FR2410677A1 - Inoculation of molten cast iron - using ferrosilicon together with Mischmetal to produce optimum type of graphite in castings - Google Patents

Inoculation of molten cast iron - using ferrosilicon together with Mischmetal to produce optimum type of graphite in castings

Info

Publication number
FR2410677A1
FR2410677A1 FR7834444A FR7834444A FR2410677A1 FR 2410677 A1 FR2410677 A1 FR 2410677A1 FR 7834444 A FR7834444 A FR 7834444A FR 7834444 A FR7834444 A FR 7834444A FR 2410677 A1 FR2410677 A1 FR 2410677A1
Authority
FR
France
Prior art keywords
iron
materials
graphite
cast iron
mischmetal
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.)
Granted
Application number
FR7834444A
Other languages
French (fr)
Other versions
FR2410677B3 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2410677A1 publication Critical patent/FR2410677A1/en
Application granted granted Critical
Publication of FR2410677B3 publication Critical patent/FR2410677B3/fr
Granted 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/08—Manufacture of cast-iron

Abstract

The molten iron is uniformly treated with a combination of (a) inoculant, plus (b) lanthanide metals and/or their cpds. The inoculant (a) may contain materials (b); or the molten iron may be treated separately with materials (a, b). Materials (b) are pref. based on cerium. Materials (a, b) are pref. added to iron running along a tapping launder; and the iron flowing along the gutter may be exposed to a stream of oxygen before, during, and/or after adding materials (a, b). The inoculant (a) may also be enriched with oxygen before it is added to the iron. The invention promotes the formation of type A graphite, which reduces or eliminates the presence of cementite in the cast iron.
FR7834444A 1977-12-01 1978-12-01 Inoculation of molten cast iron - using ferrosilicon together with Mischmetal to produce optimum type of graphite in castings Granted FR2410677A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772753853 DE2753853A1 (en) 1977-12-01 1977-12-01 PROCESS FOR THE INACCULATION OF MELT CAST IRON

Publications (2)

Publication Number Publication Date
FR2410677A1 true FR2410677A1 (en) 1979-06-29
FR2410677B3 FR2410677B3 (en) 1981-10-02

Family

ID=6025223

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7834444A Granted FR2410677A1 (en) 1977-12-01 1978-12-01 Inoculation of molten cast iron - using ferrosilicon together with Mischmetal to produce optimum type of graphite in castings

Country Status (2)

Country Link
DE (1) DE2753853A1 (en)
FR (1) FR2410677A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0805216A1 (en) * 1996-05-03 1997-11-05 Metal Trading International S.r.l. Preconditioning of cast iron smelted in an electric furnace to produce safety part castings

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE466059B (en) * 1990-02-26 1991-12-09 Sintercast Ltd PROCEDURES FOR CONTROL AND ADJUSTMENT OF PRIMARY NUCLEAR FORM

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0805216A1 (en) * 1996-05-03 1997-11-05 Metal Trading International S.r.l. Preconditioning of cast iron smelted in an electric furnace to produce safety part castings

Also Published As

Publication number Publication date
DE2753853A1 (en) 1979-06-13
FR2410677B3 (en) 1981-10-02

Similar Documents

Publication Publication Date Title
ATE221133T1 (en) METHOD FOR PRODUCING CAST IRON
FR2410677A1 (en) Inoculation of molten cast iron - using ferrosilicon together with Mischmetal to produce optimum type of graphite in castings
GB1268706A (en) Process for the production of a pig iron with vermicular graphite
FR2045771A7 (en) Corrosion resistant steel
ES2005846A6 (en) Process for the production of nodular cast iron
Gorobets Investigation into the Thermodynamics of the De-Oxidation of Iron by a Magnesium Solution
SU1585340A1 (en) Method of melting steel in oxygen converter
FR2443510A1 (en) Ferrosilicon alloy for deoxidising molten steels - contg. magnesium, calcium and aluminium, to reduce amt. of non-metallic inclusions in steel
GB1478218A (en) Method of producing high duty cast iron
SU533645A1 (en) Slag-forming mixture
JPS538310A (en) Reusing method of steel making slag
SU454261A1 (en) Method of dephosphorization of manganese ores and concentrates
JPS55107715A (en) Blowing method of dephosphorizer to bottom blowing converter
GB985600A (en) Process for the manufacture of unalloyed and alloyed steels having the low content of phosphorus and sulphur customary in special steels
SU449976A1 (en) Alloy for deoxidizing and alloying steel
SU427083A1 (en) MIXTURE FOR STEEL DECOMPOSITION
FR2264096A2 (en) Calcium ferro-silicon with increased carbon content - improves the quality of inoculated grey- and nodular- cast irons
JPS5224905A (en) Tapping method in converters
JPS531620A (en) Production of high chromium steel
Borgianni Thermodynamics of Secondary DES, DEP, and Inclusion Modification Steelmaking Operations
SU372270A1 (en) METHOD OF MANUFACTURE OF NITROGEN-CONTAINING ALLOYED STEELS
SU456835A1 (en) The method of obtaining steel for rolling bearings
Henych Holding and Pouring of Magnesium-Treated Iron--Trends in the Production of Ductile Iron
SU398637A1 (en) Method of deoxidation of steel doped
BE752632A (en) Pneumatically converting cast iron to low - carbon steel

Legal Events

Date Code Title Description
ST Notification of lapse