GB898986A - Improvements in or relating to the refining of metal - Google Patents

Improvements in or relating to the refining of metal

Info

Publication number
GB898986A
GB898986A GB1032260A GB1032260A GB898986A GB 898986 A GB898986 A GB 898986A GB 1032260 A GB1032260 A GB 1032260A GB 1032260 A GB1032260 A GB 1032260A GB 898986 A GB898986 A GB 898986A
Authority
GB
United Kingdom
Prior art keywords
molten metal
gas
refining
hood
march
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
GB1032260A
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.)
Ruhrstahl AG
Original Assignee
Ruhrstahl AG
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 Ruhrstahl AG filed Critical Ruhrstahl AG
Publication of GB898986A publication Critical patent/GB898986A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

898,986. Degassing metals. RUHRSTAHL A.G. March 23, 1960 [March 24, 1959], No. 10322/60. Class 72. A method for refining molten metal, for example steel, contained in a vessel 4 comprises the use of a hood 2 mounted above the molten metal and having a bottom portion 1 of inverted funnel shape dipping into the molten metal, the interior of the hood being maintained under vacuum or reduced pressure such as by a vacuum pump connected to the pipe 5. During refining a gas or mixture of gases, e.g. hot CO 2 , partially burnt CO, halogens or their compounds, or inert gases such as argon, are blown into the molten metal, either at a level above the vessel base, such as through a lance 3, or at or near the vessel base, such as through a permeable refractory nozzle, plate 8; or both means may be used blowing the same or a different gas through the molten metal, as illustrated in the figure which further shows a combustion chamber 9 for producing very hot CO 2 by burning CO gas in air supplied through pipe 10 and junction 11 respectively.
GB1032260A 1959-03-24 1960-03-23 Improvements in or relating to the refining of metal Expired GB898986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER25203A DE1171940B (en) 1959-03-24 1959-03-24 Device for cleaning steel bars by vacuum treatment

Publications (1)

Publication Number Publication Date
GB898986A true GB898986A (en) 1962-06-20

Family

ID=7401856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1032260A Expired GB898986A (en) 1959-03-24 1960-03-23 Improvements in or relating to the refining of metal

Country Status (3)

Country Link
BE (1) BE588964A (en)
DE (1) DE1171940B (en)
GB (1) GB898986A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598383A (en) * 1969-01-14 1971-08-10 William H Moore Method and apparatus for incorporating additives in a melt
GB2281312A (en) * 1993-08-20 1995-03-01 Leybold Durferrit Gmbh Process for decarburizing carbon-containing molten metal

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE519644A (en) *
DE354218C (en) * 1918-01-12 1922-06-01 Vacuumschmelze Gmbh Process for cleaning and refining liquid iron
DE535527C (en) * 1926-12-16 1931-10-12 Hermann Van Royen Dr Process for making pure steel
US1921060A (en) * 1931-03-23 1933-08-08 Clyde E Williams Method of purifying metals
AT138020B (en) * 1933-07-19 1934-06-25 Berndorfer Metallwarenfabrik Method and device for degassing metal baths.
GB449350A (en) * 1935-03-20 1936-06-25 David Ronald Tullis Improvements in the refining of ferrous and non-ferrous metals and alloys
US2203778A (en) * 1939-07-11 1940-06-11 Emulsions Process Corp Method for producing steel
US2290961A (en) * 1939-11-15 1942-07-28 Essex Res Corp Desulphurizing apparatus
DE894702C (en) * 1944-04-07 1953-10-26 Thyssen Huette Ag Process for the production of wind-cooled steel with Siemens-Martin steel properties
FR1107439A (en) * 1953-09-28 1955-12-30 Niederrheinische Huette Ag Method of metallurgical treatment, by gas, of metal baths and in particular of iron baths
BE533326A (en) * 1953-11-17
DE1025630B (en) * 1956-09-19 1958-03-06 Conradty Fa C Device for introducing gases into metal or other melts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598383A (en) * 1969-01-14 1971-08-10 William H Moore Method and apparatus for incorporating additives in a melt
GB2281312A (en) * 1993-08-20 1995-03-01 Leybold Durferrit Gmbh Process for decarburizing carbon-containing molten metal
GB2281312B (en) * 1993-08-20 1997-04-23 Leybold Durferrit Gmbh Process for decarburizing carbon-containing molten metal

Also Published As

Publication number Publication date
DE1171940B (en) 1964-06-11
BE588964A (en) 1960-07-18

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