PL33211B1 - Liquid metal rolling equipment. - Google Patents

Liquid metal rolling equipment. Download PDF

Info

Publication number
PL33211B1
PL33211B1 PL33211A PL3321145A PL33211B1 PL 33211 B1 PL33211 B1 PL 33211B1 PL 33211 A PL33211 A PL 33211A PL 3321145 A PL3321145 A PL 3321145A PL 33211 B1 PL33211 B1 PL 33211B1
Authority
PL
Poland
Prior art keywords
metal
liquid metal
mold
metal rolling
continuous form
Prior art date
Application number
PL33211A
Other languages
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL33211B1 publication Critical patent/PL33211B1/en

Links

Description

W dotychczasowych urzadzeniach do walcowania plynnego metalu stosuje sie wlewanie plynnego metalu miedzy walce.Na skutek malego przewodnictwa ciepl¬ nego wewnatrz plynnego metalu, odpro¬ wadzenie wielkich ilosci ciepla z we¬ wnatrz plynnego metalu na powierzchnie walców jest w tych urzadzeniach niedo¬ stateczne. Poza tym metal walcuje sie w tych urzadzeniach pionowo, wiec nie mozna bylo stosowac bezposredniego dal¬ szego nieprzerwanego walcowania pozio¬ mego w celu otrzymania gotowego konco¬ wego produktu.Aby uniknac tych wad, stosuje sie na¬ stepujace urzadzenie wedlug wynalazku, podane dla przykladu na zalaczonym ry¬ sunku, przy czym fig. 1 przedstawia ogól¬ ny schemat tego urzadzenia, fig. 2, 3, 4, 6, 7 przedstawiaja rozmaite postacie form ciaglych, fig. 5 przedstawia forme ciagla z trzema kalibrami dla wlewanego meta¬ lu, fig, 8 przedstawia przekrój walca for¬ mujacego. Ze zbiornika metalu (kadzi, mieszalnika i t. d.) plynny metal rynna na¬ chylona 2 wlewa sie do formy ciaglej 3.Forma ta jest nachylona pod katem a, wiekszym niz kat tarcia plynnego metalu o sciany formy ciaglej. Kat nachylenia formy mozna zmieniac zaleznie od po¬ trzeby.W formie ciaglej szybkosc posuwu moz¬ na zmienic w sposób ciagly, w zaleznosci od czasu potrzebnego do krzepniecia róz¬ nej grubosci warstw metalu.Aby niedopuscic do utworzenia siestruktury odlewu i likwacji, to znaczy do calkowitego skrzepniecia i skrystalizowa¬ nia metalu w formie ciaglej, proces dopro¬ wadza sie tylko do ochlodzenia do tempe¬ ratury poczatku krzepniecia, tak ze z for- my ciaglej metal wychodzi czesciowo skrzeply o mieszaninie krysztalów i plyn¬ nego metalu, t. j. w stanie ciastowatym lub o zewnetrznych tylko zlekka zaskrze- plych warstwach i cieklym jeszcze srodku.Po wyjsciu z formy ciaglej metal krzep¬ nacy podany jest prowadnica nachylonai -t- do walców formujacych 5. Prowadnica na¬ chylona ma na celu niedopuszczanie do rozpadniecia sie lub do rozerwania nie- skrzeplej calkowicie warstwy metalu i podsuniecie jej dalej miedzy walce.Poniewaz warstwa metalu dostaje sie miedzy walce formujace w czasie krzep¬ niecia, a wiec o malym oporze na sciska¬ nie, mozna stosowac tu bardzo duzy sto¬ pien zgniatania. Obroty walców formuja¬ cych, jak i posuw fcrmy ciaglej maja cia¬ gla regulacje i sa wzajemnie zsynchronizo¬ wane. Walce sa chlodzone tak zewnatrz, jak i wewnatrz.Forma ciagla zaleznie od potrzeby mo.- ze byc niechlodzona, lub chlodzona wo¬ da, olejem, powietrzem i t. d. z równocze¬ snym suszeniem i lakierowaniem, aby u- niknac przyczepiania sie krzepnacego me¬ talu do powierzchni formy. Przyrzady do suszenia i lakierowania sa oznaczone na fig. 1 cyframi 0 i 7, Dla bardzo cienkich warstw metalu for¬ me ciagla tworza dwie tasmy metalowe bez konca: górna i dolna (fig. 2). Moze zajsc tez przypadek stosowania tylko jed¬ nej dolnej tasmy, wtedy forma ciagla z góry jest otwarta.Do ograniczenia szerokosci warstwy od¬ lewanego metalu przy tasmach ciaglych, na dolnej tasmie z boków przesuwaja sie tasmy ograniczajace # o wysokosci równej grubosci tej warstwy.Dla grubszych warstw zamiast ciaglej tasmy stosuje sie formy ciagle polaczone tak ze soba, aby warstwa ta otrzymala gladki i ciagly przekrój (fig. 4). Przy sto¬ sowaniu formy ciaglej do walców formuja¬ cych kalibrowych polaczone te formy mu¬ sza posiadac zadany kaliber dla wlewane¬ go metalu. Kalibrów takich 9 w formie po¬ laczonej moze byc kilka obok siebie (fig. 5). Forma taka moze skladac sie równiez z czterech tasm polaczonych: górnej, dol¬ nej i dwóch bocznych. Wtedy walce for¬ mujace musza tez posiadac odpowiednie kalibry.Bezposrednio za walcami formujacymi moze znajdowac sie odpowiednia walcow¬ nia 10 (fig, l)f walcujaca ostatecznie me¬ tal w postaci blach, drutu, pretów, rur czy innych ksztaltowników. Moga byc tez u- stawione piece do ciaglej obróbki cieplnej, urzadzenia z gazem neutralnym, kadzie