KR101841010B1 - Melting apparatus - Google Patents
Melting apparatus Download PDFInfo
- Publication number
- KR101841010B1 KR101841010B1 KR1020160006912A KR20160006912A KR101841010B1 KR 101841010 B1 KR101841010 B1 KR 101841010B1 KR 1020160006912 A KR1020160006912 A KR 1020160006912A KR 20160006912 A KR20160006912 A KR 20160006912A KR 101841010 B1 KR101841010 B1 KR 101841010B1
- Authority
- KR
- South Korea
- Prior art keywords
- electrode
- casing
- mold
- crucible
- specimen
- Prior art date
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/06—Heating or cooling equipment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
- F27B2014/068—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat with the use of an electrode producing a current in the melt
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sampling And Sample Adjustment (AREA)
- Furnace Details (AREA)
Abstract
A casing in which a space is formed; A crucible connected to a rotation axis extending from one surface of the casing to the inside of the casing, the mold coupled to one side, and a specimen accommodating portion formed on the upper side; And an electrode connected to one surface of the casing and positioned eccentrically from the center of the sample accommodating portion inside the casing.
Description
The present invention relates to a melting apparatus.
In general, a vacuum arc melting apparatus is used to manufacture an insert metal for brazing, an alloy of a high melting point high metal oxide, an amorphous (amorphous) or a special alloy. In order to obtain an alloy of high purity, an arc melting apparatus generates and dissolves arc in a metal under an inert gas atmosphere of vacuum. In this dissolution process, the specimen inside the crucible is melted inside the chamber and the melt is poured into the mold to cool it. In this process, the hot heat generated from the arc can not be transferred smoothly during the tilting process for pouring the melt in the crucible with the mold, so that the metal structure can be cooled in a heterogeneous state. There is a risk that the crucible of the metal material and the electrode rod come into contact with each other during the tilting of the crucible, resulting in a short circuit. Above all, the time point at which the melted material, which is distant from the electrode rod, is cooled when the crucible is tilted due to the electrode that generates an arc adjacent to the center of the crucible may start before being poured into the mold. The metal thus produced can be produced in an unstable state in which an unbalanced structure is formed and the physical properties such as the strength of the metal are unstable.
One embodiment of the present invention seeks to provide a melting apparatus in which molten specimens during cooling from a crucible to a mold delay the cooling rate.
And an embodiment of the present invention is to provide a melting apparatus in which the axis of the electrode is located close to the mold side from the center of the specimen accommodating portion of the crucible.
Further, an embodiment of the present invention is to provide a melting apparatus in which the rotation axis of a crucible is located close to a mold side from a center of a specimen accommodation portion of a crucible.
Another embodiment of the present invention is to provide a melting apparatus capable of controlling the change in length of the electrode in the height direction so that electricity can be sequentially applied from a position close to the electrode while the melt moves to the mold.
In addition, one embodiment of the present invention is to provide a melting apparatus capable of determining the moving path of an electrode by a servo motor connected to a sensor.
According to an embodiment of the present invention, there is provided a casing comprising: a casing having a space therein; A crucible connected to a rotation axis extending from one surface of the casing to the inside of the casing, the mold coupled to one side, and a specimen accommodating portion formed on the upper side; And an electrode connected to one surface of the casing and positioned eccentrically from the center of the sample accommodating portion inside the casing.
The rotary shaft may further include a tilting motor connected to the outer surface of the casing through the casing to adjust a rotation angle and a rotation speed.
Further, the rotating shaft may be connected to the side of the crucible between the central side of the specimen accommodating portion and the mold.
Further, the electrode may be formed to extend inward of the casing through a ball joint connected to the casing.
Further, the electrode may be positioned eccentrically from the center of the specimen accommodating portion to the mold side.
Also, a plurality of electrodes may be formed.
In addition, the electrodes may be adjustable in the longitudinal direction of the electrodes, respectively.
Further, when the side of the crucible where the mold is connected by the rotation shaft is tilted downward, the position of the electrode tip which is the end portion of the electrode can be further downward as the position is closer to the mold.
Further, the electrode can be eccentrically separated from the center of the specimen holder by at least one fifth of the radius of the melt, which can be placed in the specimen holder.
One embodiment of the present invention may provide a melting apparatus that slows down the rate at which molten specimens are cooled during transport from the crucible to the mold.
And, one embodiment of the present invention can provide a melting apparatus in which the axis of the electrode is located in the vicinity of the mold side from the center of the specimen accommodation portion of the crucible.
Further, an embodiment of the present invention can provide a melting apparatus in which the rotation axis of the crucible is located close to the mold side from the center of the specimen accommodation portion of the crucible.
In addition, one embodiment of the present invention can provide a melting apparatus capable of controlling the change in length in the height direction of the electrode and sequentially applying electricity to electrodes near the mold while the melt moves to the mold.
In addition, an embodiment of the present invention can provide a melting apparatus capable of determining the moving path of an electrode by a servo motor connected to a sensor.
1 is a perspective view of a melting apparatus according to an embodiment of the present invention;
2 is a view illustrating a melting process of a specimen according to an embodiment of the present invention;
3 is a view illustrating a process of melting a specimen by an inclined electrode according to an embodiment of the present invention
4 is a view showing a tilting structure of an electrode according to an embodiment of the present invention;
FIG. 5 illustrates melting of a test piece through a plurality of electrodes according to another embodiment of the present invention. FIG. 6 illustrates elevation control of an electrode according to another embodiment of the present invention.
7 is a view illustrating a process of melting a test piece by a plurality of oblique electrodes according to another embodiment of the present invention
Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. However, this is merely an example and the present invention is not limited thereto.
