WO1996035816A1 - Equipement et procede pour fabriquer en continu des bobines de bandes metalliques - Google Patents
Equipement et procede pour fabriquer en continu des bobines de bandes metalliques Download PDFInfo
- Publication number
- WO1996035816A1 WO1996035816A1 PCT/JP1996/001211 JP9601211W WO9635816A1 WO 1996035816 A1 WO1996035816 A1 WO 1996035816A1 JP 9601211 W JP9601211 W JP 9601211W WO 9635816 A1 WO9635816 A1 WO 9635816A1
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- WIPO (PCT)
- Prior art keywords
- strip
- pickling
- heat treatment
- heat
- line
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
-
- 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
- B21B1/463—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 continuous process, i.e. the cast not being cut before rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/021—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular fabrication or treatment of ingot or slab
- C21D8/0215—Rapid solidification; Thin strip casting
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/086—Iron or steel solutions containing HF
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/021—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by dipping
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/027—Associated apparatus, e.g. for pretreating or after-treating
-
- 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
- B21B2015/0021—Cutting or shearing the product in the rolling direction
-
- 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
- B21B2015/0057—Coiling the rolled 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
- B21B39/006—Pinch roll sets
-
- 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
- B21B39/08—Braking or tensioning 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
- B21B45/04—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
- B21B45/06—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 of strip material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B9/00—Measures for carrying out rolling operations under special conditions, e.g. in vacuum or inert atmosphere to prevent oxidation of work; Special measures for removing fumes from rolling mills
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49991—Combined with rolling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
Definitions
- strips of ordinary steel, stainless steel, magnetic steel, etc. are continuously formed at a high speed by, for example, a twin-roll continuous forming machine, and the obtained thin-walled pieces are continuously formed at a high temperature and a high speed.
- the present invention relates to a metal coil continuous manufacturing facility and a metal coil manufacturing method for manufacturing by performing hot rolling and heat treatment, cooling, and then pickling and trimming as necessary.
- the continuous forming, hot rolling and heat treatment processes have been developed and developed into a twin-roll type continuous forming method using two rolls as disclosed in, for example, JP-A-63-224846. Is coming.
- This thin-walled piece continuous manufacturing, hot rolling, and heat treatment process involves, for example, pouring molten steel between two rolls, directly forming a thin-walled piece with a thickness of 2 to 6 mm, The strip obtained by rolling and heat treatment is wound on a winder to produce a hot rolled coil.
- iron oxide scale is present on the surface of the hot-rolled coil obtained by this process, and the shape of both side edges of the coil is disordered. Therefore, when hot-rolled strips are processed and used, pickling equipment for removing scale in advance and trimmers for trimming both side edges of the sheet are required.
- a hot-rolled coil with a thickness of 2 to 6 mm obtained by winding with a winder is passed through a pickling facility on another line to remove scale on the surface, and then the thickness is reduced by a cold rolling mill. Rolling was performed at 0.2 to 3 minutes, and then shipped as a cold rolled coil.
- manufacturing a cold-rolled coil in this way requires two steps: a pickling process on a separate line and a cold-rolling process, resulting in increased equipment costs and increased heat intensity. There were problems such as low productivity.
- the twin-roll type continuous manufacturing method has been put into practical use, and thin-walled pieces having a thickness of 2 to 6 dragons have been continuously manufactured, and then hot-rolled to form a strip having a thickness of 2 mm or less.
- the cold rolling process can be omitted because of the availability of strips, the hot rolling increases the surface area of the strip.
- the trim process There is a growing demand for higher efficiency in the trim process.
- An object of the present invention is to provide a facility capable of efficiently producing a cold rolled product equivalent product from a continuously produced thin-walled piece.
- a further object of the present invention is to provide a manufacturing facility capable of achieving a reduction in manufacturing cost, a shortened delivery time, a reduction in in-process in-process inventory, and the like when manufacturing a cold rolled product equivalent from the above-described thin-walled piece. .
- Still another object of the present invention is to provide a thin-walled, piece-continuous, hot-rolling, heat-treatment
- An object of the present invention is to provide a process with a manufacturing facility in which the pickling process and the trimming process are arranged so that they can be operated immediately in response to process changes.
- Still another object of the present invention is to provide a method for producing a cold rolled product equivalent from the above-mentioned thin piece.
- the present invention provides, in order to advantageously achieve the above object, equipment having the following constitution and a method for producing the above cold rolled product equivalent using the equipment.
- the present invention provides a thin-walled piece continuous production apparatus, a hot rolling mill for rolling pieces produced by this apparatus, a heat treatment furnace for heat-treating the hot-rolled strip, and a heat treatment furnace for heat treatment.
- Cooling device for cooling the strip pickling equipment for pickling the cooled strip, trimmers for trimming the side edges of the pickled strip, and trimmers therefor.
- This is a metal coil continuous manufacturing facility in which winding units that take up strips trimmed on both sides are sequentially arranged.
- the present invention provides a vertical transport device for transporting the strip by switching the transport direction of the strip to the vertical direction on the outlet side of the cooling device, and has two winding reels for both winding and rewinding.
- a take-up machine having a reel, a pickling device, a trimmer, a shear, and a pickling line of the take-up device provided continuously with the vertical conveying device.
- a transfer line is separately provided on the outlet side of the cooling device, a cooled strip is introduced into a pinch roll installed in front of the shear, and the shear line is wound via the shear.
- the transport roll is further extended, and the cooled strip is introduced into the pinch roll installed in front of the trimer, and is passed through the trimer and shear. Trimming lines for winding are provided, and these lines can be selected and operated arbitrarily.
- the heat-treated strip is directly wound up, and when the pickling line is restarted, the rolled-up strip is stripped.
- the pickling line is rewound and sent to the pickling line, and the pickling line that is wound via the pickling, trimmer, and shutter is restarted.
- each line can be switched as appropriate, so that all lines of the line are not completely stopped for repair and maintenance of each process, preventing a drop in productivity
- a desired coil can be easily manufactured by selecting a line according to various requirements of the coil.
- the present invention provides the following manufacturing method using the above-mentioned manufacturing equipment.
- a thin piece having a thickness of 6 mm or less is manufactured by a continuous forming machine, and the obtained piece is hot-rolled at a rolling reduction of 30% or more.
- a hot rolled strip is formed.
- After heat-treating this hot-rolled strip at a temperature in the range of 800 to 1250 ° C it is cooled from a cooling start temperature of around 1000 ° C to 100 ° C or less at a cooling rate of 20 to 40 ° CZ seconds. I do. In this manner, the cooled strip is pickled, passed through a trimmer to trim both side edges, and then wound up to produce a pickling coil.
- the strip is pickled, trimmed, and picked up via a shear. Winding via marline or shear Pickling coils or hot-rolled coils are manufactured by selecting one of these lines.
- FIG. 1 is a schematic front view showing a metal coil continuous manufacturing facility in one embodiment of the present invention.
- FIG. 2 is a schematic front view showing a metal coil continuous manufacturing facility according to another embodiment of the present invention.
- FIG. 3 is a schematic front view showing a metal coil continuous manufacturing facility according to another embodiment of the present invention.
- FIG. 4 is a schematic front schematic view showing a metal coil continuous manufacturing facility according to another embodiment of the present invention.
- FIG. 5 (A) is a schematic front view, partially in section, showing the state of movement of the strip transport device in the pickling tank used in the present invention in the pickling tank.
- B) is a schematic front view, partially in section, showing the state of movement of the transfer device in the washing / drying section.
- FIG. 6 (A) is a partial cross-sectional schematic side view showing the strip release state of the strip transfer device in the pickling equipment used in the present invention
- FIG. 6 (B) is the aforementioned side view
- FIG. 3 is a schematic side view, partially in section, showing a strip gripping state of the transfer device.
- FIG. 7 is a schematic front view of a vertical path transfer device used in the present invention.
- FIG. 8 is a schematic front view of a force roselle type winder used in the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
- a hot rolling mill is installed near the twin-roll continuous forming machine, a cooling device is provided on the outlet side of the hot rolling mill, and a pickling device and a side are provided on the outlet side. Trimmers and winders are installed.
- a thin-walled piece 1 continuously formed by twin rolls 2a and 2b of a twin-roll type continuous forming machine 2 is sent to a hot rolling mill 4 by a pinch roll 3 and hot-rolled. After the lip 1 S is formed, it is introduced into the heat treatment furnace 5.
- a pinch roll 6 and a pinch roll 7 are disposed on the inlet and outlet sides of the heat treatment furnace, and the inlet and outlet pinch rolls 6 and 7 control the tension of the strip in the heat treatment furnace.
- a cooling device 8 is provided downstream of the heat treatment furnace to cool the strip 1 S at 800 to 1250 ° C from the heat treatment furnace 5 to about 100 ° C.
- the cooling device 8 is provided with a slit-shaped nozzle in order to achieve high-speed cooling at a cooling rate of 40 ° C. Z seconds or more.
- a mechanical desk device 9 for example, a shot blast device
- An acid pickling facility 11 is provided downstream of the descatch apparatus 9 via a pinch roll 10 on the pickling side.
- the pickling tank 12 of the pickling equipment 11 has a heat exchanger (not shown) for suppressing the temperature of the pickling solution P, and circulates constantly to achieve high-temperature pickling, and Prevents liquid P from fuming.
- a washing dryer section 13 is arranged (details not shown), and the strip after pickling is washed with water and dried.
- the pickling by the pickling equipment 11 is a dip method, in which sulfuric acid and nitric hydrofluoric acid are used as the pickling solution P.
- a spray method may be employed on the downstream side in the pickling tank 12.
- the strip is passed through the trimmer 15 through the multi-roll 14 and the strip side of the strip is trimmed. Downstream of the trimmer 15, a heating device (edge heater) 16 for heating the sheared surface of the trimmed strip is disposed, and the sheared surface is heated to 900 to 110 ° C. To remove distortion due to work hardening ⁇
- reference numeral 22 denotes an atmosphere control cover under a twin roll
- reference numeral 23 denotes an atmosphere control cover before and after a rolling mill.
- Fig. 2 shows a structure in which thin-walled, continuous strip-forming, hot-rolling, and heat-treating lines I can be selectively connected to an pickling line ⁇ or a shrinking line IV.
- a feed roll 54 and two snubber rolls and a guide are provided downstream of the cooling device 8 disposed on the exit side of the heat treatment furnace 5 of the thin-walled piece continuous production, hot rolling and heat treatment line I.
- a deflector roll 24 having a snubber roll and a guide is provided via the deflector roll 24, a front pinch roll 19, a shear 20, and a winding and rewinding roll.
- a shear line W consisting of a power roselle type winder 27 equipped with take-up reels 25 and 26 is provided, and a pinch roll 53 is provided on the outlet side of the cooling device 8.
- a vertical path transfer device (vertical transfer device) 28 that can be switched via a machine is installed, and a pickling facility 11, a trimmer 15, an edge heater 16 and The pickling line ⁇ ⁇ with Sha-20 is juxtaposed.
- the winder is disposed below and adjacent to the pinch roll 53 on the cooling device outlet side, and the strip 1 S is provided with two snubbers disposed downstream of the pinch port 14. It is bent downward and horizontally by a deflector roll 24a, 24b having a roll and a guide, respectively, and wound alternately by the two reels of the above-mentioned winder.
- FIG. 3 shows an example in which the winding reel 25 of the winding machine 27 performs a rewinding operation on the line of FIG.
- the pickling line is being repaired, maintained, and stopped, the strip cooled directly via the pinch roll 53 disposed on the outlet side of the cooling device 8 is directly taken up by the winding reel 25.
- the pickling line is restarted, and the coil 21a is rewound and stored while the thin-walled-piece continuous manufacturing / hot rolling / heat treatment line I is in a resting state.
- the rip is introduced into the pickling line ⁇ ⁇ via the pinch roll 53 and the vertical path transfer device 28, and then is introduced into the take-up reel 26 via the pickling, trimmer, edge heater and shear. I try to take it up.
- edge heater 16 heats both sides of the strip, the edges of both sides of the strip may be oxidized.
- inert gas It is effective to cool to 400 ° C or less with an inert gas circulation cooling device (not shown).
- Fig. 4 shows a shear line in which a force roselle-type winder is connected via a deflector roll to the downstream of the heat treatment furnace for thin-walled strip continuous production, hot rolling, and heat treatment.
- the heat treatment process is performed by connecting the trimer line equipped with a shearing / winding machine to the pickling, trimming, heating process, shearing and winding machine connected via a vertical path conveyor.
- the three pickling lines are arranged side by side so that these three lines can be switched.
- a force roll is passed through a transport roll 54 and a deflector roll 24 having one snubber roll and a guide.
- Type winding machine 27 is connected and the shear line W is installed.
- the pickling line ⁇ ⁇ is connected by connecting the shear 20 and the winder 27.
- each of the directors 24a (having one snubber roll) and 24b (having two snubber rolls and guides) are provided.
- the thin strip is hot-rolled and heat-treated and then wound, and the thin strip is hot-rolled and heat-treated, then pickled, trimmed, and heat-treated.
- the hot rolling and heat treatment of the thin strip and the strip to be wound it can also be used as the three lines of the trimming heat treatment and winding.
- the line is selected and the process is changed, so that continuous operation or discontinuous operation is easy.
- Various kinds of coils can be manufactured at a time.
- a force roselle type winding machine having winding reels 25 and 26 for both winding and rewinding as winding machines. If one of the winding reels 25 is connected to the vertical path transfer device 28, for example, a thin-walled piece continuous manufacturing, hot rolling, heat treatment, and a winding line V are provided.
- the coil 21a wound by one of the winding reels 25 is unwound and pickled, trimmed, heat-treated and heat-treated through the vertical path transfer device 27. Trimmer ⁇ Heat-treated and can be wound on the other winding reel 26. Pickling, trimming ⁇ Heating ⁇ Winding line ⁇ Cold rolling and heat treatment • Can be operated independently of the winding line.
- FIGS. 5 (A) and (B) show a pick-up tank 12 and a water-washing dryer section 13 equipped with a detachable mechanism 29 for the strip 1 S introduced into the pickling equipment 11.
- 3 shows an example of the structure of a strip transfer device 30 that freely moves above.
- the strip transfer device 30 mainly takes up a coil in a pickling process in a discontinuous process.
- a roll that has been wound up from a winding machine 27 of a force-rose type equipped with winding reels 25 and 26 that are also used for unwinding and is introduced into the pickling tank 12 via the vertical path conveying device 28.
- Trip tip or dummy It has the function of grasping the tip of the unit at the entry side as shown in Fig. (A) and transporting it to the exit side as shown in Fig. (B).
- the strip transfer device 30 is configured such that steel wires 45a, 45b are mounted on guide rails 31 provided on the pickling equipment 11 by winches 44a, 44b having a driving device M. It is arranged so that it can run freely via the.
- Fig. 6 (A) and (B) The detailed structure is shown in Fig. 6 (A) and (B).
- the strip carrier 37 is lifted and lowered by a lifting / lowering unit 32 provided on the strip carrier so that the attachment / detachment mechanism 29 guided by the guide wheels 33 can be moved up and down. are doing.
- the mounting / removing mechanism 29 is provided with a manifold 35 operated by the actuator 34 so that the manipulator tip 35a can be bent inward through the bending portion 35c.
- the distal end 35a is connected to a connecting member 35b rotatably provided on a bent portion 35d provided on the side of the strip pressing portion 35e.
- the manipulator tip 35a is open.
- the transport device 30 is positioned at the leading end of the strip 1 S, the elevating actuator 32 is lowered, and the strip pressing portion 35 e of the attaching / detaching mechanism 29 is stripped. Press against 1 S.
- the manipulator 35 is lowered by the actuator 34 to rotate the connecting member 35b, thereby bending the manipulator tip 35a inward. Hold Trip 1 S.
- the strip transfer device can be freely moved in the pickling equipment. Since it is arranged in such a manner, it is possible to make a rating in the pickling tank for each coil.
- the transport speed is controlled such that the transport speed of the strip transport device is reduced when holding and releasing the strip at the tip of the manipulator, and the transport speed is increased when pickling and washing with water. Can also be performed.
- FIG. 7 shows an example of the structure of the vertical path transport device 28.
- FIG. 7 is a front view showing the transport unit pressing tables 43 on both surface sides of the strip 1S.
- a drive roller 38 and an idle roll 41 are rotatably provided on the pressing table 43, and a steel wire belt 42 is stretched over these rolls.
- the pressing table 43 is provided so as to be able to reciprocate in the surface direction of the strip 1S by the transport unit pressing work unit 35, and the steel wire belt 42 is also provided with a belt tension provided on the pressing table 43. The tension is applied by the controller 40.
- the transfer unit pressing table 43 When transporting Strip 1 S in the vertical direction, the transfer unit pressing table 43 is moved in the Strip 1 S direction, and the steel wire belt 42 is pressed against the strip surface.
- the belt tension controller 40 is driven to apply a predetermined tension to the steel wire belt 42.
