GB762127A - Improvements in or relating to the production of coiled steel strip - Google Patents

Improvements in or relating to the production of coiled steel strip

Info

Publication number
GB762127A
GB762127A GB5735/54A GB573554A GB762127A GB 762127 A GB762127 A GB 762127A GB 5735/54 A GB5735/54 A GB 5735/54A GB 573554 A GB573554 A GB 573554A GB 762127 A GB762127 A GB 762127A
Authority
GB
United Kingdom
Prior art keywords
quenching
water
stock
tube
coiled
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
GB5735/54A
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.)
GUSSSTAHLWERK BOCHUMER VER AG
Original Assignee
GUSSSTAHLWERK BOCHUMER VER 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 GUSSSTAHLWERK BOCHUMER VER AG filed Critical GUSSSTAHLWERK BOCHUMER VER AG
Publication of GB762127A publication Critical patent/GB762127A/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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling

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)
  • Manufacturing & Machinery (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

In a process for the production of coiled steel strip the rolled stock is quenched, directly after issuing from the last roll pass and before being coiled, to an external temperature lying between Ar3 and the lowest external temperature at which coiling of the stock is possible, and is then coiled while being further cooled. The quenching may be performed in a quenching tube, through which water flows continuously, in which case the degree of quenching may be adjusted by altering the inclination of the tube when it contains a fixed amount of water, by using a tube having a fixed inclination which is provided with a number of discharge outlets for the water, the distance in the water through which the stock passes being determined by the position of the operative discharge outlet, or by varying the rolling speed: the latter method may be used alone or in combination with one of the former methods. Alternatively, the quenching may be effected by running the stock over metal surfaces which are kept cool, e.g. by internal or external cooling with water: this may be used in combination with the quenching tube. After quenching, the stock is passed to a reel subjected to cooling, e.g. by being submerged in, or sprayed with, water, or dry cooled by a blast of cold air, and may then be immediately subjected to an equalizing heat treatment at a temperature of 250 DEG -550 DEG C. for at least 20 minutes.
GB5735/54A 1953-02-28 1954-02-26 Improvements in or relating to the production of coiled steel strip Expired GB762127A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE762127X 1953-02-28

Publications (1)

Publication Number Publication Date
GB762127A true GB762127A (en) 1956-11-21

Family

ID=6667043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5735/54A Expired GB762127A (en) 1953-02-28 1954-02-26 Improvements in or relating to the production of coiled steel strip

Country Status (2)

Country Link
FR (1) FR1094131A (en)
GB (1) GB762127A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513036A (en) * 1967-05-02 1970-05-19 Inland Steel Co Process for producing coiled,hotrolled,pickled steel strip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3513036A (en) * 1967-05-02 1970-05-19 Inland Steel Co Process for producing coiled,hotrolled,pickled steel strip

Also Published As

Publication number Publication date
FR1094131A (en) 1955-05-13

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