GB1397449A - Method of refining iron metls containing chromium - Google Patents
Method of refining iron metls containing chromiumInfo
- Publication number
- GB1397449A GB1397449A GB2790872A GB2790872A GB1397449A GB 1397449 A GB1397449 A GB 1397449A GB 2790872 A GB2790872 A GB 2790872A GB 2790872 A GB2790872 A GB 2790872A GB 1397449 A GB1397449 A GB 1397449A
- Authority
- GB
- United Kingdom
- Prior art keywords
- melt
- ladle
- metls
- containing chromium
- vibratory
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 4
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000007670 refining Methods 0.000 title abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title 1
- 229910052804 chromium Inorganic materials 0.000 title 1
- 239000011651 chromium Substances 0.000 title 1
- 239000000155 melt Substances 0.000 abstract 6
- 238000007664 blowing Methods 0.000 abstract 2
- 229910017060 Fe Cr Inorganic materials 0.000 abstract 1
- 229910002544 Fe-Cr Inorganic materials 0.000 abstract 1
- 229910000805 Pig iron Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 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)
Abstract
1397449 Refining Fe-Cr melts STORA KOPPARBERGS BERGSLAGS AB 14 June 1972 [16 June 1971] 27908/72 Heading C7D A process for removing C from Cr-containing iron melts comprises subjecting a substantially slag-free melt to vigorous stirring whilst blowing O 2 on to the surface. The melt may be stirred by means of a vibratory ladle and/or by passing Ar in through the bottom of the melt. In an example, Si is initially removed as slag from pig iron in a vibratory ladle, after which O 2 is blown on to the surface and Ar in through the bottom of the melt. This reduces the C content from 4% to 1À6%. The blowing is continued with the ladle stationary and a C content of 0À03% was achieved. The melt may be of high Cr-steel or stainless steel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE07840/71A SE365546B (en) | 1971-06-16 | 1971-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1397449A true GB1397449A (en) | 1975-06-11 |
Family
ID=20272457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2790872A Expired GB1397449A (en) | 1971-06-16 | 1972-06-14 | Method of refining iron metls containing chromium |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3860418A (en) |
| GB (1) | GB1397449A (en) |
| SE (1) | SE365546B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2340375A2 (en) * | 1976-02-04 | 1977-09-02 | Creusot Loire | PROCESS FOR THE PREPARATION OF CHROME STEELS |
| JPS5921367B2 (en) * | 1979-05-29 | 1984-05-19 | 大同特殊鋼株式会社 | Refining method for chromium-containing steel |
| US4529442A (en) * | 1984-04-26 | 1985-07-16 | Allegheny Ludlum Steel Corporation | Method for producing steel in a top oxygen blown vessel |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2820707A (en) * | 1954-06-07 | 1958-01-21 | Henry J Kaiser Company | Converter |
| FR1296596A (en) * | 1961-03-24 | 1962-06-22 | Lorraine Laminage | Improvements made to the refining of cast iron |
| US3323906A (en) * | 1964-08-12 | 1967-06-06 | Nat Steel Corp | Method of steelmaking |
| US3248211A (en) * | 1964-09-18 | 1966-04-26 | South African Iron & Steel | Refining of iron |
| US3647418A (en) * | 1964-12-11 | 1972-03-07 | Lucas S Moussoulos | HIGH-RECOVERY PRODUCTION OF RICH FeNi ALLOYS IN A CONVERTER |
| US3567430A (en) * | 1968-06-11 | 1971-03-02 | Allegheny Ludlum Steel | Method of removing lead from molten austenitic stainless steel |
-
1971
- 1971-06-16 SE SE07840/71A patent/SE365546B/xx unknown
-
1972
- 1972-06-14 US US262718A patent/US3860418A/en not_active Expired - Lifetime
- 1972-06-14 GB GB2790872A patent/GB1397449A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE365546B (en) | 1974-03-25 |
| US3860418A (en) | 1975-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |