WO2014188468A1 - Dispositif de presse à cintrer, procédé de presse à cintrer, dispositif de production de tube d'acier, et procédé de production de tube d'acier - Google Patents

Dispositif de presse à cintrer, procédé de presse à cintrer, dispositif de production de tube d'acier, et procédé de production de tube d'acier Download PDF

Info

Publication number
WO2014188468A1
WO2014188468A1 PCT/JP2013/003204 JP2013003204W WO2014188468A1 WO 2014188468 A1 WO2014188468 A1 WO 2014188468A1 JP 2013003204 W JP2013003204 W JP 2013003204W WO 2014188468 A1 WO2014188468 A1 WO 2014188468A1
Authority
WO
WIPO (PCT)
Prior art keywords
punch
open
bending press
amount
pipe
Prior art date
Application number
PCT/JP2013/003204
Other languages
English (en)
Japanese (ja)
Inventor
俊博 三輪
正之 堀江
宏司 堀際
Original Assignee
Ｊｆｅスチール株式会社
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スチール株式会社 filed Critical Ｊｆｅスチール株式会社
Priority to EP13885094.6A priority Critical patent/EP3000542B1/fr
Priority to JP2015517928A priority patent/JP6137307B2/ja
Priority to RU2015150037A priority patent/RU2640486C2/ru
Priority to CN201380076758.7A priority patent/CN105228766B/zh
Priority to PCT/JP2013/003204 priority patent/WO2014188468A1/fr
Publication of WO2014188468A1 publication Critical patent/WO2014188468A1/fr

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
    • B21D5/004—Bending sheet metal along straight lines, e.g. to form simple curves with program control
    • 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
    • B21D5/006—Bending sheet metal along straight lines, e.g. to form simple curves combined with measuring of bends
    • 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
    • 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
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • 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

