ES462795A1 - Procedimiento de alivio de tensiones de tubos metalicos sin soldadura que han sufrido una operacion de enderezamiento. - Google Patents

Procedimiento de alivio de tensiones de tubos metalicos sin soldadura que han sufrido una operacion de enderezamiento.

Info

Publication number
ES462795A1
ES462795A1 ES462795A ES462795A ES462795A1 ES 462795 A1 ES462795 A1 ES 462795A1 ES 462795 A ES462795 A ES 462795A ES 462795 A ES462795 A ES 462795A ES 462795 A1 ES462795 A1 ES 462795A1
Authority
ES
Spain
Prior art keywords
reducing
metal tube
stresses
tube
seamless metal
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.)
Expired
Application number
ES462795A
Other languages
English (en)
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
Publication of ES462795A1 publication Critical patent/ES462795A1/es
Expired 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

Abstract

Procedimiento de alivio de tensiones de tubos metálicos sin soldadura que han sufrido una operación de enderezamiento, caracterizado por el hecho de que se someten durante un período de tiempo por lo menos igual a 3 mn los tubos mantenidos a una temperatura próxima a la temperatura ambiente, a una presión interna comprendida entre 0,8 Pc y Pc, siendo Pc la presión crítica más allá de la cual el tubo sufre una deformación plástica en todo su grosor.
ES462795A 1976-10-01 1977-09-30 Procedimiento de alivio de tensiones de tubos metalicos sin soldadura que han sufrido una operacion de enderezamiento. Expired ES462795A1 (es)

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 (1)

Publication Number Publication Date
ES462795A1 true ES462795A1 (es) 1978-07-01

Family

ID=9178310

Family Applications (1)

Application Number Title Priority Date Filing Date
ES462795A Expired 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.

Country Status (8)

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

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 (es) * 1974-02-04 1979-10-06

Also Published As

Publication number Publication date
BE859276A (fr) 1978-03-30
SE7710893L (sv) 1978-04-02
FR2366368B1 (es) 1980-09-12
ZA775588B (en) 1978-07-26
FR2366368A1 (fr) 1978-04-28
US4174233A (en) 1979-11-13
DE2744120A1 (de) 1978-04-06
GB1556316A (en) 1979-11-21

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