PL112589B1 - Electromagnetic type continuous casting mould for continuously and semicontinuously casting ingots of metals and their alloys - Google Patents

Electromagnetic type continuous casting mould for continuously and semicontinuously casting ingots of metals and their alloys Download PDF

Info

Publication number
PL112589B1
PL112589B1 PL19755777A PL19755777A PL112589B1 PL 112589 B1 PL112589 B1 PL 112589B1 PL 19755777 A PL19755777 A PL 19755777A PL 19755777 A PL19755777 A PL 19755777A PL 112589 B1 PL112589 B1 PL 112589B1
Authority
PL
Poland
Prior art keywords
inductor
ring
metal
metals
alloys
Prior art date
Application number
PL19755777A
Other languages
Polish (pl)
Other versions
PL197557A1 (en
Inventor
Ryszard Dzierwa
Wladyslaw Wegrzynski
Stanislaw Banas
Marian Rohdel
Original Assignee
Inst Metali Niezelaznych
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inst Metali Niezelaznych filed Critical Inst Metali Niezelaznych
Priority to PL19755777A priority Critical patent/PL112589B1/en
Publication of PL197557A1 publication Critical patent/PL197557A1/en
Publication of PL112589B1 publication Critical patent/PL112589B1/en

Links

Landscapes

  • Continuous Casting (AREA)