Definitions

  • the present invention relates to a bending press apparatus and a bending press method for manufacturing a steel pipe, and a steel pipe manufacturing apparatus and a steel pipe manufacturing method.
  • Bending press is a pressing method used when a product having a desired shape is manufactured by pressing (pressing) a plurality of passes (for example, Patent Document 1).
  • the bending press is a method for manufacturing a steel pipe having a substantially circular cross-sectional shape by sequentially forming different portions of a steel plate as a raw material. For this reason, it is possible to form a thicker and stronger steel pipe with less force than in the case of the UOE method in which the entire circumference is collectively formed.
  • FIG. 5 shows a method for forming a steel pipe by a bending press.
  • the outline is obtained by bending both ends of the steel plate before pressing (edge-crimping).
  • the punch 2 forms the right side of the plate width center of the steel plate 1 with, for example, 4 to 8 passes (a).
  • the left side of the plate width center of the steel plate 1 is formed with the same number of passes as the right side (for example, 4 to 8 passes) (b).
  • the central part of the plate width is pressed to form a circular cross section (c).
  • the pass that is pressed at the final time is called the final press, and the formed steel plate is called the open pipe 3.
  • Fig. 6 is a schematic diagram of an open tube.
  • the open tube 3 is a tube in which a plate material as a material is formed into a cylindrical shape, and plate end portions (open seam edges) 31 a and 31 b facing each other are not welded. .
  • the distance a between the facing open seam edges is a seam gap.
  • the tube axis direction L of the open tube 3 coincides with the longitudinal direction of the punch.
  • ⁇ Steel pipes can be manufactured by butting open seam edges of open pipes formed by bending press.
  • this welding process first, in the continuous tacking process after forming the seam gap, the open pipe is restrained by a continuous tacking device (continuous tacking welder), and the seam gap of the open pipe is closed.
  • temporary welding temporary welding
  • main welding main welding
  • inner welding inside welding
  • outside welding generally submerged arc welding (submerged arc welding) welding
  • the final press adjusts the open pipe seam gap by gradually increasing the amount of punch reduction.
  • the punch press amount of the final press is increased, the seam gap amount is decreased. Conversely, when the punch press amount is small, the seam gap amount is increased.
  • the punch reduction amount is increased, and even after the open seam edge contacts the punch support portion, the punch reduction amount is further increased. There is a technology to bend the open pipe.
  • the seam gap amount at the time of the final press has been confirmed only by the operator's visual inspection. For this reason, the final press is terminated with a seam gap amount that is so wide that the punch reduction amount is insufficient and cannot be constrained continuously, or conversely, the punch reduction amount is excessive and the seam gap amount becomes too small. There is a fear.
  • an object of the present invention is to provide a bending press apparatus and a bending press method capable of appropriately managing the seam gap amount of an open pipe.
  • the problems of the present invention can be solved by the following means.
  • a punch supporting portion that passes through the open seam edge of the formed open pipe to support the punch, and moves in the direction of reducing the material to be formed together with the punch or in the direction of releasing the reduction.
  • An intensity of measurement light that includes a projector and a light receiver provided on the punch support portion, and reaches the light receiver through an optical path that is emitted from the light projector and connects between the outside and the inside of the molded open tube
  • An open seam edge measuring device for measuring a gap amount between the punch support portion and the open seam edge based on a change caused by the optical path being blocked by an open seam edge of the open tube;
  • the bending press apparatus further comprising: a control unit that controls an amount of pressing down the punch based on a gap amount measured by the open seam edge measuring apparatus. 2.
  • the bending press apparatus according to 1, wherein the measurement light is laser light. 3.
  • the bending press apparatus according to 1 or 2 wherein the light projector is provided outside the molded open tube. 4). 4.
  • the bending press apparatus according to any one of claims 1 to 3, wherein the open seam edge measuring apparatus is attached at least at three positions, ie, near the start and end of the punch in the longitudinal direction and substantially at the center. 5.
  • a steel pipe manufacturing apparatus having the bending press apparatus according to any one of 1 to 4. 6).
  • a punch supporting portion that passes through the open seam edge of the formed open pipe to support the punch, and moves in the direction of reducing the material to be formed together with the punch or in the direction of releasing the reduction.
  • a projector and a light receiver By the open seam edge of the open tube blocking the light path, the intensity of the measurement light that is emitted from the projector and passes through the optical path connecting the outside and inside of the molded open tube and reaches the light receiver. Based on the change, measure the gap amount between the punch support and the open seam edge, The amount of pressing down the punch is controlled based on the measured interval, Bending press method. 7).
  • the present invention it is possible to appropriately manage the seam gap amount of the open pipe and perform bending pressing. For this reason, since the manufacturing efficiency of an open pipe improves and the manufacturing efficiency of a steel pipe also improves in connection with this, it is very useful industrially.
  • a bending press apparatus includes an open seam edge measuring device capable of monitoring a seam gap amount in a final press of an open pipe, and a punch reduction amount based on information measured by the measuring device. Is controllable.
  • FIG. 1 is a schematic diagram for explaining a configuration of an open seam edge measuring device of a bending apparatus according to an embodiment of the present invention and a method for measuring a seam gap amount of an open pipe according to the configuration, in a direction orthogonal to a pipe axis direction.
  • 3 is an open tube
  • 4 is a projector
  • 5 is a light receiver
  • 6 is a light beam
  • 22 is a punch
  • 21 is a punch support.
  • 21a is an upper part of the punch support part
  • 21b is a lower part of the punch support part 21, which are located outside and inside the open tube 3 when performing the final punch, respectively.
  • “a” represents a seam gap amount
  • “a 1” and “a 2” represent the distance between the punch support portion 21 and the open seam edge of the open pipe, ie, the gap amount.
  • the open seam edge measuring apparatus of the illustrated bending press apparatus is attached to the projector 4 attached to the upper portion 21a of the punch support portion 21 of the punch 22 and to the lower portion 21b of the punch support portion 21 relative to the light emitting direction of the projector 4. It has a light receiver 5. As a result, an optical path that connects the inside and the outside of the open tube 3 is formed between the projector 4 and the light receiver 5. When the seam gap amounts a1 and a2 are reduced, a part or the whole of the optical path is blocked by the open seam edge. Therefore, it is possible to measure the seam gap amounts a1 and a2 by detecting the change in the intensity of the measurement light that reaches the light receiver 5 through this optical path.
  • the light projector 4 and the light receiver 5 are attached to the left and right of the punch support portion 21 so as to be orthogonal to the longitudinal direction of the punch support portion 21 (the tube axis direction of the open tube), and the light receiver 5 is also opposed to each laser projector.
  • the punch support part 21 moves together with the punch in the direction of rolling down the steel material and in the direction of releasing the rolling down. Therefore, it is preferable that the light projector 4 and the light receiver 5 are attached to the punch support portion 21 via a member made of a material or a mechanism that cuts off vibrations during press work, because the gap measurement accuracy is improved. For example, it can be attached via a resin layer having a vibration absorbing function.
  • the light beam emitted from the light projector 4 toward the light receiver 5 can measure the gap amounts a1 and a2 between the punch support portion 21 and the open seam edges 31a and 31b of the open tube 3 at the start of the final punch pressure reduction.
  • the irradiation shape is not particularly defined. That is, the light source of the projector 4 may be a single light source that can emit a light beam having a cross section with a width that allows the gap amounts a1 and a2 to be measured. Alternatively, a plurality of minute light sources may be arranged in a range in which the gap amounts a1 and a2 can be measured. If the light projector 4 is a plurality of laser light sources arranged at equal intervals on a straight line, and the light receiver 5 is also capable of measuring laser light at each facing position, calculation for obtaining the seam gap amount a is easy and preferable. .
  • the seam gap amount a is the sum of the thickness of the punch support portion 21 and the gap amount a1 and the gap amount a2.
  • the type of laser beam is not particularly limited, but visible light that can be visually observed by an operator is desirable.
  • the open seam edge measuring device has a calculation function for calculating the reduction amount of the punch 22 using the seam gap amount a as one of the calculation factors, and a control function for outputting the obtained reduction amount to the pressing function of the bending press device.
  • the projector 4 is above the light receiver 5 (outside of the open tube)
  • the light receiver 5 is above the projector 4 (outside of the open tube). It does not matter.
  • a device having the functions of the light projector and the light receiver is arranged at the position 4 in the figure, and at the position 5 the position 4 is provided. You may provide the reflecting plate which reflects the light emitted from 4 to the position of 4. In this case, the light emitted from the light projector travels back and forth along the optical path connecting the outside and inside of the open tube and reaches the light receiver. Also in this case, the positions of the open seam edges 31a and 31b of the open tube 3 can be known from the intensity of the light reaching the light receiver, and the gap amounts a1 and a2 can be measured.
  • FIG. 2 is a schematic diagram showing a schematic configuration example of an open seam edge measuring apparatus and a punch reduction amount control system.
  • the light beam 6 emitted from the projector 4 reaches the light receiver 5. If the open seam edges 31 a and 31 b of the open tube 3 exist between the projector 4 and the light receiver 5, only a part of the light beam 6 emitted from the projector 4 reaches the light receiver 5.
  • the detection output of the light receiving unit 5 is input to the detection circuit 40, and the gap amounts a1 and a2 that are the distance between the punch support unit 22 and the open seam edges 31a and 31b of the open tube are measured.
  • the punch pressure reduction amount control unit 421 calculates how much punch pressure reduction is required with respect to the gap amounts a1 and a2 based on the result of the preliminary test in advance or the past results. Then, the punch 2 is commanded to the punch 2 for the amount of punch reduction. The punch 2 performs the reduction with the instructed punch reduction amount.
  • the open seam edge measuring apparatus is also received at at least three locations (near both ends and approximately the center) in the tube axis direction of the open tube, that is, the longitudinal direction of the punch support portion 21.
  • the change tendency of the seam gap amount can be grasped over the entire tube axis direction of the open tube. Based on this grasp, for example, by adjusting the punch reduction amount in the longitudinal direction of the punch, it is possible to make the seam gap amount small and uniform with respect to the total length in the tube axis direction of the open pipe.
  • a preferable press work by the bending press apparatus according to the present invention is as follows.
  • the plastic is deformed by performing a reduction with a predetermined reduction amount.
  • the amount of reduction is, for example, within a range in which the open seam edge of the open tube does not contact the punch support portion, or within a range in which the open seam edge is separated from the punch support portion when the reduction force is unloaded even after contact.
  • the rolling force is unloaded, and the seam gap amount of the unloaded pipe is measured.
  • the punch reduction amount setting is increased based on the seam gap amount, and reduction is performed again. This operation is repeated until a predetermined seam gap amount is reached.
  • the punch reduction amount based on the seam gap amount can be set by referring to the result of the preliminary test or the past results.
  • the steel pipe manufacturing apparatus may include, in addition to the above-described bending press apparatus, a continuous tack welding apparatus, an inner surface welding apparatus, an outer surface welding apparatus, and, if necessary, a pipe expanding apparatus. preferable.
  • the open pipe manufactured using the bending press apparatus by the above method is carried out from the bending press apparatus.
  • the open seam gap of the open pipe is continuously tack-welded using a continuous tack welding apparatus, and then main welding is performed in the order of inner surface welding and then outer surface welding.
  • the roundness of the steel pipe can be improved by expanding the pipe using the pipe expanding device with respect to the steel pipe subjected to the main welding.
  • the pipe expansion ratio ratio of the outer diameter change amount before and after the pipe expansion to the outer diameter of the pipe before the pipe expansion
  • the tube expansion rate is preferably in the range of 0.5% to 1.2%.
  • a steel pipe having an outer diameter of 20 inches to 56 inches and a tube thickness of 12.7 mm to 50.8 mm was manufactured under two conditions, with or without using the open seam edge measuring device of the bending press apparatus according to the present invention.
  • the open seam edge measuring device was applied at the time of final pressing of the bending press device.
  • an open seam edge measuring device was used, it was possible to reduce variations in the seam gap amount. For this reason, it is possible to reduce the maximum value of the seam gap amount, and there is no case where it cannot be restrained by the continuous plate attaching apparatus. Also, the open seam edge did not come into strong contact with the punch support.
  • this invention is not limited to this, Various deformation
  • the projector and the light receiver are provided on the left and right sides of the punch support portion, it is possible to accurately measure the seam gap amount even when the left and right gap amounts a1 and a2 cannot be made the same. However, if the left and right gap amounts a1 and a2 can be made the same, the projector and the light receiver can be provided only on either the left or right side.
  • the light source By making the light source have a cross section of a predetermined width, or by arranging a plurality of minute light sources in a range of a predetermined width, it becomes possible to increase the resolution of gap amount measurement. . However, it is possible to detect that the gap amount has fallen below a certain value even if only one minute light source is provided on both the left and right sides of the punch support portion or only one of the left and right sides. Even in this case, for example, if the step of increasing the punch reduction amount in the final press is reduced, the gap amount can be appropriately managed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention concerne un dispositif de presse à cintrer pouvant gérer de manière appropriée l'écartement des joints d'un tube ouvert; et un dispositif de production d'un tube d'acier. Le dispositif de presse à cintrer, qui est équipé d'un dispositif de mesure d'un bord de joints ouvert servant à mesurer l'écartement des joints d'un tube ouvert et à régler la réduction de mandrinage d'un poinçon, est caractérisé en ce que ce dispositif de mesure comprend une unité de commande, un circuit de détection, un récepteur de lumière, et un projecteur garnissant le poinçon; mesure l'écartement du bord de joints ouvert d'un tube ouvert formant un élément moulé et une unité de support du poinçon; et contrôle la réduction de mandrinage du poinçon en fonction de l'écartement.
PCT/JP2013/003204 2013-05-20 2013-05-20 Dispositif de presse à cintrer, procédé de presse à cintrer, dispositif de production de tube d'acier, et procédé de production de tube d'acier WO2014188468A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP13885094.6A EP3000542B1 (fr) 2013-05-20 2013-05-20 Dispositif de presse à cintrer, procédé de presse à cintrer, dispositif de production de tube d'acier, et procédé de production de tube d'acier
JP2015517928A JP6137307B2 (ja) 2013-05-20 2013-05-20 ベンディングプレス装置およびベンディングプレス方法ならびに鋼管の製造装置および鋼管の製造方法
RU2015150037A RU2640486C2 (ru) 2013-05-20 2013-05-20 Гибочный пресс, способ прессовой гибки, устройство для производства стальных труб и способ производства стальных труб
CN201380076758.7A CN105228766B (zh) 2013-05-20 2013-05-20 弯曲冲压装置及弯曲冲压方法以及钢管的制造装置及钢管的制造方法
PCT/JP2013/003204 WO2014188468A1 (fr) 2013-05-20 2013-05-20 Dispositif de presse à cintrer, procédé de presse à cintrer, dispositif de production de tube d'acier, et procédé de production de tube d'acier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/003204 WO2014188468A1 (fr) 2013-05-20 2013-05-20 Dispositif de presse à cintrer, procédé de presse à cintrer, dispositif de production de tube d'acier, et procédé de production de tube d'acier

Publications (1)

Publication Number Publication Date
WO2014188468A1 true WO2014188468A1 (fr) 2014-11-27

Family

ID=51933063

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/003204 WO2014188468A1 (fr) 2013-05-20 2013-05-20 Dispositif de presse à cintrer, procédé de presse à cintrer, dispositif de production de tube d'acier, et procédé de production de tube d'acier

Country Status (5)

Country Link
EP (1) EP3000542B1 (fr)
JP (1) JP6137307B2 (fr)
CN (1) CN105228766B (fr)
RU (1) RU2640486C2 (fr)
WO (1) WO2014188468A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018168563A1 (fr) 2017-03-15 2018-09-20 Ｊｆｅスチール株式会社 Moule de presse et procédé de fabrication de tuyau en acier
WO2020054051A1 (fr) 2018-09-14 2020-03-19 Ｊｆｅスチール株式会社 Procédé de fabrication de tuyau en acier et matrice de presse

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106180295A (zh) * 2016-08-30 2016-12-07 天津滨海精大制桶有限公司 一种钢桶卷圆成型模具
DE102018211311B4 (de) * 2018-07-09 2020-03-26 Sms Group Gmbh Erweiterte Regelung JCO-Formpresse
DE102020215088A1 (de) * 2020-12-01 2022-06-02 Sms Group Gmbh Verfahren zur Herstellung von Schlitzrohren

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0631340A (ja) * 1992-05-15 1994-02-08 Mannesmann Ag 大きいたわみ長の枠形管曲げプレス
JPH11129031A (ja) 1997-10-29 1999-05-18 Mitsubishi Heavy Ind Ltd プレス成形金型
JP2001311617A (ja) * 2000-04-28 2001-11-09 Sekisui Chem Co Ltd 寸法測定装置及び寸法測定方法
WO2012100802A1 (fr) * 2011-01-27 2012-08-02 Sms Meer Gmbh Presse de formage automatisé de tubes comportant une source lumineuse permettant de mesurer le contour intérieur des tubes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003136142A (ja) * 2001-10-31 2003-05-14 Terumo Corp 金属製の管状体およびその製造方法
RU2290273C2 (ru) * 2004-08-09 2006-12-27 Евгений Юрьевич Зубкевич Устройство для гибки листов из металла
WO2011118783A1 (fr) * 2010-03-26 2011-09-29 住友金属工業株式会社 Procédé et dispositif de fabrication d'un tuyau d'acier uoe
CN102407246A (zh) * 2010-09-26 2012-04-11 上海月月潮钢管制造有限公司 高强度桥梁钢钢管的制造方法
WO2012092909A1 (fr) * 2011-01-07 2012-07-12 Technische Universität Dortmund Procédé pour la transformation incrémentielle de structures en tôle, en particulier pour la transformation de tubes ou similaires
EP2529849B1 (fr) * 2011-05-31 2021-03-10 SMS group GmbH Dispositif et procédé de fabrication de tuyaux fendus à partir de plaques de tôle
JP2013036947A (ja) * 2011-08-11 2013-02-21 Miraikikai Inc 光学式測定装置、プレス機、部品組合せ方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0631340A (ja) * 1992-05-15 1994-02-08 Mannesmann Ag 大きいたわみ長の枠形管曲げプレス
JPH11129031A (ja) 1997-10-29 1999-05-18 Mitsubishi Heavy Ind Ltd プレス成形金型
JP2001311617A (ja) * 2000-04-28 2001-11-09 Sekisui Chem Co Ltd 寸法測定装置及び寸法測定方法
WO2012100802A1 (fr) * 2011-01-27 2012-08-02 Sms Meer Gmbh Presse de formage automatisé de tubes comportant une source lumineuse permettant de mesurer le contour intérieur des tubes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018168563A1 (fr) 2017-03-15 2018-09-20 Ｊｆｅスチール株式会社 Moule de presse et procédé de fabrication de tuyau en acier
KR20190124769A (ko) 2017-03-15 2019-11-05 제이에프이 스틸 가부시키가이샤 프레스 금형 및 강관의 제조 방법
WO2020054051A1 (fr) 2018-09-14 2020-03-19 Ｊｆｅスチール株式会社 Procédé de fabrication de tuyau en acier et matrice de presse
KR20210041032A (ko) 2018-09-14 2021-04-14 제이에프이 스틸 가부시키가이샤 강관의 제조 방법 및 프레스 금형

