KR101767173B1 - An apparatus for discharging ingot and a method for operating the same - Google Patents

An apparatus for discharging ingot and a method for operating the same Download PDF

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Publication number
KR101767173B1
KR101767173B1 KR1020150174710A KR20150174710A KR101767173B1 KR 101767173 B1 KR101767173 B1 KR 101767173B1 KR 1020150174710 A KR1020150174710 A KR 1020150174710A KR 20150174710 A KR20150174710 A KR 20150174710A KR 101767173 B1 KR101767173 B1 KR 101767173B1
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KR
South Korea
Prior art keywords
ingot
cooling
support
ingot support
motor
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KR1020150174710A
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Korean (ko)
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KR20170068023A (en
Inventor
문병문
정현도
서종현
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한국생산기술연구원
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Priority to KR1020150174710A priority Critical patent/KR101767173B1/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
    • B22D9/00—Machines or plants for casting ingots
    • 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
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • 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
    • B22D11/01—Continuous casting of metals, i.e. casting in indefinite lengths without moulds, e.g. on molten surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D9/00—Machines or plants for casting ingots
    • B22D9/006—Machines or plants for casting ingots for bottom casting

Abstract

An embodiment of the present invention provides an active metal ingot discharge apparatus for producing an ingot by continuously casting a metal molten body formed in a crucible in a directional solidification system and an operation method thereof. The active metal ingot discharge apparatus according to an embodiment of the present invention includes a draw chamber, an ingot support which is located inside the draw chamber, receives the metal melt from the crucible and continuously moves the metal melt continuously to form an ingot, A first cooling part connected to the side surface and performing a function of cooling the side surface of the ingot and a second cooling part engaging with the ingot support and performing a function of cooling the ingot lower surface by reducing the temperature of the ingot support.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an active metal ingot discharge apparatus and a method for operating the same,

More particularly, the present invention relates to an active metal ingot discharge apparatus for producing an ingot by continuously casting a molten metal formed in a crucible by a directional solidification method and an operation method thereof .

An ingot generally means that a metal or an alloy is melted once and then poured into a mold called an ingot case to be hardened. A process for continuously producing a ingot, which is a material for plastic working, by continuously supplying a metal melt and solidifying it by cooling to produce an ingot is referred to as continuous casting.

Recently, a directional solidification method has been used as a process of continuous casting. In the directional solidification method, the raw metal is filled in the crucible and melted at a high temperature, and then the solidification heat of the molten metal is removed in a predetermined direction on the upper or lower side so that the solidification is spread out from the upper portion or the lower portion of the molten metal to the opposite side Process.

Korean Patent Publication No. 10-2015-0130846 (entitled Ingot Growing Apparatus, hereinafter referred to as Prior Art 1) includes a crucible for containing a raw material and a heater for heating the crucible to melt the raw material A seed chamber disposed above the crucible; a pull chamber disposed above the dome chamber; a seed cable for moving the ingot grown from the crucible in the dome chamber and the pull chamber; And a weight measuring unit installed on the pull chamber to operate the weighing unit. The weighing unit includes a housing which is installed on the pull chamber and is kept in a vacuum state, A roller and a load cell installed outside the housing for measuring the weight of the ingot supported by the support roller The ingot growing apparatus comprising:

The above-mentioned prior art 1 has a first problem that the cooling efficiency of the ingot is reduced because no separate cooling means is provided for cooling the ingot.

Since the ingot grows from the crucible to the pull chamber, the heat of the crucible is supplied to the pull chamber, and the ingot is stretched due to the influence of the heat and the weight of the ingot itself, Therefore, it has a second problem that it is not suitable for the production of a large ingot.

The above-mentioned prior art 1 has a third problem that the quality of the ingot may be deteriorated due to vibration or the like because the ingot is moved upward by using a cable.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

According to an aspect of the present invention, there is provided an active metal ingot discharge apparatus having a function of discharging a molten metal from a crucible in a metal refining process to produce an ingot, the apparatus comprising: a draw chamber; An ingot support positioned inside the drawing chamber and receiving the metal melt from the crucible and moving up and down so that the metal melt is drawn out continuously to form an ingot; A first cooling part connected to a side surface of the drawing chamber and performing a function of cooling the side surface of the ingot; And a second cooling unit coupled to the ingot support and performing a function of cooling the bottom surface of the ingot by decreasing the temperature of the ingot support, wherein the ingot grows in one direction in the withdrawal chamber Thereby providing an activated metal ingot discharge apparatus.

