GB765423A - Improvements in methods of and apparatus for the treatment of molten iron and steel - Google Patents

Improvements in methods of and apparatus for the treatment of molten iron and steel

Info

Publication number
GB765423A
GB765423A GB6191/55A GB619155A GB765423A GB 765423 A GB765423 A GB 765423A GB 6191/55 A GB6191/55 A GB 6191/55A GB 619155 A GB619155 A GB 619155A GB 765423 A GB765423 A GB 765423A
Authority
GB
United Kingdom
Prior art keywords
iron
pressure
vessel
magnesium
pressure vessel
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
GB6191/55A
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.)
Mond Nickel Co Ltd
Original Assignee
Mond Nickel 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 Mond Nickel Co Ltd filed Critical Mond Nickel Co Ltd
Publication of GB765423A publication Critical patent/GB765423A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00Refining of pig-iron; Cast iron
    • C21C1/10Making spheroidal graphite cast-iron
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C1/00Refining of pig-iron; Cast iron
    • C21C1/02Dephosphorising or desulfurising
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/0081Treating and handling under pressure

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Milling Processes (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

765,423. Making additions to iron and steel. MOND NICKEL CO., Ltd. March 2, 1955 [March 6, 1954; Jan. 27, 1955], No. 6191/55. Classes 72 and 82(1) An addition agent of lower boiling point than iron is introduced into molten iron or steel by placing the addition agent and a container of the molten metal separately into a pressure vessel, introducing a compressed gas into the pressure vessel to raise the pressure to a value at least equal to the vapour pressure of the addition element at ' the temperature within the vessel and mixing the addition element and the molten metal with vigorous stirring whilst maintaining the pressures. More than one addition element may be added, the pressure then being kept above that of the addition element having the highest vapour pressure. In the apparatus for treating iron with magnesium shown, a ladle 48 containing the iron is placed within the pressure vessel 6, the lid 11 of the vessel mounted in a framework 12 is swung into position and the vessel is raised by the hydraulic ram 4 to force it against the lid. Air is expelled from the pressure vessel through a cock 41 by argon from a cylinder 32, the cock 41 then being closed and the pressure allowed to build up to the desired value. An openwork container 20 holding the magnesium is then lowered into and reciprocated in the iron by a compressed air piston 10. When the mixing is complete, a valve 31 in the argon supply line is closed and the cock 41 opened to allow the argon in the pressure vessel to pass into a low-pressure gas reservoir 44. The cock 41 is then closed again and the pressure vessel opened and the ladle removed. The argon in the reservoir 44 may be compressed by a compressor 38 for re-use. In other forms of apparatus described the magnesium may be added to the iron by (1) lowering an openwork container into the iron and stirring the melt by induction, (2) lowering the container into the iron and rotating it to cause stirring. (3) pouring the iron from an upper ladle on to the magnesium in a lower ladle, or (4) supporting the magnesium on a disc which is then reciprocated in the iron. The upper part of the pressure vessel may be lifted by a crane and lowered in turn on to a number of bottom parts and the vessel may be pressurized by compressed air.
GB6191/55A 1954-03-06 1955-03-02 Improvements in methods of and apparatus for the treatment of molten iron and steel Expired GB765423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR664821 1954-03-06

Publications (1)

Publication Number Publication Date
GB765423A true GB765423A (en) 1957-01-09

Family

ID=8698805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6191/55A Expired GB765423A (en) 1954-03-06 1955-03-02 Improvements in methods of and apparatus for the treatment of molten iron and steel

Country Status (5)

Country Link
US (1) US2781260A (en)
DE (1) DE1275556B (en)
DK (1) DK105480C (en)
ES (2) ES220493A1 (en)
GB (1) GB765423A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016273A1 (en) * 1979-03-27 1980-10-01 Richard Aloysius Flinn Process and apparatus for the production of metallic compositions comprising at least two constituents, one constituent having a melting temperature exceeding the boiling temperature of the other
EP0090654A2 (en) * 1982-03-29 1983-10-05 Elkem Metals Company Alloy and process for producing ductile and compacted graphite cast irons
EP0193948A1 (en) * 1985-03-05 1986-09-10 Klöckner-Humboldt-Deutz Aktiengesellschaft Device and process for keeping molten metals warm
GB2294272B (en) * 1994-07-28 1998-02-25 Honda Motor Co Ltd Method for producing metal-ceramic composite materials.

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852246A (en) * 1956-02-27 1958-09-16 Janco Nathan Vacuum degassing apparatus
US2886308A (en) * 1957-04-15 1959-05-12 A J Boynton & Co Lance handling apparatus
US3026102A (en) * 1958-03-18 1962-03-20 Pennsylvania Engineering Corp Hood post crane
US3138648A (en) * 1958-11-19 1964-06-23 Pennsylvania Engineering Corp Exhaust hood for oxygen furnaces
GB1054885A (en) * 1964-06-08
DE1758040B1 (en) * 1968-03-23 1974-07-18 Rheinstahl Huettenwerke Ag Process for desulfurization and deoxidization of carbonaceous iron melts in a ladle and device for its implementation
GB1233278A (en) * 1968-10-23 1971-05-26
US3598383A (en) * 1969-01-14 1971-08-10 William H Moore Method and apparatus for incorporating additives in a melt
US3619173A (en) * 1969-02-18 1971-11-09 Kaiser Ind Inc Method for the controlled addition of volatile treating materials
US3778250A (en) * 1969-02-26 1973-12-11 Jones & Laughlin Steel Corp Method for treating metallic melts
GB1311093A (en) * 1969-03-13 1973-03-21 Materials & Methods Ltd Process for the treatment of molten metals
US3785632A (en) * 1969-03-17 1974-01-15 Rheinstahl Huettenwerke Ag Apparatus for accelerating metallurgical reactions
US3902893A (en) * 1973-01-04 1975-09-02 Ostberg Jan Erik Method for moving and stirring of heavy metallurgical melts
US3827680A (en) * 1973-05-24 1974-08-06 Bethlehem Steel Corp Method and device for retaining material within a plunging bell
US3944195A (en) * 1974-01-08 1976-03-16 Buell Eugene F Apparatus for feeding granular material to a steel bath
JPS51131410A (en) * 1975-05-12 1976-11-15 Kubota Ltd Method for adding low-boiling metal to molten metal
CA1096179A (en) * 1977-01-18 1981-02-24 Kirk D. Miller Molten metal treatment
EP0023931A1 (en) * 1979-08-09 1981-02-18 Vereinigte Edelstahlwerke Aktiengesellschaft (Vew) Process for making high purity steels and alloys by melting
IT1153176B (en) * 1982-08-26 1987-01-14 Franco Zanardi PROCESS FOR THE MANUFACTURE OF SPHEROIDAL CAST IRON AND MACHINE FOR THE APPLICATION OF THE PROCEDURE ITSELF
CH667466A5 (en) * 1985-12-23 1988-10-14 Fischer Ag Georg PROCESS FOR POST-TREATMENT OF AN IRON CAST MELT.
US4865808A (en) * 1987-03-30 1989-09-12 Agency Of Industrial Science And Technology Method for making hypereutetic Al-Si alloy composite materials
IT1248457B (en) * 1991-04-05 1995-01-19 Benet Di Bennati Ettore METHOD AND EQUIPMENT FOR THE TREATMENT OF METAL BATHS BY MEANS OF A HIGH POTENTIAL OF GAS OR STEAM
US20180104745A1 (en) * 2016-10-17 2018-04-19 Ecole Polytechnique Treatment of melt for atomization technology
RU2754337C1 (en) * 2020-11-06 2021-09-01 Публичное акционерное общество "Трубная металлургическая компания" (ПАО "ТМК") Method for production of nitrogen-doped steel in bucket
CN114485157A (en) * 2021-12-20 2022-05-13 中信戴卡股份有限公司 Magnesium alloy material smelting device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE87367C (en) *
DE309114C (en) *
USRE19849E (en) * 1936-02-11 Process fob the production of
US13849A (en) * 1855-11-27 krake
BE493057A (en) *
US1707161A (en) * 1926-01-14 1929-03-26 Dow Chemical Co Melting pot for light metals and alloys thereof
US1808145A (en) * 1929-07-10 1931-06-02 Adolph W Machlet Brass-melting apparatus
DE658197C (en) * 1930-11-02 1938-03-24 Eugen Piwowarsky Dr Ing Process for producing high quality cast iron
US2485760A (en) * 1947-03-22 1949-10-25 Int Nickel Co Cast ferrous alloy
CH279686A (en) * 1949-05-07 1951-12-15 Alois Dr Vogt Method and device for operating melting and casting furnaces operating under vacuum.
DE843166C (en) * 1950-12-16 1952-07-07 Freiherr Hans Prinz Von Buchau Method and device for alloying metals

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0016273A1 (en) * 1979-03-27 1980-10-01 Richard Aloysius Flinn Process and apparatus for the production of metallic compositions comprising at least two constituents, one constituent having a melting temperature exceeding the boiling temperature of the other
EP0090654A2 (en) * 1982-03-29 1983-10-05 Elkem Metals Company Alloy and process for producing ductile and compacted graphite cast irons
EP0090654A3 (en) * 1982-03-29 1984-03-07 Elkem Metals Company Alloy and process for producing ductile and compacted graphite cast irons
EP0193948A1 (en) * 1985-03-05 1986-09-10 Klöckner-Humboldt-Deutz Aktiengesellschaft Device and process for keeping molten metals warm
GB2294272B (en) * 1994-07-28 1998-02-25 Honda Motor Co Ltd Method for producing metal-ceramic composite materials.
US5786035A (en) * 1994-07-28 1998-07-28 Honda Giken Kogyo Kabushiki Kaisha Method for producing metal-ceramic composite materials

Also Published As

Publication number Publication date
ES220493A1 (en) 1955-06-01
US2781260A (en) 1957-02-12
DE1275556B (en) 1968-08-22
ES220494A1 (en) 1955-06-01
DK105480C (en) 1966-10-03

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