Also Published As

Publication number Publication date
RU2640486C2 (ru) 2018-01-09
EP3000542A1 (fr) 2016-03-30
CN105228766A (zh) 2016-01-06
RU2015150037A (ru) 2017-05-23
EP3000542A4 (fr) 2016-05-18
EP3000542B1 (fr) 2021-02-24
CN105228766B (zh) 2017-11-28
JP6137307B2 (ja) 2017-05-31
JPWO2014188468A1 (ja) 2017-02-23

Similar Documents

Publication Publication Date Title
JP6137307B2 (ja) ベンディングプレス装置およびベンディングプレス方法ならびに鋼管の製造装置および鋼管の製造方法
US20080289169A1 (en) Method and apparatus for joining plates
JP4883429B2 (ja) Ｕｏｅ鋼管の製造方法および製造装置
WO2013179618A1 (fr) Procédé permettant de former une structure qui présente une section transversale fermée, et dispositif permettant de former une structure qui présente une section transversale fermée
JP2008514429A5 (fr)
JP5633311B2 (ja) 金属円管の製造装置及び製造方法
US8959973B2 (en) Method and device for the coreless forming of hollow profiles
WO2013179617A1 (fr) Procédé permettant de former une structure qui présente une section transversale fermée, et dispositif permettant de former une structure qui présente une section transversale fermée
WO2013059851A3 (fr) Dispositif de pliage de tôles
CN105246609B (zh) 钢管的冲压成形方法及钢管的制造方法
JP2008233085A (ja) 薄板加工における正常な状態の存在を検査するための方法及び装置
JP2017013125A (ja) プレート状のワークを加工する方法
JP4786401B2 (ja) 突合せ溶接金属板の製造方法
CN101918172B (zh) 制造环构件的方法
KR101464967B1 (ko) 롤 포밍 방법
KR101208913B1 (ko) 롤 포밍 시스템용 레이저 용접장치
US20130199697A1 (en) Device for Adjusting a Layer Front
JP4187663B2 (ja) 高加工性溶接管の製造方法
JP6028931B2 (ja) 鋼管の製造方法およびその製造装置
JP2017001041A (ja) 継目溶接部異常判定方法
JP5593191B2 (ja) 金属管の製造装置
KR20120110525A (ko) 맞춤 압연 강판의 압연 롤 장치
JP2007260836A (ja) 形鋼の加工方法および装置
JP2014205265A (ja) ジョイント部圧着装置およびジョイント部圧着方法
KR101250839B1 (ko) 파이프 노치 성형 장치 및 방법

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201380076758.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13885094

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2015517928

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2013885094

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: P1541/2015

Country of ref document: AE

ENP Entry into the national phase

Ref document number: 2015150037

Country of ref document: RU

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE