GB308346A - - Google Patents

Info

Publication number
GB308346A
GB308346A GB6205/29A GB620529A GB308346A GB 308346 A GB308346 A GB 308346A GB 6205/29 A GB6205/29 A GB 6205/29A GB 620529 A GB620529 A GB 620529A GB 308346 A GB308346 A GB 308346A
Authority
GB
United Kingdom
Prior art keywords
tubes
rods
mannesmannr
hren
werke
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
GB6205/29A
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.)
Vodafone GmbH
Original Assignee
Mannesmannroehren Werke AG
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 Mannesmannroehren Werke AG filed Critical Mannesmannroehren Werke AG
Publication of GB308346A publication Critical patent/GB308346A/en
Expired 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
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/78—Combined heat-treatments not provided for above

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

308,346. Mannesmannr÷hren-Werke March 22, 1928, [Convention date]. Annealing and tempering.-In a process for heat-treating boring or drilling tubes or rods the tubes &c. are quenched in oil or water and annealed by heating above the Ac3 point, e.g. 810‹ C., and cooling or quenching, the tubes or rods to be treated coming direct from the rolling mills or being subsequently raised to the rolling temperature. The tube &c. may be heated again to 570‹ C. and cooled as before.
GB6205/29A 1928-03-22 1929-02-25 Expired GB308346A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE308346T 1928-03-22

Publications (1)

Publication Number Publication Date
GB308346A true GB308346A (en) 1930-08-25

Family

ID=31894504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6205/29A Expired GB308346A (en) 1928-03-22 1929-02-25

Country Status (1)

Country Link
GB (1) GB308346A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492408A1 (en) * 1980-10-16 1982-04-23 Arbed METHOD FOR MANUFACTURING STEEL LAMINATES HAVING GOOD WELDABILITY

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492408A1 (en) * 1980-10-16 1982-04-23 Arbed METHOD FOR MANUFACTURING STEEL LAMINATES HAVING GOOD WELDABILITY

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