JPH0151525B2 - - Google Patents
Info
- Publication number
- JPH0151525B2 JPH0151525B2 JP56175611A JP17561181A JPH0151525B2 JP H0151525 B2 JPH0151525 B2 JP H0151525B2 JP 56175611 A JP56175611 A JP 56175611A JP 17561181 A JP17561181 A JP 17561181A JP H0151525 B2 JPH0151525 B2 JP H0151525B2
- Authority
- JP
- Japan
- Prior art keywords
- cao
- steel
- flux
- desulfurization
- molten 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
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 230000004907 flux Effects 0.000 claims description 24
- 229910018068 Li 2 O Inorganic materials 0.000 claims description 20
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 239000010935 stainless steel Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 8
- 239000011593 sulfur Substances 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 7
- 238000007670 refining Methods 0.000 claims description 2
- 238000006477 desulfuration reaction Methods 0.000 description 22
- 230000023556 desulfurization Effects 0.000 description 22
- 239000002893 slag Substances 0.000 description 12
- 230000003628 erosive effect Effects 0.000 description 6
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910004261 CaF 2 Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229910000882 Ca alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002436 steel type 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
- 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 |
|---|---|---|---|
| JP17561181A JPS5877518A (ja) | 1981-11-04 | 1981-11-04 | ＣａＯ−Ｌｉ↓２Ｏ系フラツクスによる極低硫ステンレス鋼の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17561181A JPS5877518A (ja) | 1981-11-04 | 1981-11-04 | ＣａＯ−Ｌｉ↓２Ｏ系フラツクスによる極低硫ステンレス鋼の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5877518A JPS5877518A (ja) | 1983-05-10 |
| JPH0151525B2 true JPH0151525B2 (zh) | 1989-11-06 |
Family
ID=15999112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17561181A Granted JPS5877518A (ja) | 1981-11-04 | 1981-11-04 | ＣａＯ−Ｌｉ↓２Ｏ系フラツクスによる極低硫ステンレス鋼の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5877518A (zh) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5284113A (en) * | 1975-12-30 | 1977-07-13 | Nisshin Steel Co Ltd | Dephosphorising of molten pig iron containing cr |
| JPS5328511A (en) * | 1976-08-31 | 1978-03-16 | Japan Steel Works Ltd | Slug for dephosphorizing and desulphurizing |
| JPS55119118A (en) * | 1979-03-09 | 1980-09-12 | Nisshin Steel Co Ltd | Denitrification method for iron alloy containing chromium |
-
1981
- 1981-11-04 JP JP17561181A patent/JPS5877518A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5284113A (en) * | 1975-12-30 | 1977-07-13 | Nisshin Steel Co Ltd | Dephosphorising of molten pig iron containing cr |
| JPS5328511A (en) * | 1976-08-31 | 1978-03-16 | Japan Steel Works Ltd | Slug for dephosphorizing and desulphurizing |
| JPS55119118A (en) * | 1979-03-09 | 1980-09-12 | Nisshin Steel Co Ltd | Denitrification method for iron alloy containing chromium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5877518A (ja) | 1983-05-10 |
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