EP0138059A1 - Procédé et dispositif pour couler une bande métallique entre deux cylindres - Google Patents

Procédé et dispositif pour couler une bande métallique entre deux cylindres Download PDF

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Publication number
EP0138059A1
EP0138059A1 EP84110872A EP84110872A EP0138059A1 EP 0138059 A1 EP0138059 A1 EP 0138059A1 EP 84110872 A EP84110872 A EP 84110872A EP 84110872 A EP84110872 A EP 84110872A EP 0138059 A1 EP0138059 A1 EP 0138059A1
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EP
European Patent Office
Prior art keywords
rolls
molten metal
metal
twin
casting machine
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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.)
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Application number
EP84110872A
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German (de)
English (en)
Inventor
Tadashi Nishino
Tomoaki Kimura
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Hitachi Ltd
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Hitachi Ltd
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Publication date
Priority claimed from JP17383683A external-priority patent/JPS6064753A/ja
Priority claimed from JP17383783A external-priority patent/JPS6064754A/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of EP0138059A1 publication Critical patent/EP0138059A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • B22D11/0622—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • 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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • 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
    • B22D11/16—Controlling or regulating processes or operations

Definitions

  • This invention is related to the continuous casting technology by twin rolls which manufactures the thin band metal from molten metal, especially to the manufacturing method and equipment by the twin roll type casting machine which is suitable for the manufacture of the thin band metal of excellent material quality.
  • the Bessemer method As the manufacturing method of the thin band metal, the Bessemer method, which is described on P.9-P.21 in “Handbuch des Stranggiessens” by Dr. Erhard Herrmann (Published by Aluminium Verlag GmbH, 1958), or the method described in Japanese patent laid-open report, Sho55-No. 109549, is well known. Especially, the Bessemer method is utilized in the non-ferrous domain. But, it is not utilized in the ferrous domain, which has high melting point and slow solidifying rate, because the leakage of molten metal or the blocking by solidification easily happens.
  • the solidifying rate depends on the coefficient of heat transfer ( ⁇ ) between the cooling mold and the molten metal, and the thermal conductivity (X) of molten metal, as follows,
  • ⁇ varies practically with the condition (roughness, and the kind and thickness of painting) of the surface of a cooling roll. Consequently, the thickness of solidification is not constant, even if the cooling time to is constant, so that solidified cast metal can not always by tightly rolled between two cooling rolls. Therefore, it is a practical obstacle of quality in case of the continuous casting of band metal, that the material quality is unequal.
  • This invention is related to the manufacturing method of band metal by the twin roll type casting machine, in which molten metal is poured between a couple of rotating rolls or on the either roll and cooled by the twin rolls to be made solidified crust on the surface of each roll and compressed to the desired thickness between the rolls and thus the band metal is continuously manufactured.
  • the manufacturing method of band metal by the twin roll type casting machine in this invention is characterized as follows. It controls the solidification time of molten metal in the solidification range on the above roll so that the detected compressive load or equivalent quantity of state, acting on the above rotating rolls by the rolling reaction of each crust solidified on the above both rolls when rolled between them, may be set to the fixed value.
  • This invention is also a manufacturing equipment for band metal by the twin roll type casting machine which is provided with a nozzle pouring molten metal and with a couple of rotating rolls. These rolls compress the solidified crust, which is formed by cooling the molten metal poured from the above nozzle, and can manufacture a band metal continuously.
  • This manufacturing equipment for a band metal by the twin roll type casting machine is characterized as follows. It is provided with a detector which detects the compressive load or the equivalent quantity of state when the above rolls compress the solidified crust of molten metal formed on the each side of rolls and it has a controlling system which regulates the solidification time of molten metal in solidification range, which is formed between the above twin rolls, comparing the detected value from the above detector with the target value.
  • Fig. 1 shows the outline of twin roll type continuous casting machine for the thin band metal as an example for the embodiment of this invention.
  • Fig. 2 is the plan of Fig. 1
  • Fig. 3 shows explanatorily the formation of solidified crust and compression between the cooling rolls in Fig. 1.
  • Fig. 4 shows a tundish and its surroundings in the other example of this invention.
  • Fig. 5 and Fig. 6 are the outlines of the twin roll type casting machine in the other examples of this invention.
  • Fig. 7 is the outline of the twin roll type continuous casting machine for thin band metal in the one of other examples of this invention.
  • Fig. 8 is the plan of Fig. 7.
  • the compressive force at the compressive point is determined by the deformation resistance of cast metal (solidified crust) and the thickness size of the cast metal formed between the both rolls.
  • the thickness of the cast metal is thicker in case of fast cooling, while it is thinner in case of slow cooling.
  • the compressive force at the narrowest gap spot between twin rolls increases as the thickness of cast metal does.
  • the deformation resistance of the cast metal is essentially influenced by the internal temperature of the cast metal and it is strong in case of fast cooling while it is weak in case of slow cooling. Therefore, the internal state or the thickness of the cast metal on the long side, which is formed between the rolls, can be indirectly detected by the strength of the compressive force. Namely, when the reaction froce of the cast metal acting on the cooling rolls in time of compression or the rotary torque of the cooling rolls is detected, the too large value of detection means that the solidifying rate is fast and the too small value means that the solidifying rate is slow.
  • the total thickness of cast metal which is formed on the each side of rolls and reaches the compressive point, can be kept constantly to the desired level in control.
  • the thickness of the solidified crust on the short side is deformed by the compression at the compressive point. In this case, the compressive load increases as much, and therefore the accurate size of the thickness of solidified crust on the longside can not be calculated backward from the compressive load.
  • the mold is to be constructed so that the refractory of small thermal conductivity, which is difficult to form the solidified crust, may to applied to the short side, while such material as metal of large thermal conductivity may be applied to the long side.
  • the solidified crust which is formed along the long side or the surface of the cooling rolls, is compressed, and the compressive load of the cooling rolls, which is caused by the compression, can be detected.
  • the thin band metal of excellent material quality is continuously manufactured by controlling the solidification time of the molten metal in the solidification range between the cooling rolls within the adaptive value. And the above solidification time is well controlled by controlling the rotation speed of the rolls.
  • the above controlling method gives the further effect avoiding the influence by the fluctuation of the thickness of cast metal at the same time.
  • the surface control which controls the discharge of the molten metal by the detection of the reaction force to the rolls or the rotation torque above mentioned, is suitable for varying the compressive load as little as possible by varying the surface of the molten metal in the pool (or the depth of the pool of the molten metal).
  • Fig. 1 and Fig. 2 the composition of the continuous casting machine is shown as an example of this invention.
  • Fig. 3 is a detail drawing showing the compressed state of the solidified shell in the above machine.
  • the molten steel is properly poured from a ladle., which is not shown, to the tundish 1, and from there into the pool of the molten metal through the immersion nozzle 2 which is directly attached to the tundish 1.
  • the pool of the molten metal is surrounded with the cooling rolls 3, 3' composing twin rolls and the fixed plates composing the short sides 13, 13' in the face of these both cooling rolls which are made of the refractory of small thermal conductivity.
  • the cooling rolls 3, 3' are composed in order to stop the rise of temperature of the rolls by the external forced cooling of cooling water injection equipments 61, 61' sprinklin on the surface of the rolls, or by the internal forced cooling with the flow of cooling liquid in the rolls which is not shown
  • the cooling water is supplied from the cooling water tank 66 to the injection equipments 61, 61' through the pumps 65, 65' and the control valves 64, 64'.
  • the both ends of cooling rolls are revolvingly supported by the bearing boxes 7, 7' and 8,.8', which are fixed in the housings 12, 12'.
  • the both cooling rolls 3, 3' are driven respectively in the direction of arrow a by the driving moter 22, reduction gear 21 and gear distributor 20 in sequence.
  • the thin band metal 6 is formed from the molten metal in the pool to be cooled and solidified through the gap of the cooling rolls 3, 3', and pulled out by the pinch rolls 4, 5, and carried out to the next process.
  • the cooling rolls 3, 3' are distributed in order to have a gap between them, whose distance is equal to the desired thickness of the thin band metal 6 (2-6 mm). They are located so that the cooling roll 3 may be fixed by inserting the liners 11, 11' between the bearing boxes 7, 7' and housings 12, 12', while the bearing boxes 8, 8' of the cooling roll 3' are located behind the load detectors 9, 9' and detect the compressive reaction of the solidified cast metal.
  • the cylinders 14, 14' are located respectively between bearing boxes of each side, namely between 7 and 8, and between 7' and 8', and regulate the gap between the both bearing boxes for setting the narrowest gap between these rolls.
