GB989610A - Air circulating furnaces for heating metals - Google Patents

Air circulating furnaces for heating metals

Info

Publication number
GB989610A
GB989610A GB1321464A GB1321464A GB989610A GB 989610 A GB989610 A GB 989610A GB 1321464 A GB1321464 A GB 1321464A GB 1321464 A GB1321464 A GB 1321464A GB 989610 A GB989610 A GB 989610A
Authority
GB
United Kingdom
Prior art keywords
furnace
air
control unit
fans
heat treatment
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
GB1321464A
Inventor
Gerhard Mai
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.)
Fuchs GmbH
Original Assignee
Fuchs GmbH
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 Fuchs GmbH filed Critical Fuchs GmbH
Priority to GB1321464A priority Critical patent/GB989610A/en
Publication of GB989610A publication Critical patent/GB989610A/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
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof

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)
  • Furnace Details (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

989,610. Control of heat treatment furnaces. FUCHS G.m.b.H. March 31, 1964, No. 13214/64. Heading F4B. In a heat treatment furnace of the air-circulating type, the direction of air circulation is reversed by alternate operation of fans 5a and 5b at each end of the furnace, the alternate operation being effected by signals generated by a control unit 8 and relayed to motors 6a and 6b which drive the fans 5a and 5b respectively, the control unit 8 being preset to operate when the temperature difference between the ends of the furnace, measured by resistance thermometers 9a and 9b, reaches a predetermined value. A regulator 11 controls heating elements 3 by means of thermocouples 12a and 12b measuring absolute air temperature at the furnace ends, and is arranged such that the control unit 8 connects that thermocouple at the entry end of the air, at each change-over.
GB1321464A 1964-03-31 1964-03-31 Air circulating furnaces for heating metals Expired GB989610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1321464A GB989610A (en) 1964-03-31 1964-03-31 Air circulating furnaces for heating metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1321464A GB989610A (en) 1964-03-31 1964-03-31 Air circulating furnaces for heating metals

Publications (1)

Publication Number Publication Date
GB989610A true GB989610A (en) 1965-04-22

Family

ID=10018904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1321464A Expired GB989610A (en) 1964-03-31 1964-03-31 Air circulating furnaces for heating metals

Country Status (1)

Country Link
GB (1) GB989610A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030712A (en) * 1975-02-05 1977-06-21 Alco Standard Corporation Method and apparatus for circulating a heat treating gas
CN111519005A (en) * 2020-04-14 2020-08-11 中国科学院合肥物质科学研究院 Large D-shaped Nb3Sn superconducting coil heat treatment equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030712A (en) * 1975-02-05 1977-06-21 Alco Standard Corporation Method and apparatus for circulating a heat treating gas
US4113426A (en) * 1975-02-05 1978-09-12 Alco Standard Corporation Method for circulating a heat treating gas
CN111519005A (en) * 2020-04-14 2020-08-11 中国科学院合肥物质科学研究院 Large D-shaped Nb3Sn superconducting coil heat treatment equipment

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