FR2427392A1 - Cementite-surface-free cast iron prodn. - by adding modifying mixt. comprising silico-calcium, silico-mischmetal, silumin and cupola coke - Google Patents

Cementite-surface-free cast iron prodn. - by adding modifying mixt. comprising silico-calcium, silico-mischmetal, silumin and cupola coke

Info

Publication number
FR2427392A1
FR2427392A1 FR7816086A FR7816086A FR2427392A1 FR 2427392 A1 FR2427392 A1 FR 2427392A1 FR 7816086 A FR7816086 A FR 7816086A FR 7816086 A FR7816086 A FR 7816086A FR 2427392 A1 FR2427392 A1 FR 2427392A1
Authority
FR
France
Prior art keywords
silico
cast iron
silumin
cementite
mixt
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
FR7816086A
Other languages
French (fr)
Other versions
FR2427392B1 (en
Inventor
L V Peregudov
M M Malashin
A S Naletov
J Y Nenakhov
E A Sokolov
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.)
TUL PK
Original Assignee
TUL PK
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 TUL PK filed Critical TUL PK
Priority to FR7816086A priority Critical patent/FR2427392A1/en
Publication of FR2427392A1 publication Critical patent/FR2427392A1/en
Application granted granted Critical
Publication of FR2427392B1 publication Critical patent/FR2427392B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C35/00—Master alloys for iron or steel
    • C22C35/005—Master alloys for iron or steel based on iron, e.g. ferro-alloys
    • 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

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

A cast iron modifier contg. (by wt.) 30-40% Si, 2-8% rare earth elements, 10-20% Ca, 15-30% Al, 10-30% C, 0.1-0.3% S, balance Fe is added to molten cast iron in the form of a mixt. of 30-55 wt.% silicocalcium, 15-30 wt.% silumin, 5-25 wt.% silicomischmetal, and 10-30 wt.% cupola coke. The amt. added is 0.4-0.8% by wt. The modifier enables high quality castings or 5-10 mm. wall thickness to be mfd. in metal moulds without formation of cementite on the surface of the castings, thus eliminating the need for costly high-temp. annealing.
FR7816086A 1978-05-30 1978-05-30 Cementite-surface-free cast iron prodn. - by adding modifying mixt. comprising silico-calcium, silico-mischmetal, silumin and cupola coke Granted FR2427392A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7816086A FR2427392A1 (en) 1978-05-30 1978-05-30 Cementite-surface-free cast iron prodn. - by adding modifying mixt. comprising silico-calcium, silico-mischmetal, silumin and cupola coke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7816086A FR2427392A1 (en) 1978-05-30 1978-05-30 Cementite-surface-free cast iron prodn. - by adding modifying mixt. comprising silico-calcium, silico-mischmetal, silumin and cupola coke

Publications (2)

Publication Number Publication Date
FR2427392A1 true FR2427392A1 (en) 1979-12-28
FR2427392B1 FR2427392B1 (en) 1980-11-14

Family

ID=9208845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7816086A Granted FR2427392A1 (en) 1978-05-30 1978-05-30 Cementite-surface-free cast iron prodn. - by adding modifying mixt. comprising silico-calcium, silico-mischmetal, silumin and cupola coke

Country Status (1)

Country Link
FR (1) FR2427392A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1338775A (en) * 1962-11-08 1963-09-27 Foseco Trading Ag Treatment of cast iron and metals to be used for this purpose
FR1429743A (en) * 1965-04-02 1966-02-25 Treibacher Chemische Werke Ag Process for treating molten metals and new products thus obtained
FR2049052A1 (en) * 1969-03-15 1971-03-26 Tsniitmash Cast iron modification agent
FR2264886A2 (en) * 1974-03-22 1975-10-17 Centres Rech Scientif Tech In

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1338775A (en) * 1962-11-08 1963-09-27 Foseco Trading Ag Treatment of cast iron and metals to be used for this purpose
FR1429743A (en) * 1965-04-02 1966-02-25 Treibacher Chemische Werke Ag Process for treating molten metals and new products thus obtained
FR2049052A1 (en) * 1969-03-15 1971-03-26 Tsniitmash Cast iron modification agent
FR2264886A2 (en) * 1974-03-22 1975-10-17 Centres Rech Scientif Tech In

Also Published As

Publication number Publication date
FR2427392B1 (en) 1980-11-14

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