GB1326091A - Electroslag refining of metals - Google Patents
Electroslag refining of metalsInfo
- Publication number
- GB1326091A GB1326091A GB1326091DA GB1326091A GB 1326091 A GB1326091 A GB 1326091A GB 1326091D A GB1326091D A GB 1326091DA GB 1326091 A GB1326091 A GB 1326091A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- windings
- phase
- transformers
- primary
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1326091 Electroslag refining apparatus ASSOCIATED ELECTRICAL INDUSTRIES Ltd 19 April 1971 [8 April 1970] 16741/70 Heading H5H [Also in Division G3] Electroslag apparatus comprises two consumable electrodes 2, 3 advanced in unison into the slag layer 5 and supplied by the secondary windings 9, 11 of respective transformers 7, 8 whose primary windings 13, 14 are connected to A.C. supply terminals 6, the voltages across the windings 9, 11 being variable in accordance with signals representative of the difference between the actual separation of each electrode from the molten metal pool 12 and a desired separation, so that the electrodes 2, 3 are consumed at the same rate. The actual separation signal is obtained by sensing the voltage and current between the electrode and the pool 12 to derive the impedance of the slag therebetween. The difference signals may control saturable reactors connected in the primary circuits of the transformers 7, 8. The movement of the electrodes is controlled by sensing the current through one of them or the current through both, in which case the sum or average of the two currents is the control parameter. The primary or secondary windings of the transformers 7, 8 are arranged so that the instantaneous currents 18, 19 through the electrodes 2, 3 are substantially equal and opposite, thereby reducing the inductances of the electrode circuits. The primary windings 13, 14 may be connected in series across the terminals 6, Fig. 5 (not shown) or across one phase of a three phase supply, Fig. 4 (not shown). Alternatively they may be connected to respective phases of a three phase supply, Fig. 3 (not shown) or to form a <SP>3</SP>/ 2 -phase Scott-connected arrangement therewith.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1674170 | 1971-04-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1326091A true GB1326091A (en) | 1973-08-08 |
Family
ID=10082829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1326091D Expired GB1326091A (en) | 1971-04-19 | 1971-04-19 | Electroslag refining of metals |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1326091A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0011054A1 (en) * | 1978-10-31 | 1980-05-14 | CENTRO SVILUPPO MATERIALI S.p.A. | System for the control and regulation of electrodes in the electro-slag remelting process |
US4418741A (en) * | 1979-11-26 | 1983-12-06 | Bondarenko Oleg P | Method of controlling relative movement between an ingot and a mold |
CN113430392A (en) * | 2021-06-18 | 2021-09-24 | 山西太钢不锈钢股份有限公司 | Efficient arc striking method for large-end-face electrode blank for electroslag smelting |
-
1971
- 1971-04-19 GB GB1326091D patent/GB1326091A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0011054A1 (en) * | 1978-10-31 | 1980-05-14 | CENTRO SVILUPPO MATERIALI S.p.A. | System for the control and regulation of electrodes in the electro-slag remelting process |
US4418741A (en) * | 1979-11-26 | 1983-12-06 | Bondarenko Oleg P | Method of controlling relative movement between an ingot and a mold |
CN113430392A (en) * | 2021-06-18 | 2021-09-24 | 山西太钢不锈钢股份有限公司 | Efficient arc striking method for large-end-face electrode blank for electroslag smelting |
CN113430392B (en) * | 2021-06-18 | 2022-07-01 | 山西太钢不锈钢股份有限公司 | Efficient arc striking method for large-end-face electrode blank for electroslag smelting |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |