CN101541982B - 一种吸氧和吸氮减少的铁合金喂入设备及其喂入方法 - Google Patents

一种吸氧和吸氮减少的铁合金喂入设备及其喂入方法 Download PDF

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Publication number
CN101541982B
CN101541982B CN2006800556590A CN200680055659A CN101541982B CN 101541982 B CN101541982 B CN 101541982B CN 2006800556590 A CN2006800556590 A CN 2006800556590A CN 200680055659 A CN200680055659 A CN 200680055659A CN 101541982 B CN101541982 B CN 101541982B
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CN
China
Prior art keywords
pipe
rare gas
gas element
underfeed
supply
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.)
Expired - Fee Related
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CN2006800556590A
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English (en)
Chinese (zh)
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CN101541982A (zh
Inventor
洪基键
赵晟完
李喜镐
金东植
朴柱炫
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Posco Holdings Inc
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Posco Co Ltd
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Filing date
Publication date
Priority claimed from KR1020060079693A external-priority patent/KR100812018B1/ko
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Priority claimed from PCT/KR2006/005406 external-priority patent/WO2008023863A1/en
Publication of CN101541982A publication Critical patent/CN101541982A/zh
Application granted granted Critical
Publication of CN101541982B publication Critical patent/CN101541982B/zh
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    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/005—Manufacture of stainless steel
    • 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
    • C21C7/0006—Adding metallic additives

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
CN2006800556590A 2006-08-23 2006-12-12 一种吸氧和吸氮减少的铁合金喂入设备及其喂入方法 Expired - Fee Related CN101541982B (zh)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
KR1020060079692 2006-08-23
KR1020060079693A KR100812018B1 (ko) 2006-08-23 2006-08-23 확산부가 구비된 합금철 투입장치
KR1020060079693 2006-08-23
KR10-2006-0079693 2006-08-23
KR1020060079692A KR100812017B1 (ko) 2006-08-23 2006-08-23 흡산 및 흡질이 감소된 래들처리방법
KR10-2006-0079692 2006-08-23
PCT/KR2006/005406 WO2008023863A1 (en) 2006-08-23 2006-12-12 A ferro-alloy inserting apparatus with reduced absorption of oxygen and absorption of nitrogen and inserting method thereof

Publications (2)

Publication Number Publication Date
CN101541982A CN101541982A (zh) 2009-09-23
CN101541982B true CN101541982B (zh) 2013-01-02

Family

ID=39385138

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2006800556590A Expired - Fee Related CN101541982B (zh) 2006-08-23 2006-12-12 一种吸氧和吸氮减少的铁合金喂入设备及其喂入方法

Country Status (2)

Country Link
KR (1) KR100812017B1 (ko)
CN (1) CN101541982B (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101249132B1 (ko) 2011-08-01 2013-04-02 주식회사 포스코 페라이트계 스테인리스강 흡질방지 장치
CN105219917B (zh) * 2014-06-11 2018-02-27 鞍钢股份有限公司 非真空感应炉合金加入装置及方法
KR101641778B1 (ko) * 2014-10-10 2016-07-22 주식회사 포스코 코너 크랙 방지를 위한 중고탄소강 정련 방법
KR101853769B1 (ko) 2016-08-29 2018-05-02 주식회사 포스코 합금강 제조방법
CN108285947B (zh) * 2017-02-28 2019-09-27 安徽工业大学 一种保护出钢过程中的钢水合金化方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5919283A (en) * 1996-11-06 1999-07-06 Premelt Pump, Inc. Method and apparatus for introducing metal chips into molten metal bath
US6136064A (en) * 1994-12-15 2000-10-24 Hayes Lemmerz International, Inc. Method for charging a reverbratory furnace with metal chips
US6409962B1 (en) * 2000-10-02 2002-06-25 Rossborough Manufacturing Co. Powder injector for ladle
JP2005002369A (ja) * 2003-06-09 2005-01-06 Sumitomo Metal Ind Ltd 溶鋼精錬装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02221315A (ja) * 1989-02-21 1990-09-04 Nkk Corp 転炉出鋼方法および出鋼口の外気吸引防止装置
JPH0641615B2 (ja) * 1989-10-27 1994-06-01 新日本製鐵株式会社 加圧型転炉に於ける副原料投入装置
JPH06212240A (ja) * 1993-01-13 1994-08-02 Shinagawa Refract Co Ltd 真空脱ガス処理における吸窒防止方法
JPH07138630A (ja) * 1993-11-15 1995-05-30 Kawasaki Steel Corp 金属精錬炉における粉粒体投入装置および投入ランス
JPH08311530A (ja) * 1995-05-16 1996-11-26 Nkk Corp 脱ガス精錬方法
KR100698755B1 (ko) 2005-12-23 2007-03-23 주식회사 포스코 합금철 투입장치
KR101249201B1 (ko) * 2005-12-23 2013-04-02 주식회사 포스코 래들처리방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6136064A (en) * 1994-12-15 2000-10-24 Hayes Lemmerz International, Inc. Method for charging a reverbratory furnace with metal chips
US5919283A (en) * 1996-11-06 1999-07-06 Premelt Pump, Inc. Method and apparatus for introducing metal chips into molten metal bath
US6409962B1 (en) * 2000-10-02 2002-06-25 Rossborough Manufacturing Co. Powder injector for ladle
JP2005002369A (ja) * 2003-06-09 2005-01-06 Sumitomo Metal Ind Ltd 溶鋼精錬装置

Also Published As

Publication number Publication date
KR100812017B1 (ko) 2008-03-10
KR20080017892A (ko) 2008-02-27
CN101541982A (zh) 2009-09-23

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CF01 Termination of patent right due to non-payment of annual fee