  • Fig. 3 shows the solidification state of the molten metal.
  • the solidification of the molten metal starts at the spot d, where the surface of the molten metal 25 touches the cooling roll 3 (or 3'), and the cooling range L is from the spot d to the spot b.
  • the formation, solidification and compression of the solidified crust 24, 24' is completed in this range L.
  • the thickness of solidification S is not always constant by the fluctuation of the surface of the molten metal 25 and that of the coefficient of solidification k. Namely, the thickness of-solidification S is the function of the compressive force P or torque T. S «P, T.
  • the compressive force P (or torque T) should by set to the fixed value by regulating the circumferential speed of the cooling rolls 3, 3' for the suitable rolling.
  • the circumferential speed v of the cooling rolls 3, 3' is increased in case of strong compressive force P (or torque T), while the circumferential speed v is diminished in case of weak compressive force P (or torque T).
  • the compressive force P is nearly equal to the force compressing the solidified crust on the long sides or the sides of the cooling rolls, because the solidified crust grows little or very thinly on the short sides, as the material of the parts utilized for the short sides 13, 13' has much smaller thermal conductivity than the cooling rolls.
  • the load detecters 9, 9' detect the compressive reaction force through the bearing boxes 8, 8' at the both sides of the cooling roll 3', one of the both rolls 3, 3'.
  • the rotating torque T can be detected by the driving shafts 62, 62' of the cooling rolls or by the amperage of the driving motor 22, though this method is not illustrated.
  • This detected values are added up by the adder 16 and compared with the objective values Po, To from the setup unit 15 by the comparator 17.
  • the driving speed of the cooling rolls 3, 3' is regulated so that the deviations AP, ⁇ T, which are got as above described, may become zero.
  • the directive signal is output by the arithmetic unit 18 according to these deviations and given to the driving motor 22 of the cooling rolls 22 and the driving motor 23 of the pinch roll 5 which pulls out the thin band metal 6.
  • the speed of the driving motor 22 and the speed of the driving motor 23 are regulated to synchronize so that the compressive force P or torque T may be always kept in the objective range.
  • torque T is in proportion to the product of the compressive force P by the length 1 of the compression range of the both solidified crusts 24, 24', T and P are in linear relationship, therefore the compressive force can be estimated by the either value of them.
  • the length 1 of the compression range of the solidified crust can be calculated backward from the measured value of P or torque T by measuring km previously.
  • the length.1 of the compression range can be calculated backward from the measured value of compressive force P or torque T, therefore if the circumferential speed v of the cooling rolls 3, 3' is regulated to keep P or T constant, the length 1 of the compression range of the solidified crust can be kept to the objective value under control.
  • the mean deformation resistance km of the material is 0.5-3 kg/mm 2 , and it depends on the kinds of cast metal.
  • Fig. 1 and Fig. 2 the controlling technology of the circumferential speed v of the cooling rolls 3, 3' is shown as the regulating method of the compressive force P of the solidified crust.
  • the control of the surface level H of the molten metal in the pool of the molten metal can be the same effective measures as the above method.
  • Fig. 4 shows the above variant example of this invention centering on the tundish.
  • the flow control valve 30 is assembled between the tundish 1 and immersion nozzle 2.
  • the control valve 30 regulates the quantity of the molten metal poured through the above nozzle 2 into the pool of the molten metal, which is surrounded with the twin cooling rolls and the fixed plates 13, 13' on the short sides (not illustrated).
  • This flow control valve 30 is assembled by the sliding plate 31 with a port and the servo valve 32 which controls the area of the port of sliding plate 31 connecting with the above nozzle 2 by regulating the sliding distance of the above sliding plate 31.
  • the directive signal to the above servo valve 32 is similar to what is shown in Fig. 2.
  • the detected valve of the compressive force P (or the driving torque T of the cooling roll) of the solidified crust by the load detectors 9, 9' is added up by the adder 16 and compared with the objective valve from the setup unit 15 by the comparator 17. And the height H of the surface level 25 of the molten metal is regulated so that the difference between the total detected value and the objective value may become zero.
  • the directive signal is output from the arighmetic unit 38 according to this difference and given to the servo valve 32 of flow control valve 30 so that the height of the surface level 25 of the molten metal may be controlled and the compressive force P or torque T may be always kept in the objective value under control.
  • the narrowest gap e of the cooling roll 3, 3' is regulated in order to be able to prevent the leak of the molten metal at the starting time and in the time from starting to standing.
  • the roll gap detector 100 for measuring the narrowest gap between the rolls 3, 3' is set in the housing 12.
  • the arithmetic unit 110 is set, which calculates the 5 thickness S of the solidified crust 24 at the narrowest gap between the rolls, as shown as the spot A in Fig. 3, from the formula (1) according to the output of the adder 16 adding the detected value by the detector 9, 9'.
  • the arithmetic unit 120 is set to calculate the compressibility of the solidified crust by the twin rolls 3, 3' from both the output S of the arithmetic unit 110 and the output e of the roll gap detector 100 according to the formula (6) as described later.
  • the arithmetic unit 140 is set to output the operational routine corresponding with the equivalence of the variation of the roll gap according to the desired value from the setup unit 130 in order to keep the output « of the arithmetic unit 120 to the plus desired value.
  • the control valve 150 is set to control the quantity of the working oil supplied to the oil-hydraulic cylinder 14 regulating the gap of the rolls 3, 3' according to the output signal from the arithmetic unit 140.
  • the operational method of these controlling equipments for the gap of roll is explained in the example of Fig. 7 and Fig. 8 as later described.
  • 180 is the speed detector to detect the circumferential speed of the roll.
  • the load torque equals the total of the both torque of the rolls and the belts as the torque is distributed to fhe both sides of the rolls and the belts.
  • this invention is also available in case that a belt winds arounds one of the two rolls while the other is without a belt.
  • this invention can be effective in case that a plate material is manufactured in the way that the cast metal., which is formed on the both side of a pair of rolls directly or through the other parts such as a belt on the roll at the narrowest gap between a pair of rolls, is compressed.
  • this invention can be also available for all cases pouring in every direction such as Hunter method pouring horizontally on the tw;n rolls laid horizontally or a method pouring upward from under the twin rolls.
  • Fig. 6 shows another available example of this invention.
  • the molten metal is poured from nozzle 53 on the larger roll 50 of a pair of rolls 50, 51 of different size, and the solidified crust 54, which contains half solidified or yet molten metal, is formed and thereafter it is compressed and deformed between the rolls 50, 51 to be made a thin plate 55.
  • this invention can be effectively applied, because the state of solidification of the solidified crust 54, which comes to the compression spot A of the narrowest part between the rolls, can be made homogeneous if the compressive load is measured at the spot A.
  • the thin band metal of excellent internal quality being 1-6 mm thick and 500-1,600 mm wide, could be continuously and stably manufactured at the casting speed of 10-100 m/min.
  • the solidified crust is compressed which is formed only on the surface of the rolls corresponding to the long sides but is not formed on the short sides, therefore, the thickness of the solidified crust formed on the surface of the rolls can be exactly estimated by measuring the compressive load, which is the compressive force or compressive torque at the compression spot, and is set to be a objective value for the control of the operation. Consequently, the stable operation of the continuous casting for thin band metal has been realized, as such accidents as the leak of the molten metal and the slip etc., which used to be the technical problems so far, have not happened.
  • This invention gives the effect that the thin band metal of excellent internal quality can be stably and continuously manufactured, keeping the condition for the compression of the solidified crust constant under control against the fluctuation of the solidifying rate of the molten steel.
  • This casting machine is not only as effective as the above casting machines, but also it prevents the leakage of the molten metal during casting. Frist of all, the fundamental substance of this invention is explained, before introducing this example.
  • the gap e is set to be as narrow as about 0-0.5 mm at the narrowest spot A of the rolls. As shown in Fig. 3, at the beginning of casting. If the gap e at the spot A is small, the molten metal does not leak out from the gap of rolls or leaks very little, therefore the pool 25 of the molten metal can be easily made up.
  • the molten metal is cooled on the surface of the both side of rolls 3.,.3', and as the solidified crust is formed on each side of the rolls, the gap e between the rolls is gradually opened to the desired value according to the formation of the pool 25.
  • the thickness of the solidifications S of the molten metal, which is cooled on the surface of a roll, can be given by the following formula corresponding with the above (1).
  • L and H is given in the following formula.
  • the molten metal should satisfy the next formula with the roll gap e at the spot A, so as not to leak out from the narrowest gap spot A.
  • the roll gap e at the spot A is set to be narrow at the beginning of casting when the depth of the pool H is small and this is operated on condition that the formula (3) is satisfied.
  • the thickness of the solidified crust 2S is given by the next expression.
  • AS represents the compressed quantity of the solidified crust at the narrow gap spot of twin rolls.
  • ⁇ in the next expression is the compressibility of the solidifiied crust by the twin rolls.
  • the molten metal which is not yet solidified, remains past the narrow gap spot of twin rolls. Namely, the molten metal flows out at the beginning of pouring, and if ⁇ value is minus, the molten metal remains past the narrow gap spot even after the plate has been formed, and the thin solidified crust swells by the static pressure of the molten metal, and therefore the excellent product can not be gained.
  • ⁇ in the expression (6) need keep to be plus as above described and it is preferable to be as constant as possible. Because, if ⁇ becomes large, the quantity to be compressed AS becomes large and therefore the large load is needed for the rolls to compress between, and if ⁇ increases all the more, the slip accident happens.
  • the value of « in the expression (6) can be kept constant under control against the variable depth of pool H, if the roll gap e is properly controlled to change according to the variation of the pool depth H, or the circumferential speed of roll v is also regulated with e so that the value of « may be plus constant.
  • the roll gap is widened to the objective opening, controlling in the expression (6) so as to be the desired plus value.
  • the pool depth H of the expression (6) is kept to a certain value of upper limit in order to make the most of the twin roll type casting machine. Then, the circumferential speed of rol v need be controlled so that the value of ⁇ of the expression (6) may be the desired plys value, in order to move the location of the rolls to make a roll gap e, corresponding to the desired thickness t. Because, the molten metal remains past the narrow spot of rolls as above described and the plate, which swells by the static pressure of the molten metal., is manufactured, if the value of ⁇ is minus. In the special case, the roll gap e may be regulated by moving the rolls under the control of the pool depth H as well.
  • ⁇ is selected as follows according to the various objects lest the molten metal should remain past the narrow gap spot A of rolls in the Fig. 2.
  • ⁇ 1 is selected as follows.
  • ⁇ 2 need be controlled to keep the value of ⁇ constant in order to equalize the quality of the rolling structure.
  • Fig. 7 is the front view
  • Fig. 8 is the plan of Fig. 7.
  • the molten metal is poured from the nozzle 2 into between the two cooling rolls 3, 3' so that the pool 25 of molten metal is made up.
  • Each flange 13a, 13a' is assembled around the two cooling rolls 3, 3' as the part of short side, lest the molten metal should leak out of the both ends of the rolls.
  • the location of these flanges 13a, 13a' is regulated in the axial direction by the ring nuts 160, 160' so that the each end-face of the flanges 13a, 13a' may tightly touch the each end-face of the rolls 3, 3'r"
  • These rolls 3, 3' are borne by the bearing boxes 7, 7' and 8, 8' in the housings 12, 12', and either roll, e.g. roll 3' is fixed to the housing 12, 12' through the load cells 9, 9'.
  • the arithmetic unit 110 calculates the thickness S of the solidified crust 24 of the molten metal at the narrowest spot A between the rolls, according to the expression (1)' with the outputs of the speed detector 180 and the adder 16 which adds the detected values of this loar cells 9, 9'. Then, the arithmetic unit 120 calculates the compressibility « of the solidified crust by the twin rolls at the narrowest spot A, by the inputs of the above S and the value of gap from the detector 100 of roll gap. And, the arithmetic unit 140 is composed which calculates the operational quantity to regulate the optimum value of roll gap according to the setup value of the setup unit 130 of compressibility, in order to keep the above calculated compressibility to the desired plus value. Finally, as the motor 14a is operated according to the output of the above arithmetic 140, the value of the narrowest gap can be always kept to the optimum value under control.
  • the spring 155 is set between the bearing boxes of two rolls 3, 3',. and the motor 14a, which comprises the moving equipment 14 against the spring tension, rotates the worm wheel 14e through the coupling 14C and the shaft 14d.
  • the worm wheel moves the screw 14f, which moves the bearing box 7 to the neighboring bearing box 8 through the pin 14g.
  • the gap e between rolls shown in Fig. 8 is set to be about 0-0.5 mm before the bginning of the pouring.
  • the motor 14a starts to move at the beginning of pouring and regulates the gap e slowly to be a certain size of opening.
  • the automatic control method of the roll gap e regulating with the passage of time is preferably applied as follows.
  • the first method when the solidified crust 24, which is formed between the both sides of rolls 3, 3', begins to be compressed at the narrowest spot A of the gap between the rolls, the compression exerts the compressive load. As the compressive load, the compressive force P, which parts the rolls 3, 3', and the torque T, which drive the rolls 3, 3', are exerted.
  • the compression length 1 can be calculated backward by either P or T.
  • the compressive state of the solidified crust 24 at the spot A in Fig. 3 is estimated.
  • the compressive state can be estimated as well by measuring the driving torque of the rolls 3, 3'.
  • the value of gap between the rolls is controlled by regulating the location of the rolls so as to keep the compressibility « of the solidified crust to the desired plus value.
  • the gap between the rolls may as well be regulated estimating the compressive state by measruing the compressive load.
  • the circumferential speed of roll can be regulated at the same time.
  • the second method is as follows, though it is not illustrated.
  • the opening of gap is regulated by estimating the thickness of the solidified crust according to the above expressions (1) and (2) measuring the height H of the surface of the pool 25.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP84110872A 1983-09-19 1984-09-12 Procédé et dispositif pour couler une bande métallique entre deux cylindres Withdrawn EP0138059A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP17383683A JPS6064753A (ja) 1983-09-19 1983-09-19 双ロ−ル式鋳造機の鋳造方法及びその装置
JP173837/83 1983-09-19
JP173836/83 1983-09-19
JP17383783A JPS6064754A (ja) 1983-09-19 1983-09-19 薄帯板の連続鋳造方法及び装置

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EP0138059A1 true EP0138059A1 (fr) 1985-04-24

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KR (1) KR850002785A (fr)

Cited By (15)

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DE3612549A1 (de) * 1985-07-06 1987-01-15 Hitachi Shipbuilding Eng Co Verfahren und vorrichtung zur regelung einer kontinuierlich arbeitenden giesseinrichtung fuer duenne metallstreifen
EP0228038A1 (fr) * 1985-12-24 1987-07-08 Aluminum Company Of America Règlement du calibre en circuit fermé dans une coulée continue entre rouleaux
EP0250145A2 (fr) * 1986-06-09 1987-12-23 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Installations de coulée continue
DE3731781A1 (de) * 1987-09-22 1989-03-30 Vacuumschmelze Gmbh Vorrichtung zum herstellen eines bandfoermigen metallstranges
EP0322482A1 (fr) * 1986-07-17 1989-07-05 Max-Planck-Institut für Eisenforschung GmbH Dispositif de fabrication d'une feuille apte à être laminée à partir d'un métal liquide
US4976304A (en) * 1986-07-17 1990-12-11 Max-Planck-Institut Fur Eisenforschung Gmbh Apparatus for manufacturing rollable sheet from metal melts
US4987949A (en) * 1988-07-29 1991-01-29 Hitachi Zosen Corporation Protective cover for surface of molten steel used in continuous casting apparatus
EP0411962A2 (fr) * 1989-08-03 1991-02-06 Nippon Steel Corporation Dispositif et procédé de commande d'une installation de coulée continue entre rouleaux
EP0572795A1 (fr) * 1992-05-27 1993-12-08 DANIELI & C. OFFICINE MECCANICHE S.p.A. Confinement latéral annulaire pour machine de coulée continue entre rouleaux
EP0719607A1 (fr) * 1994-12-29 1996-07-03 USINOR SACILOR Société Anonyme Procédé de régulation pour la coulée continue entre cylindres
FR2738760A1 (fr) * 1995-09-19 1997-03-21 Ishikawajima Harima Heavy Ind Coulee d'une bande de metal
US5727127A (en) * 1995-03-09 1998-03-10 Siemans Atkiengesellschaft Method for controlling a primary industry plant of the processing industry
WO2004028725A1 (fr) * 2002-09-12 2004-04-08 Voest-Alpine Industrieanlagenbau Gmbh & Co Procede et dispositif pour debuter un processus de coulee
EP1509350A1 (fr) * 2002-06-04 2005-03-02 Nucor Corporation Production de bandes d'acier minces
DE102021116380A1 (de) 2021-06-24 2022-12-29 Thyssenkrupp Steel Europe Ag Verfahren zum Erzeugen eines Stahlflachprodukts mit einem amorphen oder teilamorphen Gefüge und Produkt hergestellt aus einem solchen Stahlflachprodukt

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US3587708A (en) * 1968-02-21 1971-06-28 Georgy Lukich Khim Method of continuous sheet metal production
EP0047218A2 (fr) * 1980-09-01 1982-03-10 Scal Societe De Conditionnements En Aluminium Procédé de contrôle et de régulation de paramètres de marche d'une machine de coulée continue de bandes entre cylindres

Cited By (23)

* Cited by examiner, † Cited by third party
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DE3612549A1 (de) * 1985-07-06 1987-01-15 Hitachi Shipbuilding Eng Co Verfahren und vorrichtung zur regelung einer kontinuierlich arbeitenden giesseinrichtung fuer duenne metallstreifen
EP0228038A1 (fr) * 1985-12-24 1987-07-08 Aluminum Company Of America Règlement du calibre en circuit fermé dans une coulée continue entre rouleaux
EP0250145A2 (fr) * 1986-06-09 1987-12-23 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Installations de coulée continue
EP0250145A3 (en) * 1986-06-09 1989-03-08 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Coninuous casting installations
EP0322482A1 (fr) * 1986-07-17 1989-07-05 Max-Planck-Institut für Eisenforschung GmbH Dispositif de fabrication d'une feuille apte à être laminée à partir d'un métal liquide
US4976304A (en) * 1986-07-17 1990-12-11 Max-Planck-Institut Fur Eisenforschung Gmbh Apparatus for manufacturing rollable sheet from metal melts
DE3731781A1 (de) * 1987-09-22 1989-03-30 Vacuumschmelze Gmbh Vorrichtung zum herstellen eines bandfoermigen metallstranges
US4987949A (en) * 1988-07-29 1991-01-29 Hitachi Zosen Corporation Protective cover for surface of molten steel used in continuous casting apparatus
EP0411962A2 (fr) * 1989-08-03 1991-02-06 Nippon Steel Corporation Dispositif et procédé de commande d'une installation de coulée continue entre rouleaux
EP0411962A3 (en) * 1989-08-03 1992-07-22 Nippon Steel Corporation Control device and method for twin-roll continuous caster
EP0572795A1 (fr) * 1992-05-27 1993-12-08 DANIELI & C. OFFICINE MECCANICHE S.p.A. Confinement latéral annulaire pour machine de coulée continue entre rouleaux
EP0719607A1 (fr) * 1994-12-29 1996-07-03 USINOR SACILOR Société Anonyme Procédé de régulation pour la coulée continue entre cylindres
FR2728817A1 (fr) * 1994-12-29 1996-07-05 Usinor Sacilor Procede de regulation pour la coulee continue entre cylindres
US5706882A (en) * 1994-12-29 1998-01-13 Usinor-Sacilor Control process for twin-roll continuous casting
AU686912B2 (en) * 1994-12-29 1998-02-12 Thyssen Stahl Aktiengesellschaft Control process for twin-roll continuous casting
US5727127A (en) * 1995-03-09 1998-03-10 Siemans Atkiengesellschaft Method for controlling a primary industry plant of the processing industry
FR2738760A1 (fr) * 1995-09-19 1997-03-21 Ishikawajima Harima Heavy Ind Coulee d'une bande de metal
EP1509350A1 (fr) * 2002-06-04 2005-03-02 Nucor Corporation Production de bandes d'acier minces
EP1509350A4 (fr) * 2002-06-04 2005-08-10 Nucor Corp Production de bandes d'acier minces
WO2004028725A1 (fr) * 2002-09-12 2004-04-08 Voest-Alpine Industrieanlagenbau Gmbh & Co Procede et dispositif pour debuter un processus de coulee
US7156153B2 (en) 2002-09-12 2007-01-02 Voest-Alpine Industrieanlagenbau Gmbh & Co. Method and device for commencing a casting process
DE102021116380A1 (de) 2021-06-24 2022-12-29 Thyssenkrupp Steel Europe Ag Verfahren zum Erzeugen eines Stahlflachprodukts mit einem amorphen oder teilamorphen Gefüge und Produkt hergestellt aus einem solchen Stahlflachprodukt
DE102021116380B4 (de) 2021-06-24 2023-04-06 Thyssenkrupp Steel Europe Ag Verfahren zum Erzeugen eines Stahlflachprodukts mit einem amorphen oder teilamorphen Gefüge und Produkt hergestellt aus einem solchen Stahlflachprodukt

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