KR20160109894A - Different kinds rod or different kinds tube cast apparatus and cast method thereof - Google Patents

Different kinds rod or different kinds tube cast apparatus and cast method thereof Download PDF

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Publication number
KR20160109894A
KR20160109894A KR1020150035120A KR20150035120A KR20160109894A KR 20160109894 A KR20160109894 A KR 20160109894A KR 1020150035120 A KR1020150035120 A KR 1020150035120A KR 20150035120 A KR20150035120 A KR 20150035120A KR 20160109894 A KR20160109894 A KR 20160109894A
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KR
South Korea
Prior art keywords
molten material
metal
tube
injection port
molten
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KR1020150035120A
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Korean (ko)
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원종진
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원종진
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Priority to KR1020150035120A priority Critical patent/KR20160109894A/en
Publication of KR20160109894A publication Critical patent/KR20160109894A/en

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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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/041—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for vertical casting

Abstract

The present invention relates to an apparatus and a method for casting different kinds of rods or tubes. According to the present invention, the apparatus continuously forms pipes by injecting a first molten material and injects a second molten material into the continuously formed pipes, thereby continuously forming rods or tubes in the pipes. To achieve this, an upper mold has a separation member. Therefore, the present invention enables the manufacture of rods or tubes having inner and outer parts made of different kinds of materials.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a casting apparatus and a casting apparatus using the same,

The present invention relates to a technique for continuously casting a rod or tube.

An ingot cast ingot of cylindrical shape, cylindrical shape, prismatic shape or hollow cylindrical shape is produced by continuous casting of molten metal. 1, the molten metal MM injected through the upper mold 110 is forcedly cooled by the cooling water injected onto the outer surface of the mold 130 while being supported by the lower mold 120, do. And grows in a desired shape according to the descent of the lower mold 120.

In general, according to the continuous casting apparatus 100 shown in FIG. 1, the ingot grows in a state of being supported on the lower mold 120, and since it is inevitable to inject a single molten metal (MM), the mold- The ingot can not be grown in a separated state.

Korean Patent Publication No. 10-2005-0026493

An object of the present invention is to provide a technique in which a rod or a tube is manufactured while solidifying the different kinds of molten materials in a state where they are separated from each other.

In order to accomplish the above object, the present invention provides a heterogeneous rod forming apparatus comprising: an upper mold having a first injection port for injecting a first molten material and a second injection port for injecting a second molten material; A lower mold which is opposed to the upper mold and can be lowered from below the upper mold; And a lowering device for lowering the lower mold at a constant speed; Wherein the upper mold includes a first molten metal injected through the first injection port and a separation member for preventing the second molten metal injected through the second injection port from mixing with each other in a molten state, The first molten material and the second molten material are different materials.

The separating member may be in the shape of a tube so that a second molten material injected through the second injection port may be positioned inside the first molten material injected through the first injection port.

The lower mold is formed with an isolation wall extending upward to isolate the first molten material and the second molten material outward of the separating member.

The lower mold has a protruding portion protruding upward at a position corresponding to the separating member.

The first molten material is a first metal and the second molten material is a second metal different from the first metal.

According to another aspect of the present invention, there is provided a heterogeneous tube casting apparatus including: an upper mold having a first injection port for injecting a first molten material and a second injection port for injecting a second molten material; A lower mold which is opposed to the upper mold and can be lowered from below the upper mold; And a lowering device for lowering the lower mold at a constant speed; Wherein the upper mold comprises: a tubular separating member for separating the first inlet and the second inlet from each other; And a space holding member located inside the separating member; Wherein the first molten material and the second molten material are different materials.

The lower mold is formed with an isolation wall extending upward to isolate the first molten metal and the second molten metal from the outer side of the separating member.

The lower mold has a protruding portion protruding upward at a position corresponding to the separating member.

The first molten material is a first metal and the second molten material is a second metal different from the first metal.

In order to accomplish the above object, a heterogeneous rod forming method according to the present invention comprises: a tube forming step of continuously forming a tube by injecting a first molten material; And forming a rod continuously in the tube by injecting a second molten material into the tube continuously formed in the tube forming step; Wherein the first molten material and the second molten material are different materials.

The first molten material is a first metal and the second molten material is a second metal different from the first metal.

According to another aspect of the present invention, there is provided a heterogeneous tube casting method comprising: a first tube forming step of continuously forming a first tube-shaped tube by injecting a first molten material; And a second tube forming step of injecting a second molten material into the first tube continuously formed in the first tube forming step to continuously form a tube-shaped second tube; Wherein the first molten material and the second molten material are different materials.

The first molten material is a first metal and the second molten material is a second metal different from the first metal.

According to the present invention, since a rod or a tube is produced while different kinds of molten materials are solidified separately from each other, a mold or rod can be manufactured.

Particularly, in the case of a rod or tube made of a metal material having different properties from the inside and the outside, various usability can be obtained.

1 is a schematic cross-sectional view of a conventional metal rod casting apparatus.
2 is a schematic cross-sectional view of a heterogeneous rod forming apparatus according to a first embodiment of the present invention.
Fig. 3 is a reference diagram for explaining a method of manufacturing a dissimilar metal bar using the bar-casting apparatus of Fig. 2; Fig.
4 is a schematic cross-sectional view of a heterogeneous rod forming apparatus according to a second embodiment of the present invention.
5 is a reference diagram for explaining a method of manufacturing a dissimilar metal rod using the rod-shaped apparatus of FIG.
6 is a schematic cross-sectional view of a heterogeneous tube casting apparatus according to a third embodiment of the present invention.
FIG. 7 is a reference view for explaining a method of manufacturing a dissimilar metal tube using the heterogeneous tube casting apparatus of FIG. 6; FIG.
8 is a schematic cross-sectional view of a heterogeneous tube casting apparatus according to a fourth embodiment of the present invention.
9 is a reference view for explaining a method of manufacturing a dissimilar metal pipe using the heterogeneous tube casting apparatus of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. For simplicity of description, redundant description is omitted or compressed as much as possible.

≪ Embodiment 1 >

2 is a schematic cross-sectional view of a heterobar casting apparatus 200 according to a first embodiment of the present invention.

The heterogeneous rod molding apparatus 200 according to the present embodiment includes an upper mold 210, a lower mold 220, a frame 230, and a descender 240.

The upper mold 210 has a first injection port 211 and a second injection port 212.

The first injection port 211 is in the form of a ring, and the first molten metal is injected through the first injection port 211. Here, the first molten metal may be a substance resistant to corrosion such as aluminum.

The second injection port 212 is located inside the first injection port 211 and the second molten metal is injected through the second injection port 212. Here, the second molten metal may be a material having high electrical conductivity such as copper.

Of course, the first molten metal injected through the first injection port 211 or the second molten metal injected through the second injection port 212 may be selected as materials having different properties from one another . In addition, not only metals but also different kinds of resins and other materials can be selectively injected through the first inlet 211 or the second inlet 212. Further, the metal and the resin may be selectively injected through the first inlet 211 and the second inlet 212.

In the upper mold 210, a pipe-shaped separating member 213 extending downward is connected to the first molten metal injected through the first injection hole 211 and the second molten metal injected through the second injection hole 212, The lower space of the first injection port 211 and the lower space of the second injection port 212 are separated from each other to prevent them from being mixed with each other in the molten state. The first molten metal injected through the first injection port 211 is positioned on the outer side of the separating member 213 and the second molten metal injected through the second injection port 212 is positioned on the inner side of the separating member 213 . Here, the separating member 213 may be made of a material such as graphite to prevent adhesion of metal.

