FR2414560A1 - High purity ferrosilicon contg. silicon and aluminium - and calcium and/or magnesium and cpd. contg. units of alumina, magnesia and/or calcia, silica and ferrous oxide - Google Patents
High purity ferrosilicon contg. silicon and aluminium - and calcium and/or magnesium and cpd. contg. units of alumina, magnesia and/or calcia, silica and ferrous oxideInfo
- Publication number
- FR2414560A1 FR2414560A1 FR7800932A FR7800932A FR2414560A1 FR 2414560 A1 FR2414560 A1 FR 2414560A1 FR 7800932 A FR7800932 A FR 7800932A FR 7800932 A FR7800932 A FR 7800932A FR 2414560 A1 FR2414560 A1 FR 2414560A1
- Authority
- FR
- France
- Prior art keywords
- contg
- cpd
- high purity
- calcia
- magnesia
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Extrusion Of Metal (AREA)
Abstract
High purity Fe-Si contains 10-99.5% Si, 0.05-3% Al, =4% Ca and/or Mg and an intermetallic cpd. (I) in amt. =0.25%. (I) is composed of 1-12.5% Al2O3, 3-40% MgO and/or CaO, =5% FeO and the balance SiO2. In an example, electrolytic Fe was melted in a h.f. induction furnace at 1600 degrees C, and is approx. 7% of ferrosilicon was added to the molten Fe. The ferrosilicon comprised 69.9% Si, 0.61% Al, 0.80% Ca, 1.34% Mg, 0.04% intermetallic cpds. and the rest Fe. (The intermetallic cpds. were composed of 62.0% SiO2, 5.85% Al2O3 and 29.40% CaO + MgO). The 5% Si steel obtd. was cast into an ingot. The ingot was forged into a billet of thickness 10 mm. at 900 degrees C and further worked into a sheet of thickness 1 mm. at 150 degrees C. Crack formation was not observed through working due to low Al2O3 content.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7800932A FR2414560A1 (en) | 1978-01-13 | 1978-01-13 | High purity ferrosilicon contg. silicon and aluminium - and calcium and/or magnesium and cpd. contg. units of alumina, magnesia and/or calcia, silica and ferrous oxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7800932A FR2414560A1 (en) | 1978-01-13 | 1978-01-13 | High purity ferrosilicon contg. silicon and aluminium - and calcium and/or magnesium and cpd. contg. units of alumina, magnesia and/or calcia, silica and ferrous oxide |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2414560A1 true FR2414560A1 (en) | 1979-08-10 |
FR2414560B1 FR2414560B1 (en) | 1985-01-18 |
Family
ID=9203424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7800932A Granted FR2414560A1 (en) | 1978-01-13 | 1978-01-13 | High purity ferrosilicon contg. silicon and aluminium - and calcium and/or magnesium and cpd. contg. units of alumina, magnesia and/or calcia, silica and ferrous oxide |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2414560A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3305354A (en) * | 1964-12-17 | 1967-02-21 | Armco Steel Corp | Method of producing low oxygen oriented silicon-iron |
DE1258433B (en) * | 1963-04-27 | 1968-01-11 | Hoerder Huettenunion Ag | Use of a ferro alloy in the manufacture of steels with good machinability |
FR1579527A (en) * | 1968-03-07 | 1969-08-29 | ||
FR2137427A1 (en) * | 1971-05-10 | 1972-12-29 | Yonemochi Jutaro | Prodn of ferrosilicon - by resistance heated smelting |
JPS5278707A (en) * | 1975-12-26 | 1977-07-02 | Denki Kagaku Kogyo Kk | Preparation of low aluminum ferro-silicon |
-
1978
- 1978-01-13 FR FR7800932A patent/FR2414560A1/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1258433B (en) * | 1963-04-27 | 1968-01-11 | Hoerder Huettenunion Ag | Use of a ferro alloy in the manufacture of steels with good machinability |
US3305354A (en) * | 1964-12-17 | 1967-02-21 | Armco Steel Corp | Method of producing low oxygen oriented silicon-iron |
FR1579527A (en) * | 1968-03-07 | 1969-08-29 | ||
FR2137427A1 (en) * | 1971-05-10 | 1972-12-29 | Yonemochi Jutaro | Prodn of ferrosilicon - by resistance heated smelting |
JPS5278707A (en) * | 1975-12-26 | 1977-07-02 | Denki Kagaku Kogyo Kk | Preparation of low aluminum ferro-silicon |
Non-Patent Citations (2)
Title |
---|
CHEMICAL ABSTRACTS, vol. 74, 1971, no. 56416k, Columbus, Ohio, USA & CS - A - 134 207 (MILAN URBANEC) 15-11-1969 * |
CHEMICAL ABSTRACTS, vol. 88, 1978, réf. no. 64600v, Columbus, Ohio, USA & JP - A - 77 78707 (DENKI KAGAKU KOGYO K.K.) 02-07-1977 * |
Also Published As
Publication number | Publication date |
---|---|
FR2414560B1 (en) | 1985-01-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |