FR2366368A1 - Procede de detensionnement de tubes sans soudure - Google Patents

Procede de detensionnement de tubes sans soudure

Info

Publication number
FR2366368A1
FR2366368A1 FR7629655A FR7629655A FR2366368A1 FR 2366368 A1 FR2366368 A1 FR 2366368A1 FR 7629655 A FR7629655 A FR 7629655A FR 7629655 A FR7629655 A FR 7629655A FR 2366368 A1 FR2366368 A1 FR 2366368A1
Authority
FR
France
Prior art keywords
tubes
relaxation process
stress relieving
weldless tube
tube relaxation
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
FR7629655A
Other languages
English (en)
Other versions
FR2366368B1 (fr
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.)
Areva NP SAS
Original Assignee
Framatome SA
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 Framatome SA filed Critical Framatome SA
Priority to FR7629655A priority Critical patent/FR2366368A1/fr
Priority to GB38408/77A priority patent/GB1556316A/en
Priority to ZA00775588A priority patent/ZA775588B/xx
Priority to US05/835,853 priority patent/US4174233A/en
Priority to SE7710893A priority patent/SE7710893L/xx
Priority to BE181374A priority patent/BE859276A/fr
Priority to ES462795A priority patent/ES462795A1/es
Priority to DE19772744120 priority patent/DE2744120A1/de
Publication of FR2366368A1 publication Critical patent/FR2366368A1/fr
Application granted granted Critical
Publication of FR2366368B1 publication Critical patent/FR2366368B1/fr
Granted 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
    • B21C37/30—Finishing tubes, e.g. sizing, burnishing
    • 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

L'invention concerne un procédé de détensionnement de tubes sans soudure ayant subi une opération de dressage. On soumet, pendant une durée au moins égale à 3 minutes, les tubes maintenus à une température voisine de la température ambiante, à une pression interne comprise entre 0,8 Pc et Pc, Pc étant la pression critique au-delà de laquelle le tube subit une déformation plastique sur toute son épaisseur. L'invention s'applique en particulier au détensionnement de tubes cintrés de générateurs de vapeur de réacteurs nucléaires.
FR7629655A 1976-10-01 1976-10-01 Procede de detensionnement de tubes sans soudure Granted FR2366368A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7629655A FR2366368A1 (fr) 1976-10-01 1976-10-01 Procede de detensionnement de tubes sans soudure
GB38408/77A GB1556316A (en) 1976-10-01 1977-09-14 Process for reducing stresses in seamless tubes
ZA00775588A ZA775588B (en) 1976-10-01 1977-09-19 A process for reducing stresses in seamless tubes which have undergone a straightening operation
US05/835,853 US4174233A (en) 1976-10-01 1977-09-22 Expansion process for reducing the stresses in a seamless metal tube
SE7710893A SE7710893L (sv) 1976-10-01 1977-09-29 Forfarande for avspenning av svetsfria ror
BE181374A BE859276A (fr) 1976-10-01 1977-09-30 Procede de detensionnement de tubes sans soudure
ES462795A ES462795A1 (es) 1976-10-01 1977-09-30 Procedimiento de alivio de tensiones de tubos metalicos sin soldadura que han sufrido una operacion de enderezamiento.
DE19772744120 DE2744120A1 (de) 1976-10-01 1977-09-30 Verfahren zum entspannen nahtloser rohre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7629655A FR2366368A1 (fr) 1976-10-01 1976-10-01 Procede de detensionnement de tubes sans soudure

Publications (2)

Publication Number Publication Date
FR2366368A1 true FR2366368A1 (fr) 1978-04-28
FR2366368B1 FR2366368B1 (fr) 1980-09-12

Family

ID=9178310

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7629655A Granted FR2366368A1 (fr) 1976-10-01 1976-10-01 Procede de detensionnement de tubes sans soudure

Country Status (8)

