WO2018088753A1 - Équipement de coulée et procédé de coulée l'utilisant - Google Patents

Équipement de coulée et procédé de coulée l'utilisant Download PDF

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Publication number
WO2018088753A1
WO2018088753A1 PCT/KR2017/012308 KR2017012308W WO2018088753A1 WO 2018088753 A1 WO2018088753 A1 WO 2018088753A1 KR 2017012308 W KR2017012308 W KR 2017012308W WO 2018088753 A1 WO2018088753 A1 WO 2018088753A1
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WO
WIPO (PCT)
Prior art keywords
molten steel
tundish
vacuum
casting
cover member
Prior art date
Application number
PCT/KR2017/012308
Other languages
English (en)
Korean (ko)
Inventor
한승민
최주한
한상우
김장훈
조현진
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to JP2019524157A priority Critical patent/JP2019535524A/ja
Priority to US16/348,327 priority patent/US20190262895A1/en
Priority to CN201780069185.3A priority patent/CN109922905A/zh
Priority to EP17870275.9A priority patent/EP3539689A4/fr
Publication of WO2018088753A1 publication Critical patent/WO2018088753A1/fr

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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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
    • 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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/113—Treating the molten metal by vacuum treating
    • 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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/114—Treating the molten metal by using agitating or vibrating means
    • 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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/116—Refining the metal
    • B22D11/117—Refining the metal by treating with gases
    • 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
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/116—Refining the metal
    • B22D11/118—Refining the metal by circulating the metal under, over or around weirs
    • 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • 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
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • 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

Definitions

  • the present invention relates to a casting facility and a casting method using the same, and more particularly, to a casting facility and a casting method using the same that can effectively remove the inclusions in the molten steel, the reoxidation of the molten steel.
  • Continuous casting equipment is a facility for manufacturing cast steel by receiving refined molten steel from steelmaking equipment.
  • Continuous casting equipment includes ladles that carry molten steel, tundish for temporary storage of molten steel from ladles, and primary solidification of slats with continuous molten steel from tundish.
  • the mold consists of a mold and a cooling stand that performs a series of molding operations while secondarily cooling the castings continuously drawn from the mold.
  • Molten steel is taken in a tundish and stays for a predetermined time, the inclusions are separated, the slag is stabilized, and reoxidation is prevented.
  • the molten steel is then fed into the mold to form an initial solidification layer in the shape of the cast, wherein the surface quality of the cast is determined.
  • the quality of the slab surface in the mold is determined by the cleanliness of the inclusions in the molten steel. For example, when the cleanliness of molten steel for inclusions is not good, defects may occur on the surface of the cast steel due to the inclusion itself, the immersion nozzle may be blocked by the inclusions, and abnormality may occur in the molten steel flow, thereby lowering the surface quality of the cast steel.
  • Molten steel has a substantial degree of cleanliness of the inclusion depending on the degree of separation of the inclusions while the molten steel stays in the tundish for a predetermined time, and the degree of separation of the inclusions is proportional to the time spent in the molten steel tundish.
  • a dam or weir was built in the tundish to control the flow of the molten steel to adjust the dwell time of the molten steel in order to increase the molten steel residence time in the tundish.
  • the size of inclusions mixed in the molten steel is 30 ⁇ m or less, the time taken for the inclusions to be separated and separated is longer than the residence time of the molten steel. For this reason, the inclusions having a size of 30 ⁇ m or less are removed by using a dam and weir. There is a problem that is difficult to do.
  • the present invention provides a casting facility and a casting method using the same that can effectively remove the inclusions in the molten steel to suppress the clogging of the nozzle during casting.
  • the present invention provides a casting facility and a casting method using the same to suppress the reoxidation of molten steel to secure cleanliness.
  • Casting equipment according to an embodiment of the present invention, the casting equipment, the cover member is installed on the tundish to form a space on at least a portion of the upper surface of the molten steel accommodated in the tundish;
  • a vacuum pump connected to the cover member to form a vacuum in the space part;
  • a control unit controlling an operation of the vacuum pump.
  • the cover member may include a vertical portion formed in a hollow shape in which upper and lower portions are opened, and provided in a vertical direction such that at least a portion thereof is immersed in the molten steel; And a horizontal portion connected to an upper portion of the vertical portion to form a space portion between the vertical portion and an exhaust port formed at the horizontal portion to be connected to the vacuum pump.
  • the horizontal portion may be formed to cover only the upper portion of the vertical portion.
  • the horizontal portion may be formed to be seated on the tundish.
  • the tundish is provided with a structure crossing the inside of the tundish spaced apart from the bottom surface of the tundish to form a flow of molten steel, spaced apart from the bottom surface of the tundish the structure on both sides of the structure It may be provided with an induction member disposed in parallel with the.
  • the upper surface of the guide member may be provided at a position higher than the height of the upper surface of the structure.
  • a nozzle is provided to supply gas to the tundish, and the nozzle may be provided at one side of the structure between the guide members.
  • In the space portion may include a detection means for measuring the water level of the molten steel.
  • the detecting means may include at least one of a distance sensor and a temperature sensor.
  • Casting method the casting method, the process of preparing a tundish; Injecting molten steel into the tundish; Installing a vacuum forming member on the upper portion of the tundish to form a vacuum in at least a portion of the upper portion of the molten steel bath surface accommodated in the tundish; Blowing gas into the molten steel to form a rotary flow; And forming a vacuum in at least a portion of the upper surface of the molten steel.
  • an induction member defining a region for forming a vacuum is formed, and the induction member is spaced apart from the bottom of the tundish and traverses the inside of the tundish. It can be formed alongside the structure.
  • the process of installing the vacuum forming member may include installing a cover member between the induction members; Immersing at least a portion of the cover member in the molten steel to form a space portion spaced apart from the molten steel surface of the cover member; And connecting a vacuum pump to the cover member.
  • the process of forming the rotary flow may include a process of blowing a gas to one side of the structure.
  • the forming of the vacuum may include sucking the space part by operating the vacuum pump.
  • the process of forming the vacuum may be performed when at least a portion of the cover member is immersed in the molten steel.
  • the forming of the vacuum may include measuring fluctuations in the surface level of molten steel in the space part, and adjusting the degree of vacuum in the space part according to fluctuations in the level of the molten steel.
  • the casting facility and the casting method using the same by forming a continuous rotational flow in the molten steel irrespective of the change in the water surface of the molten steel can remove the inclusions in the molten steel efficiently. That is, by forming a space in at least a part of the upper surface of the molten steel accommodated in the tundish, and sucking the inside of the space to form a vacuum, the molten steel may be kept constant at all times.
  • the gas injected to form the rotational flow is discharged to the outside through the space in which the vacuum is formed, it is possible to prevent the molten steel generated by the gas discharge from contacting the atmosphere, thereby suppressing or preventing the reoxidation of molten steel.
  • the cleanliness of the molten steel can be maintained to suppress or prevent nozzle clogging or cast defects that may occur during casting.
  • FIG. 1 is a view schematically showing a casting facility according to an embodiment of the present invention.
  • FIG. 2 is a view showing a main configuration of a casting facility according to an embodiment of the present invention.
  • FIG 3 is a view showing an example of a vacuum forming member applied to a casting facility according to an embodiment of the present invention.
  • Figure 4 is a view showing a modification of the vacuum forming member applied to the casting facility according to an embodiment of the present invention.
  • FIG. 5 is a view showing an example in which a detection means for measuring the molten steel water level is installed in the casting facility according to an embodiment of the present invention.
  • FIG. 6 is a view showing a state of forming a rotary flow in the molten steel when casting using a casting facility according to an embodiment of the present invention.
  • FIG. 1 is a view schematically showing a casting facility according to an embodiment of the present invention
  • Figure 2 is a view showing the main configuration of the casting facility according to an embodiment of the present invention
  • Figure 3 is a casting according to an embodiment of the present invention 4 is a view showing an example of a vacuum forming member applied to the installation
  • Figure 4 is a view showing a modification of the vacuum forming member applied to the casting installation according to an embodiment of the present invention
  • Figure 5 is an embodiment of the present invention
  • the drawing shows an example in which a detection means for measuring the molten steel water level is installed in the casting facility according to the present invention.
  • a casting facility for example, a continuous casting facility includes a tundish, which serves to store and distribute molten steel M supplied from a ladle 10, which is a vessel containing refined molten steel. 20), a stopper (not shown) or sliding plate (not shown) for controlling the flow rate of the molten steel (M), the immersion nozzle 32 and molten steel for supplying the molten steel (M) in the tundish (20) to the mold (30) It may include a mold 30 to solidify (M) to make a cast (S). In addition, a cooling line 50 for cooling the slab S may be provided below the mold 30.
  • the tundish 20 may be formed in a hollow shape in which an upper portion of the tundish 20 is opened and a tap hole 21 through which molten steel is discharged.
  • Various structures may be provided inside the tundish 20 to form a flow of molten steel.
  • Such a structure may include a dam 23, a weir 24, and an eddy current prevention dam (not shown).
  • the dam 23 may be formed to protrude upward from the bottom of the tundish 20.
  • the weir 24 is provided spaced apart from the bottom of the tundish 20 and at a position higher than the level of the molten steel and higher than the height of the dam 23, across the inside of the tundish 20 on the side wall of the tundish 20.
  • the vortex prevention dam is provided on the outlet 21 side in the lower portion of the tundish 20 can suppress the generation of vortex in order to prevent the slag from flowing into the mold (30).
  • the dam 23 and the weir 24 may be spaced apart from each other, and may form a passage used by the molten steel between the dam 23 and the weir 24.
  • One tap 21 may be provided at each side in the longitudinal direction of the tundish 20, and a shroud nozzle 12 is disposed at the center in the longitudinal direction of the tundish 20 and accommodated in the ladle 10. Molten steel may be injected into the tundish 20.
  • the molten steel injected from the shroud nozzle 12 may be discharged to the tap hole 21 while moving the passage formed by the weir 24 and the dam 23 in the tundish 20.
  • the flow of molten steel in the tundish 20 to increase the residence time of the molten steel in the tundish 20 it is possible to capture the inclusions in the molten steel to the slag (S) of the upper molten steel.
  • the molten steel injected from the shroud nozzle 12 forms a flow simply passing through the passage formed by the weir 24 and the dam 23, so that the inclusions in the molten steel are sufficiently filled.
  • the nozzle 26 may be installed below the tundish 20, and gas, for example, an inert gas, may be blown into the tundish 20 to form a rotary flow of molten steel in the tundish 20.
  • the nozzle 26 may be formed at one side of the weir 24, for example, adjacent to the shroud nozzle 12.
  • the molten steel can further increase the residence time of the molten steel in the tundish 20 by forming a rotary flow to move around the weir 24 by the gas supplied from the nozzle 26.
  • a vacuum forming member 100 capable of forming a vacuum in at least a portion of the tundish 20 to continuously generate a rotational flow irrespective of fluctuations in the water level of the molten steel to efficiently generate inclusions in the molten steel. It can be removed, and the reoxidation that can occur by molten steel in contact with the atmosphere can be suppressed.
  • the tundish 20 may be provided with an induction member 25 defining a region for maintaining a constant level of the molten steel, that is, a region in which rotational flow is formed.
  • the tundish 20 may be difficult to maintain the vacuum state when the molten steel level is lower than the upper portion of the weir 24.
  • the vacuum may be formed using the vacuum forming member 100, but when the level of the molten steel is lower than the upper portion of the weir 24, the vacuum forming member may be formed.
  • a space may be formed between the 100 and the molten steel bath surface to release the vacuum.
  • Induction member 25 is provided to traverse the inside of the tundish 20 is spaced from the bottom of the tundish 20, may be provided to be spaced apart from the weir 24 on both sides of the weir 24. have.
  • the guide member 25 may be formed on the upper side where the nozzle 26 is formed so that the rotational flow of molten steel can be formed therebetween.
  • the weir 24 may be disposed between the induction members 25, and the molten steel moves along the weirs 26 between the induction members 25 by the gas supplied through the nozzle 26, thereby forming a rotational flow. Can be.
  • the guide member 25a may be formed on at least one side of the guide member 25 so that the rotational flow of molten steel can be smoothly generated.
  • the guide member 25a may form an inclined surface on one side of the guide member 25 to control the moving direction of the molten steel.
  • the inclined surface 25a is formed on the induction member 25 provided on one side of the weir 24 in which the downflow is formed, the induction member 25 provided on the other side of the weir 24 in which the upflow is formed.
  • An inclined surface may also be formed.
  • the direction of the inclined surface formed on the side on which the upflow is formed and the side on which the downflow is formed may be different.
  • the lower portion of the guide member 25 may be disposed at a lower position than the upper portion of the weir 24, and the upper portion of the guide member 25 may be disposed at a position higher than the upper portion of the weir 24. Accordingly, even when the molten steel level of the molten steel decreases as in the ladle replacement, the molten steel can smoothly generate the rotational flow while maintaining the higher surface level than the upper portion of the weir 24 between the guide members 25.
  • the vacuum forming member 100 includes a cover member 110 that forms a space portion a in at least a portion of the tundish 20, and a cover member so as to suck the inside of the cover member 110. It may include a vacuum pump 120 connected to 110.
  • the control unit 130 for controlling the operation of the vacuum pump 120 according to the detection means 130 for measuring the molten metal level of the molten steel in the cover member 110 and the molten steel level measured by the detection means 130 ( Not shown).
  • the cover member 110 may be disposed along the width direction of the tundish 20, and may be formed in a hollow shape in which the lower part is open and the exhaust port 114 is formed in the upper part.
  • the cover member 110 may include a vertical portion 111 extending in the vertical direction and a horizontal portion 112 connected to an upper portion of the vertical portion 111.
  • the exhaust port 114 may be formed in the horizontal portion 112, it may be connected to the vacuum pump 120 is connected to a separate exhaust pipe.
  • the vertical portion 111 may be inserted between the guide members 25 so that the lower portion thereof may be immersed in the molten steel, and the space portion a is formed at the upper side of the molten steel in the cover member 110 in the state immersed in the molten steel. It can be formed to a length that can be.
  • the cover member 110 may form at least a portion, for example, a lower portion of the tundish 20 in the molten steel to form a space a therein.
  • the horizontal portion 112 may connect the upper portion of the vertical portion 111 to form a space portion (a) between the horizontal portion 112 and the vertical portion 111.
  • the horizontal part 112 may be formed to have an area corresponding to the area size formed inside the vertical part 111 to cover only the upper part of the vertical part 111, but as shown in FIG. 4, the cover member 110a. ) May be formed to cover the top of the tundish 20.
  • the horizontal portion 112a is formed to be seated on the top of the tundish 20, that is, to cover the top of the tundish 20, and the vertical portion 111a extends in a vertical direction to a lower portion of the horizontal portion 112a. It may be provided to be.
  • the cover member 110 may be provided with a detection means 130 for measuring the level of the molten steel in the space (a).
  • the detection means 130 may be provided in the horizontal portion 112, as shown in Figure 5 (a) may be used a distance sensor 130a for measuring the distance from the horizontal portion to the molten steel.
  • the detection means 130 may be provided in the vertical portion 111 immersed in the molten steel as shown in (b) of FIG. 5 may be used a temperature sensor 130b for measuring the temperature of the molten steel.
  • the vacuum pump 120 may be connected to the cover member 110 to suck the space a inside the cover member 110 to form a vacuum in the space a. Accordingly, the pressure inside the cover member 110, that is, the space portion a, is lower than the ambient pressure, so that the molten steel level of the molten steel inside the cover member 110 becomes higher than the molten steel surface level of the periphery, that is, the outside of the cover member 110.
