JP2020151754A5 - - Google Patents

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JP2020151754A5
JP2020151754A5 JP2019052695A JP2019052695A JP2020151754A5 JP 2020151754 A5 JP2020151754 A5 JP 2020151754A5 JP 2019052695 A JP2019052695 A JP 2019052695A JP 2019052695 A JP2019052695 A JP 2019052695A JP 2020151754 A5 JP2020151754 A5 JP 2020151754A5
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Japan
Prior art keywords
molding
magnetized
magnetic flux
heating
metal pipe
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JP2019052695A
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Japanese (ja)
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JP2020151754A (en
JP7145800B2 (en
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Claims (4)

成形装置を用いて、金属パイプ材料へ電流を流して通電加熱を行い、金属パイプを成形する成形工程を有する、成形方法であって、
前記成形工程における前記通電加熱で発生する磁束とは逆向きの磁束によって、前記成形装置の構造部材が磁化された状態とする磁化工程を有し、
前記磁化工程の後、前記成形工程を実行する、成形方法。 Using a molding device performs conduction heating by flowing an electric current to the metal pipe material, having a forming step of forming a metallic pipe, a molding method,
It has a magnetization step in which a structural member of the molding apparatus is magnetized by a magnetic flux in the direction opposite to the magnetic flux generated by the energization heating in the molding step.
After the magnetizing step, to perform the forming process, the molding method. 前記磁化工程では、前記成形装置の通電加熱部にて、金属部材に対して、前記成形工程での前記通電加熱とは逆向きに電流を流すことにより、前記構造部材を磁化する、請求項１に記載の成形方法。 In the magnetization step, the structural member is magnetized by passing an electric current through the metal member in the energizing heating section of the molding apparatus in the direction opposite to the energizing heating in the molding step. The molding method described in 1. 金属パイプ材料へ電流を流して通電加熱を行い、金属パイプを成形する成形装置であって、前記通電加熱で発生する磁束とは逆向きの磁束を予め形成し、前記成形装置の構造部材が磁化された状態とする磁化工程を行う成形装置。A molding device that molds a metal pipe by passing an electric current through a metal pipe material to perform energization heating. A magnetic flux opposite to the magnetic flux generated by the energization heating is formed in advance, and the structural member of the molding device is magnetized. A molding device that performs a magnetization process to bring it into a state of being magnetized. 前記磁化工程の後で、前記通電加熱によって加熱された金属パイプ材料を成形する成形工程を行う、請求項３に記載の成形装置。The molding apparatus according to claim 3, wherein after the magnetization step, a molding step of molding a metal pipe material heated by the energization heating is performed.
JP2019052695A 2019-03-20 2019-03-20 molding method Active JP7145800B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019052695A JP7145800B2 (en) 2019-03-20 2019-03-20 molding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019052695A JP7145800B2 (en) 2019-03-20 2019-03-20 molding method

Publications (3)

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JP2020151754A JP2020151754A (en) 2020-09-24
JP2020151754A5 true JP2020151754A5 (en) 2021-08-05
JP7145800B2 JP7145800B2 (en) 2022-10-03

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JP2019052695A Active JP7145800B2 (en) 2019-03-20 2019-03-20 molding method

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023042488A1 (en) * 2021-09-17 2023-03-23 住友重機械工業株式会社 Molding device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001093729A (en) 1999-09-24 2001-04-06 Japan Steel & Tube Constr Co Ltd Method for demagnetizing member
JP2002052432A (en) 2000-08-09 2002-02-19 Nagase Integrex Co Ltd Switching circuit
US7305860B2 (en) 2005-11-10 2007-12-11 Gm Global Technology Operations, Inc. Method for tube forming
CN107921511B (en) 2015-08-28 2019-04-02 住友重机械工业株式会社 Molding machine
JP6611180B2 (en) 2016-03-31 2019-11-27 住友重機械工業株式会社 Molding equipment

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