In an embodiment of the present invention, the metal melt may be a titanium (Ti) melt.

In the embodiment of the present invention, the guide unit may further include a guide unit positioned inside the drawing chamber and guiding the ingot support, and a motor unit transmitting power to the guide unit.

In an embodiment of the present invention, the motor unit may include a speed reducer.

In the embodiment of the present invention, the guide portion includes a movable screw which is engaged with the motor portion and in which a male screw thread is formed, and a movable rod for maintaining the advancing direction of the ingot support rod, An acid is formed and coupled with the male thread of the movable screw, and the ingot support can be moved up and down by the rotation of the movable screw.

In the embodiment of the present invention, the motor unit may include: a high-speed motor that rotates the moving screw at a high speed to move the ingot support table up and down at a high speed; and a motor that rotates the moving screw at low speed, And a low-speed motor for moving the motor.

In an embodiment of the present invention, the cross section of the moving screw thread may be in the form of a triangle, a trapezoid, or a square.

In an embodiment of the present invention, the first cooling section may include a blower for supplying a cooling gas into the drawing chamber, and a heat exchanger for cooling the cooling gas inside the drawing chamber to supply the cooling gas to the blower have.

In an embodiment of the present invention, the cooling gas may be an inert gas of one of argon gas, helium or nitrogen.

In the embodiment of the present invention, the second cooling portion may include a cooling coil coupled to a lower surface of the ingot support and passing through the coolant, a coolant supply portion supplying coolant to the cooling coil, and a coolant supply portion connecting the coolant coil and the coolant supply portion And a cooling hose serving as a flow passage for the coolant.

In the embodiment of the present invention, the cooling hose may be wound on the winding portion during the descending movement of the ingot support, and may be unwinded by the winding portion when the ingot support is moved up.

In the embodiment of the present invention, the winding unit may include a winding motor for supplying power when the cooling hose is wound or unwound.

According to an aspect of the present invention, there is provided a method of manufacturing an ingot, comprising: i) raising the ingot support to an upper end of the draw chamber; Ii) supplying the molten metal from the crucible into the drawing chamber; Iii) the ingot is grown in one direction by the downward movement of the ingot support, and the ingot is cooled by the first cooling unit and the second cooling unit; Iv) cooling the molten metal by the first cooling unit and the second cooling unit by stopping the feeding of the molten metal and stopping the ingot support; And v) opening the drawing chamber to discharge the ingot. The present invention also provides an operation method of the active metal ingot discharging apparatus.

In the embodiment of the present invention, the ingot support lowering moving speed of step (iii) may be 1 to 10 mm / min.

In the embodiment of the present invention, the cooling temperature by the first cooling unit in the steps iii) and iv) may be 10 to 100 ° C.

In the embodiment of the present invention, the temperature of the ingot support by the second cooling unit in steps iii) and iv) may be 10 to 100 ° C.

The present invention has the first effect that the cooling efficiency of the ingot is increased by providing the first cooling section and the second cooling section for cooling the ingot.

Further, the present invention has the second effect that the ingot grows while descending from the crucible to the drawing chamber, and cooling by the cooling gas progresses during growth, thereby preventing the ingot cross-sectional area from being reduced and being suitable for producing a large ingot.

The present invention has the third effect that the quality of the ingot can be maintained because the ingot moves while minimizing the occurrence of vibration in a certain direction through the guide portion.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a front view of an active metal ingot discharge apparatus according to an embodiment of the present invention.
2 is a plan view of an active metal ingot discharge apparatus according to an embodiment of the present invention.
3 is a schematic view of a cooling coil provided on a bottom surface of an ingot support according to an embodiment of the present invention.
4 is a plan view of a winding unit according to an embodiment of the present invention.
5 is a schematic diagram of an initial operating state of an active metal ingot discharge apparatus according to an embodiment of the present invention.
FIG. 6 is a schematic diagram of an active metal ingot discharge apparatus in operation according to an embodiment of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a front view of an active metal ingot discharge apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of an active metal ingot discharge apparatus according to an embodiment of the present invention, FIG. 3 is a cross- Fig. 3 is a schematic view of a cooling coil provided on a lower surface of a cooling coil. 4 is a plan view of the winding unit according to the embodiment of the present invention.

As shown in FIGS. 1 and 2, the active metal ingot discharge apparatus of the present invention includes a draw-out chamber 10, a draw-out chamber 10, a metal melt is supplied from the crucible, And a first cooling unit connected to the side surface of the drawing chamber 10 and cooling the side surface of the ingot 20 and an ingot support table 100 connected to the ingot support table 100, And a second cooling part that functions to cool the lower surface of the ingot 20 by reducing the temperature of the ingot support 100. The ingot 20 may grow in one direction inside the drawing chamber 10 .

At this time, the metal melt may be in a semi-solid state.

The metal melt may be a titanium (Ti) melt.

In the global market, the demand for titanium (Ti) is continuously increasing, but the market for titanium (Ti) recycling is weak. Recently, there has been a demand for recycling of titanium (Ti) due to such a demand, and a technique of refining and recycling scrap or sponge made of titanium (Ti) material is attracting attention. The active metal ingot discharge apparatus of the present invention may be suitable for the process of producing the ingot 20 by refining and melting scrap or sponge made of titanium (Ti) material.

In the embodiment of the present invention, titanium (Ti) is used as the metal of the molten metal, but the present invention is not limited thereto. In a molten state such as titanium (Ti) alloy, aluminum (Al), aluminum (Al) alloy, copper (Cu), copper (Cu) alloy, iron (Fe) The metal that is the conductor may be the metal of the molten metal.

The active metal ingot discharge apparatus of the present invention includes a guide part 200 positioned inside the drawing chamber 10 and serving to guide the ingot support 100 and a motor part 500 for transmitting power to the guide part 200 ). ≪ / RTI >

The guide unit 200 may include a movable screw 210 coupled with the motor unit 500 and formed with a male screw thread and a movable rod 220 for maintaining the linear movement direction of the ingot support 100, The ingot support table 100 is formed with a female screw mountain so that it can engage with the male threads of the movement screw 210 and the ingot support 100 can be moved up and down by the rotation of the movement screw 210.

The cross section of the mobile screw 210 thread may be in the form of a triangle, a trapezoid, or a square.

(The screw thread of the moving screw is omitted in Fig. 1).

In this case, at least one mobile screw 210 may be installed, and when at least one mobile screw 210 is installed, the motor unit 500 may be installed for each mobile screw 210, By the belt coupling, one motor unit 500 can supply rotational power to the plurality of movable screws 210. [

The movable screw 210 provides power to the up and down movement of the ingot support 100 and the movable movable bar 220 having at least one of the functions provides a function of maintaining the movement of the ingot support 100 in the straight direction Can be performed. At this time, the cross-section of the movable bar 220 may be circular or a polygonal shape such as a square, a hexagon, an octagon, or the like, and may be circular.

The motor unit 500 may include a speed reducer 520.

The motor unit 500 may include a driving motor 510 for generating power and a speed reducer 520 for reducing the speed of the driving motor 510.

The motor unit 500 rotates the high speed motor and the moving screw 210 that rotate the moving screw 210 at a high speed to move the ingot support 100 up and down at a low speed to rotate the ingot support 100 at a low speed And a low-speed motor for moving the motor.

The motor unit 500 may have a high speed and a low speed function, or may include a high speed motor and a low speed motor as described above. When the ingot support 100 is set in a fixed position, the ingot support 100 can be moved up and down at a high speed by the motor unit 500. When the ingot support 100 receives the molten metal and grows the ingot 20, the ingot support 100 can be moved up and down by the motor unit 500 at low speed. At this time, the velocity of the ingot support platform 100 at a low speed may be 1 to 5 mm / min.

When the motor unit 500 includes a high-speed motor and a low-speed motor, an electromagnetic clutch is provided in the motor unit 500 so that the connection of the high-speed motor or the low- When the high speed motor is operated, a screw connects the moving screw 210 and the high speed motor to move the ingot support 100 at a high speed. When the low speed motor is operated, the screw moves the moving screw 210 The ingot support 100 can be moved at a low speed by connecting the low speed motor. At this time, a rotation speed sensor is attached to the motor unit 500, and the moving distance of the ingot support 100 can be converted and displayed by the rotation speed of the high-speed motor or the low-speed motor.

As shown in FIG. 1, a vacuum fluid chamber 530 may be installed at a connection portion between the mobile screw 210 and the motor unit 500. The vacuum fluid chamber 530 can maintain the connection portion at atmospheric pressure when the connection portion between the mobile screw 210 and the motor portion 500 rotates at a high speed.

The first cooling unit includes a blower 310 for supplying a cooling gas into the drawing chamber 10 and a heat exchanger 320 for cooling the cooling gas in the drawing chamber 10 to supply the cooling gas to the blower 310. [ . ≪ / RTI >

At this time, the blower 310 may be installed at a side upper end of the drawing chamber 10, and the heat exchanger 320 may be installed at a side lower side of the drawer chamber 10. Accordingly, the cooling gas is ejected from the blower 310 to cool the ingot 20, then descend and be sucked into the heat exchanger 320. Here, the blower 310 is provided with a blower pump to move the low-temperature cooling gas from the heat exchanger 320 to the blower 310. The heat exchanger 320 is equipped with a heat exchanger pump, The cooling gas can be moved from the inside to the heat exchanger 320.

The cooling gas may be an inert gas of one of argon gas, helium or nitrogen.

When the cooling gas is introduced into the drawing chamber 10 to form an atmosphere of an inert gas, oxidation of the ingot 20 during cooling can be prevented.

In the embodiment of the present invention, argon gas, helium or nitrogen is used as the cooling gas. However, the present invention is not limited thereto, and other inert gases may be used.

The second cooling part is connected to the lower surface of the ingot support table 100 and includes a cooling coil 410 through which the coolant passes, a coolant supply part 430 for supplying the coolant to the cooling coil 410, And a cooling hose 420 connecting the coolant passage 430 and the coolant flow path.

As shown in FIG. 3, the cooling coil 410 is formed in a spiral shape so that the coolant can flow and the cooling surface area can be maximized, and the cooling coil 410 is formed into a spiral shape so as to be in close contact with the lower surface of the ingot support table 100 Can be installed.

The cooling hose 420 may be formed of a flexible material having a low thermal conductivity. The cooling hose 420 may be a generally used cooling hose 420 for a cold gas.

4, the cooling hose 420 is wound on the winding unit 440 in the descending movement of the ingot support 100 and is wound on the winding unit 440 in the ascending movement of the ingot support 100 .

The winding section 440 may include a winding motor 443 for supplying power when the cooling hose 420 is wound or unwound.

3 and 4, the arrow a indicates the direction in which the coolant moves from the coolant supply part 430 to the cooling coil 410 and the arrow b indicates the direction in which the coolant moves from the cooling coil 410 to the coolant supply part 430 Direction can be displayed.

The winding section 440 may include a winding motor 443, a first winding rotation section 441 and a second winding rotation section 442. The first winding rotation section 441, The second take-up rotation unit 442 may have a function of rotating at different speeds. In order to wind the cooling hose 420 at a different speed between the first take-up rotating portion 441 and the second take-up rotating portion 442, the take-up portion 440 has a first take-up rotating portion 441 and a second take- A speed sensor and a control device may be provided.

The length of the cooling hose 420 from the winding section 440 to the coolant supply section 430 is longer than the length from the winding section 440 to the cooling coil 410 with respect to the winding section 440, May have the same length. As a result, when the cooling hose 420 is wound around the winding portion 440, the same amount of winding can be performed for both lengths, and winding on the cooling hose 420 can be released from the winding portion 440 It is possible to control the length of the cooling hose 420 in accordance with the upward and downward movement of the ingot support 100 without moving the separate coolant supply part 430 .

The length of the cooling hose 420 can be adjusted while the twist of the cooling hose 420 is prevented even when the ingot support table 100 is moved up and down by the operation of the winding unit 440 as described above.

In FIG. 4, although the number of times of winding is small for easy understanding, it is possible to wind a plurality of times.

