GB949538A - Improvements in or relating to a method and a machine for continuous casting - Google Patents
Improvements in or relating to a method and a machine for continuous castingInfo
- Publication number
- GB949538A GB949538A GB40890/62A GB4089062A GB949538A GB 949538 A GB949538 A GB 949538A GB 40890/62 A GB40890/62 A GB 40890/62A GB 4089062 A GB4089062 A GB 4089062A GB 949538 A GB949538 A GB 949538A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casting
- skin thickness
- measured
- predetermined
- waves
- 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
- 238000009749 continuous casting Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000005266 casting Methods 0.000 abstract 9
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000012809 cooling fluid Substances 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 abstract 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 abstract 1
- 230000002285 radioactive effect Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
-
- 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
-
- 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
- B22D11/20—Controlling or regulating processes or operations for removing cast stock
- B22D11/207—Controlling or regulating processes or operations for removing cast stock responsive to thickness of solidified shell
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Automation & Control Theory (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Continuous Casting (AREA)
Abstract
949,538. Continuous casting-machines. CONCAST A.G. Oct: 30, 1962 [Nov. 4, 1961], No. 40890/62. Heading B3F. [Also in Division G3] A method of continuous casting comprises the steps of ascertaining during the casting operation and in a range in which the casting shall have a predetermined skin thickness in accordance with the requirements of the material at least periodically the skin thickness and of using the measured values for controlling the machine in the sense of these requirements. In the preferred embodiments the measured skin thickness is compared with the predetermined nominal skin thickness and the machine controlled by means of the deviations appearing, either manually or automatically, for example the output signals may control a Ward-Leonard set driving the casting withdrawal rolls, and a cooling fluid valve for the secondary cooling of the casting. In one embodiment, Figs. 2, 2a, an ultrasonic transmitter 21 in a water-cooled roller 23 emits waves which are reflected towards a receiver 22 at points of transition a-e between different states of the casting, so there is obtained a sequence of pulses, Fig. 2a, repeated at regular time intervals t1. The pulse sequence is evaluated to form signals corresponding to the skin thickness. A signal representing the nominal skin thickness is introduced so that an output control signal appears only when the actual skin thickness deviates from the predetermined value. In a second embodiment, Fig. 3, the ultrasonic waves penetrate the casting and are received by a receiver 51 opposite the transmitter 50. Cooling water jets 54, 55 are used as a coupling means for transmitting the waves to the casting and as electrodes to apply a voltage to the water vapour film so that the transmission of the waves is not hindered thereby. In other embodiments radio-active rays or an electrical current are passed transversely through the casting. The skin thickness is measured continuously but to avoid instability the control signals are delivered at timed intervals. Alternatively, there may be pulse counters which observe deviations at time intervals and only after a predetermined excess of pulses departing in one direction from the nominal value is a control order for adjusting released. An additional condition, such as the surface temperature of the casting, may also be measured and taken into consideration in the functions of adjusting, the said temperature being measured as by a platinum-rhodium thermo-element or a ray-pyrometer and producing a signal when it deviates from a predetermined nominal temperature. The temperature may be measured at several points to exert separately or by means of an average value its influence on the control.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1279461A CH389173A (en) | 1961-11-04 | 1961-11-04 | Method and device for continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB949538A true GB949538A (en) | 1964-02-12 |
Family
ID=4386462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB40890/62A Expired GB949538A (en) | 1961-11-04 | 1962-10-30 | Improvements in or relating to a method and a machine for continuous casting |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3270376A (en) |
| BE (1) | BE624437A (en) |
| CH (1) | CH389173A (en) |
| DE (1) | DE1262518B (en) |
| GB (1) | GB949538A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377920A (en) * | 2017-06-28 | 2017-11-24 | 秦皇岛首秦金属材料有限公司 | A kind of heavy slab tail base secondary cooling water pulse control method |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3478808A (en) * | 1964-10-08 | 1969-11-18 | Bunker Ramo | Method of continuously casting steel |
| US3344841A (en) * | 1965-06-18 | 1967-10-03 | Koppers Co Inc | Control apparatus for a continuous cast billet |
| DE1508919B1 (en) * | 1966-03-05 | 1971-02-04 | Olsson Ag Erik | Arrangement of a thermosensitive element in a cooled continuous casting mold |
| US3421569A (en) * | 1966-03-11 | 1969-01-14 | Kennecott Copper Corp | Continuous casting |
| AT284043B (en) * | 1966-12-06 | 1970-08-25 | Boehler & Co Ag Geb | Process for regulating working conditions in the manufacture of rolled products from continuously cast products made from refractory metals, in particular from unalloyed and alloyed steels |
| CH462910A (en) * | 1967-02-13 | 1968-09-30 | Gen Cable Corp | Method and device for applying layers of plastic to an electrical conductor |
| US3543567A (en) * | 1967-11-20 | 1970-12-01 | Concast Ag | Method of intensifying reflection of ultrasonic waves from boundary between solid and liquid metal |
| CH495800A (en) * | 1969-05-20 | 1970-09-15 | Concast Ag | Extraction and straightening device for continuous casting systems with curved strand guidance |
| JPS492659B1 (en) * | 1970-12-23 | 1974-01-22 | ||
| BE788995A (en) * | 1971-09-20 | 1973-01-15 | Voest Ag | DEVICE SERVING TO FACILITATE THE FLOW OF CASTING IN CONTINUOUS CASTING PLANTS |
| FR2648063B1 (en) * | 1989-06-12 | 1994-03-18 | Irsid | METHOD AND DEVICE FOR VIBRATION OF A CONTINUOUS CASTING LINGOTIERE OF METALS |
| US5509460A (en) * | 1994-08-25 | 1996-04-23 | Massachusetts Institute Of Technology | Solid/liquid interface detection in continuous casting processes by γ- |
| US5673746A (en) * | 1994-08-25 | 1997-10-07 | Massachusetts Institute Of Technology | Solid/liquid interface detection in casting processes by gamma-ray attenuation |
| ES2328206B1 (en) * | 2007-11-07 | 2010-05-24 | Zunibal, S.L | IRON TRANSLATOR. |
| CN101965233B (en) | 2008-03-05 | 2013-02-20 | 南线公司 | Niobium as a protective barrier in molten metals |
| US8652397B2 (en) | 2010-04-09 | 2014-02-18 | Southwire Company | Ultrasonic device with integrated gas delivery system |
| US8574336B2 (en) | 2010-04-09 | 2013-11-05 | Southwire Company | Ultrasonic degassing of molten metals |
| EP3071718B1 (en) | 2013-11-18 | 2019-06-05 | Southwire Company, LLC | Ultrasonic probes with gas outlets for degassing of molten metals |
| HUE048957T2 (en) | 2015-02-09 | 2020-09-28 | Hans Tech Llc | Ultrasonic grain refining |
| US10233515B1 (en) | 2015-08-14 | 2019-03-19 | Southwire Company, Llc | Metal treatment station for use with ultrasonic degassing system |
| ES2833474T3 (en) | 2015-09-10 | 2021-06-15 | Southwire Co Llc | Ultrasonic Grain Degassing and Refining Device for Metal Casting |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2246907A (en) * | 1940-04-12 | 1941-06-24 | William R Webster | Continuous molding machine |
| US2641034A (en) * | 1949-01-29 | 1953-06-09 | Babcock & Wilcox Co | Method of and apparatus for indicating and/or controlling the level of liquid within an opaque container |
| BE502192A (en) * | 1950-03-28 | |||
| US2748290A (en) * | 1951-05-31 | 1956-05-29 | Socony Mobil Oil Co Inc | Measurement of wall thickness |
-
0
- BE BE624437D patent/BE624437A/xx unknown
-
1961
- 1961-11-04 CH CH1279461A patent/CH389173A/en unknown
-
1962
- 1962-10-26 DE DEC28276A patent/DE1262518B/en active Pending
- 1962-10-29 US US233723A patent/US3270376A/en not_active Expired - Lifetime
- 1962-10-30 GB GB40890/62A patent/GB949538A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377920A (en) * | 2017-06-28 | 2017-11-24 | 秦皇岛首秦金属材料有限公司 | A kind of heavy slab tail base secondary cooling water pulse control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CH389173A (en) | 1965-03-15 |
| BE624437A (en) | |
| US3270376A (en) | 1966-09-06 |
| DE1262518B (en) | 1968-03-07 |
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