Description

Przedmiotem wynalazku jest krystalizator elek¬ tromagnetyczny do ciaglego i pólciaglego odlewa¬ nia wlewków z metali i stopów.Znany z opisu wynalazku do- swiadectwa autor* skiego ZSRR Nr 233166 krystalizator elektromag¬ netyczny sklada sie ze zbiornika wraz z króccem doprowadzajacym ciekly metal, plywaka, kierow¬ nicy wodnej, stopki i wzbudnika chlodzonego wo¬ da. W krystalizatorze tym strefe dzialania zmien¬ nego pola magnetycznego wytwarza sie przez wzbudnik zasilany pradem przemiennym o okres¬ lonej czestotliwosci. Medium chlodzace podaje sie. na krzepnacy wlewek ze spryskiwacza usytuowa¬ nego wspólosiowo ze wzbudnikiem, przy czym strumien cieczy kierowany jest na wlewek za pomoca pierscienia kierujacego, który moze spel¬ niac równoczesnie role ekranu elektromagnetycz¬ nego.W procesie ksztaltowania wlewka w polu elek¬ tromagnetycznym obserwuje sie czesto wady wy¬ nikajace ze slabego odgazowania i modyfikacji oraz faldy na powierzchni bocznej wlewka. Zgod¬ nie z opisami wynalazków do swiadectw autor¬ skich ZSRR Nr 268 607 i 319 376 niedogodnosci te moga byc czesciowo niwelowane przez zastoso¬ wanie dwóch zmiennych pól magnetycznych o róz¬ nej czestotliwosci, które uzyskuje sie z dwóch wzbudników lub jak przedstawiono w opisie wy¬ nalazku do swiadectwa autorskiego ZSRR Nr 267 022, przez zastosowanie dodatkowego pierscie¬ nia metalowego usytuowanego wspólosiowo ze wzbudnikiem, nad lustrem cieklego metalu, co jednak znacznie , komplikuje konstrukcje urza¬ dzenia. 5 Zgodwie z wynalazkiem krystalizator elektro¬ magnetyczny wyposazony jest we wzbudnik w postaci niezamknietego pierscienia, na którego wewnetrznej poboczniey znajduja sie otwory od¬ prowadzajace wode chlodzaca wzbudnik, poprzez 10 kierownice wodna, na boczna powierzchnie krzep¬ nacego metalu. Wysokosc pierscienia wzbudnika stanowi */5 do Vl szerokosc pierscienia wzbudnika stanowi Vs do 7i2» zas szczelina pomiedzy we¬ wnetrzna powierzchnia pierscienia wzbudnika, a boczna powierzchnia wlewka z krzepnacego me¬ talu stanowi Vio do 1/2o srednicy odlewanego wlewka.\ Krystalizator elektromagnetyczny umozliwia znaczna poprawe strutkury wlewka przy równo- 20 czesnym zachowaniu prostoty konstrukcji urza¬ dzenia, poniewaz wprowadzona dodatkowo niska czestotliwosc wplywa korzystnie na uksztaltowanie struktury wlewka w czasie jego krzepniecia. Po¬ nadto konstrukcja wzbudnika umozliwia wyko- 25 rzystanie wody chlodzacej wzbudnik do chlodzenia krzepnacego wlewka metalu.Przedmiot wynalazku uwidoczniony jest w przy¬ kladzie wykonania na rysunku bedacym przekro¬ jem podluznym krystalizatora elektromagnetycz- 30 nego. Krystalrzator elektromagnetyczny sklada sie 15 112 5893 112 589 4 ze zbiornika 1 z króccem, plywaka 2, kierownicy wodnej 3, wzbudnika 4 i ruchomej stopki 5, na która w poczatkowym momencie odlewania, zale¬ wany jest krzepnacy metal 6. Na wewnetrznej po- ' bocznicy pierscienia wzbudnika 4 znajduja sie otwory 7, przez które woda chlodzaca wzbudnik 4 podawana jest poprzez kierownice 3 na boczna powierzchnie krzepnacego metalu 6.Wysokosc wzbudnika wynosi 5<0 mm, a szerokosc pierscienia wzbudnika 20 mm. Wzbudnik zasila sie pradem przemiennym o podstawowej czestotliwosci 1850 Hz i równoczesnie pradem przemiennym o czestotliwosci 100 Hz. Krystalizator przeznaczony jest do odlewania wlewków aluminiowych o sred¬ nicy 2i2i0 mm-.Ciekly metal doprowadza sie z pieca oporowe¬ go do zbiornika 1 skad za pomoca krócca i ply¬ waka 2 wprowadza sie go do strefy oddzialywania pola elektromagnetycznego. Górny menisk cieklego metalu reguluje sie za pomoca plywaka 2. Dopro¬ wadzany metal posiada teimiperaiture 685°C. Strefa 10 15 20 chlodzenia wlewka rozpoczyna sie ponizej osi po-- zi ornej wzbudnika w odleglosci 15 mm.Zastrzezenie patentowe Krystalizator elektromagnetyczny do ciaglego i pólciaglego odlewania wlewków z metali i sto¬ pów metali w zmiennym polu elektromagnetycz¬ nym, zawierajacy zbiornik wraz z króccem do¬ prowadzajacym ciekly metal, plywak, kierownice wodna, wzbudnik chlodzony woda i stopke, zna¬ mienny tym, ze wzbudnik (4) stanowi pierscien nie zamkniety, na którego wewnetrznej pobocznicy znajduja sie otwory (7) odprowadzajace wode, chlodzaca wzbudnik, poprzez kierownice wodna (3) na boczna powierzchnie krzepnacego metalu (6), przy czym wysokosc pierscienia wzbudnika (4) stanowi Vs do x/z, szerokosc pierscienia wzbud¬ nika (4) stanowi 1/8 do Vi2, zas szczelina pomie¬ dzy wewnetrzna powierzchnia pierscienia wzbud¬ nika (4), a boczna powierzchnia wlewka z krzep¬ nacego metalu (6) stanowi Vi° do V2o srednicy od¬ lewanego wlewka.PZGral. Koszalin Dh985 105 A-4 Cena 45 rf PLThe subject of the invention is an electromagnetic crystallizer for the continuous and semi-continuous casting of ingots of metals and alloys. The electromagnetic crystallizer known from the description of the invention of the author's author of the USSR No. 233166 consists of a tank with a nozzle for liquid metal, a float, water steering wheel, foot and water-cooled inductor. In this crystallizer, the zone of operation of an alternating magnetic field is created by an inductor supplied with an alternating current of a certain frequency. The cooling medium is served. on the solidifying ingot from the sprinkler located coaxially with the inductor, where the liquid stream is directed to the ingot by means of a steering ring, which can simultaneously act as an electromagnetic screen. In the process of shaping the ingot in an electromagnetic field, defects are often observed resulting from poor degassing and modification and folds on the side surface of the ingot. In accordance with the descriptions of inventions to the author's certificates of the USSR Nos. 268 607 and 319 376, these inconveniences can be partially mitigated by the use of two variable magnetic fields of different frequency, which are obtained from two inductors or as described in the description Of the invention to the USSR copyright certificate No. 267 022, through the use of an additional metal ring located coaxially with the inductor above the liquid metal mirror, which, however, significantly complicates the structure of the device. According to the invention, the electromagnetic crystallizer is provided with an inductor in the form of an open ring, on the inner side of which there are openings for water to cool the inductor, through a water guide, to the side surface of the solidified metal. The height of the inductor ring is 5 to Vl, the width of the inductor ring is Vs to 7 and 2, and the gap between the inner surface of the inductor ring, and the side surface of the solidifying metal ingot is V 10 to 1 / 2o of the diameter of the cast ingot. \ The electromagnetic crystallizer allows a significant improvement in the structure of the ingot while maintaining the simplicity of the structure of the device, because the additionally introduced low frequency has a positive effect on the shaping of the structure of the ingot during its solidification. Moreover, the construction of the inductor makes it possible to use water cooling the inductor to cool the solidifying ingot of metal. The subject of the invention is shown in the example of the embodiment in the drawing which is a longitudinal section of the electromagnetic crystallizer. The electromagnetic crystallizer consists of a tank 1 with a nozzle, a float 2, a water guide 3, an inductor 4 and a movable foot 5, onto which solidifying metal 6 is poured on the inner surface at the initial moment of casting. On the side of the inductor ring 4 there are openings 7 through which the water cooling the inductor 4 is fed through the vanes 3 onto the side surface of the solidifying metal 6. The height of the inductor is 5 <0 mm, and the width of the inductor ring is 20 mm. The inductor is powered by alternating current with a basic frequency of 1850 Hz and simultaneously with alternating current with a frequency of 100 Hz. The crystallizer is intended for casting aluminum ingots with a diameter of 2 to 10 mm. The liquid metal is fed from the resistance furnace to the tank 1, which is then introduced into the electromagnetic field impact zone by means of a stub and a float. The upper liquid metal meniscus is adjusted by the float 2. The feed metal has a temperature of 685 ° C. The cooling zone of the ingot begins below the axis of the inductor at a distance of 15 mm. Patent claim Electromagnetic crystallizer for continuous and semi-continuous casting of metal ingots and metal alloys in an alternating electromagnetic field, containing a tank with a nozzle liquid metal, float, water guides, the inductor cooled with water and the foot, characterized by the fact that the inductor (4) is an open ring, on the inner side of which there are water drainage holes (7), cooling the inductor through the vanes water (3) on the side surface of the solidifying metal (6), the height of the inductor ring (4) being Vs to x / z, the ring width of the inductor (4) being 1/8 to Vi2, and the gap between the inner surface the exciter ring (4), and the lateral surface of the solidified metal ingot (6) is 1 to 20 times the diameter of the cast ingot. Koszalin Dh985 105 A-4 Price 45 rf PL

