GB625390A - Improvements in and relating to the heat treatment of strip metal - Google Patents

Improvements in and relating to the heat treatment of strip metal

Info

Publication number
GB625390A
GB625390A GB2030047A GB2030047A GB625390A GB 625390 A GB625390 A GB 625390A GB 2030047 A GB2030047 A GB 2030047A GB 2030047 A GB2030047 A GB 2030047A GB 625390 A GB625390 A GB 625390A
Authority
GB
United Kingdom
Prior art keywords
tube
furnace
metal
gas
oxidising
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
GB2030047A
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.)
SAMUEL FOX AND Co Ltd
Original Assignee
SAMUEL FOX AND Co 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 SAMUEL FOX AND Co Ltd filed Critical SAMUEL FOX AND Co Ltd
Priority to GB2030047A priority Critical patent/GB625390A/en
Publication of GB625390A publication Critical patent/GB625390A/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
    • C21D9/0043—Muffle furnaces; Retort furnaces
    • 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
    • C21D9/561—Continuous furnaces for strip or wire with a controlled atmosphere or vacuum

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

625,390. Metal Heating furnaces. FOX & CO., Ltd., S., and ASHTON, G. W. July 28, 1947, No. 20300. [Class 51 (ii)] [Also in Group II] In apparatus for the heat treatment of continuous lengths of metal comprising an elongated gas-tight muffle or furnace tube, within which a non-oxidising atmosphere is maintained, extending through a furnace chamber, the tube 20 is made of mild steel which softens.at the working temperature, is welded to an end cover 24a, rests freely on the flat bed 11 of the furnace and on supports 31 in a surrounding sleeve 30 on the inlet side, and is supported internally by channel-shaped blocks 21, 22 of heat resisting steel or refractory material, forming in effect a series of tube lining sections. A metal cover closing the entrance to the tube 20, Fig. 2 (not shown) is formed with a slot for the passage of the metal and upper and lower sealing pads clamped to it engage the metal surfaces. The tube 20 and sleeve 30 are joined at their'ends by a leather bellows allowing free expansion or contraction of the former, which also is subject to a longitudinal tension applied by means of a cable and weights. At the discharge end of the furnace a water-jacketed tube 40, through which the non- oxidising gas, e.g. cracked ammonia, is supplied, is secured in a gas tight manner to the end cover 24c and to a flange 15 on the furnace casing, non-oxidising gas, e.g. burnt ammonia, being also supplied within the furnace chamber.
GB2030047A 1947-07-28 1947-07-28 Improvements in and relating to the heat treatment of strip metal Expired GB625390A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2030047A GB625390A (en) 1947-07-28 1947-07-28 Improvements in and relating to the heat treatment of strip metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2030047A GB625390A (en) 1947-07-28 1947-07-28 Improvements in and relating to the heat treatment of strip metal

Publications (1)

Publication Number Publication Date
GB625390A true GB625390A (en) 1949-06-27

Family

ID=10143695

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2030047A Expired GB625390A (en) 1947-07-28 1947-07-28 Improvements in and relating to the heat treatment of strip metal

Country Status (1)

Country Link
GB (1) GB625390A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860080A (en) * 1956-06-06 1958-11-11 Foote Mineral Co Method for continuously producing thermally-stable nitrided manganese

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860080A (en) * 1956-06-06 1958-11-11 Foote Mineral Co Method for continuously producing thermally-stable nitrided manganese

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