GB1147365A - Improvements in or relating to method of heating a metal - Google Patents

Improvements in or relating to method of heating a metal

Info

Publication number
GB1147365A
GB1147365A GB30411/67A GB3041167A GB1147365A GB 1147365 A GB1147365 A GB 1147365A GB 30411/67 A GB30411/67 A GB 30411/67A GB 3041167 A GB3041167 A GB 3041167A GB 1147365 A GB1147365 A GB 1147365A
Authority
GB
United Kingdom
Prior art keywords
air
supply
fuel
heating
supplied
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
GB30411/67A
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.)
Selas Corp of America
Original Assignee
Selas Corp of America
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 Selas Corp of America filed Critical Selas Corp of America
Publication of GB1147365A publication Critical patent/GB1147365A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J17/00—Forge 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
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers

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)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)

Abstract

1,147,365. Metal heating furnaces. SELAS CORP. OF AMERICA. 30 June, 1967 [1 Aug., 1966], No. 30411/67. Heading F4B. In a heating furnace 1 metal slabs or billets 2 mounted on supports 3 are heated up to their oxidizing temperature by a stoichiometric fuel-air mixture supplied by a plurality of radiant burners 4, heating being continued thereafter under reducing conditions using a non-stoichiometric mixture having at least a 40% deficiency of air. Each burner includes a refractory block 5, and a combustion chamber 7 supplied with fuel through a pipe 21 from a main conduit 20 and primary air through a connection 12 from a main supply 9. A vent 8 is supplied with air through conduit 18 to aspirate combustion gases from the furnace through the chamber 7, thus preheating the combustion air. Secondary air supply to each burner is via pipe 15. The furnace temperature is measured by a thermocouple 23 which is connected into a circuit incorporating a pneumatic control device 25 to control the supply of burner fuel which in turn controls the supply of primary air via a further control instrument 31. On attaining the temperature at which the metal slabs oxidize, as measured by a thermocouple 34, the air-fuel ratio is changed to produce reducing conditions. Control instrument 36 actuates a valve 38 to supply secondary air to the burners, the primary air supply being simultaneously reduced via control instrument 31.
GB30411/67A 1966-08-01 1967-06-30 Improvements in or relating to method of heating a metal Expired GB1147365A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US569340A US3345846A (en) 1966-08-01 1966-08-01 Metal heating

Publications (1)

Publication Number Publication Date
GB1147365A true GB1147365A (en) 1969-04-02

Family

ID=24275021

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30411/67A Expired GB1147365A (en) 1966-08-01 1967-06-30 Improvements in or relating to method of heating a metal

Country Status (4)

Country Link
US (1) US3345846A (en)
BE (1) BE702050A (en)
FR (1) FR1557656A (en)
GB (1) GB1147365A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315540A1 (en) * 1972-03-29 1973-10-18 Est Aciers Fins PROCEDURE FOR CONTROLLING THE VOLUMES OF GAS INFLOWING A SYSTEM

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710608A (en) * 1970-12-02 1973-01-16 Inland Steel Co Method for heating unfinished tellurium-containing steel articles before hot rolling
DE2517957C2 (en) * 1975-04-23 1977-05-12 Norddeutsche Affinerie PROCEDURE FOR INDEPENDENT MIXTURE AND POWER ADJUSTMENT IN MULTI-BURNER MANHOLE FURNACES FOR MELTING METALS
US4272239A (en) * 1979-11-05 1981-06-09 Midland-Ross Corporation Direct heating of heat treat furnace chamber
US4474044A (en) * 1982-09-02 1984-10-02 Mcdonnell Douglas Corporation Apparatus and process for superplastically forming metals
US4547150A (en) * 1984-05-10 1985-10-15 Midland-Ross Corporation Control system for oxygen enriched air burner
IT1251416B (en) * 1991-10-23 1995-05-09 Videocolor Spa MANUFACTURING PROCESS OF A COLOR SELECTION MASK FOR A CATHODE RAY TUBE AND DEVICE FOR THE REALIZATION OF SUCH PROCESS
US8075304B2 (en) * 2006-10-19 2011-12-13 Wayne/Scott Fetzer Company Modulated power burner system and method
CN106077411B (en) * 2016-06-21 2018-05-18 上海长特锻造有限公司 A kind of temperature automatic control forge furnace

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125327A (en) * 1964-03-17 williams
GB697734A (en) * 1950-07-25 1953-09-30 Metallurg Engineers Ltd Improvements in and relating to the heat treatment of metals
US2844365A (en) * 1954-04-09 1958-07-22 Metallurg Processes Co Furnace for neutral heating of metal with neutral preheat
US2845260A (en) * 1954-04-09 1958-07-29 Metallurg Processes Co Neutral heating with controlled preheat
US2799491A (en) * 1954-12-17 1957-07-16 Metallurg Processes Co Furnace for production of controlled furnace atmosphere with recuperative preheating
US2848207A (en) * 1955-09-15 1958-08-19 Metallurg Processes Co Apparatus for the scale free heating of metals
US3022057A (en) * 1958-10-29 1962-02-20 Indugas Ges Fur Ind Gasverwend Direct-heating oven
US3159387A (en) * 1962-08-09 1964-12-01 Combustion Eng Rapid cycling heat treating furnace and method of operation
US3170681A (en) * 1963-06-24 1965-02-23 North American Mfg Apparatus for scale free heating of metals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2315540A1 (en) * 1972-03-29 1973-10-18 Est Aciers Fins PROCEDURE FOR CONTROLLING THE VOLUMES OF GAS INFLOWING A SYSTEM

Also Published As

Publication number Publication date
US3345846A (en) 1967-10-10
FR1557656A (en) 1969-02-21
BE702050A (en) 1968-01-29

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