KR100896642B1 - 고질소용강의 제조방법 - Google Patents
고질소용강의 제조방법 Download PDFInfo
- Publication number
- KR100896642B1 KR100896642B1 KR20010079467A KR20010079467A KR100896642B1 KR 100896642 B1 KR100896642 B1 KR 100896642B1 KR 20010079467 A KR20010079467 A KR 20010079467A KR 20010079467 A KR20010079467 A KR 20010079467A KR 100896642 B1 KR100896642 B1 KR 100896642B1
- Authority
- KR
- South Korea
- Prior art keywords
- nitrogen
- converter
- steel
- blowing
- molten steel
- Prior art date
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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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
Description
구분 | 질소취입량 | 취입시간 | 종점질소농도 |
종래예 | 0 | 0 | 15ppm |
발명예 1 | 3Nm3/min-ton-steel | 2분 | 32ppm |
발명예 2 | 3Nm3/min-ton-steel | 3분 | 56ppm |
발명예 3 | 3Nm3/min-ton-steel | 4분 | 71ppm |
Claims (1)
- 용선 및 고철을 주원료로 하고 산소랜스를 통해 산소를 취입하여 정련하는 전로 정련조업(취련)을 통하여 고질소 용강을 제조하는 방법에 있어서, 상기 전로 정련조업(취련)이 완료된 후에, 통상의 취련 높이에서 상기 산소랜스를 통하여 2.5~3.5 Nm3/min-ton-steel의 유량으로 질소를 1분~4분동안 취입하는 것을 특징으로 하는 고질소 용강의 제조방법
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20010079467A KR100896642B1 (ko) | 2001-12-14 | 2001-12-14 | 고질소용강의 제조방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20010079467A KR100896642B1 (ko) | 2001-12-14 | 2001-12-14 | 고질소용강의 제조방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030049294A KR20030049294A (ko) | 2003-06-25 |
KR100896642B1 true KR100896642B1 (ko) | 2009-05-08 |
Family
ID=29575113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR20010079467A KR100896642B1 (ko) | 2001-12-14 | 2001-12-14 | 고질소용강의 제조방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100896642B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101705054B1 (ko) * | 2015-10-29 | 2017-02-09 | 주식회사 포스코 | 제강 조업 방법 |
KR102135159B1 (ko) * | 2017-12-26 | 2020-07-17 | 주식회사 포스코 | 저탄소 고망간강의 정련방법 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950012418A (ko) * | 1993-10-27 | 1995-05-16 | 이헌조 | 영상기록 재생기의 음성버즈(buzz) 제거장치 |
KR950018520A (ko) * | 1993-12-14 | 1995-07-22 | 조말수 | 저수소 고질소강의 제조방법 |
-
2001
- 2001-12-14 KR KR20010079467A patent/KR100896642B1/ko not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950012418A (ko) * | 1993-10-27 | 1995-05-16 | 이헌조 | 영상기록 재생기의 음성버즈(buzz) 제거장치 |
KR950018520A (ko) * | 1993-12-14 | 1995-07-22 | 조말수 | 저수소 고질소강의 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20030049294A (ko) | 2003-06-25 |
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