GB1302040A - - Google Patents
Info
- Publication number
- GB1302040A GB1302040A GB6337369A GB6337369A GB1302040A GB 1302040 A GB1302040 A GB 1302040A GB 6337369 A GB6337369 A GB 6337369A GB 6337369 A GB6337369 A GB 6337369A GB 1302040 A GB1302040 A GB 1302040A
- Authority
- GB
- United Kingdom
- Prior art keywords
- increment
- time
- strand
- cell
- station
- 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
- B22D11/16—Controlling or regulating processes or operations
- B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
- B22D11/225—Controlling or regulating processes or operations for cooling cast stock or mould for secondary cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Basic Packing Technique (AREA)
- Control Of Heat Treatment Processes (AREA)
Abstract
1302040 Continuous casting USS ENGS & CONSULTANTS Inc 30 Dec 1969 [31 Dec 1968] 63373/69 Heading B3F [Also in Division C7] In a method of controlling heat transfer to or from an elongated object (such as a steel strip to be heated or a cast strand to be cooled) passing continuously from one point to a station where heat is transferred, for each of a number of increments of length, the time to travel from the point to the station is measured and the heat transferred at the station to or from each said increment is controlled according to the elapsed time for the increment to obtain a desired heat transfer rate. A continuous strand C is drawn for cooling, past spray stations 8, 10 by withdrawal rolls 4 and, as each increment 1-36 (say six inches) of length passes through the rolls, a generator 16 passes a signal to a digital computer 20 having 36 memory cells, cell 1 corresponding at any time to the increment leaving the mould 2 at that time and cell 36 to the increment leaving the rolls. If the strand speed is 72 inches/min., i.e. twelve increments/min., a time of 5 sees. for each increment is impressed temporarily and successively on each cell, i.e. as each relates to the position of the corresponding increment. If the speed is then halved, 10 sec. times are so impressed and follow the 5 sec. impressions in their progression down the computer memory section 24. When the leading end of the strand C, i.e. increment 1, reaches the middle of spray station 8, the computer calculates the time elapsed since it left the mould, i.e. the sum, viz. 75 sees., of the times in cells 1-15 at that moment. A valve 12 will then be controlled by the computer accordingly. Similarly, when the strand end reaches the middle of spray station 10, a valve 14 is controlled according to the time total, 135 sees., of the cells 1-23. The cooling rate may be modified by the surface temperature of the casting, detected by sensors 28, or by the time the metal resides in the mould 2 before leaving it. Alternatively, memory cell 1 may record the total elapsed time since the start of withdrawal from the mould 2, with the contents of each other cell, as before, being replaced by the contents of the next preceding cell at each signal from the generator 16. In another embodiment, with a single spray station (34), a preset counter (30) accumulates the generator pulses and passes on a signal when the number of pulses represents a desired strand increment, e.g. six inches.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78830468A | 1968-12-31 | 1968-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1302040A true GB1302040A (en) | 1973-01-04 |
Family
ID=25144076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6337369A Expired GB1302040A (en) | 1968-12-31 | 1969-12-30 |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS4825612B1 (en) |
AT (1) | AT303987B (en) |
BE (1) | BE743450A (en) |
BR (1) | BR6915672D0 (en) |
CA (1) | CA959625A (en) |
DE (1) | DE1964273B2 (en) |
ES (1) | ES374844A1 (en) |
FR (1) | FR2027433A1 (en) |
GB (1) | GB1302040A (en) |
NL (1) | NL166341C (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2477925A1 (en) * | 1980-03-13 | 1981-09-18 | Fives Cail Babcock | METHOD FOR CONTROLLING THE COOLING OF THE COLORED PRODUCT IN A CONTINUOUS CASTING PLANT |
US4580614A (en) * | 1983-01-31 | 1986-04-08 | Vereinigte Edelstahlwerke Aktiengesellschaft | Cooling apparatus for horizontal continuous casting of metals and alloys, particularly steels |
DE4134504C2 (en) * | 1991-10-18 | 1994-09-15 | Georgsmarienhuette Gmbh | Method and device for treating continuously cast and annealed steel billets |
EP3437756B1 (en) * | 2017-08-04 | 2021-12-22 | Primetals Technologies Austria GmbH | Continuous casting of a metallic strand |
EP3437759B1 (en) * | 2017-08-04 | 2022-10-12 | Primetals Technologies Austria GmbH | Continuous casting of a metallic strand |
EP3437757A1 (en) * | 2017-08-04 | 2019-02-06 | Primetals Technologies Austria GmbH | Continuous casting of a metallic strand |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT188452B (en) * | 1953-02-16 | 1957-01-25 | Boehler & Co Ag Geb | Process for cooling cast strands |
DE1262545B (en) * | 1962-01-08 | 1968-03-07 | Franz Wonisch | Thermostat for space heaters with evaporation burner firing |
US3364977A (en) * | 1964-03-11 | 1968-01-23 | Hitachi Ltd | Method for controlling cooling of ingots in continuous casting apparatus |
US3358743A (en) * | 1964-10-08 | 1967-12-19 | Bunker Ramo | Continuous casting system |
US3417810A (en) * | 1965-09-01 | 1968-12-24 | United States Steel Corp | System for progressive shutdown of cooling water sprays |
-
1969
- 1969-12-19 BE BE743450D patent/BE743450A/xx unknown
- 1969-12-22 DE DE19691964273 patent/DE1964273B2/en not_active Ceased
- 1969-12-23 FR FR6944567A patent/FR2027433A1/fr not_active Withdrawn
- 1969-12-23 ES ES374844A patent/ES374844A1/en not_active Expired
- 1969-12-24 NL NL6919420A patent/NL166341C/en not_active IP Right Cessation
- 1969-12-29 JP JP20547069A patent/JPS4825612B1/ja active Pending
- 1969-12-30 GB GB6337369A patent/GB1302040A/en not_active Expired
- 1969-12-30 AT AT1213169A patent/AT303987B/en active
- 1969-12-30 CA CA071,118A patent/CA959625A/en not_active Expired
- 1969-12-30 BR BR21567269A patent/BR6915672D0/en unknown
Also Published As
Publication number | Publication date |
---|---|
BR6915672D0 (en) | 1973-02-08 |
NL166341B (en) | 1981-02-16 |
AT303987B (en) | 1972-12-27 |
NL166341C (en) | 1981-07-15 |
DE1964273B2 (en) | 1981-05-14 |
CA959625A (en) | 1974-12-24 |
ES374844A1 (en) | 1972-01-16 |
NL6919420A (en) | 1970-07-02 |
BE743450A (en) | 1970-06-19 |
FR2027433A1 (en) | 1970-09-25 |
DE1964273A1 (en) | 1970-07-16 |
JPS4825612B1 (en) | 1973-07-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |