling chamber.
Smelting apparatus is ready, opens inlet valve 3-9, injects low temperature distillation water, observation liquid level prison to cooling chamber bottom
Sensor 3-13 is surveyed, stops water filling when water level reaches preset water level and closes inlet valve 3-9.Water filling finishes, and opens liquid nitrogen feed liquor
Valve 3-2, injects liquid nitrogen into the liquid nitrogen pipe 3-1 around cooling chamber, and liquid nitrogen liquid feed valve 3-2 is closed after a certain amount of liquid nitrogen is injected,
Pore tandem tap is opened, cooling chamber is cooled down, observation pressure and temp monitor 3-7, it is ensured that air pressure is less than melting earthenware
Argon pressure in crucible 1, that is, show air pressure<1/3 argon pressure, temperature is at 0 DEG C -5 DEG C, if pressure is higher, can open pressure release
The appropriate pressure releases of valve 3-4, cooling temperature adjustment terminate, and close respective switch and valve.
When above device adjustment finishes, unlatching electric machine agitator 3-8, opens pore tandem tap, opens molten metal feed liquor
Valve 1-4.Cooling water does low-speed motion, it is ensured that even water temperature.Molten metal because high pressure from metal inlet tube 1-5 flow into ultrasonic atomizatio
Device 2, by supersonic generator 2-2, flows down along ultrasonic transformer 2-3 passages, and passes through piezoelectric transducer 2-4 and reach tool heads
2-5.During being somebody's turn to do, common alternating current is converted into high-frequency electromagnetic viscosimeter by supersonic generator 2-2, then passes through piezoelectricity
Formula transducer 2-4, converts it to the mechanical oscillation of high frequency, then expands amplitude via ultrasonic transformer 2-3, reaches tool heads 2-
5.When metal liquid contacts tool heads 2-5, one layer of liquid film is transformed into ultrasonic activation lower berth, when tool heads working face reaches one
During fixed amplitude, thin liquid layer is shaken broken, and flying out from working surface to form atomized drop and sprayed from tool heads aperture, and jet velocity can
By adjusting argon pressure suitable control.Liquid nitrogen is vaporized to cooling chamber to absorb heat, and maintains cooling room temperature, while at the beginning of making atomized drop
Priority quickly cooling is coagulated, and first condensed drop is fallen into cold water, carries out secondary solidify again so that molten drop center also can be fast
Quickly cooling is coagulated.
After a certain period of time, electric machine agitator 3-8 is closed, closes molten metal liquid feed valve 1-4, stops ultrasonic atomizer 2.Solidification
Small metal particles concentrate on cooling chamber bottom.I 3-10 of drain valve is opened, metallic particles and water enter drip chamber, metallic particles
Sink to inverted round stage storage powder space.I 3-10 of drain valve is closed, opens II 3-11 of drain valve, most of waste water excludes, and is mixed with a small amount of water
Metallic particles stay in drip chamber bottom.Powder entering valve 3-12 is opened, after metallic particles falls into vacuum drying chamber, closes powder entering valve 3-
12.At this time, pressure and temp monitor 3-7 is observed, if pressure is larger, relief valve 3-4 is opened, high pressure nitrogen is leaked into pressure release tank 3-
6, then air bleeding valve 3-5 openings, nitrogen is excluded, and after cooling chamber pressure, which reduces, to be stablized, closes relief valve 3-4 and air bleeding valve 3-
5。
Vacuum drying chamber switch is opened, dry temperature controller 4-1 is adjusted, 100 DEG C -200 DEG C of drying temperature is set, to moist powder
End is dried.Drying time at least more than 2h, after dry, opening dries out powder switch 4-4, and opens electric rotating machine 5-
2 drive screening disk 5-1 to rotate by swingle 5-3.Open nitrogen dynamic valve 4-3 and carry out nitrogen driving, adjust nitrogen governor
4-2 adjusts powder particles speed.Metal dust enters sieve powder space.Electric rotating machine 5-2 does periodicity rotating and carries out sieve powder, small
Diameter powders are fallen from screening hole 5-5.Sieve powder open afterwards for a period of time screens out powder on powder switch 5-4, screening disk 5-1 by
It is dumped into centrifugal action and receives powder ramp way 5-6, is received powder ramp way and be divided into three layers of upper, middle and lower, it is three kinds thin in collecting slightly respectively
The powder of particle diameter, the powder of collection are exported from meal outlet 5-7.After terminating whole pulverizing process, all switches, valve, electricity are closed
Machine.
Claims (6)
1. cooling method prepares the device of amorphous metal powder to a kind of ultrasonic atomizatio again, it is characterised in that：Described device is from top to bottom
The cooling device being mainly made of melting plant, ultrasonic atomizer, liquid nitrogen and water cooling and drying and collection device form；
The melting plant includes molten metal liquid feed valve, metal inlet tube and crucible；Wherein, crucible is made of heat-barrier material, if
There is a crucible upper cover, crucible upper cover center is equipped with screw-type upper cover air inlet, easy to be passed through argon gas after vacuumizing；Crucible bottom is equipped with
Metal liquid feed valve, metal liquid feed valve are opened, and point molten metal can flow downward out crucible by metal input duct；Crucible upper cover is led to
Connection bolt is crossed closely to be connected with crucible；
The ultrasonic atomizing device includes supersonic generator, ultrasonic transformer, piezoelectric transducer and tool heads；Wherein, it is ultrasonic
High-frequency electric energy is converted into mechanical vibrational energy by the power adjustable of wave producer, piezoelectric transducer；Ultrasonic transformer is ultrasonic atomizatio
Important component in device, is hollow tubular structure, metallic solution is by ultrasonic transformer pipeline flow-direction tool heads, it is in ultrasonic mist
It is the particle displacement or speed amplification mechanical oscillation to disguise the main function in putting, and ultrasonic energy is concentrated on less face
It is cumulative in product；Tool heads are coniform, and conehead has aperture, and the molten metal in aperture becomes vaporific and flies out,；Supersonic generator top connects
Connecting bolt, makes supersonic generator be connected to crucible bottom；Supersonic generator, piezoelectric transducer and tool heads are with ultrasonic transformer
Center line is assemblied on ultrasonic transformer downwards for axle center successively, and all parts position that is linked and packed is fixed；
The cooling device includes liquid nitrogen cooling and water-cooling apparatus, the cooling chamber being made of liquid nitrogen cooling and water cooling space
Middle part in device, i.e., it is below tool heads and dry with being vacuum sealing space above collection device；
Wherein, liquid nitrogen cooling device is preceding cooling, including pressure and temp monitor, liquid nitrogen pipe, liquid nitrogen liquid feed valve, relief valve, is let out
Press tank and air bleeding valve；Pressure and temp monitor is installed at the top of cooling chamber, is spirally distributed around the round platform wall of cooling chamber top
Liquid nitrogen pipe, liquid nitrogen entrance is equipped with liquid nitrogen liquid feed valve, and liquid nitrogen pipe is inwardly evenly distributed a large amount of pores, and pore connects with cooling chamber
Lead to and be equipped with pore tandem tap, the punctulate opening and closing of control institute；There is an exhaust pressure relief passage in the middle part of cooling chamber, be
Ensure safety, cooling chamber pressure release is controlled with relief valve and air bleeding valve respectively with exhaust；
Water cooling plant is postcooling, including inlet valve, liquid level monitoring sensor, electric machine agitator, drain valve I, drain valve II, into
Powder valve；Water cooling plant is equipped with liquid level monitoring sensor, and water inlet is on predetermined water level line, inlet valve when liquid level reaches predetermined water level
Goalkeeper is automatically closed, and not up to predetermined water level, valve are manually controllable；The cooling chamber bottom is equipped with electric machine agitator；Under cooling chamber
Face is equipped with drip chamber, and draining control valve 1 controls cooling water and metallic particles enters drip chamber, and drain valve 2 controls drip chamber waste water
Discharge；Drip chamber lower part is equipped with inverted round stage storage powder space, and the moist powder of powder entering valve control is equipped with this and enters drying box；
The Minton dryer is by drying temperature controller；Nitrogen governor；Nitrogen dynamic valve；Dry out powder switch；Drying box；Its
In, dry temperature controller can realize the real-time monitoring to drying temperature；Nitrogen dynamic valve, nitrogen governor are arranged on drying box side
Face, driving source of the nitrogen as flow of powder after drying；Dry out the interface channel of powder switch control drying box and screening plant；
It is described discharging screening collection device by screening disk, electric rotating machine, swingle, screen out powder switch, screening hole, receive powder tilt
Passage and meal outlet composition；Wherein, sieve disk to be equipped with around the equally distributed intensive sieve powder hole in the center of circle, 2 screening disk hole footpaths are not
Together, aperture is depending on application demand, thin three classes in being divided into slightly；Electric rotating machine is connected with swingle, and swingle is from screening disk
The heart passes through, to be fixedly connected；Sieving disk can rotating under electric rotating machine driving；Powder switch control screening space is screened out with receiving
The connection of powder ramp way；It is incline structure to receive powder ramp way, facilitates the rolling of powder to collect；Ramp way end is equipped with out
Powder mouth.
2. cooling method prepares the device of amorphous metal powder to a kind of ultrasonic atomizatio as claimed in claim 1 again, it is characterised in that：
The ultrasonic vibration source of supersonic generator can be converted into the alternating current of 50-60Hz the high-frequency of high power (300W-600W)
(15kHz-100kHz) power supply is supplied to piezoelectric transducer, and timing control can be also integrated with as needed in supersonic generator
Device, setting control ultrasonic wave hair shake time and intermittent time.
3. cooling method prepares the device of amorphous metal powder to a kind of ultrasonic atomizatio as claimed in claim 1 again, it is characterised in that：
Tool heads are coniform, and taper is 120 °.
4. cooling method prepares the device of amorphous metal powder to a kind of ultrasonic atomizatio as claimed in claim 1 again, it is characterised in that：
Electric machine agitator, rabble is rotated with 50 revs/min of speed during work.
5. cooling method prepares the device of amorphous metal powder to a kind of ultrasonic atomizatio as claimed in claim 1 again, it is characterised in that：
Receive powder ramp way and be divided into three layers of upper, middle and lower, the powder of thin three kinds of particle diameters, the powder of collection are led from meal outlet in collecting slightly respectively
Go out.
6. cooling method prepares the device of amorphous metal powder to a kind of ultrasonic atomizatio as claimed in claim 1 again, it is characterised in that：
The melting plant is arranged on the top of main equipment, can add metal derby and carry out vacuum high-temperature melting, can also incite somebody to action
Melted point molten metal loads inside crucible；Upper cover air inlet is equipped with lid on crucible, after molten metal is added, with 4
A connection bolt first vacuumizes crucible cover tightening seal by upper cover air inlet, then the pressurization of argon filling gas shielded, and pressure control exists
5MPa -15MPa, to ensure that air pressure before opening metal liquid liquid feed valve is more than the nitrogen pressure of cooling chamber；
Smelting apparatus is ready, opens inlet valve, injects low temperature distillation water, observation liquid level monitoring sensing to cooling chamber bottom
Device, stops water filling and closes inlet valve when water level reaches preset water level；Water filling finishes, and opens liquid nitrogen liquid feed valve, to cooling chamber week
Liquid nitrogen is injected in the liquid nitrogen pipe enclosed, liquid nitrogen liquid feed valve is closed after a certain amount of liquid nitrogen is injected, pore tandem tap is opened, to cold
But room is cooled down, and observes pressure and temp monitor, it is ensured that air pressure is less than the argon pressure in melting crucible, that is, shows air pressure<
1/3 argon pressure, temperature is at 0 DEG C -5 DEG C, if pressure is higher, can open the appropriate pressure release of relief valve, cooling temperature adjustment knot
Beam, closes respective switch and valve；
When above device adjustment finishes, unlatching electric machine agitator, opens pore tandem tap, opens molten metal liquid feed valve；Cooling
Water does low-speed motion, it is ensured that even water temperature；Molten metal is because high pressure is from metal inlet tube inflow ultrasonic atomizer, by ultrasonic wave
Generator, flows down along ultrasonic transformer passage, and passes through piezoelectric transducer and reach tool heads；During being somebody's turn to do, supersonic generator
Common alternating current is converted into high-frequency electromagnetic viscosimeter, then by piezoelectric transducer, converts it to the machine of high frequency
Tool vibrates, and then expands amplitude via ultrasonic transformer, reaches tool heads；When metal liquid contacts tool heads, shake in ultrasonic wave
Dynamic lower berth transforms into one layer of liquid film, and when tool heads working face reaches certain amplitude, thin liquid layer is shaken broken, is flown out from working surface
Form atomized drop to spray from tool heads aperture, jet velocity can be by adjusting argon pressure suitable control；Liquid nitrogen is to cooling chamber
Vaporization heat absorption, maintains cooling room temperature, while atomized drop is rapidly condensed for the first time, and first condensed drop falls into cold water
In, carry out secondary solidify again so that molten drop center also being capable of rapid condensation；
After a certain period of time, electric machine agitator is closed, closes molten metal liquid feed valve, stops ultrasonic atomizer；Small of the metal of solidification
Grain concentrates on cooling chamber bottom；Drain valve I is opened, metallic particles and water enter drip chamber, and metallic particles sinks to inverted round stage storage powder
Space；Drain valve I is closed, opens drain valve II, most of waste water excludes, and the metallic particles for being mixed with a small amount of water stays in drip chamber bottom
Portion；Powder entering valve is opened, after metallic particles falls into vacuum drying chamber, closes powder entering valve；At this time, pressure and temp monitor is observed, if
Pressure is larger, opens relief valve, high pressure nitrogen is leaked into pressure release tank, and then air bleeding valve is opened, and nitrogen is excluded, when cooling chamber pressure
After power reduction is stablized, relief valve and air bleeding valve are closed；
Vacuum drying chamber switch is opened, dry temperature controller is adjusted, sets 100 DEG C -200 DEG C of drying temperature, moist powder is carried out
It is dry, drying time at least more than 2h；After drying, opening dries out powder switch, and opens electric rotating machine and pass through swingle
Screening disk is driven to rotate；Open nitrogen dynamic valve and carry out nitrogen driving, adjustment nitrogen governor adjustment powder particles speed；Metal
Powder enters sieve powder space；Electric rotating machine does periodicity rotating and carries out sieve powder, and small particle powder is fallen from screening hole；Sieve powder one
Opened after the section time and screen out powder switch, the powder sieved on disk receives powder ramp way since centrifugal action is dumped into, and receives powder and inclines
Access ramp is divided into three layers of upper, middle and lower, and the powder of thin three kinds of particle diameters in collecting slightly respectively, the powder of collection is exported from meal outlet, is terminated
After whole pulverizing process, all switches, valve, motor are closed.
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| CN108838394A (en) * | 2018-07-12 | 2018-11-20 | 刘策 | A kind of material placing device for metallurgical powder |
| CN110303162A (en) * | 2019-08-14 | 2019-10-08 | 北京七弟科技有限公司 | A kind of ultrasonic wave prepares metal ball shaped powder device |
| 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 |
| CN111590083A (en) * | 2020-05-27 | 2020-08-28 | 安泰（霸州）特种粉业有限公司 | Preparation method of spherical nanocrystalline alloy powder |
| CN111922352A (en) * | 2020-07-27 | 2020-11-13 | 安徽旭晶粉体新材料科技有限公司 | Efficient preparation device and preparation method of spherical copper alloy powder |
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| CN112743094A (en) * | 2020-12-29 | 2021-05-04 | 南通金源智能技术有限公司 | Preparation method and device of novel superfine amorphous magnetic powder |
| WO2021139553A1 (en) * | 2020-05-27 | 2021-07-15 | 安泰（霸州）特种粉业有限公司 | Spherical amorphous alloy powder preparation apparatus and method |
| CN113731326A (en) * | 2021-08-19 | 2021-12-03 | 化学与精细化工广东省实验室 | Large-volume ultrasonic tubular reactor |
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| CN108838394A (en) * | 2018-07-12 | 2018-11-20 | 刘策 | A kind of material placing device for metallurgical powder |
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| CN112281015A (en) * | 2020-11-25 | 2021-01-29 | 湖南工业大学 | Device for processing aluminum alloy composite material |
| CN112281015B (en) * | 2020-11-25 | 2023-11-14 | 湖南工业大学 | Device for processing aluminum alloy composite material |
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| CN112743094A (en) * | 2020-12-29 | 2021-05-04 | 南通金源智能技术有限公司 | Preparation method and device of novel superfine amorphous magnetic powder |
| CN113794019A (en) * | 2021-08-17 | 2021-12-14 | 阳萍 | Explosion-proof type lithium ion battery with electrolyte discharge capacity |
| CN113731326A (en) * | 2021-08-19 | 2021-12-03 | 化学与精细化工广东省实验室 | Large-volume ultrasonic tubular reactor |
| CN113731326B (en) * | 2021-08-19 | 2023-11-03 | 墨格微流科技(汕头)有限公司 | Large-volume ultrasonic tube reactor |
| CN115780814A (en) * | 2022-11-02 | 2023-03-14 | 杭州夸克新材料技术有限公司 | High-precision non-ferrous metal powder balling equipment |
| CN115815610A (en) * | 2022-12-29 | 2023-03-21 | 江苏威拉里新材料科技有限公司 | Metal powder ultrasonic atomization equipment |
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