JPH0260723B2 - - Google Patents
Info
- Publication number
- JPH0260723B2 JPH0260723B2 JP21207582A JP21207582A JPH0260723B2 JP H0260723 B2 JPH0260723 B2 JP H0260723B2 JP 21207582 A JP21207582 A JP 21207582A JP 21207582 A JP21207582 A JP 21207582A JP H0260723 B2 JPH0260723 B2 JP H0260723B2
- Authority
- JP
- Japan
- Prior art keywords
- decarburization
- molten steel
- gas
- oxygen
- steel
- 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
- 238000005261 decarburization Methods 0.000 claims description 59
- 229910000831 Steel Inorganic materials 0.000 claims description 53
- 239000010959 steel Substances 0.000 claims description 53
- 239000011651 chromium Substances 0.000 claims description 43
- 239000007789 gas Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 19
- 229910044991 metal oxide Inorganic materials 0.000 claims description 19
- 150000004706 metal oxides Chemical class 0.000 claims description 19
- 239000001301 oxygen Substances 0.000 claims description 19
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- 239000003085 diluting agent Substances 0.000 claims description 16
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 15
- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- 229910001882 dioxygen Inorganic materials 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 12
- 229910052804 chromium Inorganic materials 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 9
- 239000011261 inert gas Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 30
- 238000006722 reduction reaction Methods 0.000 description 15
- 230000009467 reduction Effects 0.000 description 13
- 229910052742 iron Inorganic materials 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000002826 coolant Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 229910017082 Fe-Si Inorganic materials 0.000 description 2
- 229910017133 Fe—Si Inorganic materials 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- -1 chromium ore Chemical class 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent 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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/068—Decarburising
- C21C7/0685—Decarburising of stainless steel
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 |
|---|---|---|---|
| JP21207582A JPS59104420A (ja) | 1982-12-04 | 1982-12-04 | 含クロム溶鋼の脱炭方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21207582A JPS59104420A (ja) | 1982-12-04 | 1982-12-04 | 含クロム溶鋼の脱炭方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59104420A JPS59104420A (ja) | 1984-06-16 |
| JPH0260723B2 true JPH0260723B2 (fr) | 1990-12-18 |
Family
ID=16616445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21207582A Granted JPS59104420A (ja) | 1982-12-04 | 1982-12-04 | 含クロム溶鋼の脱炭方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59104420A (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4652306A (en) * | 1984-10-12 | 1987-03-24 | Nippon Kokan Kabushiki Kaisha | Method of refining molten steel by arc process |
| JPS61136611A (ja) * | 1984-12-05 | 1986-06-24 | Nippon Steel Corp | 含クロム溶鋼の精錬法 |
-
1982
- 1982-12-04 JP JP21207582A patent/JPS59104420A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59104420A (ja) | 1984-06-16 |
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