KR100406370B1 - 전로슬래그의팽창억제방법 - Google Patents
전로슬래그의팽창억제방법 Download PDFInfo
- Publication number
- KR100406370B1 KR100406370B1 KR10-1998-0058103A KR19980058103A KR100406370B1 KR 100406370 B1 KR100406370 B1 KR 100406370B1 KR 19980058103 A KR19980058103 A KR 19980058103A KR 100406370 B1 KR100406370 B1 KR 100406370B1
- Authority
- KR
- South Korea
- Prior art keywords
- converter slag
- slag
- converter
- quenching
- molten state
- Prior art date
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
- C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
-
- 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
- C21C5/36—Processes yielding slags of special composition
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
Description
화학성분 | FeO | CaO | SiO2 | MgO | MnO | Al2O3 | P2O5 | TiO2 |
함량(중량%) | 13-28 | 37-48 | 7-14 | 5-11 | 3-5 | 2-6 | 1-3 | 1-2 |
급냉을 개시할때의전로슬래그의 온도 (℃) | 중량감소(%) | 유리석회함량(%) |
급냉하지 않음 | 1.04 | 3.2 |
900 | 0.38 | 1.2 |
1200 | 0.30 | 0.9 |
1300 | 0.19 | 0.6 |
1400 | 0.26 | 0.8 |
1500 | 0.15 | 0.5 |
구 분 | 급냉처리 되지 않음 | 급냉처리된 전로슬래그 |
80℃ 수침 팽창율(%) | 2.3 | 0.3 |
Claims (1)
- 전로슬래그를 슬래그 야드에 배재함과 동시에 800-1000℃의 표면온도를 갖는용융 상태의 전로슬래그에 냉각수를 살포하여 급냉함으로써 전로슬래그내의 유리 석회량을 감소시킴을 특징으로 하는 전로 슬래그의 부피팽창성 억제 방법.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1998-0058103A KR100406370B1 (ko) | 1998-12-24 | 1998-12-24 | 전로슬래그의팽창억제방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-1998-0058103A KR100406370B1 (ko) | 1998-12-24 | 1998-12-24 | 전로슬래그의팽창억제방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20000042035A KR20000042035A (ko) | 2000-07-15 |
KR100406370B1 true KR100406370B1 (ko) | 2004-02-14 |
Family
ID=19565279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-1998-0058103A KR100406370B1 (ko) | 1998-12-24 | 1998-12-24 | 전로슬래그의팽창억제방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100406370B1 (ko) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5757815A (en) * | 1980-09-26 | 1982-04-07 | Nippon Steel Corp | Method for accelerating aging of converter slag |
JPH06256045A (ja) * | 1992-07-20 | 1994-09-13 | Sumitomo Metal Ind Ltd | 転炉スラグの改質 |
JPH08119692A (ja) * | 1994-10-17 | 1996-05-14 | Kawasaki Steel Corp | 製鋼スラグのエージング処理方法 |
-
1998
- 1998-12-24 KR KR10-1998-0058103A patent/KR100406370B1/ko not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5757815A (en) * | 1980-09-26 | 1982-04-07 | Nippon Steel Corp | Method for accelerating aging of converter slag |
JPH06256045A (ja) * | 1992-07-20 | 1994-09-13 | Sumitomo Metal Ind Ltd | 転炉スラグの改質 |
JPH08119692A (ja) * | 1994-10-17 | 1996-05-14 | Kawasaki Steel Corp | 製鋼スラグのエージング処理方法 |
Also Published As
Publication number | Publication date |
---|---|
KR20000042035A (ko) | 2000-07-15 |
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