FIG. 5 is a schematic view showing an initial operation state of an active metal ingot discharge apparatus according to an embodiment of the present invention, and FIG. 6 is a schematic diagram of an active metal ingot discharge apparatus in operation according to an embodiment of the present invention.

Hereinafter, an operation method of the activated metal ingot discharge apparatus of the present invention will be described with reference to FIGS. 5 and 6. FIG.

In the first step, the ingot support 100 may move up to the top of the draw chamber 10. [

Since the molten metal serving as the material of the ingot 20 is supplied from the crucible located at the top upper side of the drawing chamber 10, the ingot 20 in the initial stage of the ingot 20 is formed of metal And can move upward to the top of the drawing chamber 10 to receive and receive the molten metal.

In the second step, the molten metal may be supplied into the drawing chamber 10 from the crucible.

At this time, cooling gas is supplied from the blower 310 into the drawing chamber 10, and a cooling atmosphere is formed inside the drawing chamber 10, and then the metal melting body can be supplied.

In the third step, the ingot 20 is grown in one direction by the downward movement of the ingot support 100, and the ingot 20 can be cooled by the first cooling portion and the second cooling portion.

The temperature of the ingot chamber 10 and the temperature of the ingot support 100 are controlled by controlling the amount of coolant supplied by the first cooling unit or the coolant by the second cooling unit so that the cooling rate of the ingot 20 So that the properties of the metal structure of the ingot 20 can be controlled.

In the fourth stage, supply of the molten metal is stopped, and the ingot support 100 is stopped, and can be cooled by the first cooling unit and the second cooling unit.

At this time, the supply of the molten metal is stopped before the ingot support 100 stops, and when the descending movement of the ingot support 100 is completed, the connection between the molten metal from the crucible and the ingot 20 being grown Can be cut.

In the fifth step, the drawing chamber 10 can be opened to discharge the ingot 20.

The drawing chamber 10 has a function of opening and closing so that the drawing chamber 10 is closed to process the ingot 20 in the process of growing and cooling the ingot 20 and the ingot 20 is completed In the case of discharging, the drawing chamber 10 can be opened to discharge the ingot 20 to the outside. When the drawing chamber 10 is closed and the process proceeds, it can be completely closed by the rubber packing so that the cooling gas does not flow out.

The descending movement speed of the ingot support 100 in the third stage may be 1 to 10 mm / min.

If the descending movement speed of the ingot support 100 is less than 1 mm / min, the production speed of the ingot 20 may be reduced. If the descending speed of the ingot support 100 is more than 10 mm / min, it is necessary to adjust the descending speed according to the solidification temperature of the molten metal. If the ingot 20 grows faster than the cooling speed, Since the molten ingot 20 is deformed by its own weight, the quality of the ingot 20 may be deteriorated.

The cooling temperature by the first cooling unit in the third and fourth stages may be 10 to 100 ° C.

If the cooling temperature by the first cooling section is less than 10 deg. C, the brittleness of the ingot 20 is increased and the moldability of the ingot 20 may be deteriorated. If the cooling temperature by the first cooling section is higher than 100 deg. C, the cooling rate of the ingot 20 is reduced at present, and the production rate of the ingot 20 may be lowered.

In the third and fourth stages, the temperature of the ingot support 100 by the second cooling part may be 10 to 100 ° C.

When the temperature of the ingot support table 100 by the second cooling section is lower than 10 DEG C, the cooling of the contact surface between the ingot 20 and the ingot support table 100 rapidly progresses and the ingot 20 ) May be damaged. If the temperature of the ingot support table 100 by the second cooling section is higher than 100 DEG C, the ingot support table 100 is in contact with the ingot support 100 in a state where the end of the ingot 20 is not cured, 20 so that the distal end of the ingot 20 can be deformed. As a result, the growth direction of the ingot 20 is inclined with respect to the straightening direction, thereby obstructing the growth of the ingot 20.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: draw chamber
20: Ingots
100: ingot support
200: guide portion
210: Movable screw
220: Movable bar
310: Blower
320: heat exchanger
410: cooling coil
420: Cooling hose
430: coolant supply
440:
441: first winding rotation part
442: second winding rotation part
443: Winding motor
500: motor section
510: drive motor
520: Reducer
530: Vacuum fluid chamber

Claims (16)

An active metal ingot discharge apparatus having a function of discharging a molten metal from a crucible in a metal refining step to produce an ingot,
A drawing chamber for receiving the metal melt from the crucible outside;
An ingot support positioned inside the draw chamber and receiving the metal melt from the crucible located at an upper end of the draw chamber and moving up and down so that the metal melt is continuously drawn to form an ingot;
A first cooling unit connected to a side surface of the drawing chamber and cooling the side surface of the ingot by injecting a cooling gas into the drawing chamber;
A second cooling unit coupled to the ingot support and functioning to cool the lower surface of the ingot by reducing the temperature of the ingot support; And
A motor having a high-speed motor for transmitting power to the guide portion and rotating the moving screw at high speed to move the ingot support vertically at high speed, and a low-speed motor for rotating the moving screw at low speed to move the ingot support vertically at low speed part;
A guide provided in the drawing chamber and having a function of guiding the ingot support, a movable screw coupled with the motor and formed with a male thread, and a movable rod for maintaining the advancing direction of the ingot support, part;
, ≪ / RTI >
The ingot grows in one direction inside the drawing chamber,
When the ingot support table is moved up and down at a high speed by the motor unit when the ingot support table is set in a fixed position and the ingot is grown by the ingot support table being supplied with the metal melt, Moving up and down at low speed,
Wherein the motor unit is provided with an electromagnetic clutch and the connection of the moving screw to the high-speed motor or the low-speed motor is operated by a single screw by means of the electromagnetic clutch, And the screw connects the moving screw and the low speed motor when the low speed motor operates.
The method according to claim 1,
Wherein the metal molten metal is a titanium (Ti) molten metal.
delete The method according to claim 1,
Wherein the motor unit includes a speed reducer.
The method according to claim 1,
Wherein the ingot support is formed with a female screw and engages with a male thread of the movable screw, and the ingot support is moved up and down by rotation of the movable screw.
delete The method according to claim 1,
Wherein the movable screw thread has a shape of one of a triangle, a trapezoid, or a square.
The method according to claim 1,
Wherein the first cooling unit comprises:
A blower for supplying a cooling gas into the drawing chamber,
A heat exchanger for cooling the cooling gas in the drawing chamber and supplying the cooling gas to the blower,
Wherein the active metal ingot discharge device comprises:
The method of claim 8,
Characterized in that the cooling gas is one of an inert gas of argon gas, helium or nitrogen.
The method according to claim 1,
The second cooling unit,
A cooling coil coupled to a lower surface of the ingot support and through which the coolant passes,
A coolant supply part for supplying a coolant to the cooling coil, and
A cooling hose connecting the cooling coil and the coolant supply unit,
Wherein the active metal ingot discharge device comprises:
The method of claim 10,
Wherein the cooling hose is wound on a winding part when the ingot support is moved downward and is wound off on a winding part when the ingot support is moved up.
The method of claim 11,
Wherein the winding unit includes a winding motor that supplies power when the cooling hose is wound or unwound.
A method of operating an active metal ingot discharge apparatus according to claim 1,
I) the ingot support elevating up to the top of the withdrawal chamber;
Ii) supplying the molten metal from the crucible into the drawing chamber;
Iii) the ingot is grown in one direction by the downward movement of the ingot support, and the ingot is cooled by the first cooling unit and the second cooling unit;
Iv) cooling the molten metal by the first cooling unit and the second cooling unit by stopping the feeding of the molten metal and stopping the ingot support; And
V) opening the drawing chamber to discharge the ingot;
Wherein the first and second scavenging operations are performed in the same manner as in the first embodiment.
14. The method of claim 13,
Wherein the ingot support lowering moving speed of step (iii) is 1 to 10 mm / min.
14. The method of claim 13,
Wherein the cooling temperature by the first cooling unit in steps (iii) and (iv) is 10 to 100 ° C.
14. The method of claim 13,
Wherein the temperature of the ingot support by the second cooling part in the steps iii) and iv) is 10 to 100 ° C.
KR1020150174710A 2015-12-09 2015-12-09 An apparatus for discharging ingot and a method for operating the same KR101767173B1 (en)

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KR101767173B1 true KR101767173B1 (en) 2017-08-23

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