JPS56133417A - Iron and steel materials - Google Patents

Iron and steel materials

Info

Publication number
JPS56133417A
JPS56133417A JP3732380A JP3732380A JPS56133417A JP S56133417 A JPS56133417 A JP S56133417A JP 3732380 A JP3732380 A JP 3732380A JP 3732380 A JP3732380 A JP 3732380A JP S56133417 A JPS56133417 A JP S56133417A
Authority
JP
Japan
Prior art keywords
iron
steel materials
recrystallization
temp
hardness
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.)
Pending
Application number
JP3732380A
Other languages
Japanese (ja)
Inventor
Masayoshi Usui
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.)
Usui Kokusai Sangyo Kaisha Ltd
Original Assignee
Usui Kokusai Sangyo Kaisha Ltd
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 Usui Kokusai Sangyo Kaisha Ltd filed Critical Usui Kokusai Sangyo Kaisha Ltd
Priority to JP3732380A priority Critical patent/JPS56133417A/en
Priority to GB8108860A priority patent/GB2072703A/en
Priority to CA000373498A priority patent/CA1178517A/en
Priority to DE19813111249 priority patent/DE3111249A1/en
Priority to FR8105852A priority patent/FR2482136A1/en
Priority to AU68668/81A priority patent/AU6866881A/en
Priority to BR8101746A priority patent/BR8101746A/en
Publication of JPS56133417A publication Critical patent/JPS56133417A/en
Pending 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
    • 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
    • C21D1/26—Methods of annealing
    • C21D1/30—Stress-relieving
    • 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
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

PURPOSE: To increase the fatigue strength of iron and steel materials to bending, vibration, etc. by subjecting the iron and steel materials after plastic working by drawing to low-temp. annealing treatment thereby forming these to the flat structure in which recrystallization is hardly observed and increasing their hardness.
CONSTITUTION: Iron and steel materials are subjected to cold plastic working such as drawing to make the iron and steel materials of a pipe- or bar-shape in the state in which uniform flat structure is maintained. Thence, it is subjected to the low- temp. annealing treatment by the temp. and time by which no recrystallization is observed, that is, such temp. and time that put them into the state just before the start of recrystallization, whereby they are formed into the flat structure in which recrystallization is hardly observed; moreover, the hardness thereof is increased to the hardness 55%W125% higher than that at the perfect annealing of these iron and steel materials. Thereby, the fatigue strength of the iron and steel materials after annealing is considerably increased.
COPYRIGHT: (C)1981,JPO&Japio
JP3732380A 1980-03-24 1980-03-24 Iron and steel materials Pending JPS56133417A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP3732380A JPS56133417A (en) 1980-03-24 1980-03-24 Iron and steel materials
GB8108860A GB2072703A (en) 1980-03-24 1981-03-20 Stress-relief annealing of ferrous metals
CA000373498A CA1178517A (en) 1980-03-24 1981-03-20 Ferrous materials
DE19813111249 DE3111249A1 (en) 1980-03-24 1981-03-21 Improved iron-type materials
FR8105852A FR2482136A1 (en) 1980-03-24 1981-03-24 IMPROVEMENTS TO FERROUS MATERIALS
AU68668/81A AU6866881A (en) 1980-03-24 1981-03-24 Heat treatment of ferrous materials
BR8101746A BR8101746A (en) 1980-03-24 1981-03-24 IMPROVEMENTS RELATING TO FERROUS MATERIALS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3732380A JPS56133417A (en) 1980-03-24 1980-03-24 Iron and steel materials

Publications (1)

Publication Number Publication Date
JPS56133417A true JPS56133417A (en) 1981-10-19

Family

ID=12494444

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3732380A Pending JPS56133417A (en) 1980-03-24 1980-03-24 Iron and steel materials

Country Status (7)

Country Link
JP (1) JPS56133417A (en)
AU (1) AU6866881A (en)
BR (1) BR8101746A (en)
CA (1) CA1178517A (en)
DE (1) DE3111249A1 (en)
FR (1) FR2482136A1 (en)
GB (1) GB2072703A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19854168C2 (en) * 1997-06-11 2000-05-25 Leico Werkzeugmaschb Gmbh & Co Method for producing a toothed gear part

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235243A (en) * 1939-03-27 1941-03-18 Republic Steel Corp Ferrous metal article and method of producing same
US2293938A (en) * 1939-06-14 1942-08-25 Nat Tube Co Tubular article
US3230118A (en) * 1961-08-15 1966-01-18 Screw & Bolt Corp Of America Method of developing high physical properties in ferrous material and product produced thereby
US4018634A (en) * 1975-12-22 1977-04-19 Grotnes Machine Works, Inc. Method of producing high strength steel pipe

Also Published As

Publication number Publication date
FR2482136A1 (en) 1981-11-13
GB2072703A (en) 1981-10-07
DE3111249A1 (en) 1982-03-04
BR8101746A (en) 1981-09-29
CA1178517A (en) 1984-11-27
AU6866881A (en) 1981-10-15

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