CN102198500A - Casting device and casting method - Google Patents
Casting device and casting method Download PDFInfo
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- CN102198500A CN102198500A CN201110071326XA CN201110071326A CN102198500A CN 102198500 A CN102198500 A CN 102198500A CN 201110071326X A CN201110071326X A CN 201110071326XA CN 201110071326 A CN201110071326 A CN 201110071326A CN 102198500 A CN102198500 A CN 102198500A
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Abstract
The invention provides a casting device and a casting method capable of fully giving ultrasonic vibration effect to melt (X) injected to a casting cylinder (20). A casting device (1) is provided with a casting ladle (10), which transports the melt (X) made of alloy materials from a melting furnace (2) to the casting cylinder (20) and inject the melt into the casting cylinder (20), in the casting device (1), the casting ladle (10) is provided with an ultrasonic vibration device (100), which is provided with an ultrasonic vibration member (101) generating ultrasonic vibration, an ultrasonic vibration horn (103) amplifying vibration from the ultrasonic vibration member (101) and performing radiation, the ultrasonic vibration horn (103) applies ultrasonic vibration upon the melt (melt X' in the casting ladle) drawn in the casting ladle (10).
Description
Technical field
The present invention relates to a kind ofly possess the liquation of alloy material from calciner or keep stove to carry and the casting device and the casting method of the casting ladle that injects to the die casting tube.
Background technology
In the past, known had a following casting method, promptly, when the die cavity that is pressed into mould by the liquation with alloy material is made die cast product, before liquation is lower than liquidus temperature, this liquation is applied ultrasonic vibration, then, make liquation solidify (for example, with reference to patent documentation 1).
Patent documentation 1: TOHKEMY 2007-216239 communique
But, in existing casting method,, liquation is applied ultrasonic vibration by vibration generating arrangement being set alloy material being remained on the calciner more than the liquidus temperature and make liquation flow into raceway groove the mould, casting ladle etc. from calciner.
But, the vibrating effect of vibration generating arrangement can only give loudspeaker the vibration radiation face around.Therefore, in calciner, be provided with under the situation of vibration generating arrangement, can not give vibrating effect, be difficult to the liquation that the micronized effect of tissue is high and inject the die casting tube the liquation integral body in the calciner.In addition, even be provided with in raceway groove or casting ladle under the situation of vibration generating arrangement, concrete loudspeaker installation site is also indeterminate, and it is doubtful whether can to give sufficient vibrating effect to liquation.
Summary of the invention
The present invention has the problems referred to above in mind and proposes, and its purpose is to provide a kind of casting device and the casting method that can give sufficient ultrasonic vibration effect to the liquation that is injected into the die casting tube.
To achieve these goals, the invention provides a kind of casting device, it has casting ladle, this casting ladle with the liquation of alloy material from calciner or keep stove to be transported to the die casting tube and inject wherein, it is characterized in that, described casting ladle has ultrasonic vibration apparatus, this ultrasonic vibration apparatus has the ultrasonic vibration part that produces ultrasonic vibration, will amplify and the ultrasonic vibration horn of radiation from the vibration of this ultrasonic vibration part, and described ultrasonic vibration horn applies ultrasonic vibration to the liquation that is drawn in the described casting ladle.
Thus, in casting device of the present invention,, the liquation that is drawn in the casting ladle is applied ultrasonic vibration by amplifying the also ultrasonic horn of radiation from the vibration of the ultrasonic vibration part that casting ladle had.Like this,, therefore can apply ultrasonic vibration, can give sufficient vibrating effect liquation to the more a spot of liquation that is drawn in the casting ladle owing in casting ladle, be provided with the ultrasonic horn that liquation is applied ultrasonic vibration.
That is, the vibrating effect scope of giving that ultrasonic vibration horn produces only is defined as the situation on every side of loudspeaker leading section, and is relative therewith, and the liquation in calciner or the maintenance stove is a large amount of.Therefore, even in calciner or maintenance stove, insert ultrasonic vibration horn, can not give vibrating effect effectively, and the liquation that is drawn in the casting ladle is more a small amount of, can give the vibrating effect of ultrasonic vibration horn fully.
Description of drawings
Fig. 1 is the overall structure figure of the casting device of expression embodiment 1;
Fig. 2 is the profile of casting ladle of the casting device of expression embodiment 1;
Fig. 3 A is the key diagram of the casting method among the expression embodiment 1, and (a) the expression liquation draws step;
Fig. 3 B is the key diagram of the casting method among the expression embodiment 1, (b) expression liquation supplying step, (c) expression liquation implantation step;
Fig. 3 C is the key diagram of the casting method among the expression embodiment 1, (d) expression liquation injecting step, (e) expression liquation coagulation step;
Fig. 3 D is the key diagram of the casting method among the expression embodiment 1, (f) expression die sinking step, (g) expression goods demoulding step;
Fig. 4 is the A portion enlarged drawing among Fig. 3 B (c);
Fig. 5 is the state diagram of aluminium-silicon alloys;
Fig. 6 is the dendrite size of expression in the die cast product and the figure of the relation property of tensile strength;
Fig. 7 is the key diagram of the miniaturization state of expression dendrite, and (a) expression has generated the situation of a large amount of dendrite, the situation after (b) dendrite that is generated is pulverized in expression;
Fig. 8 (a) is that expression stops the figure of back to the relation property of time of solidifying fully and dendrite size from encouraging to shake, and (b) is expression apart from the figure of the relation property of the distance of loudspeaker and dendrite size;
Fig. 9 (a) is the profile of casting ladle of the casting device of expression embodiment 2, (b) is the key diagram of expression liquation draw state;
Figure 10 is the profile of casting ladle of the casting device of expression embodiment 3.
Symbol description
1: casting device
2: calciner (calciner or maintenance stove)
10: casting ladle
11: container portions
11a: flange (upper flange)
11f: bottom surface
12: vavuum pump (drawdown pump)
13: air force feed distributor
14: the liquation communication port
14a: interior side opening
14b: outer openings
15: ball (check-valves)
20: the die casting tube
21: sleeve
21a: liquation supply port
22: plunger
22a: plunger sheet
22b: plunger rod
23: the casting ladle guide
23b: outlet
23c: valve opening projection
23d: support shelves
30: mould
31: fixed die
32: but dynamic model
33: die cavity
37: push rod
100: ultrasonic vibration apparatus
101: the ultrasonic vibration part
102: vibration control portion
103: ultrasonic vibration horn
103a: front end face (vibration radiation face)
S: vibrating effect is given scope
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.Fig. 2 is the profile of casting ladle 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, and it possesses: casting ladle 10, die casting tube 20 and mould 30.
In addition, be formed with the liquation communication port 14 that liquation X flows at the bottom surface of container portions 11 11f.This liquation communication port 14 connects bottom surface 11f, the interior side opening 14a that opens in container portions 11 and narrower than the internal diameter of pars intermedia to the internal diameter of the outer openings 14b of atmosphere opening.And, be that the zone (hereinafter referred to as free air space R) that internal diameter increases disposes ball 15 at the pars intermedia of this liquation communication port 14.This ball 15 is blocked liquation communication port 14 with outer openings 14b is chimeric by deadweight usually, therefore becomes check-valves.In addition, by ball 15 is moved in free air space R liquation communication port 14 is opened.
In addition, in this container portions 11, be provided with the liquid level instrument 16 of measuring the liquid level that is drawn into liquation (hereinafter referred to as the casting ladle inner melt) X ' in the casting ladle 10.When the liquid level of casting ladle inner melt X ' reach a certain height, this liquid level instrument 16 was chimeric with the suction inlet 12a described later of vavuum pump 12, and feasible air from vavuum pump 12 sucks and stops.
Air force feed distributor 13 improves the internal pressure of the container portions 11 of casting ladle 10, promotes the discharge of liquation X, and it is fixed on the lid 11b.The suction inlet 13a of this air force feed distributor 13 is to atmosphere opening, and exhaust outlet 13b is in the face of the inside of container portions 11.
In addition, to give scope S vibration radiation face be (scope of dotted line among Fig. 2) around the front end face 103a to the vibrating effect of this ultrasonic vibration horn 103.In addition, so-called " vibrating effect is given scope " be meant, this ultrasonic vibration horn 103 is inserted liquation X ' after, can utilize the ultrasonic vibration of institute's radiation to make the scope in the hole of casting ladle inner melt X ' generation q.s.
20 couples of liquation X that inject from liquation supply port 21a of die casting tube apply high pressure and are pressed into mould 30, promptly inject.This die casting tube 20 has sleeve 21 that is fixed on the mould 30 and the plunger 22 that slides in sleeve 21.
Casting ladle guide 23 is upward open pallet shape, has the outlet 23b that is communicated with liquation supply port 21a at bottom surface 23a, outstanding valve is open with projection 23c, outstanding and highly be lower than valve and open the support shelves 23d that uses projection 23c upward upward.Valve is opened with projection 23c when casting ladle 10 is configured on this casting ladle guide 23, inserts in the liquation communication port 14 and with ball 15 to push upward, and it is moved in free air space R.In addition, in the time of in casting ladle 10 is configured in this casting ladle guide 23, support shelves 23d and casting ladle 10 interfere, and make to produce the gap between casting ladle 10 and the casting ladle guide 23
But mould 30 has fixed die 31 and dynamic model 32, but when dynamic model 32 carries out matched moulds near fixed die 31, the concavo-convex die cavity 33 and the cast gate 34 of forming on the composition surface by being formed at each mould 31,32.
Fixed die 31 is fixed on the fixed disk 35.On this fixed disk 35, be formed with and insert the fixedly through hole of die casting tube 20.And, on fixed die 31, be formed with the 31a of running channel portion that cast gate 34 and die casting tube 20 are communicated with.
On the movable plate 36 that but dynamic model 32 is fixed in is 34 approaching with respect to fixed disk, leave, can move with movable plate 36 one.In addition, on this movable plate 32, be provided with a plurality of push rods 37 ....
Each push rod 37 will separate from mould 30 by liquation X being expelled to the die cast product that die cavity 33 makes.But each push rod 37 connects dynamic model 32 respectively, and simultaneously, front end face 37a is in die cavity 33.And the base end part 37b of each push rod 37 is fixed in the push pedal 38 of the position of being located at die cavity 33 opposition sides.This push pedal 38 is 33 approaching with respect to die cavity by driving mechanism 38a, away from, make a plurality of push rods 37 ... but haunt from dynamic model 32 simultaneously.
Secondly, the casting method of embodiment 1 is described.
Fig. 3 A is the key diagram of the casting method among the expression embodiment 1, and (a) the expression liquation draws step.Fig. 3 B is the key diagram of the casting method among the expression embodiment 1, (b) expression liquation supplying step.Fig. 3 B is the key diagram of the casting method among the expression embodiment 1, (c) expression liquation implantation step.Fig. 3 C is the key diagram of the casting method among the expression embodiment 1, (d) expression liquation injecting step, (e) expression liquation coagulation step.Fig. 3 D is the key diagram of the casting method among the expression embodiment 1, (f) expression die sinking step, (g) expression goods demoulding step.
In the casting method of embodiment 1, but the dynamic model 32 that makes mould 30 in advance forms die cavity 33 and cast gate 34 near fixed die 31 on the composition surface of each mould 31,32.In addition, in calciner 2, store the liquation X that alloy material is arranged.
Draw in the step at liquation, shown in Fig. 3 A (a), at first with bar 11e the container portions 11 of casting ladle 10 is sling, among the liquation X in the bottom insertion calciner 2 of the container portions 11 that the posture that keeps casting ladle 10 is constant with suspension.Then, drive vavuum pump 12, the air in the container portions 11 is sucked and discharges from exhaust outlet 12b from suction inlet 12a.Thus, the inside of container portions 11 becomes vacuum state (negative pressure), and ball 15 is pulled up and floats in the free air space R.Thus, the liquation X in the calciner 2 is inhaled in the container portions 11 that becomes vacuum state by between liquation communication port 14 and the ball 15.In addition, at this moment, air force feed distributor 13 cuts out.
On the other hand, begin to drive simultaneously, the vibration control portion 102 of ultrasonic vibration apparatus 100 is connected, drive ultrasonic vibration part 101 with vavuum pump 12.Thus, ultrasonic vibration horn 103 vibrations are amplified and the radiate supersonic wave vibration from front end face 103.At this moment, liquation X is by flowing in the container portions 11 after the vibrating effect that forms around the front end face 103a of the ultrasonic vibration horn 103 relative with liquation communication port 14 is given scope S.That is, Yi Bian the ultrasonic vibration of applying, Yi Bian liquation X is drawn in the casting ladle 10.
Then, when a certain amount of liquation X entered in the container portions 11, liquid level instrument 16 was chimeric with the suction inlet 12a of vavuum pump 12, stops the suction of air.Thus, the pressure in the container portions 11 becomes necessarily, and ball 15 is mobile downwards and chimeric with the outer openings 14b of liquation communication port 14 by deadweight, blocks flowing of liquation X., keep the posture of casting ladle 10 constant, casting ladle 10 is mentioned from calciner 2 thereafter.
In the liquation supplying step, shown in Fig. 3 B (b), liquation is drawn the liquation X that draws in the step remain in the casting ladle 10, keep the posture of this casting ladle 10 and move to above the liquation supply port 21a of die casting tube 20 transfer ladle 10 inner melt X '.Therebetween, along with driving ultrasonic vibration part 101, ultrasonic vibration horn 103 also vibrates, and ultrasonic vibration is exaggerated and radiation from front end face 103a.
In the liquation implantation step, shown in Fig. 3 B (c), on the casting ladle guide 23 that casting ladle 10 is positioned in be installed on sleeve 21.Thus, the open insertion in the liquation communication port 14 with projection 23c of the valve of casting ladle guide 23 boosts ball 15 and hold it in the free air space R.In addition, the bottom surface of casting ladle 10 and support shelves 23d interference produce the gap between the bottom surface of the bottom surface of casting ladle guide 23 23a and container portions 11.
Thus, the casting ladle inner melt X ' that is drawn in the container portions 11 passes through to flow out between casting ladle guide 23 and container portions 11 between liquation communication port 14 and the ball 15 as shown in Figure 4, injects in the sleeve 21 by outlet 23b, solution supply port 21a successively.
On the other hand, during the casting ladle inner melt X ' outflow, the vibration control portion 102 of ultrasonic vibration apparatus 100 also connects, and drives ultrasonic vibration part 101.Thus, ultrasonic vibration horn 103 vibrations continue to amplify and the radiate supersonic wave vibration from front end face 103a.At this moment, casting ladle inner melt X ' flows into liquation communication port 14 by after the vibrating effect that forms around the front end face 103a of the ultrasonic vibration horn 103 relative with liquation communication port 14 is given scope S.
At this moment, air force feed distributor 13 is driven, and sucks air and is discharged in the container body 11 from suction inlet 13a.Thus, the pressure in the container body 11 uprises, and promotes the discharge of casting ladle inner melt X '.
After injecting casting ladle inner melt X ', vibration control portion 102 disconnects, and ultrasonic vibration part 101 is stopped.Then, keep the posture of casting ladle 10 constant, move to the top of calciner 2 once more, prepare cast next time.At this moment, plunger 22 retreats into the end position of sleeve 21.
This liquation draw step, liquation supplying step, liquation implantation step be equivalent to while apply ultrasonic vibration, with liquation X from calciner 2 to die casting tube 20 carry and inject encourage the conveying operation of shaking.
In the liquation injecting step, shown in Fig. 3 C (d), after the fluid injection in the liquation implantation step finishes,, advance at utmost speed together with the plunger sheet 22a that is attached thereto immediately by injection cylinder 22c drive plunger rod 22b.Thus, the liquation X in the die casting tube 20 injects and is filled in 33 by the 31a of running channel portion, the cast gate 34 of fixed die 31 successively.
This liquation injecting step is equivalent to utilize the injection process of the die casting tube 20 injection liquation X that are injected with liquation X ' in encouraging the conveying operation of shaking.
In the liquation coagulation step, shown in Fig. 3 C (e), carry out the stipulated time matched moulds, the liquation X in die cavity 33 solidifies and becomes die cast product Y.
This liquation coagulation step is equivalent to make the liquation X that injects in injection process to solidify and the die casting manufacturing process that makes die cast product Y.
In the die sinking step, shown in Fig. 3 D (f), but dynamic model 32 and fixed die 31 are separated and move, carry out die sinking.At this moment, but but liquation X is solidified and the die cast product Y that forms together moves with dynamic model 32 with the state that fits tightly with dynamic model 32 sides.
In the goods demoulding step, shown in Fig. 3 D (g), make push pedal 38 to die cavity 33 side shiftings, make a plurality of push rods 37 ... but outstanding from dynamic model 32 simultaneously.Thus.But die cast product Y separates with dynamic model and is discharged from.
Then, illustration.
At first, carry out the explanation of " characteristic of die cast product ", then, with the effect of the casting device of embodiment 1 be divided into " ultrasonic vibration applies effect ", " dendrite increase effect ", " characteristic action in the casting method " describes.
[characteristic of die cast product]
Fig. 5 is the state diagram of aluminium-silicon alloys.Fig. 6 is the figure of the relation property of expression dendrite size of die cast product and tensile strength.Fig. 7 is the key diagram of the miniaturization state of expression dendrite, and (a) expression has generated the situation of a large amount of dendrite, the situation after (b) dendrite that is generated is pulverized in expression.Fig. 8 (a) be expression from encourage shake stop after to the figure of the relation property of time of solidifying fully and dendrite size, (b) be the figure that represents apart from the relation property of the distance of loudspeaker and dendrite size.
In Fig. 5, the Ta-C curve is a liquidus curve, and the D-C straight line is a solidus.In addition, aluminium-silicon alloys is a liquid phase more than liquidus temperature, is solid phase below solidus temperature, is liquid phase and solid phase coexistence (solid-liquid coexisting phase) between liquidus temperature and solidus temperature.
Usually, the tissue of the die cast product that the aluminium alloy of order by the not enough C of silicon containing ratio constitutes is by dendrite of primary crystal α-Al solid solution (below, be called " dendrite ") and eutectic formation.
The cooperation ratio of silicon is the aluminium-silicon alloys of A% owing to be more than the liquidus temperature at some a shown in Figure 5, thereby is liquid phase, is the state of so-called liquation X.At this moment, dendrite and eutectic do not generate.
When temperature descended, some a descended gradually, begins to generate dendrite when being lower than liquidus temperature.And the dendrite that is generated is grown up along with the decline of alloy temperature and is become big gradually.The crystallization that generate this moment 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. 6).
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. 7 (a)).In addition, the second, consider to dwindle dendrite size (with reference to Fig. 7 (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. 8 (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. 8 (b)) that generates in the liquation.
[ultrasonic vibration applies effect]
In the casting device 1 of embodiment 1,, the casting ladle inner melt X ' that is drawn in the casting ladle 10 is applied ultrasonic vibration by amplifying the ultrasonic vibration horn 103 of radiation from the vibration of the ultrasonic vibration part 101 of being located at casting ladle 10.
Therefore, can apply ultrasonic vibration, can give sufficient vibrating effect liquation X to the more a spot of liquation X that is drawn in the casting ladle 10.
That is, based on the vibrating effect of ultrasonic vibration horn 103 give scope S only be defined as leading section 103a around, relative therewith, the liquations in the calciner 2 are a large amount of.Therefore, can not give vibrating effect effectively even ultrasonic vibration horn inserted in the calciner 2, and that the liquation that is drawn into casting ladle 10 makes is more a spot of, can be delivered to casting ladle inner melt X ' integral body fully from the ultrasonic vibration of ultrasonic vibration horn 103.
In addition, in calciner 2, dispose under the situation of ultrasonic vibration horn, draw by casting ladle moment ultrasonic vibration apply end, become the so-called halted state of shaking of encouraging.From encourage shake stop to time that liquation solidifies fully short in (with reference to Fig. 8 (a), but when can not give vibrating effect in casting ladle the time, elongated from adding the time that stops to liquation solidifies fully of shaking, vibrating effect might weaken well.To this, in the casting ladle 10 of the casting device 1 of embodiment 1,, be continuously applied ultrasonic vibration the drawing → carry of liquation X → inject, the liquation X that is injected in the die casting tube 20 is injected into the state that keeps high vibrating effect.Therefore, can give sufficient ultrasonic vibration effect, shorten from encouraging to shake and stop time of solidifying fully to liquation to the liquation X that is injected into die casting tube 20.
In addition, about the temperature of liquation X, the liquation that is drawn into behind the casting ladle 10 is lower than the temperature of the liquation in the calciner 2, becomes more the state near setting temperature.Therefore, under the lower state of temperature, give vibrating effect, can further shorten from encouraging to shake and stop time of solidifying fully, help the crystalline structure miniaturization to liquation.
Particularly in the casting device 1 of embodiment 1, the state relative with the bottom surface 11f of the container portions 11 of casting ladle 10 is fixed on the flange 11a ultrasonic vibration horn 103 so that the vibration radiation face is front end face 103a.
Thus, the front end face 103a of radiate supersonic wave vibration can give sufficient vibrating effect towards casting ladle inner melt X ' dipping.
In addition, be provided with the liquation communication port 14 that liquation X flows at the bottom surface 11f of the container portions 11 of casting ladle 10, particularly in embodiment 1, the front end face 103a of ultrasonic vibration horn 103 and liquation communication port 14 relative to.
Therefore, the posture that can former state keeps casting ladle 10 is constant and make liquation X flow into, flow out, and the ultrasonic vibration part 101 of ultrasonic vibration apparatus 100 is with liquation X in vibration control portion 102 can not contact calciner 2 and operate.In addition, because front end face 103a is relative with liquation communication port 14, the liquation X that comes in and goes out from liquation communication port 14 can pass through from giving scope S at the vibrating effect that forms of front end face 103a on every side.That is, vibrating effect is given near the side opening 14a that scope S is positioned at liquation communication port 14, flows in the container portions 11 after the liquation X that comes in and goes out from liquation communication port 14 gives scope S by vibrating effect, or discharges from container portions 11.Thus, can give vibrating effect effectively to casting ladle inner melt X '.
And, be provided as the ball 15 of check-valves by liquation communication port 14 at casting ladle 10, can in calciner 2, draw liquation X, but when carrying liquation, liquation communication port 14 be closed, thereby satisfy function as casting ladle.In addition, because the formation for making ball 15 rely on deadweight that liquation communication port 14 is blocked, so structure is very simple.
In addition, in the casting device 1 of embodiment 1,, utilize vavuum pump 12 that the air in the container portions 11 is discharged, reduce internal pressure (substantial vacuum state) in order to draw the liquation X in the calciner 2.Therefore, can draw from liquation communication port 14 suction liquation X, and can promote this to draw action, shorten the operating time.
At this, in container portions 11, be provided with the liquid level instrument 16 of the liquid level of measuring casting ladle inner melt X ', thus, can carry out effective rate of utilization management, the quantitative management of the liquation X that drawn.In addition, constituting among the embodiment 1, when casting ladle inner melt X ' reached a certain amount of, liquid level instrument 16 shut down it with the suction inlet 12a of vavuum pump 12 is chimeric, thereby can carry out high-precision quantitative management with very simple formation.
On the other hand, injecting casting ladle inner melt X ' time, if be positioned in the casting ladle guide 23, then valve is open pushes balling-up 15 and makes casting ladle inner melt X ' outflow with projection 23c.At this moment,, promote liquation to discharge, can shorten the operating time by the internal pressure of air force feed distributor 13 raising container portions 11.
[dendrite increase effect]
In the casting device 1 of embodiment 1, after draw liquation X to casting ladle 10 until carrying and during die casting tube 20 injected liquations, X ' was continuously applied ultrasonic vibration by 100 pairs of casting ladle inner melts of ultrasonic vibration apparatus.At this moment, the temperature of casting ladle inner melt X ' reaches more than the liquidus temperature, becomes the state before crystallization generates.
Therefore, can in the casting ladle inner melt X ' before dendrite generates, generate holes in a large number.And can before hole hour, be injected in the die casting tube 20 generation that therefore can to promote with these a large amount of holes be a large amount of dendrite of nuclear.Its result, the growth of the dendrite that can suppress to generate and become little state can realize the miniaturization of crystalline structure.
(characteristic action in the casting method)
As mentioned above, in the casting method of embodiment 1, have be equivalent to the limit apply the ultrasonic vibration limit with liquation X from calciner 2 to die casting tube 20 carry and encouraging of injecting shake carry operation, liquation draws step, liquation supplying step and liquation implantation step.
Therefore, can keep high vibrating effect and liquation X is injected to die casting tube 20, can realize the miniaturization of crystalline structure.Just, to be nuclear, can promote the generation of dendrite by applying the hole that ultrasonic vibration generates.Its result can make the quantity of dendrite increase, and suppresses the growth of each dendrite, the crystalline structure miniaturization.
Below, description effect.
In the casting device and casting method of embodiment 1, can obtain the following effect of enumerating.
(1) is transported to the casting device 1 of the casting ladle 10 of die casting tube 20 and injection at the liquation X that possesses alloy material from calciner (calciner or maintenance stove) 2, above-mentioned casting ladle 10 has ultrasonic vibration apparatus 100, it possesses ultrasonic vibration part 101 that ultrasonic vibration takes place, will amplify the ultrasonic vibration horn 103 of radiation from the vibration of this ultrasonic vibration part 101, and the liquation (casting ladle inner melt X ') that 103 pairs of above-mentioned ultrasonic vibration horns are drawn in the above-mentioned casting ladle 10 applies ultrasonic vibration.
Therefore, can subtend die casting tube the 20 liquation X that inject give sufficient ultrasonic vibration effect.
(2) above-mentioned ultrasonic vibration horn 103 is fixed in the upper flange (flange 11a) of above-mentioned casting ladle 10 under vibration radiation face (front end face 103a) state relative with the bottom surface 11f of above-mentioned casting ladle 10.
Therefore, except that the effect of above-mentioned (1) record, the front end face 103a of radiate supersonic wave vibration can be towards casting ladle inner melt X ' dipping, thereby can give sufficient vibrating effect.
(3) above-mentioned casting ladle 10 is provided with the liquation communication port 14 that above-mentioned liquation X flows at above-mentioned bottom surface 11f.
Therefore, except that the effect of above-mentioned (2) record, because front end face 103a is relative with liquation communication port 14, the liquation X that comes in and goes out from liquation communication port 14 gives scope S from vibrating effect and passes through, and can give casting ladle inner melt X ' effective vibrating effect.In addition, the posture that can keep casting ladle 10 is constant and carry out outflow, the inflow of liquation X, and ultrasonic vibration part 102 does not contact the liquation X in the calciner 2 and can operate.
(4) above-mentioned casting ladle 10 is provided with check-valves (ball 15) in above-mentioned liquation communication port 14.
Therefore, except that the effect of above-mentioned (3) record, can carry out inflow, the outflow management of liquation X with simple structure.
(5) above-mentioned casting ladle 10 have via above-mentioned liquation communication port 14 when calciner 2 draws liquation X, reduce internal pressure and the drawdown pump (vavuum pump 12) that promotes to draw.
Therefore, except that the effect of above-mentioned (3) or (4) record, can promote drawing of liquation X, shorten the operating time.
(6) above-mentioned casting ladle 10 is provided with the liquid level instrument 16 of the liquid level of the liquation (casting ladle inner melt X ') that mensuration draws.
Therefore, except that the effect of above-mentioned (1)～(5) record, the management of the effective rate of utilization of the liquation X that can draw, quantitative management.
(7) above-mentioned die casting tube 20 have liquation supply port 21a that the liquation X that injects from above-mentioned casting ladle 10 flows into, to the casting ladle guide 23 of this liquation supply port 21a guiding liquation, above-mentioned casting ladle guide 23 has the above-mentioned check-valves of pushing (ball 15) makes the open projection 23c that uses of its open valve.
Therefore, except that the effect of above-mentioned (4) record, can inject liquation to die casting tube 20 effectively with simple formation.
(8) with the liquation X of alloy material to mould 30 injections and make in the casting method of die cast product, have on one side the ultrasonic vibration of applying utilize casting ladle 10 with above-mentioned liquation X from calciner 2 to die casting tube 20 carry and inject encourage conveying operation (Fig. 3 A (a) that shakes, Fig. 3 B (b), (c)), utilization is at above-mentioned conveying operation (Fig. 3 A (a) that shakes that encourages, Fig. 3 B (b), (c)) be injected with the injection process (Fig. 3 C (d)) of the above-mentioned liquation X of above-mentioned die casting tube 20 injections of liquation X in, the die casting manufacturing process (Fig. 3 C (e)) that the above-mentioned liquation X that injects at above-mentioned injection process (Fig. 3 C (d)) is solidified and make die cast product.
Therefore, the liquation that can subtend die casting tube injects is given sufficient ultrasonic vibration effect.
[embodiment 2]
The example that embodiment 2 oversimplifies for the formation that makes casting ladle 10.
At first, its formation is described.
Fig. 9 is the profile of casting ladle of the casting device of expression embodiment 2.
Among the casting ladle 10A of the casting device of this embodiment 2, utilize bolt 30 to block, but the bar 31 of outstanding and knee-action above container portions 11 is installed on this bolt 30 in the liquation communication port 14 that the bottom surface of container portions 11 11f forms.
Among the casting ladle 10A of such embodiment 2, when drawing liquation X, casting ladle 10 be impregnated among the liquation X in the calciner 2.Secondly, with the upper end 31a pull-up upward of bar 31, take and make liquation communication port 14 to open from liquation communication port 14 on bolt 30.In addition, be communicated with atmosphere in the container portions 11 at this moment.Thus, liquation X flows in the container portions 11, can draw liquation X.
On the other hand, when injecting liquation X, at first make the position consistency of the liquation supply port 21a of the position of liquation communication port 14 of casting ladle 10 and die casting tube 20.The upper end 31a of pull-up bar 31 upward takes and makes liquation communication port 14 open from liquation communication port 14 on bolt 30 then.In addition, at this moment, also be communicated with in the container portions 11 with atmosphere.Thus, liquation X can lean on deadweight to flow down from container portions 11, injects to die casting tube 20.
Like this, do not use vavuum pump or air force feed distributor etc., can carry out feeding, the discharge opeing of the liquation X of casting ladle with simple structure.
[embodiment 3]
Its formation at first is described.
Figure 10 is the profile of casting ladle of the casting device of expression embodiment 3.
In the casting ladle 10B of the casting device of this embodiment 3, the upper side 40a of container portions 40 be formed with a plurality of liquation inflow entrances 41 ....This liquation inflow entrance 41 connects the upper side 40a of container portions 40.
When the casting ladle 10B that utilizes such embodiment 3 draws liquation X, keep posture constant and this casting ladle 10B be impregnated among the liquation X of calciner 2.Thus, can flow into liquation X, carry out drawing of liquation X from each liquation inflow entrance 41.
Below, its effect is described.
The casting device of embodiment 3 can obtain the following effect of enumerating except that the effect of above-mentioned (1)～(4).
(7) above-mentioned casting ladle 10B is provided with the liquation inflow entrance 41 that flows into liquation X from calciner 2 at side 40a.Therefore, need not casting ladle 10B is tilted just can carry out drawing of liquation with simple formation.
More than, based on embodiment 1～embodiment 3 casting device of the present invention and casting method have been described, but concrete formation is not limited to these embodiment, only otherwise exceed the invention aim of each claim item of the scope that patent requires, allows the change of design or appends etc.
In embodiment 1 and 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, also can be for for example vertically injecting the vertical die-casting machine of liquation X.
In addition, the alloy material as among the embodiment 1 has adopted 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, casting ladle all possesses and will amplify the ultrasonic vibration horn of radiation from the vibration of the ultrasonic vibration part that ultrasonic vibration takes place, by utilizing ultrasonic vibration horn that the liquation that is drawn in the casting ladle is applied ultrasonic vibration, can make the die cast product of crystalline structure miniaturization.
In addition, the casting ladle 10 of embodiment 1 is for to draw the formation of liquation X from calciner 2, but also can replace calciner 2, from for example keeping the maintenance stove of alloy material to draw liquation with the liquation state.
And, in the casting ladle 10 of embodiment 1, be provided with vavuum pump as the drawdown pump of the internal pressure that reduces casting ladle 10, but needn't strictly be kept to vacuum, get final product so long as can reduce the air pump of pressure.
In addition, in the casting ladle 10 of embodiment 1, having used the suspension bar 11e of suspention casting ladle 10, but be not limited to this, also can be steel wire or rope.
Claims (9)
1. a casting device has casting ladle, and it from calciner or keep stove to be transported to the die casting tube and inject wherein, is characterized in that the liquation of alloy material,
Described casting ladle has ultrasonic vibration apparatus, and this ultrasonic vibration apparatus has the ultrasonic vibration part that produces ultrasonic vibration, will amplify and the ultrasonic vibration horn of radiation from the vibration of this ultrasonic vibration part,
Described ultrasonic vibration horn applies ultrasonic vibration to the liquation that is drawn in the described casting ladle.
2. casting device as claimed in claim 1 is characterized in that
Described ultrasonic vibration horn is fixed on the upper flange of described casting ladle under the vibration radiation face state relative with the bottom surface of described casting ladle.
3. casting device as claimed in claim 2 is characterized in that,
Described watering wraps in described bottom surface and is provided with the liquation communication port that described liquation flows.
4. casting device as claimed in claim 3 is characterized in that,
Described watering wraps in described liquation communication port and is provided with check-valves.
5. as claim 3 or 4 described casting devices, it is characterized in that,
Described casting ladle has drawdown pump, via described liquation communication port from calciner or when keeping stove to draw liquation, described drawdown pump reduces internal pressure and promotes to draw action.
6. as each described casting device in the claim 1～4, it is characterized in that,
Described watering wraps in the side and is provided with from calciner or keeps stove to flow into the liquation inlet opening of liquation.
7. as each described casting device in the claim 1～6, it is characterized in that,
Described casting ladle is provided with the liquid level instrument that the liquid level of the liquation that draws is measured.
8. casting device as claimed in claim 4 is characterized in that,
Described die casting tube has: the liquation supply port, and the liquation that injects from described casting ladle flows into from this liquation supply port; The casting ladle guide, it guides liquation to described liquation supply port,
Described casting ladle guide has the valve opening projection of pushing described check-valves and it being opened.
9. a casting method is injected the liquation of alloy material in mould, makes die cast product, it is characterized in that having:
Encourage the conveying operation of shaking, Yi Bian the ultrasonic vibration of applying, Yi Bian described liquation is carried and injection to the die casting tube from calciner or maintenance stove by casting ladle;
Injection process utilizes at described described die casting tube of encouraging after being injected into liquation in the conveying operation of shaking and injects described liquation;
The described liquation of injecting is solidified in die casting manufacturing process in described injection process, make die cast product.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010068632A JP5068837B2 (en) | 2010-03-24 | 2010-03-24 | Casting apparatus and casting method |
| JP068632/10 | 2010-03-24 |
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| Publication Number | Publication Date |
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| CN102198500A true CN102198500A (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110071326XA Pending CN102198500A (en) | 2010-03-24 | 2011-03-24 | Casting device and casting method |
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| JP (1) | JP5068837B2 (en) |
| CN (1) | CN102198500A (en) |
Cited By (5)
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| 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 |
| CN104203455A (en) * | 2012-03-30 | 2014-12-10 | 丰田自动车株式会社 | Molding method and molding apparatus |
| 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 |
| CN109442994A (en) * | 2017-03-02 | 2019-03-08 | 叶柳竹 | A kind of chemical industry smelting device quantitatively conveying chemical agent |
| CN112974767A (en) * | 2019-12-18 | 2021-06-18 | 财团法人金属工业研究发展中心 | Degassing device |
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| JP2014034040A (en) * | 2012-08-07 | 2014-02-24 | Toyota Motor Corp | Casting method |
| KR101506553B1 (en) | 2013-08-19 | 2015-03-30 | 한국생산기술연구원 | Ultrasonics wave shaker |
| JP5913487B2 (en) * | 2014-09-02 | 2016-04-27 | 有限会社ティミス | Vibrating hot water supply system for molten metal in automatic casting equipment |
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Also Published As
| Publication number | Publication date |
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| JP2011200883A (en) | 2011-10-13 |
| JP5068837B2 (en) | 2012-11-07 |
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