DE1508961A1 - Method for casting endless metal bars on a rotary machine - Google Patents

Description

DR. ELISABETH JUNG UNO DR. VOLKER VOSSIUS PATENT LAWYERS

• MONKS 29. β I EQ E8 S TB ASSE 2 · TELEPHONE 345087. TELEQB A M Mj ^ WTeTS E Jj N V E N T / M 0 NCHEN

Jan. 10

SohweiEerisohe Aluminum AO »Chippie Chippie / Sohweis

Process for glazing endless metal strands on one Rotary aa solne

Priority) February 2, 1965 / Sohweis Registration number: 1412/65

Under the name Rotarygiessmaaohine)! or nen are those Stranggieesaaschlnan su understand where the Glessform duroh a recess aa tfefang a rotating bath or a rotating Tromel and "is formed duroh a ualan- μ fendesv endless metal belt, the su the recess at a sufficiently long distance a hollow, open-ended closes. Endless strands are »cast on such machines, mainly from aluminum, aluminum alloys, zinc and copper» In the Rotarynaechinenp developed by Ilario Properai to which a Hehrfaohwalswerk is attached »mainly endless metal rods B ₀ B, triangular or pentagonal cross-sections are cast» in the connected Walswerk eu wires of circular cross-section of example

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, wise 10 ma thickness are processed · Has jedooh dl · Ausnehaang la essential reohteokigan Qesrsehnitt, where Ale 0r9Me de - On the long sides that of the Sohaalaeitsa ι »a multifunctional Exceeds, ligaments arise.

The invention relates to a method sua Oleaaea tob endlessea Metallsträngeα on a Rotaryaaeohine and on «Ine Rotarymasohlnesur Execution of the same procedure, but also for daa (Hesse of. Endless bars importance

With the well-known Roterygiessmasohlnen la lormhohlraua arises near the stiffness of the aisle _f which looks allaählloh widened »sorties of the strand largely because of contact with the non-running deodorant tape and in places probably also old the Giesatrommel comes out of the Giesa drum because of the cooling · Deokbandβ does not interfere very much in practice, as long as it is a matter of casting a relatively narrow »endless ribbon of re? .Naluninium or Reinsink! With today's rotary glass soles, large quantities of strips of, for example, 100 and never 200 mm wide are cast from aluminum.

When eating a tape, the sohrunpfspalt is seldom on the sohmal of course, greetings as the one on the broadsides; serious Vaoh parts do not result from it.

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The Behrumpfapalt at the Breitaeiten etOrt Jedooh beaondera bat · Qieeeen aoloher alloys, dta bat “Roasters iu Aueeohwiteuagen tend. There was no such thing as AlMg alloys old 1 $ Hg and above, as well as with UZnMg and AlMgSi alloys, the aucechwltBungen etdren, among other things, more, ala the surface of the Btrangaa before the flerunterwalaen in the modern Begel wader «Xnabraat is nooh planed off The system is introduced into a factory because the rotary machine comes into play, and loaa after peeing a control device, since it is synchronized with the rotary machine.

While ea in Oiaaawalaen (i.e., in Oiaaaen of endless plates awiaohen awei circumferential falaen) and in Oieeeen iwieohen a two circumferential bands (e.g. in banded chillies naoh Uaaelett) Successful eats, aluminum plates of atapieleweiee 7 to $ 0 mm Dioke in a width of 800 to 1500 mm au gieeeen, βiod entepreohende Efforts with Rotarymaeohineη remained successful

At Gieeewalsen, compliance offers a common abatandea the broadsides of the jelly mold cavity as a result of the Rigidity of the whales no great controversy · Even in the case The ribbon mold already leaves the uneven width of the porous cavity adhere well * because the bands awiaohen PUhrung- and Tensioners remain on a straight stretch under high tension and therefore towards the center of the rectilinear Oieeeformhohlrau-

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nee nloht can think of, βο · the distance between the broadsides de · Olessforahohlraumee from each other across the entire width of the same prektleoh let (the edges of the · circumferential Seekba »* de · rest on metal blocks, which are fastened together by a running chain elnd)

In the case of the Rotarygie band nose soles, the conditions are less favorable »so that we have succeeded, bands with uniform dloke From over a width of 300 mm perfectly su gleeaeno Da «rUnrt Gate all of this because the non-running cover tape (usually Steel band) «whose edges ring on the 8 · 1ths, which are rigidly connected to the olesstronmel, and which form the side edges of the Gleesform rest »under the tensile force created by the deflection and tensioning pulleys is exercised »on the 8th track, one broadside on the ee The Oleeefomhohlraumee forms »in its center against the ground the recess on the circumference of the Qleeatromnel is sucked »so that in the case of strips of, for example, 400 to 1200 nm width, the casting mold cavity is considerably narrower in the middle than at the edges; under these conditions it is not necessary, even Tapes are su gleseen, like ele β · Β »for the underwelling of sheet metal needs Bind, Dae let another part of the Rotarygleasnaeohlnen known construction "

The Gieserad is home to the bulb barrel of the Eotaryaaeohinen let Ublioherwelee composed of a coat (crane) that The circumference of the recess forms the glee mold cavity, and

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outside Ahβοhius »walls. Inside the cavity · «is a cooling device arranged for the jacket. Cooling in the hollow space is usually achieved by flowing or splashed Water · Auoh the circumferential cover band is cooled »and in the area of the casting mold cavity ··, mostly duroh indentations the AuesenfIache «it We« βer ·

The dumbbell of the casting drum is mostly in one piece] at least are the side rings that form the narrow sides of the mold form, rigidly connected to the main part of the jacket. That means, that the width of the narrow sides of the Giessfora is unchangeable »

With the invention, the described disadvantages of Oiosen on a rotary machine are eliminated. "

Thus, the invention relates to a method sum of that of endless metal strands using a Rotarygieesmaeohine, which is known daduroh that the Deokband so led is that it rests in the area of the Glessformhohlraumss over its entire length on the cast material and the creation of a Sohrumpf gap on the broad sides prevents »Duroh from resting on the solidified strand is also the inward deposit of the Deodorant tape into the liquid and partially solidified structure counteracted =

The Rotarygiessmaechine to carry out the erfindungsgomäasen

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Processed rewards aioh before owd thereby au ·, daaa dl · Β · 1-tenlength des Mantel · der Oieeetroamel an dleaer radially movable and elaetiaoh stored and as jlantel old facilities at * are brewed, which you la operation the overrun movement Öieestrommel grant »eo daae ale trots Bewegungslloher and elaetleoher Storage of the main part of the · Mantele awangaläoflf mltgenoanen will"

The eo formed and stored rare rings, dl · la OegeneatE on the Ubllohan rotary gyro drums old the coat is flat designed in one piece and rigidly connected to this auoh nloht, give under the pressure the cover bandββ, which under the Pull the deflection movement »The tensioning pulley stands, elastically after, d * h <> they shift in the area of the OieseformhohlraumoB in red on the axis of the shell, whereby the width of the side walls of the GieasformhohlraumeB corresponding to the shrinkage dee Oleesgutea gradually decreases <■

The elaetieohe yielding of the side rings in the fiereloh dee Oiessformhohlraumes but has a consequence, and it was for strands of any width; so also with bars »that a sohrump gap parallel but level of the deodorant band cannot arise «With others Words, the casting room is narrowed vertically and its broad sides due to the hatred of shrinking *

In addition, it calls from the shroud in the area of the Glessformhohlraumee pressure exerted a counter pressure of the pressure exerted by the dumbbell

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formed dieeefonwrandttng «this« Susanmenapiel of Brook and counterpressure causes · · in the case of the erfindongegemäaeen Rotarygiessmaaehine for wide Baaojer, a »B» of 400 in the wide · and about the fact that the cover band is in any case on the largest length of the Gieeeformhohlrauaee eioh not more against the dumbbell i.e. against Bend across the opposite broad side of the öieeefora knows the cross-section of the mold cavity remains in the main thing over its entire width equal "

You Figures 1 and 2 illustrate the relationships in Besag φ on the drilling sump gap _β

FIG. 1 shows the previous solidification process in a rotary casting mold for strips and Figure 2 the solidification process in a fictional rotary mason. kit 10 is the pulley indicated on the inner side and with 11 the coat of the

the curved arrows indicate the Srehriohtung, 12 is the rotating shroud 13 and the outlet end of the ZuftthrungsdUee for df ι liquid metal 14 _c The Oiessformhohlraum starts at 15 '3] is the liquid Oiesskopf. At 17 and 18 the metal begins to solidify on the mold wall. The solidified metal is rewarded with 19.

In the example according to FIG. 1, shrinkage occurs at 20 and 21 This is noticeable as the strand moves away from the wall of the shape of the mold takes off, so that shrinkage gaps 22 and 23 arise »at 24 lays the cast strand on the one formed by the jacket 11

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Mold surface ρ ao that at this point the shrinkage gap 23 disappears ο The shrink gap 22 remains, however, and its Width increases by the amount of that of the disappearing Schruapf epaltes 23 too? This sohrump gaps 22 and 23 interfere as a result of Formation of an air cushion erhebliotu the cooling of the strand

The conditions in continuous casting according to the new process are illustrated in FIG. 2. After solidification at 17 and 18, there is no shrinkage gap because the circumferential shroud is pressed against the strand according to the amount of shrinkage, which is indicated by the arrows directed against the Deokband 12.

By preventing the formation of a shrinkage gap between the drum shell 11 and the deodorant belt 12, there is, on the one hand, the great advantage that no difficulties arise as a result of swelling when glazing alloys that tend to sweat. On the other hand, the better cooling due to the avoidance of the tail-trunk gap also offers noteworthy advantages ρ and Ewar both with pure metals and with alloys «. The stronger cooling allows an increase in the Glessgeschwlndigkeit Glessmasohlne, d.ho a higher production capacity ο Also, another useful application of the powerful cooling is contemplated _r nämlioh choosing a shorter Gieeeformhohlraumes; In this case, the shroud rests on a shorter part of the circumference of the casting drum on the side rings, so that this catfish is covered with a shorter shroud

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1S08961

can happen that, as is well known, after a certain tent he " aetit become muaa and as a result aaaa au berttokalohtlgettden Coate factor is divided. In the case of a "kereren Qieaeformhohlraumea, the example 90 instead of 180 ° de · oa) elcircumferenceea one can take in three ümlenk- baw. Tension pulleys come out while Ublioherwelee needs four of them «ground ·

Figo 3 shows aohematieoh and in the sehnltt a Rotarygieeamaeohlne with four deflection "moved _o tension rollers 10, 25, 26 and 27" With let a deflection roller at the end of the oleae shape hollow space is indicated, which in the palle of a curly Qleeaform the roles 25 and 26 can ereet

flg. 4 shows a description of the rotary gland assembly according to the invention with a larger Qleaeformhohlraum and only three deflection · bsw. Tensioning pulleys for the cover tape ι do not consider the roll 30 let. Kit 31 alnd faeaeraprltadttaen door daa KUhlβη dea cover bandeβ indicated and with 32 devices aum Abetreifen the uberaohUaaigen KUhlwaaeera «Because cooling doesn’t need to be carried out in the Welae} ea also comes that cooling by blowing in air or from fists

The Pig » 5 and 6 veranaohaullohen aohematleoh a version of the inventive Rotarygieeamaeohine for wide plates · PIg. 5 iat a length length through the Kaaohlne · Pig · 6 let

Cross-section length of line AA from Pig. 5 in larger dimensions.

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In Pig · 5, the JSxzentrlElEth of the side rings 33 is opposite the For the sake of clarity, drum shell 42 is drawn greatly exaggerated.

The curved arrows in Pig. 5 indicate the direction of rotation of the shell 34, the rings 33 and the rollers 35 _y 36 and 37 fled to "resulting in the circulation direction of the endless shroud 38 results · Roller 36 at the output of Glessformhohlraumes is" mounted resiliently so that they fled to Maeβgabθ of Sohrompfens can move a little in the direction indicated by the arrow 39 »because the Maas of the Sohrumpfens depends both on the casting metal and also on the gas velocity and the temperature ·

In Pig · 5, 40 indicates the axis of the mantle 34 and 41 the axis of the Rings 33 on. The stroked circle line 42 is in Pig. 5 the lay against the surface 42 of the drum jacket 34 (Pig. 6) · The distance The same as the cylindrical surface 42 and the steel belt 38 is the Dloke of the su gieseenden plate adapted »while the distance of the 8 side rings 33 of each other give the width of the cast strip » where shrinkage is due.

In Fig. 5 let the device for the supply of the metal of the Not included for the sake of clarity · This device can correspond to that of FIGS. Auoh not turned on ~ The devices for cooling the steel belt 38 and the jacket 34 are rewarded. The glees mold cavity starts at 43 and ends

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at 44. The supply of the metals occurs in advance in such a way that the metal element is kept higher «Le the lowest point dee Uafaogea der Bolle 35» ao dees 43 der forahohlraua «it Gleaeaetall liked ieto Za Oiesefforahohlraua iat dae metal aunäehat practically on dea ganaeo cross-sonality oooh flUeeigi ea forms the liquid glue head there (a. Number 16 in Figures 1 and 2) · Then the Metalleoaaelae begins au solidify under Duroheohrelten dee 8οhmelsintertalle " The dioke of the kruete nioat frozen on the gieeafora walls raaoh au and soon the strand la gancen Quereohnltt solidifies »

In the course of the cool one finds a Bretarruageeotaruapfen aunäohet and never put a cooling plug on. under dea on dae Deodorant tape should be applied to rollers 35, 36 and 37 The length 33 according to ltaeegabe dee Sohruapfene and narrow the Gieeeformhohlraum eenkreoht cu the Brelteolten dee Strand. Za Gegeneate au den Yerhaltenleeen with the previous ones Rotaryglessmaeohinen can dae Deokband 38 as a result of the elaetieohen Lenghts of rare length 33 always cast with dea Strand remain in intimate contact · As the side rings 33 below dea pressure of the Deokbandes 38 in the direction of the Aohse Gleeetroanel be moved. Exercises the area 42 of the dumbbell 34 a print in the opposite direction on the strand and over this on the belt 38, since it is prevented, see to arch transversely against the ring surface 42 "The distance" wipe the surface 42 and the steel band 38 reduced oioh after mass administration of shrinking »remains at the full breadth of the

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Strand, the received 8-strand let In the lutte likewise, dlok like on the bands

FIGS. 5 and 6 are a "very good design." the storage and arrangement of the side rings 55 · The elaetieohe radial laohgieblgkeit is ensured by the spiral springs 45, which are arranged in bores 46 in the rings and 47 la jacket elndo Xa this example there are four springs, The number of feathers can vary, but there should be at least three feathers per side ring 4 to 6 · Instead of spiral springs come «.B. auoh leaf and disc springs into consideration. The game swleohen the surfaces 46 the hinge and the surface 49 of the jacket should slide slightly Allowed but not big enough, the flatted metal can penetrate. The distance swlsohon the lower surface $ 0 the Rings 33 and the ab β at 51 des Trume leant els 34 may be just about to be greater than the gap created by shrinking wttrdec With a mold space width of 400 ble 1000 am and one Plate diokes from 7 to 25 am, the distance should be sweokmässlgerweiee the QrlSeee dee 8ohrumpfpaltee by no more than 2 mm Exceed · Ee is intended to avoid “grounding” the dimension in case of a disturbance of the aieseens (see e.g. with a Boapfdurohbruoh) the surface 42 of the drum su close to the shroud 58 drttoken became.

For example according to Fig. 5, the rings 33 by curls 52, the

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in opposite recesses 39 1 · Abeati 51 dee dumbbell 54 intervening η, in the manner of a volvent denial, perpetually running «Itgenonnen. Auoh dl «Number of Mltnehaernooken W tonn vary · Sa must at least »aval MitMhMrnook« η j · side ring available aeins advantageously white aan to Titl · Mitniheernooken wit feathers.

Saa common names for side rings 95 duroh dan coat 94 can also be provided by other means, a.B. duroh ötlfta 54 (Pig 7), which at IiAaTB 55 in a rough 56 the side rings 55 attached alnd · moved lat Jedooh aina Drive mechanism according to the type of volvent mechanism »

JSe can aioh ale "Unaohanawart, daae wiaaen on alnar Streoke dea Vormhohlrauaea dia Binge nooh nloht against dia Trommelaohee can give in, Naalloh when kaln Druok on daa FlUeeige baw * gr. ^ eat parts nooh pulpy metal are coated eollo Dae becomes a pair of radially adjustable control rollers 57 reached on the side rings in a corrugated Abetand before the inlet of the Qieeefomhohlrauaea a divisible Exercise Druok. With the help of these control rollers, the location of the mold cavity B can be determined at which point Retreat of the rings 35 of the Druok dee Deokbandee 38 on the Strand begins «Selbatveratllndlloh form dleee 8 tax roles 57 not an absolutely necessary part of the invention Oiesemaeohine, but represent an advantageous further development represent.

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Instead of the control rollers 57, there are two pairs of τοη Stutrolls twist »if desired» dl · lag · der Side rings In Besug on the coat 54 exactly ta beetles »·« Hler · with the first pair in the Aohsen dar Dalenkrolle on The level connecting the casting mold and the casing is arranged and, if necessary, in the red line on the surface of the casing radially adjustable, just let the wide pair wipe on an 8tell · « the ÜnlenkrolX · at the Binlauf Rare and the Üalenkrolle arranged on the floodplain, and "was at one point dea Gieeeforahohlrauaee" at which the strand noon nloht goose has solidified. varies depending on. Casting metal, gas velocity and IUhIung » For this reason, the swelte 8th roller pair must be adjustable be «either radially or radially or both radially as auoh in circulation direction.

In 3PIg. θ the arrangement of such mare roles is soheaatlsoh indicated « The pair of rollers 58 is located in the level »welohe the Aohse of the UiBlenkrolle 35 and the Aohee 40 of the jacket 34 connects, while the pair of support rollers 59 swisohen the guide roller 35 and you see inflated at the end of the mold cavity, hler pulley, not shown, is arranged. The double arrow 60 indicates the radial adjustability of the pair of support rollers 58 to »while the double arrows 61» 62 and 63 indicate adjustability of the pair of supporting rollers 59 can be seen in Fig. 6 Is an example of an arrangement of the support roller pair 58 atrioh indicated with dotted lines »here, however, without radial adjustment-

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speed. The indicated btatsrolleapaires $ 8 and 59 are embroidered dl · BMentrUitJit of the rings 95 · You «-know» the · the "di · radial" adjustability of the bins · 99 the distance swisohen dm shroud 38 and the Gieeeforawand 42 d ·· dumbbell 94 relaxed in oleic redness. VIe so high, niset dleeer Sow distance Massgabo des BohroBpfeto etnkreoht su deo Breiteei-% · Β dee BtrmBgee Kb · Obwool the BtUtsrolleapaires 98 and 59 but indicated alnd, let everyone FaobJBUiB la able to use the ötütiroX-XtB «Ad your placement iu conetruleren and your mount su be · work part. No further explanations are therefore necessary.

Xb den? Ig · 1 bia $ Bind Auaftthrungafon & en by Rotarymaeohinen eohesatleoh shown »where dae OieeenetaU. des formhohlraua aa Boheitelpunkt der OleaetroeoMl aug «£ Uhrt is · - The pulleys _t which the position of the two ends of the Gfleeeforahohl * rauaee bsstlHMn, need not be arranged as shown in Figures 3, 4 and $. If, in particular, the placement of the Qaleak roll on the inlet side in these figures Ib Beeng on the supply of the Olessmetallee beeoaders is favorable, and see the supply regulation provision in Figs. 9 and 4, old automatic regulation is also used Arrange the casting mold so that the ketal is drawn up or vertically close to the bottom or even vertically or vertically close to the top »Handbook of the 8tranggleeeens» 8. 542 »

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Alumini UJB-V erlag O ob Η »Düsseldorf» 1958) · Bohlietalloh can · aiessmetsll at lower Veil der Eieastroaael horlftontal sugafUhrt be »

The jacket of the Oieeβtrommel biw · des Gieuradee can be attached to the metal high thermal conductivity exist »a« B. ana copper or au »aluminum alloy. At Rotarygiessmasohlnan jndooh becomes ttblioherweiee Forged steel for the jacket and dia Sing · benUtit. In the valley of the erflndaagagemäaaen Rotarygiesamaaehine it can be advantageous, the rings made of elnaa metal sole less rigid able to use »β.B, made of rustproof« steel *

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Claims (1)

1. Procedure in Gieeeen tob endless MetaUatrftngea under Use of a botarjgleeeaaaohlne, dadaruh gekennaeiohnet, the «daa Deokband ao is led, daaa ·· la area dea aieseforohohlraumes on daaaaa ganaer IAnge avf dea Ctieaaguely rests on and there is a Sohruapfepalte prevented on the broad sides. 2 · Rotarygieeevorriontung aur AttafHarung daa Terfahreaa aaoh claim I ₉ daduroh gekennaeiobnet daaa the side rioge (33) of the jacket of the OieestrometX (34) on which are radially movable and elaatlaoh mounted and aa jacket old Sinriohtungen the drum movement are attached to them To give. 3 · Device naoh Anepruoh 2 »daduroh gekennaelohnet, because ·· the side rings (33) on the side faces (49) of the dumbbell, the casting drum, are arranged with a play, aaa a lelohtea Gliding guaranteed, but no fluidic metal can penetrate. 4β device naoh Anepruoh 2 and 3 $ daduroh that the side rings (33) are connected to the oil drum with the STOlTeatOBTorahnung (52/93), where fttr is the radial There is movement through the side rings (33) BAD ORJGlNAL 909-5 / 0294 5 · device according to claim 2 wad 4 »thereby gokennielohnet, da ·· awlaohen represents β the stables Bvolventanverianung (52/53) Springs (45) In radial indentations Ib dumbbell (34) the Qleaatronel and arranged in the rings (35) and the elaetlaohe bearing is rare ring (33) guarantee" 6 Know «device naoh Anapruoh 2» thereby · pays »da ·· each side ring has at least three springs (45) and 7 «Device naoh Anapruoh 2 and 4», which is worthwhile, daaa the Svolventenveraahnung (52/53) 4a ring at least iwel lfitnehaarnooken (52). 8 · Device naoh Anapruoh 2 »6 and 7» marked » there are just as many driver cams (52) and springs (45) and · 9 · Device naoh Anapruoh 2 »gekennaeiohnet by« in pair radially adjustable control rollers (57) »dlo in abatand in front of the · inlet (43) dea Oieeeiorahohlrauaee on the rare rings (33) are stumped · 10 · Device naoh Anapruoh 2 "g" identifies the arrangement two pairs of ancient mare rolls (58) and (59), of which there is the first pair (58) in the Aohaen of the pulleys 909845/0294 _BA D ORIGINAL 1S08961 ■ a An Qteaetontinlaitfatltt and flu Troeetlmentel · * erb IndtBdta M «Bt BBiA da · aadtrt Pear (59) at one point iwl-BBBtB * tr HBlBBkMUt aa dtr Binlaufttlt · and dtr Xt as itr sittatsBdagt du wobtBtBtt 59) TtrtttUbar did BATH 9098A5 / 0294 Blank page