GB1479745A - Method of continuously casting steel strands in particular slabs in a continuous casting plant - Google Patents
Method of continuously casting steel strands in particular slabs in a continuous casting plantInfo
- Publication number
- GB1479745A GB1479745A GB48308/74A GB4830874A GB1479745A GB 1479745 A GB1479745 A GB 1479745A GB 48308/74 A GB48308/74 A GB 48308/74A GB 4830874 A GB4830874 A GB 4830874A GB 1479745 A GB1479745 A GB 1479745A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slag
- strand
- softening temperature
- powder
- temperature
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
1479745 Continuous casting VEREINIGTE OSTERREICHISCHE EISEN-UND STAHLWERKE-ALPINE MONTAN AG 7 Nov 1974 [8 Nov 1973] 48308/74 Heading B3F To limit corrosion by liquid slag, of the surface of a steel strand, such as a slab, being withdrawn from a cooled oscillating mould wherein the steel is covered by a layer of slag-producing powder, the surface temperature of the strand in the secondary cooling zone (lying between 800 and 1250 C) and the softening temperature of the powder and slag (lying between 750 and 1150 C.) are related so that while passing through the cooling zone, for a given strand length, the strand surface temperature should be at the most 150 C. above the slag softening temperature although if the maximum limit is exceeded by any part of the surface of the length it is not exceeded for more than two minutes. The softening temperature of the slag, above which liquid phases occur, is determined by taking samples from the mould. If a suitable powder has not been chosen, fluxing agents are added to correct the softening temperature. In the graph, in which the slag softening temperature is plotted as abscissa against the strand surface temperature as ordinate, the line 4 represents surface temperatures (150 limit) above which slag influence for more than two minutes may cause cracks. The surface temperature of the strand is measured at a number of points, e.g. pyrometrically, and the secondary cooling water regulated accordingly. Compositions of steel, powder and slag are given.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT938873A AT330389B (en) | 1973-11-08 | 1973-11-08 | PROCESS FOR CONTINUOUS CASTING OF STEEL BARS, IN PARTICULAR SLABS, IN A CONTINUOUS CASTING PLANT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1479745A true GB1479745A (en) | 1977-07-13 |
Family
ID=3613723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB48308/74A Expired GB1479745A (en) | 1973-11-08 | 1974-11-07 | Method of continuously casting steel strands in particular slabs in a continuous casting plant |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5075525A (en) |
| AT (1) | AT330389B (en) |
| BE (1) | BE821823A (en) |
| BR (1) | BR7409351A (en) |
| CA (1) | CA1046731A (en) |
| CH (1) | CH574782A5 (en) |
| DE (1) | DE2449812A1 (en) |
| ES (1) | ES431626A1 (en) |
| FR (1) | FR2250595B1 (en) |
| GB (1) | GB1479745A (en) |
| IT (1) | IT1021764B (en) |
| SE (1) | SE396707B (en) |
| SU (1) | SU534175A3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393456A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | Q345B thick plate casting blank structure control method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5680367A (en) | 1979-12-06 | 1981-07-01 | Nippon Steel Corp | Restraining method of cracking in b-containing steel continuous casting ingot |
| AT399463B (en) * | 1987-03-03 | 1995-05-26 | Inteco Int Techn Beratung | METHOD FOR CONTINUOUSLY CASTING ELECTRIC STEEL AND ALLOYS |
| CN113857448B (en) * | 2021-11-29 | 2022-02-22 | 东北大学 | Low-alkalinity coating-free protective slag for continuous casting of hot forming steel |
-
1973
- 1973-11-08 AT AT938873A patent/AT330389B/en not_active IP Right Cessation
-
1974
- 1974-10-03 SE SE7412443A patent/SE396707B/en unknown
- 1974-10-09 JP JP49115697A patent/JPS5075525A/ja active Pending
- 1974-10-11 IT IT53475/74A patent/IT1021764B/en active
- 1974-10-15 CH CH1383174A patent/CH574782A5/xx not_active IP Right Cessation
- 1974-10-17 CA CA211,591A patent/CA1046731A/en not_active Expired
- 1974-10-19 DE DE19742449812 patent/DE2449812A1/en not_active Withdrawn
- 1974-10-29 FR FR7436102A patent/FR2250595B1/fr not_active Expired
- 1974-11-04 BE BE150185A patent/BE821823A/en unknown
- 1974-11-04 ES ES431626A patent/ES431626A1/en not_active Expired
- 1974-11-06 SU SU2078666A patent/SU534175A3/en active
- 1974-11-07 BR BR9351/74A patent/BR7409351A/en unknown
- 1974-11-07 GB GB48308/74A patent/GB1479745A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393456A (en) * | 2017-02-05 | 2018-08-14 | 鞍钢股份有限公司 | Q345B thick plate casting blank structure control method |
Also Published As
| Publication number | Publication date |
|---|---|
| BR7409351A (en) | 1976-05-18 |
| AT330389B (en) | 1976-06-25 |
| ATA938873A (en) | 1975-09-15 |
| CA1046731A (en) | 1979-01-23 |
| FR2250595A1 (en) | 1975-06-06 |
| SE396707B (en) | 1977-10-03 |
| CH574782A5 (en) | 1976-04-30 |
| SU534175A3 (en) | 1976-10-30 |
| FR2250595B1 (en) | 1980-08-08 |
| SE7412443L (en) | 1975-05-09 |
| ES431626A1 (en) | 1976-11-01 |
| DE2449812A1 (en) | 1975-05-15 |
| IT1021764B (en) | 1978-02-20 |
| BE821823A (en) | 1975-03-03 |
| JPS5075525A (en) | 1975-06-20 |
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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 |