WO2019132316A1 - Roll surface pattern formation device and metal plate manufacturing method - Google Patents

Roll surface pattern formation device and metal plate manufacturing method Download PDF

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Publication number
WO2019132316A1
WO2019132316A1 PCT/KR2018/015595 KR2018015595W WO2019132316A1 WO 2019132316 A1 WO2019132316 A1 WO 2019132316A1 KR 2018015595 W KR2018015595 W KR 2018015595W WO 2019132316 A1 WO2019132316 A1 WO 2019132316A1
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WO
WIPO (PCT)
Prior art keywords
metal plate
laser
roll
pattern
predetermined
Prior art date
Application number
PCT/KR2018/015595
Other languages
French (fr)
Korean (ko)
Inventor
권영섭
Original Assignee
주식회사 포스코
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Publication date
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Publication of WO2019132316A1 publication Critical patent/WO2019132316A1/en

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    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • 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
    • B21B1/22—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 plates, strips, bands or sheets of indefinite length
    • B21B1/227—Surface roughening or texturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/005—Rolls with a roughened or textured surface; Methods for making same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/067—Dividing the beam into multiple beams, e.g. multifocusing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/0869—Devices involving movement of the laser head in at least one axial direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/359—Working by laser beam, e.g. welding, cutting or boring for surface treatment by providing a line or line pattern, e.g. a dotted break initiation line
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals

Definitions

  • the present invention relates to a roll surface pattern forming apparatus for forming a predetermined pattern on a roll surface and a metal plate manufacturing method for forming a metal plate on which a predetermined pattern is formed by using a roll having a predetermined pattern.
  • a predetermined pattern may be formed on a metal plate such as a steel plate.
  • a hairline pattern may be formed on the metal plate to prevent the reflection of light and the beauty.
  • a predetermined pattern is formed on the surface of the roll used for making the metal plate.
  • a passive film is damaged by forming a pattern on a metal plate with a roll having a pattern formed on its surface in a state where a passive film is formed by heat treatment of the metal plate. As a result, the corrosion resistance of the metal plate was deteriorated.
  • the present invention is realized by recognizing at least any one of the above-mentioned conventional needs or problems.
  • a roll surface pattern forming apparatus and a metal plate manufacturing method may include the following features.
  • the apparatus for forming a roll surface pattern includes a plurality of pattern forming lasers each having an oscillated laser at a predetermined interval and irradiating at least a part of the rotating roll surface to form a predetermined pattern on the roll surface A laser irradiating unit for irradiating the laser beam; And a transfer unit for causing the laser irradiation unit to move in the longitudinal direction of the roll; . ≪ / RTI >
  • the laser irradiation unit may include a laser oscillator for oscillating a laser, and a laser diverging lens for diverging a plurality of laser beams emitted from the laser oscillator to a plurality of pattern forming lasers having a predetermined distance therebetween.
  • the laser diverging lens may have an uneven surface so that the incident laser may be diffracted and branched into a plurality of laser beams.
  • the laser irradiation unit may further include a collimator lens disposed between the laser oscillator and the laser diverging lens, the collimator lens preventing diffusion of the laser oscillated by the laser oscillator.
  • the laser irradiation unit is rotatably provided in the transfer unit, and the irradiation angle of the plurality of pattern forming lasers irradiated by the laser irradiation unit can be adjusted by rotation of the laser irradiation unit of the laser irradiation unit.
  • the length of the pattern formed on the surface of the roll can be adjusted by turning on and off the laser oscillator included in the laser irradiation unit.
  • a method of manufacturing a metal plate according to an embodiment of the present invention includes: a rolling step of rolling a slab or a metal plate into a metal plate having a predetermined width and thickness; A pattern forming step of forming a predetermined pattern on a metal plate having a predetermined width and thickness with a roll having a predetermined pattern formed on its surface; And a heat treatment step of heat-treating the metal plate on which the predetermined pattern is formed; . ≪ / RTI >
  • a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by a roll having a predetermined pattern formed on its surface by the above-described roll surface pattern forming apparatus.
  • a hairline pattern may be formed on the roll surface by the roll surface pattern forming apparatus.
  • a slab or a metal plate is rolled by a plurality of rolling mills to form a metal plate having a predetermined width and thickness.
  • the roll having a predetermined pattern formed on the surface thereof is placed in a rolling mill And a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by the work roll having a predetermined pattern formed on its surface in the pattern formation step.
  • the slab or the metal plate is rolled several times in one rolling machine to form a metal plate having a predetermined width and thickness.
  • a predetermined pattern is formed on the surface in the last rolling of the slab or the metal plate by the rolling machine
  • the formed roll may be replaced with a work roll of the rolling mill to form a predetermined pattern on a metal plate having a predetermined width and thickness.
  • the metal plate on which the predetermined pattern is formed may be subjected to annealing heat treatment or brass annealing heat treatment.
  • Fig. 1 is a view showing an embodiment of a roll surface pattern forming apparatus according to the present invention and thereby forming a pattern on a roll surface.
  • Fig. 2 is a diagram showing the configuration of a laser irradiation unit and its operation in an embodiment of the apparatus for forming a roll surface pattern according to the present invention.
  • FIG 3 is a view showing an embodiment of a method for manufacturing a metal plate according to the present invention.
  • FIG. 4 is a view showing a process to which an embodiment of the method for manufacturing a metal plate according to the present invention is applied.
  • FIG. 1 An apparatus for forming a roll surface pattern according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.
  • FIG. 1 An apparatus for forming a roll surface pattern according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.
  • FIG. 1 is a view showing an embodiment of the apparatus for forming a roll surface pattern according to the present invention and thereby forming a pattern on the surface of the roll.
  • FIG. 2 is a cross- And the operation thereof.
  • One embodiment of the apparatus 100 for forming a roll surface pattern according to the present invention may include a laser irradiation unit 200 and a transfer unit 300.
  • the laser irradiating unit 200 may be made of a plurality of pattern forming lasers having a predetermined interval from each other.
  • the laser irradiation unit 200 can irradiate at least a part of the surface of the rotating roll RL as shown in Fig. 1, with a plurality of pattern forming lasers having a predetermined interval from each other.
  • a predetermined pattern can be formed on the surface of the roll (RL).
  • a hairline pattern may be formed on the surface of the roll (RL).
  • the interval of the hairline pattern may be several micrometers.
  • the pattern formed on the surface of the roll RL by the laser irradiation unit 200 is not particularly limited, and any pattern can be formed.
  • the roll RL is rotatably supported by bearings (not shown) on both sides for rotation, and one end is connected to a motor (not shown) and rotated by driving of the motor.
  • the roll RL on which a predetermined pattern is formed on the surface by the laser irradiation unit 200 may be a work roll of the rolling mill RM.
  • the roll RL on which a predetermined pattern is formed on the surface by the laser irradiation unit 200 may be a rolling mill RM positioned last in the process direction among a plurality of rolling mills RM, May be a work roll (not shown) of a rolling mill RM further positioned after the rolling mill RM.
  • a slab (not shown) made in a potter (not shown) of a casting process (not shown) of a steelworks can be rolled through a plurality of rolling mills RM to become a metal plate.
  • a predetermined pattern is formed on the metal plate by a work roll on which a predetermined pattern of a rolling mill RM positioned last in the plurality of rolling mills RM and a rolling mill RM located further after a plurality of rolling mills RM is formed Can be transferred.
  • the roll RL on which a predetermined pattern is formed on the surface by the laser irradiation unit 200 is not limited to the work roll of the rolling mill RM, but may be any roll RL.
  • the laser irradiation unit 200 may include a laser oscillator 210 and a laser diverging lens 220 as shown in FIG.
  • the laser oscillator 210 can oscillate the laser.
  • the laser oscillator 210 is not particularly limited, and any known laser oscillator can be used as long as it can oscillate the laser.
  • the laser diverging lens 220 may be branched to a plurality of pattern forming lasers having a predetermined distance from each other.
