CN1168827A - Method and apparatus for supplying molten metal - Google Patents
Method and apparatus for supplying molten metal Download PDFInfo
- Publication number
- CN1168827A CN1168827A CN97104984A CN97104984A CN1168827A CN 1168827 A CN1168827 A CN 1168827A CN 97104984 A CN97104984 A CN 97104984A CN 97104984 A CN97104984 A CN 97104984A CN 1168827 A CN1168827 A CN 1168827A
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- Prior art keywords
- motlten metal
- ladle
- container part
- supply
- casting machine
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 241
- 239000002184 metal Substances 0.000 title claims abstract description 241
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 71
- 238000005266 casting Methods 0.000 claims abstract description 52
- 238000002347 injection Methods 0.000 claims description 35
- 239000007924 injection Substances 0.000 claims description 35
- 238000007599 discharging Methods 0.000 claims description 24
- 238000002844 melting Methods 0.000 claims description 10
- 230000008018 melting Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 4
- 239000002893 slag Substances 0.000 abstract description 22
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract 3
- 230000002950 deficient Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 9
- 230000005674 electromagnetic induction Effects 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000004512 die casting Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
Classifications
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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
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
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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
- B22D17/30—Accessories for supplying molten metal, e.g. in rations
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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
- B22D39/00—Equipment for supplying molten metal in rations
- B22D39/02—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
- B22D39/02—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume
- B22D39/026—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by volume using a ladler
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
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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
- B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Measuring Volume Flow (AREA)
Abstract
A method and an apparatus for supplying molten metal to a casting machine wherein the amount of molten metal supplied can be controlled precisely and defective castings caused by slag in the molten metal can be prevented. Material supply means supplies a ladle with a suitable amount of a casting material for one shot of casting in a solid state. After the solid casting material is melted into molten metal, the molten metal is supplied from the ladle to the casting machine. By controlling the amount of molten metal supplied by means of the casting material in the solid state, the precision of quantity control of molten metal can be enhanced. In addition, because the molten metal is supplied from the ladle to the casting machine soon after the casting material is melted, the time for molten metal to be exposed to the air can be shortened, and slag generation due to molten metal oxidization can be suppressed.
Description
The present invention relates to use the method and apparatus of ladle to the casting machine molten metal feed.
In casting, the operation of molten metal feed is undertaken by following manner, promptly, dip the motlten metal that temporarily is stored in the motlten metal storing furnace with a ladle, the ladle that fills motlten metal is delivered to casting machine, and the inclination ladle, motlten metal is poured into mould.
The motlten metal amount of delivering to mould must be suitable for the cavity dimension of mould.When the supply of motlten metal too hour, in the situation of gravity casting, rising head can not play a role well, and in the situation of die casting, residual cake is then too thin, insufficient pressure can not obtain good foundry goods to be delivered to product section.On the other hand, when the motlten metal supply was too big, in the situation of gravity casting, motlten metal was from die cavity overflow and aggravating working environment, and in the situation of die casting, residual cake is then too thick, and the chuck of the residual cake of clamping can not suitably be clamped residual cake, and foundry goods is difficult to take out.In addition, the thickness of residual cake finally can influence the high speed phase and the low speed phase of as-cast condition, thereby causes some quality problems.As you know, in the die casting field, residual cake is meant the part that forms between plunger end and the sheet stamen (spool core).Before motlten metal solidified, pressure acted on product section by the motlten metal in the residual cake part.After casting is finished, clamp residual cake so that foundry goods is taken out from mould with chuck.
In the prior art, the motlten metal supply is by regulating the ladle inclination angle or using ladle to utilize load detection device such as dynamometer to control when the motlten metal storing furnace dips motlten metal.More particularly, make predetermined angle of ladle inclination immerse the motlten metal storing furnace, keep the ladle inclination angle, ladle is risen to motlten metal storing furnace top.The another kind of practice is, with the motlten metal amount in load detection device such as the dynamometer detection ladle, then, if necessary, regulate the inclination angle of ladle meticulously, make too much motlten metal overflow (patent application that sees also Japanese unexamined discloses the clear 63-309367 of text number).
