EP3006196B1 - Mold replacement method and mold platform in bending press - Google Patents

Mold replacement method and mold platform in bending press Download PDF

Info

Publication number
EP3006196B1
EP3006196B1 EP13885966.5A EP13885966A EP3006196B1 EP 3006196 B1 EP3006196 B1 EP 3006196B1 EP 13885966 A EP13885966 A EP 13885966A EP 3006196 B1 EP3006196 B1 EP 3006196B1
Authority
EP
European Patent Office
Prior art keywords
upper die
punch
carriage
press machine
bending press
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.)
Active
Application number
EP13885966.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3006196A1 (en
EP3006196A4 (en
Inventor
Toshihiro Miwa
Kouzi HORIGIWA
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.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP3006196A1 publication Critical patent/EP3006196A1/en
Publication of EP3006196A4 publication Critical patent/EP3006196A4/en
Application granted granted Critical
Publication of EP3006196B1 publication Critical patent/EP3006196B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/16—Making tubes with varying diameter in longitudinal direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/14—Particular arrangements for handling and holding in place complete dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/026—Mounting of dies, platens or press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/028—Loading or unloading of dies, platens or press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation

Definitions

  • the present invention relates to an upper die replacing method of a leading end of a punch in a bending press machine manufacturing a thick welded steel pipe having a large diameter used for a line pipe or the like by performing three-point bending press forming multiple times, and an upper die carriage used for replacing the upper die.
  • UOE steel pipe As a thick steel pipe having a large diameter used for a line pipe, a steel structure or the like, in general, a so-called "UOE steel pipe” has been widely used.
  • the UOE steel pipe is formed so that a material steel plate having predetermined width, length, and thickness is press-formed into a U-shape and then is press-formed into an O-shape, and thereafter, butted parts are welded to obtain a material steel pipe, and the material steel pipe is expanded (so-called pipe expansion) in a circumferential direction to improve roundness.
  • pipe expansion in a circumferential direction to improve roundness.
  • a press bending method As a technique of reducing the press load when manufacturing the thick steel pipe having a large diameter, long length, and high strength, a press bending method has been developed and put into practical use.
  • the three-point bending press forming is performed multiple times while feeding the steel plates in the width direction by a predetermined amount to press-form the steel plate into a substantially cylindrical shape (open pipe) having an opening portion, then, the opening portion of the open pipe is subjected to butt welding and pipe expansion, and the shape thereof is corrected, thereby manufacturing a steel pipe.
  • Fig. 1 is a diagram that schematically illustrates a method of manufacturing a steel pipe using the above-described press bending method.
  • this manufacturing method first, three-point bending press forming is performed multiple times toward a plate width center from one plate width end portion of a material steel plate 1 having both bent (crimping pressed) end portions by combining a punch 2 with a pair of dies 3 to form one half into an arc shape except for the plate width center of the steel plate (first half press), next, similarly, the three-point bending press forming is performed multiple times toward the plate width center from the other plate width end portion to form the remaining one half except for the plate width center of the steel plate into an arc shape, thereby obtaining a substantially C-shape (second half press), finally, the remaining plate width center portion is subjected to press forming (final press) to obtain a substantially cylindrical shape (open pipe) having an opening portion, and thereafter, the steel pipe is generally manufactured by performing butt welding of the opening portion.
  • the material steel plate 1 having both
  • a bending press machine used for the above-described three-point bending press forming has a pair of dies disposed in a feeding direction of a material steel plate at a predetermined gap, and a punch capable of vertically moving between the pair of dies, and is configured to press the material steel plate placed on the dies by the punch, thereby performing bending.
  • the punch includes an upper die, attached to a leading end portion of a punch 2 directly coming into contact with the steel plate as a material to be machined, (hereinafter, simply referred to as a "upper die “), and a punch supporter (hereinafter, also referred to as a "beam”) that is connected to a main body of a press machine and supports the upper die at a leading end thereof, and the upper die and the punch supporter are commonly fastened by fixing bolts in an attachable and detachable manner.
  • the beam is an integral body, but the upper die is commonly constituted by a plurality of segments so that the attachment and detachment operation and the handling are easily performed.
  • EP 0 530 375 A1 describes a system for working on plate material including a back gauge device having a mold changing function and a function of positioning the plate material in a longitudinal direction thereof.
  • JP S57 97625 U describes an actuated die replacing device for U-press work.
  • EP 0 392 795 A2 is directed to a die exchange apparatus for the use of a press brake.
  • the method is performed by a series of processes as follows. That is, after mounting a new upper die on a large dummy plate, the dummy plate is conveyed in a horizontal direction using conveyance facilities configured to supply a material steel plate to a press machine, the new upper die is moved to a vicinity just below a punch (beam), then, the punch is lowered to become a state of being in contact with the dummy plate of a position near the new upper die, fastening of bolts is released to detach the upper die from a beam leading end, then, the dummy plate is moved by the above-described conveyance facilities to move the new upper die to just below the beam, the new upper die is fitted to the beam leading end, and is attached thereto by being fastened with bolts.
  • Patent Literatures 1 to 4 are techniques that can be used only for small bending machines and punch press machines, but are not techniques that can be directly applied to replacement of the upper die of the bending press machine for manufacturing the large diameter.
  • the document JP S57 97625 U discloses a method according to the preamble of claim 1 and a combination according to the preamble of claim 6.
  • the present invention has been made in view of the above-described problems of the related art, and an object thereof is to suggest an upper die replacing method by which the replacement of the upper die of a leading end of a punch in a bending press machine can be efficiently and safely performed in a short time, and to provide an upper die carriage for use in the method.
  • the inventors have extensively studied to find a solution of the above-described problems. As a result, the inventors found out that by providing an upper die carriage capable of collectively mounting a plurality of divided upper die segments, and moving the carriage between a pair of dies below a press machine along a longitudinal direction of a punch, it is possible to accurately position and supply the upper die just below the punch, and it is preferable that the movement of the carriage be performed using a steel pipe carrying-out device that is installed in the press machine to carry out the steel pipe after press forming, which has led to the development of the present invention.
  • the upper die replacing method of the present invention is defined by claim 1.
  • Dependent claims are related to optional features and particular embodiments.
  • the combination of an upper die carriage and a bending press machine of the present invention is defined by claim 6.
  • Dependent claims are related to optional features and particular embodiments.
  • an upper die replacing method of a leading end of a punch in a bending press machine that bends a steel plate on dies by a pair of dies and a punch vertically moving between the dies, wherein carry-in of the upper die to just below the punch and carry-out of the upper die from just below the punch are performed by mounting the upper die on an upper die carriage capable of moving between the pair of dies in a longitudinal direction of the punch.
  • the carry-in of the upper die carriage to just below the punch and the carry-out from just below the punch are performed using an open steel pipe carrying-out device disposed in the press machine.
  • detachment of the upper die from the leading end of the punch and attachment of the upper die to the leading end of the punch are performed in a state in which an upper die storing unit of the upper die carriage is lifted and is brought into contact with the leading end of the punch.
  • position adjustment of the upper die mounted on an upper die table in the upper die storing unit in a direction perpendicular to the longitudinal direction of the punch is performed by moving the upper die table while mounting the upper die.
  • the upper die replacing method of the present invention when the upper die is divided into a plurality of segments, replacement of the upper die is collectively performed.
  • the plurality of segments are divided into a plurality of sets connected by a shim, and loading and unloading to the upper die carriage are performed in the unit of the set.
  • the upper die carriage of the present invention further includes an upper die storing unit that stores an upper die, and a lifting/lowering mechanism that lifts and lowers the upper die storing unit.
  • the upper die carriage of the present invention further includes a position adjusting mechanism that performs position adjustment of the upper die stored in the upper die storing unit in a direction perpendicular to the longitudinal direction of the punch for each upper die table on which the upper die is mounted.
  • the present invention relates to a method of replacing an upper die attached to a leading end of a punch supporter in a bending press machine for bending a steel plate on dies by a pair of dies and a punch vertically moving between the dies.
  • Fig. 3 is a diagram illustrating a structure of the punch of a bending press machine used in the present invention.
  • the punch is constituted by a punch supporter 4 (beam) attached to a main body of a press machine 7, and an upper die 5 attached to a leading end (lower end) of the beam by fixing bolts 6.
  • a punch supporter 4 beam
  • an upper die 5 attached to a leading end (lower end) of the beam by fixing bolts 6.
  • grooves 8 to which a beam lower portion is fitted is formed, and a spacer 9 is inserted between the groove portion and the beam leading end.
  • the upper die may be a single body, but is typically divided into a plurality of segments in consideration of productivity and handling properties of the upper die.
  • carry-in of the upper die to a lower position of the press machine and carry-out from the lower position of the press machine are performed by moving the upper die while being mounted on a dummy plate.
  • from the necessity to move the punch it was necessary to perform the replacement operation while keeping the power of the press machine on. For this reason, there was also need for multiple safety measures to ensure safety, and adverse effects on productivity were inevitable.
  • carry-in of the upper die to just below the punch and carry-out of the metal from just below the punch are performed by being mounted on the upper die carriage that moves between the pair of dies installed below the press machine in a longitudinal direction of the punch.
  • the upper die carriage is placed at a position different from the press machine during press operation, and when performing the replacement of the upper die, the upper die carriage is mounted on a carry-out line to which the steel pipe (open pipe) after the press forming is carried out, by a crane or the like.
  • the upper die carriage has a length that is able to collectively mount the upper die divided into the plurality of segments, and at a press machine side end portion in the longitudinal direction of the carriage, for example, an upward (or downward) hook is provided.
  • another connection mechanism connected to the connection mechanism of the upper die carriage for example, a downward (or upward) hook is provided.
  • the carry-in of the upper die carriage from the press machine to just below the press machine can be performed, by connecting the connection mechanism of the upper die carriage side with the connection mechanism of the steel pipe carrying-out device side, and by moving the steel pipe carrying-out device in an opposite direction to the direction at the time of carrying out the steel plate.
  • carry-out of the upper die carriage from just below the press machine to the outside of the press machine can be performed, by bringing an extruding tool provided in the steel pipe carrying-out device for carrying out the steel pipe after the press forming into contact with the upper die carriage, or by connecting the connection mechanism of the upper die carriage side with the connection mechanism of the steel pipe carrying-out device side, and by moving the steel pipe carrying-out device in the carrying-out direction of the steel pipe.
  • moving means (driving source) of the steel pipe carrying-out device is not particularly limited, and may be driven by, for example, a chain, a belt or the like connected to a power source such as a motor.
  • the upper die carriage may run on a conveyance line constituted by a V roll, or may run on a rail by mounting wheels to the lower part of the upper die carriage, both may be used in combination with each other, and may not be particularly limited.
  • V roll it is preferred to adopt a structure in which during the press operation, the V roll below the press machine moves downwards and retracts so as not to disturb the operation, and the V roll is lifted only when replacing the upper die.
  • Fig. 4 illustrates a cross-section in a direction (hereinafter, referred to as a "width direction") perpendicular to the longitudinal direction of the punch, the upper die carriage 10 is constituted by a carriage base 11, and an upper die storing unit 12 in the upper portion, the cross-sectional shape in the width direction of the upper die storing unit 12 is a H-shape, and an upper die table 13 for mounting the upper die is provided in an upper concave part.
  • a width direction hereinafter, referred to as a "width direction”
  • a position adjusting bolt 14 as a position adjusting mechanism of the upper die table 13 is provided, and by rotating the bolt, the width direction position of the upper die table 13 in the concave part of the upper die storing unit can be finely adjusted in the state of attaching the upper die.
  • the position adjusting bolt 14 it is possible to easily, quickly, and accurately fit a new upper die at the leading end of the punch supporter (beam).
  • the carriage base 11 and the upper die storing unit 12 are separated from each other, and it is possible to lift and lower the upper die storing unit 12 by a hydraulic jack 15 as a lifting/lowering function disposed on the carriage base side.
  • a hydraulic jack 15 as a lifting/lowering function disposed on the carriage base side.
  • the replacement of the plurality of segments is preferably performed integrally and collectively rather than the individual replacement, in view of the operating efficiency.
  • the upper die constituted by the plurality of segments is divided into a plurality of sets obtained by connecting the small number of the plurality of segments and be mounted on the upper die carriage by the set unit.
  • the set preferably has a structure in which parallel pins are embedded in a joint part of each segment and the segments are fastened by the bolts, where the length of the set is based on the length of the spacer inserted into the groove portions 8 formed on the upper die.
  • the connection part between each of the sets is preferably configured so that the spacer of one set protrudes from the end portion of the set, the end portion of the other set has a spacer omission unit to which the protruded spacer is fitted, and both sets are connected to each other via the spacer.
  • Figs. 7(a) and 7(b) illustrate an example in which one upper die divided into nine segments is divided into three sets made up of three segments.
  • the order of mounting the plurality of sets on the upper die carriage be carried out first from the set provided with the spacer omission unit.
  • the upper die replacement of the bending press machine capable of manufacturing a welded steel pipe having an outer diameter of 20 to 56 inches and a pipe wall thickness of 12.7 to 50.8 mm is performed by the use of two methods of the method (Comparative Example) of the related art using the dummy plate described in [0011] and the method (Example of the present invention) of replacing the upper die of the present invention, and the required times thereof are compared.
  • the upper die has a total length of 13.5 m, and is divided into nine segments as illustrated in Figs. 7(a) and 7(b) , and three segments are used as one set to perform handling.
  • Example of the present invention can be reduced to about 1/3 as compared to Comparative Example of the related art.
EP13885966.5A 2013-05-31 2013-05-31 Mold replacement method and mold platform in bending press Active EP3006196B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/065141 WO2014192129A1 (ja) 2013-05-31 2013-05-31 ベンディングプレス機における金型交換方法と金型台車

Publications (3)

Publication Number Publication Date
EP3006196A1 EP3006196A1 (en) 2016-04-13
EP3006196A4 EP3006196A4 (en) 2016-08-24
EP3006196B1 true EP3006196B1 (en) 2022-01-12

Family

ID=51988198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13885966.5A Active EP3006196B1 (en) 2013-05-31 2013-05-31 Mold replacement method and mold platform in bending press

Country Status (5)

Country Link
EP (1) EP3006196B1 (ru)
JP (1) JP5967395B2 (ru)
CN (1) CN105246674B (ru)
RU (1) RU2630094C2 (ru)
WO (1) WO2014192129A1 (ru)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106736278A (zh) * 2016-12-12 2017-05-31 邓惠芬 弯曲导电嘴的加工方法
CN110681736B (zh) * 2019-10-17 2020-12-18 赣州市恒邦金属制品有限公司 一种具有双换功能的高效折弯设备
CN111069374A (zh) * 2019-12-26 2020-04-28 华钰汽配有限公司 一种汽车前牌照板支架的弯折装置及方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5797625U (ru) * 1980-12-04 1982-06-16
JPS6068114A (ja) * 1983-09-22 1985-04-18 Nippon Steel Corp Ｕｏ鋼管のｕプレス成形用金型搬出入方法及び装置
SU1480949A1 (ru) * 1987-01-23 1989-05-23 Предприятие П/Я А-7087 Устройство дл смены штампов
US5134873A (en) * 1989-04-10 1992-08-04 Yamazaki Mazak Kabushiki Kaisha Die exchange apparatus for the use of a press brake
SU1697942A1 (ru) * 1989-10-16 1991-12-15 Нижегородский Автомобильный Завод Устройство дл смены штампов пресса
WO1992016318A1 (en) * 1991-03-22 1992-10-01 Amada Company, Limited System for working on plate material
JP2532830Y2 (ja) * 1991-12-27 1997-04-16 相生精機株式会社 金型等の移載装置
JP2871532B2 (ja) * 1995-06-20 1999-03-17 住友金属工業株式会社 Ｕｏ鋼管の製造方法
JP3204165B2 (ja) 1997-06-16 2001-09-04 村田機械株式会社 パンチプレス機
JP2001150032A (ja) 1999-09-06 2001-06-05 Amada Eng Center Co Ltd 曲げ加工機における金型交換方法およびその装置
JP2001276936A (ja) 2000-03-29 2001-10-09 Murata Mach Ltd 工具カートリッジ交換装置
JP4284848B2 (ja) 2000-09-20 2009-06-24 村田機械株式会社 パンチプレス
CN2491147Y (zh) * 2001-04-20 2002-05-15 左年传 自控螺旋千斤顶工字钢压弯机
US7568371B2 (en) * 2006-01-17 2009-08-04 Cyril Bath Company Stretch-forming machine and method
CN202845584U (zh) * 2012-09-28 2013-04-03 无锡市亚青机械厂 一种压弯机水箱盖板压形模结构

