JPS5987943A - 管材の増肉加工方法および装置 - Google Patents

管材の増肉加工方法および装置

Info

Publication number
JPS5987943A
JPS5987943A JP19773982A JP19773982A JPS5987943A JP S5987943 A JPS5987943 A JP S5987943A JP 19773982 A JP19773982 A JP 19773982A JP 19773982 A JP19773982 A JP 19773982A JP S5987943 A JPS5987943 A JP S5987943A
Authority
JP
Japan
Prior art keywords
thickness
frequency
pipe material
heating coil
tube
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.)
Granted
Application number
JP19773982A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0212657B2 (en]
Inventor
Kenichi Okada
健一 岡田
Hiroshi Asao
浅尾　宏
Hideo Yonemura
米村　秀雄
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP19773982A priority Critical patent/JPS5987943A/ja
Publication of JPS5987943A publication Critical patent/JPS5987943A/ja
Publication of JPH0212657B2 publication Critical patent/JPH0212657B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08—Upsetting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
JP19773982A 1982-11-12 1982-11-12 管材の増肉加工方法および装置 Granted JPS5987943A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19773982A JPS5987943A (ja) 1982-11-12 1982-11-12 管材の増肉加工方法および装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19773982A JPS5987943A (ja) 1982-11-12 1982-11-12 管材の増肉加工方法および装置

Publications (2)

Publication Number Publication Date
JPS5987943A true JPS5987943A (ja) 1984-05-21
JPH0212657B2 JPH0212657B2 (en]) 1990-03-23

Family

ID=16379530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19773982A Granted JPS5987943A (ja) 1982-11-12 1982-11-12 管材の増肉加工方法および装置

Country Status (1)

Country Link
JP (1) JPS5987943A (en])

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07292771A (ja) * 1994-01-24 1995-11-07 Daiwa House Ind Co Ltd 柱・梁接合構造および接合方法
JPH0860747A (ja) * 1994-06-14 1996-03-05 Daiwa House Ind Co Ltd 増肉補強鋼管継手，鋼管柱，およびその製造方法
US5713130A (en) * 1994-01-24 1998-02-03 Daiwa House Industry Co., Ltd. Partially thick-walled elongated metallic member and methods of making and connecting the same
JP2009148805A (ja) * 2007-12-21 2009-07-09 Showa Denko Kk ダイレス加工方法
CN103386451A (zh) * 2012-05-09 2013-11-13 雷帮荣 一种大直径活塞塞头、台阶轴或油缸成型工艺及其加工设备
CN110899591A (zh) * 2019-12-26 2020-03-24 徐州达一重锻科技有限公司 一种全加热钢管加厚成型液压机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52470A (en) * 1975-06-23 1977-01-05 Kobayashi:Kk System for measuring contact resistance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52470A (en) * 1975-06-23 1977-01-05 Kobayashi:Kk System for measuring contact resistance

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07292771A (ja) * 1994-01-24 1995-11-07 Daiwa House Ind Co Ltd 柱・梁接合構造および接合方法
US5713130A (en) * 1994-01-24 1998-02-03 Daiwa House Industry Co., Ltd. Partially thick-walled elongated metallic member and methods of making and connecting the same
JPH0860747A (ja) * 1994-06-14 1996-03-05 Daiwa House Ind Co Ltd 増肉補強鋼管継手，鋼管柱，およびその製造方法
JP2009148805A (ja) * 2007-12-21 2009-07-09 Showa Denko Kk ダイレス加工方法
CN103386451A (zh) * 2012-05-09 2013-11-13 雷帮荣 一种大直径活塞塞头、台阶轴或油缸成型工艺及其加工设备
CN103386451B (zh) * 2012-05-09 2015-07-08 雷帮荣 一种大直径活塞塞头、台阶轴或油缸成型工艺及其加工设备
CN110899591A (zh) * 2019-12-26 2020-03-24 徐州达一重锻科技有限公司 一种全加热钢管加厚成型液压机
CN110899591B (zh) * 2019-12-26 2021-01-01 徐州达一重锻科技有限公司 一种全加热钢管加厚成型液压机

Also Published As

Publication number Publication date
JPH0212657B2 (en]) 1990-03-23

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