CN1882404A - Casting of metal artefacts - Google Patents
Casting of metal artefacts Download PDFInfo
- Publication number
- CN1882404A CN1882404A CNA2004800345389A CN200480034538A CN1882404A CN 1882404 A CN1882404 A CN 1882404A CN A2004800345389 A CNA2004800345389 A CN A2004800345389A CN 200480034538 A CN200480034538 A CN 200480034538A CN 1882404 A CN1882404 A CN 1882404A
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- mold
- molding
- casting
- melting appartus
- assembly
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/002—Castings of light metals
- B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/04—Casting aluminium or magnesium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/06—Heating or cooling equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- General Induction Heating (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Forging (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a process, casting assembly (10) and casting apparatus for charging a mould (12) with molten metal and solidifying it in the mould to form an artefact, the process including, prior to charging the mould, heating the mould by induction heating to an elevated temperature at which the charging takes place. The assembly (10) includes a mould (12) for casting he artefact and an induction heating arrangement (14), which includes at least one induction coil surrounding the mould, for heating it to an elevated temperature prior to the casting. The apparatus (20) includes the assembly (10) and a melting apparatus (4) for forming a molten charge of metal, the apparatus (40) including a heating arrangement (44) for heating a precursor of the molten charge to melt it.
Description
Technical field
The present invention relates to the casting of metal artefacts technology.The invention particularly relates to casting of metal artefacts technology, relate to the casting assembly that is used for the cast metal product and relate to casting device or the utensil that is used for the cast metal product, they all are suitable for casting light metal product.The light metal here means light metal and alloy thereof, and wherein, one or more light metal proportions surpass 50% weight, and the density of light metal is less than 2.7g/cm
3The fusing point of light metal is usually less than 660 ℃.
Summary of the invention
A first aspect of the present invention; a kind of casting of metal artefacts technology is provided; its method is; the molten metal of in molding or mold, packing into, and this metal is solidified in molding or mold, thus form goods; this technology comprised the following steps: before the molten metal of packing in molding or mold; by eddy-current heating molding or mold are heated to high temperature, after molding or mold reach a high temperature, just begin to pack into.
This technology can comprise the following steps: before heating, purge molding or mold, thus under desirable atmospheric conditions, form goods.Perhaps also can in molding or mold heating process, carry out purge.In other words, this technology can comprise the following steps: with purge gas purge to be carried out in molding or mold, thereby feed under by the atmospheric conditions that purge gas provided before molding or mold charging.Be preferably in the heating of molding or mold and all carry out purge before and in the process, and before charging, interrupt purge.Purge gas can be selected from following gas: argon gas, carbon dioxide and mist thereof.Also can replace above-mentioned gas, and adopt: sulfur hexafluoride (SF
6), it can be used as assist gas.
This technology can comprise the following steps: before the molten metal of packing in molding or mold, sealing or locking molding or mold.In addition, this technology can comprise the following steps: before the molten metal of packing in molding or mold, interrupted to molding or mold supply purge gas.In typical case, when molding or mold reach its operating temperature, interrupt the purge gas supply.To molding or mold when filling with substance, should be filled to till the full capacity of molding or mold.
Can under pressure, feed, and be filled to till the full capacity of molding or mold.Especially, be preferably under the intermittent pressure, to molding or the mold molten raw material of packing into, neither known low-pressure injection moulding, high-pressure injection molding that neither be known.Can under this intermittent pressure of 50KPa-30MPa, feed by injecting molding.Preferably, determine desired or best molding or the mold intermittent pressure of feeding by test.
The applicable following metal of this technology: aluminium, magnesium, lithium, zinc and alloy thereof.This technology preferably is suitable for following light metal: magnesium, aluminium and alloy thereof.
This technology is particularly useful for the casting of following light metal or alloy: wheel rim, such as aluminium or magnesium alloy wheel rim, automotive gearbox, deflecting roller, steering column housing, brake auxiliary component or parts, automobile engine, navigation and aviation with part or parts.Especially, this technology is suitable for casting aluminium and magnesium alloy wheel rim.Like this, these casting product are a kind of motor vehicle wheel rim light metal casting product.
The section thickness of the product that this technology is cast is 1.5-30mm, is generally 2-27mm, and weight is 0.25-30kg, is generally 0.5-20kg.In other words, mo(u)lding is a kind of metallic article, is spaced apart 0.75-15mm between the most approaching part of solid articles each several part and product surface, and product weight is 0.25-30kg.
Importantly, this technology can comprise the following steps: to provide the temperature desired curve to molding or mold, and method is that selectivity adopts eddy-current heating, thereby to the different piece of the filled metal in molding or the mold, promotes to solidify with desirable speed.Like this; can adopt eddy-current heating; thereby the inner surface to molding or mold provides the temperature desired curve; make the inner surface of molding or mold form different temperature sections or zone mutually thus; come the molten metal interior to contact thus, thereby make the different piece of injecting the molten metal in molding or the mold have desirable cooling and solidification rate with injecting molding or mold.
Can come molding or mold are feeded from melting appartus; the capacity of this melting appartus should be able to produce whole variations of molten metal; and can be complementary with the capacity of molding or mold; can be to molding or mold enough molten metals of packing into; and then produce single goods, thereby consume the whole molten raw material that melting appartus provided.In addition; also can come molding or mold are feeded from the melting appartus that relative molding or mold move back and forth; in this technology; melting appartus moves back and forth between charging position and charge position; on charging position, add molten raw material; and on charge position, then will melt raw material from melting appartus and send casting device to.Can in a plurality of moldings or mold, cast; melting appartus of each adapted to its charging; each melting appartus is associated with a molding or mold; can come electrical heating by induction heating apparatus; adopt a multiple power source, provide electric power, thereby carry out eddy-current heating to molding or mold; and adopt a multiple power source, provide electric power to melting appartus.In this technology, can adopt following casting device or utensil.
Another aspect of the present invention; a kind of casting assembly that is used for the cast metal goods is provided; this assembly comprises molding or the mold that is used for cast product; also has an induction heating apparatus; this induction heating apparatus comprises that at least one centers on the induction coil of molding or mold, is used for before the goods casting molding or mold being heated to high temperature.
Induction heating apparatus can be a kind of variable frequency induction heater.
This assembly can comprise a purge gas source of joining with molding or mold, and being used for provides purge gas to the inside of molding or mold.
Molding or mold can be disposable moldings, such as sand molding or mold.Molding or mold also can be reusable molding or mold.Reusable molding or mold can be metallic mold or mold, preferably steel die or mold.Especially, molding or mold can be reusable multicore metallic mold or mold.
For reusable molding or mold, molding or mold can be multicore or polylith molding or mold, comprise two or more pellet.Especially, molding or mold can comprise a plunger tip or jacking block, and the goods foundry goods end that has solidified joins with it movably.Plunger tip or jacking block can have relieving mechanism, are used for delivery article.Under this occasion, molding or mold also can have bottom core or a surperficial core and link to each other with piston one enclose the side core, molding or mold form the fan piece because of the side core.Reusable molding or mold can be the fluid pressure type operations, the lifting campaign of opposite side core piston and plunger tip, thus foundry goods is contacted with the pin rod of relieving mechanism.Molding or mold have the charging opening, are used for the light metal that filling has been melted in molding or mold.In one embodiment of the invention, the opening of molding or mold passes its bottom or surperficial core, is used for from the bottom to molding or mold charging.In preferential embodiment, reusable molding or mold are the hydraulic operation formula, and its bottom or surperficial core are provided with the metal opening of packing into, are used for from the bottom to molding or the mold molten metal of packing into.
Induction heating apparatus can comprise two or more induction coil, separate action, thus in molding or mold, reach the temperature desired curve.In other words, induction heating apparatus can comprise a plurality of at least two induction coils, and it is self contained function or separate action separately, thereby molding or mold are heated to above-mentioned high temperature, and the inner surface to molding or mold provides the temperature desired curve simultaneously.
The casting assembly can be a permanent structure, in the on-the-spot long-term or permanent installation of short-term of production facility, is used to cast the light metal goods.The casting assembly preferably is not a permanent structure, but movably, thereby can move to another facility from above-mentioned production facility.
The invention still further relates to the casting device that is used to cast light metal, this device comprises a casting assembly, be used to cast above-mentioned light metal, also comprise a melting appartus, be used to form deposite metal, thereby carry out the metallic article casting in the casting assembly, this melting appartus comprises a heater, be used for the molten metal raw material is heated, thereby reach the formation temperature of molten metal raw material.
The size of melting appartus preferably can melt the raw metal that the size of its size and molding or mold is complementary, thereby in the goods casting, can use up the whole raw materials in molding or the mold.Especially; the capacity of melting appartus should be able to produce whole variations of molten metal; and can be complementary with the capacity of molding or mold, thereby the casting of single product can consume the whole molten raw material that melting appartus is provided fully in molding or the mold when full capacity is used.
The heater of melting appartus can be a kind of induction heating apparatus, and it comprises at least one induction coil.Yet under arbitrary occasion of molding or casting mold apparatus, melting appartus comprises one or more load coils, and induction coil can be electrically connected with its power supply.
Melting appartus can be cast assembly and move back and forth between charging position and charge position relatively, adds molten raw material on the charging position of melting appartus, and on charge position, then will melt raw material from melting appartus and send the casting assembly to.Like this, casting device can be equipped with track, and melting appartus is installed in orbit via wheel, casts relatively at melting appartus during the reciprocating motion of assembly, and wheel can roll along track.
Casting device can comprise two or more cast the melting appartus of assembly and equal number, each is cast assembly and shares a heating multiple power source, each melting appartus is shared a heating multiple power source, and the fully phase failure in the goods casting in corresponding casting process is shared thereby carry out this.In other words, casting device can comprise a plurality of casting assemblys and identical a plurality of melting appartus, each casts assembly and an above-mentioned melting appartus matches, each melting appartus and an above-mentioned casting assembly match, each is cast assembly and shares a heating multiple power source, and each melting appartus is shared a heating multiple power source.
Above-mentioned facility is particularly suited for following occasion: promptly, the heating facility of melting appartus still is a kind of eddy-current heating facility simultaneously, and heating power supply is a kind of electric supply.
Followingly the present invention is described with reference to non-limiting example and diagram.
Description of drawings
In the accompanying drawing,
Fig. 1 is the side expanded view of each parts of light metal goods casting assembly of the present invention;
Fig. 2 is the side expanded view that the present invention casts used each parts of melting appartus that are used to form molten light metal of assembly;
Fig. 3 is the graphics that the present invention casts the casting device of light metal goods;
Fig. 4 is the graphics of casting device of the present invention, and it comprises two casting devices among Fig. 3, is used to utilize method of the present invention to cast the light metal goods;
Fig. 5 is a series of reduced graphs of the casting device of Fig. 3 among the present invention, the casting method of expression light metal goods, and these goods are the magnesium alloy wheel rim, and adopt casting device shown in Figure 3; And
Fig. 6 is another serial reduced graph of the casting device of Fig. 3 among the present invention, the casting method of expression light metal goods, and these goods are magnesium alloy wheel rim shown in Figure 5.
The specific embodiment
Referring to Fig. 1, symbol 10 expressions are used for casting the casting assembly of light metal goods of the present invention.Casting assembly 10 comprises a molding or a mold 12 that is used for cast magnesium alloy wheel rim light metal goods, and it also comprises an induction heating apparatus 14 around molding or mold 12.
Molding or mold 12 are a kind of multicore or reusable steel die of polylith or mold; comprise a top pellet 16; the goods foundry goods end that has solidified joins with it movably; also have a bottom or surperficial pellet 18; it generally has charging opening or through hole 20; be used for from down towards molding or mold 12 chargings, also have four side cores 22 with respective pistons 24 adapteds, it is block-shaped that side core 22 makes molding or mold 12 have a fan.Molding or mold 12 are the hydraulic operation formula, the lifting of the piston 24 of opposite side core 22 and relative plunger tip 16 and any light metal casting spare (not shown), thus move upward away from remaining pellet.
Referring to Fig. 2, be used to form the melting appartus of molten light metal among symbol 40 expression the present invention.Melting appartus 40 comprises a low-carbon (LC)-or medium carbon steel hollow cylinder or sleeve 42; its cross section is circular; be used for the molten light metal of carrying; also be convenient to the heating of light metal raw material, also comprise an induction heating apparatus 44, it has an induction coil 46; be used for the material in cylinder or the sleeve 42 is heated; thereby form molten filling raw material, also comprise a molten metal conveyer 48, be used for molten light metal is sent to from cylinder or sleeve 42 molding or the mold 12 of cast product.
Melting appartus 40 also comprises an inertia source of the gas 50, and being used for provides argon gas in cylinder or sleeve 42, thereby melts light metal under inert gas conditions, also the lower end or the bottom of cylinder or sleeve 42 is cooled off, thereby forms following secondary seal.
In use, induction coil 46 is installed on the metal transfer assembly 48, and coil 46 joins with line tube 62, and around cylinder or sleeve 42, thereby its content is heated.
Transfer assembly 48 comprises a telescopic portable multi-level piston device 52, is used to promote cylinder or sleeve 42, thereby is meshed with charging opening 20 peripheries of molding or mold 12, fills melt raw material from cylinder or sleeve 42 in molding or mold 12 then.Multi-level piston device 52 comprises a center piston; it has three telescopic piston rods 54,55 and 56; wherein center-pole 56 has piston head 58; it is furnished with a conical seal (contact) face 59; be used for when the whole molten raw material in cylinder or the sleeve 42 by when cylinder or sleeve 42 send molding or mold 12 to, the periphery of opening 20 is sealed in molding or mold 12.Multi-level piston device 52 comprises the controller (not shown) of change power and speed; when being used for the periphery when the charging opening 20 of piston head 58 sealing moldings or mold 12; control its movement rate, also be used for the upward force of control piston head 58 in cylinder or sleeve 42 and in molding or mold 12.
Like this; in use; cylinder or sleeve 42 are transmitted assembly 48 and support; thereby multi-level piston device 52 can be moved in cylinder or sleeve 42; thereby can fully seal; thereby the molten raw material in cylinder or the sleeve 42 is moved up, and under the effect of upwards moving of piston rod 54,55 and 56, leave cylinder or sleeve 42, thereby melt raw material is sent in molding or the mold 12.
Transmission parts 48 also comprises the concentric tube 60,61,62,63 and 64 of a plurality of different-diameters.Tube 60,61,62,63 and 64 retractility mutually vertically moves.
Tube 60 is a kind of bottom tubes; has wheel 66; be used on as the track 67 of the part of casting device shown in Fig. 4-6, moving; thereby melting appartus 40 is moved back and forth between charging position and charge position; on charging position; in cylinder or sleeve 42, add molten raw material; and on charge position; melting appartus 40 and the molding of casting assembly 10 or the charging door 20 of mold 12 are aligned; thereby the molten raw material in cylinder or the sleeve 42 is sent in above-mentioned molding or the mold 12 to the molten raw material of packing into thus.Tube 64 is a kind of top tubes, is furnished with a upwards support ring that circumferentially extends, and this ring has a groove (not shown), is used for the lower end of sealed cylindrical or sleeve 42.Tube 62 has the circumferential extension support ring that makes progress, and it is at cylinder or sleeve 42 upper support induction coils 46.
Except the sealing function that groove provided of tube 64, at raw material between melting stage, the argon gas that provides via source of the gas 50 can cool off the lower end of cylinder or sleeve 42, thereby between piston apparatus 52 and top tube 64 and the lower end of cylinder or sleeve 42, the molten raw material of part is solidified, produce thus by the formed secondary seal of the raw material that has solidified.
Referring to Fig. 3, symbol 70 expression the present invention are used for the casting device of cast metal goods.Prosign is represented the part identical with Figure 1 and Figure 2.
Casting device 70 comprises an above-mentioned casting assembly 10, also has an above-mentioned melting appartus 40.Casting device 70 also has a molding or mold hydraulic controller 72 and melting appartus 40 hydraulic controllers 74.
Casting device 70 also has a CPU (CPU) 76, is used to monitor the heating of induction coil 14, thereby reaches the temperature desired curve, also is used for providing FEEDBACK CONTROL to each power supply 92 and 94 (Fig. 4).
Casting device 70 also is furnished with track (see Fig. 2 67), and the metal of melting appartus 40 passes on the wheel 66 of assembly 48 and moves thereon.Melting appartus 40 is between charging position (Fig. 3) and charge position (Fig. 5 and 6); molding 12 moves back and forth relatively; on charging position, add molten raw material to melting appartus 40; and on charge position, then will melt molding or the mold 12 that raw material sends casting assembly 10 to from melting appartus 40.
Referring to Fig. 4, the improvement of symbol 90 expression casting devices 70.Casting device 90 comprises two casting devices 70, respectively is furnished with a casting assembly 10, and this assembly has molding or the mold 12 that is used for cast product, also has a melting appartus 40 that is used for the light metal eddy-current heating.Casting device 90 also has a fusing induction heating power 92, such as being 100kW, be used for powering respectively to two melting appartus 40, also has an induction heating power 94, such as being 100kW also, be used for powering respectively to casting device 10, also have a cooling tower (not shown) that is used to provide cooling fluid, also have a source of the gas control module 96, be used for providing purge gas to casting assembly 10 and melting appartus 40.
In casting device 90, preferably cast two goods that phase place is different simultaneously, melting appartus 40 is shared a general induction heating power 92, and casting device 10 is shared a general induction heating power 94.In circulating, each different casting of phase place carries out the goods casting.Casting device 90 preferably moves in the quasi-continuous mode, thereby casting device 70 can be used by different way, wherein a kind of mode is, melting appartus 40 is in charge position, thereby is used for casting, and another kind of mode then is, melting appartus 40 is in charging position, and the light metal raw material of packing into, thereby after the casting process in another casting device 70 finished, the charge position of preparing relatively it moved back and forth.
Referring to Fig. 5 and 6, utilize above-mentioned casting device 70 to cast the light metal goods, promptly the magnesium alloy wheel rim 100, adopt AZ91 specification magnalium kirsite ingot bar 102.Ingot bar 102 is on the piston apparatus 52, and 40 of melting appartus are in charging position.Cylinder or sleeve 42 are on the ingot bar 102, thereby the lower end of cylinder or sleeve 42 is sealed in the above-mentioned groove of the top of metal transfer body 48 tube 64.Induction coil 46 is connected with the tube 62 of metal transfer body 48, thereby makes cylinder or sleeve 42 and ingot bar 102 location, and is centered on by coil 46.
Melting appartus 40 can move back and forth on the track 67 of casting device 70 by means of wheel 66; promptly move to charge position from charging position; at charging position; the AZ91 specification of packing in cylinder or sleeve 42 has fused ingot piece 102; and in charge position, melting appartus 40 aligns with charging door 20 by the end core or the face core 18 of molding or mold 12.By hydraulic pressure lift tube 64, cylinder or sleeve 42 seal mutually with the lower surface of end core or face core 18, thereby cylinder or sleeve 42 are sealed on tube 64.Adopt SF
6/ CO
2Purge gas comes purge cylinder or sleeve 42.Ingot bar 102 melts under the atmospheric conditions that purge gas provided that are incorporated into by source of the gas 50 in cylinder or the sleeve 42, until forming the molten raw material of AZ91 alloy.Adopt argon gas that a kind of cooler environment is provided, be used at the molten raw material of the lower end of cylinder or sleeve 42 cooling, thereby formation is partly solidified or the secondary seal (not shown) of full solidified light metal.
In molding or mold 12, desirable operating temperature and temperature curve have been reached; and molding or mold 12 are when having set up wiper seal by hydraulic controller 72 and by piston 24; the source of the gas of cylinder or sleeve 42 just interrupts; thereby utilize piston 52; make molten raw material under pressure, send molding or mold 12 to, fill molten raw material to molding or mold 12 therefrom from cylinder or sleeve 42.In molding or mold 12, carry out molten raw material fill before and fill during, by source of the gas control module 96, utilize above-mentioned SF
6/ CO
2Purge/mist comes purge molding or mold 12, and in sleeve 42 and when entering molding or mold 12, this gas also can protect melted surface isolated with molten raw material.The periphery of piston head 58 sealing charging openings 20, and partly enter in the charging opening 20, thereby the pressure of molten raw material in increase molding or the mold 12.Molding or mold 12 can cool off, thereby melting appartus 40 and molding or mold 12 are separated.Next, melting appartus 40 returns its charging position.
Open molding or mold 12 with hydraulic way, thereby each pellet 22 is thrown off under the effect of piston 24 mutually,, the plunger tip 16 that joins with the wheel rim 100 that has solidified is promoted by controller 72.Next, under the downward effect of releasing device (not shown), wheel rim 100 and plunger tip 16 are thrown off, thereby during plunger tip 16 promotes, promote wheel rim 100 downwards.
Piston apparatus 52 descends, barrier part 20 withdrawals then, thereby discharge cylinder or sleeve 42 and molten raw material solidify part (not shown), their form the secondary seal of cylinder or sleeve 42.Cylinder or sleeve 42 with mistake are cleaned, and put back to again in the transmission parts 48, thereby prepare the new wheel rim 100 of casting.Yet, also can adopt another cylinder or sleeve 42, thereby avoid waste the production time, also can reduce the possibility of cross pollution.
Strong point of the present invention is that it is a kind of permanent structure that casting device 70 need not, and can move on another from a production facility.Casting device 70 can offer the terminal use of goods casting at an easy rate, thereby can reduce cost of transportation etc.
Another strong point of the present invention is; the eddy-current heating of molding or mold 12 comprises six induction coils 25,26,27,28,29 and 30; but mutual self contained function; thereby before casting; reach the temperature desired curve in molding or the mold 12; thereby can produce desirable effect to the solidification rate of goods each several part,, can reduce the stress of consolidated article (wheel rim 100) thus such as wheel rim 100.Also can realize finishing the filled desirable mobile distance of molding or mold 12.
Another strong point of the present invention is that casting device 70 need not big installing space.Such as, 70 of above-mentioned casting devices need 20-30m
2Floor area.This technology also has the strong point that reduces cost, because only need to provide power supply to casting device 70 before casting, casting just can be cut off the power supply after finishing, and can not influence its other effect.If have a power failure in the casting process of casting device 70 of the present invention, the continuously a large amount of metals that solidified when having a power failure with the needs fusing are compared, and its loss is not more than the loss of molten raw material in cylinder or the sleeve 42, comprises ingot bar 102.Therefore, after energising,, just can avoid loss fully by the raw material in fusing cylinder or the sleeve 42.
Another strong point of the present invention is that the molding of casting device 10 or mold 12 need not test run, just can reach optimum operating condition.Electric power by each coil 25,26,27,28,29 of Selective Control and 30 just can easily obtain desirable casting temperature curve.This technology need not test run, this means that ingot bar 102 can produce the wheel rim 100 of equivalent amount except having a power failure, and can reduce the waste product waste, and can improve the quality.
Claims (25)
1. casting of metal artefacts technology, its method is, the molten metal of in molding or mold, packing into, and this metal is solidified in molding or mold, thus forming goods, this technology is characterised in that: comprise the following steps:
Before the molten metal of in molding or mold, packing into, by eddy-current heating molding or mold are heated to high temperature, after molding or mold reach a high temperature, just begin to pack into.
2. technology as claimed in claim 1 is characterized in that: comprise the following steps: with purge gas purge to be carried out in molding or mold, thereby feed under by the atmospheric conditions that purge gas provided before molding or mold charging.
3. technology as claimed in claim 2 is characterized in that: before the heating of molding or mold and all carry out purge in the process, and interrupted purge before charging.
4. as the described technology of above-mentioned each claim, it is characterized in that: under pressure, feed, and be filled to till the full capacity of molding or mold.
5. technology as claimed in claim 4 is characterized in that: under this intermittent pressure of 50KPa-30MPa, feed by injecting molding.
6. as the described technology of above-mentioned each claim, it is characterized in that: applicable following metal: aluminium, magnesium, lithium, zinc and alloy thereof.
7. technology as claimed in claim 6 is characterized in that: applicable following light metal: magnesium, aluminium and alloy thereof.
8. technology as claimed in claim 7 is characterized in that: these casting product are a kind of motor vehicle wheel rim light metal casting product.
9. as the described technology of above-mentioned each claim, it is characterized in that: mo(u)lding is a kind of metallic article, is spaced apart 0.75-15mm between the most approaching part of solid articles each several part and product surface, and product weight is 0.25-30kg.
10. as the described technology of above-mentioned each claim; it is characterized in that: adopt eddy-current heating; thereby the inner surface to molding or mold provides the temperature desired curve; make the inner surface of molding or mold form different temperature sections or zone mutually thus; come the molten metal interior to contact thus, thereby make the different piece of injecting the molten metal in molding or the mold have desirable cooling and solidification rate with injecting molding or mold.
11. as the described technology of above-mentioned each claim; it is characterized in that: can come molding or mold are feeded from melting appartus; the capacity of this melting appartus should be able to produce whole variations of molten metal; and can be complementary with the capacity of molding or mold; can be to molding or mold enough molten metals of packing into; and then produce single goods, thereby consume the whole molten raw material that melting appartus provided.
12. as the described technology of above-mentioned each claim; it is characterized in that: the melting appartus that moves back and forth from relative molding or mold comes molding or mold are feeded; in this technology; melting appartus moves back and forth between charging position and charge position; on charging position, add molten raw material; and on charge position, then will melt raw material from melting appartus and send casting device to.
13. as the described technology of above-mentioned each claim; it is characterized in that: in a plurality of moldings or mold, cast; melting appartus of each adapted to its charging; each melting appartus is associated with a molding or mold, can come electrical heating by induction heating apparatus, adopts a multiple power source; provide electric power to molding or mold; thereby carry out eddy-current heating, and adopt a multiple power source, provide electric power to melting appartus.
14. a casting assembly (10) that is used for cast metal goods (100), this assembly comprise molding or the mold (12) that is used for cast product, it is characterized in that:
It has an induction heating apparatus (14), and this induction heating apparatus comprises that at least one centers on the induction coil of molding or mold (25,26,27,28,29,30), is used for before the goods casting molding or mold being heated to high temperature.
15. assembly as claimed in claim 14 is characterized in that: induction heating apparatus is a kind of variable frequency induction heater (16).
16. as claim 14 or 15 described assemblys, it is characterized in that: this assembly comprises a purge gas supply pipe (31) that joins with molding or mold, is used for providing purge gas to the inside of molding or mold.
17. as each described assembly among the claim 14-16, it is characterized in that: molding or mold are reusable multicore metallic mold or mold.
18. assembly as claimed in claim 17 is characterized in that: reusable molding or mold are the hydraulic operation formula, and its bottom or surperficial core are provided with the metal opening of packing into, are used for from the bottom to molding or the mold molten metal of packing into.
19. as each described assembly among the claim 14-18; it is characterized in that: induction heating apparatus comprises a plurality of at least two induction coils; it is self contained function or separate action separately; thereby molding or mold are heated to above-mentioned high temperature, and the inner surface to molding or mold provides the temperature desired curve simultaneously.
20. the casting device of cast metal goods, it is characterized in that: this device comprises a described casting assembly of claim 14 (10), also comprise a melting appartus (40), be used to form deposite metal, thereby in the casting assembly, carry out the metallic article casting, this melting appartus comprises a heater (44), is used for the molten metal raw material is heated, thereby reaches the formation temperature of molten metal raw material.
21. device as claimed in claim 20; it is characterized in that: the capacity of melting appartus should be able to produce whole variations of molten metal; and can be complementary with the capacity of molding or mold, thereby the casting of single product can consume the whole molten raw material that melting appartus is provided fully in molding or the mold when full capacity is used.
22. as claim 20 or 21 described devices, it is characterized in that: the heating facility of melting appartus is a kind of induction heating apparatus, it comprises at least one induction coil (46).
23. as each described device among the claim 20-22, it is characterized in that: melting appartus can be between charging position and charge position, the casting assembly moves back and forth relatively, on the charging position of melting appartus, add molten raw material, and on charge position, then will melt raw material from melting appartus and send the casting assembly to.
24. device as claimed in claim 23 is characterized in that: this device is equipped with track (67), and melting appartus is installed in orbit via wheel (66), casts relatively at melting appartus during the reciprocating motion of assembly, and wheel can roll along track.
25. as each described device among the claim 20-24, it is characterized in that: this device comprises a plurality of casting assemblys and identical a plurality of melting appartus, each casts assembly and an above-mentioned melting appartus matches, each melting appartus and an above-mentioned casting assembly match, each is cast assembly and shares a heating multiple power source (94), and each melting appartus is shared a heating multiple power source (92).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA200309208 | 2003-11-26 | ||
| ZA2003/9208 | 2003-11-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1882404A true CN1882404A (en) | 2006-12-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800345389A Pending CN1882404A (en) | 2003-11-26 | 2004-11-24 | Casting of metal artefacts |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US20070102131A1 (en) |
| EP (1) | EP1704008B1 (en) |
| JP (1) | JP2007512144A (en) |
| KR (1) | KR20060109961A (en) |
| CN (1) | CN1882404A (en) |
| AT (1) | ATE365088T1 (en) |
| AU (1) | AU2004292502A1 (en) |
| BR (1) | BRPI0416225A (en) |
| CA (1) | CA2546742A1 (en) |
| DE (1) | DE602004007162T2 (en) |
| EA (1) | EA009004B1 (en) |
| ES (1) | ES2293361T3 (en) |
| IL (1) | IL175653A0 (en) |
| PL (1) | PL1704008T3 (en) |
| WO (1) | WO2005051571A1 (en) |
| ZA (1) | ZA200605259B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861878A (en) * | 2012-10-12 | 2013-01-09 | 胡兵 | Induction heating method and induction heating device universally used in iron section cladding sand cast production line |
| CN104493145A (en) * | 2014-12-09 | 2015-04-08 | 潍坊一立精密铸造有限公司 | Novel induction furnace and casting mold for novel induction furnace |
| CN107635697A (en) * | 2015-06-11 | 2018-01-26 | A·V·埃里瑟耶夫 | Produce the method for semi-finished metallurgic product and shaped casting and implement the device of this method |
| CN109047740A (en) * | 2018-08-09 | 2018-12-21 | 金桂光 | A kind of intermetallic composite coating multidigit die casting device |
| CN111570774A (en) * | 2020-05-27 | 2020-08-25 | 杭州小鲤工业设计有限公司 | System convenient for radiating LED electricity-saving lamp processing |
| CN112247127A (en) * | 2020-10-22 | 2021-01-22 | 河北机电职业技术学院 | Steel safe casting forming device and forming method thereof |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9317599B2 (en) * | 2008-09-19 | 2016-04-19 | Nokia Technologies Oy | Method, apparatus and computer program product for providing relevance indication |
| FR2991902A1 (en) * | 2012-06-18 | 2013-12-20 | Roctool | METHOD AND DEVICE FOR PREHEATING A MOLD IN PARTICULAR INJECTION MOLDING |
| US9612011B2 (en) | 2012-08-30 | 2017-04-04 | Honda Motor Co., Ltd. | Preheat burner assembly and method |
| DE102013214534B4 (en) | 2013-07-25 | 2021-07-01 | Bayerische Motoren Werke Aktiengesellschaft | Casting device and casting process |
| CN104107881A (en) * | 2014-07-24 | 2014-10-22 | 苏州淮通电气有限公司 | Motor shell casting mold |
| US10086429B2 (en) * | 2014-10-24 | 2018-10-02 | GM Global Technology Operations LLC | Chilled-zone microstructures for cast parts made with lightweight metal alloys |
| WO2017019855A1 (en) * | 2015-07-30 | 2017-02-02 | Magna International Inc. | Stamping die |
| DE102016123496A1 (en) | 2016-12-05 | 2018-06-07 | Schuler Pressen Gmbh | Tool for casting and / or forming a molded part, casting device, press and method for compensating a thermal load of a molded part |
| CN114537308B (en) * | 2022-01-25 | 2023-01-10 | 靖江市钜顺精密轻合金成型科技有限公司 | High-precision die-casting aluminum casting for automobile manufacturing and die-casting die thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3640370A1 (en) * | 1985-11-26 | 1987-05-27 | Ube Industries | INJECTION METHOD OF AN INJECTION MOLDING MACHINE |
| AT387167B (en) * | 1986-08-11 | 1988-12-12 | Vaillant Gmbh | METHOD FOR PREHEATING A DIE CASTING MOLD |
| DE4120357A1 (en) * | 1991-06-20 | 1992-12-24 | Teves Gmbh Alfred | Preheating foundry moulds - in which internal mould surfaces are preheated by induction heating coil |
| JP3393079B2 (en) * | 1999-02-01 | 2003-04-07 | 株式会社日本製鋼所 | Light metal injection molding method |
| US6250365B1 (en) * | 1999-02-18 | 2001-06-26 | Teksid S.P.A. | Die casting process |
| JP2001113354A (en) * | 1999-10-15 | 2001-04-24 | Daihatsu Motor Co Ltd | Method for preheating metallic mold |
-
2004
- 2004-11-24 EA EA200601051A patent/EA009004B1/en not_active IP Right Cessation
- 2004-11-24 EP EP04798951A patent/EP1704008B1/en active Active
- 2004-11-24 KR KR1020067012827A patent/KR20060109961A/en not_active Application Discontinuation
- 2004-11-24 JP JP2006540659A patent/JP2007512144A/en not_active Withdrawn
- 2004-11-24 CA CA002546742A patent/CA2546742A1/en not_active Abandoned
- 2004-11-24 CN CNA2004800345389A patent/CN1882404A/en active Pending
- 2004-11-24 BR BRPI0416225-0A patent/BRPI0416225A/en not_active IP Right Cessation
- 2004-11-24 ES ES04798951T patent/ES2293361T3/en active Active
- 2004-11-24 PL PL04798951T patent/PL1704008T3/en unknown
- 2004-11-24 US US10/596,017 patent/US20070102131A1/en not_active Abandoned
- 2004-11-24 AT AT04798951T patent/ATE365088T1/en not_active IP Right Cessation
- 2004-11-24 AU AU2004292502A patent/AU2004292502A1/en not_active Abandoned
- 2004-11-24 WO PCT/IB2004/003838 patent/WO2005051571A1/en active IP Right Grant
- 2004-11-24 DE DE602004007162T patent/DE602004007162T2/en not_active Expired - Fee Related
-
2006
- 2006-05-16 IL IL175653A patent/IL175653A0/en unknown
- 2006-06-26 ZA ZA200605259A patent/ZA200605259B/en unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861878A (en) * | 2012-10-12 | 2013-01-09 | 胡兵 | Induction heating method and induction heating device universally used in iron section cladding sand cast production line |
| CN104493145A (en) * | 2014-12-09 | 2015-04-08 | 潍坊一立精密铸造有限公司 | Novel induction furnace and casting mold for novel induction furnace |
| CN107635697A (en) * | 2015-06-11 | 2018-01-26 | A·V·埃里瑟耶夫 | Produce the method for semi-finished metallurgic product and shaped casting and implement the device of this method |
| CN109047740A (en) * | 2018-08-09 | 2018-12-21 | 金桂光 | A kind of intermetallic composite coating multidigit die casting device |
| CN111570774A (en) * | 2020-05-27 | 2020-08-25 | 杭州小鲤工业设计有限公司 | System convenient for radiating LED electricity-saving lamp processing |
| CN112247127A (en) * | 2020-10-22 | 2021-01-22 | 河北机电职业技术学院 | Steel safe casting forming device and forming method thereof |
| CN112247127B (en) * | 2020-10-22 | 2021-11-12 | 河北机电职业技术学院 | Steel safe casting forming device and forming method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| EA009004B1 (en) | 2007-10-26 |
| PL1704008T3 (en) | 2008-01-31 |
| AU2004292502A1 (en) | 2005-06-09 |
| US20070102131A1 (en) | 2007-05-10 |
| IL175653A0 (en) | 2006-09-05 |
| CA2546742A1 (en) | 2005-06-09 |
| EA200601051A1 (en) | 2006-12-29 |
| JP2007512144A (en) | 2007-05-17 |
| KR20060109961A (en) | 2006-10-23 |
| DE602004007162D1 (en) | 2007-08-02 |
| ES2293361T3 (en) | 2008-03-16 |
| DE602004007162T2 (en) | 2008-02-28 |
| ATE365088T1 (en) | 2007-07-15 |
| EP1704008B1 (en) | 2007-06-20 |
| WO2005051571A1 (en) | 2005-06-09 |
| EP1704008A1 (en) | 2006-09-27 |
| BRPI0416225A (en) | 2007-01-02 |
| ZA200605259B (en) | 2007-10-31 |
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Open date: 20061220 |