GB1214074A - A method of heating cold-rolled steel sheet and annealing furnace suitable for use in carrying out the method - Google Patents

A method of heating cold-rolled steel sheet and annealing furnace suitable for use in carrying out the method

Info

Publication number
GB1214074A
GB1214074A GB2925468A GB2925468A GB1214074A GB 1214074 A GB1214074 A GB 1214074A GB 2925468 A GB2925468 A GB 2925468A GB 2925468 A GB2925468 A GB 2925468A GB 1214074 A GB1214074 A GB 1214074A
Authority
GB
United Kingdom
Prior art keywords
coils
tubes
gas
steel sheet
cover
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
GB2925468A
Inventor
Sukeharu Endo
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to GB2925468A priority Critical patent/GB1214074A/en
Publication of GB1214074A publication Critical patent/GB1214074A/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
    • 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
    • C21D9/54—Furnaces for treating strips or wire

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 Strip Materials And Filament Materials (AREA)

Abstract

1,214,074. Bell type annealing furnaces. ISHIKAWAJIMA-HARIMA JUKOGYO K.K. 19 June, 1968, No. 29254/68. Heading F4B. [Also in Division C6-C7] An annealing furnace for coils of steel sheet comprises a plenum chamber 31 and cover 21 sealed thereto by seals 29. The chamber contains radiant tubes 23 heated internally by gas combustion, above which the coils 30 to be annealed are distributed in a single layer (Fig. 5). Within the cover and above the coils are mounted a further set of radiant tubes 22. Protective gas is circulated over the tubes and coils by fan 27 which extracts the gas from the chamber via duct 40 and discharges it into the cover via duct 41 under control of dampers 24. For cooling the coils after annealing, combustion in the tubes is stopped and a heat exchanger 25 is moved from a position outside the furnace to the position shown in Fig. 2, in the path of the circulating gas.
GB2925468A 1968-06-19 1968-06-19 A method of heating cold-rolled steel sheet and annealing furnace suitable for use in carrying out the method Expired GB1214074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2925468A GB1214074A (en) 1968-06-19 1968-06-19 A method of heating cold-rolled steel sheet and annealing furnace suitable for use in carrying out the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2925468A GB1214074A (en) 1968-06-19 1968-06-19 A method of heating cold-rolled steel sheet and annealing furnace suitable for use in carrying out the method

Publications (1)

Publication Number Publication Date
GB1214074A true GB1214074A (en) 1970-12-02

Family

ID=10288597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2925468A Expired GB1214074A (en) 1968-06-19 1968-06-19 A method of heating cold-rolled steel sheet and annealing furnace suitable for use in carrying out the method

Country Status (1)

Country Link
GB (1) GB1214074A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees