CN102198498A - Casting device and casting method - Google Patents
Casting device and casting method Download PDFInfo
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- CN102198498A CN102198498A CN2011100570196A CN201110057019A CN102198498A CN 102198498 A CN102198498 A CN 102198498A CN 2011100570196 A CN2011100570196 A CN 2011100570196A CN 201110057019 A CN201110057019 A CN 201110057019A CN 102198498 A CN102198498 A CN 102198498A
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Abstract
The invention provides a casting device and a casting method, wherein ultrasonic vibrations can be effectively applied on a molten liquid for manufacturing casting products by injecting the molten liquid of an alloy material into a mould cavity. In a casting device (1) for manufacturing casting products (Y), wherein the molten liquid (X) of an alloy material is injected into a mould (30) cavity (33), a mold member (push rod 37) in linkage with an ultrasonic vibration device (100) for operating ultrasonic vibrations is provided. The mold member (push rod 37) is part of the cavity (33), which contacts with the molten liquid inside the cavity (33) so as to apply ultrasonic vibrations on the molten liquid.
Description
Technical field
The cavity injection alloy material liquation that the present invention relates to the mould behind matched moulds is made the casting device and the casting method of die cast product.
Background technology
In the past, known aluminium in fusion is arranged was that casting alloy applies ultrasonic vibration when solidifying, and made the control method (for example, with reference to patent documentation 1) of the crystalline structure miniaturization of the primary crystal that generates in motlten metal.
Patent documentation 1:(Japan) spy opens the 2004-209487 communique
But, in the control method of in the past crystalline structure, the ultrasonic vibration horn of ultrasonic vibration apparatus is directly inserted liquation applies ultrasonic vibration.Therefore, be difficult to be applied to the cavity injection of the mould of liquation behind matched moulds of alloy material is made the casting device and the casting method of die cast product.
That is, in formation in the past,, ultrasonic vibration horn is inserted in the die cavity for the liquation in the die cavity that forms in the mould behind matched moulds is applied ultrasonic vibration.Therefore, because mold shape and die cavity shape can not be inserted described loudspeaker sometimes.
In addition, in formation in the past, need take out loudspeaker when the liquation in die cavity has flowability, therefore, it is complicated that the management of take-off time becomes, and the time that applies ultrasonic vibration shortens, and may not obtain sufficient tissue thinning effect.
Summary of the invention
The present invention proposes in view of the above problems, and its purpose is to provide a kind of casting device and casting method, when the die cavity of the mould after the alloy material liquation is injected to matched moulds is made die cast product, can apply ultrasonic vibration effectively to liquation.
For achieving the above object, casting device of the present invention, the cavity injection alloy material liquation of the mould behind matched moulds, make die cast product, it is characterized in that, the mold product are set, it is by carrying out ultrasonic vibration with the ultrasonic vibration apparatus interlock that ultrasonic vibration takes place, described mold product constitute the part of described die cavity, and contact with liquation in the described die cavity and apply ultrasonic vibration.
Therefore, in casting device of the present invention, carry out ultrasonic vibration owing to constitute the mold product of the part of die cavity, so the liquation in the die cavity is applied ultrasonic vibration.Therefore,, or in the die cavity of mould, inject in the casting device of alloy material liquation, also can apply ultrasonic vibration to liquation effectively even do not needing the liquation in die cavity to insert ultrasonic vibration horn.In addition, no matter how the flowability of the liquation in the die cavity can both apply ultrasonic vibration, therefore, can not shorten the vibration application time.
Like this, when the cavity injection alloy material liquation of the mould behind matched moulds is made die cast product, can apply ultrasonic vibration to liquation effectively.
Description of drawings
Fig. 1 is the overall structure figure of the casting device of expression embodiment 1;
Fig. 2 A is the key diagram of the casting method of expression embodiment 1, and (a) the expression liquation draws step, (b) expression liquation supplying step;
Fig. 2 B is the key diagram of the casting method of expression embodiment 1, (c) expression liquation implantation step, (d) expression liquation injecting step;
Fig. 2 C is the key diagram of the casting method of expression embodiment 1, (e) expression liquation coagulation step;
Fig. 2 D is the key diagram of the casting method of expression embodiment 1, (f) expression die sinking step, and (g) the expression goods are from the mould step;
Fig. 3 is the state diagram of aluminium-silicon alloys;
Fig. 4 is the figure of the relation property of expression dendrite size of die cast product and tensile strength;
Fig. 5 is the key diagram of the miniaturization state of expression dendrite, and (a) expression has generated the situation of a plurality of dendrite, (b) situation of the dendrite pulverizing of expression generation;
Fig. 6 (a) is that expression being encouraged to shake and stops the figure of back to the relation property of time of solidifying fully and dendrite size, (b) is the figure that represents apart from the relation property of the distance of loudspeaker and dendrite size;
Fig. 7 is the overall structure figure of the casting device of expression embodiment 2;
Fig. 8 is an example of the control chart that has of the vibration control portion of the casting device of embodiment 2, (a) is the control chart corresponding with melt temperature, (b) is the control chart corresponding with liquation viscosity;
Fig. 9 is the overall structure figure of the casting device of expression embodiment 3.
Symbol description:
1, casting device
2, keep stove
10, casting ladle
20, die casting tube
21, sleeve
21a, liquation supply port
22, plunger
22a, plunger sheet
22b, plunger rod
30, mould
31, fixed die
But 32 dynamic models
33, die cavity
34, cast gate
37, push rod (mold product)
100, ultrasonic vibration apparatus
101, ultrasonic vibration part
102, vibration control portion
X, liquation
Y, die cast product
The specific embodiment
Below, based on the embodiment of embodiment 1～embodiment 3 explanation casting devices of the present invention shown in the drawings and casting method.
[embodiment 1]
At first, formation is described.
Fig. 1 is the overall structure figure of the casting device of expression embodiment 1.
As shown in Figure 1, the casting device 1 of embodiment 1 is the lateral type die casting machine of along continuous straight runs injection liquation X, possesses: casting ladle 10, die casting tube 20, mould 30, ultrasonic vibration apparatus 100.
Casting ladle 10 is that liquation X is a certain amount of from keeping stove 2 (with reference to Fig. 2 A (a)) to draw with the motlten metal of alloy material, and the liquation supply port 21a that is transported to die casting tube 20 pours into a mould.Constituting of this casting ladle 10 after keeping stove 2 to draw liquation X, moves to the top of the liquation supply port 21a of die casting tube 20, angle of inclination and inchmeal liquation X being injected in the die casting tube 20.
In addition, alloy material is the aluminium alloy that contains silicon in the aluminium at this.In keeping stove 2, will contain of the state maintenance of the aluminium alloy of silicon with liquation X.
The liquation X that die casting tube 20 will inject from liquation supply port 21a applies high pressure and is pressed at mould 30, promptly injects.This die casting tube 20 has the plunger 22 in stationary sleeve 21, slip in sleeve 21 on the mould 30.
Sleeve 21 is the barrel shape of the hollow of both ends open, is formed with open upward liquation supply port 21a near the end of giving prominence to from mould 30.In addition, this sleeve 21 disposes in the mode that is communicated with the running channel 31a of portion described later of mould 30.
Plunger 22 has and chimeric plunger sheet 22a of sleeve 21 and the plunger rod 22b that this plunger sheet 22a is slided.At this, plunger rod 22b is by driving with hydraulic pressure or the electronic not shown injection cylinder that carries out expanding-contracting action, with plunger sheet 22a integratedly along the axial discrepancy of sleeve 21.
But mould 30 has fixed die 31 and dynamic model 32, but dynamic model 32 and fixed die 31 near and during matched moulds, the concavo-convex formation die cavity 33 and the cast gate 34 that form by composition surface at each mould 31,32.
Fixed die 31 is fixed in fixed disk 35.On this fixed disk 35, be formed with the through hole that inserts fixed muffle 21.And, on fixed die 31, be formed with the 31a of running channel portion that is communicated with cast gate 34 and sleeve 21.
But dynamic model 32 is fixed in respect on the fixed disk 35 approaching movable plates 36 that leave, and can move integratedly with movable plate 36.In addition, but on this dynamic model 32, be provided with a plurality of push rods 37.
Each push rod 37 is used to make the die cast product of making to die cavity 33 injection liquation X to separate from mould 30.But each push rod 37 connects dynamic model 32 respectively, and front end face 37a constitutes the part of die cavity 33 by this front end face 37a in die cavity 33.And the base end part 37b of each push rod 37 is fixed in the push pedal 38 of position of the opposition side of being located at die cavity 33.This push pedal 38 by driving mechanism 38a with respect to die cavity 33 carry out away from, near action, make a plurality of push rods 37 ... but together haunt from dynamic model 32.
