WO2019088771A1 - Continuous casting and rolling apparatus and continuous casting and rolling method - Google Patents
Continuous casting and rolling apparatus and continuous casting and rolling method Download PDFInfo
- Publication number
- WO2019088771A1 WO2019088771A1 PCT/KR2018/013277 KR2018013277W WO2019088771A1 WO 2019088771 A1 WO2019088771 A1 WO 2019088771A1 KR 2018013277 W KR2018013277 W KR 2018013277W WO 2019088771 A1 WO2019088771 A1 WO 2019088771A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- path
- rolling
- tunnel
- main
- slab
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/1213—Accessories for subsequent treating or working cast stock in situ for heating or insulating strands
-
- 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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
Definitions
- the present invention relates to a performance rolling apparatus and a performance rolling method.
- a layout is formed so that the cut slabs produced through the continuous casting process can be rolled immediately without cooling.
- a tunnel furnace is installed as a space serving as a buffer between the player and the rolling mill.
- tunnels serve as a space for connecting two castors and one rolling mill, and are used as a buffer space when a certain period of time is required due to the replacement of a rolling mill roll, etc., and slabs and other slabs
- a heater such as a gas heating system or an induction heating system is installed to compensate the drop temperature.
- the player may not be operated, or the rolling capacity of the rolling mill may be wasted depending on the casting production speed of the casting machine.
- An object of the present invention is to provide a performance rolling apparatus and a performance rolling method which prevent the problem of a decrease in the yield rate of the cast steel while compensating for a decrease in the temperature of the cast steel during an abnormal operation.
- Another aspect of the present invention is to provide a performance rolling apparatus and a performance rolling method in which scaping is performed on a cast steel in a continuous casting process or a problem that a capacity of the rolling mill is wasted is prevented.
- a performance rolling apparatus includes a performance machine, a cutter for cutting an internal work produced by the performance machine, a pressing part for pressing the cast, A tunnel provided between the cutter and the rolling mill for heating a cast steel located on a main casting path of the inner casting conveyed from the casting machine to the rolling mill and disposed adjacent to the tunneling furnace, And a loading control unit for releasing the cast slab from the exit to the tunnel and drawing the slab from the entrance to the tunnel onto the main path.
- the loading adjustment unit of the performance rolling apparatus may include a payout unit provided adjacent to the exit to the tunnel, for withdrawing the billet from the main path and leading to the auxiliary path, And a take-in unit that is provided adjacent to the main path and receives the slab through the auxiliary path and draws the slab onto the main path.
- the loading regulation unit of the performance rolling apparatus may further include a loading regulation unit that releases an internal casting strip which has been separated from the main road on the exit side of the tunnel by the withdrawal machine, And then,
- the performance rolling apparatus may include a reheater disposed on the auxiliary path between the take-off unit and the take-in unit and heating the cast on the auxiliary path.
- the performance rolling apparatus may include a scarifier provided on the auxiliary path between the take-off unit and the take-in unit and scaping the cast on the auxiliary path.
- the drawer of the performance rolling apparatus is characterized in that at least one of the inner cast steel produced in the performance machine and the outer cast steel delivered from the outside is received and drawn into the main casting furnace .
- a method of rolling a performance comprising the steps of: cutting an inner cast slab produced in a casting machine and supplying the cut slab to a tunnel; receiving a cast slab on a main cast slab moving through the tunnel; Wherein the step of rolling is performed between a step of rolling down the inner slab and a step of rolling the inner slab, and when the execution of the rolling step is stopped, the slab on the main shaft is released from the exit to the tunnel, And a sub-working step of drawing the slab from the entrance to the tunnel into the main path.
- the sub-working step of the performance rolling method according to another embodiment of the present invention is characterized in that, when the execution of the rolling step is interrupted, a withdrawing step of releasing the cast on the main path from the exit to the tunnel, And returning the slab removed on the main path of the exit to the tunnel to the main path of the entrance to the tunnel through the auxiliary path when the operation is resumed.
- the step of performing the drawing step is performed successively in order to exclude the intervention of the step.
- the sub-working step of the performance rolling method according to another embodiment of the present invention is performed before the drawing step, and when the main part in the sub-working step, which is drawn onto the main path, is below the rolling step performing temperature, And a reheating step of heating the cast on the auxiliary path.
- the sub-working step of the performance rolling method according to another embodiment of the present invention may be performed before the drawing-in step so that a piece of material separated on the main winding path on the exit side into the tunnel enters the tunnel on the main winding path And scaping the piece on the auxiliary path to be delivered.
- the sub-working step is performed before the drawing step, and the slab separated on the main path of the exit to the tunnel enters the tunnel through the main path And introducing an outer cast produced from the outside onto the auxiliary path to be conveyed.
- the outer slab providing step of the performance rolling method according to another embodiment of the present invention may be performed when the capacity of the slab for performing the rolling in the rolling step is larger than the supply amount of the inner slab .
- the performance rolling apparatus and the performance rolling method according to the present invention are advantageous in that the temperature drop rate of the cast steel is compensated for during the abnormal operation, and the problem of the decrease of the casting rate is prevented.
- the performance rolling apparatus and the performance rolling method of the present invention have the advantage of performing scarping on a cast in a continuous casting process, or preventing the problem of wasting the capacity of the rolling mill.
- FIG. 1 is a layout diagram showing a movement path of a cast steel during an abnormal operation in the performance rolling apparatus of the present invention.
- FIG. 2 is a layout diagram showing a movement path that compensates for the loss temperature of the casting during abnormal operation in the performance rolling apparatus of the present invention.
- FIG. 3 is a layout diagram showing a movement path for scaping main spindle in the performance rolling apparatus of the present invention.
- FIG. 4 is a layout diagram showing a movement path for accommodating an outer cast steel in the performance rolling apparatus of the present invention.
- Fig. 5 is a layout diagram showing a movement path for receiving an outer cast and performing scarping in the performance rolling apparatus of the present invention.
- FIG. 6 is a flowchart showing the performance rolling method of the present invention.
- FIG. 7 is a flowchart showing a sub-working step in the performance rolling method of the present invention.
- the present invention relates to a performance rolling apparatus and a performance rolling method, which can prevent a decrease in the rate of realization of casting while compensating for a decrease in the temperature of the casting during abnormal operation.
- FIG. 1 is a layout diagram showing a movement path of a casting during an abnormal operation in the casting rolling apparatus according to the present invention.
- the performance rolling apparatus according to an embodiment of the present invention, A cutter 20 which is located on the output side of the player 10 and cuts an internal piece IS produced by the player 10,
- the rolling mill according to any one of claims 1 to 3, wherein the rolling mill (30) is disposed downstream of the moving direction of the internal slab (IS)
- the casting is moved from the entrance side of the tunnel path (40) onto the main path (MP) And may include a loading adjustment unit 50 for introducing the same.
- the cast steel produced by the casting located in the tunnel furnace 40 or the molten steel remaining in the casting machine 10 is heated by the loading control unit 50 during the abnormal operation,
- the cast on the auxiliary path SP is again drawn onto the main path MP on the entrance side of the tunnel 40 and the main path is moved on the path MP, It is possible to increase the time at which it is located.
- the loading adjustment unit 50 is limited to allow the main part entering the main path MP to flow into the entrance side of the tunnel path 40, so that the temperature of the casting crucible decreased during the movement through the auxiliary path SP To a temperature at which rolling can be performed.
- the plunger 10 may serve to produce an internal slip IS from molten steel through a casting process. That is, the casting machine 10 supplies molten steel from the tundish to the casting mold, and the supplied molten steel is deprived of heat to form a cast steel.
- the inner casting IS is divided into a segment roll and a pinch roll Roll and can be fed to a rolling mill 30 to be described later.
- the rolling mill 30 can secure a certain temperature required for the rolling operation.
- the cutter 20 is provided with a continuous casting process in which a cast steel (IS or an external cast steel (OS)) for rolling in the rolling mill 30 is connected to the continuous casting machine 10 and is provided in a continuous form,
- the cutter 20 is provided on the output side of the player 10.
- the cutter 20 may be provided in the form of a discontinuous shape.
- the mill 30 rotates the inner work piece IS produced and delivered from the machine tool 10
- the cutter 20 cuts the inner slab IS and transfers the cut slab IS to the rolling mill 30 so that the rolling mill 30 can move along with the continuous rolling mill 10, And the rolling is carried out by receiving the inner slab IS in a discontinuous form.
- the inner slab IS must enter the auxiliary path SP or the like, so that the slab 20 cuts the slab.
- the rolling mill 30 receives a slab such as an internal slab IS produced in the continuous casting machine 10 or an external slab OS supplied from the outside as described later to produce a slab or a finished product Can play a role.
- the rolling mill 30 can be rolled while passing the slab through a pair of rolling rolls, and a plurality of rolling stands can be provided in which the rolling roll pairs are provided.
- the rolling mill 30 can be rolled by setting the thickness of the steel slab to be as large as the ocean.
- the rolling mill 30 may be divided into a roughing mill 30 and a finishing mill 30.
- the roughing mill 30 may be configured to initially roll the slabs produced in the milling machine 10,
- the finishing mill (30) is a constitution for finishing rolling the cast steel rolled in the roughing mill (30).
- the casting rolls 30 may be allowed to pass through the casting rolls in a state in which the rolling rolls are opened without performing rolling . If the rolling thickness for the cast steel can be formed solely by the operation of the finishing mill 30, the rough rolling mill 30 does not perform rolling, It is possible.
- a heater for adjusting the rolling temperature of the cast steel, a scale remover for removing scale, and the like may be provided at the entrance of the roughing mill 30 or the finishing mill 30.
- the tunnel furnace 40 serves to maintain or raise the temperature of the rolled steel sheet at the rolling temperature when rolling the rolled steel product to the rolling mill 30.
- the tunnels 40 are provided between the caster 10 and the rolling mill 30 so that the tunnels 40 may be provided between the inner scrap IS produced by the caster 10 or the outer scrap OS delivered from the outside, Or the like is heated to maintain the temperature or the temperature of the cast steel at the rolling temperature.
- the cooling rate can be adjusted by reducing the temperature rise or heating amount of the cast steel, the material of the cast steel can be adjusted.
- the tunnel furnace 40 may be provided with a heating means such as a gas heating system or an induction heating system, and a plurality of heating means may be provided according to the length of the tunnel furnace 40.
- a heating means such as a gas heating system or an induction heating system
- the tunnel furnace 40 is connected to the auxiliary path (not shown) on the main path MP of the inner furnace IS, which is transferred from the performance machine 10 to the rolling mill 30, SP and a loading control unit 50 which draws the billet from the auxiliary path SP to the main path MP at the entrance of the tunnel path 40 can be linked.
- the loading adjustment unit 50 draws a piece from the main path MP at the exit side of the tunnel path 40 and draws the piece into the auxiliary path SP, (SP), and enters the main path (MP). This is because the main path remains in the auxiliary path SP in order to prevent the problem that the slope of the main part is scrapped during the abnormal operation in which the rolling operation can not be performed such as defect of the rolling mill 30 or replacement of the transport roll, . Thereby, the cast steel can be left without being discarded until the operation is normalized on the main path (MP) and the auxiliary path (SP).
- the loading control device may include an ejector 51 and a drawer 52. That is, the loading control unit 50 of the performance rolling apparatus according to an embodiment of the present invention is provided adjacent to the outgoing side of the tunnel path 40, and separates the billet from the main path MP, And a drawer 52 provided adjacent to the entrance of the tunnel path 40 for receiving the slab through the auxiliary path SP and drawing the slab onto the main path MP, . ≪ / RTI >
- the ejector 51 is located on the exit side of the tunnel 40 and serves to transfer the slab from the main path MP to the auxiliary path SP. Accordingly, the movement path of the casting from the exit side of the tunnel 40 to the rolling mill 30 is changed to the auxiliary path SP, thereby enlarging the movement path of the casting.
- the present invention is not limited to this, and if the cast steel can be transferred from the main path (MP) to the auxiliary path (SP), the present invention Of the present invention.
- the inserter 52 is located at the entrance of the tunnel 40 and serves to transfer the slab from the auxiliary path SP to the main path MP. Accordingly, it is possible to deliver the slab off the exit side of the tunnel path (40) toward the rolling mill (30).
- the inserter 52 is provided at the entrance of the tunnel 40, it is possible to heat the casting by the tunnel 40 and to control the temperature of the casting, which is moved through the auxiliary path SP, It is possible to raise the temperature to a rolling-possible temperature.
- the present invention is not limited to such a pusher, and it is also possible that the casting is performed from the auxiliary path SP to the main path MP, So that it can be the lead-in device 52 of the present invention.
- the loading regulation unit 50 of the performance rolling apparatus includes an internal yarn separating unit 50 which is separated from the main path MP on the exit side of the tunnel 40 by the ejector 51, ) Into the main path (MP) on the side of the tunnel (40) by the inserter (52).
- a separate structure is not shown on the moving path of the casting machine from the drawer 51 to the drawer 52, and the casting machine directly connects the drawer 52 to the drawer 51 And may be configured to move and form the auxiliary path SP.
- the length of the auxiliary path SP may be increased or decreased according to the amount of the main surface to be remained.
- the length of the auxiliary path SP is limited in consideration of the amount of cooling of the main path on the auxiliary path SP. That is, the temperature of the casting at the entrance of the rolling mill 30 considering the temperature increase in the tunnel 40 and the amount of cooling of the casting cut off from the auxiliary path SP added to the cast steel must be equal to or higher than the rollable temperature, The maximum distance of the auxiliary path SP is limited.
- FIG. 2 is a layout diagram showing a movement path that compensates for the loss temperature of the casting during abnormal operation in the casting rolling apparatus according to the present invention.
- the performance rolling apparatus according to an embodiment of the present invention includes: (60) provided on the auxiliary path (SP) between the inlet (51) and the inlet (52) and heating the billet on the auxiliary path (SP).
- the reason why the reheating 60 is further provided on the auxiliary path SP is that the temperature of the casting on the remaining path is decreased due to the increase in the number of the pieces to be left on the auxiliary path SP Amount exceeds the range that can be compensated by the tunnel furnace 40.
- the reheater 60 may be provided in the same configuration as the tunnel furnace 40. That is, the reheater 60 may be provided with a heating means such as a gas heating type or an induction heating type, and a plurality of heating means may be provided depending on the length of the heated portion.
- a heating means such as a gas heating type or an induction heating type
- FIG. 3 is a layout diagram showing a movement path for performing scaping of main scraps in the performance rolling apparatus according to the present invention.
- the performance rolling apparatus according to an embodiment of the present invention includes: And a scarifier 70 provided on the auxiliary path SP between the guide 52 and scaping the screed on the auxiliary path SP.
- This scarifier 70 serves to perform scarfing on the inner work piece IS or the outer work piece OS according to the needs of the product to be produced.
- the scarifier 70 injects high-pressure oxygen to the surface or edge of the cast steel to perform oxidation or melting to form the cast steel outer surface with necessary properties.
- the scarifier 70 is not provided on the main path MP but is provided on the auxiliary path SP, it is unnecessary to waste unnecessary part of the main path MP Thereby avoiding the problem of unnecessary cooling caused by the cooling fan. In addition, it is possible to perform scaping selectively for the scraps which require scaping work.
- FIG. 4 is a layout diagram showing a movement path for receiving an outer work piece (OS) in the performance rolling apparatus according to the present invention
- FIG. 5 is a view showing a state in which the outer work piece (OS)
- Fig. 5 is a layout diagram showing a movement path to be performed.
- the drawer 52 of the performance rolling apparatus includes an inner work piece IS produced by the performance machine 10 and an outer work piece OS And at least one is received and introduced into the main path (MP).
- the present invention is not limited to the rolling of the rolling mill 30 with the inner slab IS produced by the machine tool 10, but by introducing an externally produced main rolling mill, the rolling capacity of the rolling mill 30 Is not to be wasted. As a result, the production efficiency of the product produced by the rolling mill 30 can be increased.
- a plurality of players 10 may be linked to one rolling mill 30 to form a main shaft MP in consideration of the rolling capacity of the rolling mill 30.
- the main milling machine 10 and the rolling mill 30 may be formed by a main path MP and a cast produced by another player 10 may be transmitted to the rolling mill 30 through the auxiliary path SP.
- the outer screed OS constitutes a moving path via the scarifier 70, and when additional heating is required, the moving path passing through the reheating 60 .
- FIG. 6 is a flowchart showing a method of rolling a performance according to the present invention.
- a method of rolling a performance according to another embodiment of the present invention includes cutting the inner work piece IS produced in the performance machine 10, A rolling step of receiving a slab on a main shaft (MP) of the slab, which is moved through the tunnel (40), and rolling the slab, and a step When the operation of the rolling step is stopped, the casting on the main path (MP) is released from the exit of the tunnel path (40), and when the rolling step is resumed, To the main path MP.
- MP main shaft
- the sub-working step it is possible to prevent the problem that the slope of the main body is scrapped during the abnormal operation in which the rolling operation can not be performed, such as defects of the rolling mill 30 or replacement of the feed rolls.
- the cast steel produced by the casting located in the tunnel furnace 40 or the molten steel remaining in the casting machine 10 is separated from the main furnace MP on the exit side of the tunnel furnace 40 And the billet on the auxiliary path SP is again introduced onto the main path MP on the entrance side of the tunnel path 40 so that the time when the main path is located on the path of travel .
- the temperature of the reduced casting part during the movement through the auxiliary path SP can be set at a temperature . ≪ / RTI >
- the inner slab providing step is a step of producing molten steel as the inner slab IS in the casting machine 10
- the rolling step is a step of rolling the slab by the rolling mill 30 to form a rolled product.
- the sub-working step includes a main path MP to which the inner work piece IS is transferred to the mill 10 and the rolling mill 30 to prevent a problem that the main body is discarded during abnormal operation,
- the auxiliary path SP is formed.
- the casting on the main path MP is separated from the exit of the tunnel path 40
- the casting strips separated on the main path MP on the exit side of the tunnel 40 are received on the auxiliary path SP and the main path on the entrance side of the tunnel path 40 MP).
- the drawing step for delivering the billet from the main path (MP) to the auxiliary path (SP) and the incoming step for delivering the billet from the auxiliary path (SP) to the main path (MP) are presented.
- drawing-out step and the drawing-in step are carried out in such a manner that no separate step is interposed therebetween, so that a separate step is not performed on the auxiliary path SP and the slab can be configured to remain solely on the path.
- the step of performing the drawing step is performed successively in order to exclude the intervention of other steps between the drawing step and the drawing step.
- the sub-working step is performed in such a short manner that the amount of cooling while the abnormal operation period remains on the auxiliary path SP is small enough to be complemented by the tunnel 40.
- the sub-working step of the performance rolling method according to another embodiment of the present invention is performed before the drawing step, and when the main part in the sub-working step, which is drawn onto the main path MP, , And a reheating step of heating the cast on the auxiliary path (SP).
- This reheating step may be performed by reheating 60 provided on the auxiliary path SP.
- sub-working step of the performance rolling method according to another embodiment of the present invention may be performed before the drawing step, and the slip removed from the main path (MP) on the exit side of the tunnel path (40) And scaping the scrap on the auxiliary path SP to be drawn into the main path MP of the input side MP.
- Such a scarping step may be carried out in the case of producing an outer panel of an automobile or a product requiring a rigid surface.
- the scarping step is performed by a scarifier 70 provided on the auxiliary path SP, and thus the problem of the increase of the main path MP by the scarifier 70 Thereby preventing the problem that the main part on the main path MP is cooled.
- sub-working step of the performance rolling method according to another embodiment of the present invention may be performed before the drawing step, and the slip removed from the main path (MP) on the exit side of the tunnel path (40) (OS), which is produced from the outside, onto the auxiliary path (SP), which is provided on the main path (MP) on the inlet side.
- OS tunnel path
- SP auxiliary path
- the present invention is not limited to the internal bobbin (IS) provided in the internal bobbin providing step, but includes the step of supplying an external bobbin (OS) introduced from the outside.
- IS internal bobbin
- OS external bobbin
- the outer slab providing step is further performed in order to prevent a problem that the rolling mill 30 performing the rolling step wastes a capacity to be rolled.
- the outer slab providing step of the performance rolling method according to another embodiment of the present invention is performed when the capacity of the casting for performing the rolling in the rolling step is larger than the supply amount of the inner slab IS .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
Abstract
A continuous casting and rolling apparatus according to an embodiment of the present invention may include: a continuous casting device; a cutting device that is disposed at the output side of the continuous casting device and cuts an inner cast piece produced from the continuous casting device; a rolling device pressing down on the cast piece and disposed downstream of the continuous casting device in the movement direction of the inner cast piece; a tunnel furnace which is disposed between the cutting device and the rolling device and heats the cast piece disposed on the main path of the inner cast piece that is transferred from the continuous casting device to the rolling device; and a loading adjustment unit which is disposed adjacent to the tunnel furnace and unloads the cast piece from the main path from the outlet side of the tunnel furnace and loads the cast piece onto the main path from the inlet side of the tunnel furnace.
Description
본 발명은 연주압연장치 및 연주압연방법에 관한 것이다.The present invention relates to a performance rolling apparatus and a performance rolling method.
미니밀 공정에서는 연속주조 공정을 통하여 생산된 절단된 주편을 냉각하지 않고 바로 압연할 수 있도록 레이아웃(layout)이 구성되어 있다.In the mini-mill process, a layout is formed so that the cut slabs produced through the continuous casting process can be rolled immediately without cooling.
그리고, 연주기와 압연기 사이에는 버퍼 역할을 하는 공간으로 터널로(tunnel furnace)를 설치하고 있다.In addition, a tunnel furnace is installed as a space serving as a buffer between the player and the rolling mill.
이러한 터널로는 두 개의 연주기와 한 개의 압연기를 연결하기 위한 공간으로써의 기능도 하고, 압연기 롤 교체 등으로 일정 시간이 필요할 때 버퍼 공간으로 사용되며, 그 공간에 슬라브(slab) 등의 주편이 체류하는 동안 온도하락을 보상하기 위하여 가스 가열방식이나 유도가열 방식 등의 가열기를 설치하여 하락 온도를 보상하고 있다.These tunnels serve as a space for connecting two castors and one rolling mill, and are used as a buffer space when a certain period of time is required due to the replacement of a rolling mill roll, etc., and slabs and other slabs In order to compensate for the temperature drop, a heater such as a gas heating system or an induction heating system is installed to compensate the drop temperature.
그런데, 미니밀 공정에서는 연주에서 생산된 주편이 바로 압연기에 이송되어 압연이 되므로 압연기의 장시간 비정상 조업 상황이 발생했을 때는 터널로 속에 있는 주편과 새로 연주기에서 생산되는 주편은 모두 스크랩으로 처리되어 실수율 손실이 크게 발생하는 문제가 있다. 즉, 종래의 미니밀 공정은 연주기와 압연기가 소재의 흐름에 따라 직접 연결되어있어서 에너지 측면에서 장점은 있지만, 비정상 조업상황에 대응할 수 있는 능력은 떨어지는 단점이 있다.However, in the minilmill process, the casting produced in the performance is directly transferred to the rolling mill to be rolled. Therefore, when an abnormal operation condition occurs for a long time in the rolling mill, both the casting in the tunnel and the new casting are processed with scrap, There is a problem that occurs largely. That is, in the conventional mini-mill process, although the performance and the rolling mill are directly connected to each other according to the flow of the material, there is an advantage in terms of energy, but the ability to cope with an abnormal operation situation is deteriorated.
또한, 자동차 외판재나 엄격한 표면이 요구되는 제품은 주편을 절단한 슬라브 등으로 만들어진 이후 스카핑(scarfing) 공정을 거친다. 이 과정을 통하여 연주과정에서 발생한 표면 결함을 제거하게 된다. 그런데, 미니밀 공정에서 스카핑 방식을 적용하려면, 연주기에서 생산된 주편이 압연기로 바로 이송되는 미니밀 공정의 특성상, 온라인(on-line) 상에 스카핑기가 설치되어 있어야 하는데, 이러한 경우에는 선별적인 주편에 대한 스카핑 작업 수행시, 스카핑 수행이 필요하지 않은 주편들은 스카핑기의 설치 영역만큼 주편이 냉각되는 단점을 가지게 된다.In addition, automobile exterior panels or products that require a rigid surface are made of slabs, such as slabs cut from the slabs, and then subjected to a scarfing process. This process removes surface defects that occur during the performance. However, in order to apply the scarfing method in the mini-mill process, a scarfing machine must be installed on-line in view of the characteristics of the mini-mill process in which the cast slabs produced in the casting machine are directly transferred to the rolling mill. The scraps that do not require scarping have a disadvantage that they are cooled on the side of the installation area of the scarifier.
그리고, 미니밀 공정에서는 연주기가 가동되지 않거나, 연주기의 주편 생산 속도에 따라 압연기의 압연 수용량이 낭비되는 문제도 발생할 수 있다.Also, in the mini-mill process, the player may not be operated, or the rolling capacity of the rolling mill may be wasted depending on the casting production speed of the casting machine.
따라서, 전술한 문제를 해결하기 위한 연주압연장치 및 연주압연방법에 대한 연구가 필요하게 되었다.Therefore, there is a need to study a performance rolling apparatus and a performance rolling method for solving the above-mentioned problems.
본 발명은 비정상 조업시에 주편의 온도 하락을 보완하면서도 주편의 실수율이 저하되는 문제를 방지하는 연주압연장치 및 연주압연방법을 제공하는 것을 목적으로 한다.An object of the present invention is to provide a performance rolling apparatus and a performance rolling method which prevent the problem of a decrease in the yield rate of the cast steel while compensating for a decrease in the temperature of the cast steel during an abnormal operation.
다른 측면으로는 연속주조 공정에서 주편에 대하여 스카핑을 수행하거나, 압연기의 수용량이 낭비되는 문제를 방지하는 연주압연장치 및 연주압연방법을 제공하는 것을 목적으로 한다.Another aspect of the present invention is to provide a performance rolling apparatus and a performance rolling method in which scaping is performed on a cast steel in a continuous casting process or a problem that a capacity of the rolling mill is wasted is prevented.
본 발명의 일 실시예에 따른 연주압연장치는 연주기, 상기 연주기의 출측에 위치하며, 상기 연주기에서 생산되는 내부 주편을 절단하는 절단기, 주편을 압하하며, 상기 연주기보다 상기 내부 주편 이동 방향의 하류에 구비되는 압연기, 상기 절단기와 상기 압연기의 사이에 구비되며, 상기 연주기에서 상기 압연기로 전달되는 상기 내부 주편의 주경로 상에 위치하는 주편을 가열하는 터널로 및 상기 터널로에 인접하여 구비되며, 주경로 상의 주편을 상기 터널로의 출측에서 이탈시키고, 상기 터널로의 입측에서 주편을 주경로 상으로 인입시키는 로딩조절유닛을 포함할 수 있다.A performance rolling apparatus according to an embodiment of the present invention includes a performance machine, a cutter for cutting an internal work produced by the performance machine, a pressing part for pressing the cast, A tunnel provided between the cutter and the rolling mill for heating a cast steel located on a main casting path of the inner casting conveyed from the casting machine to the rolling mill and disposed adjacent to the tunneling furnace, And a loading control unit for releasing the cast slab from the exit to the tunnel and drawing the slab from the entrance to the tunnel onto the main path.
여기서, 본 발명의 일 실시예에 따른 연주압연장치의 상기 로딩조절유닛은, 상기 터널로의 출측에 인접하게 구비되며, 주경로 상에서 주편을 이탈시켜 보조경로로 인입시키는 인출기 및 상기 터널로의 입측에 인접하게 구비되며, 보조경로를 통하여 주편을 전달받아, 주경로 상으로 인입시키는 인입기를 포함할 수 있다.Here, the loading adjustment unit of the performance rolling apparatus according to an embodiment of the present invention may include a payout unit provided adjacent to the exit to the tunnel, for withdrawing the billet from the main path and leading to the auxiliary path, And a take-in unit that is provided adjacent to the main path and receives the slab through the auxiliary path and draws the slab onto the main path.
그리고, 본 발명의 일 실시예에 따른 연주압연장치의 상기 로딩조절유닛은, 상기 인출기에 의해 상기 터널로 출측의 주경로 상에서 이탈시킨 내부 주편을 상기 인입기에 의해서 상기 터널로 입측의 주경로 상으로 인입시키는 것을 특징으로 할 수 있다.The loading regulation unit of the performance rolling apparatus according to an embodiment of the present invention may further include a loading regulation unit that releases an internal casting strip which has been separated from the main road on the exit side of the tunnel by the withdrawal machine, And then,
또한, 본 발명의 일 실시예에 따른 연주압연장치는 상기 인출기와 상기 인입기 사이의 보조경로 상에 구비되며, 보조경로 상의 주편을 가열하는 재가열기를 포함할 수 있다.In addition, the performance rolling apparatus according to an embodiment of the present invention may include a reheater disposed on the auxiliary path between the take-off unit and the take-in unit and heating the cast on the auxiliary path.
더하여, 본 발명의 일 실시예에 따른 연주압연장치는 상기 인출기와 상기 인입기 사이의 보조경로 상에 구비되며, 보조경로 상의 주편을 스카핑하는 스카핑기를 포함할 수 있다.In addition, the performance rolling apparatus according to an embodiment of the present invention may include a scarifier provided on the auxiliary path between the take-off unit and the take-in unit and scaping the cast on the auxiliary path.
또한, 본 발명의 일 실시예에 따른 연주압연장치의 상기 인입기는, 상기 연주기에서 생산된 내부 주편 및 외부에서 전달되는 외부 주편 중 적어도 하나를 전달받아 주경로 상으로 인입시키는 것을 특징으로 할 수 있다.Further, the drawer of the performance rolling apparatus according to an embodiment of the present invention is characterized in that at least one of the inner cast steel produced in the performance machine and the outer cast steel delivered from the outside is received and drawn into the main casting furnace .
본 발명의 다른 실시예에 따른 연주압연방법은 연주기에서 생산되는 내부 주편을 절단하여 터널로로 공급하는 내부주편 제공단계, 상기 터널로를 통하여 이동되는 주편의 주경로 상에서 주편을 전달받아 상기 주편을 압하하는 압연단계 및 상기 내부주편 제공단계와 상기 압연단계 사이에 수행되며, 상기 압연단계의 수행이 중단되면, 주경로 상의 상기 주편을 상기 터널로의 출측에서 이탈시키고, 상기 압연단계의 수행이 재개되면 상기 터널로의 입측에서 주편을 주경로 상으로 인입시키는 서브워킹단계를 포함할 수 있다.According to another aspect of the present invention, there is provided a method of rolling a performance, comprising the steps of: cutting an inner cast slab produced in a casting machine and supplying the cut slab to a tunnel; receiving a cast slab on a main cast slab moving through the tunnel; Wherein the step of rolling is performed between a step of rolling down the inner slab and a step of rolling the inner slab, and when the execution of the rolling step is stopped, the slab on the main shaft is released from the exit to the tunnel, And a sub-working step of drawing the slab from the entrance to the tunnel into the main path.
여기서, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 서브워킹단계는, 상기 압연단계의 수행이 중단되면, 주경로 상의 상기 주편을 상기 터널로의 출측에서 이탈시키는 인출단계 및 상기 압연단계의 수행이 재개되면, 상기 터널로 출측의 주경로 상에서 이탈된 주편을 보조경로 상에서 전달받아 상기 터널로 입측의 주경로 상으로 인입시키는 인입단계를 포함할 수 있다.Here, the sub-working step of the performance rolling method according to another embodiment of the present invention is characterized in that, when the execution of the rolling step is interrupted, a withdrawing step of releasing the cast on the main path from the exit to the tunnel, And returning the slab removed on the main path of the exit to the tunnel to the main path of the entrance to the tunnel through the auxiliary path when the operation is resumed.
그리고, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 서브워킹단계는, 주경로 상으로 인입되는 주편이 적어도 상기 압연단계 수행 온도를 유지하는 경우에, 상기 인출단계와 상기 인입단계 사이에 다른 단계의 개입을 배제하도록, 상기 인출단계 수행에 연이어 상기 인입단계를 수행하는 것을 특징으로 할 수 있다.Further, in the sub-working step of the performance rolling method according to another embodiment of the present invention, in the case where the main body fed into the main path maintains at least the rolling step execution temperature, The step of performing the drawing step is performed successively in order to exclude the intervention of the step.
또한, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 서브워킹단계는, 상기 인입단계 전에 수행되며, 주경로 상으로 인입되는 상기 서브워킹단계에서의 주편이 상기 압연단계 수행 온도 미만인 경우에, 상기 보조경로 상에서 주편을 가열하는 재가열단계를 포함할 수 있다.Further, the sub-working step of the performance rolling method according to another embodiment of the present invention is performed before the drawing step, and when the main part in the sub-working step, which is drawn onto the main path, is below the rolling step performing temperature, And a reheating step of heating the cast on the auxiliary path.
더하여, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 서브워킹단계는, 상기 인입단계 전에 수행되며, 상기 터널로 출측의 주경로 상에서 이탈된 주편을 상기 터널로 입측의 주경로 상으로 인입되도록 전달하는 보조경로 상에서 주편을 스카핑하는 스카핑단계를 포함할 수 있다.In addition, the sub-working step of the performance rolling method according to another embodiment of the present invention may be performed before the drawing-in step so that a piece of material separated on the main winding path on the exit side into the tunnel enters the tunnel on the main winding path And scaping the piece on the auxiliary path to be delivered.
또한, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 서브워킹단계는, 상기 인입단계 전에 수행되며, 상기 터널로 출측의 주경로 상에서 이탈된 주편을 상기 터널로 입측의 주경로 상으로 인입되도록 전달하는 보조경로 상으로 외부에서 생산된 외부 주편을 도입하는 외부주편 제공단계를 포함할 수 있다.Further, in the sub-working step of the performance rolling method according to another embodiment of the present invention, the sub-working step is performed before the drawing step, and the slab separated on the main path of the exit to the tunnel enters the tunnel through the main path And introducing an outer cast produced from the outside onto the auxiliary path to be conveyed.
그리고, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 외부주편 제공단계는, 상기 압연단계에서 압하를 수행하는 주편의 수용량이 상기 내부 주편의 공급량보다 큰 경우에 수행되는 것을 특징으로 할 수 있다.The outer slab providing step of the performance rolling method according to another embodiment of the present invention may be performed when the capacity of the slab for performing the rolling in the rolling step is larger than the supply amount of the inner slab .
본 발명의 연주압연장치 및 연주압연방법은 비정상 조업시에 주편의 온도 하락을 보완하면서도 주편의 실수율이 저하되는 문제를 방지할 수 있는 이점이 있다.The performance rolling apparatus and the performance rolling method according to the present invention are advantageous in that the temperature drop rate of the cast steel is compensated for during the abnormal operation, and the problem of the decrease of the casting rate is prevented.
다른 측면으로, 본 발명의 연주압연장치 및 연주압연방법은 연속주조 공정에서 주편에 대하여 스카핑을 수행하거나, 압연기의 수용량이 낭비되는 문제를 방지할 수 있는 이점이 있다.In another aspect, the performance rolling apparatus and the performance rolling method of the present invention have the advantage of performing scarping on a cast in a continuous casting process, or preventing the problem of wasting the capacity of the rolling mill.
다만, 본 발명의 다양하면서도 유익한 장점과 효과는 상술한 내용에 한정되지 않으며, 본 발명의 구체적인 실시 형태를 설명하는 과정에서 보다 쉽게 이해될 수 있을 것이다.It should be understood, however, that the various and advantageous advantages and effects of the present invention are not limited to those described above, and may be more readily understood in the course of describing a specific embodiment of the present invention.
도 1은 본 발명의 연주압연장치에서 비정상 조업시에 주편의 이동 경로를 도시한 레이아웃 구성도이다.BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a layout diagram showing a movement path of a cast steel during an abnormal operation in the performance rolling apparatus of the present invention. FIG.
도 2는 본 발명의 연주압연장치에서 비정상 조업시에 주편의 손실 온도를 보완하는 이동 경로를 도시한 레이아웃 구성도이다.FIG. 2 is a layout diagram showing a movement path that compensates for the loss temperature of the casting during abnormal operation in the performance rolling apparatus of the present invention.
도 3은 본 발명의 연주압연장치에서 주편의 스카핑을 수행하는 이동 경로를 도시한 레이아웃 구성도이다.3 is a layout diagram showing a movement path for scaping main spindle in the performance rolling apparatus of the present invention.
도 4는 본 발명의 연주압연장치에서 외부 주편을 수용하는 이동 경로를 도시한 레이아웃 구성도이다.4 is a layout diagram showing a movement path for accommodating an outer cast steel in the performance rolling apparatus of the present invention.
도 5는 본 발명의 연주압연장치에서 외부 주편을 수용하며, 스카핑을 수행하는 이동 경로를 도시한 레이아웃 구성도이다.Fig. 5 is a layout diagram showing a movement path for receiving an outer cast and performing scarping in the performance rolling apparatus of the present invention. Fig.
도 6은 본 발명의 연주압연방법을 나타낸 순서도이다.6 is a flowchart showing the performance rolling method of the present invention.
도 7은 본 발명의 연주압연방법에서 서브워킹단계를 나타낸 순서도이다.7 is a flowchart showing a sub-working step in the performance rolling method of the present invention.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시 형태들을 설명한다. 그러나, 본 발명의 실시형태는 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 이하 설명하는 실시 형태로 한정되는 것은 아니다. 또한, 본 발명의 실시형태는 당해 기술분야에서 평균적인 지식을 가진 자에게 본 발명을 더욱 완전하게 설명하기 위해서 제공되는 것이다. 도면에서 요소들의 형상 및 크기 등은 보다 명확한 설명을 위해 과장될 수 있다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.
또한, 본 명세서에서 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함하며, 명세서 전체에 걸쳐 동일 참조 부호 또는 유사한 방식으로 부여된 참조 부호는 동일 구성 요소 또는 대응하는 구성요소를 지칭하는 것으로 한다.Also, in this specification, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise, and reference signs allotted in the same reference notation or the like throughout the specification refer to the same or corresponding components .
본 발명은 연주압연장치 및 연주압연방법에 관한 것으로, 비정상 조업시에 주편의 온도 하락을 보완하면서도 주편의 실수율이 저하되는 문제를 방지할 수 있으며, 다른 측면으로는, 연속주조 공정에서 주편에 대하여 스카핑을 수행하거나, 압연기(30)의 수용량이 낭비되는 문제를 방지할 수 있다.The present invention relates to a performance rolling apparatus and a performance rolling method, which can prevent a decrease in the rate of realization of casting while compensating for a decrease in the temperature of the casting during abnormal operation. In another aspect, It is possible to perform scarping or to prevent a problem that the capacity of the rolling mill 30 is wasted.
구체적으로 도면을 참조하여 설명하면, 도 1은 본 발명의 연주압연장치에서 비정상 조업시에 주편의 이동 경로를 도시한 레이아웃 구성도로서, 이를 참조하면, 본 발명의 일 실시예에 따른 연주압연장치는 연주기(10), 상기 연주기(10)의 출측에 위치하며, 상기 연주기(10)에서 생산되는 내부 주편(IS)을 절단하는 절단기(20), 주편을 압하하며, 상기 연주기(10)보다 상기 내부 주편(IS) 이동 방향의 하류에 구비되는 압연기(30), 상기 절단기(20)와 상기 압연기(30)의 사이에 구비되며, 상기 연주기(10)에서 상기 압연기(30)로 전달되는 상기 내부 주편(IS)의 주경로(MP) 상에 위치하는 주편을 가열하는 터널로(40) 및 상기 터널로(40)에 인접하여 구비되며, 주경로(MP) 상의 주편을 상기 터널로(40)의 출측에서 이탈시키고, 상기 터널로(40)의 입측에서 주편을 주경로(MP) 상으로 인입시키는 로딩조절유닛(50)을 포함할 수 있다.1 is a layout diagram showing a movement path of a casting during an abnormal operation in the casting rolling apparatus according to the present invention. Referring to FIG. 1, the performance rolling apparatus according to an embodiment of the present invention, A cutter 20 which is located on the output side of the player 10 and cuts an internal piece IS produced by the player 10, The rolling mill according to any one of claims 1 to 3, wherein the rolling mill (30) is disposed downstream of the moving direction of the internal slab (IS) A tunnel 40 for heating a cast slab located on the main path MP of the slab IS and a slab 40 disposed adjacent to the tunnel slab 40 for feeding a slab on the main slab MP to the tunnel 40. [ And the casting is moved from the entrance side of the tunnel path (40) onto the main path (MP) And may include a loading adjustment unit 50 for introducing the same.
이와 같은 구성에 의하면, 상기 압연기(30)의 하자 또는 이송롤의 교체 등 압연 작업이 불가한 비정상 조업시에 주편이 스크랩 처리되어 실수율이 저하되는 문제를 방지할 수 있게 된다.According to such a configuration, it is possible to prevent the problem that the slope of the slab is scrapped during the abnormal operation in which the rolling operation can not be performed, such as defects of the rolling mill 30 or replacement of the slip rolls, thereby reducing the slump rate.
즉, 상기 터널로(40)에 위치하는 주편 또는 상기 연주기(10)에 남아있는 용강에 의해서 생산되는 주편은 비정상 조업 동안에 상기 로딩조절유닛(50)에 의해서 상기 터널로(40) 출측의 주경로(MP) 상에서 이탈되어 보조경로(SP)로 유입되고, 또한 상기 보조경로(SP) 상의 주편은 다시 상기 터널로(40) 입측의 주경로(MP) 상으로 인입되어, 상기 주편이 이동 경로 상에 위치하는 시간을 증가시킬 수 있게 된다. That is, the cast steel produced by the casting located in the tunnel furnace 40 or the molten steel remaining in the casting machine 10 is heated by the loading control unit 50 during the abnormal operation, The cast on the auxiliary path SP is again drawn onto the main path MP on the entrance side of the tunnel 40 and the main path is moved on the path MP, It is possible to increase the time at which it is located.
이와 같이, 상기 주편이 상기 압연기(30)에 진입하지 않고도 이동 경로 상에서 잔류하는 경로를 확보하여, 상기 주편의 잔류 경로 미확보에 의한 스크랩 처리에 의해 낭비되는 문제를 방지할 수 있게 된다.In this way, it is possible to secure a remaining path on the moving path without entering the rolling mill 30, and to avoid a waste of the scrap by the scrapping due to the residual path uncertainty of the rolling mill.
더욱이, 상기 로딩조절유닛(50)은 주경로(MP) 상으로 진입되는 주편이 상기 터널로(40)의 입측으로 유입되게 한정됨으로서, 보조경로(SP)를 통하여 이동하는 동안에 저하된 주편의 온도를 압연이 수행될 수 있는 온도로 보완할 수 있게 된다.Further, the loading adjustment unit 50 is limited to allow the main part entering the main path MP to flow into the entrance side of the tunnel path 40, so that the temperature of the casting crucible decreased during the movement through the auxiliary path SP To a temperature at which rolling can be performed.
상기 연주기(10)는 주조 공정을 통하여 용강으로부터 내부 주편(IS)을 생산하는 역할을 할 수 있다. 즉, 상기 연주기(10)는 턴디쉬에서 주형으로 용강을 공급하며, 공급된 용강은 열량을 빼앗기면서 주편을 형성하게 되고, 상기 내부 주편(IS)은 세그먼트롤(Segment Roll)과 핀치롤(Pinch Roll)에 의해서 가이드 되며 이동되어 후술할 압연기(30)로 공급될 수 있다.The plunger 10 may serve to produce an internal slip IS from molten steel through a casting process. That is, the casting machine 10 supplies molten steel from the tundish to the casting mold, and the supplied molten steel is deprived of heat to form a cast steel. The inner casting IS is divided into a segment roll and a pinch roll Roll and can be fed to a rolling mill 30 to be described later.
다만, 이러한 연주기(10)는 상기 용강의 응고 속도에 의존하여 내부 주편(IS)을 생산하기 때문에, 생산 속도를 조절하는 것이 곤란하다. 그렇기 때문에, 상기 연주기(10)에서 생산된 내부 주편(IS)을 연속적으로 전달받아 후술할 압연기(30)로 압하하여 제품을 생산하는 것은 속도의 제약이 있게 된다.However, it is difficult to control the production rate because such a continuous casting machine 10 produces the internal cast IS depending on the solidification speed of the molten steel. Therefore, it is a speed limitation to produce the product by continuously receiving the internal slab IS produced in the continuous casting machine 10 and rolling it down to a rolling mill 30 to be described later.
그러나, 상기 연주기(10)에서 배출된 내부 주편(IS)은 평균 온도가 높기 때문에, 압연기(30)에서 압연작업시에 필요로 하는 온도를 어느 정도 확보할 수 있는 이점이 있다.However, since the internal cast IS discharged from the casting machine 10 has a high average temperature, there is an advantage that the rolling mill 30 can secure a certain temperature required for the rolling operation.
상기 절단기(20)는 상기 압연기(30)에서 압연을 수행하는 주편(내부 주편(IS) 또는 외부 주편(OS))이 상기 연주기(10)와 연결되어 연속된 형태로 제공되는지, 아니면 상기 연주기(10)와 떨어져 불연속된 형태로 제공되는지를 조정하는 역할을 할 수 있으며, 이를 위해서, 상기 절단기(20)는 상기 연주기(10)의 출측에 제공된다.The cutter 20 is provided with a continuous casting process in which a cast steel (IS or an external cast steel (OS)) for rolling in the rolling mill 30 is connected to the continuous casting machine 10 and is provided in a continuous form, The cutter 20 is provided on the output side of the player 10. The cutter 20 may be provided in the form of a discontinuous shape.
다시 말해, 상기 절단기(20)가 상기 내부 주편(IS)을 절단하지 않고 자유 통과시키면, 상기 압연기(30)는 상기 연주기(10)에서 생산되어 전달되는 내부 주편(IS)을 상기 연주기(10)와 연결되어 연속된 형태로 전달받아 압연을 수행하게 되고, 상기 절단기(20)가 상기 내부 주편(IS)을 절단하여 압연기(30)로 전달하면, 상기 압연기(30)는 상기 연주기(10)와 떨어져 불연속된 형태로 내부 주편(IS)을 전달받아 압연을 수행하게 된다.In other words, when the cutter 20 freely passes through the inner work piece IS without cutting, the mill 30 rotates the inner work piece IS produced and delivered from the machine tool 10, The cutter 20 cuts the inner slab IS and transfers the cut slab IS to the rolling mill 30 so that the rolling mill 30 can move along with the continuous rolling mill 10, And the rolling is carried out by receiving the inner slab IS in a discontinuous form.
다만, 비정상 조업에 의한 상기 압연기(30)의 중단시에는 상기 내부 주편(IS)을 보조경로(SP) 등으로 진입시켜야 하므로, 상기 절단기(20)는 상기 주편을 절단하게 된다.However, when the rolling mill 30 is stopped due to abnormal operation, the inner slab IS must enter the auxiliary path SP or the like, so that the slab 20 cuts the slab.
상기 압연기(30)는 상기 연주기(10)에서 생산된 내부 주편(IS) 또는 후술할 바와 같이 외부에서 전달되어 제공되는 외부 주편(OS) 등의 주편을 전달받아 압하하여 박물 또는 후물 제품을 생산하는 역할을 할 수 있다. The rolling mill 30 receives a slab such as an internal slab IS produced in the continuous casting machine 10 or an external slab OS supplied from the outside as described later to produce a slab or a finished product Can play a role.
이를 위해서, 상기 압연기(30)는 압연롤 쌍 사이로 상기 주편을 통과시키면서 압연할 수 있으며, 이러한 압연롤 쌍이 제공되는 압연스탠드는 복수 개가 제공될 수 있다.For this purpose, the rolling mill 30 can be rolled while passing the slab through a pair of rolling rolls, and a plurality of rolling stands can be provided in which the rolling roll pairs are provided.
이와 같이, 상기 압연기(30)는 상기 주편에 대하여 대양한 두께로 설정하여 압연을 수행할 수 있는 것이다.Thus, the rolling mill 30 can be rolled by setting the thickness of the steel slab to be as large as the ocean.
그리고, 상기 압연기(30)는 조압연기(30)와 사상압연기(30)로 구분하여 제공될 수도 있으며, 상기 조압연기(30)는 상기 연주기(10)에서 생산된 주편을 최초로 압연하는 구성이고, 상기 사상압연기(30)는 상기 조압연기(30)에서 압연한 주편에 대한 마무리 압연을 수행하는 구성이다.The rolling mill 30 may be divided into a roughing mill 30 and a finishing mill 30. The roughing mill 30 may be configured to initially roll the slabs produced in the milling machine 10, The finishing mill (30) is a constitution for finishing rolling the cast steel rolled in the roughing mill (30).
여기서, 상기 주편에 대한 압연 두께가 상기 조압연기(30)에 의해서 만족을 하게 되면, 상기 사상압연기(30)에서는 압연을 수행하지 않고 압연롤 쌍들이 개방된 상태로 상기 주편을 자유 통과시킬 수도 있고, 그 반대로 상기 주편에 대한 압연 두께가 상기 사상압연기(30)의 작동만으로 형성될 수 있으면, 상기 조압연기(30)에서는 압연을 수행하지 않고 압연롤 쌍들이 개방된 상태로 상기 주편을 자유 통과시킬 수도 있다.Here, if the rolling thickness of the cast steel is satisfied by the roughing mill 30, the casting rolls 30 may be allowed to pass through the casting rolls in a state in which the rolling rolls are opened without performing rolling , If the rolling thickness for the cast steel can be formed solely by the operation of the finishing mill 30, the rough rolling mill 30 does not perform rolling, It is possible.
그리고, 상기 조압연기(30) 또는 상기 사상압연기(30)의 입측에는 상기 주편의 압연 온도를 조정하기 위한 가열기, 스케일을 제거하는 스케일제거기 등이 제공될 수도 있다.A heater for adjusting the rolling temperature of the cast steel, a scale remover for removing scale, and the like may be provided at the entrance of the roughing mill 30 or the finishing mill 30.
상기 터널로(40)는 주편을 상기 압연기(30)로 전달하여 압연을 수행할 때, 상기 주편이 압연되는 온도로 유지 또는 승온시키는 역할을 하게 된다.The tunnel furnace 40 serves to maintain or raise the temperature of the rolled steel sheet at the rolling temperature when rolling the rolled steel product to the rolling mill 30.
이를 위해서 상기 터널로(40)는 상기 연주기(10)와 상기 압연기(30) 사이에 구비되며, 상기 연주기(10)에서 생산되는 내부 주편(IS) 또는 외부에서 전달되어 제공되는 외부 주편(OS) 등의 주편을 가열하여 상기 주편을 압연되는 온도로 유지 또는 승온시키게 된다.The tunnels 40 are provided between the caster 10 and the rolling mill 30 so that the tunnels 40 may be provided between the inner scrap IS produced by the caster 10 or the outer scrap OS delivered from the outside, Or the like is heated to maintain the temperature or the temperature of the cast steel at the rolling temperature.
다른 측면으로는 상기 주편의 승온 또는 가열량을 감소시킴에 따른 냉각의 속도를 조정할 수 있기 때문에, 주편의 재질을 조정할 수도 있다.On the other hand, since the cooling rate can be adjusted by reducing the temperature rise or heating amount of the cast steel, the material of the cast steel can be adjusted.
이를 위해서, 상기 터널로(40)는 가스 가열방식이나, 유도가열 방식 등의 가열 수단이 제공될 수 있으며, 터널로(40)의 길이에 따라 복수 개가 구비될 수 있다.For this purpose, the tunnel furnace 40 may be provided with a heating means such as a gas heating system or an induction heating system, and a plurality of heating means may be provided according to the length of the tunnel furnace 40.
특히, 상기 터널로(40)는 상기 터널로(40)의 출측에서는 상기 연주기(10)에서 상기 압연기(30)로 전달되는 내부 주편(IS)의 주경로(MP) 상에서 상기 주편을 보조경로(SP)로 이탈시키고, 상기 터널로(40)의 입측에서 상기 보조경로(SP)에서 상기 주경로(MP)로 상기 주편을 인입시키는 로딩조절유닛(50)이 연계될 수 있다.Particularly, on the exit side of the tunnel furnace 40, the tunnel furnace 40 is connected to the auxiliary path (not shown) on the main path MP of the inner furnace IS, which is transferred from the performance machine 10 to the rolling mill 30, SP and a loading control unit 50 which draws the billet from the auxiliary path SP to the main path MP at the entrance of the tunnel path 40 can be linked.
상기 로딩조절유닛(50)은, 상기 터널로(40)의 출측에서 주편을 주경로(MP) 상에서 이탈하여 보조경로(SP)로 인입시키고, 상기 터널로(40)의 입측에서 주편을 보조경로(SP) 상에서 이탈하여 주경로(MP)로 인입시키는 역할을 하게 된다. 이는 상기 압연기(30)의 하자 또는 이송롤의 교체 등 압연 작업이 불가한 비정상 조업시에 주편이 스크랩 처리되어 실수율이 저하되는 문제를 방지하기 위해서, 상기 주편이 잔류 하는 경로를 보조경로(SP)까지 확장한 것이다. 이에 의해서, 상기 주편은 주경로(MP) 및 보조경로(SP) 상에서 조업이 정상화될 때까지 버려지지 않고 잔류할 수 있게 된다.The loading adjustment unit 50 draws a piece from the main path MP at the exit side of the tunnel path 40 and draws the piece into the auxiliary path SP, (SP), and enters the main path (MP). This is because the main path remains in the auxiliary path SP in order to prevent the problem that the slope of the main part is scrapped during the abnormal operation in which the rolling operation can not be performed such as defect of the rolling mill 30 or replacement of the transport roll, . Thereby, the cast steel can be left without being discarded until the operation is normalized on the main path (MP) and the auxiliary path (SP).
이를 위해서, 상기 로딩조절장치는 인출기(51)와 인입기(52)를 포함할 수 있다. 즉, 본 발명의 일 실시예에 따른 연주압연장치의 상기 로딩조절유닛(50)은, 상기 터널로(40)의 출측에 인접하게 구비되며, 주경로(MP) 상에서 주편을 이탈시켜 보조경로(SP)로 인입시키는 인출기(51) 및 상기 터널로(40)의 입측에 인접하게 구비되며, 보조경로(SP)를 통하여 주편을 전달받아, 주경로(MP) 상으로 인입시키는 인입기(52)를 포함할 수 있다.To this end, the loading control device may include an ejector 51 and a drawer 52. That is, the loading control unit 50 of the performance rolling apparatus according to an embodiment of the present invention is provided adjacent to the outgoing side of the tunnel path 40, and separates the billet from the main path MP, And a drawer 52 provided adjacent to the entrance of the tunnel path 40 for receiving the slab through the auxiliary path SP and drawing the slab onto the main path MP, . ≪ / RTI >
상기 인출기(51)는 상기 터널로(40)의 출측에 위치하여 주편을 주경로(MP)에서 보조경로(SP)로 전달하는 역할을 하게 된다. 이에 따라, 상기 터널로(40)의 출측에서 압연기(30)로 향하는 주편의 이동 경로를 보조경로(SP)로 변경함으로써, 상기 주편의 이동 경로를 확대하게 된다.The ejector 51 is located on the exit side of the tunnel 40 and serves to transfer the slab from the main path MP to the auxiliary path SP. Accordingly, the movement path of the casting from the exit side of the tunnel 40 to the rolling mill 30 is changed to the auxiliary path SP, thereby enlarging the movement path of the casting.
이러한 인출기(51)는 이송롤 상에서 상기 주편을 밀어주는 푸셔 등으로 구성될 수 있으나, 이에 한정되는 것은 아니며, 상기 주편을 주경로(MP)에서 보조경로(SP)로 전달할 수 있는 구성이라면 본 발명의 인출기(51)일 수 있다.However, the present invention is not limited to this, and if the cast steel can be transferred from the main path (MP) to the auxiliary path (SP), the present invention Of the present invention.
상기 인입기(52)는 상기 터널로(40)의 입측에 위치하여 주편을 보조경로(SP)에서 주경로(MP)로 전달하는 역할을 하게 된다. 이에 따라, 상기 터널로(40)의 출측에서 이탈된 주편을 상기 압연기(30)로 향하게 전달할 수 있게 된다. The inserter 52 is located at the entrance of the tunnel 40 and serves to transfer the slab from the auxiliary path SP to the main path MP. Accordingly, it is possible to deliver the slab off the exit side of the tunnel path (40) toward the rolling mill (30).
또한 상기 인입기(52)는 상기 터널로(40)의 입측에 구비되므로, 상기 터널로(40)에 의한 주편의 가열을 가능하게 하여 상기 보조경로(SP)를 통하여 이동되면서 하락한 상기 주편의 온도를 압연 가능한 온도까지 승온시킬 수 있게 된다.Since the inserter 52 is provided at the entrance of the tunnel 40, it is possible to heat the casting by the tunnel 40 and to control the temperature of the casting, which is moved through the auxiliary path SP, It is possible to raise the temperature to a rolling-possible temperature.
이러한 인입기(52)도 상기 인출기(51)와 마찬가지로 이송롤 상에서 상기 주편을 밀어주는 푸셔 등으로 구성될 수 있으나, 이에 한정되는 것은 아니며, 상기 주편을 보조경로(SP)에서 주경로(MP)로 전달할 수 있는 구성이라면 본 발명의 인입기(52)가 될 수 있다.However, the present invention is not limited to such a pusher, and it is also possible that the casting is performed from the auxiliary path SP to the main path MP, So that it can be the lead-in device 52 of the present invention.
그리고, 본 발명의 일 실시예에 따른 연주압연장치의 상기 로딩조절유닛(50)은, 상기 인출기(51)에 의해 상기 터널로(40) 출측의 주경로(MP) 상에서 이탈시킨 내부 주편(IS)을 상기 인입기(52)에 의해서 상기 터널로(40) 입측의 주경로(MP) 상으로 인입시키는 것을 특징으로 할 수 있다.The loading regulation unit 50 of the performance rolling apparatus according to an embodiment of the present invention includes an internal yarn separating unit 50 which is separated from the main path MP on the exit side of the tunnel 40 by the ejector 51, ) Into the main path (MP) on the side of the tunnel (40) by the inserter (52).
다시 말해, 상기 인출기(51)에서 상기 인입기(52)로 이동되는 주편의 이동 경로 상에는 별도의 구성이 제시되지 않고, 상기 주편은 상기 인출기(51)에서 상기 인입기(52)를 직접 연결하는 보조경로(SP)를 형성하며 이동되게 구성될 수 있는 것이다. In other words, a separate structure is not shown on the moving path of the casting machine from the drawer 51 to the drawer 52, and the casting machine directly connects the drawer 52 to the drawer 51 And may be configured to move and form the auxiliary path SP.
이와 같이 보조경로(SP)를 형성할 때, 상기 보조경로(SP)의 길이는 잔류해야될 주편의 수량에 따라 가감될 수 있다. When the auxiliary path SP is formed, the length of the auxiliary path SP may be increased or decreased according to the amount of the main surface to be remained.
다만 상기 보조경로(SP)의 길이는 상기 보조경로(SP) 상에서의 상기 주편의 냉각량을 고려하여 한정된다. 즉, 상기 주편에 더해지는 터널로(40)에서의 승온량과 상기 보조경로(SP)에서 빠지는 상기 주편의 냉각량을 고려한 압연기(30) 입측에서의 주편의 온도가 압연 가능한 온도 이상이여야 하며, 이러한 관계에서 상기 보조경로(SP)의 최대 거리가 한정되는 것이다.However, the length of the auxiliary path SP is limited in consideration of the amount of cooling of the main path on the auxiliary path SP. That is, the temperature of the casting at the entrance of the rolling mill 30 considering the temperature increase in the tunnel 40 and the amount of cooling of the casting cut off from the auxiliary path SP added to the cast steel must be equal to or higher than the rollable temperature, The maximum distance of the auxiliary path SP is limited.
도 2는 본 발명의 연주압연장치에서 비정상 조업시에 주편의 손실 온도를 보완하는 이동 경로를 도시한 레이아웃 구성도로서, 이를 참조하면, 본 발명의 일 실시예에 따른 연주압연장치는 상기 인출기(51)와 상기 인입기(52) 사이의 보조경로(SP) 상에 구비되며, 보조경로(SP) 상의 주편을 가열하는 재가열기(60)를 포함할 수 있다.FIG. 2 is a layout diagram showing a movement path that compensates for the loss temperature of the casting during abnormal operation in the casting rolling apparatus according to the present invention. Referring to FIG. 2, the performance rolling apparatus according to an embodiment of the present invention includes: (60) provided on the auxiliary path (SP) between the inlet (51) and the inlet (52) and heating the billet on the auxiliary path (SP).
이와 같이 상기 보조경로(SP) 상에 상기 재가열기(60)를 더 구비하는 것은, 상기 보조경로(SP) 상에 잔류해야될 주편의 수량 증가함에 따라, 잔류 경로 상에서의 주편의 온도 하락(냉각량)이 상기 터널로(40)에서 보완할 수 있는 범위를 초과하였기 때문이다.The reason why the reheating 60 is further provided on the auxiliary path SP is that the temperature of the casting on the remaining path is decreased due to the increase in the number of the pieces to be left on the auxiliary path SP Amount exceeds the range that can be compensated by the tunnel furnace 40. [
이러한 경우는 비정상 조업의 기간이 장기화되는 등의 경우에 연주기(10)에서 생산되는 내부 주편(IS)의 폐기를 방지하면서 주경로(MP) 또는 보조경로(SP) 상에 잔류되는 내부 주편(IS)의 수량이 증가하는 경우이다.In this case, in the case where the period of abnormal operation is prolonged or the like, it is possible to prevent the internal scrap IS produced by the continuous casting machine 10 from being discarded and to prevent the internal scrap IS remaining on the main path MP or the auxiliary path SP ) Is increased.
이러한 재가열기(60)는 상기 터널로(40)와 같은 구성으로 제공될 수 있다. 즉, 상기 재가열기(60)는 가스 가열방식이나, 유도가열 방식 등의 가열 수단이 제공될 수 있으며, 가열되는 구간의 길이에 따라 복수 개가 구비될 수 있다.The reheater 60 may be provided in the same configuration as the tunnel furnace 40. That is, the reheater 60 may be provided with a heating means such as a gas heating type or an induction heating type, and a plurality of heating means may be provided depending on the length of the heated portion.
도 3은 본 발명의 연주압연장치에서 주편의 스카핑을 수행하는 이동 경로를 도시한 레이아웃 구성도로서, 이를 참조하면, 본 발명의 일 실시예에 따른 연주압연장치는 상기 인출기(51)와 상기 인입기(52) 사이의 보조경로(SP) 상에 구비되며, 보조경로(SP) 상의 주편을 스카핑하는 스카핑기(70)를 포함할 수 있다.FIG. 3 is a layout diagram showing a movement path for performing scaping of main scraps in the performance rolling apparatus according to the present invention. Referring to FIG. 3, the performance rolling apparatus according to an embodiment of the present invention includes: And a scarifier 70 provided on the auxiliary path SP between the guide 52 and scaping the screed on the auxiliary path SP.
이러한 스카핑기(70)는 생산될 제품의 필요에 따라 상기 내부 주편(IS) 또는 외부 주편(OS)에 대하여 스카핑(scarfing)을 수행하는 역할을 하게 된다. This scarifier 70 serves to perform scarfing on the inner work piece IS or the outer work piece OS according to the needs of the product to be produced.
일례로 상기 스카핑기(70)는 상기 주편의 표면 또는 모서리에 대하여 고압 산소를 분사하여 산화 내지 용융을 수행하여 상기 주편 외면을 필요한 성질로 형성하게 된다.For example, the scarifier 70 injects high-pressure oxygen to the surface or edge of the cast steel to perform oxidation or melting to form the cast steel outer surface with necessary properties.
특히, 상기 스카핑기(70)는 주경로(MP) 상에 구비되는 것이 아니라, 보조경로(SP) 상에 구비됨에 따라, 스카핑 처리가 불필요한 주편에 대하여는 불필요한 주경로(MP) 구간 낭비에 의한 불필요 냉각이 발생되는 문제를 방지하게 된다. 또한, 스카핑 작업이 필요한 주편에 대하여는 선택적으로 스카핑을 수행할 수 있게 된다.Particularly, since the scarifier 70 is not provided on the main path MP but is provided on the auxiliary path SP, it is unnecessary to waste unnecessary part of the main path MP Thereby avoiding the problem of unnecessary cooling caused by the cooling fan. In addition, it is possible to perform scaping selectively for the scraps which require scaping work.
도 4는 본 발명의 연주압연장치에서 외부 주편(OS)을 수용하는 이동 경로를 도시한 레이아웃 구성도이고, 도 5는 본 발명의 연주압연장치에서 외부 주편(OS)을 수용하며, 스카핑을 수행하는 이동 경로를 도시한 레이아웃 구성도이다.FIG. 4 is a layout diagram showing a movement path for receiving an outer work piece (OS) in the performance rolling apparatus according to the present invention, FIG. 5 is a view showing a state in which the outer work piece (OS) Fig. 5 is a layout diagram showing a movement path to be performed.
상기 도면을 참조하면, 본 발명의 일 실시예에 따른 연주압연장치의 상기 인입기(52)는, 상기 연주기(10)에서 생산된 내부 주편(IS) 및 외부에서 전달되는 외부 주편(OS) 중 적어도 하나를 전달받아 주경로(MP) 상으로 인입시키는 것을 특징으로 할 수 있다.Referring to the drawings, the drawer 52 of the performance rolling apparatus according to an embodiment of the present invention includes an inner work piece IS produced by the performance machine 10 and an outer work piece OS And at least one is received and introduced into the main path (MP).
다시 말해, 상기 연주기(10)에서 생산된 내부 주편(IS)만으로 상기 압연기(30)로 공급하여 압연을 수행하게 한정되지 않고, 외부에서 생산된 주편도 도입함으로써, 상기 압연기(30)의 압연 수용량이 낭비되지 않게 구성하는 것이다. 이에 의해서, 상기 압연기(30)에 의해서 생산되는 제품의 생산 효율을 높일 수 있게 된다.In other words, the present invention is not limited to the rolling of the rolling mill 30 with the inner slab IS produced by the machine tool 10, but by introducing an externally produced main rolling mill, the rolling capacity of the rolling mill 30 Is not to be wasted. As a result, the production efficiency of the product produced by the rolling mill 30 can be increased.
또한 이러한 압연기(30)의 압연 수용량을 고려하여 하나의 압연기(30)에 복수의 연주기(10)가 연계되어 주경로(MP)를 형성할 수도 있고, 다른 측면에서는 메인 연주기(10)와 압연기(30)를 연결하는 주편 이동경로를 주경로(MP)로 형성하고, 다른 연주기(10)에서 생산되는 주편은 상기 보조경로(SP)를 통하여 상기 압연기(30)로 전달되게 구성될 수도 있다.A plurality of players 10 may be linked to one rolling mill 30 to form a main shaft MP in consideration of the rolling capacity of the rolling mill 30. In other respects the main milling machine 10 and the rolling mill 30 may be formed by a main path MP and a cast produced by another player 10 may be transmitted to the rolling mill 30 through the auxiliary path SP.
그리고, 이러한 외부 주편(OS)은 스카핑 처리가 필요한 경우에는 상기 스카핑기(70)를 경유하는 이동 경로를 구성하고, 추가적인 가열이 필요한 경우에는 상기 재가열기(60)를 경유하는 이동 경로를 구성할 수도 있다.When the scraping process is required, the outer screed OS constitutes a moving path via the scarifier 70, and when additional heating is required, the moving path passing through the reheating 60 .
도 6은 본 발명의 연주압연방법을 나타낸 순서도로서, 이를 참조하면, 본 발명의 다른 실시예에 따른 연주압연방법은 연주기(10)에서 생산되는 내부 주편(IS)을 절단하여 터널로(40)로 공급하는 내부주편 제공단계, 상기 터널로(40)를 통하여 이동되는 주편의 주경로(MP) 상에서 주편을 전달받아 상기 주편을 압하하는 압연단계 및 상기 내부주편 제공단계와 상기 압연단계 사이에 수행되며, 상기 압연단계의 수행이 중단되면, 주경로(MP) 상의 상기 주편을 상기 터널로(40)의 출측에서 이탈시키고, 상기 압연단계의 수행이 재개되면 상기 터널로(40)의 입측에서 주편을 주경로(MP) 상으로 인입시키는 서브워킹단계를 포함할 수 있다.FIG. 6 is a flowchart showing a method of rolling a performance according to the present invention. Referring to FIG. 6, a method of rolling a performance according to another embodiment of the present invention includes cutting the inner work piece IS produced in the performance machine 10, A rolling step of receiving a slab on a main shaft (MP) of the slab, which is moved through the tunnel (40), and rolling the slab, and a step When the operation of the rolling step is stopped, the casting on the main path (MP) is released from the exit of the tunnel path (40), and when the rolling step is resumed, To the main path MP.
이와 같이, 상기 서브워킹단계를 구비함으로서, 상기 압연기(30)의 하자 또는 이송롤의 교체 등 압연 작업이 불가한 비정상 조업시에 주편이 스크랩 처리되어 실수율이 저하되는 문제를 방지할 수 있게 된다.Thus, by providing the sub-working step, it is possible to prevent the problem that the slope of the main body is scrapped during the abnormal operation in which the rolling operation can not be performed, such as defects of the rolling mill 30 or replacement of the feed rolls.
즉, 상기 터널로(40)에 위치하는 주편 또는 상기 연주기(10)에 남아있는 용강에 의해서 생산되는 주편은 비정상 조업 동안에, 상기 주편은 상기 터널로(40) 출측의 주경로(MP) 상에서 이탈되어 보조경로(SP)로 유입되고, 또한 상기 보조경로(SP) 상의 주편은 다시 상기 터널로(40) 입측의 주경로(MP) 상으로 인입되어, 상기 주편이 이동 경로 상에 위치하는 시간을 증가시킬 수 있게 된다. That is, during the unstable operation, the cast steel produced by the casting located in the tunnel furnace 40 or the molten steel remaining in the casting machine 10 is separated from the main furnace MP on the exit side of the tunnel furnace 40 And the billet on the auxiliary path SP is again introduced onto the main path MP on the entrance side of the tunnel path 40 so that the time when the main path is located on the path of travel .
이와 같이, 상기 주편이 압연을 수행하는 상기 압연기(30)에 진입하지 않고도 이동 경로 상에서 잔류하는 경로를 확보하여, 상기 주편의 잔류 경로 미확보에 의한 스크랩 처리에 의해 낭비되는 문제를 방지할 수 있게 된다.As described above, it is possible to secure a remaining path on the moving path without entering the rolling mill 30 in which the main strip rolling is performed, and to prevent the problem of being wasted by the scrap processing by the residual path uncertainty of the casting .
더욱이, 주경로(MP) 상으로 진입되는 주편이 상기 터널로(40)의 입측으로 유입되게 한정됨으로서, 보조경로(SP)를 통하여 이동하는 동안에 저하된 주편의 온도를 압연이 수행될 수 있는 온도로 보완할 수 있게 된다.Furthermore, since the main part entering onto the main path MP is limited to flow into the entrance side of the tunnel path 40, the temperature of the reduced casting part during the movement through the auxiliary path SP can be set at a temperature . ≪ / RTI >
여기서, 상기 내부주편 제공단계는 상기 연주기(10)에서 용강을 내부 주편(IS)으로 생산하는 단계이고, 상기 압연단계는 주편을 압연기(30)에 의해서 압하하여 압연 제품으로 형성하는 단계이다.Here, the inner slab providing step is a step of producing molten steel as the inner slab IS in the casting machine 10, and the rolling step is a step of rolling the slab by the rolling mill 30 to form a rolled product.
그리고, 상기 서브워킹단계는 앞서 설명한 바와 같이, 비정상 조업시에 주편이 폐기되는 문제를 방지하기 위해서, 상기 연주기(10)와 압연기(30)로 내부 주편(IS)이 전달되는 주경로(MP)에 더하여, 보조경로(SP)를 형성하는 단계이다.As described above, the sub-working step includes a main path MP to which the inner work piece IS is transferred to the mill 10 and the rolling mill 30 to prevent a problem that the main body is discarded during abnormal operation, The auxiliary path SP is formed.
더 구체적으로, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 서브워킹단계는, 상기 압연단계의 수행이 중단되면, 주경로(MP) 상의 상기 주편을 상기 터널로(40)의 출측에서 이탈시키는 인출단계 및 상기 압연단계의 수행이 재개되면, 상기 터널로(40) 출측의 주경로(MP) 상에서 이탈된 주편을 보조경로(SP) 상에서 전달받아 상기 터널로(40) 입측의 주경로(MP) 상으로 인입시키는 인입단계를 포함할 수 있다.More specifically, in the sub-working step of the performance rolling method according to another embodiment of the present invention, when the execution of the rolling step is interrupted, the casting on the main path MP is separated from the exit of the tunnel path 40 The casting strips separated on the main path MP on the exit side of the tunnel 40 are received on the auxiliary path SP and the main path on the entrance side of the tunnel path 40 MP). ≪ / RTI >
다시 말해, 주경로(MP)에서 보조경로(SP) 상으로 주편을 전달하는 인출단계와 보조경로(SP)에서 주경로(MP) 상으로 주편을 전달하는 인입단계를 제시한 것이다.In other words, the drawing step for delivering the billet from the main path (MP) to the auxiliary path (SP) and the incoming step for delivering the billet from the auxiliary path (SP) to the main path (MP) are presented.
그리고, 상기 인출단계와 인입단계는 그 사이에 별도의 단계가 개입되지 않게 수행됨으로써, 보조경로(SP) 상에서 별도의 단계가 수행되지 않고, 오로지 상기 주편을 경로 상에서 잔류하게 구성할 수 있다. In addition, the drawing-out step and the drawing-in step are carried out in such a manner that no separate step is interposed therebetween, so that a separate step is not performed on the auxiliary path SP and the slab can be configured to remain solely on the path.
즉, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 서브워킹단계는, 주경로(MP) 상으로 인입되는 주편이 적어도 상기 압연단계 수행 온도를 유지하는 경우에, 상기 인출단계와 상기 인입단계 사이에 다른 단계의 개입을 배제하도록, 상기 인출단계 수행에 연이어 상기 인입단계를 수행하는 것을 특징으로 할 수 있다.That is, in the sub-working step of the performance rolling method according to another embodiment of the present invention, in the case where the main body fed on the main path MP maintains at least the rolling step execution temperature, The step of performing the drawing step is performed successively in order to exclude the intervention of other steps between the drawing step and the drawing step.
이와 같이 서브워킹단계를 수행하는 것은 비정상 조업의 기간이 보조경로(SP) 상에서 잔류하는 동안의 냉각량이 상기 터널로(40)에서 보완될 수 있는 정도로 작은 짧은 경우이다.The sub-working step is performed in such a short manner that the amount of cooling while the abnormal operation period remains on the auxiliary path SP is small enough to be complemented by the tunnel 40. [
다만, 비정상 조업의 기간이 길어지면 보조경로(SP) 상에서 잔류하는 동안의 냉각량이 증가하여 압연 수행 온도를 확보할 수 없기 때문에, 이러한 경우에는 상기 인출단계와 인입단계 사이에서 주편에 대한 재가열을 수행하게 된다.However, if the period of abnormal operation is prolonged, the amount of cooling during the remaining time on the auxiliary path SP increases and the rolling performance temperature can not be ensured. In this case, reheating of the steel strip is performed between the drawing step and the drawing step .
즉, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 서브워킹단계는, 상기 인입단계 전에 수행되며, 주경로(MP) 상으로 인입되는 상기 서브워킹단계에서의 주편이 상기 압연단계 수행 온도 미만인 경우에, 상기 보조경로(SP) 상에서 주편을 가열하는 재가열단계를 포함할 수 있다.That is, the sub-working step of the performance rolling method according to another embodiment of the present invention is performed before the drawing step, and when the main part in the sub-working step, which is drawn onto the main path MP, , And a reheating step of heating the cast on the auxiliary path (SP).
이러한 재가열단계는 보조경로(SP) 상에 구비되는 재가열기(60)에 의해서 수행될 수 있다.This reheating step may be performed by reheating 60 provided on the auxiliary path SP.
더하여, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 서브워킹단계는, 상기 인입단계 전에 수행되며, 상기 터널로(40) 출측의 주경로(MP) 상에서 이탈된 주편을 상기 터널로(40) 입측의 주경로(MP) 상으로 인입되도록 전달하는 보조경로(SP) 상에서 주편을 스카핑하는 스카핑단계를 포함할 수 있다.In addition, the sub-working step of the performance rolling method according to another embodiment of the present invention may be performed before the drawing step, and the slip removed from the main path (MP) on the exit side of the tunnel path (40) And scaping the scrap on the auxiliary path SP to be drawn into the main path MP of the input side MP.
이러한 스카핑단계는 자동차의 외판재나 엄격한 표면이 요구되는 제품을 생산할 경우에 수행될 수 있다. Such a scarping step may be carried out in the case of producing an outer panel of an automobile or a product requiring a rigid surface.
이를 위해서, 상기 스카핑단계는 상기 보조경로(SP) 상에 구비되는 스카핑기(70)에 의해서 수행되며, 이에 따라 상기 스카핑기(70)에 의해서 주경로(MP)가 증가하는 문제를 방지하게 되며, 이에 따라 주경로(MP) 상의 주편이 냉각되는 문제를 방지할 수 있게 된다.To this end, the scarping step is performed by a scarifier 70 provided on the auxiliary path SP, and thus the problem of the increase of the main path MP by the scarifier 70 Thereby preventing the problem that the main part on the main path MP is cooled.
또한, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 서브워킹단계는, 상기 인입단계 전에 수행되며, 상기 터널로(40) 출측의 주경로(MP) 상에서 이탈된 주편을 상기 터널로(40) 입측의 주경로(MP) 상으로 인입되도록 전달하는 보조경로(SP) 상으로 외부에서 생산된 외부 주편(OS)을 도입하는 외부주편 제공단계를 포함할 수 있다.Further, the sub-working step of the performance rolling method according to another embodiment of the present invention may be performed before the drawing step, and the slip removed from the main path (MP) on the exit side of the tunnel path (40) (OS), which is produced from the outside, onto the auxiliary path (SP), which is provided on the main path (MP) on the inlet side.
다시 말해, 상기 내부주편 제공단계에서 제공되는 내부 주편(IS)에 한정되지 않고, 외부에서 도입되는 외부 주편(OS)을 공급하는 단계를 더 추가한 것이다.In other words, the present invention is not limited to the internal bobbin (IS) provided in the internal bobbin providing step, but includes the step of supplying an external bobbin (OS) introduced from the outside.
이와 같이 외부주편 제공단계가 더 수행되는 것은 상기 압연단계를 수행하는 압연기(30)가 압연 수행할 수용량이 낭비되는 문제를 방지하기 위한 것이다.The outer slab providing step is further performed in order to prevent a problem that the rolling mill 30 performing the rolling step wastes a capacity to be rolled.
다시 말해, 본 발명의 다른 실시예에 따른 연주압연방법의 상기 외부주편 제공단계는, 상기 압연단계에서 압하를 수행하는 주편의 수용량이 상기 내부 주편(IS)의 공급량보다 큰 경우에 수행되는 것을 특징으로 할 수 있다.In other words, the outer slab providing step of the performance rolling method according to another embodiment of the present invention is performed when the capacity of the casting for performing the rolling in the rolling step is larger than the supply amount of the inner slab IS .
이상에서 본 발명의 실시예에 대하여 설명하였지만 본 발명의 권리범위는 이에 한정되는 것은 아니고, 청구범위에 기재된 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 수정 및 변형이 가능하다는 것은 당 기술분야의 통상의 지식을 가진 자에게는 자명할 것이다.While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. But will be obvious to those of ordinary skill in the art.
Claims (13)
- 연주기;A player;상기 연주기의 출측에 위치하며, 상기 연주기에서 생산되는 내부 주편을 절단하는 절단기;A cutter positioned on the exit side of the performance machine for cutting an inner workpiece produced by the performance machine;주편을 압하하며, 상기 연주기보다 상기 내부 주편 이동 방향의 하류에 구비되는 압연기;A rolling mill which presses the cast steel and is disposed downstream of the casting machine in the moving direction of the internal cast steel;상기 절단기와 상기 압연기의 사이에 구비되며, 상기 연주기에서 상기 압연기로 전달되는 상기 내부 주편의 주경로 상에 위치하는 주편을 가열하는 터널로; 및A tunnel provided between the cutter and the rolling mill for heating a cast steel located on a main casting path of the inner casting conveyed from the casting machine to the rolling mill; And상기 터널로에 인접하여 구비되며, 주경로 상의 주편을 상기 터널로의 출측에서 이탈시키고, 상기 터널로의 입측에서 주편을 주경로 상으로 인입시키는 로딩조절유닛;A loading regulation unit provided adjacent to the tunnel furnace and separating the cast piece on the main furnace from the exit to the tunnel and drawing the cast from the entrance to the tunnel into the main furnace;을 포함하는 연주압연장치..
- 제1항에 있어서,The method according to claim 1,상기 로딩조절유닛은,The loading adjustment unit includes:상기 터널로의 출측에 인접하게 구비되며, 주경로 상에서 주편을 이탈시켜 보조경로로 인입시키는 인출기; 및An extractor provided adjacent to the exit to the tunnel, for withdrawing the slab from the main path and leading to the auxiliary path; And상기 터널로의 입측에 인접하게 구비되며, 보조경로를 통하여 주편을 전달받아, 주경로 상으로 인입시키는 인입기;A take-in unit provided adjacent to the entrance to the tunnel and receiving the slab through the auxiliary path and drawing the slab onto the main path;를 포함하는 연주압연장치..
- 제2항에 있어서,3. The method of claim 2,상기 로딩조절유닛은, 상기 인출기에 의해 상기 터널로 출측의 주경로 상에서 이탈시킨 내부 주편을 상기 인입기에 의해서 상기 터널로 입측의 주경로 상으로 인입시키는 것을 특징으로 하는 연주압연장치.Wherein the loading adjustment unit draws an inner cast slab off the main spindle on the exit side of the tunnel by the take-off unit onto the main spindle on the entrance side into the tunnel by the take-in unit.
- 제2항에 있어서,3. The method of claim 2,상기 인출기와 상기 인입기 사이의 보조경로 상에 구비되며, 보조경로 상의 주편을 가열하는 재가열기;A reheater disposed on the auxiliary path between the extractor and the extractor for heating the billet on the auxiliary path;를 포함하는 연주압연장치..
- 제2항에 있어서,3. The method of claim 2,상기 인출기와 상기 인입기 사이의 보조경로 상에 구비되며, 보조경로 상의 주편을 스카핑하는 스카핑기;A scarf provided on the auxiliary path between the extractor and the drawer, scaping the scaffold on the auxiliary path;를 포함하는 연주압연장치..
- 제2항에 있어서,3. The method of claim 2,상기 인입기는, 상기 연주기에서 생산된 내부 주편 및 외부에서 전달되는 외부 주편 중 적어도 하나를 전달받아 주경로 상으로 인입시키는 것을 특징으로 하는 연주압연장치.Wherein the take-in machine receives at least one of an inner cast produced in the performance machine and an outer cast that is delivered from the outside and is drawn into the main casting furnace.
- 연주기에서 생산되는 내부 주편을 절단하여 터널로로 공급하는 내부주편 제공단계;A step of providing an internal slab for cutting an internal slab produced in a spinning machine and supplying it to a tunnel;상기 터널로를 통하여 이동되는 주편의 주경로 상에서 주편을 전달받아 상기 주편을 압하하는 압연단계; 및A rolling step of receiving a casting piece on a main casting path of the casting which is moved through the tunnel passage and pressing the casting piece down; And상기 내부주편 제공단계와 상기 압연단계 사이에 수행되며, 상기 압연단계의 수행이 중단되면, 주경로 상의 상기 주편을 상기 터널로의 출측에서 이탈시키고, 상기 압연단계의 수행이 재개되면 상기 터널로의 입측에서 주편을 주경로 상으로 인입시키는 서브워킹단계;Wherein the rolling is performed between the inner slab providing step and the rolling step, and when the rolling step is stopped, the slab on the main shaft is released from the exit to the tunnel, and when the rolling step is resumed, A sub-working step of drawing the billet from the inlet side into the main pathway;를 포함하는 연주압연방법..
- 제7항에 있어서,8. The method of claim 7,상기 서브워킹단계는, The sub-상기 압연단계의 수행이 중단되면, 주경로 상의 상기 주편을 상기 터널로의 출측에서 이탈시키는 인출단계; 및A withdrawing step of releasing the cast on the main path from the exit to the tunnel when the rolling step is interrupted; And상기 압연단계의 수행이 재개되면, 상기 터널로 출측의 주경로 상에서 이탈된 주편을 보조경로 상에서 전달받아 상기 터널로 입측의 주경로 상으로 인입시키는 인입단계;Wherein when the rolling operation is resumed, a slip removed from the main span on the exit side into the tunnel is received on the auxiliary path and drawn into the tunnel on the main span of the inlet side;를 포함하는 연주압연방법..
- 제8항에 있어서,9. The method of claim 8,상기 서브워킹단계는, The sub-주경로 상으로 인입되는 주편이 적어도 상기 압연단계 수행 온도를 유지하는 경우에, 상기 인출단계와 상기 인입단계 사이에 다른 단계의 개입을 배제하도록, 상기 인출단계 수행에 연이어 상기 인입단계를 수행하는 것을 특징으로 하는 연주압연방법.Performing the drawing step successively to the drawing-out step so as to exclude other intervening steps between the drawing-out step and the drawing-in step, in the case where the main part guided into the main drawing path maintains at least the rolling step execution temperature Characterized in that the method comprises rolling.
- 제8항에 있어서,9. The method of claim 8,상기 서브워킹단계는, The sub-상기 인입단계 전에 수행되며, 주경로 상으로 인입되는 상기 서브워킹단계에서의 주편이 상기 압연단계 수행 온도 미만인 경우에, 상기 보조경로 상에서 주편을 가열하는 재가열단계;A reheating step of heating the cast steel on the auxiliary path, wherein the casting step is carried out before the drawing step and the main part in the subworking step, which is drawn into the main path, is below the rolling step performing temperature;를 포함하는 연주압연방법..
- 제8항에 있어서,9. The method of claim 8,상기 서브워킹단계는, The sub-상기 인입단계 전에 수행되며, 상기 터널로 출측의 주경로 상에서 이탈된 주편을 상기 터널로 입측의 주경로 상으로 인입되도록 전달하는 보조경로 상에서 주편을 스카핑하는 스카핑단계;A scarifying step of scarifying the slab on a sub-path which is performed before the drawing-in step and which delivers the slab separated on the main path of the exit to the tunnel to the tunnel on the main path of the entrance side;를 포함하는 연주압연방법..
- 제8항에 있어서,9. The method of claim 8,상기 서브워킹단계는, The sub-상기 인입단계 전에 수행되며, 상기 터널로 출측의 주경로 상에서 이탈된 주편을 상기 터널로 입측의 주경로 상으로 인입되도록 전달하는 보조경로 상으로 외부에서 생산된 외부 주편을 도입하는 외부주편 제공단계;Providing an outer slab, which is produced beforehand, on an auxiliary path, which is carried out before the step of drawing, to transfer the slab separated on the main path of the exit to the tunnel to the tunnel through the main path of the entrance;를 포함하는 연주압연방법..
- 제12항에 있어서,13. The method of claim 12,상기 외부주편 제공단계는, 상기 압연단계에서 압하를 수행하는 주편의 수용량이 상기 내부 주편의 공급량보다 큰 경우에 수행되는 것을 특징으로 하는 연주압연방법.Wherein the outer slab providing step is performed when the capacity of the slab to be slid in the rolling step is larger than the supply amount of the inner slab.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201880071807.0A CN111315502A (en) | 2017-11-03 | 2018-11-02 | Continuous casting and rolling apparatus and continuous casting and rolling method |
US16/759,046 US20200331045A1 (en) | 2017-11-03 | 2018-11-02 | Continuous casting and rolling apparatus and continuous casting and rolling method |
JP2020543446A JP6845972B2 (en) | 2017-11-03 | 2018-11-02 | Continuous casting and rolling equipment and continuous casting and rolling method |
EP18874056.7A EP3705198B1 (en) | 2017-11-03 | 2018-11-02 | Continuous casting and rolling apparatus and continuous casting and rolling method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2017-0145823 | 2017-11-03 | ||
KR1020170145823A KR101998966B1 (en) | 2017-11-03 | 2017-11-03 | Continuous casting and rolling apparatus and method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019088771A1 true WO2019088771A1 (en) | 2019-05-09 |
Family
ID=66333583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2018/013277 WO2019088771A1 (en) | 2017-11-03 | 2018-11-02 | Continuous casting and rolling apparatus and continuous casting and rolling method |
Country Status (6)
Country | Link |
---|---|
US (1) | US20200331045A1 (en) |
EP (1) | EP3705198B1 (en) |
JP (1) | JP6845972B2 (en) |
KR (1) | KR101998966B1 (en) |
CN (1) | CN111315502A (en) |
WO (1) | WO2019088771A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220088654A1 (en) * | 2020-09-24 | 2022-03-24 | Primetals Technologies Austria GmbH | Combined casting and rolling installation and method for operating the combined casting and rolling installation |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110253305B (en) * | 2019-06-24 | 2020-03-31 | 包头市一禾稀土铝业科技材料有限公司 | Rapid preparation method and equipment of deoxidized aluminum block |
KR102370393B1 (en) * | 2020-05-28 | 2022-03-04 | 현대제철 주식회사 | Method and apparatus for preventing to slab side surface defect |
CN112122343B (en) * | 2020-09-09 | 2022-09-06 | 山西云时代太钢信息自动化技术有限公司 | Quick direct-feeding system platform for small-section casting blank |
WO2023186471A1 (en) * | 2022-03-29 | 2023-10-05 | Sms Group Gmbh | Roll casting installation and method for operating same |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0747418A (en) * | 1993-08-09 | 1995-02-21 | Ishikawajima Harima Heavy Ind Co Ltd | Hot rolling equipment |
KR960033577A (en) * | 1995-03-03 | 1996-10-22 | 사또 후미오 | Hot rolling method and apparatus |
KR20110092101A (en) * | 2010-02-08 | 2011-08-17 | 주식회사 포스코 | Slab processing method and slab processing system |
KR20130075799A (en) * | 2011-12-28 | 2013-07-08 | 주식회사 포스코 | Batch and endless rolling system and method |
KR20160078572A (en) * | 2014-12-24 | 2016-07-05 | 주식회사 포스코 | Continuous casting and rolling method and apparatus |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS533949A (en) * | 1976-07-02 | 1978-01-14 | Hitachi Ltd | Direct feed rolling line |
JPH0381012A (en) | 1989-08-22 | 1991-04-05 | Kawasaki Steel Corp | Heat compensation device in direct rolling process |
DE4017928A1 (en) * | 1990-06-05 | 1991-12-12 | Schloemann Siemag Ag | METHOD AND SYSTEM FOR THE PRODUCTION OF HOT-ROLLED TAPES OR PROFILES FROM CONTINUOUSLY PRE-MATERIAL |
US5579569A (en) | 1992-05-12 | 1996-12-03 | Tippins Incorporated | Slab container |
JP2845087B2 (en) | 1993-05-13 | 1999-01-13 | 株式会社日立製作所 | Continuous casting hot rolling equipment |
TW336184B (en) * | 1995-01-11 | 1998-07-11 | Tippins Inc | Intermediate thickness slab caster and inline hot strip and plate line, method of processing metal slabs and slab container |
DE19621259A1 (en) | 1996-05-25 | 1997-11-27 | Schloemann Siemag Ag | Process and plant for the production of stainless steel or carbon steel sheet from thin slabs produced by continuous casting |
DE19712212A1 (en) | 1997-03-24 | 1998-10-01 | Schloemann Siemag Ag | Process and plant for rolling out hot wide strip from continuously cast slabs |
DE19953252A1 (en) | 1999-11-04 | 2001-05-10 | Sms Demag Ag | Process for the surface treatment of a continuously cast steel product and device therefor |
DE10252246A1 (en) | 2002-11-07 | 2004-05-27 | Sms Demag Ag | Process for surface treating a thin slab to remove surface defects and impurities inside a continuous casting plant comprises completely cooling, surface treating, bringing to a rolling temperature, and feeding to a rolling mill |
DE10304318C5 (en) | 2003-02-04 | 2015-10-15 | Sms Group Gmbh | Process for rolling thin and / or thick slabs of steel materials to hot strip |
JP2005262255A (en) | 2004-03-17 | 2005-09-29 | Kawasaki Heavy Ind Ltd | Equipment for manufacturing hot-rolled steel strip, method for constituting the same equipment and method for manufacturing hot-rolled steel strip |
DE102008020412A1 (en) | 2007-08-24 | 2009-02-26 | Sms Demag Ag | Method and device for producing a metal strip by casting rolls |
KR20090050188A (en) | 2007-11-15 | 2009-05-20 | 재단법인 포항산업과학연구원 | Method for eliminating surface defects of slab in continuously casting facilty |
CN103464463B (en) * | 2013-09-26 | 2015-04-08 | 湖北中钢联冶金工程有限公司 | Continuous-casting and continuous-rolling integrating device and process |
US10239143B2 (en) | 2013-12-23 | 2019-03-26 | Posco | Slab scarfing apparatus and method for controlling the same |
CN107008750B (en) * | 2017-04-20 | 2019-10-11 | 中冶南方工程技术有限公司 | Bilateral road length material continuous casting and rolling production line and its production method |
-
2017
- 2017-11-03 KR KR1020170145823A patent/KR101998966B1/en active IP Right Grant
-
2018
- 2018-11-02 JP JP2020543446A patent/JP6845972B2/en active Active
- 2018-11-02 US US16/759,046 patent/US20200331045A1/en not_active Abandoned
- 2018-11-02 WO PCT/KR2018/013277 patent/WO2019088771A1/en unknown
- 2018-11-02 CN CN201880071807.0A patent/CN111315502A/en not_active Withdrawn
- 2018-11-02 EP EP18874056.7A patent/EP3705198B1/en not_active Revoked
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0747418A (en) * | 1993-08-09 | 1995-02-21 | Ishikawajima Harima Heavy Ind Co Ltd | Hot rolling equipment |
KR960033577A (en) * | 1995-03-03 | 1996-10-22 | 사또 후미오 | Hot rolling method and apparatus |
KR20110092101A (en) * | 2010-02-08 | 2011-08-17 | 주식회사 포스코 | Slab processing method and slab processing system |
KR20130075799A (en) * | 2011-12-28 | 2013-07-08 | 주식회사 포스코 | Batch and endless rolling system and method |
KR20160078572A (en) * | 2014-12-24 | 2016-07-05 | 주식회사 포스코 | Continuous casting and rolling method and apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220088654A1 (en) * | 2020-09-24 | 2022-03-24 | Primetals Technologies Austria GmbH | Combined casting and rolling installation and method for operating the combined casting and rolling installation |
Also Published As
Publication number | Publication date |
---|---|
US20200331045A1 (en) | 2020-10-22 |
CN111315502A (en) | 2020-06-19 |
JP6845972B2 (en) | 2021-03-24 |
JP2021501056A (en) | 2021-01-14 |
EP3705198A4 (en) | 2020-12-23 |
EP3705198B1 (en) | 2022-06-01 |
EP3705198A1 (en) | 2020-09-09 |
KR101998966B1 (en) | 2019-07-10 |
KR20190050430A (en) | 2019-05-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2019088771A1 (en) | Continuous casting and rolling apparatus and continuous casting and rolling method | |
JP2664379B2 (en) | Method and apparatus for producing hot-rolled steel strip | |
WO2011095961A2 (en) | Slab processing method and slab processing system | |
EP0625383B1 (en) | Line to produce strip and/or sheet | |
WO2015099224A1 (en) | Hot rolling device, and device and method for continuous casting/hot rolling | |
KR101495515B1 (en) | Method and apparatus for a combined castingrolling installation | |
JP6764523B2 (en) | Production equipment that can be operated in continuous operation mode and methods for operating production equipment in the event of a failure | |
US3918282A (en) | Combination pickling-rolling mill | |
ITUD950215A1 (en) | LAMINATION PROCESS FOR TAPES AND SHEETS AND LAMINATION LINE THAT CONCRETIZES THIS PROCEDURE | |
WO2016195172A1 (en) | Continuous casting and rolling apparatus and continuous casting and rolling method | |
RU2108877C1 (en) | Method and plant for making hot rolled strips and shapes from continuously cast semifinished product | |
KR20130075799A (en) | Batch and endless rolling system and method | |
CA2228445C (en) | Method and device for operating a continuous casting plant | |
WO2016104865A1 (en) | Rolling method, continuous casting rolling method, and continuous casting rolling device | |
US9937539B2 (en) | Method and device for producing a metal strip in a continuous casting and rolling process | |
JPS5820301A (en) | Hot rolling method and heat treatment furnace for steel material | |
WO2015099288A1 (en) | Device and method for continuous casting/hot rolling | |
WO2015099307A1 (en) | Casting and rolling apparatus and method | |
WO2016104925A1 (en) | Continuous casting and rolling method and continuous casting and rolling device | |
WO2018117698A1 (en) | Continuous casting apparatus and method | |
WO2019124732A1 (en) | Rolling device and rolling method | |
WO2018062749A1 (en) | Apparatus for manufacturing steel plate having excellent isotropy, and steel plate manufactured using same | |
EP0822015B1 (en) | Method to manage an insulated cooling bed and relative insulated cooling bed | |
WO2016195169A1 (en) | Continuous casting and rolling method and continuous casting and rolling apparatus | |
JP3503581B2 (en) | A method for charging a continuously cast hot slab to a heating furnace for hot rolling. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18874056 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2020543446 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2018874056 Country of ref document: EP Effective date: 20200603 |