- the driving roller 38 In this state, the driving roller 38 is rotated to move the steel wire belt 42 in the vertical direction, and the strip 1 S sandwiching both sides of the steel wire belt 42 is transported in the vertical direction. .
- a force that usually passes a rope or the like between the holes corresponding to the board road and then guides the strip to the line ⁇ In the present invention, one coil is used. It is also possible to pass through the line in one batch process.
- Fig. 8 shows an example of the structure of a carousel type winder having two winding reels that can be used for both winding and rewinding.
- the winding reel 25 is also used as a rewinding reel, and the coil 21a wound on the winding reel 25 is rewound through the rewinding pinch opening 47.
- the band binding the coil 21a is cut with a band cutter 49, and the guide tip 48 guides the end of the strip to form a force rosel type winding. It is sandwiched between the unwinding pinch rolls 47 of the take-off machine 27 and sent out to the pickling line.
- Figure 50 shows a bell trapper.
- a thin piece having a thickness of 6 mm or less is produced, for example, using a twin-roll continuous producing machine.
- the obtained flakes are hot-rolled at a reduction ratio of 30% or more by a hot rolling mill directly connected to a forming machine by utilizing the heat held by the flakes, and the heat-treated furnace is directly connected to the hot rolling mill.
- Heat-treat with heat-insulating cover so that the temperature does not drop below 800 ° C.
- the heat treatment temperature is in the range of 800 to 1250 ° C, preferably 110 to 1250 ° C.
- the strip coming out of the heat treatment furnace is sent to the cooling device and cooled from the cooling start temperature of about 1 000 ° C to 100 ° C or less at a cooling rate of 20 to 40 ° C / sec.
- the cooling reduces the amount of surface scale generated, suppresses intergranular corrosion on the surface, and suppresses peracid washing due to intergranular corrosion.
- the cooled strip is introduced into a pickling facility and immersed in a pickling tank.
- the pickling solution in the pickling tank has a high temperature just below i oo ° c.According to this high temperature pickling, the pickling reaction speed can be increased and the pickling time can be reduced to 40 seconds or less. .
- the strips are washed with water and dried, transported out of the pickling facility, and trimmed on both side edges by side trimmers.
- the strip is passed through a heat treatment apparatus to heat the strip to a temperature range of 900 to 110 ° C., and the strip side trimmer is formed. To remove strain caused by work hardening of the sheared surface.
- the shape of the side edge portion of the strip continuously formed and hot-rolled by the twin-roll type continuous forming machine performed in the present invention is disturbed and irregularities are formed.
- cold rolling is performed in this way, cracks may be generated from the irregularities and the strip may be broken.
- the strip side edge is trimmed, and the work hardening generated by the trim is heat-treated to remove shear strain.
- the strip is passed through a shear, cut in the strip end direction or strip width direction to obtain the required amount of coil, and wound up by a take-up reel.
- the present invention also provides a trim line or a heat treatment line. It is now possible to switch to the process of connecting shear lines.
- a vertical path transfer device that switches the strip transfer line is provided at the exit side of the cooling device, and can be used for both take-up and rewind, for example, as in a force roselle type winder.
- a continuous forming machine is used to form a thin piece of stainless steel with a thickness of 2 to 4 mm and a width of 800 to 1300 mm.
- Continuous production at ⁇ 150 m / min, and then the obtained thin stainless steel strip at 1200 ° C is hot-rolled by a hot rolling mill at a rolling reduction of 30% or more, and a stainless steel strip of 1.5-2.7 mm A lip was manufactured, passed through a heat treatment furnace, heat-treated at 1100 to 1250 ° C for 4 to 10 seconds, and then cooled to 100 ° C at a cooling rate of 50 ° C for a second.
- the obtained pickling coil had good surface properties, no cracks, a uniform internal structure, was stable without fear of intergranular corrosion, and was of good quality.
- the handling cost for pickling is greatly reduced, and the pickling time is significantly reduced.
- a thin-walled piece continuous production, hot rolling, heat treatment, a pickling, a trimer, and a heat treatment line are connected to the thin-walled piece continuous production, hot rolling, heat treatment, and pickling.
- the main purpose is to realize the continuous operation of heat treatment, but it is necessary to minimize the suspension (stop) of the entire line due to repair and maintenance of the line, or to use a different treatment.
- the objects to be manufactured in the present invention include ordinary steel, stainless steel, electromagnetic steel, and other special steels.
- the pickling equipment and trimmers are directly connected to the thin-walled piece continuous manufacturing, hot rolling and heat treatment lines, thereby reducing the cost of the pickling process and trimming process. Short delivery times can be achieved.
- the line is selected and the process is changed, so that continuous operation or discontinuous operation can be performed.
- Various coils can be easily manufactured.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Metal Rolling (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Shearing Machines (AREA)
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960707572A KR100207836B1 (ko) | 1995-05-08 | 1996-05-07 | 금속 코일 연속 제조 장치 및 금속 코일 제조 방법 |
US08/776,076 US5875831A (en) | 1995-05-08 | 1996-05-07 | Process for producing continuously metallic coil |
EP96912309A EP0776984A4 (en) | 1995-05-08 | 1996-05-07 | EQUIPMENT AND METHOD FOR CONTINUOUSLY MANUFACTURING METAL STRIP COILS |
CA002194379A CA2194379C (en) | 1995-05-08 | 1996-05-07 | Apparatus for producing continuoulsly metallic coil and process therefor |
BR9606359A BR9606359A (pt) | 1995-05-08 | 1996-05-07 | Aparelho e processo para produçao contínua de bobina metálica |
AU55162/96A AU692098B2 (en) | 1995-05-08 | 1996-05-07 | Equipment for continuously manufacturing metal coils and metal coil manufacturing method |
RU97101872A RU2125616C1 (ru) | 1995-05-08 | 1996-05-07 | Устройство для непрерывного изготовления металлического рулона и способ изготовления металлического рулона |
US09/197,339 US5947182A (en) | 1995-05-08 | 1998-11-19 | System for producing continuously metallic coil |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7/109470 | 1995-05-08 | ||
JP7109470A JP2750096B2 (ja) | 1995-05-08 | 1995-05-08 | ストリップ連続鋳造熱間圧延熱処理酸洗設備および酸洗コイルの製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996035816A1 true WO1996035816A1 (fr) | 1996-11-14 |
Family
ID=14511057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/001211 WO1996035816A1 (fr) | 1995-05-08 | 1996-05-07 | Equipement et procede pour fabriquer en continu des bobines de bandes metalliques |
Country Status (12)
Country | Link |
---|---|
US (2) | US5875831A (ja) |
EP (1) | EP0776984A4 (ja) |
JP (1) | JP2750096B2 (ja) |
KR (1) | KR100207836B1 (ja) |
CN (1) | CN1058530C (ja) |
AU (1) | AU692098B2 (ja) |
BR (1) | BR9606359A (ja) |
CA (1) | CA2194379C (ja) |
RU (1) | RU2125616C1 (ja) |
TW (1) | TW293790B (ja) |
WO (1) | WO1996035816A1 (ja) |
ZA (1) | ZA963587B (ja) |
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JP2750096B2 (ja) * | 1995-05-08 | 1998-05-13 | 新日本製鐵株式会社 | ストリップ連続鋳造熱間圧延熱処理酸洗設備および酸洗コイルの製造方法 |
IT1281442B1 (it) * | 1995-10-27 | 1998-02-18 | Danieli Off Mecc | Procedimento di laminazione per nastri e lamiere e linea di laminazione che concretizza tale procedimento |
DE19821301A1 (de) * | 1998-05-13 | 1999-11-18 | Abb Patent Gmbh | Anordnung und Verfahren zum Erzeugen von Stahlband |
AUPP964499A0 (en) * | 1999-04-08 | 1999-04-29 | Bhp Steel (Jla) Pty Limited | Casting strip |
US6264183B1 (en) | 1999-08-19 | 2001-07-24 | Precision Products Group | Methods of manufacturing coils and apparatus for same |
FR2798871B1 (fr) * | 1999-09-24 | 2001-11-02 | Usinor | Procede de fabrication de bandes d'acier au carbone, notamment d'acier pour emballages, et bandes ainsi produites |
US7343308B1 (en) * | 2000-05-26 | 2008-03-11 | Hartford Fire Insurance Compnay | Method and system for identifying subrogation potential and valuing a subrogation file |
AT409351B (de) * | 2000-06-05 | 2002-07-25 | Voest Alpine Ind Anlagen | Verfahren und anlage zur herstellung eines metallbandes |
US6622778B1 (en) * | 2000-07-12 | 2003-09-23 | Danieli Technology, Inc. | Method for the direct production of scale-free thin metal strip |
KR20020054413A (ko) * | 2000-12-28 | 2002-07-08 | 이구택 | 환원로와 쿨링롤이 장착된 컴팩트 산세설비 |
AT410767B (de) | 2001-10-24 | 2003-07-25 | Voest Alpine Ind Anlagen | Verfahren und vorrichtung zur kontinuierlichen herstellung eines gewalzten metallbandes aus einermetallschmelze |
ITRM20010678A1 (it) * | 2001-11-15 | 2003-05-15 | Acciai Speciali Terni Spa | Procedimento per la ricristallizzazione in linea di nastri grezzi di solidificazione in acciai al carbonio e in acciai basso legati e nastri |
FR2833871B1 (fr) * | 2001-12-20 | 2004-07-09 | Usinor | Procede et installation de fabrication de bandes metalliques a partir de bandes coulees directement a partir de metal liquide |
AT411025B (de) | 2002-02-27 | 2003-09-25 | Voest Alpine Ind Anlagen | Vorrichtung zum kontinuierlichen vergiessen von metallschmelze |
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US6950713B2 (en) * | 2003-07-30 | 2005-09-27 | Greenwood, Inc. | Method for creating a three-dimensional engraving in a solid and a product created by said method |
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FR2925530B1 (fr) * | 2007-12-21 | 2010-08-27 | Siemens Vai Metals Tech Sas | Installation et procede pour le decapage en continu de bandes d'acier |
IN2012DN02260A (ja) * | 2009-10-07 | 2015-08-21 | Nippon Steel & Sumitomo Metal Corp | |
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CN113751381B (zh) * | 2020-09-01 | 2022-08-12 | 铜陵劦工新材料有限公司 | 一种铜带清洗裁切一体化设备及其清洗方法 |
CN112934971B (zh) * | 2021-01-27 | 2023-04-28 | 哈尔滨广旺机电设备制造有限公司 | 一种铝合金的冷轧机构 |
CN113510162B (zh) * | 2021-07-24 | 2023-05-12 | 鞍钢冷轧钢板(莆田)有限公司 | 一种冷轧带钢制造生产收卷方法 |
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- 1995-05-08 JP JP7109470A patent/JP2750096B2/ja not_active Expired - Fee Related
-
1996
- 1996-05-07 EP EP96912309A patent/EP0776984A4/en not_active Withdrawn
- 1996-05-07 WO PCT/JP1996/001211 patent/WO1996035816A1/ja not_active Application Discontinuation
- 1996-05-07 BR BR9606359A patent/BR9606359A/pt not_active IP Right Cessation
- 1996-05-07 AU AU55162/96A patent/AU692098B2/en not_active Expired
- 1996-05-07 TW TW085105415A patent/TW293790B/zh not_active IP Right Cessation
- 1996-05-07 CN CN96190459A patent/CN1058530C/zh not_active Expired - Lifetime
- 1996-05-07 US US08/776,076 patent/US5875831A/en not_active Expired - Lifetime
- 1996-05-07 ZA ZA963587A patent/ZA963587B/xx unknown
- 1996-05-07 RU RU97101872A patent/RU2125616C1/ru active
- 1996-05-07 KR KR1019960707572A patent/KR100207836B1/ko not_active IP Right Cessation
- 1996-05-07 CA CA002194379A patent/CA2194379C/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
RU2125616C1 (ru) | 1999-01-27 |
CN1153537A (zh) | 1997-07-02 |
ZA963587B (en) | 1996-12-06 |
JP2750096B2 (ja) | 1998-05-13 |
JPH08300037A (ja) | 1996-11-19 |
US5947182A (en) | 1999-09-07 |
AU692098B2 (en) | 1998-05-28 |
EP0776984A4 (en) | 1999-07-14 |
CN1058530C (zh) | 2000-11-15 |
CA2194379C (en) | 2000-11-14 |
EP0776984A1 (en) | 1997-06-04 |
BR9606359A (pt) | 1998-06-23 |
US5875831A (en) | 1999-03-02 |
KR100207836B1 (ko) | 1999-07-15 |
TW293790B (ja) | 1996-12-21 |
AU5516296A (en) | 1996-11-29 |
KR970704058A (ko) | 1997-08-09 |
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