  • the controller may control the operation of the vacuum pump 120 according to the molten steel level of the molten steel by receiving the result measured by the detecting unit 130, thereby uniformly adjusting the molten steel level in the space part a.
  • the rotational flow is smoothly formed by the gas blown through the nozzle 26, but the supply of molten steel for the ladle 10 replacement is If temporarily stopped, the molten steel level of the molten steel in the tundish 20 may be lowered. Accordingly, by controlling the operation of the vacuum pump 120 according to the fluctuation of the molten steel level inside the cover member 110, the pressure of the space part a is adjusted appropriately to increase the molten steel level inside the cover member 110. You can keep it constant.
  • FIG. 6 is a view showing a state of forming a rotary flow in the molten steel when casting using a casting facility according to an embodiment of the present invention.
  • the molten steel that has been refined is charged into the ladle 10, and the ladle 10 is moved to a continuous casting facility and seated on the ladle turret.
  • the nozzle unit (not shown) including the shroud nozzle 12 is connected to the tap hole under the ladle 10.
  • the vacuum forming member 100 is installed on the tundish 20 and the molten steel is injected into the tundish 20 by opening the outlet of the lower part of the ladle 10.
  • gas is injected into the molten steel through the nozzle 26.
  • the gas blown into the tundish 20 may include an inert gas such as argon (Ar).
  • Ar argon
  • Rotating flow of the molten steel may be formed between the guide member 25, the upstream is formed on one side of the weir 24, the nozzle 26 is provided, and the downstream may be formed on the other side of the weir 24. . Then, the molten steel exits to the space formed between the induction member 25 and the dam 23 on the other side of the weir 24 and moves to the tap hole 21 side of the tundish 20.
  • the lower part of the cover member 110 installed in the tundish 20 that is, a part of the vertical part 111 is immersed in the molten steel, thereby covering the cover member ( 110, the space portion (a) may be formed on the upper surface of the molten steel.
  • the controller may operate the vacuum pump 120 to suck the inside of the cover member 110 to form a vacuum. have. At this time, if the cover member 110 is sucked into the cover member 110 by the vacuum pump 120 before the vertical portion 111 is immersed, the air may flow into the tundish 20, so that the vertical portion 111 of the cover member 110 is formed. After being immersed in the molten steel, the inside of the cover member 110 may be sucked to form a vacuum.
  • Whether the vertical portion 111 is immersed in the molten steel can be measured through the detection means 130.
  • the distance sensor 130a is used as the detecting means 130 as shown in FIG. 5A
  • the vertical part is measured by measuring the distance from the distance sensor 130a to the molten steel bath surface inside the cover member 110. It is possible to determine whether or not 111 is immersed. That is, when the result measured by the distance sensor 130a is transmitted to the controller, the controller compares the distance to the molten steel surface measured by the distance sensor 130a and the predetermined distance measured distance to each other to determine whether the vertical part 111 is immersed. Can be determined.
  • a plurality of temperature sensors 130b installed in the longitudinal direction of the vertical portion 111 to the vertical portion 111 It is possible to determine whether the vertical portion 111 is immersed by detecting the temperature change of the vertical portion 111 immersed in the molten steel using the ().
  • the cast steel can be cast by injecting molten steel into the mold 30 through the immersion nozzle 32 connected to communicate with the tap hole 21 at the lower portion of the tundish 20 by opening the tap hole 21.
  • the gas While casting the cast steel, the gas is continuously injected into the tundish 20 to form a rotary flow of molten steel, and the vacuum may be sucked into the cover member 110 through the vacuum pump 120 to maintain a vacuum state. Rotational flow may be continuously formed in the tundish 20 during casting thereto. In addition, since the gas generating the rotational flow is discharged to the region where the vacuum is formed, the molten steel can be prevented from contacting the atmosphere.
  • the molten steel supply to the tundish 20 may be temporarily stopped while the ladle is replaced.
  • the molten steel level of the molten steel in the tundish 20 is reduced.
  • the inside of the cover member 110 may be more strongly sucked using the vacuum pump 120 to adjust the degree of internal vacuum formation. That is, when the molten steel level of the molten steel in the tundish 20 is lowered, the molten steel molten metal level in the cover member 110 may be lowered correspondingly.
  • the degree of vacuum formation is stronger than before the level of the molten steel is lowered.
  • the molten steel level of the molten steel in the cover member 110 can be kept constant.
  • the level of the molten steel can be kept constant between the guide members 25, it is possible to continuously form the rotational flow of the molten steel regardless of the level of fluctuations in the level of the molten steel.
  • Casting facilities according to the present invention and the casting method using the same it is possible to effectively remove the inclusions in the molten steel to maintain the cleanliness of the molten steel can suppress or prevent nozzle clogging or cast defects that may occur during casting, through which process efficiency And productivity can be improved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)

Abstract

La présente invention concerne un équipement de coulée et un procédé de coulée l'utilisant, le procédé de coulée comprenant les étapes consistant : à fournir un panier de coulée ; à verser de l'acier fondu dans le panier de coulée ; à installer, dans la partie supérieure du panier de coulée, un élément de formation de vide pour produire un vide dans au moins une partie de la région au-dessus du ménisque d'acier fondu présent dans le panier de coulée ; à souffler un gaz dans l'acier fondu pour former un écoulement tourbillonnant ; et à produire un vide dans au moins une partie de la région au-dessus du ménisque d'acier fondu. Plus spécifiquement, la présente invention peut ainsi éliminer efficacement des inclusions dans de l'acier fondu et empêcher la réoxydation de l'acier fondu.
PCT/KR2017/012308 2016-11-09 2017-11-02 Équipement de coulée et procédé de coulée l'utilisant WO2018088753A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2019524157A JP2019535524A (ja) 2016-11-09 2017-11-02 鋳造設備及びこれを用いた鋳造方法
US16/348,327 US20190262895A1 (en) 2016-11-09 2017-11-02 Casting equipment and casting method using same
CN201780069185.3A CN109922905A (zh) 2016-11-09 2017-11-02 铸造设备和使用该铸造设备的铸造方法
EP17870275.9A EP3539689A4 (fr) 2016-11-09 2017-11-02 Équipement de coulée et procédé de coulée l'utilisant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0148865 2016-11-09
KR1020160148865A KR101881971B1 (ko) 2016-11-09 2016-11-09 주조설비 및 이를 이용한 주조방법

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WO2018088753A1 true WO2018088753A1 (fr) 2018-05-17

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PCT/KR2017/012308 WO2018088753A1 (fr) 2016-11-09 2017-11-02 Équipement de coulée et procédé de coulée l'utilisant

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US (1) US20190262895A1 (fr)
EP (1) EP3539689A4 (fr)
JP (1) JP2019535524A (fr)
KR (1) KR101881971B1 (fr)
CN (1) CN109922905A (fr)
WO (1) WO2018088753A1 (fr)

Citations (7)

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JP2003119515A (ja) * 2001-10-10 2003-04-23 Sumitomo Metal Ind Ltd 溶融金属の精錬方法
JP3654181B2 (ja) 2000-12-20 2005-06-02 住友金属工業株式会社 溶融金属の精錬方法
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EP3539689A4 (fr) 2020-01-22
EP3539689A1 (fr) 2019-09-18
KR20180051917A (ko) 2018-05-17

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