ZA775588B - A process for reducing stresses in seamless tubes which have undergone a straightening operation - Google Patents

A process for reducing stresses in seamless tubes which have undergone a straightening operation

Info

Publication number
ZA775588B
ZA775588B ZA00775588A ZA775588A ZA775588B ZA 775588 B ZA775588 B ZA 775588B ZA 00775588 A ZA00775588 A ZA 00775588A ZA 775588 A ZA775588 A ZA 775588A ZA 775588 B ZA775588 B ZA 775588B
Authority
ZA
South Africa
Prior art keywords
undergone
seamless tubes
straightening operation
reducing stresses
stresses
Prior art date
Application number
ZA00775588A
Other languages
English (en)
Inventor
A Vignes
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 ZA775588B publication Critical patent/ZA775588B/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (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)
ZA00775588A 1976-10-01 1977-09-19 A process for reducing stresses in seamless tubes which have undergone a straightening operation ZA775588B (en)

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
ZA775588B true ZA775588B (en) 1978-07-26

Family

ID=9178310

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00775588A ZA775588B (en) 1976-10-01 1977-09-19 A process for reducing stresses in seamless tubes which have undergone a straightening operation

Country Status (8)

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

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

Also Published As

Publication number Publication date
GB1556316A (en) 1979-11-21
DE2744120A1 (de) 1978-04-06
US4174233A (en) 1979-11-13
FR2366368B1 (enExample) 1980-09-12
ES462795A1 (es) 1978-07-01
BE859276A (fr) 1978-03-30
FR2366368A1 (fr) 1978-04-28
SE7710893L (sv) 1978-04-02

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