GB1308607A - Treatment of molten steel - Google Patents
Treatment of molten steelInfo
- Publication number
- GB1308607A GB1308607A GB1965669A GB1308607DA GB1308607A GB 1308607 A GB1308607 A GB 1308607A GB 1965669 A GB1965669 A GB 1965669A GB 1308607D A GB1308607D A GB 1308607DA GB 1308607 A GB1308607 A GB 1308607A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steel
- april
- treatment
- molten steel
- teeming
- 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
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
- C21C7/10—Handling in a vacuum
-
- 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
-
- 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
- C21C7/0087—Treatment of slags covering the steel bath, e.g. for separating slag from the molten metal
-
- 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
- C21C7/0006—Adding metallic additives
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
1308607 Steel of improved hardenability GKN GROUP SERVICES Ltd 15 April 1970 [17 April 1969] 19656/69 Headings C7A and C7D Prior to teeming the steel is heated so that the whole of the melt is above 1675‹C, and is maintained above that temperature for about 2 to 30 minutes, after which aluminium and/or titanium are added prior to or during teeming; the additions may be such as to produce final contents of 0À03-0À1% Al and 0À03% Ti. A preferred steel composition contains C 0À36 - 0À45 Mn 1À5 - 2 Si 0À25 - 0À5 Cr 0À2 - 0À3 Ni 0À15 - 0À3 Mo 0À1 - 0À15 S 0À01 - 0À05 P 0À01 - 0À05 Cu 0À0 - 0À25 Sn 0À0 - 0À03 and is so balanced that the parameter -1À37587 + (1À02692 Î Si%) + (0À49025 x Cu%) + (0À50216 Î Mn%) + (2À38480 x C%) + (0À35889 x Cr%) + (1À07513 x Mo%) - (0À05591 Î BS gram size number) - (2À46496 Î S%) + (0À48334 Î Ni%) + (3À3767 x P%) - (0À59522 Î Sn%) is not less than 0À8.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1965669 | 1969-04-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1308607A true GB1308607A (en) | 1973-02-21 |
Family
ID=10132986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1965669A Expired GB1308607A (en) | 1969-04-17 | 1969-04-17 | Treatment of molten steel |
Country Status (4)
Country | Link |
---|---|
US (1) | US3690868A (en) |
JP (1) | JPS5428369B1 (en) |
DE (1) | DE2018561B2 (en) |
GB (1) | GB1308607A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5094923A (en) * | 1990-04-24 | 1992-03-10 | Kennametal Inc. | Air hardening steel |
US9114238B2 (en) | 2007-04-16 | 2015-08-25 | Corium International, Inc. | Solvent-cast microprotrusion arrays containing active ingredient |
-
1969
- 1969-04-17 GB GB1965669A patent/GB1308607A/en not_active Expired
-
1970
- 1970-04-16 US US28997A patent/US3690868A/en not_active Expired - Lifetime
- 1970-04-17 JP JP3263870A patent/JPS5428369B1/ja active Pending
- 1970-04-17 DE DE2018561A patent/DE2018561B2/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2018561A1 (en) | 1971-10-14 |
JPS5428369B1 (en) | 1979-09-17 |
DE2018561B2 (en) | 1975-11-13 |
US3690868A (en) | 1972-09-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |