FR2445385A1 - Deoxidation agent for steel melts - consists of an aluminium-calcium-silicon alloy - Google Patents

Deoxidation agent for steel melts - consists of an aluminium-calcium-silicon alloy

Info

Publication number
FR2445385A1
FR2445385A1 FR7836332A FR7836332A FR2445385A1 FR 2445385 A1 FR2445385 A1 FR 2445385A1 FR 7836332 A FR7836332 A FR 7836332A FR 7836332 A FR7836332 A FR 7836332A FR 2445385 A1 FR2445385 A1 FR 2445385A1
Authority
FR
France
Prior art keywords
steel
aluminium
calcium
melts
silicon alloy
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.)
Withdrawn
Application number
FR7836332A
Other languages
French (fr)
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.)
Evonik Operations GmbH
Original Assignee
SKW Trostberg 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 SKW Trostberg AG filed Critical SKW Trostberg AG
Priority to FR7836332A priority Critical patent/FR2445385A1/en
Publication of FR2445385A1 publication Critical patent/FR2445385A1/en
Withdrawn legal-status Critical Current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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent

Landscapes

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

Abstract

The Al alloy is composed of 1-10 wt.% Ca, 3-20 wt.% Si, balance Al and usual impurities and is used for the deoxidation of steel in place of Al alone. Method avoids the formation of Al oxide striations in the steel and reduces the wear of cutting tools associated with hard Al oxide inclusions. In an example, a series of 18 melts composed of 41Cr4 steel, for the prodn. of drop-forged vehicle components, were filled into a 70t ladle. The melts were deoxidised by adding 0.7 kg./t. Al alloy of compsn. 1.8% Ca, l% Si, balance Al. The melt had a lower O content than is usual and according to Standard VDEh 1570/71 the K4 value lies below 10 in 93% of the samples taken.
FR7836332A 1978-12-26 1978-12-26 Deoxidation agent for steel melts - consists of an aluminium-calcium-silicon alloy Withdrawn FR2445385A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7836332A FR2445385A1 (en) 1978-12-26 1978-12-26 Deoxidation agent for steel melts - consists of an aluminium-calcium-silicon alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7836332A FR2445385A1 (en) 1978-12-26 1978-12-26 Deoxidation agent for steel melts - consists of an aluminium-calcium-silicon alloy

Publications (1)

Publication Number Publication Date
FR2445385A1 true FR2445385A1 (en) 1980-07-25

Family

ID=9216525

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7836332A Withdrawn FR2445385A1 (en) 1978-12-26 1978-12-26 Deoxidation agent for steel melts - consists of an aluminium-calcium-silicon alloy

Country Status (1)

Country Link
FR (1) FR2445385A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3817876A4 (en) * 2018-07-03 2022-08-03 Bozel Brasil Sa Calcium, aluminum and silicon alloy, as well as a process for the production of the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1089123A (en) * 1953-01-08 1955-03-15 Hu Ttenwerke Phoenix Ag Steel fabrication process for transformers and dynamos
US2767084A (en) * 1955-09-15 1956-10-16 Vanadium Corp Of America Alloy for deoxidizing steel
US3150966A (en) * 1961-05-04 1964-09-29 Rossborough Supply Company Deoxidizing compositions for steel
FR2020663A1 (en) * 1968-10-14 1970-07-17 Sueddeutsche Kalkstickstoff

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1089123A (en) * 1953-01-08 1955-03-15 Hu Ttenwerke Phoenix Ag Steel fabrication process for transformers and dynamos
US2767084A (en) * 1955-09-15 1956-10-16 Vanadium Corp Of America Alloy for deoxidizing steel
US3150966A (en) * 1961-05-04 1964-09-29 Rossborough Supply Company Deoxidizing compositions for steel
FR2020663A1 (en) * 1968-10-14 1970-07-17 Sueddeutsche Kalkstickstoff

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3817876A4 (en) * 2018-07-03 2022-08-03 Bozel Brasil Sa Calcium, aluminum and silicon alloy, as well as a process for the production of the same
US11486026B2 (en) 2018-07-03 2022-11-01 Bozel Brasil Sa Calcium, aluminum and silicon alloy, as well as a process for the production of the same
US11486027B2 (en) 2018-07-03 2022-11-01 Bozel Brasil Sa Calcium, aluminum and silicon alloy, as well as a process for the production of the same

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Legal Events

Date Code Title Description
ST Notification of lapse