GB647797A - Process for heat treating ferrous metals and products obtained therefrom - Google Patents

Process for heat treating ferrous metals and products obtained therefrom

Info

Publication number
GB647797A
GB647797A GB34269/47A GB3426947A GB647797A GB 647797 A GB647797 A GB 647797A GB 34269/47 A GB34269/47 A GB 34269/47A GB 3426947 A GB3426947 A GB 3426947A GB 647797 A GB647797 A GB 647797A
Authority
GB
United Kingdom
Prior art keywords
metal
point
deformation
temperature
products obtained
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
GB34269/47A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB647797A publication Critical patent/GB647797A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment

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)
  • Heat Treatment Of Steel (AREA)

Abstract

647,797. Working at specified temperatures. LEVITSKY, L. Dec. 24, 1947, No. 34269. Convention date, Sept. 37, 1946. Drawings to Specification. [Class 83 (iv)] In a process of hot working, the metal is cooled intensively so as to pass as quickly as possible the A1. point of the iron-carbon diagram, and the deformation is proceeded with immediately thereafter and continued until a temperature higher than the recrystallization point of the metal is reached. The metal is first heated to a relatively high temperature and deformed in the normal way to obtain a blank which is larger than the desired finished dimensions, and then reheated to a temperature above the A3 point of the iron-carbon diagram and preferably below the temperature at which the initial deformation was commenced. The deformation preferably does not exceed 40 per cent.
GB34269/47A 1946-09-27 1947-12-24 Process for heat treating ferrous metals and products obtained therefrom Expired GB647797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR647797X 1946-09-27

Publications (1)

Publication Number Publication Date
GB647797A true GB647797A (en) 1950-12-20

Family

ID=9002293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34269/47A Expired GB647797A (en) 1946-09-27 1947-12-24 Process for heat treating ferrous metals and products obtained therefrom

Country Status (1)

Country Link
GB (1) GB647797A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778756A (en) * 1953-06-22 1957-01-22 Bredzs Nikolajs Process for hardening steel
US3330705A (en) * 1966-11-17 1967-07-11 Inland Steel Co Method to improve impact properties of steels
US3453152A (en) * 1963-11-12 1969-07-01 Republic Steel Corp High-strength alloy steel compositions and process of producing high strength steel including hot-cold working

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778756A (en) * 1953-06-22 1957-01-22 Bredzs Nikolajs Process for hardening steel
US3453152A (en) * 1963-11-12 1969-07-01 Republic Steel Corp High-strength alloy steel compositions and process of producing high strength steel including hot-cold working
US3330705A (en) * 1966-11-17 1967-07-11 Inland Steel Co Method to improve impact properties of steels

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