  • the laser diverging lens 220 may be provided with an uneven surface 221 as shown in FIG.
  • the two laser diverging lenses 220 having the uneven surface 221 can be positioned so that the uneven surfaces 221 face each other.
  • the optical path is diffracted as it passes the uneven surface 221 of the laser diverging lens 220 And can be branched into a plurality of pattern forming lasers having a predetermined spacing from each other.
  • the shape and the configuration of the uneven surface 221 of the laser diverging lens 220 are not particularly limited and the optical path of the laser incident on the laser diverging lens 220 is diffracted so that a plurality of pattern forming lasers Any shape and configuration that can be made is possible.
  • the laser irradiation unit 200 may further include a collimator lens 230.
  • the collimator lens 230 may be provided between the laser oscillator 210 and the laser divergence lens 220 as shown in FIG.
  • the collimator lens 230 can prevent the laser oscillated by the laser oscillator 210 from diffusing while proceeding. Accordingly, most of the laser emitted from the laser oscillator 210 can be incident on the laser branching lens 220.
  • the intervals of the patterns formed on the surface of the roll RL can be adjusted by controlling the irradiation angles of the plurality of pattern forming lasers irradiated by the laser irradiation unit 200. That is, the central pattern forming laser among the plurality of pattern forming lasers can be irradiated at a larger angle than the perpendicular angle or not at right angles to the surface of the roll (RL). Thereby, the interval of the patterns formed on the surface of the roll (RL) can be reduced as compared with when irradiated at right angles.
  • the laser irradiation unit 200 may be rotatably provided in the transfer unit 300.
  • the irradiation angle of the plurality of pattern forming lasers irradiated by the laser irradiation unit 200 can be adjusted by the rotation of the laser irradiation unit 200 in the transfer unit 300.
  • the laser irradiation unit 200 is provided in the transfer unit 300 and is movably provided in a later-described movement guide 310, which is located at a predetermined distance from the roll RL in the lengthwise direction of the roll RL And may be rotatably provided on the movable frame 320.
  • the movable frame 320 may be provided with a rotation drive unit (not shown) including a rotation drive motor (not shown) for rotating the laser irradiation unit 200.
  • a configuration in which the laser irradiation unit 200 is rotatably provided in the transfer unit 300 and the laser irradiation unit 200 is rotated in the transfer unit 300 is not particularly limited, and any well-known configuration is possible.
  • the length of the pattern formed on the surface of the roll RL can be adjusted by turning on / off the laser oscillator 210 of the laser irradiation unit 200.
  • a plurality of pattern forming lasers irradiated by the laser irradiation unit 200 and having a predetermined interval from each other can be irradiated onto the surface of the rotating roll RL. Therefore, by controlling the rotation speed of the roll RL and the ON / OFF state of the laser oscillator 210, a pattern of a predetermined desired length can be formed on the surface of the roll RL.
  • the transfer unit 300 can cause the laser irradiation unit 200 to move in the longitudinal direction of the roll RL. 1, the laser irradiation unit 200 irradiates the surface of the rotating roll RL from the laser irradiation unit 200 with a plurality of pattern forming lasers, 300 in the longitudinal direction of the roll RL. Thereby, a predetermined pattern can be formed on the entire surface of the roll (RL) or a desired portion of the surface of the roll (RL).
  • the transfer unit 300 may include a moving guide 310 and a moving frame 320 as shown in FIG.
  • the movement guide 310 may be positioned at a predetermined distance from the roll RL in the longitudinal direction of the roll RL.
  • the moving frame 320 may be movably provided in the moving guide 310.
  • a rack gear 311 may be formed on one side of the movement guide 310 as shown in FIG.
  • the movable frame 320 may be provided with a pinion gear (not shown) engaged with the rack gear 311.
  • the moving frame 320 may be provided with a moving driving unit (not shown) including a moving driving motor (not shown) connected to the pinion gear.
  • the moving frame 320 may be provided with a laser irradiation unit 200.
  • the laser irradiation unit 200 may be rotatably provided in the movable frame 320, for example, as described above.
  • the configuration of the transfer unit 300 is not particularly limited, and any known configuration can be used as far as the laser irradiation unit 200 is configured to move in the longitudinal direction of the roll RL.
  • FIG. 3 a method of manufacturing a metal plate according to the present invention will be described with reference to FIGS. 3 and 4.
  • FIG. 3 is a view showing an embodiment of a method for manufacturing a metal plate according to the present invention
  • FIG. 4 is a view showing a process to which an embodiment of a method for manufacturing a metal plate according to the present invention is applied.
  • An embodiment of the method for manufacturing a metal plate according to the present invention may include a rolling step (S100), a pattern forming step (S200) and a heat treatment step (S300) as shown in FIG.
  • a slab or a metal plate produced in the performance machine of the steel making process can be rolled to form a metal plate having a predetermined width and thickness.
  • a slab or a metal plate may be rolled through a plurality of rolling mills RM to become a metal plate having a predetermined width and thickness.
  • a slab or a metal plate may be rolled several times in one rolling mill RM to form a metal plate having a predetermined width and thickness.
  • a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by a roll RL having a predetermined pattern formed on its surface.
  • a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by a roll RL having a predetermined pattern formed on its surface by the roll surface pattern forming apparatus 100 described above.
  • a hairline pattern may be formed by the roll surface pattern forming apparatus (100).
  • the hair line pattern on the surface of the roll (RL) is transferred to the metal plate having a predetermined width and thickness, and a hair line pattern can be formed on the metal plate having a predetermined width and thickness.
  • a hair line pattern is formed on a metal plate having a predetermined width and thickness, the appearance of the metal plate is good and light is not reflected.
  • the predetermined pattern formed on the roll (RL) surface by the roll surface pattern forming apparatus 100 is not limited to the hairline pattern, and any pattern can be formed.
  • the roll RL having a predetermined pattern formed on its surface is positioned further downstream of the rolling mill RM or the plurality of mills RM located last in the process direction among the plurality of rolling mills RM as shown in FIG. It may be a work roll of a rolling mill RM.
  • the conventional rolling mill RM for the rolling step S100 or the pattern forming step S200 can be performed by adding only one rolling mill RM.
  • a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by a work roll of a rolling mill RM having a predetermined pattern formed on its surface.
  • a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by replacing a roll (RL) having a predetermined pattern formed on its surface in the final rolling of the metal plate with a work roll of the rolling mill RM.
  • the metal plate on which a predetermined pattern is formed can be heat-treated.
  • the metal plate on which the predetermined pattern is formed can be annealed.
  • a metal plate on which a predetermined pattern is formed can be subjected to a brass annealing heat treatment in the heat treatment step (S300).
  • a predetermined pattern is formed on a metal plate before the heat treatment of the metal plate. Therefore, a passive film can be formed by heat treatment on a predetermined pattern formed on the metal plate. Therefore, by forming a predetermined pattern on the metal plate as in the conventional metal plate manufacturing method of forming a predetermined pattern on the metal plate after heat-treating the metal plate, the passive film can be prevented from being damaged. have.
  • the apparatus for forming a roll surface pattern and the method for producing a metal plate according to the present invention it is possible to form a predetermined pattern on a roll surface by a plurality of pattern forming lasers at predetermined intervals, Even if a predetermined pattern is formed on the metal plate, the corrosion resistance of the metal plate can be improved without deteriorating.
  • the roll surface pattern forming apparatus and the metal plate manufacturing method described above are not limited to the configurations of the embodiments described above, but the embodiments may be modified such that all or some of the embodiments are selectively And may be configured in combination.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Laser Beam Processing (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)

Abstract

A roll pattern formation device and a metal plate manufacturing method are disclosed. The roll pattern formation device according to one embodiment of the present invention can comprise: a laser emission unit for making an oscillating laser beam into a plurality of pattern formation laser beams having predetermined intervals therebetween, and emitting the same at at least a portion of the surface of a rotating roll so as to form a predetermined pattern on the surface of the roll; and a transfer unit for moving the laser emission unit in the longitudinal direction of the roll.

Description

롤표면 패턴형성장치 및 금속판 제조방법Roll surface pattern forming apparatus and method of manufacturing a metal plate
본 발명은 롤 표면에 소정의 패턴을 형성하는 롤표면 패턴형성장치와 소정의 패턴이 형성된 롤을 사용하여 소정의 패턴이 형성된 금속판을 만드는 금속판 제조방법에 관한 것이다.The present invention relates to a roll surface pattern forming apparatus for forming a predetermined pattern on a roll surface and a metal plate manufacturing method for forming a metal plate on which a predetermined pattern is formed by using a roll having a predetermined pattern.
강판 등의 금속판에는 소정의 패턴이 형성될 수 있다. 예컨대, 금속판에는 미려함과 빛이 반사되지 않도록 하기 위해서 헤어라인 패턴이 형성될 수 있다.A predetermined pattern may be formed on a metal plate such as a steel plate. For example, a hairline pattern may be formed on the metal plate to prevent the reflection of light and the beauty.
이와 같이 금속판에 소정의 패턴이 형성되도록 하기 위해서, 금속판을 만들기 위해서 사용되는 롤의 표면에 소정의 패턴이 형성되도록 한다.In order to form a predetermined pattern on the metal plate, a predetermined pattern is formed on the surface of the roll used for making the metal plate.
종래에는 롤의 표면에 소정의 패턴이 형성되도록 하기 위해서, 연마석이나 연마벨트 등을 사용하거나, 롤의 표면에 다수의 돌기를 형성하였다. 이러한 종래의 경우에는 롤 표면에 형성되는 패턴의 길이나 모양 등을 제어하기 어려우며, 표면에 패턴의 형성된 롤로 금속판에 패턴을 형성할 때 충격이 발생하거나 사행현상이 발생하였다.Conventionally, in order to form a predetermined pattern on the surface of a roll, a grinding stone, an abrasive belt or the like is used, or a plurality of projections are formed on the surface of the roll. In such a conventional case, it is difficult to control the length and shape of the pattern formed on the roll surface, and when the pattern is formed on the metal plate by the roll having the pattern formed on the surface, shock or meandering occurs.
또한, 종래에는 금속판을 열처리하여 부동태 피막이 형성된 상태에서, 표면에 패턴이 형성된 롤로 금속판에 패턴을 형성하여 부동태 피막이 손상되었다. 이에 의해서, 금속판의 내식성이 저하되었다.In addition, conventionally, a passive film is damaged by forming a pattern on a metal plate with a roll having a pattern formed on its surface in a state where a passive film is formed by heat treatment of the metal plate. As a result, the corrosion resistance of the metal plate was deteriorated.
본 발명은 상기와 같은 종래에서 발생하는 요구 또는 문제들 중 적어도 어느 하나를 인식하여 이루어진 것이다.The present invention is realized by recognizing at least any one of the above-mentioned conventional needs or problems.
본 발명의 목적의 일 측면은 서로 소정간격을 복수개의 패턴형성용 레이저로 롤 표면에 소정의 패턴이 형성되도록 하며 소정의 패턴이 표면에 형성된 롤로 금속판에 소정의 패턴을 형성하여도 금속판의 내식성이 저하되지 않고 향상되도록 하는 것이다.It is an object of the present invention to provide a method for forming a predetermined pattern on a roll surface by a plurality of pattern forming lasers at predetermined intervals and forming a predetermined pattern on a metal plate by a roll having a predetermined pattern formed on a surface thereof, So as not to deteriorate.
상기 과제들 중 적어도 하나의 과제를 실현하기 위한 일실시 형태와 관련된 롤표면 패턴형성장치와 금속판 제조방법은 다음과 같은 특징을 포함할 수 있다.A roll surface pattern forming apparatus and a metal plate manufacturing method according to an embodiment for realizing at least one of the above problems may include the following features.
본 발명의 일실시 형태에 따른 롤표면 패턴형성장치는 발진된 레이저를 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저로 만들고 회전하는 롤 표면의 적어도 일부에 조사하여 상기 롤 표면에 소정의 패턴이 형성되도록 하는 레이저조사유닛; 및 상기 레이저조사유닛이 상기 롤의 길이방향으로 이동하도록 하는 이송유닛; 을 포함할 수 있다.The apparatus for forming a roll surface pattern according to an embodiment of the present invention includes a plurality of pattern forming lasers each having an oscillated laser at a predetermined interval and irradiating at least a part of the rotating roll surface to form a predetermined pattern on the roll surface A laser irradiating unit for irradiating the laser beam; And a transfer unit for causing the laser irradiation unit to move in the longitudinal direction of the roll; . ≪ / RTI >
이 경우, 상기 레이저조사유닛은 레이저를 발진하는 레이저발진기와, 상기 레이저발진기에서 발진된 레이저가 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저로 분기되도록 하는 레이저분기렌즈를 포함할 수 있다.In this case, the laser irradiation unit may include a laser oscillator for oscillating a laser, and a laser diverging lens for diverging a plurality of laser beams emitted from the laser oscillator to a plurality of pattern forming lasers having a predetermined distance therebetween.
또한, 상기 레이저분기렌즈는 요철면이 형성되어 입사된 레이저가 회절되어 복수개로 분기되도록 할 수 있다.Further, the laser diverging lens may have an uneven surface so that the incident laser may be diffracted and branched into a plurality of laser beams.
그리고, 상기 레이저조사유닛은 상기 레이저발진기와 레이저분기렌즈 사이에 구비되며 상기 레이저발진기에서 발진된 레이저가 진행하면서 확산되는 것을 방지하는 콜리메이트렌즈를 더 포함할 수 있다.The laser irradiation unit may further include a collimator lens disposed between the laser oscillator and the laser diverging lens, the collimator lens preventing diffusion of the laser oscillated by the laser oscillator.
또한, 상기 레이저조사유닛에서 조사되는 복수개의 패턴형성용 레이저의 조사각도를 조절하여 상기 롤 표면에 형성되는 패턴의 간격을 조절할 수 있다.In addition, it is possible to control the intervals of the patterns formed on the roll surface by adjusting the irradiation angles of the plurality of pattern forming lasers irradiated by the laser irradiation unit.
그리고, 상기 레이저조사유닛은 상기 이송유닛에 회전가능하게 구비되고, 상기 레이저조사유닛의 상기 이송유닛에서의 회전으로 상기 레이저조사유닛에서 조사되는 복수개의 패턴형성 레이저의 조사각도를 조절할 수 있다.The laser irradiation unit is rotatably provided in the transfer unit, and the irradiation angle of the plurality of pattern forming lasers irradiated by the laser irradiation unit can be adjusted by rotation of the laser irradiation unit of the laser irradiation unit.
또한, 상기 레이저조사유닛에 포함되는 레이저발진기를 온오프하여 상기 롤 표면에 형성되는 패턴의 길이를 조절할 수 있다.Also, the length of the pattern formed on the surface of the roll can be adjusted by turning on and off the laser oscillator included in the laser irradiation unit.
본 발명의 일실시 형태에 따른 금속판 제조방법은 슬래브 또는 금속판을 압연하여 소정 너비와 두께를 가지는 금속판으로 만드는 압연단계; 표면에 소정의 패턴이 형성된 롤로, 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성하는 패턴형성단계; 및 소정의 패턴이 형성된 금속판을 열처리하는 열처리단계; 를 포함할 수 있다.A method of manufacturing a metal plate according to an embodiment of the present invention includes: a rolling step of rolling a slab or a metal plate into a metal plate having a predetermined width and thickness; A pattern forming step of forming a predetermined pattern on a metal plate having a predetermined width and thickness with a roll having a predetermined pattern formed on its surface; And a heat treatment step of heat-treating the metal plate on which the predetermined pattern is formed; . ≪ / RTI >
이 경우, 상기 패턴형성단계에서는 전술한 롤표면 패턴형성장치에 의해서 표면에 소정의 패턴이 형성된 롤로, 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성할 수 있다.In this case, in the pattern formation step, a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by a roll having a predetermined pattern formed on its surface by the above-described roll surface pattern forming apparatus.