The lower mold 220 is provided below the upper mold 210 so as to be opposed to the upper mold 210 and can be lowered from the lower side of the upper mold 210 downward. The lower mold 220 is formed with a fixing wall 221 extending upward from the lower mold 220 so that the inner surface of the lower mold 220 can contact the outer surface of the separating member 213. The lower portion of the dissimilar metal bar produced by this fixing wall 221 is fixed.

The frame 230 determines the shape of the metal rod. Of course, such a frame 230 can be designed in various forms according to required conditions such as a cylindrical shape or a polygonal cylindrical shape.

The descender 240 descends the lower mold 220 at a constant speed corresponding to the growth of the solidified metal rods.

Next, a method of casting a different kind of rod according to the operation of the heterogeneous rod molding apparatus 200 having the above structure will be described.

The first molten metal MM 1 is injected into the first injection port 211 and the second molten metal MM 2 is injected into the second injection port 212 as shown in FIG. The injected first molten metal (MM 1 ) can not be moved inward by the separating member 213, but becomes solid only on the outer side. Also, the second molten metal (MM 2 ) can not be moved outwardly by the separating member 213, but becomes solid only on the inner side. At the same time, the cooling material (which may be cooling water or other cooling fluid) is injected to the outside of the mold 230, and the first molten metal MM 1 directly contacting the mold 230 solidifies into a metal tube. 3 (b), the descender 240 moves down the lower mold 220 corresponding to the solidified state of the first molten metal MM 1 . At this time, a solidified metal pipe MT is formed at a certain height, but a second molten metal (MM 2 ) which maintains the melted state is located inside. This is because the first molten metal (MM 1 ) first solidifies and the second molten metal (MM 2 ) solidifies later because it is cooled from the outside by the cooling material.

On the other hand, the second molten metal MM 2 on the inner side penetrates into the space occupied by the separating member 213 and is cooled while being in contact with the outer metal pipe MT, and then solidified in the form of a metal rod MR.

In the above method, the metallic pipe MT on the outside and the metal rod MR on the inside are continuously formed with a time difference, and accordingly, the descender 240 continuously lowers the lower mold 220, A different metal bar (DMR) of the required key is produced as in c).

Of course, the thickness of the outer metal tube MT and the diameter of the inner metal rod MR can be changed by designing the position of the separating member 213 and the fixing wall 221 according to the required conditions.

≪ Embodiment 2 >

4 is a schematic cross-sectional view of a heterogeneous rod forming apparatus 400 according to a second embodiment of the present invention.

The heterogeneous rod molding apparatus 400 according to the present embodiment includes an upper mold 410, a lower mold 420, a frame 430, and a descender 440.

The upper mold 410 has a first injection port 411 and a second injection port 412.

The first injection port 411 is in the form of a ring, and the first molten metal is injected through the first injection port 411.

The second injection port 412 is located inside the first injection port 411 and the second molten metal is injected through the second injection port 412. Of course, the first molten metal and the second molten metal are different metal materials in terms of the properties of metals such as corrosion resistance, conductivity, strength and the like.

The upper mold 410 is provided with a pipe-shaped separating member 413 extending downward.

The lower mold 420 is provided below the upper mold 410 so as to be opposed to the upper mold 410 and can be lowered from the lower side of the upper mold 410 downward. In the lower mold 420, a protruding portion 422 protruding upward is formed at a position corresponding to the separating member 413.

Therefore, the first molten metal and the second molten metal are isolated by the protruding portion 422 and the separating member 413, thereby preventing them from being mixed with each other in a molten state.

The frame 430 determines the shape of the metal rod.

The descender 440 lowers the lower mold 420 at a constant speed corresponding to the growth of the solidified metal rods.

5 (a) to 5 (c), the metal tube MT is continuously formed while the first molten metal MM 1 on the outer side is first solidified, The inner second molten metal (MM 2 ) is later solidified to produce a heterogeneous metal rod (DMR) that is ultimately required.

≪ Third Embodiment >

6 is a schematic cross-sectional view of a heterogeneous tubular casting apparatus 600 according to a third embodiment of the present invention.

