JPS54135659A - Straightening method - Google Patents

Straightening method

Info

Publication number
JPS54135659A
JPS54135659A JP4213578A JP4213578A JPS54135659A JP S54135659 A JPS54135659 A JP S54135659A JP 4213578 A JP4213578 A JP 4213578A JP 4213578 A JP4213578 A JP 4213578A JP S54135659 A JPS54135659 A JP S54135659A
Authority
JP
Japan
Prior art keywords
straightening
straightened
load
angle
proportional factor
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
JP4213578A
Other languages
Japanese (ja)
Other versions
JPS5642364B2 (en
Inventor
Shigeyasu Ueno
Masaru Kobayashi
Masanobu Ueda
Hiroshi Makihira
Kenji Tabei
Shinobu Watanabe
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 JP4213578A priority Critical patent/JPS54135659A/en
Publication of JPS54135659A publication Critical patent/JPS54135659A/en
Publication of JPS5642364B2 publication Critical patent/JPS5642364B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

PURPOSE: To make possible the straightening at comparatively good accuracy, by detecting the amount of straightening for the material to be straightened before applying the straightening load, at straightening the material to be straightened, and by measuring the proportional factor of the material to be straightened, after applying a specified load.
CONSTITUTION: The straightening angle of the material to be straightened is 6 degrees, for instance; after releasing the load, a load equivalent to the point C for giving a deformation to the extent unexceedable above started straightening angle 6 degrees is applied to the material to be straightened; and then, the load is temporarily released and again is applied. By this procedure, (variation of deformation/ variation of load = proportional factor of the material to be straightened) can be easily detected for the span C-C' or C'-C. Moreover, by increasing the torque to be applied to the material to be straightened, and by releasing this twisting torque at the point D where (twisting angle - proportional factor × twisting torque) reaches above stated straightening angle, the straightening at high accuracy becomes possible.
COPYRIGHT: (C)1979,JPO&Japio
JP4213578A 1978-04-12 1978-04-12 Straightening method Granted JPS54135659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4213578A JPS54135659A (en) 1978-04-12 1978-04-12 Straightening method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4213578A JPS54135659A (en) 1978-04-12 1978-04-12 Straightening method

Publications (2)

Publication Number Publication Date
JPS54135659A true JPS54135659A (en) 1979-10-22
JPS5642364B2 JPS5642364B2 (en) 1981-10-05

Family

ID=12627489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4213578A Granted JPS54135659A (en) 1978-04-12 1978-04-12 Straightening method

Country Status (1)

Country Link
JP (1) JPS54135659A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017148851A (en) * 2016-02-26 2017-08-31 Ｊｆｅスチール株式会社 Steel plate shape correcting method and steel plate manufacturing method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6380218B2 (en) * 2015-04-16 2018-08-29 トヨタ自動車株式会社 Shape correction device and shape correction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017148851A (en) * 2016-02-26 2017-08-31 Ｊｆｅスチール株式会社 Steel plate shape correcting method and steel plate manufacturing method

Also Published As

Publication number Publication date
JPS5642364B2 (en) 1981-10-05

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