CN1158770A - Electromagnetic stirring apparatus for use in slab continuous casting crystallizer - Google Patents
Electromagnetic stirring apparatus for use in slab continuous casting crystallizer Download PDFInfo
- Publication number
- CN1158770A CN1158770A CN 96121903 CN96121903A CN1158770A CN 1158770 A CN1158770 A CN 1158770A CN 96121903 CN96121903 CN 96121903 CN 96121903 A CN96121903 A CN 96121903A CN 1158770 A CN1158770 A CN 1158770A
- Authority
- CN
- China
- Prior art keywords
- continuous casting
- crystallizer
- magnetic field
- mould
- molten steel
- 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.)
- Granted
Links
- 238000009749 continuous casting Methods 0.000 title claims description 14
- 238000003756 stirring Methods 0.000 title claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 11
- 230000003068 static effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 230000005426 magnetic field effect Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 1
Images
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
- B22D11/114—Treating the molten metal by using agitating or vibrating means
- B22D11/115—Treating the molten metal by using agitating or vibrating means by using magnetic fields
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Molten steel introduced into a continuous slab casting mould (1) is subjected to different electromagnetic fields from an arrangement of electromagnetic coils (6a, 6b, 7a, 7b) along the broad side walls of the mould which can produce fields circulating (I) both sides of the centre of the mould, moving (II) both sides of the mould centre towards the narrow side walls (3), inwards towards the mould centre (III) or being static (IV).
Description
The present invention relates to the electromagnetic mixing apparatus in a kind of continuous casting crystallizer for plate billet, wherein the molten steel that is injected crystallizer by cast gate is applied different electromagnetic fields selectively by solenoid.
In the disclosed this type agitating device of JP-A63-188461,, selectively solenoid is applied alternating current or direct current when carrying out electromagnetic agitation or restriction during MOLTEN STEEL FLOW for improving continuous casting billet quality.
Disclosed a kind of electromagnetic mixing apparatus among the US-PS3153820.For producing the mixing power of varying strength, can continuously encourage electromagnet by changing frequency and/or phase place.These measures also are in order to improve continuous casting billet quality.
Task of the present invention is, a kind of agitating device of the above-mentioned type is provided, and more is applicable to the different operating environment of various steel qualities and continuous casting installation for casting for making this agitating device, and this equipment is compared with known devices has four kinds of whipping procedures.Particularly when after-teeming and low speed casting, the distribution of molten steel can improve, and when high speed casting, internal soundness can be improved, and bath surface can become stable.
To realize above-mentioned task like this according to the present invention, to the solenoid energising that is provided with along the crystallizer broadside,
With the magnetic field effect (I) of formation wreath line closes,
Point to the magnetic field effect (II) of narrow limit (3) respectively to be formed on both sides, crystallizer center,
With the magnetic field effect (III) at formation sensing crystallizer center,
To form stabilizing magnetic field effect (IV).
The computer of control continuous casting carries out suitably automatically controlled and finishes energising to stirring coil.
The features and advantages of the present invention are described with reference to the accompanying drawings.
The continuous casting crystallizer for plate billet 1 that signal is drawn in Fig. 1 comprises two broadsides 2 and two narrow limits 3.By cast gate 4 with in the molten steel injection plate blank continuous casting crystallizer 1.Represent with arrow 5 from the casting molten steel that the side tapping hole flows out.In order to add molten steel, be provided with electromagnetic stirrer coil 6a, 6b, 7a, 7b along broadside 2, for adapting to different continuous casting programs and various working environment, in a different manner by automatically controlled to above-mentioned coil electricity.
Fig. 2's various working method I-IV has roughly drawn.
In working method I, stirring coil 6a, the 6b that is arranged on the broadside 2 switched on to form continuous shifting magnetic field 8.In order to form circulation, stirring coil 7a, the 7b that is arranged on another broadside switched on to form opposite shifting magnetic field 9.
Under specified casting rate, this stirring can be used to improve purity, improves surface quality.
In working method II, respectively stirring coil 6a, 6b and 7a, the 7b that is arranged on both sides, crystallizer center switched on to form the magnetic field 10 on the narrow limit of sensing.When beginning to cast and low speed when casting, the above-mentioned magnetic field of casting molten steel 5 flow faster that makes makes molten steel obtain best distribution in wide blank continuous casting crystallizer.
In working method III, respectively stirring coil 6a, 6b and 7a, the 7b that is arranged on both sides, crystallizer center switched on to produce the magnetic field effect at sensing crystallizer center (gate location).When high speed casting, the above-mentioned casting molten steel 5 slack-off shifting magnetic fields 11 of flowing that make have been stablized bath surface and and then have been improved slab surface quality.In addition, because field trash is upwards separated out fast, eliminated inclusion defect.
In working method IV, coil 6,7 is fed identical electric current, the stabilizing magnetic field 12 of Xing Chenging makes turbulent must slowly descending by molten steel terribly in high speed casting thus.
Claims (2)
1. the electromagnetic mixing apparatus in the continuous casting crystallizer for plate billet, wherein the molten steel that is injected crystallizer by cast gate is applied different electromagnetic fields selectively by solenoid, it is characterized in that, to solenoid (6a, 6b, 7a, the 7b) energising that is provided with along continuous casting crystallizer for plate billet (1) broadside (2)
To form the magnetic field (I) of circulation sealing;
Point to the magnetic field (II) of narrow limit (3) to be formed on both sides, crystallizer center;
To form the magnetic field (III) of pointing to the crystallizer center;
To form stable magnetic field (IV).
