JPH0442451B2 - - Google Patents
Info
- Publication number
- JPH0442451B2 JPH0442451B2 JP23196789A JP23196789A JPH0442451B2 JP H0442451 B2 JPH0442451 B2 JP H0442451B2 JP 23196789 A JP23196789 A JP 23196789A JP 23196789 A JP23196789 A JP 23196789A JP H0442451 B2 JPH0442451 B2 JP H0442451B2
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- blowing
- concentration
- oxygen
- blow
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 92
- 239000010959 steel Substances 0.000 claims description 92
- 238000007664 blowing Methods 0.000 claims description 70
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 40
- 229910052760 oxygen Inorganic materials 0.000 claims description 40
- 239000001301 oxygen Substances 0.000 claims description 40
- 229910052698 phosphorus Inorganic materials 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 35
- 229910052748 manganese Inorganic materials 0.000 claims description 31
- 229910052717 sulfur Inorganic materials 0.000 claims description 31
- 229910052799 carbon Inorganic materials 0.000 claims description 20
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 16
- 239000002893 slag Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 18
- 238000004458 analytical method Methods 0.000 description 16
- 239000000203 mixture Substances 0.000 description 15
- 235000012255 calcium oxide Nutrition 0.000 description 9
- 239000000292 calcium oxide Substances 0.000 description 9
- 238000010079 rubber tapping Methods 0.000 description 8
- 229910000677 High-carbon steel Inorganic materials 0.000 description 6
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 6
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 6
- 239000010459 dolomite Substances 0.000 description 6
- 229910000514 dolomite Inorganic materials 0.000 description 6
- 239000010436 fluorite Substances 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000005070 sampling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000002436 steel type Substances 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 229910000914 Mn alloy Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23196789A JPH02170909A (ja) | 1988-09-07 | 1989-09-07 | 転炉の吹止成分推定方法 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22508888 | 1988-09-07 | ||
| JP63-225088 | 1988-09-07 | ||
| JP63-225089 | 1988-09-07 | ||
| JP23196789A JPH02170909A (ja) | 1988-09-07 | 1989-09-07 | 転炉の吹止成分推定方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02170909A JPH02170909A (ja) | 1990-07-02 |
| JPH0442451B2 true JPH0442451B2 (enrdf_load_stackoverflow) | 1992-07-13 |
Family
ID=26526431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23196789A Granted JPH02170909A (ja) | 1988-09-07 | 1989-09-07 | 転炉の吹止成分推定方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02170909A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5582105B2 (ja) * | 2011-07-15 | 2014-09-03 | 新日鐵住金株式会社 | 転炉吹錬制御方法 |
-
1989
- 1989-09-07 JP JP23196789A patent/JPH02170909A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02170909A (ja) | 1990-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3329495A (en) | Process for measuring the value of carbon content of a steel bath in an oxygen top-blowing converter | |
| US11966669B2 (en) | Molten metal component estimation device, method of estimating molten metal component, and method of manufacturing molten metal | |
| JPH0442451B2 (enrdf_load_stackoverflow) | ||
| KR20040014599A (ko) | 크롬함유 용강의 탈탄 정련 방법 | |
| JPH0257666B2 (enrdf_load_stackoverflow) | ||
| JP4816513B2 (ja) | 溶鋼成分推定方法 | |
| JP3858150B2 (ja) | 転炉における吹錬終点Ｍｎ濃度の推定方法 | |
| US3607230A (en) | Process for controlling the carbon content of a molten metal bath | |
| JPS5792121A (en) | Method for estimation of phosphorus concentration of steel bath | |
| JPH0675037B2 (ja) | 溶鉄成分の検出方法およびそれに基づく精錬方法 | |
| JPS6112811A (ja) | 転炉製鋼法 | |
| KR102534954B1 (ko) | 전로형 탈인 정련로의 취련 제어 방법 및 취련 제어 장치 | |
| JP3634046B2 (ja) | 溶鋼成分適中精度を向上させたスラグ中の有価金属の還元回収方法 | |
| JPH07118723A (ja) | 転炉精錬法 | |
| JPS6318015A (ja) | 転炉吹錬におけるマンガン濃度の推定方法 | |
| JPH03180418A (ja) | 転炉の溶鋼炭素制御方法 | |
| KR100428582B1 (ko) | 복합취련용 전로에서의 탄소의 이차연소비 예측방법 및용강중 탄소농도의 예측방법 | |
| JPH05156339A (ja) | 転炉精錬における溶鋼炭素濃度の推定方法 | |
| JP3471406B2 (ja) | 溶鋼成分適中精度を向上させたスラグ中の有価金属の還元回収方法 | |
| JPS628481B2 (enrdf_load_stackoverflow) | ||
| BR112021018589B1 (pt) | Método de controle de sopro e aparelho de controle de sopro para forno de refino de desfosforação do tipo conversor | |
| JPH036312A (ja) | 転炉吹錬制御法 | |
| JPH06148167A (ja) | 製鋼スラグに含まれている易還元性金属酸化物の酸素定量分析方法 | |
| JPH0649890B2 (ja) | 転炉吹錬における終点成分推定方法 | |
| JPH11269530A (ja) | 転炉操業方法 |