CN108559858A - Bionical turbulent flow permanent magnetic stirring smelting process - Google Patents
Bionical turbulent flow permanent magnetic stirring smelting process Download PDFInfo
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- CN108559858A CN108559858A CN201711065981.8A CN201711065981A CN108559858A CN 108559858 A CN108559858 A CN 108559858A CN 201711065981 A CN201711065981 A CN 201711065981A CN 108559858 A CN108559858 A CN 108559858A
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- permanent magnetic
- magnetic stirring
- sound
- bionical
- turbulent flow
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/451—Magnetic mixers; Mixers with magnetically driven stirrers wherein the mixture is directly exposed to an electromagnetic field without use of a stirrer, e.g. for material comprising ferromagnetic particles or for molten metal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The present invention provides a kind of method that can accelerate element mixing, i.e. bionical turbulent flow permanent magnetic stirring smelting process, it can obtain high-performance, homogeneous aluminum alloy materials, this method is put into using the recording that the cicada cried in metal fluid, the characteristic sounds vibration that the cicada cried in this way can propagate in metal fluid, acoustical vibration more than selection low frequency component, observation is found, the acoustical vibration that the cicada cried is better able to generate scattering in propagation medium and dissipate, and can go out more ripples in metal fluid surface excitation.
Description
Technical field
The present invention relates to aluminum alloy smelting technical fields, are in particular bionical turbulent flow permanent magnetic stirring smelting processes.
Background technology
Aluminium alloy is common lightweight metal material, it is widely used in the industry such as automobile, ship, space flight, machinery, communication
In, it has the characteristics that good processing performance, light weight, energy saving.With the continuous development of auto industry, automotive light weight technology and the energy
The low consumed main trend for requiring to have become auto manufacturing, the aluminium alloy as lightweight material first is on automobile
Demand also constantly expands.Aluminum alloy spare part applied to automobile mostly uses greatly casting and forming, because casting adds relative to other
Work mode, rate of metal is high, and dimensional accuracy is high, can produce complex-shaped component, has excellent mechanical performance and object
Rationality energy.Current automobile engine, wheel rim etc. mostly use cast aluminium alloy gold and are manufactured, and advantageously account for dissipating in this way
Heat, can elongated component itself and the spare and accessory parts being in direct contact therewith service life, still, existing cast aluminium alloy gold by
In needing to add a variety of rare earth elements, the diffusivity of various elements during the addition process is also different, it is therefore desirable to use permanent magnetic stirring
It is mixed, in order to promote mixing efficiency, needs to develop a kind of method that can accelerate element mixing, obtain high-performance, even
The aluminum alloy materials of matter.
Invention content
The invention mainly solves the technical problem of providing it is a kind of can accelerate element mixing method, obtain high-performance,
Homogeneous aluminum alloy materials.
Bionical turbulent flow permanent magnetic stirring smelting process proposed by the present invention, including permanent magnetic stirring and the intermittent merging stream of sound source
Journey, permanent magnetic stirring and the intermittent merging flow of sound source include working cycles below:The first step of cycle：Permanent magnetic stirring is clockwise
Rotation, angular frequency w, the mixing time rotated clockwise are t1；The second step of cycle：Source emission head is put into smelting furnace,
Sound duration is t2, at this point, permanent magnetic stirring, which rotates clockwise angular frequency, is reduced to w/2；The third of cycle walks：Take out sound source hair
Head is penetrated, permanent magnetic stirring rotates counterclockwise, angular frequency w, mixing time t1, and permanent magnetic stirring stops；4th step of cycle：Smelting
Source emission head is put into furnace, sound duration t2 takes out source emission head；Then the first step of cycle is entered back into,
The sound that the inside of source emission head is sent out is the recording that the cicada cried, and the volume energy density of the sound is 500 watts to 1000 watts every
Cubic meter, the computational methods of the volume energy density of sound are total metal in the general power divided by smelting furnace of source emission head
The volume of fluid.
Preferably, above-mentioned working cycles are repeated 2 times above, complete stirring.
Preferably, the horizontal position that above-mentioned source emission head is placed is the symmetrical centre of smelting furnace, is put into metal fluid
12 centimetres of upright positions below below liquid level.
Preferably, above-mentioned angular frequency w is that 60-100 circles are per minute.
Preferably, above-mentioned mixing time t1 is 5 to 10 minutes.
Preferably, above-mentioned sound duration t2 is 5 to 10 minutes.
The present invention bionical turbulent flow permanent magnetic stirring smelting process operation principle and have the beneficial effect that：
It in the technology of the present invention, is put into metal fluid using the recording that the cicada cried, the characteristic sounds vibration that the cicada cried in this way
It is propagated in metal fluid, the acoustical vibration more than selection low frequency component, it has been observed that the acoustical vibration that the cicada cried more can
It is enough to generate scattering in propagation medium and dissipate, more ripples can be gone out in metal fluid surface excitation, to find out its cause, being logical
Cross bionics principle acquisition：Since cicada is lived in the leafiness thick forest of tree, the effect that the cicada cried is in order to attract the opposite sex, still
Natural enemy, such as birds can not be attracted again, since the sound of low frequency, long wavelength have propagation distance and cut-through object farther out
Good capacity, therefore, low-frequency sound intensity is very low in the sound spectrum that the cicada cried, and the cicada cried has selected high-frequency spectral, this is a kind of evolution
Selection as a result, the sound due to low frequency, long wavelength has propagation distance farther out, remote birds can be attracted to come
Predation is also easy to cause prey easily simultaneously because the sound of low frequency, long wavelength has the good capacity of cut-through object
Positioning, especially those birds with binaural, high-frequency spectral, the consumption of this feature high-frequency spectral have been selected so the cicada cried
It dissipates soon, is more than certain distance just and the ambient noise of forest is close, high-frequency spectral encounters barrier and is easy scattering, can thus allow
The cicada cried in the scattering of leaf and trunk, disperses the auditory localization that the cicada cried, and predator is allowed to hear that the cicada cried everywhere, it is difficult to determine
Ring the specific orientation of cicada, therefore, sound spectrum is as a result, the cicada cried a kind of excellent high scattering, fast shake of dissipating as natural selection
Dynamic wave spectrum.Height scattering, the fast vibrational spectrum that dissipates are exactly the technical parameter that alloy smelting mixing needs, first, fast shake of dissipating
Dynamic wave spectrum ensures that vibrational energy can be absorbed by metal fluid, generates the instability status in flowing, under identical Reynolds number,
Metal fluid is more prone to obtain the state of turbulent flow or the degree of turbulent flow is more chaotic, is conducive to metal fluid generation in this way
More vortex and sinuous flow, are conducive to the mixing of different elements, the especially mixing of the rare earth element of some intermiscibilities difference；Its
Secondary, the vibrational spectrum of height scattering is also advantageous that mix in element, due to simultaneously nonuniformity element in alloy liquid, different elements
Quality is different, light element such as aluminium, is more prone to transmit by displacement and vibrate, and the element such as rare earth element of weight, just
It is difficult to propagate by displacement and vibrate, these heavy elements will form scattering, cause to vibrate the phonon change direction of propagation, such sound
The momentum that son is applied to heavy element just will increase, and cause heavy element to obtain more vibrational energies, and heavy element is assembled
Place, can more become scattering center so that this aggregation of flutter failure of sound achievees the effect that dispersion.Due to rare earth member
Element is generally easy oxidation, is unable to hot soak condition, therefore shorten the permanent magnetic stirring time, and it is existing to increase element mixing velocity
For the development trend of smelting technique, the present invention is in method using bionical bionical, the turbulent flow journey during promotion permanent magnetic stirring
Degree, plays the mixed uniformly effect of short time interior element.
Specific implementation mode
Embodiment 1：
Bionical turbulent flow permanent magnetic stirring smelting process provided in this embodiment, including permanent magnetic stirring and the intermittent merging flow of sound source,
Permanent magnetic stirring and the intermittent merging flow of sound source include working cycles below:The first step of cycle：Permanent magnetic stirring turns clockwise
Dynamic, angular frequency w, the mixing time rotated clockwise is t1；The second step of cycle：Source emission head, sound are put into smelting furnace
The sound duration is t2, at this point, permanent magnetic stirring, which rotates clockwise angular frequency, is reduced to w/2；The third of cycle walks：Take out source emission
Head, permanent magnetic stirring rotate counterclockwise, angular frequency w, mixing time t1, and permanent magnetic stirring stops；4th step of cycle：It smelts
Source emission head is put into stove, sound duration t2 takes out source emission head；Then the first step of cycle, sound are entered back into
The sound that the inside of source emitting head is sent out is the recording that the cicada cried, and the volume energy density of the sound is 500 watts every cubic metre, sound
The computational methods of volume energy density be the volume of total metal fluid in the general power divided by smelting furnace of source emission head.
Working cycles are repeated 2 times, and complete stirring.The horizontal position that source emission head is placed is the symmetrical centre of smelting furnace, is put into metal
12 centimetres of upright positions below below fluid level.Angular frequency w is that 60 circles are per minute.Mixing time t1 is 5 minutes.Sound is held
Continuous time t2 is 10 minutes.
Embodiment 2：
Raw turbulent flow permanent magnetic stirring smelting process provided in this embodiment, including permanent magnetic stirring and the intermittent merging flow of sound source, forever
Magnetic stirs and the intermittent merging flow of sound source includes working cycles below:The first step of cycle：Permanent magnetic stirring rotates clockwise,
Angular frequency is w, and the mixing time rotated clockwise is t1；The second step of cycle：Source emission head is put into smelting furnace, sound is held
The continuous time is t2, at this point, permanent magnetic stirring, which rotates clockwise angular frequency, is reduced to w/2；The third of cycle walks：Source emission head is taken out,
Permanent magnetic stirring rotates counterclockwise, angular frequency w, mixing time t1, and permanent magnetic stirring stops；4th step of cycle：In smelting furnace
It is put into source emission head, sound duration t2 takes out source emission head；Then the first step of cycle, sound source hair are entered back into
It is the recording that the cicada cried to penetrate the sound that the inside of head is sent out, and the volume energy density of the sound is 1000 watts every cubic metre, sound
The computational methods of volume energy density are the volume of total metal fluid in the general power divided by smelting furnace of source emission head.Work
Make circulating repetition 2 times, completes stirring.The horizontal position that source emission head is placed is the symmetrical centre of smelting furnace, is put into metal stream
12 centimetres of upright positions below below body fluid face.Angular frequency w is that 90 circles are per minute.Mixing time t1 is 10 minutes.Sound is held
Continuous time t2 is 5 minutes.
The structure of source emission head in above-described embodiment is that refractory ceramics cylinder is put into high-temperature metal fluid, resistance to
The intermediate of refractory ceramics cylinder places loudspeaker, and loudspeaker surface covers cooling water pipe, has cooling water circulation cold inside cooling water pipe
But, it is constantly passed through fresh air by air blower to enter in refractory ceramics cylinder, keeps the air of refractory ceramics cylinder interior cold
But.
Although the present invention is disclosed as above with preferred embodiment, it is not limited to the present invention, any to be familiar with this
The people of technology can do various changes and modification, therefore the protection of the present invention without departing from the spirit and scope of the present invention
Range should be subject to what claims were defined.
Claims (6)
1. bionical turbulent flow permanent magnetic stirring smelting process, it is characterised in that：The bionical turbulent flow permanent magnetic stirring smelting process includes forever
Magnetic stirs and the intermittent merging flow of sound source, and the permanent magnetic stirring and the intermittent merging flow of sound source include that work below follows
Ring:The first step of cycle：Permanent magnetic stirring rotates clockwise, angular frequency w, and the mixing time rotated clockwise is t1；Cycle
Second step：Source emission head, sound duration t2, at this point, permanent magnetic stirring rotates clockwise angular frequency are put into smelting furnace
It is reduced to w/2；The third of cycle walks：Source emission head is taken out, permanent magnetic stirring rotates counterclockwise, angular frequency w, and mixing time is
T1, permanent magnetic stirring stop；4th step of cycle：Source emission head, sound duration t2, taking-up sound are put into smelting furnace
Source emitting head；Then the first step of cycle is entered back into, the sound that the inside of the source emission head is sent out is the recording that the cicada cried,
The volume energy density of the sound is 500 watts to 1000 watts every cubic metre, the calculating side of the volume energy density of the sound
Method is the volume of total metal fluid in the general power divided by smelting furnace of source emission head.
2. according to the bionical turbulent flow permanent magnetic stirring smelting process described in claim 1, which is characterized in that the working cycles
It is repeated 2 times above, completion stirring.
3. according to the bionical turbulent flow permanent magnetic stirring smelting process described in claim 1, which is characterized in that the source emission
The horizontal position that head is placed is the symmetrical centre of smelting furnace, is put into 12 centimetres of upright positions below below metal fluid liquid level.
4. according to the bionical turbulent flow permanent magnetic stirring smelting process described in claim 1, which is characterized in that the angular frequency w is
60-100 circles are per minute.
5. according to the bionical turbulent flow permanent magnetic stirring smelting process described in claim 1, which is characterized in that the mixing time
T1 is 5 to 10 minutes.
6. according to the bionical turbulent flow permanent magnetic stirring smelting process described in claim 1, which is characterized in that the sound go
Time t2 is 5 to 10 minutes.
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| CN201711065981.8A CN108559858A (en) | 2017-11-02 | 2017-11-02 | Bionical turbulent flow permanent magnetic stirring smelting process |
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Citations (9)
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|---|---|---|---|---|
| CN86104937A (en) * | 1986-08-04 | 1988-06-01 | 贵州工学院 | Subultrasonic fuel emulsifying magnetizing device |
| CN2302844Y (en) * | 1997-07-04 | 1999-01-06 | 杨忠秀 | High frequency magnetic field, super sonic resonance oil-water mixing treatment equipment |
| CN101020229A (en) * | 2007-03-19 | 2007-08-22 | 东北大学 | Vertical semi-continuous light alloy ingot casting process and apparatus with cooperation of power ultrasound wave and low frequency electromagnetic wave |
| CN101187051A (en) * | 2007-09-05 | 2008-05-28 | 上海工程技术大学 | Nano tungsten carbide and nano Teflon electric brush plating liquor preparation process and uses |
| CN101608277A (en) * | 2009-06-02 | 2009-12-23 | 大连理工大学 | A kind of electromagnetic/ultrasonic preparation method of in-situ particle reinforced magnesium-based composite material |
| CN104651644A (en) * | 2015-01-23 | 2015-05-27 | 安徽蛟龙科技有限公司 | Method for refining copper core wire grains |
| CN104911417A (en) * | 2015-06-30 | 2015-09-16 | 辽宁科技大学 | High-purity aluminum magnesium alloy plate ingot for mechanical hard disk, and production method thereof |
| CN205412858U (en) * | 2016-03-11 | 2016-08-03 | 上海源耀生物股份有限公司 | Take hyperacoustic magnetic stirrers |
| CN106475538A (en) * | 2016-10-28 | 2017-03-08 | 中南大学 | A kind of ultrasonic electromagnetic continuous casting method of steel alloy |
-
2017
- 2017-11-02 CN CN201711065981.8A patent/CN108559858A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104937A (en) * | 1986-08-04 | 1988-06-01 | 贵州工学院 | Subultrasonic fuel emulsifying magnetizing device |
| CN2302844Y (en) * | 1997-07-04 | 1999-01-06 | 杨忠秀 | High frequency magnetic field, super sonic resonance oil-water mixing treatment equipment |
| CN101020229A (en) * | 2007-03-19 | 2007-08-22 | 东北大学 | Vertical semi-continuous light alloy ingot casting process and apparatus with cooperation of power ultrasound wave and low frequency electromagnetic wave |
| CN101187051A (en) * | 2007-09-05 | 2008-05-28 | 上海工程技术大学 | Nano tungsten carbide and nano Teflon electric brush plating liquor preparation process and uses |
| CN101608277A (en) * | 2009-06-02 | 2009-12-23 | 大连理工大学 | A kind of electromagnetic/ultrasonic preparation method of in-situ particle reinforced magnesium-based composite material |
| CN104651644A (en) * | 2015-01-23 | 2015-05-27 | 安徽蛟龙科技有限公司 | Method for refining copper core wire grains |
| CN104911417A (en) * | 2015-06-30 | 2015-09-16 | 辽宁科技大学 | High-purity aluminum magnesium alloy plate ingot for mechanical hard disk, and production method thereof |
| CN205412858U (en) * | 2016-03-11 | 2016-08-03 | 上海源耀生物股份有限公司 | Take hyperacoustic magnetic stirrers |
| CN106475538A (en) * | 2016-10-28 | 2017-03-08 | 中南大学 | A kind of ultrasonic electromagnetic continuous casting method of steel alloy |
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Application publication date: 20180921 |
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