KR19980046764A - Coil welding part meander control device - Google Patents
Coil welding part meander control device Download PDFInfo
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- KR19980046764A KR19980046764A KR1019960065168A KR19960065168A KR19980046764A KR 19980046764 A KR19980046764 A KR 19980046764A KR 1019960065168 A KR1019960065168 A KR 1019960065168A KR 19960065168 A KR19960065168 A KR 19960065168A KR 19980046764 A KR19980046764 A KR 19980046764A
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- steel sheet
- meandering
- roll
- main shaft
- welding
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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/0408—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work for planar work
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- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/16—Bands or sheets of indefinite length
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
본 발명은 박판 연속 제조가 가능하도록 선행 강판의 후단부와 후행 강판의 선단부를 용접에 의하여 연결하는 경우 발생하는 사행을 제어할 수 있도록 된 코일 용접부 사행제어장치에 관한 것으로, 강판의 일측 표면에 설치되고, 그 강판의 진행중심선에 대한 좌우측에 대칭으로 복수개 설치되며, 강판의 폭방향으로 설치되어 그 강판의 중심부에서 회전가능하도록 된 주축(9)에 의하여 서로 연결되어 강판에 적정압력으로 접촉하여 회전할 수 있도록 사행교정용 롤(8); 상기 사행교정용 롤(8)에 대응하여 강판의 타측 표면에 설치된 보조롤(12); 상기 주축(9)에 연결되어 그 주축(9)를 회전시키도록 된 핸들(10); 강판의 일측 가장자리부에 장착되어 그 강판의 사행정도를 감지하도록 된 센서(7);로 이루어짐을 특징으로 한다.The present invention relates to a coil welding part meandering control device which can control the meandering that occurs when the rear end portion of the preceding steel sheet and the leading end portion of the subsequent steel sheet are connected by welding to enable continuous sheet metal fabrication, and are installed on one surface of the steel sheet. And plural symmetrically installed on the left and right sides with respect to the progress center line of the steel sheet, and are connected to each other by a main shaft 9 installed in the width direction of the steel sheet so as to be rotatable at the center of the steel sheet and contacting the steel sheet at an appropriate pressure. Meandering rolls 8 to enable; An auxiliary roll 12 installed on the other side surface of the steel sheet in correspondence with the meander calibration roll 8; A handle (10) connected to the main shaft (9) to rotate the main shaft (9); And a sensor 7 mounted on one side edge of the steel sheet to detect the meandering degree of the steel sheet.
Description
본 발명은 박판 연속 제조가 가능하도록 선행 강판의 후단부와 후행 강판의 선단부를 용접에 의하여 연결하는 경우 발생하는 사행을 제어할 수 있도록 된 코일 용접부 사행제어장치에 관한 것이다.The present invention relates to a coil welding part meander control device capable of controlling meandering that occurs when the rear end portion of the preceding steel sheet and the leading end portion of the subsequent steel sheet are connected by welding so as to enable continuous sheet production.
강판의 연속 제조설비에서 선행 강판에 대한 작업이 완료되어지면, 페이오프릴(Pay-off Reel)로부터 새로운 코일을 풀어서 선행 강판의 후단부에 후행 강판의 선단부를 용접에 의하여 서로 연결하고, 이렇게 서로 연결된 강판을 압연기 등에서 연속적으로 송급하여 연속 설비로 강판을 제조하도록 하는 것이다.When the work on the preceding steel plate is completed in the continuous manufacturing equipment of the steel sheet, the new coil is released from the pay-off reel, and the ends of the following steel sheet are connected to each other by welding at the rear end of the preceding steel sheet. The connected steel sheet is continuously fed in a rolling mill or the like to produce the steel sheet in a continuous facility.
즉, 도 1에서 도시한 바와 같이 선행 강판(4a)은 브라이들 롤(bridle roll)(5)과 이송용 롤(4)을 지나 다음 공정으로 이송되며, 선행 강판의 코일이 모두 풀리게 되면 페이오프릴(2)로부터 새로운 코일(2a)을 풀어서 선행 강판의 후단부와 후행 강판(2a)의 선단부를 용접기(3)에서 맞붙여 용접하여 강판 제조 공정이 연속적으로 이루어지도록 한다.That is, as shown in FIG. 1, the preceding steel sheet 4a is transferred to the next process after the bridle roll 5 and the conveying roll 4, and when all the coils of the preceding steel sheet are released, The new coil 2a is released from the prill 2 and the rear end of the preceding steel plate and the leading end of the subsequent steel plate 2a are joined together by welding in the welding machine 3 so that the steel sheet manufacturing process is continuously performed.
또한, 페이오프릴(2)로부터 후행 강판이 다 풀려 작업이 완료되면 다른 페이오프릴(1)로부터 새로운 코일(1a)을 풀어서 강판(2a)의 후단부에 새로운 강판(1a)의 선단부를 용접하여 강판을 송급한다. 이와 같이 페이오프릴(1)과 (2)를 번갈아 사용하여 연속작업이 이루어지도록 하고 있다.In addition, when the trailing steel sheet is released from the payoff reel 2 and the work is completed, the new coil 1a is released from the other payoff reel 1 to weld the leading end of the new steel plate 1a to the rear end of the steel plate 2a. Feed the steel sheet. In this way, the payoff reels (1) and (2) are alternately used to perform continuous work.
여기에서, 페이오프릴(1)과 (2)로부터 강판을 풀 때 강판(1a)(2a)의 선단부가 한쪽 방향으로 쏠리는 현상이 발생하게 되는데, 이를 사행(蛇行)이라 한다. 이는 또한 선행 강판의 후단부에서도 발생한다. 이렇게 되면, 선행 강판의 후단부와 후행 강판의 선단부를 용접기에서 맞붙여 용접할 때 도 2b에 나타난 바와 같이 절곡된 형상으로 용접되어 후행 공정으로 사행이 전파되어지며, 심한 경우에는 버클(buckle)이 발생하거나 강판에 흠이 발생하여 최종 제품에 영향을 주게 된다. 도 2a는 사행이 발생하지 않은 이상적인 경우의 용접결과이다.Here, when unwinding the steel sheet from the payoff reel (1) and (2), the leading end of the steel sheet (1a) (2a) is caused to lean in one direction, which is called meandering. This also occurs at the rear end of the preceding steel plate. In this case, when the rear end portion of the preceding steel sheet and the front end portion of the subsequent steel sheet are welded together in a welder and welded in a bent shape as shown in FIG. 2B, the meander is propagated in a trailing process, and in a severe case, a buckle is provided. Or flaws in the steel sheet affecting the final product. 2A is a welding result in an ideal case where no meander occurs.
후판의 경우에는 도 3에 도시한 바와 같이, 가이드롤(6)을 이용하여 그 편심을 방지할 수 있으나, 박판의 경우에는 이와 같은 방법을 사용할 경우에 판 자체에 휨이 발생하여 사행에 의한 편심을 제어하기가 곤란하게 된다.In the case of a thick plate, as shown in FIG. 3, the eccentricity can be prevented by using the guide roll 6, but in the case of a thin plate, when such a method is used, warpage occurs in the plate itself, which is caused by meandering. It becomes difficult to control.
본 발명은 이러한 종래의 문제점을 해소하기 위하여 안출된 것으로서, 그 목적은, 박판 연속 제조가 가능하도록 선행 강판의 후단부와 후행 강판의 선단부를 용접에 의하여 연결하는 경우 발생하는 사행을 제어하여 선행 강판의 후단부와 후행 강판의 선단부가 가지는 중심선이 서로 일치하도록 함으로서 박판의 연속제조설비의 원활한 운용과 그에 따른 박판의 품질향상을 도모할 수 있도록 된 코일 용접부 사행제어장치를 제공함에 있다.The present invention has been made in order to solve such a conventional problem, the object is to control the meandering occurs when connecting the front end of the preceding steel plate and the leading end of the subsequent steel sheet by welding so that the continuous sheet production can be performed by the preceding steel sheet It is to provide a coil welding part meandering control device to facilitate smooth operation of the continuous manufacturing equipment of the sheet and thereby improve the quality of the sheet by matching the center line of the rear end and the trailing end of the trailing steel plate.
