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WO2001073139A3 - Compositions et procedes servant a desoxyder l'acier - Google Patents

Compositions et procedes servant a desoxyder l'acier Download PDF

Info

Publication number
WO2001073139A3
WO2001073139A3 PCT/US2001/009647 US0109647W WO0173139A3 WO 2001073139 A3 WO2001073139 A3 WO 2001073139A3 US 0109647 W US0109647 W US 0109647W WO 0173139 A3 WO0173139 A3 WO 0173139A3
Authority
WO
WIPO (PCT)
Prior art keywords
deoxidizing
compositions
molten steel
deoxidation
stage methods
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.)
Ceased
Application number
PCT/US2001/009647
Other languages
English (en)
Other versions
WO2001073139A2 (fr
Inventor
Armando Villarreal
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.)
NEWLAND BART G
Original Assignee
NEWLAND BART G
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 NEWLAND BART G filed Critical NEWLAND BART G
Priority to US10/239,758 priority Critical patent/US20030209104A1/en
Priority to AU2001250996A priority patent/AU2001250996A1/en
Publication of WO2001073139A2 publication Critical patent/WO2001073139A2/fr
Publication of WO2001073139A3 publication Critical patent/WO2001073139A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing

Landscapes

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

Abstract

Compositions de désoxydation et procédés en deux étapes servant à désoxyder l'acier en fusion afin d'obtenir des produits plus purs, à des coûts limités, qu'avec les technologies de désoxydation classiques à base d'aluminium et de silicium. Une première composition de désoxydation est exempte d'aluminium élémentaire et abaisse la teneur en oxygène d'abord par la conversion de carbone en oxyde de carbone, ainsi qu'avec la conversion de silicium en oxyde de silicium. Une deuxième composition de désoxydation ajoutée ultérieurement abaisse la teneur en oxygène à un niveau extrêmement souhaitable, tout en produisant moins d'impuretés d'alumine que les techniques actuelles.
PCT/US2001/009647 2000-03-27 2001-03-27 Compositions et procedes servant a desoxyder l'acier Ceased WO2001073139A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US10/239,758 US20030209104A1 (en) 2001-03-27 2001-03-27 Compositions and method for the deoxidation of steel
AU2001250996A AU2001250996A1 (en) 2000-03-27 2001-03-27 Compositions and methods for the deoxidation of steel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19233300P 2000-03-27 2000-03-27
US60/192,333 2000-03-27

Publications (2)

Publication Number Publication Date
WO2001073139A2 WO2001073139A2 (fr) 2001-10-04
WO2001073139A3 true WO2001073139A3 (fr) 2002-05-23

Family

ID=22709207

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/009647 Ceased WO2001073139A2 (fr) 2000-03-27 2001-03-27 Compositions et procedes servant a desoxyder l'acier

Country Status (2)

Country Link
AU (1) AU2001250996A1 (fr)
WO (1) WO2001073139A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100453658C (zh) * 2007-03-31 2009-01-21 杨宝权 脱氧护炉剂及其制备方法
CN102443705A (zh) * 2012-01-04 2012-05-09 金川集团有限公司 一种雾化法制备金属粉末的复合脱氧剂

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6439313A (en) * 1987-08-05 1989-02-09 Godo Seitetsu Refining method using ferro-silicon alloy coated by carbonic material
US5028257A (en) * 1990-03-10 1991-07-02 Foseco International Limited Metallurgical flux compositions
JPH04259349A (ja) * 1991-02-12 1992-09-14 Nippon Steel Corp 熱間鍛造時に組織が粗大化しない熱鍛非調質鋼の製造方法
JPH04350113A (ja) * 1991-05-28 1992-12-04 Nippon Steel Corp 浸炭熱処理時に結晶粒が粗大化しない肌焼鋼の製造方法
CN1073722A (zh) * 1991-12-25 1993-06-30 冶金工业部攀枝花钢铁公司 净化钢液用复合剂及其使用方法
CN1227266A (zh) * 1999-01-15 1999-09-01 李彦钢 转炉炼钢用脱氧剂

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6439313A (en) * 1987-08-05 1989-02-09 Godo Seitetsu Refining method using ferro-silicon alloy coated by carbonic material
US5028257A (en) * 1990-03-10 1991-07-02 Foseco International Limited Metallurgical flux compositions
JPH04259349A (ja) * 1991-02-12 1992-09-14 Nippon Steel Corp 熱間鍛造時に組織が粗大化しない熱鍛非調質鋼の製造方法
JPH04350113A (ja) * 1991-05-28 1992-12-04 Nippon Steel Corp 浸炭熱処理時に結晶粒が粗大化しない肌焼鋼の製造方法
CN1073722A (zh) * 1991-12-25 1993-06-30 冶金工业部攀枝花钢铁公司 净化钢液用复合剂及其使用方法
CN1227266A (zh) * 1999-01-15 1999-09-01 李彦钢 转炉炼钢用脱氧剂

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DATABASE EPODOC EUROPEAN PATENT OFFICE, THE HAGUE, NL; XP002191979 *
DATABASE EPODOC EUROPEAN PATENT OFFICE, THE HAGUE, NL; XP002191980 *
PATENT ABSTRACTS OF JAPAN vol. 013, no. 227 (C - 600) 25 May 1989 (1989-05-25) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 042 (C - 1020) 26 January 1993 (1993-01-26) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 205 (C - 1051) 22 April 1993 (1993-04-22) *

Also Published As

Publication number Publication date
AU2001250996A1 (en) 2001-10-08
WO2001073139A2 (fr) 2001-10-04

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