That is, but be arranged at dynamic model 32 a plurality of push rods 37 ... for by carrying out the mold product of ultrasonic vibration with ultrasonic vibration apparatus 100 interlocks that ultrasonic vibration takes place.In addition, the front end face 37a of each push rod 37 becomes the vibration radiation face of radiate supersonic wave vibration.
In addition, at this, the ultrasonic vibration part 101 of ultrasonic vibration apparatus 100 is from beginning injection liquation X to die cavity 33 in, with this liquation X remain in more than the solidus temperature during time as maximum time, the generation ultrasonic vibration.At this moment, each push rod 37 carries out ultrasonic vibration by ultrasonic vibration part 101, therefore, and from beginning injection liquation X in die cavity 33, with this liquation X remain in more than the solidus temperature during time as maximum time, the liquation X in the die cavity 33 are applied ultrasonic vibration.That is, the melt temperature of vibration control portion 102 in detected die cavity 33 by not shown temperature sensor be more than the solidus temperature during, make ultrasonic vibration part 101 that ultrasonic vibrations take place and control.
Below, the casting method of embodiment 1 is described.
Fig. 2 A is the key diagram of the casting method of expression embodiment 1, and (a) the expression liquation draws step, (b) expression liquation supplying step.Fig. 2 B is the key diagram of the casting method of expression embodiment 1, (c) expression liquation implantation step, (d) expression liquation injecting step.Fig. 2 C is the key diagram of the casting method of expression embodiment 1, (e) expression liquation coagulation step.Fig. 2 D is the key diagram of the casting method of expression embodiment 1, (f) step of expression die sinking, and (g) the expression goods are from the mould step.
In the casting method of embodiment 1, but make the dynamic model 32 of mould 30 approaching in advance, form die cavity 33 and cast gate 34 on the composition surface of each mould 31,32 with fixed die 31.In addition, in keeping stove 2, store alloy material liquation X.
Draw in the step at liquation, shown in Fig. 2 A (a), casting ladle 10 tilted from level, dipping in keeping stove 2, to casting ladle 10 in, inject the liquation amount of necessity after, casting ladle 10 inclined again and tiltedly recover level, mention from maintenance stove 2.
In the liquation supplying step, shown in Fig. 2 A (b), remain under the state in the casting ladle 10 will drawing the liquation X that draws in the step at liquation, this casting ladle 10 is moved to the liquation supply port 21a top of die casting tube 20, carry liquation X.
In the liquation implantation step, shown in Fig. 2 B (c), the outlet 10a of casting ladle 10 is alignd with liquation supply port 21a, make in casting ladle 10 inclinations and the sleeve 21 liquation X injection die casting tube 20.After injecting the liquation X of ormal weight, casting ladle 10 is tilted again and recover level, move it the top that keeps stove 2, for cast is next time prepared.At this moment, plunger 22 retreats into the end position of sleeve 21.
In addition, this liquation implantation step is equivalent to and the injection process that liquation X is injected die casting tube 20.
In the liquation injecting step, shown in Fig. 2 B (d), after the cast in the liquation implantation step finishes,, advance at high speed with plunger sheet 22a with its binding at once by not shown injection cylinder drive plunger rod 22b.Thus, the liquation X in the sleeve 21 pass to the 31a of running channel portion, the cast gate 34 of fixed die 31 in order, by injection molding process to die cavity 33.
On the other hand, beginning simultaneously with this injection, the vibration control portion 102 of ultrasonic vibration apparatus 100 connects, and drives ultrasonic vibration part 101.Thus, connect push pedal 38 make together a plurality of push rods 37 ... vibrate, ultrasonic vibration amplified and radiation from the front end face 37a of each push rod 37.At this moment, each front end face 37a of each push rod 37 is in die cavity 33, and therefore, this front end face 37a contacts with liquation X in being injected in die cavity 33, and X applies ultrasonic vibration to this liquation.
In the liquation coagulation step, shown in Fig. 2 C (e), continue to drive ultrasonic vibration part 101, the front end face 37a from each push rod 37 ultrasonic vibration is amplified and the state of mode under the liquation X of matched moulds stipulated time in die cavity 33 solidify.In addition, ultrasonic vibration apparatus 100 stopped in the moment that is lower than the solidus temperature of alloy material by the detected melt temperature of not shown temperature sensor.
This liquation injecting step and liquation coagulation step are equivalent to while applying ultrasonic vibration, make the liquation X that injects at injection process inject and make it to solidify to make encouraging of the die cast product die casting manufacturing process of shaking in die cavity 33.
In the step of die sinking, shown in Fig. 2 D (f), but dynamic model 32 is moved in the mode of leaving from fixed die 31, carry out die sinking.At this moment, but the die cast product Y that forms but liquation X solidifies move with the state that connects airtight with dynamic model 32 sides and dynamic model 32.
In the step of mould, shown in Fig. 2 D (g), make push pedal 38 at goods to die cavity 33 side shiftings, a plurality of push rods 37 ... but together outstanding from dynamic model 32.Thus, but die cast product Y separate and discharge from dynamic model.
Below, illustration.
At first, carry out the explanation of " characteristic of die cast product ", then, the effect of the casting device of embodiment 1 is divided into " ultrasonic vibration applies effect ", " dendrite increase effect ", " dendrite fragmentation effect ", " characteristic action of casting method " describes.
[characteristic of die cast product]
Fig. 3 is the state diagram of aluminium-silicon alloys.Fig. 4 is the figure of the relation property of expression dendrite size of die cast product and tensile strength.Fig. 5 is the key diagram of the miniaturization state of expression dendrite, and (a) expression has generated the situation of a plurality of dendrite, (b) situation of the dendrite pulverizing of expression generation.Fig. 6 (a) is that expression being encouraged to shake and stops the figure of back to the relation property of time of solidifying fully and dendrite size, (b) is the figure that represents apart from the relation property of the distance of loudspeaker and dendrite size.
In Fig. 3, the Ta-C curve is a liquidus curve, and the D-C straight line is a solidus.In addition, aluminium-silicon alloys is liquid phase when liquidus temperature is above, is solid phase when solidus temperature is following, liquid phase and solid phase coexistence (solid-liquid coexisting phase) in the time of between liquidus temperature and solidus temperature.
Usually, being the tissue of the die cast product that constitutes of aluminium alloy alloy that not enough C is ordered by the silicon containing ratio is made of the dendrite crystallization of primary crystal α-Al solid solution (below, be called dendrite), eutectic.
The cooperation ratio of silicon is that the aluminium-silicon alloys of A% is more than the liquidus temperature at some a shown in Figure 3, is the state of so-called liquation X for liquid phase therefore.At this moment, dendrite and eutectic all do not generate.
And when temperature descended, some a descended gradually, begins to generate dendrite when being lower than liquidus temperature.And the dendrite of generation is grown up when alloy temperature reduces and is increased gradually.At this moment the crystallization of Sheng Chenging only is a dendrite.
Further descend in temperature, when point a is lower than solidus temperature, between dendrite, generate the eutectic of α-Al crystallization and Si crystallization.At this moment the crystallization of Sheng Chenging is an eutectic, and the growth of dendrite stops.
Like this, in aluminium alloy, generate dendrite at first, generate eutectic afterwards.Therefore, as long as the initial dendrite that generates is fine, the then eutectic miniaturization similarly that generates afterwards.That is the size of the crystal grain after, the decision of the size of dendrite is solidified.
At this, in die cast product, be well known that solidified structure (cast sturcture) is fine more, even more, mechanical performances such as product strength and toughness are high more.Therefore, the dendrite of the size of the crystal grain after decision is solidified is fine more, mechanical performance high more (with reference to Fig. 4).
In order to make this dendrite fine, the first, consider by increasing the generation number of dendrite, suppress the growth of each dendrite and make it keep little state (with reference to Fig. 5 (a)).In addition, the second, consider to dwindle dendrite size (with reference to Fig. 5 (b)) by the dendrite fragmentation that will generate.
In order to increase the generation number of dendrite, before dendrite generates, the liquation in the dendrite generation is not applied ultrasonic vibration, make the countless hole of generation in liquation.This hole promotes dendrite to generate.
In addition, for the dendrite fragmentation that will generate, the liquation after the dendrite generation is applied ultrasonic vibration, the vibration that ultrasonic vibration is brought passes to dendrite.With this vibration dendrite fragmentation is made it miniaturization.In addition, when the solidus temperature that generates eutectic is following, the dendrite after the fragmentation is disperseed, therefore, can not obtain crushing effect.
In addition, it is not permanent applying the vibrating effect that ultrasonic vibration brings.That is, stop after liquation applies ultrasonic vibration, consuming time up to the complete solidificating period of this liquation, proportional with the elapsed time, vibrating effect weakens, and the dendrite size of generation becomes big (with reference to Fig. 6 (a)).
In addition, the scope of the ultrasonic vibration transmission that discharges from loudspeaker in liquation is limited, and vibrating effect is near more good more apart from the distance of loudspeaker.That is, far away more apart from the distance of loudspeaker, the dendrite size big more (with reference to Fig. 6 (b)) that generates in the liquation.
[ultrasonic vibration applies effect]
In the casting device 1 of embodiment 1, be provided with a plurality of by with ultrasonic vibration apparatus 100 interlocks that ultrasonic vibration takes place carry out ultrasonic vibration the push rod that becomes the mold product 37 ..., these mold product (a plurality of push rod 37...) constitute the part of die cavity 33, and contact with liquation in the die cavity 33 and apply ultrasonic vibration.
Therefore, insert in the die cavity 33, apply ultrasonic vibration when also the liquation X in die cavity 33 solidifies even will not transmit the ultrasonic horn of ultrasonic vibration.That is, by by the mold product being the part that the front end face 37a of push rod 37 constitutes die cavity 33, thus, from the surface radiation ultrasonic vibration that die cavity 33 is divided.
Its result is no matter mold shape and die cavity shape how, can both be vibrated by radiate supersonic wave in die cavity 33.In addition, also need not to take out ultrasonic horn, therefore, do not need the management of loudspeaker take-off time,, can fully guarantee the ultrasonic wave application time even liquation X does not have flowability can apply ultrasonic vibration yet from liquation.
Especially, in the casting device 1 of embodiment 1, with push rod 37 that die cast product Y is separated from mould 30 as the mold product.Therefore, need on mould 30, not reset the mold product that constitute die cavity 33, simple structure.
[dendrite increase effect]
In the casting device 1 of embodiment 1, the push rod 37 that carries out ultrasonic vibration by ultrasonic vibration apparatus 100 is beginning vibration in die cavity 33 injection liquation X.
That is, in the casting device 1 of embodiment 1, to die cavity 33 injection and in die cavity 33 the liquation X of filling apply ultrasonic vibration.At this, near the value the temperature of the liquation X of die cavity 33 injection is liquidus temperature.Therefore, can generate the hole in a large number among the liquation X before dendrite generates.And before the hole disappeared, the temperature of liquation X became below the liquidus temperature, therefore, and the generation that can to promote with these a large amount of holes be a plurality of dendrite of nuclear.Its result, the growth of the dendrite that can suppress to generate and it is maintained little state can realize the miniaturization of crystalline structure.
[dendrite fragmentation effect]
In the casting device 1 of embodiment 1, utilize push rod 37 that ultrasonic vibration apparatus 100 carries out ultrasonic vibration to apply ultrasonic vibration during liquation X remains on more than the solidus temperature in injection in die cavity 33.
Therefore, even the temperature of the liquation X of injection reduces in die cavity 33, even near solidus temperature, that is, even under the state that generates a large amount of dendrite, also can from push rod 37 ... X applies ultrasonic vibration to liquation.Thus, can apply ultrasonic vibration to a plurality of dendrite that generate.And, after being broken, the dendrite that has applied ultrasonic vibration becomes finer crystallization, can realize the miniaturization of crystalline structure.
Especially in the manufacturing process of die cast product, the part that contacts with die cavity 33 among the liquation X is cooled off hastily, therefore, and the fine and close and hard chill in the easy formative tissue of the part that contacts with this die cavity 33.So,, can promote the miniaturization of crystalline structure even the chill that contacts with die cavity 33 and form near solidus temperature, by applying ultrasonic vibration, also can be destroyed, be peeled off to the temperature of liquation X.
In addition, liquation X rises if the time that will apply ultrasonic vibration is to begin to inject, melt temperature remain in more than the solidus temperature during be to set maximum time, then during the fragmentation that can carry out dendrite effectively, can apply ultrasonic vibration reliably.Therefore, can carry out the miniaturization of crystalline structure effectively, save energy.
[characteristic action of casting method]
In the casting method of embodiment 1, as mentioned above, while have and inject in die cavity 33 with the liquation X that applies ultrasonic vibration, will inject die casting tube 20 and it is solidified and make encouraging of die cast product shake die casting manufacturing process suitable liquation injecting step and liquation coagulation step.
Therefore, can encourage the liquation X before solidifying and shake, vibrating effect high during liquation X is solidified, can realize the miniaturization of crystalline structure.That is, can be serving as the generation that nuclear promotes dendrite by applying the hole that ultrasonic vibration generates.Its result can increase dendrite quantity, suppresses the growth of each dendrite, makes the crystalline structure miniaturization.
In addition, in the casting method of embodiment 1, from liquation X in die cavity 33 behind the start injection, this liquation X remain in more than the solidus temperature during, be continuously applied ultrasonic vibration.Thus, can apply ultrasonic vibration, can and make it miniaturization dendrite fragmentation to the dendrite that in liquation X, generates.
Below, description effect.
In the casting device and casting method of embodiment 1, can obtain the following effect of enumerating.
(1) a kind of casting device 1, the die cavity 33 injection alloy material liquation X of the mould 30 behind matched moulds, make die cast product Y, wherein, mold product (push rod 37) are set, it is by carrying out ultrasonic vibration with ultrasonic vibration apparatus 100 interlocks that ultrasonic vibration takes place, and above-mentioned mold product (push rod 37) constitute the part of above-mentioned die cavity 33, and contacts with the interior liquation of above-mentioned die cavity 33 and apply ultrasonic vibration.
Therefore, when the die cavity 33 injection of metallic material liquation X of the mould behind matched moulds 30 make die cast product Y, can apply ultrasonic vibration effectively to liquation X.
(2) above-mentioned mold product form the push rod 37 that the die cast product Y that will make separates from above-mentioned mould 30.
Therefore, on the basis of effect of above-mentioned (1) record, the unnecessary mold product that constitute die cavity 33 of resetting, no matter how mold shape and die cavity shape can both apply ultrasonic vibration with simple structure.
(3) above-mentioned mold product for from above-mentioned liquation in above-mentioned die cavity start injection, with this liquation remain in more than the solidus temperature during time be maximum time, apply the formation of ultrasonic vibration.
Therefore, on the basis of effect of above-mentioned (1) or (2) record, can promote the generation of a plurality of dendrite, and the further miniaturization that the dendrite fragmentation that generates can be organized.In addition, can only during the fragmentation of carrying out dendrite effectively, apply ultrasonic vibration, can carry out the miniaturization of crystalline structure effectively, save energy.
(4) a kind of casting method to mold injects alloy material liquation, is made die cast product, wherein, has: the injection process (Fig. 2 B (c)) that injects above-mentioned liquation X to die casting tube 20; Apply on one side ultrasonic vibration, on one side in die cavity the above-mentioned liquation of injection, make it to solidify and make encouraging of the die cast product die casting manufacturing process (Fig. 2 B (d), Fig. 2 C (e)) of shaking.
Therefore, can promote the generation of a plurality of dendrite, and, the further miniaturization that the dendrite fragmentation that generates can be organized.
(5) above-mentionedly encourage constituting of the die casting manufacturing process of shaking (Fig. 2 B (d), Fig. 2 C (e)), after to above-mentioned die cavity 33 in, injecting above-mentioned liquation X from beginning, during this liquation X remains in more than the solidus temperature, be continuously applied above-mentioned ultrasonic vibration.
Therefore, on the basis of effect of above-mentioned (4) record, can only during the fragmentation that can carry out dendrite effectively, apply ultrasonic vibration, can carry out the miniaturization of crystalline structure effectively, save energy.
[embodiment 2]
Among the embodiment 2, make a plurality of push rods 37 selectively carry out ultrasonic vibration according to the liquation parameter of representing the liquation state in the die cavity 33.
At first, formation is described.
Fig. 7 is the overall structure figure of the casting device of expression embodiment 2.
In the casting device 1A of this embodiment 2, a plurality of push rods 37 ... on be separately installed with ultrasonic vibration part 101, and each ultrasonic vibration part 101 is switched on/disconnects control (ON/OFF control) respectively by vibration control portion 102.
The detected value of the viscosity sensor 104 of the liquation viscosity in the detected value of the temperature sensor 103 of the melt temperature in vibration control portion 102 imports detection die cavity 33 respectively, the detection die cavity 33.
In addition, vibration control portion 102 has for example control chart shown in Fig. 8 (a) and (b), according to the liquation parameter of expression liquation state be temperature sensor 103 and viscosity sensor 104 detected value and selectively with a plurality of ultrasonic vibration parts 101 ... connect (ON), make a plurality of push rods 37 ... selectively carry out ultrasonic vibration.
That is, for this vibration control portion 102, if melt temperature between α～β, then with a plurality of ultrasonic vibration parts 101 ... in No.1～3 connect control, No.4 is disconnected control.Thus, only make the push rod 37 that No.1～3 ultrasonic vibration parts 101 are installed carry out ultrasonic vibration, can be only near the liquation X the front end face 37a of the push rod 37 of this vibration be applied ultrasonic vibration.
In addition, for this vibration control portion 102, if liquation viscosity is more than the α, then with a plurality of ultrasonic vibration parts 101 ... in No.2,3 connect control, No.1,4 is disconnected control.Thus, only make the push rod 37 that No.2,3 ultrasonic vibration parts 101 are installed carry out ultrasonic vibration, can be only near the liquation X the front end face 37a of the push rod 37 of this vibration be applied ultrasonic vibration.
In addition, liquation viscosity has the tendency that the dendrite generation is many more, viscosity is high more.Therefore, according to this liquation viscosity make a plurality of push rods 37 ... selectively carry out ultrasonic vibration and be meant, according to the state of the crystalline structure of liquation X make a plurality of push rods 37 ... selectively carry out ultrasonic vibration.
Below, description effect.
In the casting device 1A of embodiment 2, on the basis of the effect of above-mentioned (1)～(3), can access the following effect of enumerating.
(6) be provided with a plurality of above-mentioned mold product (push rod 37), above-mentioned ultrasonic vibration apparatus 100 selectively make according to the liquation parameter (melt temperature, liquation viscosity) of the liquation state of expression in the die cavity above-mentioned a plurality of mold product (a plurality of push rods 37 ...) carry out ultrasonic vibration.
Therefore, can selectively apply vibration, realize the raising of vibrating effect, save energy the part that needs carry out ultrasonic vibration.
[embodiment 3]
Among the embodiment 3, need the position position contacting of intensity among the die cast product Y that push rod 37 is arranged on and makes.
At first, formation is described.
Fig. 9 is the overall structure figure of the casting device of expression embodiment 3.
In the casting device 1B of this embodiment 3, with a plurality of push rods 37 ... corresponding with the position that needs higher mechanical property in the die cast product of making and be arranged among this casting device 1B.
Promptly, push rod is in order to be arranged at drip molding on the mould from mold separation, therefore, with easy pushing drip molding and to be located at the common practice of position of easy setting different, in the casting device 1B of embodiment 3, in the die cast product of making, need the position of higher mechanical property that the push rod 37 that carries out ultrasonic vibration is set.Therefore, apply effect, in die cast product, need the position of higher mechanical property to promote to generate a plurality of dendrite with the ultrasonic vibration of push rod 37, and, the dendrite fragmentation that generated can be made its miniaturization.
Below, description effect.
In the casting device 1B of embodiment 3, on the effect of above-mentioned (1)～(3), can access the following effect of enumerating.
(7) above-mentioned mold product (push rod 37) are arranged on and make the correspondence position that needs higher mechanical property position in the die cast product.
Therefore, can in die cast product, need the position of higher mechanical property promote to generate a plurality of dendrite, and, can make the dendrite fragmentation of generation and make its miniaturization, can improve the mechanical property of the part that needs high mechanical property reliably.
More than, based on embodiment 1～embodiment 3 casting device of the present invention and casting method have been described, but for concrete formation, have been not limited to these embodiment, only otherwise break away from the invention aim of each the claim item in the patent claimed range, the change that can design and append etc.
In embodiment 1～embodiment 3, casting device is formed the lateral type die casting machine of along continuous straight runs injection liquation X, but be not limited thereto, for example also can be the vertical die-casting machine of vertically injecting liquation X.
In addition, in the casting device of embodiment 1～embodiment 3, be the cold chamber die casting mode that keeps stove 2 to separate, but also can be the hot chamber diecasting mode that in the liquation that keeps stove, sinks to the die casting tube with die casting tube 20.
In addition, the alloy material as embodiment 1 is set at aluminium-silicon alloys, but is not limited thereto, and also can be various alloy for die casting such as magnesium alloy, kirsite, copper alloy.
Under above-mentioned arbitrary situation, the mold product of ultrasonic vibration are carried out in setting by the ultrasonic vibration apparatus that ultrasonic vibration takes place, constitute the part of die cavity by these mold product, and contact with liquation in the die cavity and apply ultrasonic vibration, thus, can make the die cast product of crystalline structure miniaturization.
And, in the casting device of embodiment 1～embodiment 3, with a plurality of push rods 37 ... be set at the mold product that carry out ultrasonic vibration, but but also can carry out ultrasonic vibration by for example making dynamic model integral body, the liquation in the die cavity is applied ultrasonic vibration.
Claims (7)
1. casting device, the cavity injection alloy material liquation of the mould behind matched moulds is made die cast product, it is characterized in that,
Be provided with the mold product, these mold product carry out ultrasonic vibration by the ultrasonic vibration apparatus interlock with the generation ultrasonic vibration,
Described mold product constitute the part of described die cavity, and contact with liquation in the described die cavity and apply ultrasonic vibration.
2. casting device as claimed in claim 1 is characterized in that,
Described mold product form the die cast product that will the make push rod from described mold separation.
3. casting device as claimed in claim 1 or 2 is characterized in that,
Described mold product from the beginning in described die cavity the injection described liquation, with this liquation remain in more than the solidus temperature during time as maximum time, apply ultrasonic vibration.
4. as each described casting device in the claim 1～3, it is characterized in that,
A plurality of described mold product are set, and described ultrasonic vibration apparatus makes described a plurality of mold product selectively carry out ultrasonic vibration according to the liquation parameter of representing the liquation state in the die cavity.
5. as each described casting device in the claim 1～3, it is characterized in that,
Described mold product are arranged on makes the correspondence position that needs higher mechanical property position in the die cast product.
6. a casting method to mold injects alloy material liquation, is made die cast product, it is characterized in that having:
Injection process injects described liquation to the die casting tube;
Encourage the die casting manufacturing process of shaking, the ultrasonic vibration of applying, and meanwhile in die cavity the described liquation of injection, it solidified and make die cast product.
7. casting method as claimed in claim 6 is characterized in that,
Described encourage shake die casting manufacturing process from the beginning in described die cavity the injection described liquation, this liquation remain in more than the solidus temperature during, be continuously applied described ultrasonic vibration.
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| JP068630/10 | 2010-03-24 | ||
| JP2010068630A JP5068835B2 (en) | 2010-03-24 | 2010-03-24 | Casting apparatus and casting method |
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| CN103056331A (en) * | 2013-01-31 | 2013-04-24 | 清华大学 | Die-casting die with ultrasonic probe assembly |
| CN103071777A (en) * | 2012-12-27 | 2013-05-01 | 南昌航空大学 | Supersonic vibration based vacuum counter-pressure casting device and air path system thereof |
| CN104001901A (en) * | 2014-05-30 | 2014-08-27 | 华南理工大学 | Large vibration force large amplitude vibrating squeeze casting method and casting device thereof |
| CN105813781A (en) * | 2013-12-06 | 2016-07-27 | 株式会社京浜 | Casting die device and casting method |
| CN105855519A (en) * | 2016-06-20 | 2016-08-17 | 河海大学 | High-temperature alloy mould and casting and demoulding method thereof |
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| CN103071777A (en) * | 2012-12-27 | 2013-05-01 | 南昌航空大学 | Supersonic vibration based vacuum counter-pressure casting device and air path system thereof |
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| CN106475531A (en) * | 2015-09-01 | 2017-03-08 | 通用汽车环球科技运作有限责任公司 | The degassing of shape casting aluminium alloy and microstructure refinement |
| CN105855519A (en) * | 2016-06-20 | 2016-08-17 | 河海大学 | High-temperature alloy mould and casting and demoulding method thereof |
| CN106424630A (en) * | 2016-08-19 | 2017-02-22 | 浙江大学 | Ultrasound-assisted semisolid die-casting molding device and method for complex thin-wall aluminum alloy pieces |
| CN106424630B (en) * | 2016-08-19 | 2019-01-18 | 浙江大学 | Complex thin-wall class Al-alloy parts ultrasonic wave added semisolid pressure casting molding machine and method |
Also Published As
| Publication number | Publication date |
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| JP5068835B2 (en) | 2012-11-07 |
| JP2011200881A (en) | 2011-10-13 |
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