2. electromagnetic mixing apparatus as claimed in claim 1 is characterized in that, above-mentioned stirring coil (6a, 6b, 7a, 7b) is switched on by the computer of control continuous casting automatically controlledly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995142211 DE19542211B4 (en) | 1995-11-13 | 1995-11-13 | Electromagnetic stirring device for a slab casting mold |
| DE19542211.2 | 1995-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1158770A true CN1158770A (en) | 1997-09-10 |
| CN1066653C CN1066653C (en) | 2001-06-06 |
Family
ID=7777305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96121903A Expired - Fee Related CN1066653C (en) | 1995-11-13 | 1996-11-13 | Electromagnetic stirring apparatus for use in slab continuous casting crystallizer |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0774313A1 (en) |
| JP (1) | JPH09164458A (en) |
| CN (1) | CN1066653C (en) |
| DE (1) | DE19542211B4 (en) |
| RU (1) | RU2170157C2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293965C (en) * | 2000-06-27 | 2007-01-10 | Abb股份有限公司 | Method and device for continuous casting of metals in a mold |
| CN1325198C (en) * | 2002-10-14 | 2007-07-11 | 罗泰莱克公司 | Method and device for controlling flows in a continuous slab casting ingot mould |
| CN101386060B (en) * | 2008-10-09 | 2011-09-28 | 苏州有色金属研究院有限公司 | Novel copper and copper alloy plate belt electromagnetism assistant casting method and device |
| CN106475537A (en) * | 2015-08-25 | 2017-03-08 | 宝山钢铁股份有限公司 | The adjustable electromagnetic mixing apparatus of stirring region and method |
| CN106536087A (en) * | 2014-04-25 | 2017-03-22 | 蒂森克虏伯钢铁欧洲股份公司 | Method and device for thin-slab strand casting |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19738821A1 (en) * | 1997-09-05 | 1999-03-11 | Aeg Elotherm Gmbh | Device for electromagnetic stirring of a molten metal |
| FR2861324B1 (en) * | 2003-10-27 | 2007-01-19 | Rotelec Sa | ELECTROMAGNETIC BREWING PROCESS FOR CONTINUOUS CASTING OF EXTENDED SECTION METAL PRODUCTS |
| JP4967856B2 (en) * | 2007-06-28 | 2012-07-04 | 住友金属工業株式会社 | Steel continuous casting method |
| JP4968020B2 (en) * | 2007-11-28 | 2012-07-04 | 住友金属工業株式会社 | Operating method at the beginning of casting during continuous casting of steel |
| JP5029324B2 (en) * | 2007-11-28 | 2012-09-19 | 住友金属工業株式会社 | Steel continuous casting method |
| DE102012213746A1 (en) | 2012-08-02 | 2014-02-06 | Sms Siemag Ag | Device for the shaped application of at least partially solidified metal, in particular continuous casting mold, and method for operating such a device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3153820A (en) * | 1961-10-09 | 1964-10-27 | Charles B Criner | Apparatus for improving metal structure |
| AU516491B2 (en) * | 1978-11-06 | 1981-06-04 | Nippon Steel Corporation | Continuous casting |
| JPS6037251A (en) * | 1983-08-11 | 1985-02-26 | Kawasaki Steel Corp | Electromagnetic stirring method of molten steel for continuous casting mold |
| JPS62203648A (en) * | 1986-02-28 | 1987-09-08 | Nippon Steel Corp | Electromagnetic coil apparatus for continuous casting mold |
| JPH07100222B2 (en) * | 1986-10-20 | 1995-11-01 | 日本鋼管株式会社 | Electromagnetic stirrer for continuous casting |
| JPH07100223B2 (en) * | 1987-01-30 | 1995-11-01 | 新日本製鐵株式会社 | Electromagnetic coil device for continuous casting mold |
| KR100202471B1 (en) * | 1994-03-07 | 1999-06-15 | 다나카 미노루 | Continuous casting method and apparatus |
-
1995
- 1995-11-13 DE DE1995142211 patent/DE19542211B4/en not_active Expired - Lifetime
-
1996
- 1996-10-30 EP EP96117372A patent/EP0774313A1/en not_active Withdrawn
- 1996-11-11 JP JP29861796A patent/JPH09164458A/en active Pending
- 1996-11-12 RU RU96121804A patent/RU2170157C2/en active
- 1996-11-13 CN CN96121903A patent/CN1066653C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293965C (en) * | 2000-06-27 | 2007-01-10 | Abb股份有限公司 | Method and device for continuous casting of metals in a mold |
| CN1325198C (en) * | 2002-10-14 | 2007-07-11 | 罗泰莱克公司 | Method and device for controlling flows in a continuous slab casting ingot mould |
| CN101386060B (en) * | 2008-10-09 | 2011-09-28 | 苏州有色金属研究院有限公司 | Novel copper and copper alloy plate belt electromagnetism assistant casting method and device |
| CN106536087A (en) * | 2014-04-25 | 2017-03-22 | 蒂森克虏伯钢铁欧洲股份公司 | Method and device for thin-slab strand casting |
| CN106536087B (en) * | 2014-04-25 | 2020-07-24 | 蒂森克虏伯钢铁欧洲股份公司 | Method and apparatus for continuous casting of thin slabs |
| CN106475537A (en) * | 2015-08-25 | 2017-03-08 | 宝山钢铁股份有限公司 | The adjustable electromagnetic mixing apparatus of stirring region and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09164458A (en) | 1997-06-24 |
| CN1066653C (en) | 2001-06-06 |
| DE19542211A1 (en) | 1997-05-15 |
| RU2170157C2 (en) | 2001-07-10 |
| EP0774313A1 (en) | 1997-05-21 |
| DE19542211B4 (en) | 2005-09-01 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |