JPH0135887B2 - - Google Patents
Info
- Publication number
- JPH0135887B2 JPH0135887B2 JP58050122A JP5012283A JPH0135887B2 JP H0135887 B2 JPH0135887 B2 JP H0135887B2 JP 58050122 A JP58050122 A JP 58050122A JP 5012283 A JP5012283 A JP 5012283A JP H0135887 B2 JPH0135887 B2 JP H0135887B2
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- molten steel
- decarburization
- blowing
- refining
- 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 68
- 239000010959 steel Substances 0.000 claims description 68
- 238000007664 blowing Methods 0.000 claims description 53
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 49
- 239000001301 oxygen Substances 0.000 claims description 49
- 229910052760 oxygen Inorganic materials 0.000 claims description 49
- 238000007670 refining Methods 0.000 claims description 39
- 239000007789 gas Substances 0.000 claims description 31
- 239000011651 chromium Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 27
- 239000011261 inert gas Substances 0.000 claims description 21
- 229910052804 chromium Inorganic materials 0.000 claims description 16
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 238000005261 decarburization Methods 0.000 description 42
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 30
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 16
- 230000007423 decrease Effects 0.000 description 16
- 229910052757 nitrogen Inorganic materials 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 14
- 229910052786 argon Inorganic materials 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 3
- 229910000423 chromium oxide Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical compound [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/005—Manufacture of stainless steel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (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 |
|---|---|---|---|
| JP5012283A JPS59177314A (ja) | 1983-03-24 | 1983-03-24 | 含クロム溶鋼の精錬方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5012283A JPS59177314A (ja) | 1983-03-24 | 1983-03-24 | 含クロム溶鋼の精錬方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59177314A JPS59177314A (ja) | 1984-10-08 |
| JPH0135887B2 true JPH0135887B2 (de) | 1989-07-27 |
Family
ID=12850315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5012283A Granted JPS59177314A (ja) | 1983-03-24 | 1983-03-24 | 含クロム溶鋼の精錬方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59177314A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0690137A3 (de) * | 1994-06-06 | 1997-04-23 | Kawasaki Steel Co | Verfahren zum Entkohlen chromhaltiger Stahlschmelzen |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57207107A (en) * | 1981-06-12 | 1982-12-18 | Sumitomo Metal Ind Ltd | Preventing method for nitrogen absorption of molten steel |
-
1983
- 1983-03-24 JP JP5012283A patent/JPS59177314A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57207107A (en) * | 1981-06-12 | 1982-12-18 | Sumitomo Metal Ind Ltd | Preventing method for nitrogen absorption of molten steel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0690137A3 (de) * | 1994-06-06 | 1997-04-23 | Kawasaki Steel Co | Verfahren zum Entkohlen chromhaltiger Stahlschmelzen |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59177314A (ja) | 1984-10-08 |
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