DE2333937C2 - Verfahren zur Herstellung hochchromhaltiger Stähle mit niedrigstem Kohlenstoffgehalt - Google Patents
Verfahren zur Herstellung hochchromhaltiger Stähle mit niedrigstem KohlenstoffgehaltInfo
- Publication number
- DE2333937C2 DE2333937C2 DE2333937A DE2333937A DE2333937C2 DE 2333937 C2 DE2333937 C2 DE 2333937C2 DE 2333937 A DE2333937 A DE 2333937A DE 2333937 A DE2333937 A DE 2333937A DE 2333937 C2 DE2333937 C2 DE 2333937C2
- Authority
- DE
- Germany
- Prior art keywords
- bath
- chromium
- oxygen
- substances
- circulation
- 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
- 238000000034 method Methods 0.000 title claims description 26
- 229910052804 chromium Inorganic materials 0.000 title claims description 17
- 239000011651 chromium Substances 0.000 title claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 15
- 229910052799 carbon Inorganic materials 0.000 title claims description 15
- 229910000831 Steel Inorganic materials 0.000 title claims description 11
- 239000010959 steel Substances 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000005261 decarburization Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 3
- 239000007800 oxidant agent Substances 0.000 claims 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 1
- 229910000851 Alloy steel Inorganic materials 0.000 claims 1
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 claims 1
- 238000005275 alloying Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 claims 1
- 230000006698 induction Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000010985 leather Substances 0.000 claims 1
- 230000010355 oscillation Effects 0.000 claims 1
- 238000011084 recovery Methods 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 8
- 235000019738 Limestone Nutrition 0.000 description 5
- 239000006028 limestone Substances 0.000 description 5
- 235000012255 calcium oxide Nutrition 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical compound [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000000926 separation method Methods 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
-
- 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)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2333937A DE2333937C2 (de) | 1973-07-04 | 1973-07-04 | Verfahren zur Herstellung hochchromhaltiger Stähle mit niedrigstem Kohlenstoffgehalt |
| GB2724674A GB1432290A (en) | 1973-07-04 | 1974-06-19 | Process for the production of steel |
| US482958A US3907548A (en) | 1973-07-04 | 1974-06-25 | Process for the production of steels having high chromium content and lowest possible carbon content |
| NL7408838A NL7408838A (nl) | 1973-07-04 | 1974-07-01 | Werkwijze voor de bereiding van staal met hoog chroomgehalte en zo laag mogelijk koolstofge- |
| IT24698/74A IT1015605B (it) | 1973-07-04 | 1974-07-02 | Procedimento per produrre acciai con elevato contenuto di cromo e con bassissimo contenuto di carbo nio |
| FR7423003A FR2236007B3 (enrdf_load_stackoverflow) | 1973-07-04 | 1974-07-02 | |
| AT544874A AT340975B (de) | 1973-07-04 | 1974-07-02 | Verfahren zur herstellung hochchromhaltiger stahle mit niedrigstem kohlenstoffgehalt |
| LU70449A LU70449A1 (enrdf_load_stackoverflow) | 1973-07-04 | 1974-07-02 | |
| DK356774A DK356774A (enrdf_load_stackoverflow) | 1973-07-04 | 1974-07-03 | |
| SE7408783A SE7408783L (enrdf_load_stackoverflow) | 1973-07-04 | 1974-07-03 | |
| CA203,954A CA1015169A (en) | 1973-07-04 | 1974-07-03 | Process for the production of steels having high chromium content and minimum carbon content |
| BE146222A BE817256A (fr) | 1973-07-04 | 1974-07-04 | Procede pour fabriquer des aciers a haute teneur en chrome et atres faible teneur en carbone |
| JP49075929A JPS5038617A (enrdf_load_stackoverflow) | 1973-07-04 | 1974-07-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2333937A DE2333937C2 (de) | 1973-07-04 | 1973-07-04 | Verfahren zur Herstellung hochchromhaltiger Stähle mit niedrigstem Kohlenstoffgehalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2333937B1 DE2333937B1 (de) | 1974-12-05 |
| DE2333937C2 true DE2333937C2 (de) | 1975-07-17 |
Family
ID=5885874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2333937A Expired DE2333937C2 (de) | 1973-07-04 | 1973-07-04 | Verfahren zur Herstellung hochchromhaltiger Stähle mit niedrigstem Kohlenstoffgehalt |
Country Status (13)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5394214A (en) * | 1977-01-31 | 1978-08-18 | Kawasaki Steel Co | Denitriding method of high chrome molten steel with small chrome loss |
| LU84472A1 (fr) * | 1982-11-17 | 1984-06-13 | Arbed | Procede et installation pour le traitement de l'acier en poche |
| US4481032A (en) * | 1983-08-12 | 1984-11-06 | Pfizer Inc. | Process for adding calcium to a bath of molten ferrous material |
| JPS60121211A (ja) * | 1983-12-02 | 1985-06-28 | Nippon Steel Corp | 含クロム溶鋼の還元脱硫法 |
| JPS62127417A (ja) * | 1985-11-26 | 1987-06-09 | Kawasaki Steel Corp | 溶融金属の精錬方法 |
| TWI452270B (zh) * | 2011-10-21 | 2014-09-11 | Univ Nat Central | 量測裝置及其量測方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3003865A (en) * | 1959-09-10 | 1961-10-10 | Cameron Iron Works Inc | Decarburizing process for alloy steels containing chromium |
| AT247888B (de) * | 1961-10-16 | 1966-06-27 | Oesterr Alpine Montan | Verfahren zur Herstellung hochlegierter Stähle und Anwendung desselben zur Herstellung von ultraweichen Chrom-Nickel-Stählen |
| US3467167A (en) * | 1966-09-19 | 1969-09-16 | Kaiser Ind Corp | Process for continuously casting oxidizable metals |
| DE1916945C3 (de) * | 1969-04-02 | 1980-04-17 | Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg | Anwendung des Mantelgas-Verfahrens zum Frischen von Roheisen zu Stahl |
| US3725041A (en) * | 1970-09-25 | 1973-04-03 | Allegheny Ludlum Ind Inc | Deoxidizing metal |
-
1973
- 1973-07-04 DE DE2333937A patent/DE2333937C2/de not_active Expired
-
1974
- 1974-06-19 GB GB2724674A patent/GB1432290A/en not_active Expired
- 1974-06-25 US US482958A patent/US3907548A/en not_active Expired - Lifetime
- 1974-07-01 NL NL7408838A patent/NL7408838A/xx unknown
- 1974-07-02 AT AT544874A patent/AT340975B/de active
- 1974-07-02 IT IT24698/74A patent/IT1015605B/it active
- 1974-07-02 LU LU70449A patent/LU70449A1/xx unknown
- 1974-07-02 FR FR7423003A patent/FR2236007B3/fr not_active Expired
- 1974-07-03 CA CA203,954A patent/CA1015169A/en not_active Expired
- 1974-07-03 SE SE7408783A patent/SE7408783L/xx unknown
- 1974-07-03 DK DK356774A patent/DK356774A/da unknown
- 1974-07-04 BE BE146222A patent/BE817256A/xx unknown
- 1974-07-04 JP JP49075929A patent/JPS5038617A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT1015605B (it) | 1977-05-20 |
| FR2236007A1 (enrdf_load_stackoverflow) | 1975-01-31 |
| LU70449A1 (enrdf_load_stackoverflow) | 1974-11-28 |
| FR2236007B3 (enrdf_load_stackoverflow) | 1977-05-06 |
| ATA544874A (de) | 1977-05-15 |
| CA1015169A (en) | 1977-08-09 |
| US3907548A (en) | 1975-09-23 |
| JPS5038617A (enrdf_load_stackoverflow) | 1975-04-10 |
| DE2333937B1 (de) | 1974-12-05 |
| NL7408838A (nl) | 1975-01-07 |
| GB1432290A (en) | 1976-04-14 |
| SE7408783L (enrdf_load_stackoverflow) | 1975-01-07 |
| AT340975B (de) | 1978-01-10 |
| BE817256A (fr) | 1974-11-04 |
| DK356774A (enrdf_load_stackoverflow) | 1975-03-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 | ||
| EHJ | Ceased/non-payment of the annual fee |