Claims (1)

1. Zastrzezenie patentowe Krystalizator elektromagnetyczny do ciaglego i pólciaglego odlewania wlewków z metali i sto¬ pów metali w zmiennym polu elektromagnetycz¬ nym, zawierajacy zbiornik wraz z króccem do¬ prowadzajacym ciekly metal, plywak, kierownice wodna, wzbudnik chlodzony woda i stopke, zna¬ mienny tym, ze wzbudnik (4) stanowi pierscien nie zamkniety, na którego wewnetrznej pobocznicy znajduja sie otwory (7) odprowadzajace wode, chlodzaca wzbudnik, poprzez kierownice wodna (3) na boczna powierzchnie krzepnacego metalu (6), przy czym wysokosc pierscienia wzbudnika (4) stanowi Vs do x/z, szerokosc pierscienia wzbud¬ nika (4) stanowi 1/8 do Vi2, zas szczelina pomie¬ dzy wewnetrzna powierzchnia pierscienia wzbud¬ nika (4), a boczna powierzchnia wlewka z krzep¬ nacego metalu (6) stanowi Vi° do V2o srednicy od¬ lewanego wlewka. PZGral. Koszalin Dh985 105 A-4 Cena 45 rf PL1. Patent claim Electromagnetic crystallizer for continuous and semi-continuous casting of ingots from metals and metal alloys in a variable electromagnetic field, including a tank with a nozzle for liquid metal, a float, a water guide, an inductor cooled by water and a foot, alternatively, the inductor (4) is an open ring, on the inner side of which there are holes (7) for water drainage, cooling the inductor, through the water guide (3) to the side surface of the solidifying metal (6), the height of the inductor ring ( 4) is Vs to x / z, the width of the exciter ring (4) is 1/8 to Vi2, and the gap between the inner surface of the exciter ring (4) and the side surface of the solidified metal ingot (6). ) is 100 to 20 times the diameter of the cast ingot. PZGral. Koszalin Dh985 105 A-4 Price 45 rf PL
PL19755777A 1977-04-21 1977-04-21 Electromagnetic type continuous casting mould for continuously and semicontinuously casting ingots of metals and their alloys PL112589B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19755777A PL112589B1 (en) 1977-04-21 1977-04-21 Electromagnetic type continuous casting mould for continuously and semicontinuously casting ingots of metals and their alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL19755777A PL112589B1 (en) 1977-04-21 1977-04-21 Electromagnetic type continuous casting mould for continuously and semicontinuously casting ingots of metals and their alloys

Publications (2)

Publication Number Publication Date
PL197557A1 PL197557A1 (en) 1978-11-06
PL112589B1 true PL112589B1 (en) 1980-10-31

Family

ID=19982076

Family Applications (1)

Application Number Title Priority Date Filing Date
PL19755777A PL112589B1 (en) 1977-04-21 1977-04-21 Electromagnetic type continuous casting mould for continuously and semicontinuously casting ingots of metals and their alloys

Country Status (1)

Country Link
PL (1) PL112589B1 (en)

Also Published As

Publication number Publication date
PL197557A1 (en) 1978-11-06

Similar Documents

Publication Publication Date Title
US20220297181A1 (en) Non-contacting molten metal flow control
US7594533B2 (en) Casting steel strip
AU2002222478B2 (en) Treating molten metals by moving electric arc
US3804147A (en) Continuous rotary method of casting metal utilizing a magnetic field
AU2002222478A1 (en) Treating molten metals by moving electric arc
US5799721A (en) Method of remelting metals to form an elongate portion and apparatus therefor
PL112589B1 (en) Electromagnetic type continuous casting mould for continuously and semicontinuously casting ingots of metals and their alloys
Dong et al. Super-high strength 7 A 60 Al alloy by low frequency electromagnetic cast (I)- as-cast structures of billets with diameter of 0. 2 m.
AU2004205421B2 (en) Casting steel strip
US20050034840A1 (en) Method and apparatus for stirring and treating continuous and semi continuous metal casting
RU2492021C1 (en) Method of steel continuous casting
JP2004009064A (en) Method for producing continuously cast slab
JPH04178247A (en) Continuous casting method of steel by casting mold having electromagnetic field
SU1052328A1 (en) Method of machining
RU2349413C2 (en) Steel continuous casting method
RU2325970C1 (en) Method of electromagnetic mixing of continuously cast ingot liquid phase by inductors with travelling electromagnetic field
AU2008200261B2 (en) Treating molten metals by moving electric arc
SU1046003A1 (en) Method of continuous steel casting
RU2027544C1 (en) Method of obtaining continuously cast metal
RU48836U1 (en) DEVICE FOR CONTINUOUS MOLDING OF INGOTS IN AN ELECTROMAGNETIC FIELD
RU2464123C1 (en) Method of adjusting conditions of electromagnetic mixing of ingot liquid phase in slab continuous casting machine and device to this end
NZ270147A (en) Continuous casting of silicon/manganese killed mild steel strip in which molten metal is introduced into the nip between two rollers via a delivery nozzle, solid metal strip being delivered downwardly from the nip
Zhang et al. Research on optimum operation and structure of tundish
JPH06170500A (en) Twin roll type continuous casting apparatus for nonferrous series metal
JPH1029045A (en) Method and equipment for casting metal strip