Yet, in above-mentioned common method,, thereby be difficult to accurately control the motlten metal supply because the motlten metal supply is by regulating the ladle inclination angle or use dynamometer to detect the motlten metal amount in the ladle and controlled.That is to say, controlling in the situation of motlten metal supply by regulating the ladle inclination angle that the ladle tilting gearing that is used to change the ladle inclination angle will change in chronological order, the motlten metal supply can not accurately be made repercussion rapidly according to above-mentioned variation.On the other hand, detecting with dynamometer in the situation of the motlten metal amount in the ladle, because ladle is fixed on the lower end of elongated delivery of molten metal arm usually, thereby the delivery of molten metal arm is often fine crooked according to the ladle inclination angle, and the feasible motlten metal amount that is difficult to accurately measure in the ladle of this bending of delivery of molten metal arm.
In addition, in above-mentioned common method, because motlten metal temporarily is stored in the motlten metal storing furnace, thereby motlten metal is exposed to air for a long time, promoted the oxidation of motlten metal, thereby can generate slag.The generation of slag has reduced the precision of motlten metal supply, and can cause product defects when slag is delivered to casting machine with motlten metal.
The present invention In view of the foregoing makes.
First purpose of the present invention provides a kind of method and apparatus of molten metal feed, and wherein, the motlten metal supply can be precisely controlled.
Second purpose of the present invention provides a kind of method and apparatus of molten metal feed, and wherein, the product defects that the slag in the motlten metal causes can be avoided.
Method according to the molten metal feed of first aspect present invention, can realize first and second goals of the invention, it comprises with solid-state an amount of founding materials to an injection of ladle supply, solid-state founding materials is fused into motlten metal, and motlten metal is fed to casting machine from ladle.
In method according to first aspect present invention, because an amount of founding materials of an injection is with the solid-state ladle of delivering to, thereby can accurately control the motlten metal supply, thereby can improve the control accuracy of motlten metal supply by solid-state founding materials.In common method, because motlten metal temporarily is stored in the motlten metal storing furnace, motlten metal is exposed to air for a long time, generates slag because of oxidation easily.Yet, in according to the method for first aspect present invention then the problems referred to above can not appear, this be since after founding materials fusing soon, motlten metal just can be delivered to casting machine from ladle, can shorten the time that motlten metal is exposed to air, be oxidized to slag thereby can suppress motlten metal.In addition, when the solid-state founding materials of fusing, only need apply the required enough heats of an amount of founding materials of an injection of fusing, thereby an advantage is to be difficult to generation to damage situations such as ladle because of heat in addition.
Can realize of the present invention second purpose from ladle to the method for casting machine molten metal feed according to second aspect present invention, it is characterized in that, when vibration fills the ladle of motlten metal, detect the vibration frequency of ladle, and control the supply of motlten metal according to the vibration frequency that measures.
Fill the ladle of motlten metal according to the method involving vibrations of second aspect present invention, detect the vibration frequency of ladle this moment, and on the basis of the vibration frequency that measures control motlten metal supply.In other words, the motlten metal amount in the ladle can be measured by detecting vibration frequency change, and this is that the motlten metal amount in the ladle just can obtain high-precision control like this because vibration frequency is the quality influence that is subjected to the motlten metal that fills in the ladle.
In a preferred embodiment of the method aspect the present invention first and second, vibration ladle when motlten metal is delivered to casting machine.By at molten metal feed time vibration ladle, molten metal flow improves, and therefore, the time of molten metal feed can be shortened.In addition, when in ladle, filling an amount of motlten metal of an injection, all motlten metal can be fed to casting machine reliably, therefore, can supply an amount of motlten metal of an injection reliably, in addition, can also prevent that motlten metal from falling around the casting machine supply orifice, and can prevent that the metal that falls from depositing.
Method according to the molten metal feed of fourth aspect present invention can realize first and second purposes, this is to use a kind of ladle to dip the method that motlten metal is supplied casting machine from the motlten metal storing furnace, this ladle comprises a container part of also depositing motlten metal to its supply therein, one makes the top of described container part be in communication with the outside and can be opened, the air duct of closing, one is arranged on the container part bottom, be used for that motlten metal delivered to container part or with motlten metal from supply and discharging duct that container part is discharged, this method may further comprise the steps: when making air hole link atmosphere ladle is immersed in the motlten metal storing furnace, make motlten metal deliver to container part by supply and discharging duct from the motlten metal storing furnace, when reaching scheduled volume by the motlten metal of delivering to container part, for the motlten metal with scheduled volume remains in the container part and closed air duct, and when the closure of air duct, ladle is delivered to after the casting machine, open the air duct, make the top of container part be communicated with atmosphere, thereby make the motlten metal that holds in the container part be fed to casting machine by supply and discharging duct.
In method, when opening ladle immersed the motlten metal storing furnace, thereby make motlten metal deliver to container part by supply and discharging duct from the motlten metal storing furnace in the air duct according to fourth aspect present invention.When the motlten metal of delivering to puddle reaches scheduled volume,, thereby the motlten metal of scheduled volume is remained in the container part air duct closure.Then, ladle is delivered to when closed in the air duct after the precalculated position in the casting machine, the air duct is opened, the upper exposed that makes container part is in atmosphere, thereby makes the motlten metal in the container part be fed to casting machine by supply and discharging duct.Therefore, need not ladle and just can and be contained in the ladle, and the motlten metal of the scheduled volume in the ladle can be supplied to casting machine, thereby can control the supply of motlten metal accurately the motlten metal supply of scheduled volume.In addition, though there is slag around the molten metal surface in the motlten metal storing furnace,, the no slag motlten metal that is present in motlten metal storing furnace deep can be fed to container part by supply and discharging duct.In addition, when with ladle when the motlten metal storing furnace is delivered to casting machine, just by supply and discharging duct ingress of air, the area that contacts with air is little, thereby produces slag hardly for the motlten metal in the container part.
Can realize first and second purposes according to the equipment of fifth aspect present invention, it is to implement according to the employed equipment of the method for first aspect present invention.This equipment that is used for motlten metal is fed to from ladle casting machine, it is characterized in that comprising a kind of feeding device, this feeding device is used for also comprising the melting appartus that is used for solid-state founding materials is fused into motlten metal to an amount of founding materials of ladle with an injection of solid-state supply.
Equipment according to sixth aspect present invention can be realized first purpose, and it is to implement according to the employed equipment of the method for second aspect present invention.This equipment that is used for motlten metal is fed to from ladle casting machine, it is characterized in that comprising the vibrating device that is used to vibrate ladle, be used to detect the vibration frequency checkout gear of the vibration frequency of the ladle that is vibrated by vibrating device, and the control device that is used for the supply of control motlten metal on by the basis of the detected vibration frequency of vibration frequency checkout gear.
Can realize first and second purposes according to the equipment of seventh aspect present invention, it is to implement according to the employed equipment of the method for fourth aspect present invention.In the equipment of the motlten metal supply casting machine that from the motlten metal storing furnace, dips with ladle, the feature of described ladle be comprise one to its supply and hold the container part of motlten metal therein, top that makes container part is in communication with the outside and can be by the air duct of open and close, a bottom that is arranged on container part, be used for to the container part molten metal feed or from the supply of container partial discharge motlten metal and discharging duct, and the motlten metal amount detecting device that is used for detecting the scheduled volume motlten metal of having sent into container part.
Advantage of the present invention is described now.
In method or equipment according to fifth aspect present invention according to first aspect present invention, because to an amount of founding materials of ladle with an injection of solid-state supply, thereby can accurately control the motlten metal supply, thereby can improve the control accuracy of motlten metal supply by solid-state founding materials.In addition since after founding materials fusing soon, motlten metal just can be delivered to casting machine by ladle, thus the time that motlten metal is exposed to air can be shortened, be oxidized to slag thereby can suppress motlten metal.Therefore, the present invention helps to improve the quality of foundry goods.
In method or equipment according to sixth aspect present invention according to second aspect present invention, be subjected to the vibration frequency of the quality influence of the motlten metal that holds in the ladle by detection, the motlten metal amount in the ladle can be accurately controlled, thereby the control accuracy of motlten metal supply can be improved.Therefore, the present invention helps to improve the quality of foundry goods.
In method or equipment according to seventh aspect present invention according to fourth aspect present invention, by carrying out shirtsleeve operation such as ascending, descending ladle and open and close air duct, can accurately supply the motlten metal of scheduled volume to casting machine, structure that can simplified apparatus can realize the accurate control of motlten metal supply simultaneously.In addition, the no slag motlten metal in the deep of motlten metal storing furnace can be delivered to container part by supply and discharging duct, simultaneously, by being limited in the area that contacts with air in the ladle course of conveying, can suppress the generation of slag.Therefore, the present invention helps to reduce production costs, improve the quality of foundry goods.
Consult the following drawings and read following detailed description, other purpose that can better understand the present invention and many advantages.
The side view of Fig. 1 is illustrated in the example 1, from feeding device to an amount of founding materials of ladle with an injection of solid-state supply;
The cross-sectional figure of Fig. 2 is illustrated in the example 1, and the solid-state founding materials of sending into ladle is fused into motlten metal;
The cross-sectional figure of Fig. 3 is illustrated in the example 1, and the motlten metal in the ladle pours in the casting machine;
The side view of Fig. 4 is illustrated in the example 2, from feeding device to an amount of founding materials of ladle with an injection of solid-state supply;
The side view of Fig. 5 is illustrated in the example 3, from feeding device to an amount of founding materials of ladle with an injection of solid-state supply;
The motlten metal amount that the side view of Fig. 6 is illustrated in the ladle is controlled;
The cross-sectional figure of Fig. 7 is illustrated in the example 5, and the motlten metal of scheduled volume is delivered to ladle;
The cross-sectional figure of Fig. 8 is illustrated in the example 5, and the motlten metal in the ladle pours into casting machine.
Summarized the present invention above, be described in detail below in conjunction with instantiation, this description is not a limitation of the invention for explanation just.First preferred embodiment
The method of first preferred embodiment and first aspect present invention is relevant with the equipment of fifth aspect present invention.
In method or equipment according to fifth aspect present invention according to first aspect present invention, be used for the preferred embodiment of an amount of founding materials of an injection of solid-state supply be, the bar that is made of founding materials that will have certain diameter is cut into the material piece of predetermined length, make each material piece have the suitable quality of an injection, perhaps count and supply that constitute by founding materials of predetermined number and material piece that have certain mass (ball, square rod etc.), make the material piece of predetermined number have the suitable quality of an injection.Also can prepare the multiple material piece that has constant-quality respectively, and the material piece of the predetermined number of supply combination mentioned kind.All right weighing one or more material piece such as ball, square rods etc. make the material piece of weighing have the suitable quality of an injection.In such embodiments, having the founding materials of the suitable quality of an injection can be easily, accurately with solid-state supply.
In method or the equipment according to fifth aspect present invention according to first aspect present invention, a preferred embodiment that solid-state founding materials is fused into motlten metal is to adopt electromagnetic induction device as melting appartus.In this preferred embodiment, by regulating felicity condition as the induction coil of electromagnetic induction heater, can easily apply needed, the enough heats of founding materials of the appropriate amount of an injection of fusing, can prevent that in the melt-casting material ladle or similar device are subjected to thermal change bad.In addition, can obtain the motlten metal of the steady temperature of needs.(example 1)
In example 1, the present invention is applied to aluminium alloy compression casting.
The equipment of example 1 comprises a ladle 1, is used for to the feeding device 2 of ladle 1 with the founding materials of the appropriate amount of an injection of solid-state supply, and as the electromagnetic induction heater 3 that is used for the solid-state founding materials of ladle 1 is fused into the melting appartus of motlten metal.
Now consult Fig. 1, ladle 1 is fixing rotationally by bolster 5 by the lower end of a motlten metal supply arm 4.Ladle 1 is fixed on the bolster 5, and bolster 5 is rotatably mounted by a unillustrated bearing by motlten metal supply arm 4.Driving shaft 6 is rotatably mounted by a unillustrated bearing by the upper end of motlten metal supply arm 4.Sprocket wheel 7 and sprocket wheel 8 are separately fixed on driving shaft 6 and the bolster 5, and chain 9 connects two sprocket wheels 7 and 8.Because said structure rotates and is delivered to bolster 5 by chain 9 from driving shaft 6.Driving shaft 6 is connected in motor (pulse motor) as the ladle drive unit by decelerator 11, so that change the inclination angle of ladle 1.Ladle 1 can be carried by unillustrated conveying device together with motlten metal supply arm 4 and motor 10.
Electromagnetic induction heater 3 as melting appartus is installed in the melting chamber 16, is used for a material piece 14, that is, solid-state founding materials is fused into motlten metal 15.Electromagnetic induction heater 3 can easily change heating-up temperature by the condition of regulating induction coil, and can be easily applies the required enough heats of a material of fusing piece 14 according to the quality of the material piece 14 in the ladle 1 and fusion temperature.
The method of the supply of equipment motlten metal that uses said structure is described below.
In method according to the molten metal feed of above-mentioned example, the motlten metal amount of being supplied will be by having constant diameter, the bar 13 that is made of founding materials is cut into the material piece 14 of predetermined length, makes each material piece 14 have the suitable quality of an injection and controlled.Therefore, the motlten metal amount that can supply can make things convenient for, controlled accurately.
In the commonsense method of molten metal feed, because motlten metal temporarily is stored in the motlten metal storing furnace, thereby motlten metal is exposed to air for a long time, produces slag because of oxidation easily.This slag can cause problems such as the motlten metal amount control inaccuracy of being supplied and product defects.Yet, in the method for the molten metal feed of this example but the problems referred to above can not appear, this be since after being melted in melting chamber 16 as a material piece 14 of solid-state founding materials soon, motlten metal 15 is just delivered to plunger bushing 17 from ladle 1.The time that motlten metal 15 is exposed to air can be shortened, and can prevent to produce slag owing to the oxidation of motlten metal 15.
In addition, in this example, owing to use electromagnetic induction heater 3 as melting appartus, thereby heating-up temperature can the change easily by the condition of regulating induction coil, and can easily apply the required enough heats of melting charge piece 14 according to the quality that is contained in the material piece 14 in the ladle 1, fusion temperature etc.Though in common method, exist ladle etc. to be melted the problem of the fire damage of metal storing furnace easily, in the method for this example, the problems referred to above can not occur, thereby can reduce the upkeep cost of ladle 1 etc.(example 2)
The equipment of this example has the structure identical with the equipment of example 1, but the feeding device of this example 2 is different from the feeding device of example 1.As shown in Figure 4, the feeding device of this example is used to prepare a large amount of spheries with constant-quality first material piece 18 and the sphere second material piece 19 that has less than the constant-quality of the first material piece, 18 quality, and the material piece 18 and 19 of counting predetermined number, thereby has the suitable quality of an injection.Use this feeding device 2 can make things convenient for equally, accurately with an amount of founding materials of an injection of solid-state supply.(example 3)
As shown in Figure 5, remove outside the structure of feeding device 2, the equipment of this example has the structure identical with the equipment of example 2.The feeding device 2 of this example is used to prepare a large amount of spheries with constant-quality first material piece 18 and the second material piece 19 that has less than the less constant-quality of the first material piece 18, use the weigher 20 weighings first and second material pieces, so that have the suitable gross mass of an injection, and the material piece 18 and 19 of weighing is delivered to ladle 1.Use this feeding device 2 can make things convenient for equally, accurately with an amount of founding materials of an injection of solid-state supply.Second preferred embodiment
Second preferred embodiment with according to the method for second aspect present invention and relevant according to the equipment of sixth aspect present invention.(example 4)
Now consult Fig. 6, the equipment of this example comprises that a conduct is used to vibrate the vibrating sensor 22 of vibration frequency checkout gear that the vibrator 21 of the vibrating device of ladle 1, conduct are used to detect the vibration frequency of ladle 1, and the control device 23 that is used for controlling the motlten metal amount of being supplied on the basis of the vibration frequency that vibrating sensor 22 measures.Control device 23 is also controlled the motor 10 as the ladle drive unit, so that change the inclination angle of ladle 1.
The vibrator 21 of effect vibrating device is used to form the predetermined vibration of ladle 1.When Vibration on Start-up device 21, ladle 1 is vibrated, and the vibration frequency of this moment is detected by vibrating sensor 22, and the vibration frequency of measuring is sent to control device 23.In control device 23, the benchmark vibration frequency is input in advance.Benchmark vibration frequency f
0It is the frequency of the ladle 1 when vibrator 21 makes the ladle 1 of the suitable motlten metal that fills an injection form predetermined vibration.Control device 23 is with the vibration frequency f and the benchmark vibration frequency f that measure
0Compare, and control motor 10 thereby being become, the vibration frequency that measures equals benchmark vibration frequency f to change the inclination angle of ladle 1
0
At work, than an amount of motlten metal of an injection slightly the motlten metal of volume scoop out from unillustrated motlten metal storing furnace by ladle 1, Vibration on Start-up device 21 makes ladle 1 form predetermined vibration.At this moment, detect the vibration frequency f of ladles 1, and the vibration frequency that measures is delivered to control device 23 by vibrating sensor 22.Control device 23 is with vibration frequency f that measures and the benchmark vibration frequency f that imports in advance
0Relatively, and control motor 10 to be increasing the inclination angle of ladle 1 gradually and continuously, equals the benchmark vibration frequency f of input in advance so that make motlten metal fall to become until the vibration frequency that measures from ladle 1 bit by bit
0Therefore, the motlten metal amount in the ladle 1 can be precisely controlled, forms an amount of motlten metal of an injection.
Therefore, in this example, the motlten metal amount of supply can obtain conveniently, high-precision control.
In this example, if vibrated by vibrator 21 from ladle 1 ladle 1 to the casting machine molten metal feed, so, molten metal flow will be improved, and can shorten the time of molten metal feed.In addition, because an amount of motlten metal of an injection is contained in the ladle and whole motlten metal can be delivered to casting machine reliably, thereby can supply an amount of motlten metal of an injection reliably.In addition, can prevent that also motlten metal from falling at the circumference of the feed orifice of casting machine, and prevent that the motlten metal that falls from depositing.
If in example 1 to 3, also vibrator 21 is set,, so also can obtain and above-mentioned similar effect make ladle 1 vibration during to the casting machine molten metal feed from ladle 1 for ladle 1.The 3rd preferred embodiment
The 3rd preferred embodiment with according to the method for fourth aspect present invention and relevant according to the equipment of seventh aspect present invention.(example 5)
Now consult Fig. 7 and 8, in the equipment of this example, use ladle 24 to be sent to plunger bushing 17 from the motlten metal 15 that motlten metal storing furnace 25 dips.
Ladle 24 comprises one to its supply and the container part 26, that hold motlten metal 15 therein is in communication with the outside container part 26 and can be used for to container part 26 molten metal feeds 15 or from the supply and the discharging duct 28 of container part 26 discharging motlten metals 15 by the air duct 27 of open and close, one, and feeler 29, this sensor is used to detect the motlten metal of the scheduled volume of having delivered to container part 26 as the motlten metal amount detecting device.
The container part 26 of ladle 24 can be by the ascending, descending on vertical of unillustrated lowering or hoisting gear.And can be delivered to plunger bushing 17 from motlten metal storing furnace 25 by unillustrated conveying device.The capacity of container part 26 is designed to be the motlten metal amount that makes in the ladle 24 equals an injection when motlten metal is sent full container part 26 and conveying and discharging duct 28 an amount of motlten metal.
The air duct 27 of ladle 24 can be closed plate 30 open and closes, and feeler 29 is fixed on the front end of closure plate 30.Closure plate 30 can move back and forth by a unillustrated fluid cylinder in the horizontal direction, and this is that control by control section 31 realizes, exports above-mentioned control section to by feeler 29 detected signals.The lower end of feeler 29 is designed to such an extent that be on the horizontal plane identical with the inside top surface of container part 26.
The supply of ladle 24 and discharging duct 28 have a sloping portion 28a who extends along oblique below from the center of the lower end of container part 26, and an integrally formed vertical opening portion 28b on the front end of sloping portion 28a.Vertical opening portion 28b leaves the certain horizontal range of container part 26.
In this equipment, closure plate 30 moves forward in the horizontal direction owing to the control of control section 31, thereby air duct 27 is communicated with atmosphere.Then, handle unillustrated lowering or hoisting gear, fall ladle 24, make it immerse motlten metal storing furnace 15.Therefore, motlten metal enters container part 26 from motlten metal storing furnace 25 by supply and discharging duct 28.When motlten metal arrives the inside top surface of container part 26, the motlten metal in the feeler 29 contacting molten metal storing furnaces 25, and to signal of control section 31 outputs.The control section 31 control closure plates 30 of having received above-mentioned signal are gone up and are moved so that closed air duct 27 in horizontal backward directions (among Fig. 7 to the right direction).Therefore, an amount of motlten metal of an injection accurately can be contained in the ladle 24.When motlten metal being kept in the ladle 24, ladle 24 is delivered to plunger bushing 17 by unillustrated conveying device, makes the vertical opening portion 28b in supply and discharging duct 28 be placed on the supply orifice 17a place of plunger bushing 17.Then, by control part 31 controls, closure plate 30 moves forward on forward direction of level (among Fig. 7 left direction), makes air duct 30 be communicated with atmosphere, thereby the whole motlten metals 15 in the container part 26 can be delivered to supply orifice 17a from supply and discharging duct 28.
As mentioned above, only by falling, rise ladle 24 and moving in the horizontal direction closure plate 30, the motlten metal of scheduled volume just can be sent to and leave in the ladle 24, motlten metal in the ladle 24 can be sent to plunger bushing 17, and the motlten metal amount that is supplied can be controlled accurately.
In addition, when the motlten metal amount of control in the ladle 24 or when the motlten metal in the ladle 24 is delivered to plunger bushing 17, need not to make ladle 24 to tilt, therefore, do not need to tilt the mechanism of ladle 24, thus but the structure of simplified apparatus.
In addition, in motlten metal storing furnace 25, have slag around motlten metal 15 surfaces, still, the vertical opening portion 28b in supply and discharging duct 28 reaches near the bottom of motlten metal storing furnace 25.Thereby can deliver to container part 26 by this supply and discharging duct 28 at the motlten metal of the no slag in deep.In addition, when ladle 24 when motlten metal storing furnace 25 is delivered to plunger bushing, the motlten metal 15 in the container part 26 is the vertical opening portion 28b ingress of air by supply and discharging duct 28 just.Because little, thereby produce slag hardly with the contact area of air.Therefore, the motlten metal that contains few slag can be delivered to plunger bushing 17 from ladle 24, thereby has prevented the product defects that slag causes.
In addition, because 26 1 horizontal ranges of container part are left in supply and discharging duct 28, and need not ladle 24 when molten metal feed, thereby must worry that hardly ladle 24 can damage the part of casting machine as fixing platen 32 when molten metal feed.Therefore, the supply orifice 17a of plunger bushing 17 can place near fixing platen 32, and this just makes plunger bushing 17 can have bigger diameter and less length.
Obviously can make many modifications and variations and not exceed scope of the present invention above-mentioned technology contents of the present invention.
Claims (7)
1. the method for a molten metal feed may further comprise the steps:
To an amount of founding materials of ladle with an injection of solid-state supply;
Described solid-state founding materials is fused into motlten metal; And
Described motlten metal is supplied to casting machine from described ladle.
2. from the method for ladle to the casting machine molten metal feed, involving vibrations fills the ladle of described motlten metal; Detect the vibration frequency of described ladle simultaneously, and on the basis of the described vibration frequency that measures, control the motlten metal amount of being supplied.
3. the method for a molten metal feed according to claim 1 and 2 is characterized in that: be included in and vibrate described ladle when described casting machine is supplied described motlten metal.
4. the method for the motlten metal that from the motlten metal storing furnace, dips to the casting machine supply, the ladle that this method is used comprise one to its supply and deposit the container part of motlten metal therein, top that makes described container part is in communication with the outside and can be opened and closed air duct, and bottom that is located at described container part, be used for motlten metal being delivered to described container part or being used for supply and the discharging duct of motlten metal from described container part discharge be said method comprising the steps of:
When described air duct is communicated with atmosphere, described ladle is immersed described motlten metal storing furnace, thereby by described supply and discharging duct motlten metal is delivered to described container part from described motlten metal storing furnace, and when the motlten metal of delivering to described container part reaches scheduled volume, for the motlten metal with described scheduled volume remains in the described container part, then with described air duct closure;
When the closure of described air duct, after described ladle delivered to described casting machine, open described air duct, make the top of described container part be communicated with atmosphere, thereby the motlten metal that is held in the described container part is fed to described casting machine by described supply and discharging duct.
5. be used for motlten metal is fed to the equipment of casting machine from ladle, comprise:
Feeding device, it is used for to an amount of founding materials of described ladle with an injection of solid-state supply; And
Melting appartus, it is used for described solid-state founding materials is fused into motlten metal.
6. be used for motlten metal is fed to the equipment of casting machine from ladle, comprise:
Be used to vibrate the vibrating device of described ladle;
The vibration frequency checkout gear, it is used to detect the vibration frequency of the described ladle that is caused by described vibrating device; And
Control device, it is used for controlling the motlten metal amount of being supplied on the basis by the detected vibration frequency of described vibration frequency checkout gear.
7. the equipment that is used for motlten metal from the motlten metal storing furnace to the casting machine supply that dip with ladle from, described ladle comprises a container part of also depositing described motlten metal to its supply therein, top that makes described container is in communication with the outside and air duct that can open and close, a bottom that is arranged on described container part, be used for motlten metal being fed to described container part or discharging the supply of described motlten metal and discharge the duct from described container part, and the motlten metal amount detecting device that is used to detect the scheduled volume of the motlten metal that has been fed to described container part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP81559/96 | 1996-04-03 | ||
| JP8081559A JPH09271930A (en) | 1996-04-03 | 1996-04-03 | Method for supplying molten metal, and device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1168827A true CN1168827A (en) | 1997-12-31 |
Family
ID=13749656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97104984A Pending CN1168827A (en) | 1996-04-03 | 1997-04-03 | Method and apparatus for supplying molten metal |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0799661A3 (en) |
| JP (1) | JPH09271930A (en) |
| KR (1) | KR970069196A (en) |
| CN (1) | CN1168827A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102387879A (en) * | 2009-04-02 | 2012-03-21 | 新东工业株式会社 | Automatic pouring method |
| CN104668503A (en) * | 2013-11-30 | 2015-06-03 | 中国科学院金属研究所 | Amorphous alloy member cast forming device and process |
| CN105880543A (en) * | 2016-05-17 | 2016-08-24 | 洛阳秦汉精工股份有限公司 | Quantitative pouring method and device and forming device |
| CN115038532A (en) * | 2019-12-13 | 2022-09-09 | 费尔有限公司 | Method for casting a melt by means of a melt container in which a melt receiving space is formed |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10043717A1 (en) * | 2000-09-04 | 2002-03-14 | Buehler Druckguss Ag Uzwil | Process for compressive reforming of aluminum or magnesium alloys comprises conveying the liquid or liquid material from a preparation chamber into a casting chamber of a die casting machine |
| JPWO2007074761A1 (en) * | 2005-12-26 | 2009-06-04 | 株式会社豊栄商会 | Container, molten metal supply system and method |
| JP5703424B2 (en) | 2011-11-11 | 2015-04-22 | クルーシブル インテレクチュアル プロパティ エルエルシーＣｒｕｃｉｂｌｅ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｌｌｃ | Ingot charging mechanism for injection molding equipment |
| JP5919359B1 (en) * | 2014-11-18 | 2016-05-18 | 有限会社ティミス | Vibration injection mechanism of semi-solid slurry in cup in automatic casting machine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR953639A (en) * | 1946-12-21 | 1949-12-09 | Hpm Dev Corp | Improvements to die-casting machines |
| GB820572A (en) * | 1956-06-25 | 1959-09-23 | E M B Co Ltd | Diecasting machines |
| FR1311735A (en) * | 1962-01-24 | 1962-12-07 | Feeding device for injection molding machines for non-ferrous metals | |
| FR1458704A (en) * | 1965-10-06 | 1966-03-04 | Volkswagenwerk Ag | Die-casting plant, intended in particular for the automatic series production of castings by a continuous process |
| FR1478028A (en) * | 1966-04-28 | 1967-04-21 | Feeding device for cold room injection molding machines | |
| GB1378881A (en) * | 1972-01-18 | 1974-12-27 | Gkn Group Services Ltd | Apparatus for dispensing molten metal |
| CH549426A (en) * | 1972-03-02 | 1974-05-31 | Aeg Elotherm Gmbh | CASTING PROCESS WITH PORTIONED FEEDING OF CASTING FORMS |
| GB1476433A (en) * | 1974-02-27 | 1977-06-16 | Gkn Group Services Ltd | Die casting high melting point metals |
| JPS6056449A (en) * | 1983-09-08 | 1985-04-02 | Nippon Steel Corp | Method for maintaining constant flow rate for supplying liquid to vessel or the like |
-
1996
- 1996-04-03 JP JP8081559A patent/JPH09271930A/en active Pending
-
1997
- 1997-04-02 EP EP97105443A patent/EP0799661A3/en not_active Withdrawn
- 1997-04-02 KR KR1019970012089A patent/KR970069196A/en not_active Application Discontinuation
- 1997-04-03 CN CN97104984A patent/CN1168827A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102387879A (en) * | 2009-04-02 | 2012-03-21 | 新东工业株式会社 | Automatic pouring method |
| CN104668503A (en) * | 2013-11-30 | 2015-06-03 | 中国科学院金属研究所 | Amorphous alloy member cast forming device and process |
| CN105880543A (en) * | 2016-05-17 | 2016-08-24 | 洛阳秦汉精工股份有限公司 | Quantitative pouring method and device and forming device |
| CN115038532A (en) * | 2019-12-13 | 2022-09-09 | 费尔有限公司 | Method for casting a melt by means of a melt container in which a melt receiving space is formed |
| US11931796B2 (en) | 2019-12-13 | 2024-03-19 | Fill Gesellschaft M.B.H. | Method for casting a melt by means of a melt container in which a melt receiving space is formed |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09271930A (en) | 1997-10-21 |
| EP0799661A2 (en) | 1997-10-08 |
| EP0799661A3 (en) | 1999-07-07 |
| KR970069196A (en) | 1997-11-07 |
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