KR101590818B1 - Apparatus and Method for Producing Foam Aluminum - Google Patents
Apparatus and Method for Producing Foam Aluminum Download PDFInfo
- 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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- KR
- South Korea
- Prior art keywords
- tilting
- furnace
- molten aluminum
- metering
- melting furnace
- Prior art date
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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
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- 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
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- 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
Description
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, .
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
As shown in the drawing, the aluminum
The tilting type
2 to 5, the tilting type
The tilting
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
3 shows a process of manufacturing an aluminum foam through the tilting type
In the method of producing an aluminum foam using the
In the first embodiment of the present invention, when the tilting melting
Since the capacity for containing molten aluminum is predetermined in the tilting
When the molten aluminum is contained in the tilting
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
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
A series of processes as described above, that is, the process described with reference to FIGS. 3B and 3C, and the stirring with the
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
Also, in the first embodiment of the present invention, a plurality of tilting
A plurality of tilting
6 to 10, a plurality of tilting melting furnaces are provided at respective tilting positions adjacent to the tilting
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
In the aluminum
The central
When the central
In the second embodiment of the present invention shown in Figs. 6 to 10, a plurality of tilting
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)
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.
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.
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KR1020150124097A KR101590818B1 (en) | 2015-09-02 | 2015-09-02 | Apparatus and Method for Producing Foam Aluminum |
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KR1020150124097A KR101590818B1 (en) | 2015-09-02 | 2015-09-02 | Apparatus and Method for Producing Foam Aluminum |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101902073B1 (en) * | 2016-10-31 | 2018-10-01 | 한국생산기술연구원 | Vacuum melting apparatus and its method for casting process |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101902073B1 (en) * | 2016-10-31 | 2018-10-01 | 한국생산기술연구원 | Vacuum melting apparatus and its method for casting process |
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