KR101590818B1 - Apparatus and Method for Producing Foam Aluminum - Google Patents

Apparatus and Method for Producing Foam Aluminum Download PDF

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Publication number
KR101590818B1
KR101590818B1 KR1020150124097A KR20150124097A KR101590818B1 KR 101590818 B1 KR101590818 B1 KR 101590818B1 KR 1020150124097 A KR1020150124097 A KR 1020150124097A KR 20150124097 A KR20150124097 A KR 20150124097A KR 101590818 B1 KR101590818 B1 KR 101590818B1
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South Korea
Prior art keywords
tilting
furnace
molten aluminum
metering
melting furnace
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KR1020150124097A
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Korean (ko)
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박종영
박철희
여강구
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(주)폼텍글로벌
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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
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/005—Casting metal foams
    • 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
    • B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/08—Alloys with open or closed pores
    • C22C2001/083—

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The present invention relates to an apparatus and a method to produce high-quality aluminum foam by a precise measurement which precisely measures melted aluminum with a tilting-type melting furnace and a tilting-type measuring furnace; and mixes with an additive to produce high-quality aluminum foam. The apparatus of the present invention comprises: a tilting-type melting furnace unit (1); a tilting-type measuring furnace (2); a stirring furnace (3); and, a conveying unit (4). A tilting melting furnace (11) placed on the tilting-type melting furnace unit (1) is tilted to place the melted aluminum in the tilting-type measuring furnace (2), and conveys it. The tilting-type measuring furnace (2) also measures the conveyed melted aluminum, is tilted, and places it in the stirring furnace (3). The stirring furnace (3) stirs the melted aluminum and a required additive, injects foam melt into a cast (41) through a bottom end, and produces aluminum foam.

Description

Technical Field [0001] The present invention relates to an apparatus and a method for manufacturing high-quality aluminum foams by precision metering,

The present invention relates to an apparatus and a method for producing an aluminum foam, and more particularly, to a method of manufacturing an aluminum foam by using a tiling-type melting furnace and a metering furnace, High-quality aluminum foam manufacturing apparatus and manufacturing method by precision metering ", which enables production of aluminum foams.

 Aluminum foams, also referred to as "aluminum foams" or "foamed aluminum", are very useful when they require pneumatic noise, shock absorption and the like. Korean Patent Laid-Open Publication No. 10-2006-0133126 discloses an example of a method for producing an aluminum foam. In general, aluminum is melted in a liquid state in a melting furnace, and a thickener, a foaming agent, etc. are added to molten aluminum The mixture is stirred and dispersed, and then poured into a mold to produce a solid aluminum foam.

One of the important factors that influence the quality of the finally produced aluminum foams in the production of aluminum foams by such a method is to add the thickener, foaming agent and other necessary additives to the molten aluminum in accordance with the designed ratio, And such additives are uniformly dispersed in molten aluminum. That is, it is very important to add a necessary additive such as a thickener and a foaming agent to a molten aluminum in a fixed amount and uniformly mix it in the production of high-quality aluminum foams.

Particularly, since the process of adding and mixing the necessary additives to such molten aluminum is performed in an agitating furnace, it is a very important prerequisite that the molten aluminum which is dissolved in the melting furnace and exists in a liquid phase is poured into the molten aluminum by stirring in the melting furnace.

In the prior art, a worker used a container such as a squeezer to pour molten aluminum in a melting furnace and transfer the molten aluminum from the melting furnace to the agitating furnace by pouring the molten aluminum into a stirring furnace. As described above, in the prior art, since the operation of supplying the molten aluminum from the melting furnace to the stirring is manually performed by the operator, it is difficult to precisely measure the molten aluminum, so that the molten aluminum and the necessary additives are not mixed in a proper amount, There is a problem that the quality of the finally produced aluminum foam does not reach the intended level and the loss generation amount and defect occurrence rate are high.

In addition, in the process of manually supplying hot molten aluminum to the agitator by the worker, the worker is exposed to a safety accident and is injured. In addition, it takes a lot of time to produce the aluminum foam, .

Korean Patent Publication No. 10-2006-0133126 (published on December 26, 2006).

The present invention has been developed in order to solve the problems of the prior art as described above and it is an object of the present invention to accurately measure molten aluminum dissolved in a liquid phase in a melting furnace without manual work by a worker, And a foaming agent so that it is possible to produce high quality aluminum foams and effectively prevent workers from being injured in the process of supplying molten aluminum by the manual operation of the worker, And it is an object of the present invention to provide a technique which can shorten the time required to improve the production efficiency.

In order to achieve the above object, according to the present invention, a tilting type melting furnace unit, a tilting type metering furnace, and a stirring furnace are sequentially disposed, and a transfer device for transferring a mold is disposed below the stirring furnace ; The tilting type melting furnace unit includes a tilting melting furnace which melts a solid aluminum ingot to make molten aluminum in a liquid state. The tilting melting furnace is tilted in the direction of a tilting metering disposed next to the tilting melting furnace, and the molten aluminum contained in the tilting- Pouring into the furnace; The tilting type metering device is constituted by a concave bowl-shaped member and is configured to be able to be tilted in the direction of stirring, so that the molten aluminum transferred from the tilting melting furnace is metered and charged into a stirring furnace disposed at a subsequent position ; The stirrer is equipped with a stirrer to stir molten aluminum which has been poured from the tilting metering furnace and stir the necessary additives, and then injecting the molten metal into the hollow mold transferred by the transfer device through the lower end, Thereby producing a foamed product.

According to another aspect of the present invention, there is provided a method of manufacturing an aluminum foam using the apparatus for manufacturing an aluminum foam, A tilting type metering furnace, and an agitating furnace are sequentially arranged in this order, and a transfer device for transferring a mold containing liquid aluminum foams is disposed below the stirring furnace, Wherein the aluminum ingot is melted in a tilting melting furnace provided in the tilting type melting furnace unit to make molten aluminum in a liquid phase; The tilting type metering furnace is disposed adjacent to the tilting melting furnace, and the tilting melting furnace is tilted in the tilting metering direction so that the molten aluminum contained in the tilting melting furnace is poured and transported into a tilting metering furnace composed of a concave bowl-like member; The molten aluminum transferred from the tilting melting furnace is metered in a tilting type metering furnace while tilting the tilting metering furnace in the direction of stirring to inject the molten aluminum contained therein into the molten aluminum by stirring; The molten aluminum poured from the tilting metering furnace and the necessary additives are stirred in the stirring furnace and then the molten foam is injected into the empty mold transferred by the transfer device through the lower end of the stirring furnace to produce the aluminum foam .

In the aluminum foam producing apparatus and the manufacturing method of the present invention, the tilting type melting furnace unit is provided with a rotating plate; The tilting melting furnace is provided on the upper surface of the rotating plate in a plurality of rotational circumferential directions; Each of the waiting tilting melting furnaces containing molten aluminum is sequentially disposed at a position adjacent to the tilting metering furnace by the rotation of the rotating plate. When the molten aluminum is poured into the tilting metering furnace from the tilting melting furnace and transported , The rotating plate is rotated so that each tilting melting furnace containing molten aluminum is sequentially disposed at a position adjacent to the tilting metering chamber and then the tilting melting furnace is tilted.

Alternatively, each of the plurality of tilting melting furnaces may be provided at a position where the tilting melting furnace can be tilted adjacent to the tilting metering tilting unit, and may be configured to be sequentially tilted.

According to the present invention, molten aluminum dissolved in a melting furnace is not directly introduced into an agitating furnace, but is contained in a tilting type metering furnace and metered to an accurate working amount and poured into an agitating furnace, whereby a thickener, foaming agent, The aluminum foil is uniformly dispersed and mixed in the molten aluminum in a predetermined amount in accordance with the designed ratio to the molten aluminum so that the aluminum foams of high quality can be efficiently produced.

Particularly, in the present invention, molten aluminum is transferred by tilting with a tilting melting furnace and a tilting type metering. Therefore, there is no need for an operator to carry out manual operation of transferring molten aluminum directly, In addition, the speed of progress of the manufacturing process can be improved more rapidly, so that the production efficiency can be greatly increased, thereby reducing the work loss and the defect rate, and consequently, Can be demonstrated.

Further, in the present invention, since a plurality of tilting melting furnaces are provided, the temperature control of the molten aluminum can be performed more precisely and easily, and in particular, the plurality of tilting melting furnaces are sequentially tilted to transfer the molten aluminum to the tilting metering furnace , The molten aluminum can be continuously supplied continuously to the stirring furnace without interruption, thereby ensuring continuity and promptness of the production process, thereby improving the speed of the production process and improving the production efficiency, thereby greatly reducing the production cost of aluminum foams The effect is achieved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing a main configuration of an apparatus for producing an aluminum foam according to the present invention; FIG.
2 is a schematic perspective view showing only a rotary tilting type melting furnace unit, a tilting type metering furnace and stirring in an aluminum foam producing apparatus according to the first embodiment of the present invention.
FIG. 3 is a schematic perspective view sequentially showing a process of manufacturing an aluminum foam in a tilting type metering furnace and a stirrer in a rotary tilting type melting furnace unit of an aluminum foam producing apparatus according to a first embodiment of the present invention.
4 is an enlarged perspective view showing only a tilting process of the tilting melting furnace shown in FIG. 3 (b).
5 is an enlarged perspective view showing only the tilting process of the tilting type metering shown in FIG. 3 (c).
FIG. 6 is a schematic perspective view showing a process of sequentially manufacturing an aluminum foam in an aluminum foam manufacturing apparatus according to a second embodiment of the present invention which does not use a rotating plate.
FIG. 7 is a schematic perspective view showing an enlarged view of the state shown in FIG. 6 (b).
8 is an enlarged perspective view of the state shown in Fig. 6 (c).
Figs. 9 and 10 are schematic views corresponding to Fig. 7 showing a state in which each tilting furnace adjacent to the tilting metering furnace is tilted in the apparatus for producing aluminum foam according to the second embodiment of the present invention shown in Fig. 6 It is a perspective view.
Fig. 11 is a schematic perspective view corresponding to Fig. 2 for a third embodiment of the present invention in which a separate trough member is used for each tilting melting furnace.
12 is a schematic perspective view showing a state in which one tilting melting furnace is inclined in the third embodiment of the present invention shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that the technical idea of the present invention and its essential structure and operation are not limited thereby.

FIG. 1 is a schematic view showing a main configuration of an apparatus 100 for manufacturing an aluminum foam according to the present invention. FIG. 2 is a schematic view showing a configuration of a tilting type melting furnace unit 1 in an apparatus 100 for producing aluminum foam according to the present invention. , A tilting metering furnace (2), and an agitating furnace (3).

As shown in the drawing, the aluminum foam producing apparatus 100 of the present invention is characterized in that the tilting type melting furnace unit 1, the tilting metering furnace 2 and the stirring furnace 3 are sequentially arranged in the order in which the aluminum foams are produced And a transfer device 4 for transferring preformed molten aluminum in the form of a molten aluminum in the form of a mold 41 for molding an aluminum foam is disposed under the agitating furnace 3.

The tilting type melting furnace unit 1 includes a plurality of tilting melting furnaces 11 which are made of molten aluminum in the form of molten aluminum ingots. Each of the plurality of tilting melting furnaces 11 is rotatably coupled to a vertically erected support base 12 so that the upper portion of the tilting metering furnace 2 is tilted in a tilting metering state 2 . That is, the tilting melting furnace 11 is tilted in the direction of the tilting metering 2 positioned adjacent to the tilting furnace 11, so that the contents (molten aluminum) contained in the tilting melting furnace 11 are tilted to the tilting metering furnace 2 Is supplied.

2 to 5, the tilting type melting furnace unit 1 in the aluminum foam producing apparatus 100 according to the first embodiment of the present invention is a tilting type melting furnace unit 1 in which a plurality of tilting furnaces 11 are arranged in a circumferential direction Tilting type furnace unit disposed along the " rotating " Specifically, in the first embodiment of the present invention, the rotary plate 10 provided in the tilting type melting furnace unit 1 is a rotatable plate, and a plurality of tilting melting furnaces 11 are continuously arranged in the circumferential direction rotating on the upper surface thereof . Therefore, the tilting and melting furnace 11 is sequentially adjacent to the tilting metering furnace 2 while the rotating plate 10 is rotated. That is, each of the tilting melting furnaces 11, which are made of molten aluminum by melting the aluminum ingots, are adjacent to the tilting metering furnace 2 sequentially as the rotary plate 10 rotates, and the molten aluminum And supplied to the tilting type metering furnace 2.

The tilting type metering furnace 2 is a concave bowl-shaped member disposed adjacent to the rotary tilting type melting and melting furnace unit 1 and measures molten aluminum poured from each tilting melting furnace 11 in a predetermined amount, And is introduced into the agitating furnace 3 where it is disposed. The tilting type weighing furnace 2 is also rotatably coupled to the rotary support frame 20 so that the upper portion of the molten aluminum is inclined upwardly in the direction of the stirrer 3 and the entire molten aluminum contained therein is poured into the stirring furnace 3 do. That is, the tilting meter 2 can also be tilted in the (3) direction by the subsequent stirring.

The stirring furnace (3) is a member which uniformly disperses necessary additives such as a thickening agent and a foaming agent put into molten aluminum by stirring and then pours the molten aluminum into the mold (41). Although not shown in the drawings, a stirrer is provided in the stirrer 3, and an opening / closing port is formed in the lower end of the stirrer 3, so that the necessary additives are uniformly dispersed in molten aluminum, The molten metal is injected into the mold 41 located at the lower portion thereof through the opening and closing port. The plurality of molds 41 are transferred by the transfer device 4 while being preheated, and sequentially positioned below the opening / closing port of the agitating furnace 3.

3 shows a process of manufacturing an aluminum foam through the tilting type melting furnace unit 1, the tilting metering furnace 2 and the stirring furnace 3 in the aluminum foam producing apparatus 100 according to the first embodiment of the present invention. A schematic perspective view is shown sequentially. FIG. 4 is a schematic perspective view showing an enlarged view of only the tilting process of the tilting melting furnace 11 shown in FIG. 3 (b). FIG. 5 shows a tilting metering furnace 2 And FIG. 5 is a perspective view schematically showing an enlarged view of the tilting process of FIG. An enlarged view of the state shown in Fig. 3 (a) is shown in Fig.

In the method of producing an aluminum foam using the apparatus 100 for producing an aluminum foam according to the first embodiment of the present invention, molten aluminum is produced by first injecting an aluminum ingot into the tilting melting furnace 11 and dissolving it. In the tilting type melting furnace unit 1 provided in the aluminum foam producing apparatus 100 according to the first embodiment of the present invention, since the plurality of tilting melting furnaces 11 are placed on the rotating plate 10, The respective tilting melting furnaces 11 containing molten aluminum are sequentially brought to the injection position for the subsequent tilting metering furnace 2. That is, when the molten aluminum contained in one tilting melting furnace 11 is transferred to the tilting metering furnace 2, the rotating plate 10 is rotated so that another tilting melting furnace 11 is adjacent to the tilting metering furnace 2 It comes to the position. A new aluminum ingot is continuously introduced into the tilting melting furnace 11 where the molten aluminum has been completely transferred and becomes empty, and is melted. As described above, in the aluminum foam manufacturing apparatus 100 according to the first embodiment of the present invention, a plurality of tilting melting furnaces 11 are placed on the rotary plate 10, the rotary plate 10 is rotated, and the tilting melting furnace 11 sequentially The molten aluminum ingot and the work for supplying the molten aluminum to the tilting metering furnace 2 continue to progress. Therefore, according to the present invention, the production process of the aluminum foam can be continued without interruption, and the production efficiency can be greatly improved, and as a result, the production cost of the aluminum foam can be lowered.

 In the first embodiment of the present invention, when the tilting melting furnace 11 containing molten aluminum comes to a position adjacent to the tilting metering furnace 2, as shown in Fig. 3 (b) and Fig. 4, (11) tilts and tilts so that the molten aluminum contained therein is poured into the tilting metering furnace (2). At this time, a trough member 15 having a U-shaped cross-sectional shape, in which the pipe is cut in half, is disposed in the tilting furnace 11 so that the molten aluminum can be easily transferred to the tilting metering furnace 2 without being lost. ) And the tilting metering path (2). When the trough member 15 is disposed, the molten aluminum poured from the inclined tilting furnace 11 flows along the trough member 15 without being lost and is transferred to the tilting metering furnace 2. The inner surface of the trough member 15 is covered with a refractory material.

Since the capacity for containing molten aluminum is predetermined in the tilting type metering furnace 2, the operator only counts the number of times supplied from the tilting melting furnace 11 to the tilting metering furnace 2, 1 can accurately be quantified. Of course, the amount of molten aluminum contained in the tilting metering furnace 2 can be measured more precisely by adding a metering means such as a scale to the tilting metering furnace 2.

When the molten aluminum is contained in the tilting metering furnace 2, the molten aluminum contained in the tilting metering furnace 2 is tilted in the direction (3) by stirring as shown in Fig. 3 (c) and Fig. 5 As shown in FIG. At this time, the trough member 15 having a U-shaped cross-sectional shape in which the pipe is cut in half so that the molten aluminum is not lost but can be easily transferred from the tilting metering tank 2 to the stirring tank 3, Can be arranged between the tilting type metering furnace (2) and the agitation furnace (3).

After the molten aluminum is transferred to the step (3) by stirring, necessary additives such as a thickener and a blowing agent are added. The required additives can be directly injected into the agitating furnace 3 by using a measuring means such as a known measuring cup. However, the required additives can be added to the agitating furnace 3 by agitating using the automatic drug introducing device (not shown) .

As described above, molten aluminum is metered into the amount required for stirring (3) through the tilting melting furnace (11) and the tilting metering furnace (2) and added to the stirring furnace (3) The molten aluminum and the required additive are stirred in the stirring furnace 3 so that the necessary additives are uniformly dispersed in the molten aluminum. After the mold 41 preheated at the lower end of the stirrer 3 is located, the openings are opened After the stirring, the molten metal in the liquid phase falls and is injected into the mold 41 and foamed to be made into a final aluminum foam.

A series of processes as described above, that is, the process described with reference to FIGS. 3B and 3C, and the stirring with the stirrer 3 and the injection into the mold 41 are performed by the tilting melting furnace 11 ) Is emptied. In the first embodiment of the present invention shown in Figs. 2 to 5, when the tilting melting furnace 11 is empty, a new tilting melting furnace 11, in which molten aluminum is contained, The tilting melting furnace 11, the tilting metering furnace 2, the stirrer furnace 3 and the mold 41 are repeatedly performed.

As described above, in the present invention, molten aluminum dissolved in a melting furnace is not directly introduced into an agitating furnace, but is put into a tilting metering furnace (2) and then introduced into a stirring furnace. Since the tilting type weighing machine (2) has a predetermined capacity, the operator can put the molten aluminum in the tilting type weighing machine (2) while weighing the required amount of molten aluminum into the mixing vessel (3) The exact amount of molten aluminum that corresponds to the amount of additive required can be mixed with the required additive (3) by stirring.

If molten aluminum is poured directly from the melting furnace into a stirring furnace without a tilting meter (2), it is practically impossible to precisely weigh the molten aluminum and introduce it into the stirring furnace. However, in the present invention, the molten aluminum can be accurately weighed and metered in as required by using the tilting-type weighing furnace (2) as described above. That is, according to the present invention, quantitative mixing of the molten aluminum and necessary additives is easily performed. Therefore, according to the present invention, the molten aluminum can be accurately weighed and mixed with the necessary additives, thereby reducing the occurrence of work loss and defects during the production process, and it is possible to produce a superior quality aluminum foam.

Particularly, in the present invention, when the molten aluminum is transferred in the order of the tilting melting furnace, the tilting type metering furnace and the stirring, the melting furnace and the weighing furnace are tilted, Therefore, not only the safety of the operator can be achieved, but also the speed of progress of the production process can be improved more rapidly, so that the production efficiency can be greatly increased and the production cost of the aluminum foam can be greatly reduced .

Further, in the first embodiment of the present invention, as described above, a plurality of tilting melting furnaces 11 are provided and installed on the rotary plate 10 so as to sequentially rotate and to be positioned adjacent to the tilting metering furnace 2 do. Therefore, when the tilting melting furnace 11 is tilted and the molten aluminum contained therein is poured into the tilting metering furnace 2, the other tilting melting furnace 11 contains aluminum in a molten state, When the molten aluminum transfer from one tilting furnace to the tilting metering furnace is completed, the other tilting melting furnace that is in the standby position is positioned adjacent to the tilting metering furnace by rotation, and the molten aluminum transfer operation continues. The aluminum ingot is again injected into the tilting melting furnace which is filled with molten aluminum, and the molten aluminum ingot is melted and is in a standby state for transfer to the subsequent process.

Also, in the first embodiment of the present invention, a plurality of tilting melting furnaces 11 are installed on the rotary plate 10 and sequentially rotate to come to a position adjacent to the tilting metering furnace 2 and to melt in the tilting metering furnace 2 The molten aluminum can be fed continuously to the molten aluminum (3) continuously without interruption, thereby ensuring the continuity and speed of the manufacturing process, thereby improving the speed of the production process and improving the production efficiency The effect of significantly reducing the production cost of the aluminum foam is exhibited.

A plurality of tilting melting furnaces 11 are installed on a rotating rotary plate 10 so that each of the tilting melting furnaces 11 sequentially moves to a tilting position adjacent to the tilting meter 2 The present invention is not limited to such an embodiment, but an apparatus 100 for manufacturing an aluminum foam according to the present invention is not limited to such an embodiment.

6 to 10, a plurality of tilting melting furnaces are provided at respective tilting positions adjacent to the tilting metering furnace 2 so that the tilting melting furnaces can be sequentially tilted Another embodiment of the present invention will be described. For convenience, only three tilting melting furnaces are shown in FIG. 6 to FIG. 10, among which the central tilting melting furnace 11A is assigned, and the tilting melting furnaces respectively located on both sides thereof are designated 11B and 11C Respectively. However, in the present invention, the number of tilting melting furnaces provided in the tilting type melting furnace unit 1 is not limited to three as shown in the drawing, but may be provided in a number larger than that.

6 shows a process of producing an aluminum foam in a tilting-type metering furnace, a tilting metering furnace and an agitating furnace of an aluminum foam producing apparatus 100 according to a second embodiment of the present invention which does not use the rotary plate 10, FIG. 7 is a schematic perspective view showing an enlarged view of the state shown in FIG. 6 (b), and FIG. 8 is an enlarged view of the state shown in FIG. 6 (c) A schematic perspective view is shown.

In the aluminum foam producing apparatus 100 according to the second embodiment of the present invention shown in Figs. 6 to 10, similarly to the first embodiment of the present invention, the tilting type melting furnace unit 1 is divided into a plurality of tilting melting furnaces And each of the plurality of tilting melting furnaces is rotatably coupled to a vertically erected support base 12 so that the upper portion can be inclined in the direction of the tilting metering furnace 2 so that the contents contained in the tilting melting furnace Molten aluminum) is supplied to the tilting-type weighing furnace 2. However, the plurality of tilting melting furnaces are provided on the rotary plate 10 so as not to be sequentially positioned adjacent to the tilting-type metering furnace 2 in accordance with the rotation of the rotary plate 10, Is installed at a tilting position adjacent to the tilting metering chamber (2).

The central tilting melting furnace 11A containing the molten aluminum is tilted and poured into the tilting metering furnace 2 as shown in FIG. 6 (b) and FIG. 7, The molten aluminum contained in the tilting metering furnace 2 is fed into the stirring furnace 3 while being inclined in the direction of (3) by stirring as shown in (c) of FIG. 6 and FIG. The stirring process (3) and the injection process into the mold 41 are the same as those of the first embodiment of the present invention.

When the central tilting melting furnace 11A is emptied by repeating this process, another tilting melting furnace 11B which is adjacent to the tilting metering furnace 2 as shown in FIG. 9 is tilted, A series of processes leading to the metering furnace 2, the stirring furnace 3 and the mold 41 is performed, and this is repeated until the tilting melting furnace 11B is emptied. Thereafter, another tilting melting furnace 11C adjacent to the tilting metering furnace 2 as shown in FIG. 10 repeats the above process.

In the second embodiment of the present invention shown in Figs. 6 to 10, a plurality of tilting melting furnaces 11A, 11B, and 11C supply molten aluminum to the tilting metering furnace 2 by using one trough member 15 The molten aluminum may be supplied to the tilting metering furnace 2 by using individual trough members 15 for each of the plurality of tilting melting furnaces 11A, 11B and 11C. Fig. 11 shows a schematic perspective view corresponding to Fig. 2 for the third embodiment of the present invention in which individual trough members 15 are used for each tilting melting furnace, and Fig. 12 shows a cross- There is shown a schematic perspective view showing a state in which one tilting melting furnace is inclined in the third embodiment of the present invention. 6 to 12 are the same as those of the first embodiment of the present invention described above, and therefore, a repetitive description thereof will be omitted. It is omitted.

1: Rotating tilting melting furnace unit
2: With tilting weighing
3: With agitation
4: Feeding device
10: Spindle plate
11: Tilting melting furnace
41: Mold

Claims (6)

A tilting type metering furnace 2 and an agitating furnace 3 are sequentially positioned in a tilting type melting furnace unit 1 and a transfer device 4 for transferring the mold 41 below the agitating furnace 3, Are arranged in a row;
The tilting type melting furnace unit 1 includes a tilting melting furnace 11 for melting an aluminum ingot to make molten aluminum in a liquid state and a trough member 15 having a U- The tilting melting furnace 11 is tilted toward the trough member 15 to pour molten aluminum contained therein into the trough member 15 so as to be adjacent to the trough-type metering furnace 11 To the arranged tilting metering furnace (2);
A trough member 15 having a U-shaped cross-sectional shape obtained by cutting a pipe in half is disposed between a tilting metering furnace 2 and an agitation furnace 3, and the tilting metering furnace 2 is provided with a concave member And the tilting metering furnace 2 is constructed so as to be able to be tilted in the direction of the agitation 3 and tilted toward the trough member 15 so as to be transported from the tilting melting furnace 11 to be transported, The molten aluminum is poured into the trough member 15 and is introduced into the stirring furnace 3 which is arranged at a subsequent position;
The stirrer 3 is equipped with a stirrer to stir the molten aluminum poured and transferred from the tilting metering furnace 2 and the required additive, and then the molten aluminum 41, which has been transferred by the transfer device 4 in the preheated state, Is located at the lower end of the stirring furnace 3, the molten metal is injected into the empty mold 41 while the opening / closing port provided at the lower end of the stirring furnace 3 is opened,
The molten aluminum dissolved in the melting furnace is charged into the step (3) with stirring while weighing the required amount by the tilting-type metering of the preset capacity (2) to produce an aluminum foam;
The tilting type melting furnace unit (1) is provided with a rotary plate (10);
The plurality of tilting melting furnaces (11) are arranged in the circumferential direction on the upper surface of the rotary plate (10);
The tilting melting furnace 11 containing the molten aluminum comes to a position where it can be tilted next to the tilting metering furnace 2 sequentially by the rotation of the rotary plate 10 so that one tilting melting furnace 11 is inclined The molten aluminum contained in the molten aluminum is poured into the tilting metering furnace 2 and is transferred to the other tilting melting furnace 11. In the other tilting melting furnace 11, The other tilting melting furnace which is in the standby state is positioned adjacent to the tilting metering furnace by the rotation and is tilted to continue the molten aluminum transfer operation. The tilting melting furnace which is filled with the molten aluminum again is filled with the aluminum ingot And the molten aluminum ingot is melted and is in a standby state for transfer to the subsequent process, Wherein the molten aluminum is continuously fed to the step (3) by stirring.
delete delete A tilting type metering furnace 2 and a stirring furnace 3 are successively positioned in a tilting type melting furnace unit 1 and a transfer device 4 for transferring the mold 41 is arranged below the stirring furnace 3 Aluminum foams are produced by using an apparatus for producing aluminum foams having a constitution as described above,
An aluminum ingot is introduced into a tilting melting furnace 11 provided in a tilting type melting furnace unit 1 and melted to make molten aluminum in a liquid phase;
The tilting melting furnace 11 is placed adjacent to the tilting metering furnace 2 and a trough member 15 having a U-shaped cross-sectional shape obtained by cutting the pipe in half is placed in a tilting melting furnace 11 and a tilting- The tilting melting furnace 11 is tilted toward the trough member 15 and the molten aluminum contained in the tilting melting furnace 11 is poured into the trough member 15 to be disposed adjacent To a tilting metering furnace (2) made of a concave member;
A trough member 15 having a U-shaped cross-sectional shape in which a pipe is cut in half between a tilting metering furnace 2 and an agitation furnace 3 is poured from the tilting melting furnace 11, The molten aluminum transferred through the member 15 is weighed in the tilting metering furnace 2 while tilting the tilting metering furnace 2 in the direction of (3) by stirring so that the molten aluminum contained in the troughing metering furnace 2 15 into the stirring furnace 3 arranged at a subsequent position;
The molten aluminum poured from the tilting metering furnace (2) and the required additives are stirred in (3) with stirring;
The empty mold 41 is transferred in a preheated state by the transfer device 4 to be positioned at the lower end of the stirring path 3 and the opening provided at the lower end of the stirring path 3 is opened, 41,
The molten aluminum dissolved in the melting furnace is charged into the step (3) with stirring while weighing the required amount by the tilting-type metering of the preset capacity (2) to produce an aluminum foam;
The tilting type melting furnace unit (1) is provided with a rotary plate (10);
The plurality of tilting melting furnaces (11) are arranged in the circumferential direction on the upper surface of the rotary plate (10);
The tilting melting furnace 11 containing the molten aluminum comes to a position where it can be tilted next to the tilting metering furnace 2 sequentially by the rotation of the rotary plate 10 so that one tilting melting furnace 11 is inclined The molten aluminum contained in the molten aluminum is poured into the tilting metering furnace 2 and is transferred to the other tilting melting furnace 11. In the other tilting melting furnace 11, The other tilting melting furnace which is in the standby state is positioned adjacent to the tilting metering furnace by rotation and continues tilting and continues the molten aluminum transfer operation. In the tilting melting furnace which is filled with the molten aluminum, The molten aluminum ingot is melted and is in a standby state for transfer to the subsequent process, Wherein the molten aluminum is continuously fed continuously to the step (3) with stirring. delete delete
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101902073B1 (en) * 2016-10-31 2018-10-01 한국생산기술연구원 Vacuum melting apparatus and its method for casting process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101902073B1 (en) * 2016-10-31 2018-10-01 한국생산기술연구원 Vacuum melting apparatus and its method for casting process

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