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US20110095125A1 - Recoiling facility for magnesium alloy sheets - Google Patents

Recoiling facility for magnesium alloy sheets Download PDF

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Publication number
US20110095125A1
US20110095125A1 US12/682,803 US68280308A US2011095125A1 US 20110095125 A1 US20110095125 A1 US 20110095125A1 US 68280308 A US68280308 A US 68280308A US 2011095125 A1 US2011095125 A1 US 2011095125A1
Authority
US
United States
Prior art keywords
magnesium alloy
alloy sheet
trimmer
heating furnace
downstream side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/682,803
Other languages
English (en)
Inventor
Nobuhiro Tazoe
Hisashi Honjou
Hideo Matsumura
Katuhiko Yanai
Fumitaka Yanai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Primetals Technologies Holdings Ltd
Original Assignee
IHI Corp
IHI Metaltech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40567439&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20110095125(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP2007269059A external-priority patent/JP5238211B6/ja
Application filed by IHI Corp, IHI Metaltech Co Ltd filed Critical IHI Corp
Assigned to IHI CORPORATION, IHI METALTECH CO., LTD. reassignment IHI CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HONJOU, HISASHI, MATSUMURA, HIDEO, TAZOE, NOBUHIRO, YANAI, FUMITAKA, YANAI, KATUHIKO
Publication of US20110095125A1 publication Critical patent/US20110095125A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/16—Unwinding or uncoiling
    • B21C47/18—Unwinding or uncoiling from reels or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D19/00—Shearing machines or shearing devices cutting by rotary discs
    • B23D19/04—Shearing machines or shearing devices cutting by rotary discs having rotary shearing discs arranged in co-operating pairs
    • B23D19/06—Shearing machines or shearing devices cutting by rotary discs having rotary shearing discs arranged in co-operating pairs with several spaced pairs of shearing discs working simultaneously, e.g. for trimming or making strips

Definitions

  • the present invention relates to a recoiling facility for magnesium alloy sheets.
  • Patent document 1 discloses a scrap borer that enables the structure of the facility to be simplified, and enables manufacturing costs and maintenance and administration costs to be reduced.
  • Patent document 2 discloses a steel belt finishing facility equipped with side trimmers which makes it possible to achieve a reduction in equipment costs, and a shortening of the cycle time, and that makes it possible to prevent trimming defects.
  • Patent document 3 discloses a side trimmer apparatus that is able to perform side trimming processing on metal plates stably without generating any trimming defects.
  • Patent document 4 discloses a side trimmer apparatus for metal belts that is able to reliably prevent trimming scrap being scattered about and that is able to perform the side trimming of lightweight materials rapidly and stably even in non-steady portions such as locations where the trim width on one side becomes extremely narrow or locations where edge fractures are present.
  • Patent document 5 A conventional example of a leveler is disclosed in Patent document 5 (see below).
  • the leveler disclosed in Patent document 5 is used to perform shape correction on thin plate-shaped bar materials and to remove residual stress, however, it does not heat up a material and then perform leveling on this material while it is in a warm state.
  • Elongated lightweight metal sheets which are reverse rolled in either a hot or warm state are commonly wound onto a metal mandrel (i.e., core material) having a uniform internal diameter so as to form a coil material. Accordingly, when they are shipped in the form of a coil material equipped with a fixed mandrel, because the fixed mandrel is not required after the lightweight metal sheet has been used up, it is necessary to either dispose of the fixed mandrels or return them to the shipper or the like which uses up time and labor. Accordingly, it is desirable for a coil material to be rewound and shipped without a fixed mandrel having to be used.
  • the lightweight metal sheet is a magnesium alloy
  • the magnesium alloy is trimmed at room temperature it is easy for defects to occur such as the generation of minute cracks.
  • the present invention was conceived in view of the above described circumstances and it is an object thereof to manufacture a high quality product coil by rewinding a coil material which has been formed by winding a magnesium alloy sheet onto a fixed mandrel so that any further need for the fixed mandrel is eliminated, and by trimming shape defect portions and crack portions in the plate width end portions which are generated by multi-pass rolling.
  • a recoiling facility for a magnesium alloy sheet which includes: an unwinder which is able to unwind a coil material formed by winding magnesium alloy onto a fixed mandrel; a heating furnace which is located on the downstream side of the unwinder and which heats the magnesium alloy sheet which has been unwound from the coil material to a predetermined temperature; a trimmer which is located on the downstream side of the heating furnace and which trims both side edges of the magnesium alloy sheet; and a winder which is located on the downstream side of the trimmer and which rewinds the magnesium alloy sheet.
  • a scrap borer which is located on the downstream side of the trimmer and on the upstream side of the winder, and onto which is wound scrap trimmed from the two side edges of the magnesium alloy sheet.
  • a leveler which is located on the downstream side of the heating furnace and on the upstream side of the trimmer, and which corrects any shape defects in the magnesium alloy sheet.
  • a magnesium alloy sheet is trimmed while it is heated to a predetermined temperature, it is possible to prevent cracks being generated in the magnesium alloy sheet and to maintain a superior product quality.
  • FIG. 1 is a front view showing the structure of a recoiling facility for magnesium alloy sheets in an embodiment of the present invention.
  • FIG. 2 is a plan view showing the structure of the above recoiling facility for magnesium alloy sheets.
  • FIGS. 1 and 2 are a front view and a plan view showing the structure of a recoiling facility 100 for magnesium alloy sheets in the present embodiment.
  • this recoiling facility 100 is provided with an unwinder 1 , a trimmer 2 , a winder 3 , a heating furnace 4 , a scrap borer 5 , and a leveler 6 .
  • a coil material C is manufactured by the hot rolling of a magnesium alloy plate, and by winding the resulting elongated magnesium alloy sheet S onto a fixed mandrel.
  • the unwinder 1 is provided with a supporting portion that supports both ends of the fixed mandrel such that they are able to rotate freely, and with a drive source that causes the fixed mandrel to rotate in the unwinding direction of the magnesium alloy sheet S, and holds the aforementioned coil material C so as to be able to unwind it when needed.
  • the trimmer 2 is provided with a pair of side cutters 2 a and 2 b which face each other at a predetermined spacing, and trims both width edges of a magnesium alloy sheet S which has been unwound from the coil material C by the unwinder 1 . As a result, portions where cracks have occurred and shape defect portions are removed from the two width edges of the magnesium alloy sheet S, and the magnesium alloy sheet S is finished to a predetermined width dimension.
  • the winder 3 receives the magnesium alloy sheet S after it has been trimmed by the trimmer 2 which is wound onto it without a core being used.
  • the heating furnace 4 is located between the unwinder 1 and the trimmer 2 , and is formed by heaters H and a table 4 a inside a housing 40 with the heaters H being provided in a bottom portion thereof.
  • the housing 40 is provided with an entry side shutter 41 , an exit side shutter 42 , apertures 43 and 44 , and transporting auxiliary rollers 45 and 46 .
  • the aperture 43 is the intake aperture for the magnesium alloy sheet S and is formed in the upstream side surface of the housing 40
  • the aperture 44 is the discharge aperture for the magnesium alloy sheet S and is formed in the downstream side surface of the housing 40 .
  • the entry side shutter 41 opens and closes the upstream side aperture 43 of the housing 40 .
  • the exit side shutter 42 opens and closes the downstream side aperture 44 of the housing 40 .
  • the transporting auxiliary rollers 45 and 46 are rotated by a drive source such as a motor (not shown), and assist in the coil transporting by either drawing the magnesium alloy sheet S inside the heating furnace 4 or extracting it to the outside of the furnace.
  • a drive source such as a motor (not shown)
  • the heaters H heat the interior of the housing 40 to a predetermined temperature (approximately 200° C.) and then maintain this temperature. From the start of the heating until the interior of the housing 40 reaches the predetermined temperature, the entry side shutter 41 and the exit side shutter 42 are closed.
  • the table 4 a is a metal plate having a smooth top surface, and is heated by heat generating bodies located in a block beneath it.
  • the table 4 a allows a magnesium alloy sheet S to move smoothly over this smooth top surface.
  • This heating furnace 4 heats a magnesium alloy sheet S to a predetermined temperature so as to soften it to a suitable degree and simplify handling including processing such as the above described trimming and the like. For example, it is possible to prevent the occurrence of defects such as unforeseen fractures being generated in the magnesium alloy sheet S from impact received during the trimming.
  • the scrap borer 5 is located on the downstream side of the trimmer 2 and the upstream side of the winder 3 .
  • Scrap which is generated by the above described trimming i.e., portions which are cut off from both side edges of the magnesium alloy sheet S
  • wind-on portions 5 a and 5 b of the scrap borer 5 are provided on both sides of the transporting path of the magnesium alloy sheet S.
  • the leveler 6 is located between the unwinder 1 and the trimmer 2 on the downstream side of the heating furnace 4 .
  • the leveler 6 is located on the downstream side of the heating furnace 4 , it straightens the magnesium alloy sheet S which has been heated in the heating furnace 4 and softened to a suitable degree. As a result, there is no occurrence of fractures and the like and superior leveling can be preformed.
  • this recoiling facility 100 performs the following operations.
  • an operator preheats the heating furnace 4 to a predetermined temperature. At this time, the entry side shutter 41 and the exit side shutter 42 are closed.
  • the operator loads a coil material C formed by winding a magnesium alloy sheet S onto a mandrel in the unwinder 1 .
  • the unwinder 1 unwinds the magnesium alloy sheet S from the coil material C.
  • the operator raises the shutters 41 and 42 as far as necessary, so as to open the upstream side and the downstream side of the heating furnace 4 in a slit shape.
  • the operator inserts the front end of the magnesium alloy sheet S which has been unwound from the coil material C into the heating furnace 4 via the aforementioned slit.
  • the magnesium alloy sheet S which has been inserted inside the heating furnace 4 is supported by the table 4 a , and a distal end portion thereof slides over the table 4 a as it is moved through the interior of the furnace. The magnesium alloy sheet S is then moved to the outside of the heating furnace 4 .
  • the magnesium alloy sheet S is heated to a predetermined temperature (approximately 200° C.) as it is being transported through the interior of the heating furnace 4 .
  • the operator sets the magnesium alloy sheet S in the leveler 6 .
  • the leveler 6 corrects any shape defects or distortion in the magnesium alloy sheet S which has been heated in the heating furnace 4 and flattens the magnesium alloy sheet S. At this time, because the magnesium alloy sheet S has been softened to a suitable degree by heat, there is no occurrence of faults such as fractures being generated in the magnesium alloy sheet S caused by the leveling by the leveler 6 .
  • the operator sets the magnesium alloy sheet S in the trimmer 2 .
  • the trimmer 2 trims both width edges of the magnesium alloy sheet S so as to shape the magnesium alloy sheet S to a predetermined width, and so as to also remove any portions where cracks or shape defects or the like have been generated in the two width edges of the magnesium alloy sheet S. At this time as well, because the magnesium alloy sheet S has been softened to a suitable degree by the heat and is in a warm state, there is no occurrence of faults such as fractures being generated in the magnesium alloy sheet S caused by the trimming by the trimmer 2 .
  • the two side edges of the magnesium alloy sheet S which have been trimmed by the trimmer 2 are discharged as elongated belt-shaped scrap.
  • the operator sets the front end of the scrap discharged from the trimmer 2 in the scrap borer 5 which is located on the downstream side of the trimmer 2 .
  • the scrap borer 5 receives from beneath the magnesium alloy sheet S both side portions thereof which are wound onto it from above. As a result, it is possible to prevent the magnesium alloy sheet S being damaged by scrap after it has been shaped.
  • the operator sets the magnesium alloy sheet 2 in the winder 3 . At this time, the operator rolls a predetermined length of the magnesium alloy sheet S into a cylindrical shape when setting it, so that the magnesium alloy sheet S is wound onto the winder 3 without a core being used.
  • a magnesium alloy sheet S is rewound without a mandrel being required, and both side edges thereof can be trimmed and shaped. Because the magnesium alloy sheet S is worked after having been softened to a suitable degree by being heated in the heating furnace 4 , it is possible to prevent the occurrence of faults such as unforeseen cracks being generated in the magnesium alloy sheet S. Accordingly, it is possible to maintain a superior product quality.
  • the heaters H may be arranged in a layout different from that shown in FIG. 1 provided that they are still able to heat the magnesium alloy sheet S to a predetermined temperature.
  • the heating furnace 4 it is not necessary for the heating furnace 4 to be constructed such that the magnesium alloy sheet S is able to move smoothly over the table 4 a as in the above described embodiment, and it is also possible, for example, for a plurality of transporting rollers which are arranged in parallel with each other to be driven to rotate by a drive source such as a motor or the like so that they transport the magnesium alloy sheet S.
  • a manufactured magnesium alloy sheet does not require a mandrel, and it is possible to prevent the occurrence of cracks in the sheet and maintain a superior product quality.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
US12/682,803 2007-10-16 2008-10-16 Recoiling facility for magnesium alloy sheets Abandoned US20110095125A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2007-269059 2007-10-16
JP2007269059A JP5238211B6 (ja) 2007-10-16 マグネシウム合金シートのリコイリング設備
PCT/JP2008/068747 WO2009051177A1 (ja) 2007-10-16 2008-10-16 マグネシウム合金シートのリコイリング設備

Publications (1)

Publication Number Publication Date
US20110095125A1 true US20110095125A1 (en) 2011-04-28

Family

ID=40567439

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/682,803 Abandoned US20110095125A1 (en) 2007-10-16 2008-10-16 Recoiling facility for magnesium alloy sheets

Country Status (8)

Country Link
US (1) US20110095125A1 (ru)
EP (1) EP2210679B1 (ru)
KR (1) KR20100060023A (ru)
CN (2) CN103949493B (ru)
CA (1) CA2702733A1 (ru)
RU (1) RU2443487C2 (ru)
TW (1) TWI389747B (ru)
WO (1) WO2009051177A1 (ru)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11479837B2 (en) * 2016-09-27 2022-10-25 Novelis Inc. Pre-ageing systems and methods using magnetic heating
US11785678B2 (en) 2016-09-27 2023-10-10 Novelis Inc. Rotating magnet heat induction

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102059394A (zh) * 2010-12-01 2011-05-18 河南东力重工机械有限公司 一种数控金属板分剪机
CN105149377B (zh) * 2015-09-30 2017-06-30 中镁镁业有限公司 镁合金挤压板在线热风加热装置及加热卷取方法
CN108471647A (zh) * 2018-03-29 2018-08-31 苏州雪牛商贸有限公司 一种用于镁合金的加热装置
CN117798796A (zh) * 2024-02-29 2024-04-02 江苏浩帮重钢制造有限公司 一种钢结构件加工用砂轮切割机及其方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005830A (en) * 1974-05-06 1977-02-01 The Steel Company Of Canada, Limited Mandrelless downcoiler for coil box
US5554235A (en) * 1994-07-07 1996-09-10 Bwg Bergwerk-Und Walzwerk-Machinenbau Gmbh Method of and process for cold-rolling of stainless-steel and titanium-alloy strip
US20060053617A1 (en) * 2002-07-26 2006-03-16 Withold Richert Method and device for the continuous production of metallic strips

Family Cites Families (9)

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US4019359A (en) * 1974-05-06 1977-04-26 The Steel Company Of Canada, Limited Method of hot rolling metal strip
JPS61135420A (ja) * 1984-12-06 1986-06-23 Kawasaki Steel Corp 熱延ストリツプの処理方法
JPH09225518A (ja) * 1996-02-20 1997-09-02 Ishikawajima Harima Heavy Ind Co Ltd コイル端面保加熱装置
JPH1043931A (ja) * 1996-08-05 1998-02-17 Mitsubishi Heavy Ind Ltd スクラップボーラ及びスクラップ巻取り方法
JP4278256B2 (ja) * 2000-01-06 2009-06-10 日本金属株式会社 温間塑性加工方法
JP3521863B2 (ja) * 2000-10-24 2004-04-26 住友金属工業株式会社 マグネシウム合金板の製造方法
RU2215599C1 (ru) * 2002-04-08 2003-11-10 Закрытое акционерное общество "Промышленный центр "МАТЭКС" Способ производства листов и плит из магниевых сплавов
JP2005105358A (ja) * 2003-09-30 2005-04-21 Jfe Steel Kk 熱延鋼板の処理ラインおよび高強度熱延鋼板の製造方法
CN100393463C (zh) * 2006-05-23 2008-06-11 西南铝业（集团）有限责任公司 铝板剪卷生产装置及生产方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005830A (en) * 1974-05-06 1977-02-01 The Steel Company Of Canada, Limited Mandrelless downcoiler for coil box
US5554235A (en) * 1994-07-07 1996-09-10 Bwg Bergwerk-Und Walzwerk-Machinenbau Gmbh Method of and process for cold-rolling of stainless-steel and titanium-alloy strip
US20060053617A1 (en) * 2002-07-26 2006-03-16 Withold Richert Method and device for the continuous production of metallic strips

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11479837B2 (en) * 2016-09-27 2022-10-25 Novelis Inc. Pre-ageing systems and methods using magnetic heating
US11785678B2 (en) 2016-09-27 2023-10-10 Novelis Inc. Rotating magnet heat induction
US11821066B2 (en) 2016-09-27 2023-11-21 Novelis Inc. Systems and methods for non-contact tensioning of a metal strip
US12338520B2 (en) 2016-09-27 2025-06-24 Novelis Inc. Pre-ageing systems and methods using magnetic heating
US12376200B2 (en) 2016-09-27 2025-07-29 Novelis Inc. Rotating magnet heat induction

Also Published As

Publication number Publication date
CN103949493A (zh) 2014-07-30
EP2210679A1 (en) 2010-07-28
RU2010118483A (ru) 2011-11-27
JP2009095850A (ja) 2009-05-07
WO2009051177A1 (ja) 2009-04-23
EP2210679A4 (en) 2011-11-09
RU2443487C2 (ru) 2012-02-27
EP2210679B1 (en) 2012-09-12
KR20100060023A (ko) 2010-06-04
CN101821031A (zh) 2010-09-01
CN103949493B (zh) 2016-03-09
TWI389747B (zh) 2013-03-21
JP5238211B2 (ja) 2013-07-17
TW200936265A (en) 2009-09-01
CA2702733A1 (en) 2009-04-23

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Legal Events

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AS Assignment

Owner name: IHI METALTECH CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAZOE, NOBUHIRO;HONJOU, HISASHI;MATSUMURA, HIDEO;AND OTHERS;REEL/FRAME:025463/0379

Effective date: 20101206

Owner name: IHI CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TAZOE, NOBUHIRO;HONJOU, HISASHI;MATSUMURA, HIDEO;AND OTHERS;REEL/FRAME:025463/0379

Effective date: 20101206

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION