KR20030003847A - 저탄소, 저질소 타이타늄 안정화 스테인레스강의 정련 방법 - Google Patents
저탄소, 저질소 타이타늄 안정화 스테인레스강의 정련 방법 Download PDFInfo
- Publication number
- KR20030003847A KR20030003847A KR1020010039687A KR20010039687A KR20030003847A KR 20030003847 A KR20030003847 A KR 20030003847A KR 1020010039687 A KR1020010039687 A KR 1020010039687A KR 20010039687 A KR20010039687 A KR 20010039687A KR 20030003847 A KR20030003847 A KR 20030003847A
- Authority
- KR
- South Korea
- Prior art keywords
- nitrogen
- molten steel
- stainless steel
- concentration
- refining
- Prior art date
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Classifications
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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
-
- 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
-
- 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
- C21C7/064—Dephosphorising; Desulfurising
-
- 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
- C21C7/068—Decarburising
- C21C7/0685—Decarburising of stainless steel
Landscapes
- 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)
Abstract
Description
Claims (2)
- AOD정련로에서 저탄소, 저질소 타이타늄 안정화 스테인레스강의 정련 방법에 있어서,AOD정련로에서의 탄소 및 질소가 충분히 제거되고, 탈산 및 탈황 작업이 완료된 후, 정련로내 용강중에 타이타늄 농도를 0.01-0.2중량% 첨가하여 출강함으로써 스테인레스강의 질소 농도 증가를 억제하는 것을 특징으로 하는 저탄소, 저질소 타이타늄 안정화 스테인레스강의 정련 방법.
- 제 1항에 있어서AOD정련로내 용강중에 알루미늄 농도가 0.005%이하로 제어된 상태에서 상기 타이타늄을 첨가하여 출강함으로써 스테인레스강의 질소 농도 증가를 억제하는 것을 특징으로 하는 저탄소, 저질소 타이타늄 안정화 스테인레스강의 정련 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010039687A KR100743367B1 (ko) | 2001-07-04 | 2001-07-04 | 저탄소, 저질소 타이타늄 안정화 스테인레스강의 정련 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010039687A KR100743367B1 (ko) | 2001-07-04 | 2001-07-04 | 저탄소, 저질소 타이타늄 안정화 스테인레스강의 정련 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030003847A true KR20030003847A (ko) | 2003-01-14 |
KR100743367B1 KR100743367B1 (ko) | 2007-07-26 |
Family
ID=27713307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020010039687A KR100743367B1 (ko) | 2001-07-04 | 2001-07-04 | 저탄소, 저질소 타이타늄 안정화 스테인레스강의 정련 방법 |
Country Status (1)
Country | Link |
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KR (1) | KR100743367B1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100523106B1 (ko) * | 2001-12-17 | 2005-10-19 | 주식회사 포스코 | 저질소 스테인레스강의 정련 방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0651884B2 (ja) * | 1989-06-23 | 1994-07-06 | 新日本製鐵株式会社 | チタン含有鋼の溶製方法 |
JP3422612B2 (ja) * | 1996-01-19 | 2003-06-30 | Jfeスチール株式会社 | 極低炭素冷延鋼板の製造方法 |
KR100384119B1 (ko) * | 1996-07-29 | 2003-08-21 | 주식회사 포스코 | 저탄소, 저질소 스테인레스강의 정련방법 |
JPH10245620A (ja) * | 1997-03-04 | 1998-09-14 | Nippon Steel Corp | Ti,S含有ステンレス鋼の精錬方法 |
-
2001
- 2001-07-04 KR KR1020010039687A patent/KR100743367B1/ko active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100523106B1 (ko) * | 2001-12-17 | 2005-10-19 | 주식회사 포스코 | 저질소 스테인레스강의 정련 방법 |
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KR100743367B1 (ko) | 2007-07-26 |
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