The heterogeneous tube casting apparatus 600 according to the present embodiment includes an upper mold 610, a lower mold 620, a mold and a descender 630.

The upper mold 610 has a first injection port 611 and a second injection port 612. This upper mold 610 has a separating member 613 and a space holding member 614. [

The separating member 613 prevents the first molten metal and the second molten metal from mixing with each other in a molten state.

The space holding member 614 may be in the form of a rod (which may be in the form of a tube) and is disposed inside the separating member 613 and extends downward. The space holding member 614 is provided to maintain the hollow space so that the second molten metal solidifies and maintains the shape of the pipe.

The lower mold 620 is disposed below the upper mold 610 so as to face the upper mold 610 and can be lowered from the lower side of the upper mold 610 downward. In the lower mold 620, a fixing wall 621 is formed extending upward. The lower mold 620 has a space holding groove 623 located inside the fixing wall 621 so as to correspond to the space holding member 614.

The frame 630 determines the shape of the metal tube.

The descender 640 lowers the lower mold 620 at a constant speed corresponding to the growth of the solidified metal tube.

Next, a description will be given of a method of casting a heterogeneous tube according to the operation of the heterogeneous tube casting apparatus 600 having the above structure.

The first molten metal MM 1 is injected into the first injection port 611 and the second molten metal MM 2 is injected into the second injection port 612 as shown in FIG. The injected first molten metal MM 1 can not be moved inwardly by the separating member 613 but becomes solid only on the outer side. Also, the second molten metal (MM 2 ) can not be moved outwardly by the separating member 613, but becomes solid only on the inner side. Of course, the second molten metal MM 2 is not located in the space where the space holding member 614 is located. At the same time, the cooling material is injected onto the outer surface of the frame 630, and the first molten metal MM 1 in contact with the frame 630 is solidified to be in the form of a metal pipe MT-O. 3 (b), the lowering unit 630 moves down the lower mold 620 in response to the state where the first molten metal MM 1 is solidified. At this time, a solidified metal tube MT-O is formed at a predetermined height, but a second molten metal MM 2 that maintains the molten state is located inside.

On the other hand, the second molten metal MM 2 on the inside penetrates into the space occupied by the separating member 613 and is cooled while being in contact with the outer metal pipe MT-O, and then solidified in the form of a pipe.

In this way, the outer metal tube MT-O and the inner metal tube MT-I are continuously formed with a time difference, and accordingly, the lowering machine 640 continuously lowers the lower mold 620, A heterogeneous metal tube DMT of the key required in Fig. 3 (c) is produced.

<Fourth Embodiment>

8 is a schematic cross-sectional view of a heterogeneous tubular casting apparatus 800 according to a fourth embodiment of the present invention.

The heterogeneous tube casting apparatus 800 according to the present embodiment includes an upper mold 810, a lower mold 820, a frame 830, and a descender 840.

The upper mold 810 has a first injection port 811 and a second injection port 812. The upper mold 810 has a separating member 813 and a space holding member 814.

The lower mold 820 is provided below the upper mold 810 so as to face the upper mold 810 and can be lowered from the lower side of the upper mold 820 downward. In the lower mold 820, a protruding portion 822 protruding upward is formed at a position corresponding to the separating member 813. The upper surface of the protruding portion 822 has a smaller diameter than the protruding portion 822 and has a space holding groove 823 corresponding to the space holding member 814 by dicing downward.

The frame 830 determines the shape of the metal tube.

The descender 840 lowers the lower mold 820 at a constant speed corresponding to the growth of the solidified metal tube.

As the first molten metal (MM 1) of the outer first it solidified, as above, in a heterogeneous tube casting apparatus 800 (a) to (c) of Fig. 9 has the same configuration and the metal tube (MT) is formed continuously, The inner second molten metal (MM 2 ) is later solidified to produce a heterogeneous metal tube (DMT) which is ultimately required.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. And the scope of the present invention should be understood as the following claims and their equivalents.

200, 400: Metal rod casting apparatus
210, 410: upper mold
211, 411: first inlet 212, 412: second inlet
213, 413: separating member
220, 420: Lower mold
221: fixed wall 422: protruding portion
240, 440: descending
600, 800: Metal pipe casting system
610, 810: upper mold
611: first inlet port 612: second inlet port
613: separating member 614: space holding member
620, 820:
621: Fixing wall 822: Projecting part
623, 823: space holding groove

640, 840: descending

Claims (13)

An upper mold having a first injection port for injecting the first molten material and a second injection port for injecting the second molten material;
A lower mold which is opposed to the upper mold and can be lowered from below the upper mold; And
A lowering device for lowering the lower mold at a constant speed; Lt; / RTI &gt;
Wherein the upper mold includes a first molten metal injected through the first injection port and a separation member that prevents the second molten metal injected through the second injection port from mixing with each other in a molten state,
Wherein the first molten material and the second molten material are different materials
Heterogeneous rod casting device. The method according to claim 1,
Wherein the separating member is in the shape of a tube so that the second molten material injected through the second injection port can be positioned inside the first molten material injected through the first injection port
Heterogeneous rod casting device. The method according to claim 1,
And a fixing wall in contact with the outer surface of the separating member is extended upward from the lower mold.
Heterogeneous rod casting device. The method according to claim 1,
Wherein the lower mold has a protruding portion protruding upward at a position corresponding to the separating member
Heterogeneous rod casting device. The method according to claim 1,
Wherein the first molten material is a first metal and the second molten material is a second metal different from the first metal.
Heterogeneous rod casting device. An upper mold having a first injection port for injecting the first molten material and a second injection port for injecting the second molten material;
A lower mold which is opposed to the upper mold and can be lowered from below the upper mold; And
A lowering device for lowering the lower mold at a constant speed; Lt; / RTI &gt;
The above-
A tubular separating member for separating the first injection port and the second injection port; And
A space holding member located inside the separating member; / RTI &gt;
Wherein the first molten material and the second molten material are different materials
Dissimilar tubular casting equipment. The method according to claim 6,
And a fixing wall in contact with the outer surface of the separating member is extended upward from the lower mold.
Tube casting device. The method according to claim 6,
Wherein the lower mold has a protruding portion protruding upward at a position corresponding to the separating member
Dissimilar tubular casting equipment. The method according to claim 6,
Wherein the first molten material is a first metal and the second molten material is a second metal different from the first metal.
Heterogeneous rod casting device. A tube forming step of continuously forming a tube by injecting a first molten material; And
Forming a rod continuously in the tube by injecting a second molten material into the tube continuously formed in the tube forming step; Lt; / RTI &gt;
Wherein the first molten material and the second molten material are different materials
A heterogeneous rod casting method. 11. The method of claim 10,
Wherein the first molten material is a first metal and the second molten material is a second metal different from the first metal.
A heterogeneous rod casting method. A first tube forming step of continuously injecting a first molten material to continuously form a first tube-shaped tube; And
A second tube forming step of injecting a second molten material into the first tube continuously formed in the first tube forming step to continuously form a tube-shaped second tube; Lt; / RTI &gt;
Wherein the first molten material and the second molten material are different materials
(Method for casting two or more pipes). 13. The method of claim 12,
Wherein the first molten material is a first metal and the second molten material is a second metal different from the first metal.
(Method for casting two or more pipes).








KR1020150035120A 2015-03-13 2015-03-13 Different kinds rod or different kinds tube cast apparatus and cast method thereof KR20160109894A (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050026493A (en) 2002-07-22 2005-03-15 쇼와 덴코 가부시키가이샤 Continuous cast aluminum alloy rod and production method and apparatus thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050026493A (en) 2002-07-22 2005-03-15 쇼와 덴코 가부시키가이샤 Continuous cast aluminum alloy rod and production method and apparatus thereof

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