GB980353A - Improvements in or relating to heat treating apparatus - Google Patents

Improvements in or relating to heat treating apparatus

Info

Publication number
GB980353A
GB980353A GB2238162A GB2238162A GB980353A GB 980353 A GB980353 A GB 980353A GB 2238162 A GB2238162 A GB 2238162A GB 2238162 A GB2238162 A GB 2238162A GB 980353 A GB980353 A GB 980353A
Authority
GB
United Kingdom
Prior art keywords
strip
passage
heat
liquid
transfer medium
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
GB2238162A
Inventor
Robert Clifford Cubbon
Arthur Raymond Cottrell
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.)
Davy Loewy Ltd
Original Assignee
Davy Loewy 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 Davy Loewy Ltd filed Critical Davy Loewy Ltd
Priority to GB2238162A priority Critical patent/GB980353A/en
Publication of GB980353A publication Critical patent/GB980353A/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
    • C21D9/56—Continuous furnaces for strip or wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/58—Article switches or diverters
    • B65H29/62—Article switches or diverters diverting faulty articles from the main streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

In a process and apparatus for the continuous heat-treatment of metal strip the latter is first heated by passage through a liquid heat transfer medium, is then further heated by radiation in a non-oxidizing atmosphere, and is then quenched by passage through a liquid heat transfer medium at a lower temperature than the first medium. The same liquid medium may be used both to heat and to quench the strip and is in that case circulated in counter-flow to the strip. While the strip is being subjected to radiation it may be additionally heated by the passage of electric current. As illustrated, strip 11 follows a path defined by rolls 12, 15, 19, 21 and 26, in the course of which it passes first through limbs 14 and 16 of a U-shaped channel containing a liquid heat-transfer medium, is then further heated by banks of radiant heaters 18, and is then quenched by passage through a second U-shaped channel 20, 22. Additional heat may be supplied by the input of electric current through line 30 and roll 19, rolls 15 and 21 being earthed. The liquid, which may be lead-bismuth alloy, is circulated by pump 42 through limbs 22, 20, 16 and 14 in counterflow to the strip, returning through heat exchanger 46; it is maintained at appropriate treatment temperatures by heaters 49. <PICT:0980353/C6-C7/1>
GB2238162A 1962-06-08 1962-06-08 Improvements in or relating to heat treating apparatus Expired GB980353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2238162A GB980353A (en) 1962-06-08 1962-06-08 Improvements in or relating to heat treating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2238162A GB980353A (en) 1962-06-08 1962-06-08 Improvements in or relating to heat treating apparatus

Publications (1)

Publication Number Publication Date
GB980353A true GB980353A (en) 1965-01-13

Family

ID=10178469

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2238162A Expired GB980353A (en) 1962-06-08 1962-06-08 Improvements in or relating to heat treating apparatus

Country Status (1)

Country Link
GB (1) GB980353A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129836A (en) * 1982-10-29 1984-05-23 Howden Engineering Limited Cooling strip material
GB2198455A (en) * 1986-12-05 1988-06-15 British Gas Plc Heating strip or wire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129836A (en) * 1982-10-29 1984-05-23 Howden Engineering Limited Cooling strip material
GB2198455A (en) * 1986-12-05 1988-06-15 British Gas Plc Heating strip or wire
GB2198455B (en) * 1986-12-05 1991-01-23 British Gas Plc Heating of a metallic strand

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