In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention or custom of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.
The technical idea of the present invention is determined by the claims, and the following embodiments are merely a means for effectively explaining the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs.
And to illustrate another embodiment of the present invention, the attached drawings show a melting apparatus for manual operation and the
In addition, in order to explain an embodiment different from the embodiment of the present invention, the electrical connection between the configurations shown in Figs. 1 to 5 is omitted. For example, the configuration of electrical connection between the
1 is a perspective view of a melting apparatus according to an embodiment of the present invention.
1, the melting apparatus may include a
Specifically, the
And a
A through hole may be formed in the
The
Specifically, the
1, the
The operation state of the
The distance between the
In this structure, a plurality of
The ball joint 270 may be formed to have a size corresponding to the
The
Specifically, the tilting
The tilting
The
When the
2 is a view showing a melting process of the
2 (a) shows a state in which the
Here, the
2B shows a state in which the
Here, the movement means that the
Thus, through this movement, the position of the
Since the
Here, the separation distance L1 may be, for example, a distance of 1/5 or more of the length from the center of the
The spacing L1 is such that when the
Therefore, in order to keep the separation distance L1, the
2 (c), the
For example, the
2, the
3 is a view illustrating a process of melting a specimen by an inclined electrode according to an embodiment of the present invention.
The
The
4 is a view showing a moving structure of the
As shown in FIG. 4, the movement of the
That is, when the melting apparatus is enlarged, the
5 and 6 are views showing a melting apparatus according to another embodiment of the present invention. Specifically, FIG. 5 illustrates a process of melting a sample through a plurality of electrodes, and FIG. 6 illustrates that electrodes are controlled in a height direction.
FIG. 5 illustrates an embodiment of a melting apparatus including at least one
In this case, the ball joint 270 may be formed to have a size corresponding to one side of the
The
In order to continuously generate an arc in the
6, when electricity is sequentially applied to continuously generate an arc in the
Therefore, the
FIG. 7 is a view showing a process of melting a
As described above with reference to FIGS. 1 to 6, each of the
At the same time, each
As the
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, but, on the contrary, . Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.
1: The Psalms
2: Melt
100: casing
110:
130:
150: Hinges
170: Joint
200: electrode part
210, 211, 212: electrodes
220, 221, 222: electrode tip
230: Cylinder
240: Handle
242:
243:
250: motor
270: ball joint
300: crucible part
310: Crucible
315: Specimen accommodating portion
320: Mold
330:
350: tilting motor
L1: separation distance
a: separation angle
Claims (8)
A crucible connected to a rotation axis extending from one surface of the casing to the inside of the casing, the mold being coupled to one side of the casing, And
And an electrode connected to one surface of the casing and positioned eccentrically to the mold side from a central portion of the sample accommodating portion inside the casing,
The electrode extending through the ball joint connected to the casing to the inside of the casing,
The axis of the electrode may be inclined toward the crucible direction or the mold direction in accordance with the rotation direction of the ball joint in the melting process,
A plurality of the electrodes are formed,
Wherein the plurality of electrodes are independently adjustable in the longitudinal direction of the electrodes,
Wherein when the crucible is tilted downwardly to the side to which the mold is connected by the rotation axis, the position of each of the electrode tips, which is the end of the electrode, can be positioned further downward as the position is closer to the mold.
Wherein the rotating shaft is connected to the side of the crucible between the center side of the specimen accommodating portion and the mold.
Wherein the electrode is eccentrically spaced from the center of the specimen accommodating portion by at least one fifth of the radius of the melt that can be placed in the specimen accommodating portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160006912A KR101841010B1 (en) | 2016-01-20 | 2016-01-20 | Melting apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160006912A KR101841010B1 (en) | 2016-01-20 | 2016-01-20 | Melting apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170087209A KR20170087209A (en) | 2017-07-28 |
KR101841010B1 true KR101841010B1 (en) | 2018-03-22 |
Family
ID=59422424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020160006912A KR101841010B1 (en) | 2016-01-20 | 2016-01-20 | Melting apparatus |
Country Status (1)
Country | Link |
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KR (1) | KR101841010B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190136476A (en) * | 2018-05-31 | 2019-12-10 | 영남대학교 산학협력단 | Melting apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000005866A (en) | 1998-06-23 | 2000-01-11 | Nisshin:Kk | Metal casting device, and metal casting method using it |
JP2003290909A (en) * | 2002-03-29 | 2003-10-14 | Yoshihiko Yokoyama | Arc casting apparatus |
JP2009068101A (en) * | 2007-09-18 | 2009-04-02 | Tohoku Univ | Large-sized bulk metallic glass and method for manufacturing large-sized bulk metallic glass |
-
2016
- 2016-01-20 KR KR1020160006912A patent/KR101841010B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000005866A (en) | 1998-06-23 | 2000-01-11 | Nisshin:Kk | Metal casting device, and metal casting method using it |
JP2003290909A (en) * | 2002-03-29 | 2003-10-14 | Yoshihiko Yokoyama | Arc casting apparatus |
JP2009068101A (en) * | 2007-09-18 | 2009-04-02 | Tohoku Univ | Large-sized bulk metallic glass and method for manufacturing large-sized bulk metallic glass |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190136476A (en) * | 2018-05-31 | 2019-12-10 | 영남대학교 산학협력단 | Melting apparatus |
KR102130163B1 (en) * | 2018-05-31 | 2020-07-03 | 영남대학교 산학협력단 | Melting apparatus |
Also Published As
Publication number | Publication date |
---|---|
KR20170087209A (en) | 2017-07-28 |
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