do trawienia i walcownie na zimno.O ile forma ciagla jest z tasm bez kon¬ ca, wtedy walce formujace moga byc wbu¬ dowane w forme ciagla 5 (fig. 7).Walec formujacy o pustym czopie b po¬ siada plaszcz ci nasadzony na czop, aby woda chlodzaca c podplywala jaknajblizej do powierzchni walca (fig. 8). PLIn the current equipment for rolling metal, liquid metal is poured between rolls. Due to the low thermal conductivity inside the liquid metal, the dissipation of large amounts of heat from inside the molten metal to the surface of the rolls is inadequate in these devices. In addition, the metal is rolled vertically in these devices, so it was not possible to use direct further continuous horizontal rolling to obtain a finished finished product. To avoid these drawbacks, the stepping device according to the invention is used, given by example in the attached drawing, where fig. 1 shows a general scheme of this device, fig. 2, 3, 4, 6, 7 show various forms of continuous forms, fig. 5 shows a three-caliber continuous form for cast metal and Fig. 8 is a cross sectional view of a forming roll. From the metal reservoir (ladle, mixer, etc.), the molten metal is poured into the inclined trough 2 continuously. 3. This form is inclined at an angle greater than the friction angle of the molten metal against the walls of the continuous mold. The angle of inclination of the mold can be varied as required. In a continuous form, the feed rate can be varied continuously, depending on the time needed for solidification of the various thicknesses of the metal layers. In order to prevent the formation of a casting and liquidation structure, i.e. complete solidification and crystallization of the metal in a continuous form, the process only leads to cooling to the temperature of the beginning of solidification, so that from the continuous form the metal comes out partially solidified with a mixture of crystals and liquid metal, i.e. in a pasty state or with only slightly flaky outer layers and a still liquid center. After the solid solidifying metal has been removed from the mold, a sloped guide is given to the forming rollers 5. The inclined guide is to prevent it from crumbling or breaking. - solidify the metal layers completely and move them further between the rollers, because the metal layer gets between the rollers forming during solidification Cutting, and therefore with a low compression resistance, a very large crushing stage can be used here. The rotation of the forming rollers and the feed rate of the forming rollers are continuously adjustable and are mutually synchronized. The rollers are cooled both inside and outside. Continuous form as needed - can be uncooled, or cooled with water, oil, air and so on with simultaneous drying and varnishing to avoid adhesion of the solidifying agent thallium to the mold surface. The devices for drying and varnishing are marked in Fig. 1 with the numbers 0 and 7. For very thin metal layers, the form of a continuous line forms two endless metal bands: the upper and the lower (Fig. 2). It may also be the case that only one bottom tape is used, then the form of the continuous top is open. To limit the width of the cast metal layer on the continuous tapes, bounding tapes as high as the thickness of the layer are moved from the sides of the bottom tape. for thicker layers, instead of a continuous tape, molds are used which are still joined together so that the layer obtains a smooth and continuous cross-section (fig. 4). When a continuous mold is used for caliber rollers, the combined molds must have a given caliber for the metal to be poured. Such calibers 9 may be joined together several next to each other (FIG. 5). This form may also consist of four linked belts: upper, lower and two side bands. Then the forming rolls must also have the appropriate calibers. Immediately after the forming rolls there may be a suitable rolling mill 10 (Fig. 1) f which finally rolls metal in the form of sheets, wire, rods, pipes or other shapes. Continuous heat treatment furnaces, neutral gas equipment, pickling tanks and cold rolling mills may also be set up. As long as the continuous form is with endless belt, then the forming rolls may be incorporated in the continuous form 5 ( 7). A forming roller with a hollow trunnion b has a jacket placed over the trunnion so that the cooling water c flows as close to the surface of the cylinder as possible (Fig. 8). PL

Claims (3)

Zastrzezenia patentowe. 1. Urzadzenie do walcowania plynnego metalu, znamienne tym, ze posiada za zbiornikiem (1) na plynny metal i przed walcami formujacymi (5) forme ciagla (3) w kierunku zasadniczo poziomym, której kat nachylenia -a wzgledem poziomego kierunku jest regulowany zaleznie od wla¬ sciwosci wlewanego do tej formy metalu, przy czym szybkosc posuwu metalu w for¬ mie jest zsynchronizowana z szybkoscia obrotowa walców formujacych (5)1 przed którymi bezposrednio znajduje sie pro¬ wadnica nachylona (i) umieszczona na koncu wskazanej formy (3).Patent claims. 1. A machine for liquid metal rolling, characterized in that it has a continuous form (3) downstream of the molten metal container (1) and in front of the forming rolls (5) in a substantially horizontal direction, the angle of inclination -a of which with respect to the horizontal direction is adjustable depending on the the properties of the metal poured into this mold, the rate of advance of the metal in the mold is synchronized with the rotational speed of the forming rolls (5) 1 in front of which there is an inclined guide (i) placed at the end of the indicated mold (3). 2. Urzadzenie do walcowania plynnego metalu wedlug zastrz. 1, znamienne tym, ze forme ciagla tworzy tasma bez konca, lub tez przestrzen miedzy dwoma takimi tasmami, które moga z boków byc ujete równiez przez dwie organiczajace tasmy bez konca (fig. 2, 3, 4).2. Machine for liquid metal rolling according to claim The method of claim 1, characterized in that the continuous form forms an endless strip, or a space between two such strips, which can also be laterally enclosed by two endless strips (Figs. 2, 3, 4). 3. Urzadzenie do walcowania plynnego metalu wedlug zastrz. 1 i 2, znamienne tym, ze forma ciagla jest zaopatrzona w kalibrowany otwór lub szereg róznego ksztaltu kalibrowanych otworów, przez które wlewa sie i w których rozpoczyna krzepnac plynny metal. 4, Walec formujacy urzadzenia do wal¬ cowania plynnego metalu wedlug zastrz. 1 — 3, znamienny tym, ze posiada plaszcz (a) nasadzony na pusty czop (b)A aby wo¬ da (c) chlodzaca podplywala jaknajblizej do powierzchni walca. Inz. Zygmunt WusatowskiDo opisu patentowego Nr 33211 / h\'\\ \\\\V\) J o/ o/ -i Drukarnia Panstwowa Nr 1 w Warszawie. Zam. 541 PL3. A device for metal rolling according to claim The method of Claims 1 and 2, characterized in that the continuous form is provided with a calibrated hole or a series of differently shaped, calibrated holes through which the liquid metal is poured and in which the molten metal begins to solidify. 4, A roller forming a liquid metal rolling device according to claim 4 A method as claimed in any one of claims 1 to 3, characterized in that it has a jacket (a) placed over the empty plug (b) A so that the cooling water (c) flows as close as possible to the surface of the cylinder. Inz. Zygmunt Wusatowski To the patent description No. 33211 / h \ '\\ \\\\ V \) J o / o / -i State Printing House No. 1 in Warsaw. Order 541 PL
PL33211A 1945-08-20 Liquid metal rolling equipment. PL33211B1 (en)

Publications (1)

Publication Number Publication Date
PL33211B1 true PL33211B1 (en) 1946-05-31

Family

ID=

Similar Documents

Publication Publication Date Title
TWI547323B (en) Continuous casting casting and steel continuous casting method
US3833047A (en) Process and apparatus for supplementary cooling of the center of a continuously cast metal bar
CA1296505C (en) Continuous casting of thin metal strip
US3794106A (en) Plant for producing a metal band from a melt
PL33211B1 (en) Liquid metal rolling equipment.
US3593778A (en) Continuous casting apparatus
DE3925243C2 (en)
JPS61123450A (en) Continuous casting device of metallic strip
CN114054710A (en) A Method for Improving Center Quality of Large Section Rectangular Continuous Casting Slab
US3468361A (en) Continuous metal casting method
JPS61123449A (en) Continuous casting method of metallic strip
JPS561251A (en) Continuous casting method
GB1537490A (en) Apparatus for producing completely recrystallized metal sheet
UA63941C2 (en) Method for manufacturing the thin strip of stainless steel
US3570587A (en) Apparatus for continuously casting and cooling while advancing through a body of liquid coolant
JPS5841656A (en) Continuous casting device for thin sheet
CS216925B2 (en) Method of continuous casting of the steel product
FI90834B (en) Method and apparatus for continuous casting of thin metal products between two rollers
DE60303387T2 (en) METHOD AND DEVICE FOR REGULATING TAPE TEMPERATURE IN A CONTINUOUS BELT PLANT
JPH03193245A (en) Method for continuously casting strip
CS216668B2 (en) Method of making the compact metal semiproduct and device for executing the same
JPS55109549A (en) Continuous casting method of sheet
SU131663A1 (en) Device for the manufacture of long reinforced building products
SU128580A1 (en) The method of obtaining bimetallic products directly from liquid metal
DE2117647C3 (en) Process for semi-continuous continuous casting of metals