CN100364697C - Molding of slurry-form semi-solidified metal - Google Patents
Molding of slurry-form semi-solidified metal Download PDFInfo
- Publication number
- CN100364697C CN100364697C CNB2004800189944A CN200480018994A CN100364697C CN 100364697 C CN100364697 C CN 100364697C CN B2004800189944 A CNB2004800189944 A CN B2004800189944A CN 200480018994 A CN200480018994 A CN 200480018994A CN 100364697 C CN100364697 C CN 100364697C
- Authority
- CN
- China
- Prior art keywords
- semi
- metal
- container
- solid metal
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Continuous Casting (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Confectionery (AREA)
Abstract
Molding of slurry-form semi-solidified metal, comprising the step of providing a map showing, by metal components, the correlation between solid phase ratio and viscosity with respect to slurry-form semi-solidified metal (27); the step of setting up target viscosity corresponding to target solid phase ratio with the use of the map; the viscosity measuring step of while cooling semi-solidified metal placed in container (13), measuring the viscosity thereof; and the step of continuing cooling until the viscosity reaches the target viscosity, wherein the group of these steps are accomplished between providing of a map showing the correlation between solid phase ratio and viscosity with respect to semi-solidified metal and completion of cooling of the semi-solidified metal to thereby cause the solid phase ratio of the semi-solidified metal to agree with the target solid phase ratio. The viscosity is detected to thereby enable avoiding of the influence of cooling rate variation and time, so that as compared with the conventional supervision on the basis of time, the precision of control of solid phase ratio of semi-solidified metal can be enhanced strikingly.
Description
Technical field
The present invention relates to use the manufacturing of the die cast product of slurry-form semi-solidified metals such as aluminium alloy.
Background technology
The technology of the molten metal die cast of aluminium alloy etc. just is being widely used now, recently, is using the casting die of semi-solid metal of glutinous pulpous state of solid-liquid coexisting state of the raising of the raising that is suitable for die life and die cast product dimensional accuracy to receive publicity.
In the casting die of using semi-solid metal, the management of the solid rate of the ratio of the solid-liquid of expression alloy liquation is most important.In the invention of the management of this solid rate, for example pass through to the temperature treatment of the transformation temperature of semi-solid metal, and by carrying out stirring the time management that certain hour cools off from transformation temperature, and obtain the method for target solid rate, open in the 2002-153945 communique by known for example spy.
Figure 35 obtains being recorded in the method that the spy opens the target solid rate in the 2002-153945 communique with flowcharting.
At first, input control time started Ts.Next, the semi-solid metal that is full of container is stirred and begins to cool down, and read in temperature by the semi-solid metal of thermocouple measurement.
Here, will be made as Time from the elapsed time of cooling beginning, and before this elapsed time Time arrives Ts, stir always, and continue to read in the semi-solid metal temperature.If elapsed time Time reaches Ts, then enter following step ST05.
In ST05, infer transformation temperature Pt from cooling curve.In ST06, ask the cool time Tf of calculation corresponding to transformation temperature Pt, promptly from transformation temperature Pt to the cool time that becomes the target solid rate.In ST07,, then finish to stir cooling and begin die casting rapidly if reach Tf the cool time behind the transformation temperature Pt.
Figure 36 shows with chart and obtains being recorded in the method that the spy opens the target solid rate of 2002-153945 communique, and the S07 of Figure 35 is replenished.If only the transformation temperature Pt from semi-solid metal stirred to cool time, then can form the target solid rate.
Open in the 2002-153945 communique above-mentioned spy, prerequisite is not for to change cooling velocity in the front and back of transformation temperature.
But usually, metal is in the front and back of transformation temperature rerum natura difference, inevitablely produces difference between the later cooling velocity of the cooling velocity before the transformation temperature and transformation temperature.
This difference shows as poor between target solid rate and the actual solid rate, and as a result of, the management precision of solid rate reduces.
In recent years, be accompanied by the raising that manufacturing technology is required, being necessary further to improve with the semi-solid metal is the solid rate management precision of object.Therefore, wish to substitute the existing administrative skill that solid rate is managed by the time.
In addition, in the past, the manufacturing line as based on the metal forming product of this die cast had: container, and it can hold the liquation of ormal weight; The semi-solid metal generating apparatus, thus the liquation in its cooling and the stirred vessel generates semi-solid metal; Forming machine, it is raw material and moulding metal forming product with the semi-solid metal.Carrying device, its by with container from the conveyance of semi-solid metal generating apparatus to forming machine, and the multi-joint type manipulator that the semi-solid metal in the container is put into forming machine constituted; The container restoring means, its subtend forming machine drops into semi-solid metal and becomes the recovery processing that empty container is implemented regulation.It is opened in the 2002-153945 communique by known for example spy.
In this technology, the container restoring means has: air blows mechanism, and it is cooled containers and remove adhesion metal in the air by blow air in container; And releasing agent coated coating mechanism in the container.
In addition, for example open in the 2002-336946 communique known: in the container restoring means, except air blows mechanism and coating mechanism, also append the cleaning agency that after the processing that blows mechanism based on air, cleans internal tank with brush the spy.
These existing container restoring means blow mechanism, be solidified as graininess and blow the mode that flies and play a role will adhere to the semi-solid metal that residues in the container inner face, but if semi-solid metal is residual with bigger piece, then be difficult to it is solidified and blow fly.Therefore, under and the situation of solidifying residual with bigger piece former state at semi-solid metal, can not be removed by cleaning agency, the frequency that is attached to the metal residual in the container becomes big.For this reason, in the past, after the container restoring means restores processing, confirmed to have or not adhesion metal in the container, under the residual situation that adhesion metal arranged, container was outwards taken out from production line, carried out the operation of removing of adhesion metal by naked eyes.Its result is necessary to prepare a plurality of containers for the outer comeback job of production line, thereby causes the raising of initial cost.
In addition, in the generation of semi-solid metal, the temperature treatment outbalance of container is necessary that blowing mechanism with air is cooled to set point of temperature with container.Yet if semi-solid metal is residual with bigger piece in the container, container is difficult to cooling, the cooling spended time of container, and in the productive raising of realization, have problems.
Therefore, wish to have a kind of manufacturing line of metal forming product, it constitutes, though the interior semi-solid metal of container also can remove efficiently so that bigger piece is residual, thereby solve the above problems.
In addition, known, manufacturing line as existing metal forming product constitutes, promptly purchased the semi-solid metal generating apparatus, thereby it generates semi-solid metal by having the stirring-head that is impregnated in the cool metal that is captured in the liquation in the container and cool off and stirring liquation, and with container from the conveyance of semi-solid metal generating apparatus to forming machine, and the semi-solid metal in the container put into forming machine.
Here, if on the cool metal of stirring-head, be attached with semi-solid metal, and place at this point and carry out the generation of following semi-solid metal, the coagulum that then is attached to cool metal and solidifies peels off in container and causes that the quality of semi-solid metal reduces, and coagulum disturbs and the generation plant issue formation such as containers.Therefore, in the past, open in the 2002-336946 communique knownly for example spy, promptly in abutting connection with semi-solid metal generating apparatus configuration stirring-head restoring means, and the recovery of after the generation of semi-solid metal stirring-head being granted regulation is handled.This stirring-head restoring means is purchased: by the cool metal of stirring-head is put into the cooling body that water cools off; And the coating mechanism that on cool metal, is coated with releasing agent.If in the cooling body kind cool metal is put into water, then Shuitu is so seethed with excitement, because of the situation of seething with excitement suddenly makes adhesion metal peel off from cool metal.
In addition, also proposed to carry out as follows the technology of the generation of semi-solid metal, i.e. additional cool metal and the viscosimetric analysis analyzer is installed on stirring-head, and cool metal and analyzer be impregnated in the liquation in the container simultaneously makes the measured value by the viscosity of analyzer mensuration become desired value.
Analyzer is installed on stirring-head if so, and then semi-solid metal and analyzer adhere to simultaneously.If in the cooling body of above-mentioned stirring-head restoring means with the entry simultaneously of cool metal and analyzer, though think and because of the unexpected boiling of water adhesion metal to be peeled off from analyzer, but in fact, because compare the thermal capacity of analyzer with cool metal minimum, so the situation of the unexpected boiling around the analyzer can be by force to the degree that adhesion metal is come off.Adhesion metal can be residual not too many on the analyzer.In addition, cool metal analyzer before being cooled to room temperature at this moment, can produce following problem also by with regard to this entry, and promptly the temperature of the analyzer that thermal capacity is little descends too much, and the releasing agent that is coated with in following painting process is difficult to drying.
Therefore, wish to have a kind of stirring-head restoring means and restored method of semi-solid metal generating apparatus, can when the recovery that attaches the stirring-head that analyzer is arranged be handled, remove the metal that prevents of analyzer efficiently, and can prevent the excessive cooling of analyzer.
In addition, in the past, the ejection forming technique of the semi-solid metal of glutinous pulpous state was opened in the 2002-336946 communique by known for example spy.
Based on figure below the spy being opened the technology that the 2002-336946 communique put down in writing describes.
Figure 37 represents that the spy opens the technology that the 2002-336946 communique is put down in writing.In addition, following S1～S11 represents step 1～step 11.
At first, in S1, keep stove to supply with the once liquation of amount to ladle from liquation.
So, in S2, the ladle conveyance to mixing platform, is shifted to first container there.
In S3, stir liquation in first container by mixing platform, form the solid rate of wishing as the solid-liquid coexisting state.This moment, temperature became homogeneous.
Next, in S4, injection molding mechanism is arrived in the first container conveyance.
On the other hand, in S5, in injection molding mechanism, carry out the matched moulds of mould simultaneously.
So, in S6, to the cast of ejection formation sleeve, in S7, penetrate to mould from first container.
In S8, blow air in becoming empty first container, in S9 to first container clean, the clean processing, in S10, in first container, implement coating.
In step S11,, then finish to make if the manufacturing number of moulding product reaches specified number or amount.If do not reach, then return S1 and continue to produce.
Yet because semi-solid metal is the mixture of solid phase and liquid phase, so the management of solid rate (=solid phase/(liquid phase+solid phase) %) is most important.This is because the quality of the moulding product that the solid rate difference then obtains can change.
In the S3 of Figure 37, stir the interior liquation of first container with cool metal, to cool off by heat-absorbing action with this stirring, the viscosity of liquation improves, and solid rate uprises.
Therefore, the stirring of liquation is most important for the management of solid rate.
, in above-mentioned prior art, when carrying out obtaining the manufacturing of a plurality of moulding product for forming certain solid rate, needed mixing time has bigger deviation.
If mixing time is extremely long, the time that injection molding mechanism is waited for becomes long, so productivity reduces.In addition, if mixing time is extremely short, then injection molding mechanism becomes and can not deal with, and therefore needs the container number of restriction circulation, and productivity reduces.
That is to say,, need to reduce the deviation of mixing time for a plurality of containers suitably being circulated and injection molding mechanism being worked well.
Therefore, wishing has a kind of technology, can be in the ejection formation of semi-solid metal, form certain and the deviation mixing time implemented is suppressed to the solid rate that is used to make liquation.
In addition, for example in the parts of making using casting die, the cylinder block of engine is arranged.In this cylinder block, be provided with water jacket as cooling water channel, have: this water jacket is opened on the formula of opening the cabin on cylinder head surface, the cabin formula of closing that water jacket is closed, and the part of water jacket is opened on the semi-closure cabin formula on cylinder head surface.Close the cylinder block of cabin formula and semi-closure cabin formula, because be connected with casing outer wall portion at cylinder head surface cylinder thorax, so have high rigidity, be out of shape lessly, and the life-span is longer.This closes the cylinder block of cabin formula and semi-closure cabin formula, because its water jacket is the shape of sealing, thus when casting, can not use lasting punch die to this water jacket, and the core that can pulverize, remove after the use casting, for example core.
On the other hand, cylinder block is the main composition portion of engine, because apply heat and pressure, so also be important components on intensity.Therefore, wish when countercylinder body casting, can prevent to produce blow hole.As the method that prevents that blow hole from producing, can exemplify out the semi-solid metal that uses glutinous pulpous state at founding materials.Semi-solid metal is the metal of solid-liquid coexisting state, so because being involved in of viscosity height gas is less, so can suppress the generation of blow hole.
In addition,, in the public clear 55-19704 communique of spy, put down in writing following die-casting and molding technology as relevant prior art, thereby promptly by before to the cavity complete filling liquation that possesses core, stopping the generation that piston suppresses impact.
Open in the flat 9-57415 communique the spy, the speed of having put down in writing the liquation when liquation is filled forms 1/5～1/50 low speed of common casting die and the method for filling.
In addition, open in the 11-104802 communique, put down in writing by the average particulate diameter of adjusting solid phase portion and prevent the pressure casting method that the semi-solid metal of glutinous pulpous state infiltrates in core the spy.
Yet the semi-solid metal of glutinous pulpous state has the character of the centre of liquid and solid, and is higher than liquid viscosity.For this reason, if make semi-solid metal impact core at high speed, then core might be damaged.Particularly, the thin core that is used to form water jacket etc. is damaged easily when full-bodied semi-solid metal bump, and the yield rate of goods is lower.Because core needs to remove after manufacturing, thus be preferably easy material crushed, and can not be really up to the mark.
Though the breakage of the core in order to prevent to cast and consider to reduce the injection rate of semi-solid metal, but need for a long time if inject, then semi-solid metal solidifies, and perhaps Yin Wendu reduces and the solid rate variation, therefore might can not obtain desirable mobile performance.In addition, because temperature reduces, the viscosity of semi-solid metal further uprises, and might damage core.
In the method that the public clear 55-19704 communique of aforesaid spy is put down in writing, though piston is stopped and the generation that suppressing to impact at a moment that liquation is about to fully to fill the volume in the cavity that possesses core, liquation speed is higher when clashing into core.If common liquation can not destroy even then clash into core at a relatively high speed yet, but as previously mentioned, under the situation of semi-solid metal high-speed impact, might be damaged.In addition, if the spy opens flat 9-57415 communique as described, reduce injection rate terrifically, then injection length is elongated, does not become problem under the situation of common liquation, but for semi-solid metal, will exist and solidify or the mobile problem that reduces.
Therefore, wishing has a kind of pressure casting method, and it can use semi-solid metal and suppress the generation of blow hole in founding materials, and core is destroyed, the yield rate of raising casting product.
Summary of the invention
First aspect present invention provides a kind of solid rate management method of semi-solid metal, wherein is made of following operation: the chart preparatory process, for given metal ingredient, prepare the solid rate of expression slurry-form semi-solidified metal and the relevant chart of viscosity; Target viscosities is determined operation, utilizes this chart and definite target viscosities corresponding to the target solid rate; The viscosity measurement operation is measured its viscosity to semi-solid metal cooling time of entering container; Refrigerating work procedure is implemented cooling before this viscosity arrives described target viscosities; By from the preparation of the relevant chart of expression solid rate of semi-solid metal and viscosity until the cooling of semi-solid metal finish during in these operation groups of enforcement, thereby make the solid rate of semi-solid metal consistent with the target solid rate.
In the process of cooling semi-solid metal, detect its viscosity, and manage the solid rate of semi-solid metal by this viscosity.In order to detect viscosity, can get rid of the variation of cooling velocity and the influence of time, than existing time-based management, can improve the management precision of the solid rate of semi-solid metal significantly.
Second aspect present invention provides a kind of device for measuring viscosity of semi-solid metal, and it is made of following mechanism: rabbling mechanism, and its semi-solid metal to the glutinous pulpous state that enters container stirs; The analyzer of cantilever beam shape, it inserts the bottom in the semi-solid metal; Analyzer travel mechanism, it moves in the horizontal direction this analyzer; Load cell, it measures this analyzer from the suffered power of described semi-solid metal; Change-over mechanism, it is according to the viscosity of the power conversion semi-solid metal that is detected by this load cell.
The device for measuring viscosity of semi-solid metal is made of analyzer, analyzer travel mechanism, load cell and the change-over mechanism of rabbling mechanism, cantilever beam shape.Any all is easy method or the parts easily of starting with, and can easily reach the cost degradation and the densification of device for measuring viscosity.
Third aspect present invention provides a kind of manufacturing line of metal forming product, the manufacturing line of the metal forming product of being made up of following structure: container, and it can place the liquation of ormal weight; The semi-solid metal generating apparatus, it is by the semi-solid metal to the liquation in the container cools off and stirring generates; Forming machine, its with semi-solid metal as raw material and moulding metal forming product; Carrying device, its with container from the conveyance of semi-solid metal generating apparatus to forming machine, and the semi-solid metal in the container dropped into forming machine; The container restoring means, it is implemented the recovery of regulation and handles become empty container owing to the input to the semi-solid metal of forming machine.The container restoring means has: air blows mechanism, and it is by blow air in container, and to container cooling and remove adhesion metal in the container; Coating mechanism, it is coated with releasing agent in container.In metal forming product manufacturing line, the container restoring means has also been purchased: spatula mechanism, it is scalped the semi-solid metal that is attached in the container before blowing the processing of mechanism based on air.
According to said structure,, also can remove this piece by spatula mechanism even semi-solid metal residues in the container with bigger piece after forming machine drops into semi-solid metal.For this reason, when carrying out blowing the processing of mechanism, do not exist semi-solid metal to residue in situation in the container, can blow mechanism by air and remove adhesion metal in the container effectively with the bulk former state based on air.Therefore, restore to handle in the container of back and adhere to the metal residual frequency, promptly the production line frequency of carrying out the container comeback job outward is lowered as much as possible.Its result need not prepare so many container, can realize the reduction of least cost.In addition, because prevented to make the cooling of container become difficult, promptly cooled off container effectively so blow mechanism by air because of the influence of bulk metal in the container.Therefore, be shortened the cool time of container, and productivity has also improved.
As spatula mechanism, though can consider to use the manipulator that scraper plate has been installed, its cost is higher.Here, if constitute carrying device with identical manipulator in the past with the multi-joint type, then promptly use the scraper plate that is installed on assigned position to constitute spatula mechanism, also can drop into the container that semi-solid metal becomes sky by making to forming machine, under the state of at this point being controlled with manipulator, move with respect to scraper plate and scalp the semi-solid metal that is attached in the container by conveyance.Thus, can oversimplify the structure of spatula mechanism and realize the reduction of cost.
In addition, when when semi-solid metal is dropped into forming machine and by the spatula structure, shoveling out semi-solid metal in the container, be attached with semi-solid metal, semi-solid metal often solidifies in peristoma portion like this, and when semi-solid metal when forming machine drops into, the frozen metal comes off and sneaks into forming machine from the peristoma of container, might cause that moulding is bad.At this moment, scraper plate is made into the utensil of the second scraper portion with the flat first scraper portion that can contact described inner surface of container and roughly L font that can contacting container peristoma portion, under the state that makes the first scraper portion contacting container inner surface, thereby after container being relatively moved scalp the semi-solid metal that is attached to vessel surface, thereby under the state that makes the first scraper portion contacting container peristoma, container is relatively moved and scalp the semi-solid metal that is attached to container mouth, can prevent that then semi-solid metal is attached to the metal peristoma and solidifies, comparatively favourable.
In addition, the container restoring means has after blowing the processing of mechanism according to air, under the situation with the cleaning agency of brush cleaning internal tank, if in the present invention accuracy rate is lower, and in container the remaining adhesion metal that has more than the prescribed level, then probably can produce losing of brush.Therefore, in the container of hope after blowing mechanism by air and handling during the remaining adhesion metal that has more than the given size, testing agency to its detection is set, and failing to detect under the residual situation of adhesion metal more than the given size by testing agency, carry out processing, to prevent losing of brush based on brushing mechanism.
Fourth aspect present invention provides a kind of rabbling mechanism restoring means of semi-solid metal generating apparatus, it is rabbling mechanism to the semi-solid metal generating apparatus, the restoring means of the rabbling mechanism that the recovery of implementing to stipulate after semi-solid metal generates is handled, it is made of following mechanism: cooling body, and it makes the cool metal of rabbling mechanism and analyzer entry and cools off; Coating mechanism, it is coated with releasing agent on cool metal and analyzer.Described semi-solid metal generating apparatus utilizes to have the cool metal that is impregnated in the liquation that is captured in the container and the viscosimetric analysis rabbling mechanism with analyzer, thereby to the liquation cooling and stir the semi-solid metal that generates.Wherein, restoring means also has: before processing based on cooling body, and the spatula mechanism that the semi-solid metal that is attached to analyzer is scalped.Cooling body has been purchased: the first entry portion, and it has the compartment that the water that holds analyzer does not immerse, and only makes cool metal entry; And the second entry portion, it makes the analyzer entry at least.
Fifth aspect present invention provides a kind of rabbling mechanism restored method of semi-solid metal generating apparatus, it is rabbling mechanism to the semi-solid metal generating apparatus, generate the restored method of the rabbling mechanism that is carried out the back at semi-solid metal, be made of following operation: refrigerating work procedure makes the cool metal of rabbling mechanism and analyzer entry and cools off; Painting process is being coated with releasing agent behind the refrigerating work procedure on cool metal and analyzer.Described semi-solid metal generating apparatus utilizes to have to be impregnated in the cool metal that is captured in the liquation in the container and the viscosimetric analysis rabbling mechanism with analyzer, thereby to the liquation cooling and stir and generate semi-solid metal.Wherein, comprise: the spatula operation, before refrigerating work procedure, the semi-solid metal that is attached to analyzer is scalped.Refrigerating work procedure is made up of following operation: the first entry operation, and it only makes cool metal entry; And the second entry operation, it makes the analyzer entry at least, and the processing time of the second entry operation is set shortlyer than the processing time of the first entry operation.
According to said structure, behind the harsh one-tenth of semi-solid metal, the major part that will be attached to the semi-solid metal of analyzer by spatula mechanism (spatula operation) is scalped.But the semi-solid metal that is difficult to will to be attached to spatula mechanism analyzer is removed the also residual semi-solid metal that the film shape is arranged on analyzer fully.
Here, when making the analyzer entry in the second entry portion (the second entry operation), even if the situation of the right boiling of Shuitu is not strong, the film shape semi-solid metal that residues in analyzer also peels off easily.Therefore can remove semi-solid metal effectively.In addition, owing to only make cool metal cooling in the first entry portion (the first entry operation), be used for cool metal is cooled off the necessary time even therefore the processing time in the first entry operation is set at, analyzer can exceedingly not be cooled yet.Therefore, in order in the second entry portion (the second entry operation), analyzer to be cooled to set point of temperature, and than the processing time of setting the second entry operation shortly, thereby can suitably cool off analyzer, and in coating mechanism (painting process), can not produce the problem that the releasing agent of coating analyzer is difficult to drying.Therefore, the recovery that can have the rabbling mechanism of cool metal and analyzer really and is effectively handled.
Present inventors, in the main cause of deviation of the mixing time of the described liquation of investigation, generation time was poor during the sweeping in the S9 of Figure 37 (step S9) was handled, for this reason along with the process of time, liberated heat increases in atmosphere, and the temperature of container becomes unstable and comes on the scene.That is to say that the form that is attached to the draff of empty container is various, once the draff that can simply clean, also the draff that need repeatedly could clean arranged.
Therefore, it is generally acknowledged, after implementing cleaning and coating processing, cool off, form necessarily by making cooled temperature, thereby the temperature of container is formed necessarily, so comparatively useful.
In addition, the inventor (in the step 1), also notices the variations in temperature that keeps the liquation of stove supply from liquation at the S1 of Figure 37.
Have deviation the temperature of the liquation that provides from aluminium dissolving stove, the deviation of this temperature keeps stove to exert an influence to liquation, therefore keeps the temperature of the liquation that stove provides that deviation is also arranged from liquation.
If the temperature of container is certain, there is deviation in the temperature of liquation, then can show mixing time also has deviation.
To keep the temperature of the liquation that stove provides to form necessarily in order making, and to consider to keep in the stove high performance temperature control device being set at liquation from liquation, but technically with cost on difficult realization.
That is to say, need a kind of technology, can absorb the change that keeps the liquation that stove provides from liquation.
Therefore, the present inventor attempts to prolong cool time of container when liquation keeps the temperature of stove higher, shorten the cool time of container when this temperature is low, so keeps the Temperature Influence of stove to marry again the temperature of container liquation.
So, the temperature of considering empty and liquation keep stove temperature the two and determine under the situation of cool time of temperature of liquation, can successfully reduce the degree of deviation of mixing time significantly.If from above viewpoint, then the present invention is as described below.
Sixth aspect present invention provides a kind of injection forming method of semi-solid metal, be the injection forming method that carries out the semi-solid metal of following work repeatedly: be next time that cast is prepared and to cooling off with the stipulated time because of the semi-solid metal to the glutinous pulpous state of forming machine cast becomes empty container, and keep stove to supply to this cooled container from liquation the semi-solid metal
For cast is next time prepared described stipulated time when empty cool off, determine based on the temperature of the temperature of liquation maintenance stove and empty.
Keep at liquation under the temperature condition with higher of stove, needed time lengthening, under the lower situation of this temperature, the needed time shortens.And, under the temperature condition with higher of empty, needed time lengthening, under the lower situation of this temperature, the needed time shortens.So, with based on the temperature of liquation maintenance stove and the needed time that temperature was determined of the container of sky,, can suppress the mixing time deviation, and can significantly improve the productivity of the ejection formation of semi-solid metal the empty cooling.
Seventh aspect present invention, improve a kind of pressure casting method, it penetrates from the liquation mouth by the semi-solid metal that the ejaculation piston will stick pulpous state, and by liquation road and bottleneck, described semi-solid metal is injected in the cavity that inside is provided with core, obtains the casting product thus, wherein, before the leading section of described semi-solid metal is injected into described cavity, reduce the flow velocity of described semi-solid metal thereby described ejaculation piston slowed down.
So, after semi-solid-state metal is slowed down, be injected into cavity, can prevent that semi-solid-state metal from damaging the core in the cavity.In addition, move at a high speed and in short time, can reduce because of solidifying and the reduction of the flowability that the temperature reduction causes by making it before being injected into cavity at semi-solid-state metal.
At this moment, also can, in ejaculation starting position, in the position of 90%～97% till the described ejaculation position of piston when described semi-solid metal is injected into described cavity at first, described ejaculation piston is slowed down from described ejaculation piston.Like this, by penetrating piston and slow down making, can be when semi-solid metal is injected into core its speed be decelerated to the suitable speed of not destroying core than the initial moment a little earlier in the moment that is injected into cavity of semi-solid metal.
For this pressure casting method,, thereby the high-quality casting product that blow hole produces can be inhibited by the use semi-solid metal.So and, also can be suitable for well to the casting product of the parts that close the like that complex-shaped and intensity aspect outbalance of cabin formula or semi-closure cabin formula.In addition, slow down,, also can not decrease this bad core, and can suitably be filled into cavity even core is corresponding to the position of the narrower shape of width as water jacket by making semi-solid metal.
According to this pressure casting method, produce and not damaged core by in founding materials, using semi-solid metal can suppress blow hole, realize the raising of the yield rate of casting product.In addition, because at liquation mouth and liquation portion high speed and mobile in short time semi-solid metal, therefore solidify and prevent because of solidifying or temperature reduces the flowability that causes and descends.
In addition, the invention provides a kind of manufacturing line of metal forming product, have: the semi-solid metal generating apparatus, thereby it utilizes rabbling mechanism that liquation is cooled off and stirs and generates slurry-form semi-solidified metal, and described rabbling mechanism has cool metal and the viscosity measurement probe that is impregnated in the described liquation that is captured in the container; The rabbling mechanism restoring means, it is implemented the recovery of regulation and handles after this semi-solid metal generates to described rabbling mechanism, it is characterized in that,
Described rabbling mechanism, stir this semi-solid metal and measure the viscosity of this semi-solid metal, move in the horizontal direction and run through this semi-solid metal, when described rabbling mechanism runs through this semi-solid metal and moves, be added in described viscosity measurement is used to measure this semi-solid metal with the power of the horizontal direction on the probe viscosity.
In addition, a kind of manufacture method of metal forming product also is provided, comprise: semi-solid metal generates operation, thereby it cools off liquation by rabbling mechanism and stirs and generates slurry-form semi-solidified metal, and described rabbling mechanism has cool metal and the viscosity measurement probe that is impregnated in the described liquation that is captured in the container; The rabbling mechanism cuttling, it is implemented the recovery of regulation and handles after this semi-solid metal generates to described rabbling mechanism, it is characterized in that,
Described agitating procedure, constitute by running through the operation that this semi-solid metal moves in the horizontal direction described rabbling mechanism, described viscosity measurement operation, when running through this liquation at described rabbling mechanism and move in the horizontal direction, constitute being added in the operation that described viscosity measurement measures with the power on the dipping portion of probe.
Description of drawings
Fig. 1 is the whole vertical view of the manufacturing line of embodiments of the present invention.
Fig. 2 is the schematic side elevation of device for measuring viscosity.
The vertical view of the motion track of the stirring-head when Fig. 3 is the generation of expression semi-solid metal.
Fig. 4 is the stereogram of expression to the input state of the semi-solid metal of forming machine.
Fig. 5 is the stereogram of expression container restoring means.
Fig. 6 is the side view of the spatula mechanism of expression container restoring means.
Fig. 7 is the vertical view of expression spatula mechanism.
Fig. 8 is the stereogram of expression stirring-head restoring means.
Fig. 9 is the vertical view of the spatula mechanism of expression stirring-head restoring means.
Figure 10 is the profile of the first entry portion that the cooling body of stirring-head restoring means is located in expression.
Figure 11 is a curve of studying the viscosity variation of the effluxion that is accompanied by semi-solid metal.
Figure 12 is the solid rate of expression semi-solid metal and the relevant curve map of viscosity.
Figure 13 is the relevant curve map of expression compliance voltage and viscosity.
Figure 14 is the flow chart of the solid rate management method of expression semi-solid metal.
Figure 15 is another enforcement illustration of device for measuring viscosity.
Figure 16 is another additional embodiments figure of device for measuring viscosity.
Figure 17 is the view of the 17-17 direction of Figure 16.
Figure 18 is the design drawing of the injection molding equipment of expression semi-solid metal of the present invention.
Figure 19 is the work sheet of ladle.
Figure 20 is the work sheet of rabbling mechanism.
Figure 21 is the work sheet of container.
Figure 22 is the work sheet of the cast container of sky.
Figure 23 is the correlogram that vessel temp of the present invention-liquation keeps furnace temperature-time.
Figure 24 is the manufacturing flow chart before penetrating.
Figure 25 is the manufacturing flow chart before the container cooling.
Figure 26 is the curve map of discreteness of the mixing time of expression liquation.
Figure 27 is the approximate three-dimensional map by the cylinder block of mold and pattern for casting tool casting.
Figure 28 is the summary side elevation by the cylinder block of mold and pattern for casting tool casting.
Figure 29 is that expression will be penetrated the side-looking face figure of cylinder configuration in the die for manufacturing of origin position.
Figure 30 is the flow chart of step of the pressure casting method of expression present embodiment.
Figure 31 is that the side view that piston moves to the preceding mold and pattern for casting tool of switching position is penetrated in expression.
Figure 32 is that the side view that piston moves to the preceding mold and pattern for casting tool of stop position is penetrated in expression.
Figure 33 is the curve map that the mean flow rate of the speed of piston and semi-solid metal is penetrated in expression.
Figure 34 is that the side cutaway view that piston moves to the mold and pattern for casting tool before the injection phase is penetrated in expression.
Figure 35 is the flow chart of method that expression obtains the target solid rate of existing semi-solid metal.
Figure 36 is the curve map of method that expression obtains the target solid rate of existing semi-solid metal.
Figure 37 is the flow chart that the injection forming method of existing semi-solid metal is used in expression.
The specific embodiment
What Fig. 1 represented is the manufacturing line 10 of metal forming product.This manufacturing line 10 has: liquation keeps stove 11, the liquation that its maintenance is formed by motlten metals such as aluminium alloys; Liquation drains out manipulator 12, and it drains out the liquation of ormal weight from liquation maintenance stove 11; Overlook the container 13 of rectangle, it will drain out the liquation injection that manipulator 12 drains out by liquation; Semi-solid metal generating apparatus 14, it is by generating semi-solid metal with cooling of the liquation in the container 13 and stirring; Forming machine 15, its with semi-solid metal as raw material and moulding metal forming product; Carrying manipulator 16, it is as carrying device, with container 13 from 14 conveyances of semi-solid metal generating apparatus to forming machine 15, and the semi-solid metals in the container 13 are put into forming machine 15.In addition, in manufacturing line 10, be provided with: container 13 is implemented to restore the container restoring means of handling 17; And as the stirring-head restoring means 18 of the stirring-head 41 of the aftermentioned rabbling mechanism of semi-solid metal generating apparatus 14.
Liquation drains out manipulator 12, is made of six multi-joint manipulators with following structure: rotation manipulator main body 21 freely; Shake freely first mechanical arm 22 with respect to manipulator main body 21; Shake freely second mechanical arm 23 with respect to first mechanical arm 22; And the wrist 24 of three reel structures of the end of second mechanical arm 23.Therefore, the end that forms at wrist 24 is provided with ladle 25, keeps the liquation in the stove 11 to drain out liquation by ladle 25.
Semi-solid metal generating apparatus 14 is provided with a pair of side by side.Each semi-solid metal generating apparatus 14 is by constituting with lower member: the mounting table 40 of container 13; Liquation stirring-head 41 in the stirred vessel 13; And the Mixing Machine hand 42 of mobile stirring-head 41.This manipulator 42 has: the manipulator main body 421 that is supported in pillar 420 by lifting freely; Shake freely first mechanical arm 422 in the horizontal direction with respect to manipulator main body 421; Shake freely second mechanical arm 423 in the horizontal direction with respect to first mechanical arm 422.At the end of second mechanical arm 423, stirring-head 41 is arranged around vertical straight line rotation suspention freely.
Stirring-head 41 as shown in Figure 2, has: the cool metal travel mechanism of describing in detail later on 410; Be vertical at the rectangular-shaped a pair of cool metal 411,411 of cool metal travel mechanism 410; In cool metal travel mechanism 410, be positioned at two 411,411 on cool metals and fascinate and hang down the laminal viscosimetric analysis of establishing freely with analyzer 412.On analyzer 412, be connected with the load cell 423 that is installed in the support 413a that is fixed in cool metal travel mechanism 410.
In Fig. 1, when semi-solid metal generates, at first, drain out the action of manipulator 12 by liquation, the liquations in the ladle 25 are poured in mounting table 40 upper containers 13, then, action by Mixing Machine hand 42, as shown in Figure 2, make stirring-head 41 move decline, and cool metal 411,411 and analyzer 412 be impregnated in the container 13 in the position of just going up of container 13.Under this state, shown in the arrow of Fig. 3, with the shape of stirring-head 41 and container 13 rectangular the moving horizontally that match.Thus, the liquation in the container 13 is cooled by cool metal 411,441 and stirs, thereby generates the semi-solid metal of glutinous pulpous state.In addition, by moving horizontally of stirring-head 41 (with reference to Fig. 2), analyzer 412 is accepted the resistance corresponding to the viscosity of semi-solid metal 27, detects this resistance (with reference to Fig. 2) by load cell 413, and measures viscosity based on the detection signal of load voltage 413.So, become desired value in the measured value of viscosity and stirred in the past always, thereby generate the semi-solid metal 27 of regulation solid rate.
In addition, because generating semi-solid metal 27 expends time in, therefore as shown in Figure 1, utilize a pair of semi-solid metal generating apparatus 14,14 alternatively to carry out the generation operation of semi-solid metal 27 (with reference to Fig. 2), can prevent that generation because of semi-solid metal is elongated expend time in circulation timei of causing.In addition, as shown in Figure 3, container 13 is casting product, end protrusion at its longitudinally is provided with handle portion 31, protrude at its other end simultaneously and be provided with, accept frame 721 (with reference to Fig. 5) to what the aftermentioned air of container restoring means 17 (with reference to Fig. 1) blowed mechanism 72 (with reference to Fig. 1), card ends the lug boss 32 of usefulness.
In the semi-solid metal 27 that is full of container 13, for viscosity test device 35, if cool metal 411,411 moves, then analyzer 412 moves in the horizontal direction by cool metal travel mechanism 410, cool metal 411,411 and analyzer 412 are cognitive for for example compliance voltage V1 with the masterpiece of being accepted from semi-solid metal 27 by load cell 413, ask by power-viscosity conversion mechanism 416 subsequently and calculate viscosity B.
In Fig. 3, because cool metal 411,411 and analyzer 412 form one, so analyzer 412 can cooperate the rectangle action of cool metal 411,411 and work.Its result, analyzer 412 also moves in the horizontal direction by cool metal 410 (with reference to Fig. 2) of travel mechanism, and the power from semi-solid metal 27 that cool metal 411,411 and analyzer 412 are accepted can be sent to load cell 413 roughly the samely.
As shown in Figure 1, the forming machine 15 ejaculation sleeve 52 that has mould 51, be communicated with cavity in the mould 51.On penetrate sleeve 52, as shown in Figure 4, offer raw material input port 53, the semi-solid metal 27 that drops into raw material input port 53 is pressed in the cavity, and forms the metal forming product.
As shown in Figure 1, it is identical that carrying manipulator 16 and liquation drain out manipulator 12, is made of six multi-joint manipulators with following structure: i.e. rotation manipulator main body 61 freely; Shake freely first mechanical arm 62 with respect to manipulator main body 61; Shake freely second mechanical arm 63 with respect to first mechanical arm 62; And the wrist 64 of three reel structures of the end of second mechanical arm 63.At the end of wrist 64, be provided with the hand 65 of controlling container 13, hand 65 is controlled the handle portion 31 of container 13.So, by carrying manipulator 16, control semi-solid metal in the described a pair of semi-solid metal generating apparatus 14,14 and generate container 13 on a side's who finishes the mounting table 40 of semi-solid metal generating apparatus 14, action by carrying manipulator 60 is with the raw material input port 53 of container 13 conveyances to the ejaculation sleeve 52 of forming machine 15, by container 13 being tilted and the semi-solid metals in the container 13 being put in the raw material input port 53.In addition, when dropping into, make container 13 vibrations, make not residual as far as possible semi-solid metal in the container 13 by being disposed at handle 65 machine that shakes (not shown) that adds nearby.Here, hand 65 is constituted as allows the shake structure that moves of direction of adding of container 13, though by locking mechanism container 13 is moved adding the direction of shaking usually,, makes container 13 by unlocking by adding the machine vibration that shakes when semi-solid metals are dropped in raw material input port 53.
Become empty container 13 by dropping into semi-solid metal, arrived container restoring means 17, and the recovery of implementing to stipulate is handled by conveyance to raw material input port 53.As shown in Figure 5, container restoring means 17 has: spatula mechanism 71, and its semi-solid metal that will be attached in the container 13 scrapes off; Air blows mechanism 72, and it is cooled containers 13 and remove the adhesion metal that is attached in the container 13 by blow air in container 13; Testing agency 73, it detects it during the adhesion metal more than the remaining prescribed level in container 13; Cleaning agency 74, its cleaning container 13 inside; Coating mechanism 75, it is at container 13 inner coating releasing agents.
At reference Fig. 6 and Fig. 7, spatula mechanism 71 is provided with scraper plate 713, and it is provided with by cantilever 712 at the end of the support 711 that extends obliquely upward from pillar 710.Scraper plate 713 has: flat first 713a of scraper portion of wide cut; And in the mode of the central portion outside of the 713a that outwards stands on the first scraper portion second 713b of scraper portion of fixing roughly L word shape.In addition, cantilever 712 by the back shaft 712a of its cardinal extremity, joins to rotate to freely the mode of shaking with upper and lower on support 711.Therefore, by spring 712b with cantilever 712 pressure holdings below.Usually make cantilever 712 remain on the inclination attitude of regulation by the backstop 712c that is fixed in support 711.
Here, if the semi-solid metals in the container 13 are put into raw material input port 53 (with reference to Fig. 4), inner face (below, be designated as and drop into wall) the last semi-solid metal of 13a of sidewall of container 13 that then becomes downside when dropping into is residual with bigger block.Therefore, by carrying manipulator 16 (with reference to Fig. 1), will control because of becoming empty container 13 former states, and conveyance is to the configuration portion of spatula mechanism 71 to raw material input port 53 input semi-solid metals.Scraper plate 713 moves in the mode of inserting container 13 inside under the state of container 13 below tiltedly, in the mode of the container bottom marginal portion of the input wall 13a of first 713a of the scraper portion contacting container 13 container 13 is positioned.
At this moment, cantilever 712 is pressed from backstop 712c, first 713a of scraper portion is pressed against the input wall 13a of container 13 by the elastic force of spring 712b.Container 13 is moved obliquely upward.The semi-solid metal that will be attached to the input wall 13a of container 13 by the first scraper 713a is scalped thus, and discharges from the openend of container 13.This moment, the peristoma 13b of input wall 13a of container 13 residually had a semi-solid metal.Therefore, next, mode with the peristoma 13b of the input wall 13a of second 713b of the scraper portion contacting container 13 positions container 13, and under this state, container 13 is moved in the normal direction (direction perpendicular to paper of Fig. 6) of second 713b of scraper portion.
Thus, the semi-solid metal that adheres to the peristoma 13b of the input wall 13a that residues in container 13 is scalped.
If as above, scalp the semi-solid metal that is attached in the container 13, then, container 13 is moved the configuration portion that air blows mechanism 72 by carrying manipulator 16 (with reference to Fig. 1) by spatula mechanism 71.As shown in Figure 5, air blows mechanism 72 and has: that supports under container 13 state down accepts frame 721; And by accepting that frame 721 is supported and to a plurality of air nozzles 722 of container 13 inner ejection air.Container 13 by the action of carrying manipulator 16 (with reference to Fig. 1) with downwards towards the posture of accepting frame 721 and by mounting, in this state from nozzle 722 ejection air.Thus, container 13 is by the cooling that blows of air, and adheres to that the semi-solid metal that residues in container 13 inner faces is solidified and blown and fly.At this moment, if semi-solid metal is residual with bigger block, then it is solidified and blow and fly comparatively difficulty, but, therefore blow mechanism 72 and can remove adhesion metal in the container 13 efficiently by air because the semi-solid metal that residues in the bulk in the container 13 is removed by above-mentioned spatula mechanism.
Here, the cooling processing time (from the ejection time of the air of air nozzle 722) that blows mechanism 72 according to air should be set at cooperation container 13 is cooled to the set point of temperature time necessary.Therefore, after the recovery processing undertaken by container restoring means 17 finishes, measure the temperature of container 13 by not shown temperature measuring mechanism, and by this temperature feedback is adjusted the cooling processing time that air blows mechanism 72.In addition, if semi-solid metal adheres to bigger piece in container 13, then container 13 becomes and is difficult to cooling, makes cooling processing time set thereafter too much because of cooling off deficiency.Yet, in the present embodiment,, therefore do not produce related problem owing to the bulk of semi-solid metal is removed in advance by spatula mechanism 71.But, in the cooling of container 13, need the time to a certain degree, in order to prevent to make circulation timei elongated because of this cooling, and and establish a pair of air and blow mechanism 72, and make the mode of utilizing two air to blow mechanism 72,72 and alternatively carrying out the cooling processing of container 13.So, with container 13 mountings of this use after a side air blows mechanism 72, control container 13 mounting blows the processing of mechanism 72 in the opposing party's air after by carrying manipulator 16 (with reference to Fig. 1), and with the configuration portion of these container 13 conveyances to testing agency 73.
Testing agency 73 constitutes by being installed on the limit switch 731 of pallet 76 of setting that sidepiece erects that blows the configuration portion of mechanism 72 at air.On limit switch 731, be provided with to the contact terminal 732 of transferring extension.So, the mode that container 13 is in posture upwards and contact terminal 732 is inserted the inside of container 13 with it is promoted with manipulator 16 by conveyance, and institute's fixed gap makes container 13 be parallel to its inner face and moves in the empty state between the inner face of container 13 being orientated as container 13 and contact terminal 732.Thus, if the adhesion metal of the size more than residual above-mentioned gap on the inner face of container 13, then this adhesion metal is overlapped on the contact terminal 732, and opening limit switch.Therefore, when opening limit switch 731, container 13 is discharged to beyond the production line, and the recovery of carrying out container 13 beyond production line is handled.In addition, if from carrying out processing as above-mentioned spatula mechanism 71 to carrying out the processing that air blows mechanism 72, then the residual probability of the adhesion metal of the size more than the above-mentioned gap on the inner face of container 13 becomes extremely low, therefore, need the frequency of the recovery processing of production line container 13 in addition also to become extremely low.
When limit switch 731 is not opened, when promptly not having the adhesion metal more than the residual prescribed level, container 13 conveyances are arrived the configuration portion of brushing mechanism 74 by carrying manipulator 16 in container 13 inside.
Cleaning agency 74 is located at the top of pillar 740, and has the brush 741 that extends obliquely upward, and the not shown motor that passes through of brush 741 rotates.Therefore, by carrying manipulator 16 container 13 is being moved in the mode that state below tiltedly and brush 741 insert containers 13 inside, and after container 13 being positioned to the inner face of brush 741 contacting containers 13, container 13 is being relatively moved with respect to brush 741.Thus, remove the thin sheet metal and the old coated film that residue in container 13 inside, the surface roughness of the inner face of container 13 is recovered well.At this moment, though a large amount of adhesion metal arranged if the inside of container 13 is residual, then might produce the wearing and tearing of brush 741, but not have adhesion metal more than the residual given size, so can prevent the wearing and tearing of brush 741 in advance because detected container 13 inside by testing agency 73.In addition, spatula mechanism 73 and cleaning agency 74 in abutting connection with and dispose, and be provided with attachment that acceptance removed by these spatula mechanisms 73 and cleaning agency 74 from container 13 place case 77.
If the processing that end is undertaken by cleaning agency 74 is then passed through carrying manipulator 16 with the configuration portion of container 13 conveyances to coating mechanism 75.Coating mechanism 75 has: the casing 751 that is installed on pallet 76; And the spraying nozzle 752 that is arranged at the releasing agent of casing 751 inside.Therefore, container 13 is inserted in the casing 751 by carrying manipulator 16, and by the inner face coating releasing agent of spraying nozzle 752 at container 13.
Finish the processing undertaken by coating mechanism 75 if so, as shown in Figure 1, by carrying manipulator 16, with container 13 mountings on the mounting table 40 of that semi-solid metal generating apparatus 14 that at first takes out container 13.Then, control by mounting on the mounting table 40 of another semi-solid metal generating apparatus 14 and generate the container 13 of semi-solid metal with carrying manipulator 16, and with these container 13 conveyances to forming machine 15.So, Yi Shang action repeatedly, and make the moulding product continuously.
In addition, if the generation of the semi-solid metal of each semi-solid metal generating apparatus 14 finishes, then undertaken handling for the recovery of stirring-head by stirring-head restoring means 18.As shown in Figure 8, stirring-head restoring means 18, purchased: spatula mechanism 81, it scalps the semi-solid metal of the analyzer 412 (with reference to Fig. 2) that is attached to stirring-head 41 (with reference to Fig. 2); Cooling body 82, it is put into water with cool metal 411,411 (with reference to Fig. 2) and analyzer 412 and cools off; Coating mechanism 83, it is coated with releasing agent on cool metal 411,411 and analyzer 412; Heat preservation mechanism 84, it is incubated cool metal 411,411 and analyzer 412.
As shown in Figure 9, spatula mechanism 81 has a pair of scraper plate 811,811 of clamping analyzer 412.Two scraper plates 811,811, by the movable body 813 of advance and retreat by the cylinder 812 on the base station 810, opening and closing freely, and by spring not shown among the figure by pair gesture in the state that closes side and supported.At the leading section of base station 810, upright being provided with is located at 811,811 of two scraper plates and made the guide rail 814 that separates more than the thickness of slab of two scraper plates 811,811 with analyzer 412.So, after the generation of semi-solid metal finishes, by Mixing Machine hand 42 stirring-head 41 is moved in the mode that analyzer 412 is positioned at the place ahead of base station 810, and decline stirring-head 41, so that the upper end of analyzer 412 and two scraper plates 811,811 become equal height.In addition, in this state, stirring-head 41 is positioned the top of the end of tank 821 described later (with reference to Fig. 8).So, as shown in Figure 8, on tank 821, cover, be formed be positioned at stirring-head 41 just under opening 824.
Next, as shown in Figure 9, two scraper plates 811,811 are advanced towards the place ahead of base station 810 by cylinder 821.Here, be formed with recess 811a at the tail end medial surface of each scraper plate 811, when scraper plate 811 advanced to the position of this recess 811a butt guide rail 814, the opening of two scraper plates 811,811 that produced by guide rail 814 was disengaged.Analyzer 412 by elastic force be clamped between two scraper plates 811,811.Next, stirring-head 41 is risen.Thus, two scraper plates 811,811 are moving relatively down with respect to analyzer 412, and the semi-solid metal that is attached to analyzer 412 is scalped.The semi-solid metal of scalping from analyzer 412 drops into the tank 821 by opening shown in Figure 8 824.
To be attached to analyzer 412 semi-solid metals by spatula mechanism 81 if so and scalp, then stirring-head 41 is arrived the configuration portion of cooling body 82 by conveyance by the action of Mixing Machine hand 42.Cooling body 82 has the tank 821 of the water that fills about 70 ℃ of temperature.In tank 821, be provided with the first entry portion 822 and the second entry portion 823.In the first entry portion 822, as shown in figure 10, be provided with and place analyzer 412, the compartment 822a that its water does not immerse.Therefore, if with agitator 41 move to the first entry portion 822 directly over position and make it to descend, then analyzer 412 is inserted into compartment 822a, only cool metal 411 is dropped in the water.The temperature of the cool metal 411 after the generation just of semi-solid metal becomes near 600 ℃ high temperature, if cool metal 411 is dropped in the water, then Shuitu is so seethed with excitement, because of the situation of seething with excitement suddenly makes adhesion metal peel off from cool metal 411.Therefore, by cool metal 411 is dropped into about 60 seconds in the water, and be cooled to set point of temperature (for example, 100～120 ℃).
If the cooling of the cool metal 411 in the first entry portion 822 finishes, then next, as shown in Figure 8, make stirring-head 41 move to the second entry portion 823 directly over position and make it to descend.Do not have compartment 822a in the second entry portion 823, cool metal 411 and analyzer 412 are together dropped in the water.Here, in analyzer 412, after the processing that spatula mechanism 81 carries out, semi-solid metal is residual with the film shape.Because the thermal capacity of analyzer 412 is less, thus the situation of the boiling of the water during entry die down, even but like that, the semi-solid metal of film shape also peels off effectively from analyzer 412.In other words, if do not consider spatula mechanism 81, then because the thermal capacity of analyzer 412 is less, so, the situation that the situation of the unexpected boiling of water is peeled off for because of entry the time, because a little less than the unexpected boiling of water, therefore residual on analyzer 412 have a semi-solid metal.Therefore,, make semi-solid metal form the film shape by spatula mechanism 81 in advance by purchasing spatula mechanism 81, perhaps, until peeling off to such an extent that do not exist.But for analyzer 412 is not exceedingly cooled off, compole is short during the entry of the second entry portion 823, for example is set at about 1 second.
In addition,, also can carry out in the following way, promptly be provided with and place cool metal 411 and compartment that water is not invaded, only make analyzer 412 entry in the second entry portion 823.In addition, also can make analyzer 412 drop into the first entry portion 822 in advance, drop into the second entry portion 823 again.
If after the processing such as above-mentioned end carried out in the cooling body 82, then stirring-head 41 conveyances are arrived the configuration portion of coating mechanism 83 by Mixing Machine hand 42 (with reference to Fig. 1).Coating mechanism 83 is made of the liquid bath 831 of taking in releasing agent.So, by Mixing Machine hand 42 stirring-head 41 position directly over the liquid bath 831 is descended, cool metal 411 and analyzer 412 be impregnated in the releasing agent liquid in the liquid bath 831, and releasing agent is coated cool metal 411 and analyzer 412.
The processing that coating mechanism 83 if so carries out finishes, and then stirring-head 41, is arrived the configuration portion of heat preservation mechanism 84 by conveyance by Mixing Machine hand 42.Heat preservation mechanism 84 is by incubator 841 formations of internal heater (not shown).So, by Mixing Machine hand 42 stirring-head 41 position directly over the incubator 841 descending, and cool metal 411 and analyzer 412 are inserted in the incubator 841, both are incubated in about 100 ℃ temperature with cool metal 411 and analyzer 412.Thus, make the releasing agent drying of coating on cool metal 411 and the analyzer 412.
Thereafter, in Fig. 1, make the mounting table 40 of container 13 mountings by carrying manipulator 16 in semi-solid metal generating apparatus 14, drain out manipulator 12 when this container 13 is poured into a mould liquations by liquation again, stirring-head 41 mentioned from heat preservation mechanism 84 (with reference to Fig. 8) and move the generation of beginning semi-solid metal in mounting table 40.
As above, because make container 13 and stirring-head 41 reset into needed state well by container restoring means 17 and stirring-head restoring means 18, thus can generate semi-solid metal well, and improve the quality of metal forming product.
In Figure 11, the device by using Fig. 2 is investigated the viscosity of the semi-solid metal that is full of container.In addition, stirring and initial stage of cooling, be difficult to measure stable viscosity, therefore showing the viscosity behind the initial noise of elimination because of the noise of rabbling mechanism after just having entered makes greatly.
According to the situation of container, analyzer moves repeatedly, stops and change direction.For this reason, curve fluctuates up and down.
Try only to take out analyzer with the data of certain speed when same direction moves.That is to say,, then can access the curve Q of top rising to the right as if peak value P1, P2..., the PN of connection+side.
Yet semi-solid metal is the mixture of liquid phase and solid phase, is accompanied by reducing through excess temperature of time, and solidifying the ratio that makes solid phase because of liquid phase increases.Its result is along with time viscosity increases.Thus, even transverse axis is become solid rate, also obtain the curve of curve of approximation Q.Figure below is based on this consideration disposal data and the curve that obtains.
In Figure 12, can represent solid rate with transverse axis, the longitudinal axis is represented viscosity, and to its curve R that describes on the upper right side, to rise.If every kind of alloy is made this curve R, then can ask and calculate target viscosities A by following main points.
Definite conduct is the target solid rate of the molten aluminium alloy of the aluminium alloy compression casting raw material shown in the transverse axis for example, obtain from the intersection point of this target solid rate on line (1) that direction is vertically upward extended and curve, the line (2) that will be vertically intersected on the viscosity axle from this intersection point extends and determines as target viscosities A with point that the viscosity axle intersects.
Given metal ingredient is prepared the solid rate of semi-solid metal of the glutinous pulpous state of expression and the relevant chart of viscosity, can be pre-determined target viscosities, and can enter operation thereafter swimmingly corresponding to the target solid rate.
In Figure 13, use device illustrated in fig. 2, measure compliance voltage, and this measured value (* mark) is described and obtained curve S for the fluid of known-viscosity.If this curve S then can be asked the viscosity B that calculates this moment with following main points from measured value (compliance voltage).
On transverse axis, obtain the compliance voltage of measuring by load cell, obtain the intersection point on the line (3) that extends vertically upward from the compliance voltage of being measured and the curve, the line (4) that will intersect vertically with the viscosity axle from this intersection point extend and with the point that the viscosity axle intersects, determine as viscosity B.
Figure 14 represents the flow chart of the solid rate management method of semi-solid metal of the present invention.ST * * the expression step number.
ST01: at first, prepare the solid rate of semi-solid metal and the correlation diagram (with reference to Figure 12) of viscosity for given metal ingredient.
ST02: use the correlation diagram of in ST01, being prepared, and determine target viscosities A (with reference to Figure 12) corresponding to the target solid rate.
ST03: the semi-solid metal that is full of container is stirred and begins to cool down.
ST04: the cooling semi-solid metal, and, ask calculation viscosity B (with reference to Figure 13) by power-viscosity conversion mechanism by load cell mensuration compliance voltage.
ST05: if resulting viscosity B then enters more than target viscosities A in the operation of ST04
If ST06 and finish cooling viscosity B miss the mark viscosity A, then continues cooling until becoming more than the target viscosities A.
Like this because the present invention manages solid rate by detecting target viscosities A, so can get rid of the variation of cooling velocity and the influence of time, than with the existing management of being undertaken by the time, can improve the management precision of the solid rate of semi-solid metal significantly.
In another embodiment of Fig. 2 shown in Figure 15, device for measuring viscosity 36, by its link mechanism 44 of using mechanical arm 43 to move, the power from semi-solid metal 27 with cool metal 411,411 is accepted is sent to load cell 413.Load cell 413, the power from semi-solid metal 27 that will accept by link mechanism 44 is confirmed as compliance voltage V1.After this, by power-viscosity conversion module 416 compliance voltage V1 is scaled viscosity B.
In this case, device for measuring viscosity 36, by its link mechanism 44 of using mechanical arm 43 to move, will be from cool metal 411,411 power of being accepted that in container 13, move, be sent to load cell 413, therefore there is no need on analyzer 412 (not shown)s also to there is no need to specify the position of analyzer in conjunction with load cell.
In another other embodiment of Fig. 2 shown in Figure 16, viscosity test device 37 is structures, it is characterized by by constituting with lower member: promptly cool metal 411,411; The analyzer 412 of cantilever beam shape; Measure the load cell 413 of the power that this analyzer 412 accepted; Fix the support 413b of this load cell; The fixed component 47 of this analyzer 412 is installed; Make these analyzers 412, load cell 413, support 413b, be in fixed component 47 motor rotating 46 of one with analyzer 412; Be used for the physical quantity viscosity of conversion, possess the power-viscosity conversion mechanism 416 of force transducer structure 414 and viscosity conversion mechanism 415 from load cell 413.
That is to say, in Figure 16, analyzer 412 is not that one this point and Fig. 2 are different with shown in Figure 2 cool metal travel mechanism 410, and this analyzer 412 rotates by motor 46, thereby plays the effect that the power that will be accepted from semi-solid metal 27 is sent to load cell 413.Load cell 413 is accepted analyzer 412 from semi-solid metal 27 masterpiece is that compliance voltage V1 confirms.By power-viscosity conversion mechanism 416 compliance voltage V1 be scaled viscosity B thereafter.
In this case, because analyzer 412, by cool metal 411,411 stirrings of in container 13, moving its viscosity is become in certain semi-solid metal 27, further drive and rotate, therefore the power of being accepted can be sent to load cell 413 from the liquation of homogeneous state by motor 46.
In Figure 17, the analyzer 412 that has cool metal 411,411 and be disposed at the central authorities of the semi-solid metal 27 that is full of container 13.Cool metal 411,411 moves according to the rectangle as arrow (5) in semi-solid metal 27, thereby the semi-solid metal 27 that is full of container 13 is stirred.The circular arc that while analyzer 412 is described as arrow (6) by motor moves, thereby the semi-solid metal 27 around the analyzer 412 is stirred.
Cool metal 411,411 is with the semi-solid metal in the rectangle stirred vessel 13 27, and analyzer 412 is described circular arc to semi-solid metal 27 and stirred in the central authorities of semi-solid metal 27.Its result, analyzer 412 can be sent to load cell 413 with from forming fully the power that liquation received of state uniformly by these two stirring of cool metal 411,411 and analyzer 412 self.
In addition, in device for measuring viscosity of the present invention, though it is cool metal 411,411 does not move toward each other but former state moves with rectangle in semi-solid metal 27 regularly, when also can be cool metal 411,411 self with rotation/revolution etc. move, mobile in semi-solid metal 27.
In addition, moving of (for example zigzag) beyond the rectangle also can be done, even the part of constant airspeed is less also passable by cool metal 411,411 and the cool metal travel mechanism 410 that comprises cool metal 411,411 in semi-solid metal 27.
In Figure 18, manufacturing line 90 is made of following structure: liquation keeps stove 11, and it remains on temperature more than the fusing point with metal; Ladle 25, it is kept stove 11 to supply with the once liquation of amount from this liquation; First manipulator 92, it is transported to CCTV 91 with ladle 25; Container 13, its mounting are in the CCTV 91; Rabbling mechanism 93 (not shown, as to give over to aftermentioned in detail), it stirs the liquation in this container 13; Agitator restores platform 94, and its liquation etc. that will be attached to this rabbling mechanism 93 is removed and restored; Second manipulator 96, it makes rabbling mechanism 93 restore between platform 94 and the CCTV 91 reciprocal in this stirring; Injection molding mechanism 97, it is as having the forming machine that penetrates sleeve 52; The 3rd manipulator 98, it is transported to container 13 and penetrates sleeve 52; Prep stand 101, it is to becoming container 13 cleanings and the coating behind the sky; Cooling bench 103, its air that has container 13 coolings after cleaning and the coating blows mouth 102; And warm table 104, it heats container 13 when the running beginning.
In addition, be 60.7W/mK with respect to the pyroconductivity of carbon steel, the pyroconductivity of SCH12 is 14.7W/mK.
If the pyroconductivity of container is bigger, then the end of liquation (position that contacts with container) becomes the low temperature of certain degree with respect to the center of liquation, produces temperature difference in liquation.
Here, if the SCH12 container made, then the temperature difference of the center of the liquation that pyroconductivity is little and end is less.That is to say to have melt temperature be easy to become homogeneous and liquation and manage simple advantage.
Effect to the manufacturing line 90 that is made of above structure describes.
In Figure 19, utilize ladle 25 to keep stove 11 to drain out from liquation liquation, and be poured into mounting in the container 13 of CCTV 91.Liquation keeps the temperature T 2 of stove 11 to be measured by temperature sensor 106.
In Figure 20, will restore the rabbling mechanism 93 of platform 94 standbies at agitator, move to CCTV 91, there the liquation in the container 13 is stirred, turn back to agitator after the end and restore platform 94.
In Figure 21, the modulation of will having packed into has the liquation behind the target solid rate and the container 13 of semi-solid metal, and move to and penetrate sleeve 52, and to penetrating sleeve 52 cast.
In Figure 22, become empty container 13 and move to prep stand 101, and remove draff at this, then implement coating.In this stage, with the temperature T 1 of temperature sensor 107 measuring vessels 13.
Next, make temperature and the temperature of liquation maintenance stove and the correlogram that air blows time relation of expression container.And at the example of the air correlation diagram of being made shown in figure below.
The using method of explanation correlogram in Figure 23, if the temperature of measured container is Rt2 in the manufacture process, liquation keep stove temperature (Ft1～Ft4) is Ft2 for example, then the air that should set blow the time and become Tab2.
If only with Tab2 time blow air, container is turned back to the CCTV, liquation is supplied to this container, and stir with rabbling mechanism, then form certain viscosity mixing time before and be almost the regular hour.
The manufacturing process that uses above correlogram is described with Figure 24 and Figure 25.
ST11: because crucible is a room temperature for the first time, so need be heated to the initial temperature of regulation.Whether in order to investigate crucible is for the first time, and whether the investigation crucible temperature is below 100 ℃, if surpassed 100 ℃, and the necessity that does not heat then enters ST13.
ST12: be below 100 ℃ the time in ST11, crucible is heated to initial temperature.
ST13: with the crucible mounting in the CCTV.
ST14: keep stove to drain out from liquation liquation with ladle.
ST15: liquation is supplied to crucible.
ST16: and then carry out the modulation of liquation solid rate.
ST17: will modulate the liquation that finishes and be poured into the ejaculation sleeve.
ST18: penetrate, obtain the moulding product.
Figure 25 represents the manufacturing process before the crucible cooling.
ST19: crucible is cleaned.
ST20: always carry out finishing until the crucible cleaning.
ST21: crucible is implemented coating.
ST22: the temperature T 1 (with respect to the Rt2 of Figure 23) of reading in crucible.
ST23: read in the temperature T 2 (with respect to the Ft2 of Figure 23) that liquation keeps stove.
ST24: temperature T 1, liquation according to crucible keep the temperature T 2 and the correlation diagram (with reference to Figure 23) of stove to determine t cool time (Tab2 that is equivalent to Figure 23).
ST25: the cooling of beginning crucible.
ST26: if the time reaches t, then cooling finishes.
In Figure 26, transverse axis is represented mixing time, and the longitudinal axis is represented frequency.
Though omit detailed explanation, in the prior art, the deviation of mixing time is D.Relatively therewith, according to the present invention, the deviation of mixing time is 0.4 * D, promptly is reduced into existing 40%.
Therefore, we can say according to the present invention the deviation of having improved mixing time significantly.
In addition, illustrated in an embodiment correlogram (temperature of container-liquation keeps the temperature-air of stove to blow-correlation diagram of time) also can be the correlation of mathematical expressionization, the correlation diagram of formization, because formal freedom, and be called correlation diagram.
In addition, the preparation method of correlation diagram also is not limited to the method for embodiment.
Pressure casting method injecting above-described semi-solid metal exemplifies out embodiment, and describes with reference to Figure 27～Figure 34 that is added.The pressure casting method of present embodiment is the slurry-form semi-solidified metal casting that utilizes aluminium, and as the method for the cylinder block 110 of multicylinderengine structure member, it uses die for manufacturing 112 (with reference to Figure 29) and manufactured.At first, countercylinder body 110 describes.
As Figure 27 and shown in Figure 28, cylinder block 110 has: crankcase portion 114, and the cylinder wall 116 that extends from this crankcase portion 114.On cylinder wall 116, be provided with four cylinder barrels 118 arranged in a straight linely.Cylinder block 110 is semi-closure cabin formulas, and the part of water jacket 120 is with respect to the outside opening of cylinder head surface and cylinder wall 116.
Chimeric in each cylinder barrel 118 have each steam-cylinder piston (not shown), can be free to slide.
As shown in figure 29, mold and pattern for casting tool 112 has: the stationary die 122 of crankcase side; The movable mold 124 of cylinder head side; On guide rail, move and form the slip mold 126,128 of the side of cylinder.Movable mold 124 can be advanced and retreat on the vertical direction with respect to stationary die 122, when slip mold 126 can slide on the face of stationary die 122 and slide.Be protruding with the insertion pin 129 that is used to form the hole at movable mold 124.
By these stationary die 122, movable mold 124, slip mold 126,128 and the insertion pin 129 central space portion cavitys 130 that surround form the shape corresponding to cylinder block 110, in this cavity 130, inject the semi-solid metal 27 of aluminium alloy, obtain cylinder block 110 by curing.In addition, in cavity 130, be provided with the core 132,134 that is used to form water jacket 120 (with reference to Figure 28) and is kept by slip mold 126,128.Core 132,134 is narrowly formed in the width of cylinder wall 116 (with reference to Figure 28), and is set as roughly coverage hole portion, and in order to remove easily behind the casting, it can be pulverized.In cavity 130, be provided with not shown exhaust portion.
In addition, mold and pattern for casting tool 112 has: liquation mouth 138, and it has the ejaculation piston 137 that penetrates semi-solid metal 27 in penetrating sleeve 136; And liquation road 140, it is as supplying to the path of cavity 130 from the semi-solid metal 27 that this liquation mouth 138 is supplied with.On the close end of penetrating sleeve 136, be provided with the peristome 136a that drops into semi-solid metal 27.
Here, so-called semi-solid metal 27, what say is to make metal (comprising alloy) form the semi-molten state, perhaps cools off and stirs molten metal and make it become half curdled appearance.Expression heating of metal and directly become the semi-molten state, and cool off again after the fusing fully earlier and become semi-molten state both of these case.This semi-solid metal 27 forms the coexisting state of solid phase and liquid phase.
Penetrate piston 137, under the effect of control part 146, driven, penetrate the position of piston 137 and detect and be provided to control part 146 by sensor 150 by accumulator 148 (oil pressure cylinder etc.).In control part 146,, and make accumulator 148 work based on these parameters based on position and the speed of confirming to penetrate piston 137 from the signal of sensor 150.
Next, by Figure 30 the step of utilizing the mold and pattern for casting tool 112 casting cylinder blocks 110 that so constitute is described.In the following description, handle in proper order according to the step number of mark.ST31:(is also with reference to Figure 29) at first, make 126,128 slippages of slip mold to position near central authorities, and movable mold 124 is overlapped on the slip mold 126,128 and forms cavity 130.In addition, will insert pin 129 and move to assigned position.
S32:(is also with reference to Figure 29) semi-solid metal 27 of the aluminium alloy that will generate in advance puts into ormal weight from peristome 136a by the injection mechanism of regulation and penetrates in the sleeve 136.Thereby semi-solid metal 27 is carried out the viscosity management obtain suitable flowability.At this moment, penetrate the origin position P0 place standby of piston 137 at the more close accumulator 148 of the 136a of ratio open portion.
ST33:(is also with reference to Figure 31) under the effect of control part 146, drive and penetrate piston 137, make its speed VL (with reference to Figure 33) move to the switching position P1 of cavity 130 directions with low speed.Thus, semi-solid metal 27 not from peristome 136a overflow but be moved to liquation mouth 138 near.Switching position P1 is located at the position of the more close cavity 130 of the 136a of ratio open portion.
ST34:(is also with reference to Figure 31) make and penetrate the piston speedup to speed VH (with reference to Figure 33) at a high speed, and semi-solid metal 27 is filled in liquation mouth 138 and the liquation road 140 at high speed.Because move to penetrate piston 137 so at high speed,, can't occur by solidifying or temperature reduces and the flowability that causes reduces so semi-solid metal 27 can be filled at short notice.In addition, because ejaculation work carries out at short notice, so can realize the shortening of circulation timei and the raising of operating efficiency.
ST35:(is with reference to Figure 32, Figure 34) when penetrating piston 137 arrival decelerate position P2, under the effect of control part 146, make the speed that penetrates piston 137 be decelerated to speed VL (with reference to Figure 33), thereby reduce the flow velocity of solid metallic 27.Decelerate position P2 as injecting the more forward point in position of cavity 130 than the leading section of semi-solid metal 27 and set, and is stored in the control part 146.90～97% the set positions decelerate position P2 of the injection phase P3 of ejaculation piston 137 that specifically, can be when injecting in the cavitys 130 with respect to semi-solid metal 27 is initial.
As shown in figure 33, penetrating the preceding semi-solid metal 27 of piston 137 this decelerate position of arrival P2 is high flow rates of speed VH, has bigger inertia force and therefore can not slow down suddenly, but slow down lentamente with the mean flow rate shown in the curve 152.In addition, in the interval of decelerate position P2～injection phase P3, the line that the speed of piston 137 is penetrated in expression is a thick line, and the curve 152 of the mean flow rate of expression semi-solid metal 27 is a fine rule, so difference expression.Because semi-solid metal 27 keeps the character of liquid, so flow velocity is different because of the place according to the sectional area of stream, the curve 152 expression mean values of expression mean flow rate.
ST36:(is also with reference to Figure 34) when penetrating piston 137 arrival injection phase P3, semi-solid metal 27 arrives near the bottleneck 142 of liquation mouth 138 and to cavity 130 and begins to inject.In addition, injection phase P3 is set to, the position of the ejaculation piston 137 when semi-solid metal 27 is injected in the cavity 130 at first, and semi-solid metal 27 also can not arrive and leave liquation mouth 138 bottleneck 144 far away in two bottlenecks 142,144.
When penetrating piston 137 and arriving injection phase P3, the flow velocity of semi-solid metal 27 be decelerated and become with speed VL about equally.After this, penetrate piston 137 by moving continuously, and semi-solid metal 27 is injected cavity 130 inside with speed VL (with reference to Figure 33).Semi-solid metal 27 makes that because of having suitable viscosity being involved in of gas is less, and than when penetrating the input of sleeve 136, temperature reduces less so mobile also better, can suitably be filled in the cavity 130.In addition, less because temperature reduces, so the viscosity of semi-solid metal 27 does not exceedingly uprise, core 132,134 is not fragile yet.
Suppose that this moment is shown in the imaginary line 154 of Figure 33, average speed is maintained at behind the speed VL and former state is injected semi-solid metal 27, then because core 132,134 is narrower and can form all to pieces in the mode of removing easily, therefore might be damaged because of the bump of full-bodied semi-solid metal 27.
Relatively therewith, in the pressure casting method of present embodiment, comparing with other liquations and have higher viscosity though be injected into semi-solid metals 27 in the cavity 130, is the VL of low speed because of flow velocity, so needn't worry to understand damaged core 132,134.
In addition, when semi-solid metal 27 is injected cavity 130,, can access the further high-quality cylinder block 110 that has reduced blow hole and oxidation by cavity 130 being vacuumized or carrying out reduced pressure treatment.
ST37: as shown in figure 33, semi-solid metal 27 is filled into cavity 130 and pressurization when arriving final filling position P4, and the forward motion that penetrates piston 137 stops.At this moment, semi-solid metal 27 fully is filled in the cavity 130 by bottleneck 142,144, and remaining semi-solid metal 27 is discharged to gas discharge section.
ST38: by behind the cooling curing fully, make movable mold 124 at semi-solid metal 27, slip mold 126,128 inserts pin 129 away from cavity 130.Form as shown in figure 28 cylinder block 110 and the not shown part that do not need thus.Do not need part as and liquation mouth 138 shown in Figure 29, liquation road 140, bottleneck 142,144, and the corresponding position of gas discharge section and forming, and remove this by the step of regulation and do not need part, and obtain cylinder block 110 with cylinder block 110.
ST39: core shown in Figure 34 132,134 is pulverized and from cylinder block 110, removed by blow air, blast or water spray etc., thereby form water jacket 120 (with reference to Figure 28).
As mentioned above, according to the pressure casting method of present embodiment, use semi-solid metal 27 can suppress the generation of blow hole as founding materials.In addition,, therefore do not destroy core 132,134, made core so there is no need high strength ground owing to semi-solid metal 27 is decelerated the inside that is injected into cavity 130.In addition, because semi-solid metal 27 moved with the high speed short time, can prevent that therefore temperature from reducing the reduction of the flowability that causes before injecting cavity 130.
Pressure casting method involved in the present invention is not limited to above-mentioned embodiment, does not adopt all modes with certainly not breaking away from main idea of the present invention.
In the present invention, the management precision of the solid rate by improving semi-solid metal, and container and the rabbling mechanism that uses for semi-solid metal restored processing really, and the deviation of inhibition semi-solid metal mixing time, improve the cavity method for implanting of semi-solid metal simultaneously, and the quality of seeking the die cast product improves, productive raising.Therefore, the present invention is suitable for producing metal forming product such as aluminium alloy.
Claims (23)
1. the manufacturing line of metal forming product has:
The semi-solid metal generating apparatus, thus it utilizes rabbling mechanism that liquation is cooled off and stirs the generation slurry-form semi-solidified metal, and described rabbling mechanism has cool metal and the viscosity measurement probe that is impregnated in the described liquation that is captured in the container;
The rabbling mechanism restoring means, it is implemented the recovery of regulation and handles after this semi-solid metal generates to described rabbling mechanism, it is characterized in that,
Described rabbling mechanism stirs this semi-solid metal and measures the viscosity of this semi-solid metal, moves in the horizontal direction and run through this semi-solid metal,
When described rabbling mechanism runs through this semi-solid metal and moves, be added in described viscosity measurement is used to measure this semi-solid metal with the power of the horizontal direction on the probe viscosity.
2. the manufacturing line of metal forming product according to claim 1 is characterized in that,
Described container can be taken in the liquation of ormal weight;
Also have:
Forming machine, its with described semi-solid metal as raw material and shaping metal forming product;
Carrying device, its with described container from the conveyance of described semi-solid metal generating apparatus to described forming machine, and the described semi-solid metal in the described container dropped into described forming machine;
The container restoring means, it is implemented the recovery of regulation and handles become empty described container owing to the input to the described semi-solid metal of described forming machine.
3. the manufacturing line of metal forming product according to claim 1 is characterized in that,
Described semi-solid metal generating apparatus contains the device for measuring viscosity of the viscosity of measuring described semi-solid metal,
Described device for measuring viscosity is made of following mechanism:
Described rabbling mechanism, it stirs the described slurry-form semi-solidified metal that enters in the described container;
The described probe of cantilever beam shape, it inserts the bottom in the described semi-solid metal;
Probe travel mechanism, it moves described probe;
Load cell, it measures the power that described probe is subjected to from described semi-solid metal;
Change-over mechanism, it is according to by the power that described load cell detected, the viscosity of the described semi-solid metal that converts.
4. the production line of manufacturing moulding product according to claim 1 is characterized in that,
Described semi-solid metal generating apparatus contains the device for measuring viscosity of the viscosity of measuring described semi-solid metal;
Described device for measuring viscosity is made of following mechanism:
Described rabbling mechanism, it stirs the described slurry-form semi-solidified metal that enters described container;
The described probe of cantilever beam shape, it inserts the bottom in the described semi-solid metal;
Probe travel mechanism, it moves described probe;
Load cell, it measures the power that described probe is subjected to from described semi-solid metal;
Change-over mechanism, according to the convert viscosity of described semi-solid metal of the described power that detects by described load cell,
Described rabbling mechanism restoring means is made of following mechanism:
Cooling body, it makes the described cool metal of described rabbling mechanism and described probe entry and cools off;
Coating mechanism, it is coated with releasing agent on described cool metal and described probe,
Described restoring means also has: spatula mechanism, and it is scalped the described semi-solid metal that is attached to described probe before the processing of being undertaken by described cooling body,
Described cooling body has:
The first entry portion, it has the compartment that water do not immerse and holds described probe, and only makes described cool metal entry;
The second entry portion, it makes described probe entry at least,
And, before described slurry-form semi-solidified metal is stirred, described rabbling mechanism is implemented the recovery of regulation and is handled.
5. the manufacturing line of metal forming product according to claim 1 is characterized in that,
Described rabbling mechanism moves in the horizontal direction along running through this semi-solid metal with the corresponding path of the shape of described container.
6. the manufacturing line of metal forming product according to claim 5 is characterized in that,
Constitute the described cool metal of described rabbling mechanism and described viscosity measurement with probe one and move simultaneously each other along described path.
7. the manufacturing line of metal forming product according to claim 5 is characterized in that,
Described cool metal divides body structure with described viscosity measurement each other with probe and can independently move along different paths.
8. the manufacturing line of metal forming product according to claim 2 is characterized in that,
Described container restoring means has:
Air blows mechanism, and it is by blow air in described container, and with the cooling of this container and remove the adhesion metal that is attached to the container inner face;
Coating mechanism, it is at described container inner face coating releasing agent;
Spatula mechanism, it is scalped the described semi-solid metal that is attached to described container inner face blowed the processing that mechanism carries out by described air before.
9. the production line of manufacturing moulding product according to claim 2 is characterized in that,
The container restoring means has:
Air blows mechanism, and it is blow air in described container, and described container is cooled off and removes adhesion metal in the described container;
Coating mechanism is coated with releasing agent in described container;
Spatula mechanism, it is scalped the described semi-solid metal that is attached in the described container blowed the processing that mechanism carries out by air before,
Carry out following work repeatedly: be cast next time and prepare, and to becoming empty container because of drop into described slurry-form semi-solidified metal to described forming machine, cool off with the stipulated time, remove the adhesion metal in the described container simultaneously, and keep stove to be provided to cooled described container from described liquation the liquation
For cast is next time prepared described stipulated time when becoming the described container cooling behind the sky, keep the temperature of the temperature of stove and empty described container and determine based on described liquation.
10. the manufacturing line of metal forming product according to claim 3 is characterized in that, described rabbling mechanism restoring means is made of following mechanism:
Cooling body, it makes the described cool metal of described rabbling mechanism and described probe entry and cools off;
Coating mechanism, it is coated with releasing agent on described cool metal and described probe,
Described restoring means also has: spatula mechanism, and it is scalped the semi-solid metal that is attached to described probe before the processing of being undertaken by described cooling body,
Described cooling body has:
The first entry portion, it has the compartment that water do not immerse and holds described probe, and only makes described cool metal entry;
The second entry portion, it makes described probe entry at least.
11. the manufacturing line of metal forming product according to claim 5 is characterized in that,
Described spatula mechanism is made of the scraper plate that is installed on assigned position;
Described carrying device is made of multi-joint type manipulator;
The action of described manipulator is controlled to be, control owing to the input to the described semi-solid metal of described forming machine becomes empty described container by described manipulator, and relatively move with respect to described scraper plate, thereby the described semi-solid metal that will be attached to this container inner face is scalped at this point.
12. the manufacture method of metal forming product comprises:
Semi-solid metal generates operation, thereby it cools off liquation by rabbling mechanism and stirs the generation slurry-form semi-solidified metal, and described rabbling mechanism has cool metal and the viscosity measurement probe that is impregnated in the described liquation that is captured in the container;
The rabbling mechanism cuttling, it is implemented the recovery of regulation and handles after this semi-solid metal generates to described rabbling mechanism, it is characterized in that,
Described agitating procedure constitutes by running through the operation that this semi-solid metal moves in the horizontal direction described rabbling mechanism,
Described viscosity measurement operation when running through this liquation at described rabbling mechanism and move in the horizontal direction, constitutes being added in the operation that described viscosity measurement measures with the power on the dipping portion of probe.
13. the manufacture method of metal forming product according to claim 12 is characterized in that, also comprises:
The conveyance operation, liquation by keep the stove cast from liquation with ormal weight is accommodated in described container, after described semi-solid metal in this container generates, with described container from the conveyance of described semi-solid metal generating apparatus to forming machine, and the described semi-solid metal in the described container put into described forming machine;
Forming process, with described semi-solid metal as raw material and the described metal forming product that are shaped.
14. the manufacture method of metal forming product according to claim 12 is characterized in that,
The manufacture method of described metal forming product also includes the solid rate management method of described semi-solid metal;
Described solid rate management method comprises:
The chart preparatory process before described semi-solid metal generates operation, prepares to represent the solid rate of described slurry-form semi-solidified metal and the relevant chart of viscosity in addition to metal ingredient;
Target viscosities is determined operation, utilizes described chart and definite target viscosities corresponding to the target solid rate;
The viscosity measurement operation generates in the operation at described semi-solid metal, and the described semi-solid metal that enters described container is cooled off and measures its viscosity;
Refrigerating work procedure is implemented cooling before described viscosity arrives described target viscosities,
By from the preparation of the relevant described chart of the solid rate of representing described semi-solid metal and viscosity until the cooling of described semi-solid metal finish during in these operation groups of enforcement, thereby make the solid rate of described semi-solid metal consistent with the target solid rate.
15. the manufacture method of metal forming product according to claim 12 is characterized in that,
Described agitating procedure is by described rabbling mechanism is constituted along running through the operation that this semi-solid metal moves in the horizontal direction with the corresponding path of the shape of described container.
16. the manufacture method of metal forming product according to claim 15 is characterized in that,
Constitute the described cool metal of described rabbling mechanism and described viscosity measurement with probe one and move simultaneously each other along described path.
17. the manufacture method of metal forming product according to claim 15 is characterized in that,
Described cool metal divides body structure with described viscosity measurement each other with probe and can independently move along different paths.
18. the manufacture method of metal forming product according to claim 12 is characterized in that,
The manufacture method of described metal forming product also includes the solid rate management method and the described rabbling mechanism restored method of described semi-solid metal;
Described solid rate management method comprises:
The chart preparatory process before described semi-solid metal generates operation, prepares to represent the solid rate of described slurry-form semi-solidified metal and the relevant chart of viscosity in addition to metal ingredient;
Target viscosities is determined operation, utilizes described chart and definite target viscosities corresponding to the target solid rate;
The viscosity measurement operation, when described semi-solid metal generated operation, the described semi-solid metal that the described cool metal pair by described rabbling mechanism enters described container cooled off, and is inserted its viscosity of described probe measurement of described semi-solid metal by its underpart;
Refrigerating work procedure is implemented cooling before described viscosity arrives described target viscosities,
Described rabbling mechanism restored method comprises:
Refrigerating work procedure before described semi-solid metal generates operation, makes the described cool metal of this rabbling mechanism and described probe entry and cools off;
Painting process, it is coated with releasing agent on described cool metal and described probe,
Also comprise: the spatula operation, before described refrigerating work procedure, the described semi-solid metal that is attached to described probe is scalped,
Described refrigerating work procedure is made of following operation:
The first entry operation only makes described cool metal entry;
The second entry operation, it makes described probe entry at least,
And the processing time of the described second entry operation is provided with shortlyer than the processing time of the described first entry operation,
By from the preparation of the relevant described chart of the solid rate of representing described semi-solid metal and viscosity until the cooling of described semi-solid metal finish during in these operation groups of enforcement, thereby make the described solid rate of described semi-solid metal consistent with described target solid rate.
19. the manufacture method of metal forming product according to claim 13 is characterized in that,
Carry out following work repeatedly: be cast next time and prepare, and to becoming empty described container because of drop into described slurry-form semi-solidified metal to described forming machine, cool off with the stipulated time, and keep stove to be provided to cooled described container from described liquation described liquation
For cast is next time prepared described stipulated time when becoming empty described container and cool off, keep the temperature of the temperature of stove and empty described container and determine based on described liquation.
20. the manufacture method of metal forming product according to claim 13 is characterized in that,
Described molding procedure is, by penetrating piston described slurry-form semi-solidified metal penetrated from the liquation mouth, and by liquation road and bottleneck, described semi-solid metal is injected in the cavity that inside is provided with core, thereby obtains the die casting operation of casting product,
Before the leading section of described semi-solid metal is injected in the described cavity,, described ejaculation piston reduces the flow velocity of described semi-solid metal thereby being slowed down.
21. the manufacture method of metal forming product according to claim 14 is characterized in that,
Described rabbling mechanism cuttling is made of following operation:
Refrigerating work procedure makes the described cool metal of this rabbling mechanism and described probe entry and cools off;
Painting process, it is coated with releasing agent on described cool metal and described probe,
Also comprise: the spatula operation, before described refrigerating work procedure, the described semi-solid metal that is attached to described probe is scalped,
Described refrigerating work procedure is made of following operation:
The first entry operation only makes described cool metal entry;
The second entry operation, it makes described probe entry at least,
And the processing time of the described second entry operation is provided with shortlyer than the processing time of the described first entry operation.
22. the manufacture method of metal forming product according to claim 20 is characterized in that,
Described die casting operation, 90%～97% position till the described ejaculation position of piston when described semi-solid metal is injected into described cavity at first of the ejaculation starting position of described ejaculation piston is slowed down described ejaculation piston.
23. the manufacture method of metal forming product according to claim 20 is characterized in that,
Described casting product are cylinder blocks of engine, and form the cooling water cover by remove described core behind described casting.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003190305A JP3990654B2 (en) | 2003-07-02 | 2003-07-02 | Semi-solid metal slurry manufacturing apparatus and control method thereof, and semi-solid metal slurry manufacturing method |
| JP190305/2003 | 2003-07-02 | ||
| JP85569/2004 | 2004-03-23 | ||
| JP85568/2004 | 2004-03-23 | ||
| JP154666/2004 | 2004-05-25 | ||
| JP169326/2004 | 2004-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1819884A CN1819884A (en) | 2006-08-16 |
| CN100364697C true CN100364697C (en) | 2008-01-30 |
Family
ID=34188243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800189944A Expired - Fee Related CN100364697C (en) | 2003-07-02 | 2004-06-29 | Molding of slurry-form semi-solidified metal |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3990654B2 (en) |
| CN (1) | CN100364697C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005021891B4 (en) * | 2005-05-04 | 2011-12-22 | Evgenij Sterling | Method of making pigs and pigs |
| CN109513886A (en) | 2018-12-14 | 2019-03-26 | 珠海市润星泰电器有限公司 | A kind of pulping device of semi solid slurry |
| JP7157109B2 (en) * | 2020-08-20 | 2022-10-19 | Ｍａアルミニウム株式会社 | Viscosity characteristics calculation method and viscosity characteristics calculation program for aluminum alloys |
| CN115493973B (en) * | 2022-11-16 | 2023-05-16 | 深圳市众德祥科技有限公司 | Metal feed viscosity detection system and detection method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63256257A (en) * | 1987-04-13 | 1988-10-24 | Ube Ind Ltd | Pressure casting method using collapsible insert core |
| JPH04124233A (en) * | 1990-09-12 | 1992-04-24 | Leotec:Kk | Manufacture of half-solidified metal |
| CN1122115A (en) * | 1994-01-17 | 1996-05-08 | 皮奇尼铝公司 | Semi-solid metal forming method |
| JPH10211565A (en) * | 1996-11-28 | 1998-08-11 | Ube Ind Ltd | Device for producing precasting metal |
| JPH11197815A (en) * | 1998-01-20 | 1999-07-27 | Honda Motor Co Ltd | Apparatus for producing semi-solidified metal |
| JP2002153945A (en) * | 2000-11-22 | 2002-05-28 | Honda Motor Co Ltd | Method for controlling solid phase ratio of semi- solidified metallic slurry |
| JP2002336946A (en) * | 2001-05-16 | 2002-11-26 | Honda Motor Co Ltd | Apparatus for producing metallic molded product |
-
2003
- 2003-07-02 JP JP2003190305A patent/JP3990654B2/en not_active Expired - Lifetime
-
2004
- 2004-06-29 CN CNB2004800189944A patent/CN100364697C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63256257A (en) * | 1987-04-13 | 1988-10-24 | Ube Ind Ltd | Pressure casting method using collapsible insert core |
| JPH04124233A (en) * | 1990-09-12 | 1992-04-24 | Leotec:Kk | Manufacture of half-solidified metal |
| CN1122115A (en) * | 1994-01-17 | 1996-05-08 | 皮奇尼铝公司 | Semi-solid metal forming method |
| JPH10211565A (en) * | 1996-11-28 | 1998-08-11 | Ube Ind Ltd | Device for producing precasting metal |
| JPH11197815A (en) * | 1998-01-20 | 1999-07-27 | Honda Motor Co Ltd | Apparatus for producing semi-solidified metal |
| JP2002153945A (en) * | 2000-11-22 | 2002-05-28 | Honda Motor Co Ltd | Method for controlling solid phase ratio of semi- solidified metallic slurry |
| JP2002336946A (en) * | 2001-05-16 | 2002-11-26 | Honda Motor Co Ltd | Apparatus for producing metallic molded product |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005021943A (en) | 2005-01-27 |
| JP3990654B2 (en) | 2007-10-17 |
| CN1819884A (en) | 2006-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6165411A (en) | Apparatus for producing metal to be semimolten-molded | |
| EP1375034A2 (en) | Method and apparatus for directional solidification of a metal melt | |
| EP1649951B1 (en) | Molding of slurry-form semi-solidified metal | |
| KR100799645B1 (en) | Method of producing semi-solid metal slurries | |
| CN105821263A (en) | Aluminum alloy automobile steering gear case and superspeed casting preparing method thereof | |
| CN100364697C (en) | Molding of slurry-form semi-solidified metal | |
| US20170087626A1 (en) | Investment-diecasting mold | |
| Liu et al. | Dimensional accuracy and surface roughness of rapid freeze prototyping ice patterns and investment casting metal parts | |
| JP5828602B2 (en) | Press forming method and press forming system of semi-solid metal material | |
| EP2535126B1 (en) | Device and method for obtaining semi-solid sludges | |
| CN102000778A (en) | Method for casting aluminum alloy automobile engine bracket | |
| JP4603280B2 (en) | Metal molded product production line and container restoration method | |
| WO2010078201A1 (en) | Low-pressure sand casting of aluminum alloy cylinder engine parts | |
| JP4295146B2 (en) | Stirring head restoring device and restoring method of semi-solid metal production device | |
| JP2000301315A (en) | Formation of semi-molten metal and apparatus thereof | |
| JP3525085B2 (en) | Equipment for manufacturing metal molded products | |
| JP4257015B2 (en) | Semi-solid metal injection method and apparatus | |
| Midson et al. | A comparison of Thixocasting and Rheocasting | |
| CN117380936A (en) | Shell cleaning treatment method and system for precision investment castings | |
| KR100830006B1 (en) | Method and device for production of metal slurry, and method and device for production of ingot | |
| JP2018015771A (en) | Press molding method of semi-solidified metal material preparation container | |
| JPH10249507A (en) | Temperature measuring method and coating device for metal frame inner surface | |
| CN110000385A (en) | A kind of direct 3D printing device of the liquid bimetallic of ultrasonic wave added and Method of printing | |
| JPH0890146A (en) | Casting method using synthetic resin core and synthetic resin core | |
| JP2000158122A (en) | Casting die cooling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20130629 |