FR2452525A1 - Cement-bonded alloy carrier briquette - for charging cupola furnace, contains carbon-rich ferro-manganese and silicon carbide - Google Patents

Cement-bonded alloy carrier briquette - for charging cupola furnace, contains carbon-rich ferro-manganese and silicon carbide

Info

Publication number
FR2452525A1
FR2452525A1 FR7907921A FR7907921A FR2452525A1 FR 2452525 A1 FR2452525 A1 FR 2452525A1 FR 7907921 A FR7907921 A FR 7907921A FR 7907921 A FR7907921 A FR 7907921A FR 2452525 A1 FR2452525 A1 FR 2452525A1
Authority
FR
France
Prior art keywords
femn
sic
cement
carrier
briquette
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
FR7907921A
Other languages
French (fr)
Other versions
FR2452525B1 (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.)
Frank and Schulte GmbH
Original Assignee
Frank and Schulte GmbH
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 Frank and Schulte GmbH filed Critical Frank and Schulte GmbH
Priority to FR7907921A priority Critical patent/FR2452525B1/en
Publication of FR2452525A1 publication Critical patent/FR2452525A1/en
Application granted granted Critical
Publication of FR2452525B1 publication Critical patent/FR2452525B1/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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/08—Manufacture of cast-iron
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B11/00—Making pig-iron other than in blast furnaces
    • C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/006—Making ferrous alloys compositions used for making ferrous alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Alloy-carrier for charging cupola furnaces consists of a cement-bonded briquette contg. the alloying components Mn and Si. The Mn-carrier is C-rich FeMn, esp. of "carburee" FeMn quality and the Si-carrier is SiC, used in proportions such that the briquettes contains: 8-40% Mn, 9-22% C, 2-9% Fe, 18-45% Si from SiC, 15-30% Portland Cement, 4-8% chemically bonded H2O, 2-7% residual components. The alloy-carriers can be used in hot blast cupolar furnaces, suppress melting losses, can be prepd. from cheap raw materials and effectively desulphurise cast iron. Oxidn. of alloying components in higher cupolar range is prevented. SiC forms a protective coating for FeMn. FeMn and SiC decompsn. starts above 1150 degrees C, released in status nascendi, causes lasting deoxidation.
FR7907921A 1979-03-29 1979-03-29 ALLOY PACKAGING FOR SUPPLY OF CUBILOTS Expired FR2452525B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7907921A FR2452525B1 (en) 1979-03-29 1979-03-29 ALLOY PACKAGING FOR SUPPLY OF CUBILOTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7907921A FR2452525B1 (en) 1979-03-29 1979-03-29 ALLOY PACKAGING FOR SUPPLY OF CUBILOTS

Publications (2)

Publication Number Publication Date
FR2452525A1 true FR2452525A1 (en) 1980-10-24
FR2452525B1 FR2452525B1 (en) 1982-11-19

Family

ID=9223709

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7907921A Expired FR2452525B1 (en) 1979-03-29 1979-03-29 ALLOY PACKAGING FOR SUPPLY OF CUBILOTS

Country Status (1)

Country Link
FR (1) FR2452525B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB980214A (en) * 1962-12-03 1965-01-13 Foseco Int Cupola additive
DE1270057B (en) * 1960-08-29 1968-06-12 Union Carbide Corp Process for melting gray-hardening cast iron
FR1544784A (en) * 1967-09-26 1968-11-08 Foseco Trading Ag Process and product relevant to the treatment of cast iron
DE2042034A1 (en) * 1970-08-25 1972-03-02 Scherer Dieter R Cast iron including ductile cast iron prodn - from steel scrap briquettes contg silicon and carbon
FR2395318A1 (en) * 1977-06-21 1979-01-19 Kessl Werner USE OF SILICON CARBIDE AS AN ADDITION IN THE CUBILOT

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1270057B (en) * 1960-08-29 1968-06-12 Union Carbide Corp Process for melting gray-hardening cast iron
GB980214A (en) * 1962-12-03 1965-01-13 Foseco Int Cupola additive
FR1544784A (en) * 1967-09-26 1968-11-08 Foseco Trading Ag Process and product relevant to the treatment of cast iron
DE2042034A1 (en) * 1970-08-25 1972-03-02 Scherer Dieter R Cast iron including ductile cast iron prodn - from steel scrap briquettes contg silicon and carbon
FR2395318A1 (en) * 1977-06-21 1979-01-19 Kessl Werner USE OF SILICON CARBIDE AS AN ADDITION IN THE CUBILOT

Also Published As

Publication number Publication date
FR2452525B1 (en) 1982-11-19

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Legal Events

Date Code Title Description
ST Notification of lapse