KR100728131B1 - 칼슘 덩어리 및 이를 이용하여 제조된 강재 - Google Patents
칼슘 덩어리 및 이를 이용하여 제조된 강재 Download PDFInfo
- Publication number
- KR100728131B1 KR100728131B1 KR1020050125522A KR20050125522A KR100728131B1 KR 100728131 B1 KR100728131 B1 KR 100728131B1 KR 1020050125522 A KR1020050125522 A KR 1020050125522A KR 20050125522 A KR20050125522 A KR 20050125522A KR 100728131 B1 KR100728131 B1 KR 100728131B1
- Authority
- KR
- South Korea
- Prior art keywords
- calcium
- molten steel
- steel
- present
- content
- 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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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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
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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
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
-
- 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
- C21C7/076—Use of slags or fluxes as treating agents
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- 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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- 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 (5)
- 진공 탈개스 설비에서 칼슘의 함량을 증가시키기 위해 사용되는 칼슘 덩어리에 있어서,20 내지 60 중량%의 Fe와 나머지 중량%의 칼슘계 물질을 함유하는 것을 특징으로 하는,칼슘 덩어리.
- 청구항 1에 있어서,상기 칼슘 덩어리 중 90% 이상의 입도가 10 내지 60mm인 것을 특징으로 하는,칼슘 덩어리.
- 청구항 2에 있어서,상기 칼슘계 물질은 CaSi2인 것을 특징으로 하는,칼슘 덩어리.
- 청구항 1 내지 청구항 3 중 어느 한 항에 따른 칼슘 덩어리를 이용하여 제조된 것을 특징으로 하는 강재.
- 청구항 4에 있어서,구상화된 개재물을 포함하는 것을 특징으로 하는 강재.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050125522A KR100728131B1 (ko) | 2005-12-19 | 2005-12-19 | 칼슘 덩어리 및 이를 이용하여 제조된 강재 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050125522A KR100728131B1 (ko) | 2005-12-19 | 2005-12-19 | 칼슘 덩어리 및 이를 이용하여 제조된 강재 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR100728131B1 true KR100728131B1 (ko) | 2007-06-13 |
Family
ID=38359339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020050125522A Expired - Fee Related KR100728131B1 (ko) | 2005-12-19 | 2005-12-19 | 칼슘 덩어리 및 이를 이용하여 제조된 강재 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100728131B1 (ko) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042202A (zh) * | 2019-04-22 | 2019-07-23 | 南京钢铁股份有限公司 | 一种rh精炼炉真空过程钙处理方法 |
| CN117344090A (zh) * | 2023-09-28 | 2024-01-05 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种钝化镁钙复合球及其在降低重轨钢硫化物夹杂评级方法中的应用 |
| CN117344091A (zh) * | 2023-09-28 | 2024-01-05 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种钝化硅钙复合球及其在降低重轨钢硫化物夹杂评级方法中的应用 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030049612A (ko) * | 2001-12-15 | 2003-06-25 | 주식회사 포스코 | 칼슘-알루미늄 합금철을 이용한 고청정 알루미늄-킬드강제조방법 |
-
2005
- 2005-12-19 KR KR1020050125522A patent/KR100728131B1/ko not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030049612A (ko) * | 2001-12-15 | 2003-06-25 | 주식회사 포스코 | 칼슘-알루미늄 합금철을 이용한 고청정 알루미늄-킬드강제조방법 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110042202A (zh) * | 2019-04-22 | 2019-07-23 | 南京钢铁股份有限公司 | 一种rh精炼炉真空过程钙处理方法 |
| CN117344090A (zh) * | 2023-09-28 | 2024-01-05 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种钝化镁钙复合球及其在降低重轨钢硫化物夹杂评级方法中的应用 |
| CN117344091A (zh) * | 2023-09-28 | 2024-01-05 | 攀钢集团攀枝花钢铁研究院有限公司 | 一种钝化硅钙复合球及其在降低重轨钢硫化物夹杂评级方法中的应用 |
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