CN106424567A - Composite electromagnetic pulse solidification structure treatment device and method for casting of ultralumin - Google Patents
Composite electromagnetic pulse solidification structure treatment device and method for casting of ultralumin Download PDFInfo
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- CN106424567A CN106424567A CN201610987372.7A CN201610987372A CN106424567A CN 106424567 A CN106424567 A CN 106424567A CN 201610987372 A CN201610987372 A CN 201610987372A CN 106424567 A CN106424567 A CN 106424567A
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- metal mold
- electromagnetic pulse
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/06—Permanent moulds for shaped castings
- B22C9/065—Cooling or heating equipment for moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/02—Use of electric or magnetic effects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a composite electromagnetic pulse solidification structure treatment device and method for casting of ultralumin. The treatment device comprises a metal mold, a side electromagnetic pulse device and a top electromagnetic pulse device, wherein an inner chamber of the metal mold is used for storing a melt; the sidewall of the metal mold comprises an outer layer and an inner layer; a water cooling cavity is formed between the outer layer and the inner layer; a cooling water inlet is formed in the bottom part of the water cooling cavity, and a cooling water outlet is formed in the top part of the water cooling cavity; the side electromagnetic pulse device is arranged at the outer wall of the metal mold; the top electromagnetic pulse device is positioned right above the inner chamber of the metal mold. According to the composite electromagnetic pulse solidification structure treatment device for casting of the ultralumin, electromagnetic energy can enter the melt to the maximum, so that the metal mold can be uniformly preheated, and the core structure of an ultra-thick casting can be uniformly thinned through the electromagnetic energy while the solidification supercooling degree of a casting blank is improved.
Description
Technical field
The present invention relates to a kind of casting method and casting device, more particularly to one kind can preheated metallic type and improvement castings
The superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of structure property and processing method.
Background technology
Superduralumin is one of aluminium alloy of current development potentiality maximum, as which has intensity equivalent to super-strength steel (height
Reach 680Mpa), and lightweight the features such as, be widely used in making aircraft skin, rib, undercarriage etc..But due to superhard
The casting original structure stability of aluminum is not high, Low Cycle Fatigue Strength difference the shortcomings of, greatly limit its making in special equipment
With.Superhard aluminum component is generally obtained by casting, and whether casting method and technique are appropriately directly connected to the quality of ingot quality.
Permanent mold casting has in integrated member production and is not required to moulding, heat conduction and recovery electric heating system is good, high precision, fineness
The features such as high, rate of metal is high, but its chilling action is big, the porosity is larger, complicated casting mold uneven microstructure, no deformability,
Breathability, to be also easy to produce the defects such as cold shut and misrun be a difficult problem urgently to be resolved hurrily at present.As the thermal resistance of cast iron is more much larger than copper,
So general continuous cast mold Cu crystallizer, makes molten metal quickly cool down, while Cu crystallizer can make aluminium casting size more
Become more meticulous.Ensure hot investment casting while, inside workpiece tissue, composition be also affect its stable mechanical property important because
Element.Degree of supercooling increase can effective crystal grain thinning, increase nucleation rate.It is passed through recirculated water in metal mold to ensure to force cooling, can
To be obviously improved ingot quality, if not preheated, during casting, casting mold is subject to strong thermal shock, and internal stress is doubled, while light casting
Easily there is cold shut phenomenon.Generally first metal mold is preheated for improving above-mentioned condition, conventional metals type pre-heating mean has：Combustion gas is pre-
Heat, electrical heating, heating furnace preheating etc., said method easily there is heating after temperature drop is big, heat uneven, preheating temperature is difficult to steady
Situations such as control, and heating the cold shut phenomenon of the uneven foundry goods strip for causing, to improve process by heat patching method very complicated,
The also excessive foundry goods center portion of thickness is changed greatly with quality of edges, there is tissue looseness, pore.
Content of the invention
The primary and foremost purpose of the present invention is to provide a kind of superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss, with solution
The problem that certainly above-mentioned prior art is present, which can make the electromagnetic energy in melt penetrate into maximization, in uniform preheated metallic type, carry
While high casting blank solidification degree of supercooling, formula process is compensated by electromagnetic energy to melt core structure, promote the special thickness foundry goods heart
Portion's structure refinement evenly, obtains high-quality, high accuracy ingot casting.
It is a further object of the present invention to provide a kind of processed using above-mentioned superhard aluminum casting composite electromagnetic pulse solidified structure
The method cast by device, the method can make the electromagnetic energy in melt penetrate into maximization, in uniform preheated metallic type, improve
While casting blank solidification degree of supercooling, formula process is compensated by electromagnetic energy to melt core structure, promote special thickness foundry goods center portion
Structure refinement evenly, obtains high-quality, high accuracy ingot casting.
For achieving the above object, the invention provides following scheme：A kind of superhard aluminum casting composite electromagnetic pulse solidification group
Processing meanss are knitted, including metal mold, edge electromagnetic pulse device, top electromagnetic pulse device, the inner chamber of the metal mold is used for
Melt is placed, the side wall of the metal mold includes outer layer and internal layer, between the outer layer and internal layer, form water-cooled cavity, the water
Cold cavity bottom is provided with cooling water inlet, top and is provided with coolant outlet, and the edge electromagnetic pulse device is arranged at the gold
Genotype outer wall, the top electromagnetic pulse device is located at directly over the inner chamber of the metal mold.
The superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention, wherein, the edge electromagnetic pulse dress
Put including edge coil, external iron core, the edge coil is wound on the outer layer of metal mold side wall, and adjacent two circles edge
Mutually insulated between coil, the external iron core sleeve outside the edge coil, per circle edge coil and metal mold side wall
Outer layer between and per mutually insulating between circle edge coil and the external iron core.
The superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention, wherein, the side wall of the metal mold
Outer layer, edge coil, cooling water inlet, it is connected to temperature sensor on coolant outlet.
The superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention, wherein, the metal mold work wall thickness
Degree H=D/50, D are the diameter (cm) of ingot casting melt in the metal mold.
The superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention, wherein, metal mold side wall interior
It is provided with layer and several fin is fixed with, the metal mold and the fin is all made of copper.
The superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention, wherein, described per circle edge coil with
Insulating ceramic fiber is set between the outer layer of metal mold side wall.
The superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention, wherein, the top electromagnetic pulse dress
Put including built-in iron core, top winding, shell, the top winding is wound in the built-in iron core, the top winding, built-in
Iron core is respectively positioned on the inside the shell, mutually insulated between top winding described in adjacent two circle, and the top winding is built-in with described
Mutually insulate between iron core and the shell.
The superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention, wherein, the edge coil, top line
Circle is all the tubular hollow copper coil of the helical for being turned to by high temperature lacquer envelope curve, and the hollow intracavity of the hollow copper coil is logical to be cooled down
Water, the edge coil, top winding are driven by the pulse power of same frequency.
The superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention, wherein, the diameter of the built-in iron core
Small end is near melt, and the end of the built-in iron core diameter small end is away from 10～20mm of bath surface.
The method for being cast using above-mentioned superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss, the method bag
Include following step：
(1) the edge electromagnetic pulse device, top electromagnetic pulse device are connected to the two poles of the earth of the pulse power,
The edge electromagnetic pulse device current pulse is made to produce pulsed magnetic field, the pulsed magnetic field is preheated to the metal mold
Process, pulse frequency control is in 15～55Hz, and current control is in 50～100A or so, and pulse duty factor is 20%；
(2) target temperature is reached while when casting metals liquid reaches cast temperature whne the metal mold, by the metal
Liquid is poured in the metal mold, after the melt in the metal mold reaches target preheating temperature, makes the top electromagnetic pulse
Device is passed through identical pulse current, and the magnetic field that the top electromagnetic pulse device, edge electromagnetic pulse device are produced is while make
For the melt, continue 1～5 minute action time；
(3) when below the melt cooling to solid liquid phase temperature, by the cooling water in the water-cooled cavity of the metal mold
Open, so that the melt is quickly cooled down, obtain foundry goods.
As the side wall of the metal mold of the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention is included outward
Layer and internal layer, form water-cooled cavity, and edge electromagnetic pulse device are located at metal mold outer wall, top electricity between outer layer and internal layer
Magnetic pulse device be located at metal mold inner chamber directly over, edge electromagnetic pulse device not only be used for heat metal mold but also for pulse at
Reason molten metal solidified structure, effectively reduces metal mold preheating cost and so that metal mold is preheated evenly, reduce and preheat because of metal mold
The uneven casting defect that brings, and extend metal mold service life, filled using edge electromagnetic pulse device, top electromagnetic pulse
The composite pulse for putting composition acts on melt, and the electromagnetic energy of composite pulse device compensates formula process to melt core structure,
Make melt core structure that the effect that crystal grain is uniformly refined is reached, obtain high-quality, high accuracy ingot casting.
In addition, electromagnetic pulse acts on metal mold, metal mold itself generation vortex flow internal is made, so as to reach the effect of heating
Really, metal mold homogeneous heating is made, and benefit temp effect is good, and can be easy to use with heating.
Further, in metal mold, fin is set, the area of dissipation of metal mold can be increased, increase metal bath degree of supercooling, then
Process in conjunction with electromagnetic pulse, it is possible to obtain the tissue of crystal grain more fine uniform, metal mold, fin are all made of copper, on the one hand
Hot investment casting requirement is can ensure that, on the other hand, the material behavior due to copper is satisfactory electrical conductivity, low magnetic conductivity, and which is well led
Electrically ensure vortex to be formed in metal mold, and then carry out sensing heating to which, but less to disturbing in magnetic field infiltration melt, protect
Card pulsed magnetic field is acted on to the magnetic energy of metal liquid, is increased penetration depth of the magnetic field to melt, is reached the effect of homogenization crystal grain.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing for using is needed to be briefly described, it should be apparent that, drawings in the following description are only some enforcements of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the entirety sectional view of the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention；
Fig. 2 is the top view of the metal mold of the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention；
Fig. 3 is the electromagnetic pulse waveform produced by the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention
Figure；
Fig. 4 is faradism fluxion in the metal mold of the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention
Value simulation calculates vectogram；
Fig. 5 is the sensing for producing in the melt in the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention
Magnetic vector figure；
Fig. 6 is the electromagnetic force of generation in the melt of the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention
Vectogram；
Fig. 7 is for metal mold in the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention to magnetic induction
Influence curve；
Fig. 8 is Distribution of Magnetic Field feelings in the melt of the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention
Condition；
Fig. 9 is for molten under the different current excitations of the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of the present invention
The impact of body indexing distribution；
Figure 10 is impact of the electromagnetic energy to critical Gibbs free energy；
Figure 11 is instantaneous magnetic energy production in solution under different electric currents；
Figure 12 is the ingot quality contrast for being obtained using electromagnetism preheated metallic type and non-preheated metallic type；
Figure 13 is the superduralumin 7A04 alloy grain thinning effect pair through pulse magnetic field treatment and without pulse magnetic field treatment
Than.
Description of reference numerals：Metal mold 11, edge electromagnetic pulse device 12, top electromagnetic pulse device 13, cooling water enter
Mouth 113, coolant outlet 114, edge coil 121, external iron core 122, fin 115, built-in iron core 131, top winding
132nd, shell 133.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Understandable for enabling the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings and concrete real
The present invention is further detailed explanation to apply mode.
The present invention provides a kind of superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss, as shown in figure 1, including gold
Genotype 11, edge electromagnetic pulse device 12, top electromagnetic pulse device 13, metal mold 11 is made of copper, and metal mold 11 works wall
Thickness H=D/50, D are the diameter (cm) of ingot casting melt in metal mold 11, on the one hand can ensure that precision using copper metal mold
Casting is required, on the other hand, as the material behavior of copper is satisfactory electrical conductivity, low magnetic conductivity, its satisfactory electrical conductivity ensures in gold
Vortex is formed in genotype, and then carries out sensing heating to which, but less to disturbing in magnetic field infiltration melt, it is ensured that pulsed magnetic field pair
The magnetic energy effect of metal liquid, increases penetration depth of the magnetic field to melt, reaches the effect of homogenization crystal grain, while metal mold 11
Thickness increase can be further ensured that heats；The inner chamber 111 of metal mold 11 is used for placing melt, the side wall bag of metal mold 11
Include outer layer and internal layer, between outer layer and internal layer, form water-cooled cavity 112,112 bottom of water-cooled cavity be provided with cooling water inlet 113,
Top is provided with coolant outlet 114, and cooling water inlet 113, coolant outlet 114 are all connected to cooling water source, so that cooling water is existed
112 interior circulation of water-cooled cavity, edge electromagnetic pulse device 12 is arranged at 11 outer wall of metal mold, and top electromagnetic pulse device 13 is located at
Directly over the inner chamber 111 of metal mold 11.
Edge electromagnetic pulse device 12 includes edge coil 121, external iron core 122, and external iron core 122 is by ferrimagnet
Process, iron core wall thickness is that 5～20mm, edge coil 121 is wound on the outer layer of 11 side wall of metal mold, and adjacent two circles edge
Mutually insulated between coil 121, external iron core 122 is enclosed within outside edge coil 121, per circle edge coil 121 and 11 side of metal mold
Mutually insulate between the outer layer of wall and between every circle edge coil 121 and external iron core 122.
Temperature sensor is connected on the outer layer of the side wall of metal mold 11, edge coil 121, for showing work temperature
Degree, is connected to temperature sensor on cooling water inlet 113, coolant outlet 114, to calculate hot-fluid purpose, control knot
Brilliant temperature.
Be fixed with several fin 115 being made of copper on the internal layer of 11 side wall of metal mold, adjacent two fin 115 it
Between spacing equal.
It is all provided between the outer layer of edge coil 121 and 11 side wall of metal mold and between edge coil 121 and external iron core 122
Insulating ceramic fiber is put, for heat-insulated, insulation, insulation.
Top electromagnetic pulse device 13 includes built-in iron core 131, top winding 132, shell 133, built-in iron core 131 be
The T-shaped solid cylinder structure that magnetic material is processed, top winding 132 is wound in built-in iron core 131, top winding 132, interior
Put iron core 131 to be respectively positioned in shell 133, mutually insulated between adjacent two circles top winding 132, top winding 132 and built-in ferrum
All by insulating ceramic fiber mutually insulated between core 131 and shell 133.
Above-mentioned edge coil 121, top winding 132 are hollow copper coil, and hollow copper coil is by high temperature enamel-covered wire coiling
Become helical tubular, driven by the pulse power, it is ensured that magnetomotive force Fm=NI=7000A, load pulses waveform is using zig-zag point
End pulse current, frequency is less than 55Hz, is documented, makes the induced field of melt center portion reach 1000Gs, you can to reach good
Good structure property index, edge electromagnetic pulse processing meanss use pulse current 100A, spread all over 5 layers of coil winding, per layer 14
Circle, 70 circle altogether, hollow intracavity leads to cooling water, and the absolute distance between the side wall of edge coil 121 and metal mold 11 is maintained at
Between 10～100mm, larger magnetic loss is easily caused away from too far away, distance is closely an impediment to very much cooling water circulation in metal mold 11；
Electromagnetic pulse processing meanss in top use pulse current 100A, 7 layers of 132 coiling of top winding, per layer of 6 circle, altogether 42 circle, top
Electromagnetic pulse device is located at directly over melt, and the diameter small end of built-in iron core 131 is near melt, away from bath surface 10～
20mm, is relatively large in diameter end away from melt.
Using the superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss casting 7A04 extra super duralumin alloy of the present invention
Method, including following processes：
(1) the two poles of the earth of the pulse power are connected to the two ends of above-mentioned edge coil 121, top winding 132, and
The hollow intracavity connection cooling water of edge coil 121, top winding 132 is made, makes 121 current pulse of edge coil, edge line
The external iron core 122 of 121 excitation of circle produces pulsed magnetic field, starts to carry out metal mold 11 the pre-heat treatment, and pulse frequency controls 15
～55Hz, current control can effectively improve work efficiency in 50～100A or so, and its pulse output is as shown in figure 3, duty cycle alpha T
20～50% are set to,
(2) when metal mold 11 reaches target temperature while 7A04 extra super duralumin alloy reaches cast temperature, (degree of superheat is higher than
100 DEG C), metal bath is poured into, after target preheating temperature to be achieved, after adjusting appropriate crystal grain refinement pulse power parameters, is made
132 current pulse of top winding, the magnetic field that top electromagnetic pulse device 13, edge electromagnetic pulse device 12 is produced is while act on
Inside melt, continue 1～5 minute action time, the solidified structure crystal grain refinement generation effect to melt,
(3), when below the melt cooling to solid liquid phase temperature, the cooling water in 11 water-cooled cavity 112 of metal mold is opened, and is made
Melt is quickly cooled down, and the quality versus of ingot casting are as shown in figure 12, and the defect of the become ingot casting of the metal mold after preheating is less, through pulse
Magnetic field is processed and as shown in figure 13 without the grain refining effect contrast of the 7A04 extra super duralumin alloy of pulse magnetic field treatment, through pulse
The crystal grain refinement of the 7A04 extra super duralumin alloy that magnetic field is processed is evenly.
When being illustrated in figure 4 edge electromagnetic pulse 12 preheated metallic type 11 of device, the work wall of metal mold 11 and edge line
Electric current density figure (the unit of circle 121：A), when this figure shows edge coil 121 for 70 circles (5 × 14 circle), 100A electric current, frequency
The electric current density of 15Hz, it is seen that metal mold made of copper 11 work wall induced currents in opposite direction with loading current, have electric current and
Joule heat can be produced.
It is illustrated in figure 5 metal mold 11 to preheat and pour into melt, when carrying out electromagnetic pulse process to melt, the magnetic in melt
Induction (unit：T).Early-stage Study result is confirmed to need magnetic induction to reach 0.1T (1000Gs) i.e. to crystal grain refinement
And even tissue has good effect, the magnetic induction that the inventive method acts on melt center portion is larger, and edge is less, permissible
The little problem of melt center portion degree of supercooling is supplemented, reaches ideal design index.
Be illustrated in figure 6 to melt carry out electromagnetic pulse process when, the distribution of electromagnetic force (unit in melt：N).In magnetic energy
On the basis of infiltration, the electromagnetic force for pointing to center portion being produced to crystal grain, squeezing action is applied to melt crystal grain, limits its row of growing up
For with good Grain Refinement Effect.Be illustrated in figure 7 with metal mold and the magnetic induction that is surveyed without metal mold with
The situation of change of electric current, it is found that metal mold has to magnetic induction and slightly decay, but be not enough to affect the pulse to inner melt
Function influence, so magnetic field impulse normally can be realized.
Fig. 8～Figure 11 is to carry out the reason of pulse magnetic field treatment Grain Refinement for the ingot casting of φ 60 and big cross section
By foundation, Fig. 8 changes according to the melt radial magnetic field profile under different exciting currents, by magnetic fluctuation and steady situation, by magnetic
Field is roughly divided into edge induced field and center portion induced field.Edge group mainly produces heterogeneous forming core by dendrite fragmentation, while root
According to Fig. 9 temperature distribution history by controlling cooling water inflow controlling degree of supercooling, temperature curve by temperature sensor measurement, so
Edging tissue reaches crystal grain refinement and is relatively easy to.But core structure degree of supercooling is less, and electromagnetic force is also less, it is extremely difficult to refine mesh
's.According to Figure 10, in relatively low degree of supercooling, electromagnetic energy reduces to homogeneous nucleation, critical nuclei, Gibbs free energy nucleating work
Measure to reach grain refining effect, in figure shows, degree of supercooling is within 5 DEG C, and 100A pulsed magnetic field can increase nucleation rate substantially,
To make up the shortcoming of degree of supercooling deficiency, so in order to reach uniform thinning effect, Fig. 9 Temperature Distribution and Figure 10 comprehensively should be examined
Consider, i.e., cooling water inflow and magnetic field mechanism electric current should mate.And Figure 11 is the electromagnetic energy total amount that exciting current is produced.And metal mold
Interior logical cooling water cooling primarily to offset melt solidification when decrease of the sensing heating to metal mold degree of supercooling, while controlling
Cold degree.
Apply specific case in the present invention to be set forth the principle of the present invention and embodiment, above example
Illustrate that being only intended to help understands the method for the present invention and its core concept；Simultaneously for one of ordinary skill in the art, according to
According to the thought of the present invention, all will change in specific embodiments and applications.In sum, this specification content
Should not be construed as limiting the invention.
Claims (10)
1. a kind of superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss, it is characterised in that：Including metal mold (11), side
Portion's electromagnetic pulse device (12), top electromagnetic pulse device (13), the inner chamber (111) of metal mold (11) is molten for placing
Body, the side wall of metal mold (11) includes outer layer and internal layer, forms water-cooled cavity (112), institute between the outer layer and internal layer
State water-cooled cavity (112) bottom and be provided with cooling water inlet (113), top and be provided with coolant outlet (114), the edge electromagnetism arteries and veins
Flushing device (12) is arranged at the metal mold (11) outer wall, and described top electromagnetic pulse device (13) are located at metal mold (11)
Inner chamber (111) directly over.
2. superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss according to claim 1, it is characterised in that：Institute
Stating edge electromagnetic pulse device (12) includes edge coil (121), external iron core (122), and edge coil (121) are wound on institute
State mutually insulated between the outer layer of metal mold (11) side wall, and adjacent two circles edge coil (121), the external iron core
(122) edge coil (121) are enclosed within outward, per between circle edge coil (121) and the outer layer of the metal mold (11) side wall
And often mutually insulate between circle edge coil (121) and external iron core (122).
3. superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss according to claim 2, it is characterised in that：Institute
State the outer layer of the side wall of metal mold (11), edge coil (121), cooling water inlet (113), coolant outlet (114) upper respectively
It is connected with temperature sensor.
4. superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss according to claim 1, it is characterised in that：Institute
State the diameter (cm) of metal mold (11) work wall thickness H=D/50, D for metal mold (11) interior ingot casting melt.
5. superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss according to claim 1, it is characterised in that：Institute
It is provided with the internal layer for stating metal mold (11) side wall and several fin (115) is fixed with, metal mold (11) and described scattered
Backing (115) is all made of copper.
6. superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss according to claim 2, it is characterised in that：Institute
State setting insulating ceramic fiber between every circle edge coil (121) and the outer layer of the metal mold (11) side wall.
7. superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss according to claim 2, it is characterised in that：Institute
Stating top electromagnetic pulse device (13) includes built-in iron core (131), top winding (132), shell (133), the top winding
(132) it is wound in the built-in iron core (131), top winding (132), built-in iron core (131) are respectively positioned on the shell
(133) in, mutually insulated between top winding (132), top winding (132) and the built-in iron core described in adjacent two circle
(131) and mutually insulate between the shell (133).
8. superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss according to claim 7, it is characterised in that：Institute
It is all the tubular hollow copper coil of the helical for being turned to by high temperature lacquer envelope curve to state edge coil (121), top winding (132), described
The hollow intracavity of hollow copper coil leads to cooling water, and edge coil (121), top winding (132) are by the pulse of same frequency
Power drives.
9. superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss according to claim 7, it is characterised in that：Institute
The diameter small end of built-in iron core (131) is stated near melt, the end of built-in iron core (131) diameter small end is away from melt table
10～20mm of face.
10. cast using the arbitrary described superhard aluminum casting composite electromagnetic pulse solidified structure processing meanss of claim 1-9
The method that makes, it is characterised in that the method comprises the steps：
(1) edge electromagnetic pulse device (12), top electromagnetic pulse device (13) are connected to the two of the pulse power
Pole, makes edge electromagnetic pulse device (12) current pulse produce pulsed magnetic field, and the pulsed magnetic field is to the metal mold
(11) the pre-heat treatment is carried out, and pulse frequency controls in 15～55Hz, and current control in 50～100A or so, pulse duty factor is
20%；
(2) target temperature is reached while when casting metals liquid reaches cast temperature whne the metal mold (11), by the metal
Liquid is poured in the metal mold (11), after the melt in the metal mold (11) reaches target preheating temperature, makes the top
Electromagnetic pulse device (13) is passed through identical pulse current, top electromagnetic pulse device (13), edge electromagnetic pulse device
(12) magnetic field for producing simultaneously acts on the melt, continues 1～5 minute action time；
(3) when below the melt cooling to solid liquid phase temperature, by the water-cooled cavity (112) of the metal mold (11)
Cooling water is opened, and so that the melt is quickly cooled down, is obtained foundry goods.
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| CN108436047A (en) * | 2018-04-23 | 2018-08-24 | 东北大学 | Resultant field prepares the device and method of big specification fine grain homogeneous aluminium alloy cast ingot |
| CN108672656A (en) * | 2018-08-08 | 2018-10-19 | 溧阳市新力机械铸造有限公司 | A kind of casting method of turbo blade casting device and turbo blade |
| CN109482844A (en) * | 2019-01-02 | 2019-03-19 | 江苏大学 | Complex precise casting fine grain casting device and method |
| CN117047076A (en) * | 2023-07-06 | 2023-11-14 | 北京三航极材精细制造技术研究院有限公司 | Electromagnetic energy casting system for 20Kg vacuum smelting furnace |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107762A (en) * | 1994-03-01 | 1995-09-06 | 冶金工业部重庆钢铁设计研究院 | Method and equipment for exciting solidification of metal |
| US6354360B1 (en) * | 1998-09-22 | 2002-03-12 | Ulrich Betz | Device for directional solidification of a fused metal which has been poured into a moulding shell and a process for this purpose |
| CN101176913A (en) * | 2007-12-05 | 2008-05-14 | 中冶京诚工程技术有限公司 | Macrotype metal mold system for recovering thermal energy by cooling water |
| CN101708531A (en) * | 2009-09-23 | 2010-05-19 | 清华大学 | Method for improving fluidity of alloy melt and rotating electromagnetic field generation device |
| CN102397988A (en) * | 2011-12-07 | 2012-04-04 | 常熟市东涛金属复合材料有限公司 | Composite metal mould |
| CN102861878A (en) * | 2012-10-12 | 2013-01-09 | 胡兵 | Induction heating method and induction heating device universally used in iron section cladding sand cast production line |
| CN202861325U (en) * | 2012-10-12 | 2013-04-10 | 胡兵 | Universal induction heating device for iron mould sand coated casting production line |
| CN203679181U (en) * | 2013-12-31 | 2014-07-02 | 烟台万隆真空冶金股份有限公司 | Radiating fin for metal casting mold and metal casting mold |
| CN103962532A (en) * | 2013-12-09 | 2014-08-06 | 上海大学 | Method for refining metal solidification structure through complex pulse magnetic oscillation |
| CN104107880A (en) * | 2014-04-13 | 2014-10-22 | 天长市铸缘铸造机械科技有限公司 | Aluminum alloy electromagnetic metal shell mold casting process |
| CN206139790U (en) * | 2016-11-10 | 2017-05-03 | 内蒙古科技大学 | Compound electromagnetic pulse solidification structure processing apparatus of super duralumin casting |
-
2016
- 2016-11-10 CN CN201610987372.7A patent/CN106424567B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107762A (en) * | 1994-03-01 | 1995-09-06 | 冶金工业部重庆钢铁设计研究院 | Method and equipment for exciting solidification of metal |
| US6354360B1 (en) * | 1998-09-22 | 2002-03-12 | Ulrich Betz | Device for directional solidification of a fused metal which has been poured into a moulding shell and a process for this purpose |
| CN101176913A (en) * | 2007-12-05 | 2008-05-14 | 中冶京诚工程技术有限公司 | Macrotype metal mold system for recovering thermal energy by cooling water |
| CN101708531A (en) * | 2009-09-23 | 2010-05-19 | 清华大学 | Method for improving fluidity of alloy melt and rotating electromagnetic field generation device |
| CN102397988A (en) * | 2011-12-07 | 2012-04-04 | 常熟市东涛金属复合材料有限公司 | Composite metal mould |
| CN102861878A (en) * | 2012-10-12 | 2013-01-09 | 胡兵 | Induction heating method and induction heating device universally used in iron section cladding sand cast production line |
| CN202861325U (en) * | 2012-10-12 | 2013-04-10 | 胡兵 | Universal induction heating device for iron mould sand coated casting production line |
| CN103962532A (en) * | 2013-12-09 | 2014-08-06 | 上海大学 | Method for refining metal solidification structure through complex pulse magnetic oscillation |
| CN203679181U (en) * | 2013-12-31 | 2014-07-02 | 烟台万隆真空冶金股份有限公司 | Radiating fin for metal casting mold and metal casting mold |
| CN104107880A (en) * | 2014-04-13 | 2014-10-22 | 天长市铸缘铸造机械科技有限公司 | Aluminum alloy electromagnetic metal shell mold casting process |
| CN206139790U (en) * | 2016-11-10 | 2017-05-03 | 内蒙古科技大学 | Compound electromagnetic pulse solidification structure processing apparatus of super duralumin casting |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273972A (en) * | 2018-03-13 | 2018-07-13 | 内蒙古科技大学 | A kind of device and method of electromagnetic energy crystal grain refinement |
| CN108436047A (en) * | 2018-04-23 | 2018-08-24 | 东北大学 | Resultant field prepares the device and method of big specification fine grain homogeneous aluminium alloy cast ingot |
| CN108436047B (en) * | 2018-04-23 | 2019-09-10 | 东北大学 | Resultant field prepares the device and method of big specification fine grain homogeneous aluminium alloy cast ingot |
| CN108672656A (en) * | 2018-08-08 | 2018-10-19 | 溧阳市新力机械铸造有限公司 | A kind of casting method of turbo blade casting device and turbo blade |
| CN109482844A (en) * | 2019-01-02 | 2019-03-19 | 江苏大学 | Complex precise casting fine grain casting device and method |
| CN117047076A (en) * | 2023-07-06 | 2023-11-14 | 北京三航极材精细制造技术研究院有限公司 | Electromagnetic energy casting system for 20Kg vacuum smelting furnace |
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