GB1151974A - Method of Heat Treating Edges of Steel Strip - Google Patents

Method of Heat Treating Edges of Steel Strip

Info

Publication number
GB1151974A
GB1151974A GB55115/67A GB5511567A GB1151974A GB 1151974 A GB1151974 A GB 1151974A GB 55115/67 A GB55115/67 A GB 55115/67A GB 5511567 A GB5511567 A GB 5511567A GB 1151974 A GB1151974 A GB 1151974A
Authority
GB
United Kingdom
Prior art keywords
edges
steel
heat
slit
steel strip
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
GB55115/67A
Inventor
William Emerson Coleman
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.)
United States Steel Corp
Original Assignee
United States Steel Corp
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 United States Steel Corp filed Critical United States Steel Corp
Publication of GB1151974A publication Critical patent/GB1151974A/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/40—Direct resistance heating

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 Sheet Steel (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

1,151,974. Heat-treating steel strip edges. UNITED STATES STEEL CORP. Dec.4, 1967 [Dec.2, 1966], No.55115/67. Heading C7N. The edges of strip 24 obtained by slitting sheet steel 20 are heat-treated by applying current leads from a power supply 28 of frequency at least 10,000 c/s to points 30 adjacent opposing slit edges (32) emerging from the slitter 22 so that the heat-treating temperature is limited to the edge zones of the slit by passage of current along the slit edges and across the unslit vertex. For steel 0À001 - 0À007 inch thick, the current frequency is preferably selected e.g. 50, 000- 1, 000, 000 c/s to produce annealing temperatures of 950 - 1350‹F. to reduce the hardness of the edges to less than 60 Rockwell 30-T, suitable for forming the flanges of container bodies.
GB55115/67A 1966-12-02 1967-12-04 Method of Heat Treating Edges of Steel Strip Expired GB1151974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59864466A 1966-12-02 1966-12-02

Publications (1)

Publication Number Publication Date
GB1151974A true GB1151974A (en) 1969-05-14

Family

ID=24396380

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55115/67A Expired GB1151974A (en) 1966-12-02 1967-12-04 Method of Heat Treating Edges of Steel Strip

Country Status (5)

Country Link
US (1) US3522116A (en)
BE (1) BE707439A (en)
DE (1) DE1583423A1 (en)
GB (1) GB1151974A (en)
NL (1) NL6716409A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405386A (en) * 1982-04-05 1983-09-20 Olin Corporation Process and apparatus for improving cold rollability and/or strip annealability of metals and metal alloys
US5238510A (en) * 1990-08-10 1993-08-24 Bethlehem Steel Corporation Metal sheet and method for producing the same
US5975569A (en) * 1997-11-03 1999-11-02 Illinois Tool Works Heat treated combustion chamber housing and process for making same
CZ309053B6 (en) * 2020-10-30 2021-12-29 Západočeská Univerzita V Plzni Sheet metal semi-finished product, for deep-drawing and resistance heating by electric current

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1589235A (en) * 1921-06-04 1926-06-15 Schroder Edmund Device for the local annealing of pressed parts
US2066668A (en) * 1931-06-19 1937-01-05 Wisconsin Alumni Res Found Method of heating electrically conducting bodies for industrial operations
US2144378A (en) * 1937-09-11 1939-01-17 Ajax Electrothermic Corp Induction heater

Also Published As

Publication number Publication date
DE1583423A1 (en) 1970-08-13
US3522116A (en) 1970-07-28
NL6716409A (en) 1968-06-04
BE707439A (en) 1968-06-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]