JPS57164926A - Electrically heating method for bent pipe - Google Patents

Electrically heating method for bent pipe

Info

Publication number
JPS57164926A
JPS57164926A JP4918881A JP4918881A JPS57164926A JP S57164926 A JPS57164926 A JP S57164926A JP 4918881 A JP4918881 A JP 4918881A JP 4918881 A JP4918881 A JP 4918881A JP S57164926 A JPS57164926 A JP S57164926A
Authority
JP
Japan
Prior art keywords
fluids
pipe
overheating
sprayed
liquid mixed
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
JP4918881A
Other languages
Japanese (ja)
Other versions
JPH0138854B2 (en
Inventor
Senzo Yamamoto
Masato Yamao
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.)
NHK Spring Co Ltd
Original Assignee
NHK Spring 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 NHK Spring Co Ltd filed Critical NHK Spring Co Ltd
Priority to JP4918881A priority Critical patent/JPS57164926A/en
Publication of JPS57164926A publication Critical patent/JPS57164926A/en
Publication of JPH0138854B2 publication Critical patent/JPH0138854B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE:To prevent the formation of coarse grains of crystals and the generation of brittle defects or the like in accordance with partial overheating by cooling the inner side of the curved part of a bent pipe by spraying gas-liquid mixed fluids thereby heating all parts of the bent part roughly uniformly. CONSTITUTION:In the stage of conducting electrically between electrodes 4 and 4 mounted to linear parts 2, 2 from an electric power source part 5 and bending a pipe 1 under heating, gas-liquid mixed fluids 8 consisting of air and water are sprayed like mists to the inner side 6 of a curved part 3. The fluids are sprayed to the pattern of a circular or elliptical shape along the longitudinal direction of the pipe 1. The inner side 6 of the part 3 having a short electric conduction distance and a tendency toward increasing of wall thickness and overheating is cooled by the spraying of the fluids 8, whereby the temp. differences between said side and the outer side 9 are virtually eliminated and the partial overheating is prevented.
JP4918881A 1981-04-01 1981-04-01 Electrically heating method for bent pipe Granted JPS57164926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4918881A JPS57164926A (en) 1981-04-01 1981-04-01 Electrically heating method for bent pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4918881A JPS57164926A (en) 1981-04-01 1981-04-01 Electrically heating method for bent pipe

Publications (2)

Publication Number Publication Date
JPS57164926A true JPS57164926A (en) 1982-10-09
JPH0138854B2 JPH0138854B2 (en) 1989-08-16

Family

ID=12824044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4918881A Granted JPS57164926A (en) 1981-04-01 1981-04-01 Electrically heating method for bent pipe

Country Status (1)

Country Link
JP (1) JPS57164926A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011189892A (en) * 2010-03-16 2011-09-29 Chuo Spring Co Ltd Method of manufacturing stabilizer for automobile
US20130118649A1 (en) * 2010-03-23 2013-05-16 Chuo Hatsujo Kabushiki Kaisha Method for manufacturing spring
CN107267732A (en) * 2017-07-31 2017-10-20 浙江众立不锈钢管股份有限公司 A kind of solid dissolving method and its device of stainless steel elbow pipe fitting
CN109055693A (en) * 2018-07-12 2018-12-21 广州华德汽车弹簧有限公司 A kind of hollow stabilizing rod heating blowning installation and hollow stabilizing rod heated constant temperature method
EP3742865A1 (en) * 2019-05-23 2020-11-25 ITG Induktionsanlagen GmbH Method for conductive heating of curved metallic workpieces, installation for carrying out the method, and field management element for carrying out the method or as part of the system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011189892A (en) * 2010-03-16 2011-09-29 Chuo Spring Co Ltd Method of manufacturing stabilizer for automobile
CN102802973A (en) * 2010-03-16 2012-11-28 中央发条株式会社 Method for producing vehicle stabilizer
EP2548751A1 (en) * 2010-03-16 2013-01-23 Chuo Hatsujo Kabushiki Kaisha Method for producing vehicle stabilizer
EP2548751A4 (en) * 2010-03-16 2013-12-25 Chuo Hatsujo Kk Method for producing vehicle stabilizer
CN102802973B (en) * 2010-03-16 2016-01-20 中央发条株式会社 The manufacture method of automotive stabilizer bar
US20130118649A1 (en) * 2010-03-23 2013-05-16 Chuo Hatsujo Kabushiki Kaisha Method for manufacturing spring
CN107267732A (en) * 2017-07-31 2017-10-20 浙江众立不锈钢管股份有限公司 A kind of solid dissolving method and its device of stainless steel elbow pipe fitting
CN109055693A (en) * 2018-07-12 2018-12-21 广州华德汽车弹簧有限公司 A kind of hollow stabilizing rod heating blowning installation and hollow stabilizing rod heated constant temperature method
EP3742865A1 (en) * 2019-05-23 2020-11-25 ITG Induktionsanlagen GmbH Method for conductive heating of curved metallic workpieces, installation for carrying out the method, and field management element for carrying out the method or as part of the system

Also Published As

Publication number Publication date
JPH0138854B2 (en) 1989-08-16

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