Also Published As

Publication number Publication date
JPWO2014192129A1 (ja) 2017-02-23
CN105246674B (zh) 2017-05-10
WO2014192129A1 (ja) 2014-12-04
CN105246674A (zh) 2016-01-13
JP5967395B2 (ja) 2016-08-10
RU2015155435A (ru) 2017-07-05
EP3006196A1 (en) 2016-04-13
EP3006196A4 (en) 2016-08-24
RU2630094C2 (ru) 2017-09-05

Similar Documents

Publication Publication Date Title
EP3006196B1 (en) Mold replacement method and mold platform in bending press
CN206083515U (zh) 一种高精密数控折弯机
JP6607102B2 (ja) 溶接鋼管の成形方法および成形装置並びに溶接鋼管の製造方法および製造設備
CN105682815A (zh) 用于更换矫直机的辊的设备
KR20050047068A (ko) 금형교환용 대차
JP3504546B2 (ja) ドラム缶溶接部押圧装置及び方法、並びにドラム缶製造装置
JP6075768B2 (ja) プレス加工方法及びこれに用いる治具
CN104476192B (zh) 一种罐体自动卷制成型装置及成型方法
JP3938918B2 (ja) 管溶接スタンドにおけるロール交換方法およびこのロール交換方法を適用した縦継ぎ目管溶接機
KR20220091611A (ko) 적층 철심의 제조 장치 및 제조 방법
JP5593191B2 (ja) 金属管の製造装置
JP2006081378A (ja) 積層鉄心の製造方法及びその製造装置
CN102319776B (zh) 电解槽壳体端板结构的加工装置及加工方法
CN108788573B (zh) 纵缝自动焊接设备
CN109013971B (zh) 一种汽车驱动后桥支架左、右件一次成形模具及加工工艺
JP2005230892A (ja) 圧延機用ロール交換装置
CN107651583B (zh) 一种海洋平台起重机塔身的制造方法
CN212598044U (zh) 一种用于有色金属压延材的生产装置
CN104338799A (zh) 一种钢板矫平机
KR101462921B1 (ko) 스트레치 벤딩 금형 교환장치
CN212174326U (zh) 一种锻造生产用送料装置
KR101499958B1 (ko) 하이드로 포밍을 위한 예비 성형장치
CN220717359U (zh) 一种中部槽整形工装
JP3053534B2 (ja) スクイズロールスタンド
KR101478484B1 (ko) 자동차 조향컬럼용 이너튜브 내면의 프레스 가공방법

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20151124

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

A4 Supplementary search report drawn up and despatched

Effective date: 20160726

RIC1 Information provided on ipc code assigned before grant

Ipc: B21D 5/01 20060101ALI20160720BHEP

Ipc: B21C 37/08 20060101ALI20160720BHEP

Ipc: B30B 15/02 20060101AFI20160720BHEP

Ipc: B21D 37/04 20060101ALI20160720BHEP

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200212

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210922

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: JFE STEEL CORPORATION

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602013080701

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1462094

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220215

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20220112

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1462094

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220512

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220412

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220413

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220512

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602013080701

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

26N No opposition filed

Effective date: 20221013

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230411

Year of fee payment: 11

Ref country code: DE

Payment date: 20230404

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230406

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220112