[go: up one dir, main page]

GB718786A - Improvement in flame heating of molten metal in moulds to reduce shrinkage cavities - Google Patents

Improvement in flame heating of molten metal in moulds to reduce shrinkage cavities

Info

Publication number
GB718786A
GB718786A GB234/53A GB23453A GB718786A GB 718786 A GB718786 A GB 718786A GB 234/53 A GB234/53 A GB 234/53A GB 23453 A GB23453 A GB 23453A GB 718786 A GB718786 A GB 718786A
Authority
GB
United Kingdom
Prior art keywords
nozzle
metal
molten metal
top surface
gas
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
GB234/53A
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.)
Union Carbide Corp
Original Assignee
Union Carbide and Carbon 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 Union Carbide and Carbon Corp filed Critical Union Carbide and Carbon Corp
Publication of GB718786A publication Critical patent/GB718786A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • B22D27/06—Heating the top discard of ingots

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

718,786. Blowpipe burners. UNION CARBIDE & CARBON CORPORATION. Jan. 5, 1953, [Jan. 11, 1952.] No. 234/53. Class 75 (1). [Also in Group XXII] In a method of treating molten metal in a mould to reduce piping, an oxy-fuelgas flame is directed against the top surface of the metal from a burner nozzle 21 having drilled ports 33, and the velocity of the combustible mixture is so corelated with the volume ratio of oxygen to fuel gas therein and with the distance between the nozzle and the top surface of the metal that the flame starts at a distance from the face of the nozzle. Preferably the gas mixture flows at a discharge velocity between 60 and 300 metres per second, and the volume ratio of oxygen to fuel gas is between 1.3 and 1.8 to 1 when the fuel gas is natural gas and between 0.4 and 1.1 to 1 when it is coal gas. The nozzle is then positioned between 6 and 31 cms. from the top surface of the metal.
GB234/53A 1952-01-11 1953-01-05 Improvement in flame heating of molten metal in moulds to reduce shrinkage cavities Expired GB718786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US718786XA 1952-01-11 1952-01-11

Publications (1)

Publication Number Publication Date
GB718786A true GB718786A (en) 1954-11-17

Family

ID=22104173

Family Applications (1)

Application Number Title Priority Date Filing Date
GB234/53A Expired GB718786A (en) 1952-01-11 1953-01-05 Improvement in flame heating of molten metal in moulds to reduce shrinkage cavities

Country Status (2)

Country Link
FR (1) FR1069459A (en)
GB (1) GB718786A (en)

Also Published As

Publication number Publication date
FR1069459A (en) 1954-07-08

Similar Documents

Publication Publication Date Title
ES8205456A1 (en) Oxygen aspirator burner and process for firing a furnace with an oxygen-enriched oxidant gas.
GB1065705A (en) Burner apparatus for adding heat to gas turbine exhaust
GB1120326A (en) Method and burner for producing flame jet
GB1171871A (en) Improvements relating to Thermochemical Apparatus.
GB718786A (en) Improvement in flame heating of molten metal in moulds to reduce shrinkage cavities
GB1284309A (en) Method of heating or melting metals
GB828499A (en) Combustion chamber burner for producing glass fibers
GB997875A (en) Process for the production of steels from pig iron
GB937247A (en) Improvements in burning gases for use in making glass fibers
JPS57204709A (en) Combustion furnace controlling generation of nitrogen oxide
GB887168A (en) Method and equipment for the intensive use of oxygen in open hearth furnaces for theproduction of steel
GB768895A (en) A rock piercing blowpipe having an internal combustion chamber
GB782881A (en) Post-mixed desurfacing nozzle for use with many different fuel gases
GB1032988A (en) A gas burner
GB125364A (en) Improvements in and relating to Apparatus for and Method of Burning Combustible Gases.
GB872718A (en) Improvements in the manufacture of steel
GB518494A (en) Improvements in or relating to blowpipes and methods of producing jets
GB1194926A (en) Improvements in or relating to Combustion Burner Assemblies and Methods of Producing Streams of Combustion Gases
GB1461309A (en) Burner means for mrnaces burner means for furnaces
GB1346230A (en) Method of heating an object
GB1497793A (en) Cutting nozzles
GB527808A (en) Improvements in or relating to blowpipes
ES338091A1 (en) Improvements in or relating to the Operation of Blast Furnaces
GB1028687A (en) Burners used in furnaces
FR2287651A1 (en) Universal gas burner nozzle - pressed bridge pieces bounding discharge slots ensure flame stability