EP0490034A1 - Verfahren und Vorrichtung zur Herstellung eines endabmessungsnahen Metallbandes - Google Patents

Verfahren und Vorrichtung zur Herstellung eines endabmessungsnahen Metallbandes Download PDF

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Publication number
EP0490034A1
EP0490034A1 EP91116399A EP91116399A EP0490034A1 EP 0490034 A1 EP0490034 A1 EP 0490034A1 EP 91116399 A EP91116399 A EP 91116399A EP 91116399 A EP91116399 A EP 91116399A EP 0490034 A1 EP0490034 A1 EP 0490034A1
Authority
EP
European Patent Office
Prior art keywords
channel
molten metal
distributor
cooling belt
metal
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.)
Withdrawn
Application number
EP91116399A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hilmar R. Dr.-Ing. Müller
Georg Dr.-Ing. Kehse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wieland Werke AG
Olin Corp
Original Assignee
Wieland Werke AG
Olin Corp
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 Wieland Werke AG, Olin Corp filed Critical Wieland Werke AG
Publication of EP0490034A1 publication Critical patent/EP0490034A1/de
Withdrawn legal-status Critical Current

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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
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/064—Accessories therefor for supplying molten metal

Definitions

  • the invention relates to a process for the continuous production of a metal strip close to its final dimensions, in which molten metal is poured onto an endless, rotating cooling belt and solidified.
  • the main problem is to supply the molten metal to the circulating cooling belt as evenly as possible, and that the feeding should take place with as little turbulence as possible, and the molten metal should receive approximately the same speed as the cooling belt.
  • the outflow quantity of the molten metal is regulated via the gas pressure in the distributor, the distributor being connected to a vacuum chamber.
  • Relatively thick walls are required for the distributors.
  • the wall thickness of the distributor base essentially determines the metallostatic pressure that builds up at the level of the pouring opening of the channel leading through the distributor wall. This pressure is greater than that required for the metal supply when the outlet is unimpeded.
  • the invention has for its object to regulate the outflow speed of the molten metal so that - with avoidance of negative pressure - the metal flow is as laminar as possible and the speed of the molten metal and the cooling belt roughly match.
  • the braking of the molten metal in a narrow, vertically arranged channel is known for example from EP-OS 0.374.260.
  • the channel itself ends in a mold, the broad sides of which are formed by endless belts running from top to bottom and the narrow sides of which are formed by movable side boundaries.
  • Such a mold is not suitable for applying the melt to a horizontal, moving cooling belt.
  • the braking effect for the molten metal in the channel is achieved by means of two so-called "linear induction motors" opposite on the broad sides of the mold.
  • lines 10-15 of EP-OS 0.374.260 it is stated, however, that a complete braking of the metal melt cannot be achieved due to the high metallostatic pressure.
  • the inventor of this publication has not recognized that the for the casting of particularly close to final dimensions, ie strong throttling of the speed, particularly for thin metal strips, is not possible because, due to its vertical arrangement of the electromagnetic throttle, it has to accept the following disadvantage: if the electromagnetic throttle is too weak, it can be extended in the direction of the flow at which Arrangement according to the EP-OS so vertically downwards. This gives you the opportunity to increase the throttle force by attaching more coils. However, it is overlooked that the lengthening of the channel in the vertical direction also causes an increase in the metallostatic pressure, so that even increasing the throttle many times over cannot allow complete braking.
  • a range of 10 ° to 50 ° should preferably be selected for the angle of inclination ⁇ of the channel.
  • the metal melt is braked over the entire length of the channel according to a special embodiment of the invention.
  • the electromagnetic field generating the electromagnetic force be applied from a direction that lies above the channel.
  • Fig. 1 shows a casting device for the continuous production of near-dimensional metal strip 1, consisting of an endless cooling belt 2, which rotates via transport rollers 3, 4, a distributor 5 for molten metal 6 and an adjoining, inclined channel 7 (angle of inclination ⁇ ).
  • a supply vessel 8 is connected upstream of the distributor 5.
  • the molten metal 6 flows through the channel 7 arranged above the cooling belt 2, is poured onto the cooling belt 2, which rotates in the direction of the arrow, and solidifies there.
  • the channel 7 has a rectangular cross section; the side walls are designated 9.10 and the upper and lower walls 11 and 12 respectively.
  • the pouring opening 7 'of the channel 7 thus consists of a narrow gap, the length of which is as wide or narrower than the width of the metal strip 1 to be cast (see FIG. 3).
  • a linear induction motor 13 (shown schematically) is arranged along its length, which is connected as an electromagnetic brake, so that the metal melt 6 flowing in the channel 7 is braked by an electromagnetic force counteracting gravity.
  • the flow of the molten metal 6 in the channel 7 can be regulated so that the speed of the molten metal 6 and the cooling belt 2 roughly match. From the detailed section according to FIG. 2 it can be seen that a magnetic yoke 14 is arranged below the channel 7 for concentrating the electromagnetic field. Its cooling is 15.
  • Insulation 16 is provided between the side walls 11, 12 of the channel 7 and the induction motor 13 or the magnetic yoke 14.
  • the side walls 9, 10 consist of conductive material (for example graphite).
  • the upper and lower walls 11, 12 of the channel 7 are preferably made of non-conductive material (for example silicon carbide SiC).
  • additional conductive plate material 17 (for example made of graphite) can be introduced into the channel 7, which is heated under the influence of the electromagnetic force.
  • the casting device described is suitable, for example, for the continuous production of a brass strip 1 (CuZn30) measuring 5 mm ⁇ 400 mm.
  • the belt 2 is endless and is guided over rollers 3, 4, the diameter of which is 1.2 m.
  • a steel strip 2 is used with a thickness of 1 mm, with a length between the vertices of the rollers 3, 4 of 3600 mm and with a width of 850 mm.
  • the width of the cast strip 1 is specified by laterally moving boundaries (not shown).
  • the melt 6 is cooled indirectly with water via the underside of the conveyor belt 2.
  • the take-off speed is 20 m / min.
  • Brass strips 1 with a perfect surface quality and with a low-segregation and fine-grained structure can be obtained as a product.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP91116399A 1990-12-14 1991-09-26 Verfahren und Vorrichtung zur Herstellung eines endabmessungsnahen Metallbandes Withdrawn EP0490034A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4039959A DE4039959C1 (enrdf_load_stackoverflow) 1990-12-14 1990-12-14
DE4039959 1990-12-14

Publications (1)

Publication Number Publication Date
EP0490034A1 true EP0490034A1 (de) 1992-06-17

Family

ID=6420328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91116399A Withdrawn EP0490034A1 (de) 1990-12-14 1991-09-26 Verfahren und Vorrichtung zur Herstellung eines endabmessungsnahen Metallbandes

Country Status (5)

Country Link
EP (1) EP0490034A1 (enrdf_load_stackoverflow)
JP (1) JPH0523799A (enrdf_load_stackoverflow)
CA (1) CA2055741A1 (enrdf_load_stackoverflow)
DE (1) DE4039959C1 (enrdf_load_stackoverflow)
FI (1) FI915859A7 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999019098A1 (de) * 1997-10-13 1999-04-22 Sms Demag Ag Verfahren und giessdüse zum angiessen eines endabmessungsnahen metallbandes
CN103025456A (zh) * 2010-07-31 2013-04-03 Sms西马格股份公司 用于带式铸造的熔体交付系统
CN106216642A (zh) * 2016-09-18 2016-12-14 常州机电职业技术学院 递宽齿距行波磁场铸造设备及铸造方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4344953C2 (de) * 1993-12-27 1996-10-02 Mannesmann Ag Verfahren und Vorrichtung zum Angießen eines endabmessungsnahen Metallbandes
DE19711116C2 (de) * 1997-03-05 1999-05-12 Mannesmann Ag Verfahren und Vorrichtung zum Gießen von dünnen Strängen
KR100836529B1 (ko) * 2007-01-15 2008-06-10 (주)태진기술 정전압 발생회로
KR100813200B1 (ko) * 2007-01-15 2008-03-13 (주)태진기술 정전압 발생회로
CN111545716A (zh) * 2020-05-06 2020-08-18 浙江大学 一种速凝铸带用中间包装置及速凝铸带的铸造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540217B2 (de) * 1975-09-10 1979-04-12 Aeg-Elotherm Gmbh, 5630 Remscheid Verfahren zum Inbetriebsetzen elektromagnetischer Förderrinnen zum Transport flüssiger Metalle und zur Durchführung des Verfahrens geeignete Förderrinne
DE3638901A1 (de) * 1985-11-15 1987-05-21 Occ Co Ltd Verfahren zum kontinuierlichen giessen eines metallbands oder -streifens
US4836271A (en) * 1987-03-12 1989-06-06 Mannesmann Aktiengesellschaft Casting apparatus for casting metal strip, in particular, steel strip
DE3802203A1 (de) * 1988-01-26 1989-08-03 Voest Alpine Ag Stranggiessanlage
US4936372A (en) * 1985-05-10 1990-06-26 Olsson Erik Allan Apparatus for continuous casting of metal products
EP0374260A1 (en) * 1988-05-16 1990-06-27 Nippon Steel Corporation Injector for high speed thin continuous casting machine and pouring control method
DE3810302C2 (enrdf_load_stackoverflow) * 1988-03-24 1990-07-05 Mannesmann Ag, 4000 Duesseldorf, De
US4974661A (en) * 1988-06-17 1990-12-04 Arch Development Corp. Sidewall containment of liquid metal with vertical alternating magnetic fields

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540217B2 (de) * 1975-09-10 1979-04-12 Aeg-Elotherm Gmbh, 5630 Remscheid Verfahren zum Inbetriebsetzen elektromagnetischer Förderrinnen zum Transport flüssiger Metalle und zur Durchführung des Verfahrens geeignete Förderrinne
US4936372A (en) * 1985-05-10 1990-06-26 Olsson Erik Allan Apparatus for continuous casting of metal products
DE3638901A1 (de) * 1985-11-15 1987-05-21 Occ Co Ltd Verfahren zum kontinuierlichen giessen eines metallbands oder -streifens
US4836271A (en) * 1987-03-12 1989-06-06 Mannesmann Aktiengesellschaft Casting apparatus for casting metal strip, in particular, steel strip
DE3802203A1 (de) * 1988-01-26 1989-08-03 Voest Alpine Ag Stranggiessanlage
DE3810302C2 (enrdf_load_stackoverflow) * 1988-03-24 1990-07-05 Mannesmann Ag, 4000 Duesseldorf, De
EP0374260A1 (en) * 1988-05-16 1990-06-27 Nippon Steel Corporation Injector for high speed thin continuous casting machine and pouring control method
US4974661A (en) * 1988-06-17 1990-12-04 Arch Development Corp. Sidewall containment of liquid metal with vertical alternating magnetic fields

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HANDBUCH DES STRANGGIESSENS, 1958, Aluminium-Verlag GmbH, DÙsseldorf DR. ERHARD HERMANN "5. Rege- lung der Metallzufuhr" Seiten 344-345 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999019098A1 (de) * 1997-10-13 1999-04-22 Sms Demag Ag Verfahren und giessdüse zum angiessen eines endabmessungsnahen metallbandes
CN103025456A (zh) * 2010-07-31 2013-04-03 Sms西马格股份公司 用于带式铸造的熔体交付系统
CN106216642A (zh) * 2016-09-18 2016-12-14 常州机电职业技术学院 递宽齿距行波磁场铸造设备及铸造方法

Also Published As

Publication number Publication date
JPH0523799A (ja) 1993-02-02
CA2055741A1 (en) 1992-06-15
DE4039959C1 (enrdf_load_stackoverflow) 1992-01-23
FI915859A7 (fi) 1992-06-15
FI915859A0 (fi) 1991-12-12

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