SE8305449D0 - PROCEDURE AND DEVICE FOR HEAT TREATMENT OF RODS - Google Patents

PROCEDURE AND DEVICE FOR HEAT TREATMENT OF RODS

Info

Publication number
SE8305449D0
SE8305449D0 SE8305449A SE8305449A SE8305449D0 SE 8305449 D0 SE8305449 D0 SE 8305449D0 SE 8305449 A SE8305449 A SE 8305449A SE 8305449 A SE8305449 A SE 8305449A SE 8305449 D0 SE8305449 D0 SE 8305449D0
Authority
SE
Sweden
Prior art keywords
pipes
heat treatment
chambers
rods
procedure
Prior art date
Application number
SE8305449A
Other languages
Swedish (sv)
Other versions
SE8305449L (en
Inventor
K Keutmann
W Sabatschus
H Bartkowski
Original Assignee
Mannesmann 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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of SE8305449D0 publication Critical patent/SE8305449D0/en
Publication of SE8305449L publication Critical patent/SE8305449L/en

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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum

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)
  • Furnace Details (AREA)

Abstract

In the heat treatment of pipes they are continuously passed through an annealing chamber (2) and then through cooling chambers (3 and 4) and a faster cooling of the continuously heated pipes is made possible by evacuating the annealing chamber and the cooling chambers of gas, prior to the introduction of the pipes, preferably through the application of an under pressure of at least 10<-1> mbar at 80 DEG C. Multiple stage vacuum locks (9) ensure the maintenance of the vacuum. Alternatively or additionally, during the passing of the pipes through the chambers an atmosphere poor in oxygen may be maintained. A protective gas may also be applied. <IMAGE>
SE8305449A 1982-10-05 1983-10-04 PROCEDURE AND DEVICE FOR HEAT TREATMENT OF RODS SE8305449L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3237193A DE3237193C2 (en) 1982-10-05 1982-10-05 Method and device for the heat treatment of pipes

Publications (2)

Publication Number Publication Date
SE8305449D0 true SE8305449D0 (en) 1983-10-04
SE8305449L SE8305449L (en) 1984-04-06

Family

ID=6175187

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8305449A SE8305449L (en) 1982-10-05 1983-10-04 PROCEDURE AND DEVICE FOR HEAT TREATMENT OF RODS

Country Status (7)

Country Link
JP (1) JPS5970727A (en)
DE (1) DE3237193C2 (en)
FR (1) FR2533942B1 (en)
GB (1) GB2128207B (en)
IT (1) IT1169544B (en)
NL (1) NL8302697A (en)
SE (1) SE8305449L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309883C2 (en) * 1983-03-17 1986-11-13 Mannesmann AG, 4000 Düsseldorf Method and device for heat treatment of tubes
EP0425461A1 (en) * 1989-10-27 1991-05-02 Sandvik Special Metals Corp. Continuous solution heat treatment of precipitation hardenable alloys
DE102013114578A1 (en) 2013-12-19 2015-06-25 Sandvik Materials Technology Deutschland Gmbh Annealing furnace and method for annealing a steel strand
KR101983527B1 (en) * 2016-03-31 2019-05-28 닛폰세이테츠 가부시키가이샤 Heat treatment apparatus, heat treatment method of steel material and hot bending method of steel material
IT201600081769A1 (en) * 2016-08-03 2018-02-03 C S M Spa COOLING STATION FOR ELECTRIC RESISTANCE PRODUCTION PLANTS

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR806287A (en) * 1935-10-18 1936-12-11 Process of annealing metal parts, in particular long and rigid metal bodies, such as tubes, pipes or bars
BE635787A (en) * 1962-08-09
GB1186091A (en) * 1967-03-21 1970-04-02 Air Reduction Electron Beam Heating Apparatus for Annealing Strip Material.
US3593972A (en) * 1969-02-25 1971-07-20 Crucible Steel Corp Annealing apparatus
DE1929231B2 (en) * 1969-06-10 1973-08-23 Farbwerke Hoechst AG, vormals Mei ster Lucius & Bruning, 6000 Frankfurt PROCESS FOR MANUFACTURING REPORTSLESS PATTERNED PRINTED ARTICLES ON TEXTILE FABRICS FROM NATIVE OR REGENERATED CELLULOSE FIBERS
GB1292403A (en) * 1969-11-15 1972-10-11 Kobe Steel Ltd Continous treatment method and apparatus for metals
US3708354A (en) * 1971-06-09 1973-01-02 Anaconda American Brass Co Method and apparatus for measuring and controlling the continuous annealing of a long length of metal tubing
GB1428993A (en) * 1973-07-03 1976-03-24 Electricity Council Continuous heat treatment of wire or rod
ATA874874A (en) * 1974-10-31 1978-02-15 Ebner Ind Ofenbau ANNEALING SYSTEM FOR BARS AND TUBES IN CHROME-NICKEL STEEL OR CHROME STEEL

Also Published As

Publication number Publication date
NL8302697A (en) 1984-05-01
GB8326629D0 (en) 1983-11-09
IT8322552A0 (en) 1983-08-12
JPS5970727A (en) 1984-04-21
FR2533942A1 (en) 1984-04-06
DE3237193C2 (en) 1985-11-28
GB2128207B (en) 1986-04-09
IT1169544B (en) 1987-06-03
GB2128207A (en) 1984-04-26
DE3237193A1 (en) 1984-04-05
SE8305449L (en) 1984-04-06
FR2533942B1 (en) 1987-10-23

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Legal Events

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NAV Patent application has lapsed

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Effective date: 19881119