Country Link
US (1) US4174233A (fr)
BE (1) BE859276A (fr)
DE (1) DE2744120A1 (fr)
ES (1) ES462795A1 (fr)
FR (1) FR2366368A1 (fr)
GB (1) GB1556316A (fr)
SE (1) SE7710893L (fr)
ZA (1) ZA775588B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19600877A1 (de) * 1996-01-12 1997-07-17 Budenheim Rud A Oetker Chemie Flammschutzmittel und deren Verwendung
CN113319208A (zh) * 2021-04-25 2021-08-31 东莞材料基因高等理工研究院 一种消除冷拔管残余应力的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285489B (de) * 1957-08-16 1968-12-19 Avesta Jernverks Ab Verfahren zur Herstellung von aus zusammengeschweissten Teilen bestehenden Druckgefaessen aus Stahl
US3343249A (en) * 1966-07-15 1967-09-26 Breit Eng Inc Method of making stress-relieved metal tanks
US3535484A (en) * 1967-05-26 1970-10-20 American Cast Iron Pipe Co Method of improving physical properties of electric resistance welded steel pipe
US3817796A (en) * 1970-06-30 1974-06-18 Martin Marietta Corp Method of increasing the fatigue resistance and creep resistance of metals and metal body formed thereby
JPS5431445B2 (fr) * 1974-02-04 1979-10-06

Also Published As

Publication number Publication date
ES462795A1 (es) 1978-07-01
SE7710893L (sv) 1978-04-02
ZA775588B (en) 1978-07-26
DE2744120A1 (de) 1978-04-06
FR2366368B1 (fr) 1980-09-12
BE859276A (fr) 1978-03-30
US4174233A (en) 1979-11-13
GB1556316A (en) 1979-11-21

Similar Documents

Publication Publication Date Title
FR2366368A1 (fr) Procede de detensionnement de tubes sans soudure
SE7710252L (sv) Forfarande och anordning for framstellning av trad-, stang- och rormaterial etc
Majumdar et al. Unified and mechanistic approach to creep-fatigue damage
US5408855A (en) Method for continuously measuring mechanical properties of a continuously produced sheet, in particular a sheet of steel
DE2964230D1 (en) Method of making a piezoelectric transducer
Mayuzumi et al. Prediction of Creep Deformation/Rupture Properties for Zircaloy Under Constant Internal Pressure Condition
Matousek Stress and Damage in Thick-Walled Bending With Ovality
SU1177660A2 (ru) Способ определени температуры фиксации деформаций
SU841703A1 (ru) Устройство дл контрол и правкишАТуНОВ
KR970043078A (ko) 고로 연화융착대의 추정방법
SU133038A1 (ru) Способ определени сопротивлени деформации и устройство дл его осуществлени
SU815386A1 (ru) Способ изготовлени уплотн ющихдЕТАлЕй
SU627940A1 (ru) Способ резки трубопроводов
Rodriguez A New Test Procedure Combining Stress Relaxation and Temperature Cycling for Deformation Dynamics Studies
Dobrovolskii et al. Activation Energy of Intercrystalline Fracture During Creep of Steel
JPS6475221A (en) Bending processing method of thermoplastic resin of thin-diameter and long-sized material
KAUFMAN A-37 B fatigue sensor data analysis methodology program[Final Report, Aug. 1974- Oct. 1975]
SU991241A1 (ru) Устройство дл механических испытаний микрообразцов на сжатие к разрывной машине
JPH01166816A (ja) 熱間押出による異形管の製造法
JPS5840790A (ja) 熱電対入シ−ズヒ−タ端子の製造方法
Wu Microstructure Changes and Creep Behaviours of 12 Cr 1 MoV Steel Running Under Working Condition
JASKE et al. Low cycle fatigue and creep fatigue of Incoloy alloy 800(Low cycle fatigue behavior and creep rupture tests of solution-annealed Incoloy alloy 800)
SU143579A1 (ru) Способ исследовани пластической деформации металлов
GB1531120A (en) Testing nuclear fuel rods
Khan'zhin et al. Effect of Testing Technology on the Recognition of Defects by the Capillary Method

Legal Events

Date Code Title Description
ST Notification of lapse