또한, 상기 롤 표면에는 상기 롤표면 패턴형성장치에 의해서 헤어라인 패턴이 형성될 수 있다.A hairline pattern may be formed on the roll surface by the roll surface pattern forming apparatus.
그리고, 상기 압연단계에서는 복수개의 압연기에 의해서 슬래브 또는 금속판을 압연하여 소정 너비와 두께를 가지는 금속판으로 만들며, 표면에 소정의 패턴이 형성된 상기 롤은 복수개의 압연기 중 공정방향으로 마지막에 위치하는 압연기나 복수개의 상기 압연기 다음에 추가로 위치하는 압연기의 워크롤이고, 상기 패턴형성단계에서는 표면에 소정의 패턴이 형성된 상기 워크롤에 의해서 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성할 수 있다.In the rolling step, a slab or a metal plate is rolled by a plurality of rolling mills to form a metal plate having a predetermined width and thickness. The roll having a predetermined pattern formed on the surface thereof is placed in a rolling mill And a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by the work roll having a predetermined pattern formed on its surface in the pattern formation step.
또한, 상기 압연단계에서는 하나의 압연기에서 슬래브 또는 금속판을 복수번 압연하여 소정 너비와 두께를 가지는 금속판으로 만들며, 상기 패턴형성단계에서는 상기 압연기에 의한 슬래브 또는 금속판의 마지막 압연에서 표면에 소정의 패턴이 형성된 상기 롤을 상기 압연기의 워크롤과 교체하여 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성할 수 있다.In the rolling step, the slab or the metal plate is rolled several times in one rolling machine to form a metal plate having a predetermined width and thickness. In the pattern forming step, a predetermined pattern is formed on the surface in the last rolling of the slab or the metal plate by the rolling machine The formed roll may be replaced with a work roll of the rolling mill to form a predetermined pattern on a metal plate having a predetermined width and thickness.
그리고, 상기 열처리단계에서는 소정의 패턴이 형성된 금속판을 소둔열처리하거나 광휘소둔열처리할 수 있다.In the heat treatment step, the metal plate on which the predetermined pattern is formed may be subjected to annealing heat treatment or brass annealing heat treatment.
이상에서와 같이 본 발명의 실시예에 따르면, 서로 소정간격을 복수개의 패턴형성용 레이저로 롤 표면에 소정의 패턴이 형성되도록 하며 소정의 패턴이 표면에 형성된 롤로 금속판에 소정의 패턴을 형성하여도 금속판의 내식성이 저하되지 않고 향상되도록 할 수 있다.As described above, according to the embodiment of the present invention, even when a predetermined pattern is formed on a roll surface by a plurality of pattern forming lasers at predetermined intervals and a predetermined pattern is formed on the metal plate by a roll having a predetermined pattern formed on the surface The corrosion resistance of the metal sheet can be improved without deteriorating.
도1은 본 발명에 따른 롤표면 패턴형성장치의 일실시예와 이에 의해서 롤표면에 패턴을 형성하는 것을 나타내는 도면이다.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an embodiment of a roll surface pattern forming apparatus according to the present invention and thereby forming a pattern on a roll surface. Fig.
도2는 본 발명에 따른 롤표면 패턴형성장치의 일실시예의 레이저조사유닛의 구성과 이의 작동을 나타내는 도면이다.Fig. 2 is a diagram showing the configuration of a laser irradiation unit and its operation in an embodiment of the apparatus for forming a roll surface pattern according to the present invention.
도3은 본 발명에 따른 금속판 제조방법의 일실시예를 나타내는 도면이다.3 is a view showing an embodiment of a method for manufacturing a metal plate according to the present invention.
도4는 본 발명에 따른 금속판 제조방법의 일실시예가 적용된 공정을 나타내는 도면이다.4 is a view showing a process to which an embodiment of the method for manufacturing a metal plate according to the present invention is applied.
상기와 같은 본 발명의 특징들에 대한 이해를 돕기 위하여, 이하 본 발명의 실시예와 관련된 롤표면 패턴형성장치와 금속판 제조방법에 대하여 보다 상세하게 설명하도록 하겠다.In order to facilitate understanding of the features of the present invention, a roll surface pattern forming apparatus and a method of manufacturing a metal plate according to embodiments of the present invention will be described in detail.
이하 설명되는 실시예들은 본 발명의 기술적인 특징을 이해시키기에 가장 적합한 실시예들을 기초로 하여 설명될 것이며, 설명되는 실시예들에 의해 본 발명의 기술적인 특징이 제한되는 것이 아니라, 이하 설명되는 실시예들과 같이 본 발명이 구현될 수 있다는 것을 예시하는 것이다. 따라서, 본 발명은 아래 설명된 실시예들을 통해 본 발명의 기술 범위 내에서 다양한 변형 실시가 가능하며, 이러한 변형 실시예는 본 발명의 기술 범위 내에 속한다 할 것이다. 그리고, 이하 설명되는 실시예의 이해를 돕기 위하여 첨부된 도면에 기재된 부호에 있어서, 각 실시예에서 동일한 작용을 하게 되는 구성요소 중 관련된 구성요소는 동일 또는 연장 선상의 숫자로 표기하였다.The embodiments described below will be described on the basis of embodiments best suited to understand the technical characteristics of the present invention and the technical features of the present invention are not limited by the embodiments described, It is to be understood that the invention can be practiced with embodiments. Therefore, it is intended that the present invention covers the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. In order to facilitate the understanding of the embodiments described below, in the reference numerals shown in the accompanying drawings, among the constituent elements that perform the same function in the respective embodiments, the related constituent elements are indicated by the same or an extension line number.
롤표면 패턴형성장치Roll surface pattern forming device
이하, 도1과 도2를 참조로 하여 본 발명에 따른 롤표면 패턴형성장치의 일실시예에 대하여 설명한다.Hereinafter, an apparatus for forming a roll surface pattern according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.
도1은 본 발명에 따른 롤표면 패턴형성장치의 일실시예와 이에 의해서 롤표면에 패턴을 형성하는 것을 나타내는 도면이며, 도2는 본 발명에 따른 롤표면 패턴형성장치의 일실시예의 레이저조사유닛의 구성과 이의 작동을 나타내는 도면이다.FIG. 1 is a view showing an embodiment of the apparatus for forming a roll surface pattern according to the present invention and thereby forming a pattern on the surface of the roll. FIG. 2 is a cross- And the operation thereof.
본 발명에 따른 롤표면 패턴형성장치(100)의 일실시예는 레이저조사유닛(200)과, 이송유닛(300)을 포함할 수 있다.One embodiment of the apparatus 100 for forming a roll surface pattern according to the present invention may include a laser irradiation unit 200 and a transfer unit 300.
레이저조사유닛(200)은 도2에 도시된 바와 같이 발진된 레이저를 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저로 만들 수 있다. 그리고, 레이저조사유닛(200)은 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저를 도1에 도시된바와 같이 회전하는 롤(RL) 표면의 적어도 일부에 조사할 수 있다.As shown in FIG. 2, the laser irradiating unit 200 may be made of a plurality of pattern forming lasers having a predetermined interval from each other. The laser irradiation unit 200 can irradiate at least a part of the surface of the rotating roll RL as shown in Fig. 1, with a plurality of pattern forming lasers having a predetermined interval from each other.
이에 의해서, 롤(RL) 표면에는 소정의 패턴이 형성될 수 있다. 예컨대, 롤(RL) 표면에는 헤어라인 패턴이 형성될 수 있다. 이 경우, 헤어라인 패턴의 간격이 수 마이크로 미터가 되도록 할 수 있다. 그러나, 레이저조사유닛(200)에 의해서 롤(RL) 표면에 형성되는 패턴은 특별히 한정되지 않고, 어떠한 패턴이라도 형성될 수 있다.Thereby, a predetermined pattern can be formed on the surface of the roll (RL). For example, a hairline pattern may be formed on the surface of the roll (RL). In this case, the interval of the hairline pattern may be several micrometers. However, the pattern formed on the surface of the roll RL by the laser irradiation unit 200 is not particularly limited, and any pattern can be formed.
한편, 롤(RL)은 회전을 위해서, 양측이 베어링(도시되지 않음)에 의해서 회전지지되고 일측단부는 모터(도시되지 않음)에 연결되어 모터의 구동으로 회전할 수 있다.On the other hand, the roll RL is rotatably supported by bearings (not shown) on both sides for rotation, and one end is connected to a motor (not shown) and rotated by driving of the motor.
레이저조사유닛(200))에 의해서 표면에 소정의 패턴이 형성되는 롤(RL)은 압연기(RM)의 워크롤일 수 있다. 예컨대 도4에 도시된 바와 같이 레이저조사유닛(200)에 의해서 표면에 소정의 패턴이 형성되는 롤(RL)은 복수개의 압연기(RM) 중 공정방향으로 마지막에 위치하는 압연기(RM)나, 복수개의 압연기(RM) 다음에 추가로 위치하는 압연기(RM)의 워크롤(도시되지 않음)일 수 있다.And the roll RL on which a predetermined pattern is formed on the surface by the laser irradiation unit 200 may be a work roll of the rolling mill RM. For example, as shown in FIG. 4, the roll RL on which a predetermined pattern is formed on the surface by the laser irradiation unit 200 may be a rolling mill RM positioned last in the process direction among a plurality of rolling mills RM, May be a work roll (not shown) of a rolling mill RM further positioned after the rolling mill RM.
제철소의 연주공정(도시되지 않음)의 연주기(도시되지 않음)에서 만들어진 슬래브(도시되지 않음)는 복수개의 압연기(RM)를 거치면서 압연되어 금속판으로 될 수 있다. 그리고, 복수개의 압연기(RM) 중 마지막에 위치하는 압연기(RM)나 복수개의 압연기(RM) 다음에 추가로 위치하는 압연기(RM)의 소정의 패턴이 형성된 워크롤에 의해서 금속판에 소정의 패턴이 전사될 수 있다.A slab (not shown) made in a potter (not shown) of a casting process (not shown) of a steelworks can be rolled through a plurality of rolling mills RM to become a metal plate. A predetermined pattern is formed on the metal plate by a work roll on which a predetermined pattern of a rolling mill RM positioned last in the plurality of rolling mills RM and a rolling mill RM located further after a plurality of rolling mills RM is formed Can be transferred.
그러나, 레이저조사유닛(200)에 의해서 표면에 소정의 패턴이 형성되는 롤(RL)은 압연기(RM)의 워크롤에 한정되지 않고, 어떠한 롤(RL)이라도 가능하다.However, the roll RL on which a predetermined pattern is formed on the surface by the laser irradiation unit 200 is not limited to the work roll of the rolling mill RM, but may be any roll RL.
레이저조사유닛(200)은 도2에 도시된 바와 같이 레이저발진기(210)와, 레이저분기렌즈(220)를 포함할 수 있다.The laser irradiation unit 200 may include a laser oscillator 210 and a laser diverging lens 220 as shown in FIG.
레이저발진기(210)는 레이저를 발진할 수 있다. 레이저발진기(210)는 특별히 한정되지 않고, 레이저를 발진할 수 있는 것이라면 주지의 어떠한 것이라도 가능하다.The laser oscillator 210 can oscillate the laser. The laser oscillator 210 is not particularly limited, and any known laser oscillator can be used as long as it can oscillate the laser.
레이저분기렌즈(220)는 레이저발진기(210)에서 발진된 레이저가 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저로 분기되도록 할 수 있다.The laser diverging lens 220 may be branched to a plurality of pattern forming lasers having a predetermined distance from each other.
이를 위해서, 레이저분기렌즈(220)는 도2에 도시된 바와 같이 요철면(221)이 형성될 수 있다. 그리고, 요철면(221)이 형성된 2개의 레이저분기렌즈(220)가 요철면(221)이 서로 마주보도록 위치할 수 있다. 이러한 상태에서, 레이저발진기(210)에서 발진된 레이저가 도2에 도시된 바와 같이 레이저분기렌즈(220)에 입사되면, 레이저분기렌즈(220)의 요철면(221)을 지나면서 광로가 회절되는 것에 의해서 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저로 분기될 수 있다.For this purpose, the laser diverging lens 220 may be provided with an uneven surface 221 as shown in FIG. The two laser diverging lenses 220 having the uneven surface 221 can be positioned so that the uneven surfaces 221 face each other. In this state, when the laser oscillated by the laser oscillator 210 is incident on the laser diverging lens 220 as shown in FIG. 2, the optical path is diffracted as it passes the uneven surface 221 of the laser diverging lens 220 And can be branched into a plurality of pattern forming lasers having a predetermined spacing from each other.
레이저분기렌즈(220)의 요철면(221)의 형상과 구성은 특별히 한정되지 않고, 레이저분기렌즈(220)에 입사된 레이저의 광로가 회절되어 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저로 분기될 수 있는 형상과 구성이라면 어떠한 형상과 구성이라도 가능하다.The shape and the configuration of the uneven surface 221 of the laser diverging lens 220 are not particularly limited and the optical path of the laser incident on the laser diverging lens 220 is diffracted so that a plurality of pattern forming lasers Any shape and configuration that can be made is possible.
레이저조사유닛(200)은 콜리메이트렌즈(230)를 더 포함할 수 있다. 콜리메이트렌즈(230)는 도2에 도시된 바와 같이 레이저발진기(210)와 레이저분기렌즈(220) 사이에 구비될 수 있다. 그리고, 콜리메이트렌즈(230)는 레이저발진기(210)에서 발진된 레이저가 진행하면서 확산되는 것을 방지할 수 있다. 이에 의해서, 레이저발진기(210)에서 발진된 대부분의 레이저가 레이저분기렌즈(220)에 입사될 수 있다.The laser irradiation unit 200 may further include a collimator lens 230. The collimator lens 230 may be provided between the laser oscillator 210 and the laser divergence lens 220 as shown in FIG. In addition, the collimator lens 230 can prevent the laser oscillated by the laser oscillator 210 from diffusing while proceeding. Accordingly, most of the laser emitted from the laser oscillator 210 can be incident on the laser branching lens 220.
한편, 레이저조사유닛(200)에서 조사되는 복수개의 패턴형성용 레이저의 조사각도를 조절하여 롤(RL) 표면에 형성되는 패턴의 간격을 조절할 수 있다. 즉, 복수개의 패턴형성용 레이저 중 중앙의 패턴형성용 레이저가 롤(RL) 표면에 직각으로 조사되지 않고 직각보다 작게 또는 직각보다 크게 조사되도록 할 수 있다. 이에 의해서, 롤(RL) 표면에 형성되는 패턴의 간격은 직각으로 조사될 때보다 줄어들 수 있다.On the other hand, the intervals of the patterns formed on the surface of the roll RL can be adjusted by controlling the irradiation angles of the plurality of pattern forming lasers irradiated by the laser irradiation unit 200. That is, the central pattern forming laser among the plurality of pattern forming lasers can be irradiated at a larger angle than the perpendicular angle or not at right angles to the surface of the roll (RL). Thereby, the interval of the patterns formed on the surface of the roll (RL) can be reduced as compared with when irradiated at right angles.
이를 위해서, 레이저조사유닛(200)은 이송유닛(300)에 회전가능하게 구비될 수 있다. 그리고, 레이저조사유닛(200)의 이송유닛(300)에서의 회전으로, 레이저조사유닛(200)에서 조사되는 복수개의 패턴형성 레이저의 조사각도를 조절할 수 있다.For this purpose, the laser irradiation unit 200 may be rotatably provided in the transfer unit 300. [ The irradiation angle of the plurality of pattern forming lasers irradiated by the laser irradiation unit 200 can be adjusted by the rotation of the laser irradiation unit 200 in the transfer unit 300.
예컨대, 레이저조사유닛(200)은 이송유닛(300)에 포함되며 롤(RL)의 길이방향으로 길게 롤(RL)과 소정 거리 이격되어 위치하는 후술할 이동가이드(310)에 이동가능하게 구비되는 이동프레임(320)에 회전가능하게 구비될 수 있다. 그리고, 이동프레임(320)에는 레이저조사유닛(200)을 회전시키는 회전구동모터(도시되지 않음)를 포함하는 회전구동유닛(도시되지 않음)이 구비될 수 있다. 그리고, 회전구동유닛에 의해서 레이저조사유닛(200)을 소정 각도 일측 또는 타측 방향으로 회전시키는 것에 의해서 레이저조사유닛(200)에서 조사되는 복수개의 패턴형성 레이저의 조사각도를 조절할 수 있다.For example, the laser irradiation unit 200 is provided in the transfer unit 300 and is movably provided in a later-described movement guide 310, which is located at a predetermined distance from the roll RL in the lengthwise direction of the roll RL And may be rotatably provided on the movable frame 320. The movable frame 320 may be provided with a rotation drive unit (not shown) including a rotation drive motor (not shown) for rotating the laser irradiation unit 200. By rotating the laser irradiation unit 200 in one direction or the other direction by the rotation drive unit, the irradiation angle of the plurality of pattern formation lasers irradiated by the laser irradiation unit 200 can be adjusted.
그러나, 레이저조사유닛(200)이 이송유닛(300)에 회전가능하게 구비되며 레이저조사유닛(200)을 이송유닛(300)에서 회전시키는 구성은 특별히 한정되지 않고, 주지의 어떠한 구성이라도 가능하다.However, a configuration in which the laser irradiation unit 200 is rotatably provided in the transfer unit 300 and the laser irradiation unit 200 is rotated in the transfer unit 300 is not particularly limited, and any well-known configuration is possible.
한편, 레이저조사유닛(200)의 레이저발진기(210)를 온오프하여 롤(RL) 표면에 형성되는 패턴의 길이를 조절할 수 있다. 레이저조사유닛(200)에서 조사되는 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저는 회전하는 롤(RL) 표면에 조사될 수 있다. 그러므로, 롤(RL)의 회전속도와 레이저발진기(210)의 온오프를 조절하는 것에 의해서, 롤(RL) 표면에 소정의 원하는 길이의 패턴이 형성되도록 할 수 있다.On the other hand, the length of the pattern formed on the surface of the roll RL can be adjusted by turning on / off the laser oscillator 210 of the laser irradiation unit 200. A plurality of pattern forming lasers irradiated by the laser irradiation unit 200 and having a predetermined interval from each other can be irradiated onto the surface of the rotating roll RL. Therefore, by controlling the rotation speed of the roll RL and the ON / OFF state of the laser oscillator 210, a pattern of a predetermined desired length can be formed on the surface of the roll RL.
이송유닛(300)은 레이저조사유닛(200)이 롤(RL)의 길이방향으로 이동하도록 할 수 있다. 레이저조사유닛(200)으로부터 회전하는 롤(RL) 표면에 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저를 조사하는 상태에서, 도1에 도시된 바 와 같이 레이저조사유닛(200)이 이송유닛(300)에 의해서 롤(RL)의 길이방향으로 이동하도록 할 수 있다. 이에 의해서, 롤(RL) 표면 전체 또는 롤(RL) 표면의 원하는 부분에 소정의 패턴이 형성되도록 할 수 있다.The transfer unit 300 can cause the laser irradiation unit 200 to move in the longitudinal direction of the roll RL. 1, the laser irradiation unit 200 irradiates the surface of the rotating roll RL from the laser irradiation unit 200 with a plurality of pattern forming lasers, 300 in the longitudinal direction of the roll RL. Thereby, a predetermined pattern can be formed on the entire surface of the roll (RL) or a desired portion of the surface of the roll (RL).
이송유닛(300)은 도1에 도시된 바와 같이 이동가이드(310)와, 이동프레임(320)을 포함할 수 있다. 이동가이드(310)는 롤(RL)의 길이방향으로 길게 롤(RL)과 소정 거리 이격되어 위치할 수 있다.The transfer unit 300 may include a moving guide 310 and a moving frame 320 as shown in FIG. The movement guide 310 may be positioned at a predetermined distance from the roll RL in the longitudinal direction of the roll RL.
이동프레임(320)은 이동가이드(310)에 이동가능하게 구비될 수 있다. 예컨대, 이동가이드(310)에는 도1에 도시된 바와 같이 일면에 랙기어(311)가 형성될 수 있다. 그리고, 이동프레임(320)에는 랙기어(311)에 맞물리는 피니언기어(도시되지 않음)가 구비될 수 있다. 또한, 이동프레임(320)에는 피니언기어와 연결되는 이동구동모터(도시되지 않음)를 포함하는 이동구동유닛(도시되지 않음)이 구비될 수 있다. 그리고, 이동구동유닛의 이동구동모터의 구동에 의해서 피니언기어가 일측 또는 타측으로 회전하는 것으로, 이동프레임(320)이 이동가이드(310)를 따라 일측 또는 타측으로 이동할 수 있다. 이에 따라, 이동프레임(320)에 구비되는 레이저조사유닛(200)이 롤(RL)의 길이방향으로 일측 또는 타측으로 이동할 수 있다.The moving frame 320 may be movably provided in the moving guide 310. [ For example, a rack gear 311 may be formed on one side of the movement guide 310 as shown in FIG. The movable frame 320 may be provided with a pinion gear (not shown) engaged with the rack gear 311. Further, the moving frame 320 may be provided with a moving driving unit (not shown) including a moving driving motor (not shown) connected to the pinion gear. By moving the pinion gear to one side or the other side by the driving of the moving driving motor of the moving driving unit, the moving frame 320 can move to one side or the other side along the moving guide 310. Accordingly, the laser irradiation unit 200 provided in the moving frame 320 can move to one side or the other side in the longitudinal direction of the roll RL.
이동프레임(320)에는 레이저조사유닛(200)이 구비될 수 있다. 레이저조사유닛(200)은, 예컨대 전술한 바와 같이 이동프레임(320)에 회전가능하게 구비될 수 있다.The moving frame 320 may be provided with a laser irradiation unit 200. The laser irradiation unit 200 may be rotatably provided in the movable frame 320, for example, as described above.
그러나, 이송유닛(300)의 구성은 특별히 한정되지 않고, 레이저조사유닛(200)이 롤(RL)의 길이방향으로 이동하도록 하는 구성이라면 주지의 어떠한 구성이라도 가능하다.However, the configuration of the transfer unit 300 is not particularly limited, and any known configuration can be used as far as the laser irradiation unit 200 is configured to move in the longitudinal direction of the roll RL.
금속판 제조방법Method of manufacturing metal plate
이하, 도3과 도4를 참조로 하여 본 발명에 따른 금속판 제조방법의 일실시예에 대하여 설명한다.Hereinafter, a method of manufacturing a metal plate according to the present invention will be described with reference to FIGS. 3 and 4. FIG.
도3은 본 발명에 따른 금속판 제조방법의 일실시예를 나타내는 도면이며, 도4는 본 발명에 따른 금속판 제조방법의 일실시예가 적용된 공정을 나타내는 도면이다.FIG. 3 is a view showing an embodiment of a method for manufacturing a metal plate according to the present invention, and FIG. 4 is a view showing a process to which an embodiment of a method for manufacturing a metal plate according to the present invention is applied.
본 발명에 따른 금속판 제조방법의 일실시예는 도3에 도시된 바와 같이 압연단계(S100), 패턴형성단계(S200) 및, 열처리단계(S300)를 포함할 수 있다.An embodiment of the method for manufacturing a metal plate according to the present invention may include a rolling step (S100), a pattern forming step (S200) and a heat treatment step (S300) as shown in FIG.
압연단계(S100)에서는 제철소의 연주공정의 연주기에서 만들어진 슬래브 또는 금속판을 압연하여 소정 너비와 두께를 가지는 금속판을 만들 수 있다. 예컨대, 슬래브 또는 금속판은 복수개의 압연기(RM)를 거치면서 압연되어 소정 너비와 두께를 가지는 금속판이 될 수 있다. 이외에, 압연단계(S100)에서는 도시되지는 않았으나, 하나의 압연기(RM)에서 슬래브 또는 금속판을 복수번 압연하여 소정 너비와 두께를 가지는 금속판으로 만들 수도 있다.In the rolling step (S100), a slab or a metal plate produced in the performance machine of the steel making process can be rolled to form a metal plate having a predetermined width and thickness. For example, a slab or a metal plate may be rolled through a plurality of rolling mills RM to become a metal plate having a predetermined width and thickness. In addition, although not shown in the rolling step S100, a slab or a metal plate may be rolled several times in one rolling mill RM to form a metal plate having a predetermined width and thickness.
패턴형성단계(S200)에서는 표면에 소정의 패턴이 형성된 롤(RL)로, 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성할 수 있다. 패턴형성단계(S200)에서는 전술한 롤표면 패턴형성장치(100)에 의해서 표면에 소정의 패턴이 형성된 롤(RL)로, 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성할 수 있다. In the pattern forming step S200, a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by a roll RL having a predetermined pattern formed on its surface. In the pattern forming step S200, a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by a roll RL having a predetermined pattern formed on its surface by the roll surface pattern forming apparatus 100 described above.
롤(RL) 표면에는 롤표면 패턴형성장치(100)에 의해서 헤어라인 패턴이 형성될 수 있다. 이에 의해서, 소정 너비와 두께를 가지는 금속판에는 롤(RL) 표면의 헤어라인 패턴이 전사되어 소정 너비와 두께를 가지는 금속판에도 헤어라인 패턴이 형성될 수 있다. 이와 같이, 소정 너비와 두께를 가지는 금속판에 헤어라인 패턴이 형성되면 금속판의 외관이 미려하며 빛이 반사되지 않도록 할 수 있다.On the surface of the roll (RL), a hairline pattern may be formed by the roll surface pattern forming apparatus (100). Thus, the hair line pattern on the surface of the roll (RL) is transferred to the metal plate having a predetermined width and thickness, and a hair line pattern can be formed on the metal plate having a predetermined width and thickness. When a hair line pattern is formed on a metal plate having a predetermined width and thickness, the appearance of the metal plate is good and light is not reflected.
그러나, 롤표면 패턴형성장치(100)에 의해서 롤(RL) 표면에 형성되는 소정의 패턴은 헤어라인 패턴에 한정되지 않고, 어떠한 패턴이라도 형성될 수 있다.However, the predetermined pattern formed on the roll (RL) surface by the roll surface pattern forming apparatus 100 is not limited to the hairline pattern, and any pattern can be formed.
표면에 소정의 패턴이 형성된 롤(RL)은 도4에 도시된 바와 같이 복수개의 압연기(RM) 중 공정방향으로 마지막에 위치하는 압연기(RM)나 복수개의 압연기(RM) 다음에 추가로 위치하는 압연기(RM)의 워크롤일 수 있다. 이에 의해서, 압연단계(S100)를 위한 기존의 압연기(RM)를 사용하거나, 하나의 압연기(RM)만을 추가하여 패턴형성단계(S200)를 수행할 수 있다.The roll RL having a predetermined pattern formed on its surface is positioned further downstream of the rolling mill RM or the plurality of mills RM located last in the process direction among the plurality of rolling mills RM as shown in FIG. It may be a work roll of a rolling mill RM. Thereby, the conventional rolling mill RM for the rolling step S100 or the pattern forming step S200 can be performed by adding only one rolling mill RM.
그러므로, 패턴형성단계(S200)에서는 표면에 소정의 패턴이 형성된, 압연기(RM)의 워크롤에 의해서 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성할 수 있다.Therefore, in the pattern formation step (S200), a predetermined pattern can be formed on a metal plate having a predetermined width and thickness by a work roll of a rolling mill RM having a predetermined pattern formed on its surface.
한편, 압연단계(S100)에서 하나의 압연기(RM)에서 슬래브 또는 금속판을 복수번 압연하여 소정 너비와 두께를 가지는 금속판으로 만드는 경우에, 패턴형성단계(S200)에서는 압연기(RM)에 의한 슬래브 또는 금속판의 마지막 압연에서 표면에 소정의 패턴이 형성된 롤(RL)을 압연기(RM)의 워크롤과 교체하여, 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성할 수 있다.On the other hand, when the slab or the metal plate is rolled several times in one rolling mill RM in the rolling step S100 to form a metal plate having a predetermined width and thickness, in the pattern forming step S200, A predetermined pattern can be formed on a metal plate having a predetermined width and thickness by replacing a roll (RL) having a predetermined pattern formed on its surface in the final rolling of the metal plate with a work roll of the rolling mill RM.
열처리단계(S300)에서는 소정의 패턴이 형성된 금속판을 열처리할 수 있다. 예컨대, 열처리단계(S300)에서는 소정의 패턴이 형성된 금속판을 소둔열처리할 수 있다. 이외에, 미려한 표면이 요구되는 경우에 열처리단계(S300)에서는 소정의 패턴이 형성된 금속판을 광휘소둔열처리할 수 있다. In the heat treatment step S300, the metal plate on which a predetermined pattern is formed can be heat-treated. For example, in the heat treatment step (S300), the metal plate on which the predetermined pattern is formed can be annealed. In addition, in the case where a beautiful surface is required, a metal plate on which a predetermined pattern is formed can be subjected to a brass annealing heat treatment in the heat treatment step (S300).
이와 같이, 본 발명에 따른 금속판 제조방법의 일실시예에서는 금속판을 열처리하기 전에 금속판에 소정의 패턴을 형성한다. 그러므로, 금속판에 형성된 소정의 패턴에 열처리에 의해서 부동태 피막이 형성될 수 있다. 따라서, 금속판을 열처리한 후 금속판에 소정의 패턴을 형성하는 종래의 금속판 제조방법과 같이 금속판에 소정의 패턴을 형성하는 것에 의해서 부동태 피막이 손상되지 않을 수 있다, 이에 따라, 금속판의 내식성이 향상될 수 있다.As described above, in one embodiment of the method for manufacturing a metal plate according to the present invention, a predetermined pattern is formed on a metal plate before the heat treatment of the metal plate. Therefore, a passive film can be formed by heat treatment on a predetermined pattern formed on the metal plate. Therefore, by forming a predetermined pattern on the metal plate as in the conventional metal plate manufacturing method of forming a predetermined pattern on the metal plate after heat-treating the metal plate, the passive film can be prevented from being damaged. have.
이상에서와 같이 본 발명에 따른 롤표면 패턴형성장치와 금속판 제조방법을 사용하면, 서로 소정간격을 복수개의 패턴형성용 레이저로 롤 표면에 소정의 패턴이 형성되도록 하며 소정의 패턴이 표면에 형성된 롤로 금속판에 소정의 패턴을 형성하여도 금속판의 내식성이 저하되지 않고 향상되도록 할 수 있다.As described above, by using the apparatus for forming a roll surface pattern and the method for producing a metal plate according to the present invention, it is possible to form a predetermined pattern on a roll surface by a plurality of pattern forming lasers at predetermined intervals, Even if a predetermined pattern is formed on the metal plate, the corrosion resistance of the metal plate can be improved without deteriorating.
상기와 같이 설명된 롤표면 패턴형성장치와 금속판 제조방법은 상기 설명된 실시예의 구성이 한정되게 적용될 수 있는 것이 아니라, 상기 실시예들은 다양한 변형이 이루어질 수 있도록 각 실시예들의 전부 또는 일부가 선택적으로 조합되어 구성될 수도 있다.The roll surface pattern forming apparatus and the metal plate manufacturing method described above are not limited to the configurations of the embodiments described above, but the embodiments may be modified such that all or some of the embodiments are selectively And may be configured in combination.

Claims (13)

  1. 발진된 레이저를 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저로 만들고 회전하는 롤 표면의 적어도 일부에 조사하여 상기 롤 표면에 소정의 패턴이 형성되도록 하는 레이저조사유닛; 및A laser irradiating unit for making a plurality of pattern forming lasers having oscillation lasers at predetermined intervals and irradiating at least a part of the rotating roll surface to form a predetermined pattern on the roll surface; And
    상기 레이저조사유닛이 상기 롤의 길이방향으로 이동하도록 하는 이송유닛;A transfer unit for causing the laser irradiation unit to move in the longitudinal direction of the roll;
    을 포함하는 롤표면 패턴형성장치.And the roll surface pattern forming device.
  2. 제1항에 있어서, 상기 레이저조사유닛은 레이저를 발진하는 레이저발진기와, 상기 레이저발진기에서 발진된 레이저가 서로 소정 간격을 가지는 복수개의 패턴형성용 레이저로 분기되도록 하는 레이저분기렌즈를 포함하는 롤표면 패턴형성장치.The laser irradiation apparatus according to claim 1, wherein the laser irradiation unit comprises: a laser oscillator for oscillating a laser; and a laser diverging lens for diverging a laser beam emitted from the laser oscillator to a plurality of pattern forming laser Pattern forming apparatus.
  3. 제2항에 있어서, 상기 레이저분기렌즈는 요철면이 형성되어 입사된 레이저가 회절되어 복수개로 분기되도록 하는 롤표면 패턴형성장치.3. The roll surface pattern forming apparatus according to claim 2, wherein the laser diverging lens has an uneven surface, and the incident laser is diffracted so as to be branched into a plurality of rolls.
  4. 제3항에 있어서, 상기 레이저조사유닛은 상기 레이저발진기와 레이저분기렌즈 사이에 구비되며 상기 레이저발진기에서 발진된 레이저가 진행하면서 확산되는 것을 방지하는 콜리메이트렌즈를 더 포함하는 롤표면 패턴형성장치.The apparatus as claimed in claim 3, wherein the laser irradiating unit further comprises a collimator lens provided between the laser oscillator and the laser diverging lens, the collimator lens preventing the laser oscillated by the laser oscillator from diffusing.
  5. 제1항에 있어서, 상기 레이저조사유닛에서 조사되는 복수개의 패턴형성용 레이저의 조사각도를 조절하여 상기 롤 표면에 형성되는 패턴의 간격을 조절하는 롤표면 패턴형성장치.The roll surface pattern forming apparatus according to claim 1, wherein an irradiation angle of a plurality of pattern forming lasers irradiated by the laser irradiation unit is adjusted to adjust the interval of patterns formed on the roll surface.
  6. 제5항에 있어서, 상기 레이저조사유닛은 상기 이송유닛에 회전가능하게 구비되고,6. The apparatus according to claim 5, wherein the laser irradiation unit is rotatably provided in the transfer unit,
    상기 레이저조사유닛의 상기 이송유닛에서의 회전으로 상기 레이저조사유닛에서 조사되는 복수개의 패턴형성 레이저의 조사각도를 조절하는 롤표면 패턴형성장치.And the irradiation angle of the plurality of pattern forming lasers irradiated by the laser irradiation unit is adjusted by rotation of the laser irradiation unit in the transfer unit.
  7. 제1항에 있어서, 상기 레이저조사유닛에 포함되는 레이저발진기를 온오프하여 상기 롤 표면에 형성되는 패턴의 길이를 조절하는 롤표면 패턴형성장치.The roll surface pattern forming apparatus according to claim 1, wherein a length of a pattern formed on the roll surface is adjusted by turning on and off a laser oscillator included in the laser irradiation unit.
  8. 슬래브 또는 금속판을 압연하여 소정 너비와 두께를 가지는 금속판으로 만드는 압연단계;A rolling step of rolling a slab or a metal plate into a metal plate having a predetermined width and thickness;
    표면에 소정의 패턴이 형성된 롤로, 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성하는 패턴형성단계; 및A pattern forming step of forming a predetermined pattern on a metal plate having a predetermined width and thickness with a roll having a predetermined pattern formed on its surface; And
    소정의 패턴이 형성된 금속판을 열처리하는 열처리단계;A heat treatment step of heat-treating a metal plate on which a predetermined pattern is formed;
    를 포함하는 금속판 제조방법.≪ / RTI >
  9. 제8항에 있어서, 상기 패턴형성단계에서는 상기 제1항 내지 제7항 중 어느 한 항에 기재된 롤표면 패턴형성장치에 의해서 표면에 소정의 패턴이 형성된 롤로, 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성하는 금속판 제조방법.The pattern forming method according to claim 8, wherein in the pattern forming step, a predetermined pattern is formed on the surface by the roll surface pattern forming apparatus according to any one of claims 1 to 7, Of the metal plate.
  10. 제9항에 있어서, 상기 롤 표면에는 상기 롤표면 패턴형성장치에 의해서 헤어라인 패턴이 형성되는 금속판 제조방법.The method of manufacturing a metal plate according to claim 9, wherein a hairline pattern is formed on the roll surface by the roll surface pattern forming apparatus.
  11. 제9항에 있어서, 상기 압연단계에서는 복수개의 압연기에 의해서 슬래브 또는 금속판을 압연하여 소정 너비와 두께를 가지는 금속판으로 만들며,10. The method of claim 9, wherein in the rolling step, a slab or a metal plate is rolled by a plurality of rolling mills to form a metal plate having a predetermined width and thickness,
    표면에 소정의 패턴이 형성된 상기 롤은 복수개의 압연기 중 공정방향으로 마지막에 위치하는 압연기나 복수개의 상기 압연기 다음에 추가로 위치하는 압연기의 워크롤이고,The roll having a predetermined pattern formed on the surface thereof is a work roll of a rolling mill positioned finally in the process direction among a plurality of rolling mills or a rolling mill further positioned after a plurality of the rolling mills,
    상기 패턴형성단계에서는 표면에 소정의 패턴이 형성된 상기 워크롤에 의해서 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성하는 금속판 제조방법.Wherein the pattern forming step forms a predetermined pattern on a metal plate having a predetermined width and thickness by the work roll having a predetermined pattern formed on its surface.
  12. 제9항에 있어서, 상기 압연단계에서는 하나의 압연기에서 슬래브 또는 금속판을 복수번 압연하여 소정 너비와 두께를 가지는 금속판으로 만들며,The method as claimed in claim 9, wherein in the rolling step, the slab or the metal plate is rolled several times in one rolling machine to form a metal plate having a predetermined width and thickness,
    상기 패턴형성단계에서는 상기 압연기에 의한 슬래브 또는 금속판의 마지막 압연에서 표면에 소정의 패턴이 형성된 상기 롤을 상기 압연기의 워크롤과 교체하여 소정 너비와 두께를 가지는 금속판에 소정의 패턴을 형성하는 금속판 제조방법.In the pattern formation step, the roll having the predetermined pattern formed on the surface thereof in the last rolling of the slab or the metal plate by the rolling machine is replaced with a work roll of the rolling machine to produce a metal plate that forms a predetermined pattern on a metal plate having a predetermined width and thickness Way.
  13. 제8항에 있어서, 상기 열처리단계에서는 소정의 패턴이 형성된 금속판을 소둔열처리하거나 광휘소둔열처리하는 금속판 제조방법.The method of manufacturing a metal plate according to claim 8, wherein in the heat treatment step, the metal plate on which the predetermined pattern is formed is subjected to annealing or brass annealing.
PCT/KR2018/015595 2017-12-26 2018-12-10 Roll surface pattern formation device and metal plate manufacturing method WO2019132316A1 (en)

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