JPH0146563B2 - - Google Patents
Info
- Publication number
- JPH0146563B2 JPH0146563B2 JP56075574A JP7557481A JPH0146563B2 JP H0146563 B2 JPH0146563 B2 JP H0146563B2 JP 56075574 A JP56075574 A JP 56075574A JP 7557481 A JP7557481 A JP 7557481A JP H0146563 B2 JPH0146563 B2 JP H0146563B2
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- ladle
- water
- airtight
- vacuum pump
- 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 67
- 239000010959 steel Substances 0.000 claims description 67
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 30
- 239000002893 slag Substances 0.000 claims description 25
- 239000007789 gas Substances 0.000 claims description 19
- 230000005587 bubbling Effects 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 14
- 239000011261 inert gas Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 11
- 230000001590 oxidative effect Effects 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 229910000677 High-carbon steel Inorganic materials 0.000 claims description 2
- 229910000975 Carbon steel Inorganic materials 0.000 claims 1
- 239000010962 carbon steel Substances 0.000 claims 1
- 238000007670 refining Methods 0.000 description 15
- 238000012423 maintenance Methods 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 238000009849 vacuum degassing Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 229910000882 Ca alloy Inorganic materials 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009847 ladle furnace Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- C21C7/10—Handling in a vacuum
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7557481A JPS57192214A (en) | 1981-05-18 | 1981-05-18 | Molten steel-refining method and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7557481A JPS57192214A (en) | 1981-05-18 | 1981-05-18 | Molten steel-refining method and apparatus therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57192214A JPS57192214A (en) | 1982-11-26 |
| JPH0146563B2 true JPH0146563B2 (ko) | 1989-10-09 |
Family
ID=13580091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7557481A Granted JPS57192214A (en) | 1981-05-18 | 1981-05-18 | Molten steel-refining method and apparatus therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57192214A (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6173817A (ja) * | 1984-09-18 | 1986-04-16 | Sumitomo Electric Ind Ltd | 溶鋼制御精錬法および精錬装置 |
| JPH01170555A (ja) * | 1987-12-25 | 1989-07-05 | Nkk Corp | 溶融金属の清浄化方法 |
| JPH0234715A (ja) * | 1988-07-25 | 1990-02-05 | Sumitomo Electric Ind Ltd | 鋼の溶解及び二次精錬方法 |
| JP3619283B2 (ja) * | 1995-04-20 | 2005-02-09 | 新日本製鐵株式会社 | 中炭素Ａｌキルド鋼の製造方法 |
| JP4032679B2 (ja) * | 2001-08-16 | 2008-01-16 | 住友金属工業株式会社 | 靱性の良好な鋼材およびその製造方法 |
| JP6808873B1 (ja) * | 2020-04-10 | 2021-01-06 | 山田 榮子 | 錆びにくい鉄筋用棒鋼とその製造方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5497517A (en) * | 1978-01-13 | 1979-08-01 | Ee Fuinkuru Ando Sanzu Co | Desulfurization of molten steel |
| JPS5548084A (en) * | 1978-10-03 | 1980-04-05 | Energy Eng Kk | Water sealing system floating roof |
| JPS5641683A (en) * | 1979-09-14 | 1981-04-18 | Ngk Spark Plug Co | Electric selffcleaning ignition plug |
-
1981
- 1981-05-18 JP JP7557481A patent/JPS57192214A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5497517A (en) * | 1978-01-13 | 1979-08-01 | Ee Fuinkuru Ando Sanzu Co | Desulfurization of molten steel |
| JPS5548084A (en) * | 1978-10-03 | 1980-04-05 | Energy Eng Kk | Water sealing system floating roof |
| JPS5641683A (en) * | 1979-09-14 | 1981-04-18 | Ngk Spark Plug Co | Electric selffcleaning ignition plug |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57192214A (en) | 1982-11-26 |
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