도 1은 강판의 연속생산설비의 용접부측 주변장치를 도시한 개략 구성도1 is a schematic configuration diagram showing the peripheral portion of the welded portion of the continuous production equipment of steel sheet
도 2는 선행강판과 후행강판의 용접등으로 접합하여 서로 연결한 상태를 도시하며,Figure 2 shows a state connected to each other by welding, such as welding of the preceding steel plate and the following steel plate,
(a)는 양호한 연결상태(a) indicates good connection
(b)는 사행발생에 의하여 불량한 연결상태(b) indicates poor connection due to meandering
도 3은 종래의 가이드 롤에 의한 강판의 사행교정방법을 도시한 개략 구성도Figure 3 is a schematic configuration diagram showing a meandering correction method of the steel sheet by a conventional guide roll
도 4는 본 발명에 따른 코일 용접부 사행제어장치를 이용하여 강판의 사행을 교정하는 원리를 도시한 개략 구성도로서,Figure 4 is a schematic configuration diagram showing the principle of correcting the meandering of the steel sheet using the coil welding part meander control apparatus according to the present invention,
(a)는 정상적인 경우의 상태(a) is a normal case
(b)는 어느 일측으로 강판이 사행하는 경우의 상태(b) is the state when the steel sheet meanders to either side
(c)는 다른 일측으로 강판이 사행하는 경우의 상태(c) is the state when the steel sheet meanders to the other side
도 5는 본 발명에 따른 코일 용접부 사행제어장치가 강판의 연속설비에 장착된 상태의 요부구성도로서,5 is a main configuration diagram of a coil welding unit meandering control apparatus according to the present invention mounted on a continuous facility of steel sheet;
(a)는 정면도(a) is a front view
(b)는 평면도이다.(b) is a top view.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1,2 ... 페이오프릴1,2 ... payoff reel
3 ... 용접기3 ... welder
4 ... 이송용 롤4 ... feed roll
7 ... 센서7 ... sensor
8 ... 사행 교정용 롤8 ... meander correction roll
9 ... 주축9 ... spindle
10 ... 운전대10 ... steering wheel
12 ... 보조롤러12 ... auxiliary roller
13 ... 제어기13 ... controller
상기 목적을 달성하기 위한 기술적인 구성으로서, 본 발명은, 용접기에 의하여 선행강판의 후단부와 후행강판의 선단부를 용접으로 서로 연결하여 줌으로서 연속적인 강판의 생산이 가능하도록 하는 강판 연속 생산 설비에 있어서, 강판의 일측 표면에 설치되고, 그 강판의 진행중심선에 대한 좌우측에 대칭으로 복수개 설치되며, 강판의 폭방향으로 설치되어 그 강판의 중심부에서 회전가능하도록 된 주축에 의하여 서로 연결되어 강판에 적정압력으로 접촉하여 회전할 수 있도록 사행교정용롤; 상기 사행교정용 롤에 대응하여 강판의 타측 표면에 설치된 보조롤; 상기 주축에 연결되어 그 주축을 회전시키도록 된 핸들; 강판의 일측 가장자리부에 장착되어 그 강판의 사행정도를 감지하도록 된 센서;로 이루어짐으로서, 센서에 의하여 강판의 사행이 감지되면 핸들을 회전시켜 사행교정용 롤을 사행에 의한 강판의 진행선의 반대측으로 선회시킴을 특징으로 하는 코일 용접부 사행제어장치를 마련함에 의한다.As a technical configuration for achieving the above object, the present invention is to provide a steel sheet continuous production equipment that enables the production of continuous steel sheet by connecting the rear end of the preceding steel plate and the leading end of the trailing steel plate by welding by welding. It is provided on one surface of the steel sheet, a plurality of symmetrically installed on the left and right sides with respect to the progress center line of the steel sheet, is installed in the width direction of the steel plate is connected to each other by a main shaft that is rotatable in the center of the steel sheet is suitable for the steel sheet Meandering roll for rotating in contact with pressure; An auxiliary roll installed on the other surface of the steel sheet in correspondence with the meandering roll; A handle connected to the main shaft to rotate the main shaft; A sensor mounted on one side edge of the steel sheet to detect the meandering degree of the steel sheet, and when the meandering of the steel sheet is detected by the sensor, the handle is rotated so that the meander correction roll is moved to the opposite side of the steel line by the meandering line. By providing a coil welding unit meander control device characterized in that the turning.
이하, 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail.
도 4는 본 발명에 따른 코일 용접부 사행제어장치에 의하여 강판의 사행이 교정되어지는 상태를 도시한 설명도이고, 도 5는 본 발명에 따른 코일 용접부 사행교정장치를 갖춘 박판 연속 제조설비를 도시한 개략 구성도로서, 강판의 일측 가장자리가 진행하는 진행선(기준선)상에 설치되어 강판의 상부측 또는 하부측에 위치함으로서 그 부분에서 강판 가장자리의 사행정도를 측정하도록 된 센서(7)와, 강판의 진행중심선에 대한 양측으로 동일한 거리 떨어져 서로 평행하도록 수직하게 설치되고 강판의 표면에 적정한 압력으로 접촉되어 공회전할 수 있도록 된 복수개의 사행 교정용 롤(8)과, 상기 사행 교정용 롤(8)을 서로 연결하여 회전가능하도록 지지하여 주며 강판 중심에 대한 수직선을 회전중심으로 하여 회전가능하도록 장착되는 주축(9)과, 상기 주축(9)에 연결축(11)을 매개로 연결되어 그 주축(9)을 회전할 수 있도록 함으로서 사행 교정용 롤(8)의 방향을 교정할 수 있도록 된 운전대(10)를 가진다.4 is an explanatory view showing a state in which the meandering of the steel sheet is corrected by the coil welding part meandering control device according to the present invention, and FIG. 5 is a sheet continuous manufacturing apparatus having a coil welding part meandering correction device according to the present invention. As a schematic configuration diagram, a sensor 7 which is installed on a traveling line (reference line) on which one edge of the steel sheet advances and is located on the upper side or the lower side of the steel sheet to measure the meandering degree of the steel sheet edge at that portion, and the steel sheet A plurality of meandering straightening rolls 8 and vertically installed so as to be parallel to each other at the same distance to both sides with respect to the progress center line of the steel sheet, and to be idled by contacting the surface of the steel sheet with an appropriate pressure; The main shaft 9 which is rotatably connected to each other and is rotatably supported at a center of rotation of a vertical line with respect to the center of the steel sheet; Has a steering wheel 10 to correct the orientation of the shaft is connected to (9) mediating the connection shaft 11 to the main shaft (9) by meandering correction roll (8) to rotate.
또한, 상기 사행 교정용 롤(8)에 대응하여 강판의 하부측에 위치함으로서 그 강판은 물론 사행 교정용 롤(8)을 지지할 수 있도록 된 보조 롤(12)이 설치되고, (13)은 페이오프릴(1)(2)과 이송용 롤(4)을 구동하도록 된 제어기이다.Further, an auxiliary roll 12 is provided so as to be able to support the steel sheet as well as the meander straightening roll 8 by being located at the lower side of the steel sheet in correspondence with the meandering straightening roll 8, and (13) It is a controller which drives the payoff reel (1) (2) and the feed roll (4).
이는 사행량 측정용 센서(7)가 후행강판이 중심선으로부터 편심되는 양을 측정하고, 운전대(10)를 교정하여 사행 교정용 롤(8)의 방향을 편심된 쪽의 반대방향으로 향하도록 하여 편심을 제거하도록 한다.This means that the meandering quantity measuring sensor 7 measures the amount that the trailing steel plate is eccentric from the center line, and corrects the steering wheel 10 so that the direction of the meandering correction roll 8 is directed in the opposite direction to the eccentric side. Remove it.
즉, 센서(7)는 적정하게 설정된 위치에 설치되어 후행 강판의 선단부가 용접기의 후방으로 진입할 때, 강판의 중심선이 용접기의 중심으로부터 벗어나는 편차를 측정한다.That is, the sensor 7 is installed at an appropriately set position, and measures the deviation that the centerline of the steel sheet deviates from the center of the welder when the leading end of the trailing steel sheet enters the rear of the welder.
만약, 후행강판의 중심이 도 4b에 도시한 바와 같이 도면의 상부측으로 편심되어 있으면, 운전대(10)를 교정하여 주축(9)을 반시계방향으로 회전되어지도록 하여 강판이 점차 하부측으로 이동하게 함으로서 도 4a에 도시한 바와 같은 편심이 없는 상태로 교정하게 된다.If the center of the trailing steel sheet is eccentric to the upper side of the drawing as shown in FIG. 4B, the steel plate moves gradually to the lower side by calibrating the steering wheel 10 so that the main shaft 9 is rotated counterclockwise. Correction is made in the absence of eccentricity as shown in FIG. 4A.
반대로, 후행강판의 중심이 도 4c에 도시한 바와 같이 도면의 하부측으로 편심되어 있으며, 운전대(10)를 교정하여 주축(9)을 시계방향으로 회전되어지도록 하여 강판이 점차 상부측으로 이동하게 함으로서 도 4a에 도시한 바와 같은 편심이 없는 상태로 교정하게 된다.On the contrary, the center of the trailing steel sheet is eccentric to the lower side of the drawing as shown in Fig. 4c, and the steel plate moves gradually to the upper side by calibrating the steering wheel 10 so that the main shaft 9 is rotated clockwise. The correction is made without the eccentricity as shown in 4a.
물론, 선행강판의 후단부에 이러한 현상이 발생하는 경우에도 상기한 방법에 의하여 편심을 교정하면 된다.Of course, the eccentricity may be corrected by the above method even when such a phenomenon occurs at the rear end of the preceding steel sheet.
도 5에서 용접기(3)의 우측과 좌측에는 본 발명에 따른 사행 교정용 롤(8)이 그에 부속하는 여러 구성요소들과 함께 장착되어 강판에서 발생하는 사행을 교정하도록 된 설비를 도시하며, 이는 용접기(3)의 우측에 설치되는 사행 교정용 롤(8)은 후행강판의 선단부에서 발생하는 편심을 교정하여 주기 위함이고, 용접기(3)의 좌측에 설치되는 사행 교정용 롤(8)은 선행강판의 후단부에서 발생하는 편심을 교정하여 주기 위함이다.On the right and left side of the welder 3 in FIG. 5 a meander calibration roll 8 according to the invention is mounted together with the various components attached thereto to show a plant which is adapted to correct meandering occurring in the steel sheet, which The meandering straightening roll 8 provided on the right side of the welder 3 is for correcting the eccentricity occurring at the distal end of the trailing steel sheet, and the meandering straightening roll 8 provided on the left side of the welding machine 3 is preceded. This is to correct eccentricity occurring at the rear end of steel plate.
이때, 바람직하게는 상기 각각의 사행 교정용 롤(8)에 토우 앵글(toe angle)을 부여함으로서 강판을 가장자리측으로 밀어내는 힘이 발생하도록 하여 강판, 즉 박판이 폭방향에 수직한 방향으로 휘는 것을 방지하도록 하면 좋다.At this time, it is preferable that the steel sheet, i.e., the sheet bent in a direction perpendicular to the width direction, is generated by applying a toe angle to each meandering straightening roll 8 so as to generate a force for pushing the steel sheet to the edge side. You can prevent it.
또한, 강판의 선단 및 후단부 사행량 측정 센서(7)의 정보를 이송용 롤(4)을 구동하는 제어기(13)에 전송하여 설비의 제어값으로 하여 자동으로 조정하는 것이 보다 바람직하다.Moreover, it is more preferable to transmit the information of the front end and the rear end meandering quantity measurement sensor 7 of a steel plate to the controller 13 which drives the feed roll 4, and to automatically adjust it as a control value of an installation.
상술한 바와 같이 본 발명에 따른 코일 용접부 사행제어장치에 의하면, 강판을 연속으로 생산하기 위한 설비와 용접기 전방과 후방측에 설치되어 선행강판과 후행강판의 각각의 사행을 간단한 설비에 의하여 보다 효과적으로 교정하여 줌으로서, 서로의 중심선이 일치하는 상태로 용접하여 연결하는 것이 가능하여 강판, 특히 박판의 연속생산이 원활하게 이루어지는 우수한 효과를 가지는 것이다.As described above, according to the coil welding part meandering control device according to the present invention, it is installed at the front and rear sides of the welder and the equipment for continuously producing the steel plate, and more effectively corrects each meandering of the preceding steel plate and the following steel plate by a simple facility. In this way, it is possible to weld and connect each other in a state where the center lines coincide with each other, so that the continuous production of the steel sheet, especially the thin plate, can be smoothly performed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960065168A KR100293190B1 (en) | 1996-12-13 | 1996-12-13 | Coil welding part meander control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960065168A KR100293190B1 (en) | 1996-12-13 | 1996-12-13 | Coil welding part meander control device |
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| Publication Number | Publication Date |
|---|---|
| KR19980046764A true KR19980046764A (en) | 1998-09-15 |
| KR100293190B1 KR100293190B1 (en) | 2001-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960065168A Expired - Fee Related KR100293190B1 (en) | 1996-12-13 | 1996-12-13 | Coil welding part meander control device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100417521B1 (en) * | 1999-07-14 | 2004-02-05 | 주식회사 포스코 | Centering method of leading coil and trailing coil |
| KR101626599B1 (en) * | 2014-12-24 | 2016-06-01 | 주식회사 포스코 | Method for refining magnetic domain of oriented electrical steel, amd the device |
| KR101626601B1 (en) * | 2014-12-24 | 2016-06-01 | 주식회사 포스코 | Method for refining magnetic domain of oriented electrical steel, amd the device |
| KR101626600B1 (en) * | 2014-12-24 | 2016-06-02 | 주식회사 포스코 | Method for refining magnetic domain of oriented electrical steel, amd the device |
| KR20160078078A (en) * | 2014-12-24 | 2016-07-04 | 주식회사 포스코 | Method for refining magnetic domain of oriented electrical steel, amd the device |
| KR20160082603A (en) * | 2014-12-26 | 2016-07-08 | 주식회사 포스코 | Apparatus and method for miniaturizing magnetic domain of a grain-oriented electrical steel sheets |
| US10207303B2 (en) | 2014-01-20 | 2019-02-19 | Jfe Steel Corporation | Cold rolling apparatus |
-
1996
- 1996-12-13 KR KR1019960065168A patent/KR100293190B1/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100417521B1 (en) * | 1999-07-14 | 2004-02-05 | 주식회사 포스코 | Centering method of leading coil and trailing coil |
| US10207303B2 (en) | 2014-01-20 | 2019-02-19 | Jfe Steel Corporation | Cold rolling apparatus |
| KR101626599B1 (en) * | 2014-12-24 | 2016-06-01 | 주식회사 포스코 | Method for refining magnetic domain of oriented electrical steel, amd the device |
| KR101626601B1 (en) * | 2014-12-24 | 2016-06-01 | 주식회사 포스코 | Method for refining magnetic domain of oriented electrical steel, amd the device |
| KR101626600B1 (en) * | 2014-12-24 | 2016-06-02 | 주식회사 포스코 | Method for refining magnetic domain of oriented electrical steel, amd the device |
| KR20160078078A (en) * | 2014-12-24 | 2016-07-04 | 주식회사 포스코 | Method for refining magnetic domain of oriented electrical steel, amd the device |
| KR20160082603A (en) * | 2014-12-26 | 2016-07-08 | 주식회사 포스코 | Apparatus and method for miniaturizing magnetic domain of a grain-oriented electrical steel sheets |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100293190B1 (en) | 2001-11-22 |
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