EP3778052A4 - Method and device for molding square tube - Google Patents

Method and device for molding square tube Download PDF

Info

Publication number
EP3778052A4
EP3778052A4 EP19785769.1A EP19785769A EP3778052A4 EP 3778052 A4 EP3778052 A4 EP 3778052A4 EP 19785769 A EP19785769 A EP 19785769A EP 3778052 A4 EP3778052 A4 EP 3778052A4
Authority
EP
European Patent Office
Prior art keywords
square tube
molding square
molding
tube
square
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.)
Withdrawn
Application number
EP19785769.1A
Other languages
German (de)
French (fr)
Other versions
EP3778052A1 (en
Inventor
Jilong Yin
Masato Nishii
Tomoyasu Nakano
Feizhou Wang
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.)
Nakata Manufacturing Co Ltd
Original Assignee
Nakata Manufacturing 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
Application filed by Nakata Manufacturing Co Ltd filed Critical Nakata Manufacturing Co Ltd
Publication of EP3778052A1 publication Critical patent/EP3778052A1/en
Publication of EP3778052A4 publication Critical patent/EP3778052A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B21C37/155—Making tubes with non circular section
    • 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
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B21D5/12—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
    • 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
    • B21D15/00—Corrugating tubes
    • B21D15/02—Corrugating tubes longitudinally
    • 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
    • B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP19785769.1A 2018-04-13 2019-04-12 Method and device for molding square tube Withdrawn EP3778052A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018077349 2018-04-13
PCT/JP2019/015917 WO2019198805A1 (en) 2018-04-13 2019-04-12 Method and device for molding square tube

Publications (2)

Publication Number Publication Date
EP3778052A1 EP3778052A1 (en) 2021-02-17
EP3778052A4 true EP3778052A4 (en) 2022-01-05

Family

ID=68163685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19785769.1A Withdrawn EP3778052A4 (en) 2018-04-13 2019-04-12 Method and device for molding square tube

Country Status (6)

Country Link
US (1) US20210170465A1 (en)
EP (1) EP3778052A4 (en)
JP (1) JP6839786B2 (en)
KR (1) KR20200139809A (en)
CN (1) CN112368089A (en)
WO (1) WO2019198805A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230145306A1 (en) 2020-04-09 2023-05-11 Nakata Manufacturing Co., Ltd. Method and apparatus for manufacturing metal pipe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137321A (en) * 1984-07-27 1986-02-22 Nippon Steel Metal Prod Co Ltd Forming method of angular steel pipe
EP1169150A1 (en) * 1999-04-21 2002-01-09 Nakata Manufacturing Company Limited Method for manufacturing a pipe with a not circular cross-section and device therefor
EP1815921A1 (en) * 2004-11-26 2007-08-08 Nakata Manufacturing Company Limited Roll for molding square tube and method and device for rollingly molding square tube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51133079A (en) * 1975-05-14 1976-11-18 Mitsui Eng & Shipbuild Co Ltd Liquid for detection of iron contents contaminating surfaces of ti mat erials and stainless steel materials
JPH0634810U (en) * 1992-10-09 1994-05-10 住友重機械工業株式会社 Square tube bending correction device
JPH08164426A (en) * 1994-12-13 1996-06-25 Kawasaki Steel Corp Production of square steel tube
JPH10258311A (en) * 1997-03-14 1998-09-29 Dai Ichi High Frequency Co Ltd Manufacture of square metallic tube
JP2004243367A (en) * 2003-02-13 2004-09-02 Aisin Seiki Co Ltd Method and device for adjusting roll forming device
JP5520542B2 (en) * 2009-08-12 2014-06-11 正幸 高嶋 Manufacturing method and manufacturing apparatus for thin metal tube

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6137321A (en) * 1984-07-27 1986-02-22 Nippon Steel Metal Prod Co Ltd Forming method of angular steel pipe
EP1169150A1 (en) * 1999-04-21 2002-01-09 Nakata Manufacturing Company Limited Method for manufacturing a pipe with a not circular cross-section and device therefor
EP1815921A1 (en) * 2004-11-26 2007-08-08 Nakata Manufacturing Company Limited Roll for molding square tube and method and device for rollingly molding square tube

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2019198805A1 *

Also Published As

Publication number Publication date
EP3778052A1 (en) 2021-02-17
KR20200139809A (en) 2020-12-14
JP6839786B2 (en) 2021-03-10
WO2019198805A1 (en) 2019-10-17
JPWO2019198805A1 (en) 2020-08-20
CN112368089A (en) 2021-02-12
US20210170465A1 (en) 2021-06-10

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: WANG, FEIZHOU

Inventor name: NAKANO, TOMOYASU

Inventor name: NISHII, MASATO

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