GB1263468A - Improvements relating to control arrangements for electro-slag refining apparatus - Google Patents
Improvements relating to control arrangements for electro-slag refining apparatusInfo
- Publication number
- GB1263468A GB1263468A GB2095/69A GB209569A GB1263468A GB 1263468 A GB1263468 A GB 1263468A GB 2095/69 A GB2095/69 A GB 2095/69A GB 209569 A GB209569 A GB 209569A GB 1263468 A GB1263468 A GB 1263468A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ingot
- growth
- electrode
- impedance
- measured
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/144—Power supplies specially adapted for heating by electric discharge; Automatic control of power, e.g. by positioning of electrodes
- H05B7/148—Automatic control of power
- H05B7/152—Automatic control of power by electromechanical means for positioning of electrodes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1,263,468. Zone melting. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 12 May, 1969 [14 May, 1968; 17 Sept., 1968; 14 Jan., 1969], Nos. 22855/68, 44149/68 and 2095/69. Heading B1S. [Also in Division G3] A control arrangement for electro-slag refining apparatus comprises means for varying the voltage applied between the electrode 3 and the ingot 5 being formed, in response to the difference between the actual growth of the ingot and the growth which will give a shallow dish shaped pool of molten metal at the top of the ingot. In addition, the speed of an electric motor 9 which lowers the electrode into the slag pool 7 may be controlled by unspecified means 25 so as to keep the impedance, and hence the length of the gap constant. The impedance is determined at 23 from a measurement at 19 of the voltage between the electrode and ingot, and the current, measured at 21. The growth of the ingot may be measured by load cells, or the height of the growing ingot may be detected by devices 43 comprising thermocouples, capacitive or inductive sensing devices, X-ray apparatus, devices sensitive to radio active material in the ingot, or devices using sonic or ultra-sonic oscillations, but as shown the growth of the ingot is deduced from the loss in weight of the electrode 3, measured by load cells 27 whose output is compared with a reference at 31 to control the applied voltage at 17. In Fig. 2 (not shown) the electrode is lowered at a constant speed, which corresponds to the desired rate of growth, and the impedance of the gap, measured as in Fig. 1, is a measure of the difference between the desired growth and the actual growth and so this measurement is used to control the applied voltage. In Fig. 3 (not shown) the lowering of the electrode is controlled by the impedance measurement as in Fig. 1, but the growth is determined by measuring the rate of feed of the electrode, comparison of this with a reference being used to control the applied voltage. The comparison may be made electrically or by a differential gear having input shafts rotating at the actual and desired feed rates respectively. It is mentioned that, alternatively, the ingot could be moved towards the electrode, and the growth rate may be varied automatically or manually, particularly at the beginning and end of operations.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691924364 DE1924364A1 (en) | 1968-05-14 | 1969-05-13 | Control device for a device for the electrorefining of metals |
SE06889/69A SE365820B (en) | 1968-05-14 | 1969-05-14 | |
FR6915744A FR2008517A1 (en) | 1968-05-14 | 1969-05-14 | Control of electrode movement in electroslag - refining |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2285568 | 1968-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1263468A true GB1263468A (en) | 1972-02-09 |
Family
ID=10186129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2095/69A Expired GB1263468A (en) | 1968-05-14 | 1968-05-14 | Improvements relating to control arrangements for electro-slag refining apparatus |
Country Status (2)
Country | Link |
---|---|
US (1) | US3622678A (en) |
GB (1) | GB1263468A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0042689A1 (en) * | 1980-06-20 | 1981-12-30 | Consarc Corporation | Method and apparatus for controlling electrode drive speed in a consumable electrode furnace |
RU2468102C2 (en) * | 2010-07-29 | 2012-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Омский государственный технический университет" | System for control of electric holder with electrode of electroslag melting setting, welding and overlaying |
RU2630401C1 (en) * | 2016-12-12 | 2017-09-07 | Евгений Александрович Изжеуров | Device for manufacturing porous material |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2103216C3 (en) * | 1971-01-25 | 1978-03-16 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Method for determining the immersion depth of electrodes in a reduction furnace |
JPS5118882B1 (en) * | 1971-02-02 | 1976-06-14 | ||
US3944714A (en) * | 1973-04-23 | 1976-03-16 | Jury Pavlovich Shtanko | Electroslag remelting plant |
US3890457A (en) * | 1974-02-21 | 1975-06-17 | Pavel Ioelievich Fain | Device for program controlling metal remelting processes |
US3872231A (en) * | 1974-05-23 | 1975-03-18 | Toroid Corp | System for determining electrode length |
DE2426356B2 (en) * | 1974-05-31 | 1976-09-02 | Aeg-Elotherm Gmbh, 5630 Remscheid | EQUIPMENT ON ELECTRIC INDUCTION FURNACE FOR DETERMINING THE FILLING LEVEL OF THE LIQUID MELT |
SU520785A1 (en) * | 1974-11-28 | 1977-10-25 | Ордена Ленина И Ордена Трудового Красного Знамени Институт Электросварки Им. Е.О.Патона | Electroslag remelting furnace |
US4002816A (en) * | 1975-08-04 | 1977-01-11 | Anatoly Dmitrievich Zhupakhin | Device for measuring mass of consumable electrodes being remelted in electric furnaces |
US4091229A (en) * | 1977-03-01 | 1978-05-23 | Wooding Corporation | Slag and alloy feeding based on electrode weight |
DE3528867A1 (en) * | 1985-08-12 | 1987-02-19 | Leybold Heraeus Gmbh & Co Kg | DEVICE FOR COMPENSATING THE INFLUENCE OF THE WEIGHT OF A POWER SUPPLY PIPE ON A WEIGHT MEASURING DEVICE |
DE3919920A1 (en) * | 1989-06-19 | 1991-01-03 | Leybold Ag | DEVICE FOR MEASURING THE TEMPERATURE OF A METAL OR METAL ALLOY MELT |
SE505282C2 (en) * | 1995-04-18 | 1997-07-28 | Aga Ab | Method and apparatus for determining the height position of a vertically movable electrode in an arc furnace |
DE102012209733A1 (en) | 2012-06-11 | 2013-12-12 | Sgl Carbon Se | Method and device for determining the consumption of electrode material during operation of an electric furnace |
RU2645164C2 (en) * | 2015-03-10 | 2018-02-16 | Игорь Михайлович Бершицкий | Esr installation |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2518580A (en) * | 1948-03-24 | 1950-08-15 | Lev A Trofimov | Arc furnace control |
US2890368A (en) * | 1957-10-24 | 1959-06-09 | Mallory Sharon Metals Corp | Controlled consumable electrode arc melting furnace construction and operation |
US3272905A (en) * | 1963-06-24 | 1966-09-13 | Consarc Corp | Continuous weighing of a consumable electrode |
US3431344A (en) * | 1965-11-15 | 1969-03-04 | Westinghouse Electric Corp | Control system providing supply circuit impedance balance control for electric arc furnaces |
-
1968
- 1968-05-14 GB GB2095/69A patent/GB1263468A/en not_active Expired
-
1969
- 1969-05-14 US US824608A patent/US3622678A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0042689A1 (en) * | 1980-06-20 | 1981-12-30 | Consarc Corporation | Method and apparatus for controlling electrode drive speed in a consumable electrode furnace |
RU2468102C2 (en) * | 2010-07-29 | 2012-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Омский государственный технический университет" | System for control of electric holder with electrode of electroslag melting setting, welding and overlaying |
RU2630401C1 (en) * | 2016-12-12 | 2017-09-07 | Евгений Александрович Изжеуров | Device for manufacturing porous material |
Also Published As
Publication number | Publication date |
---|---|
US3622678A (en) | 1971-11-23 |
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