EP0068814A1 - Verfahren und Einrichtung einer Bogenstranggiessanlage - Google Patents

Verfahren und Einrichtung einer Bogenstranggiessanlage Download PDF

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Publication number
EP0068814A1
EP0068814A1 EP82303283A EP82303283A EP0068814A1 EP 0068814 A1 EP0068814 A1 EP 0068814A1 EP 82303283 A EP82303283 A EP 82303283A EP 82303283 A EP82303283 A EP 82303283A EP 0068814 A1 EP0068814 A1 EP 0068814A1
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EP
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Prior art keywords
straightening
strand
rolls
bow
casting
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EP82303283A
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English (en)
French (fr)
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EP0068814B1 (de
Inventor
Tadashi Murakami
Zenzo Soejima
Chihiro Yamaji
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Nippon Steel Corp
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Nippon Steel Corp
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Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to AT82303283T priority Critical patent/ATE11495T1/de
Publication of EP0068814A1 publication Critical patent/EP0068814A1/de
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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
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal

Definitions

  • the present invention relates to a method for the continuous casting of a high-quality strand with a high production efficiency, as well as to an apparatus for carrying out the method mentioned above. More particularly, the present invention relates to a bow-type continuous--casting method and apparatus in which a strand is straightened in a multi-point straightening zone by means of a plurality of pairs of straightening rolls which define curves having successively increasing radii.
  • the present invent relates to an improvement in the bow-type continuous-casting method and in the apparatus, the apparatus having a low height and comprising a multi-point straightening zone, in which pairs of the straightening rolls are successively arranged, the aim of the above method and apparatus being to realize a directly combined continuous-casting and rolling process (hereinafter referred to as the CD process).
  • the CD process a directly combined continuous-casting and rolling process
  • the CD process has attracted attention because of a reduction in the amount of thermal energy required to produce hot-rolled products according to this process and because the CD process enables strands formed in a continuous-casting machine and having a high sensible heat to be directly supplied to a hot-rolling mill without being subjected to cooling, conditioning and reheating, and thereby predetermined hot-rolled products are obtained.
  • the following must be reliably and simultaneously achieved in continuous casting: (1) the temperature of the strands must be high enough to allow direct hot-rolling; (2) the quality of the strands must be high enough to allow the production of hot-rolled products having desired qualities regardless of whether or not the strands are conditioned; and (3) the strand productivity must be higher than that of conventional casting so as to compete with the high productivity of a hot-rolling mill.
  • the present applicant has already proposed new continuous-casting methods and apparatuses so that the above-mentioned (1), (2), and (3) can be effectively achieved.
  • the basic concept of the applicant's proposals involves high-speed and moderate-cooling casting carried out in a bow-type continuous-casting machine having a low height and comprising a multi-point straightening zone. More in detail, in the continuous-casting machine according to the applicant's proposals, casting is carried out at a higher speed and more moderate cooling than in the conventional, widely used, bow-type continuous-casting machine, in which machine the machine height is 12 m or more, the radius of the curve is from 10 to 13 m, and the straightening of a strand is carried out by means of single unbending or one-point straightening.
  • the casting conditions according to the applicant's proposals enable surface defects in strands to be prevented and, further, enable high-temperature strands to be produced with a high productivity.
  • the bow-type continuous-casting machine is hereinafter referred to as a bow-type CCM.
  • Bow-type CCMs having high and low machine heights are hereinafter referred to as high-head and low-head CCMs, respectively.
  • the conventional bow-type continuous-casting machine mentioned above is hereinafter referred to as the conventional bow-type CCM.
  • the solidified shell of a strand has such a small thickness that its rigidity is decreased, with the result that a thin solidified shell is subjected to a high ferrostatic pressure due to the high machine height of the high-head CCM. Consequently, the bulging strain, which can cause inner defects in a strand, is increased. If the diameter of the rolls which support a strand is made small and if the distance between these rolls is decreased, an increase in the bulging strain can be prevented.
  • Fig. 1 the low-head CCM produced by Sumitomo Metals Co., Ltd. (TRANS. IRON & STEEL INSTITUTE OF JAPAN Vol 20. NO. 12.1980 page B-565) and described in Japanese Laid-open Patent Application Nos. 56-14062 through 14065 (1981) is schematically illustrated.
  • the machine height H of this low-head CCM which is collectively denoted by 1, is a little less than 6 m, and in the five-point straightening zone 2, six straightening rolls 7 are succcessively arranged in this zone 2 and define curves having successive- sivel y increasing radii R1 through R5 , respectively, R 1 is the basic radius of the curve and is 5800 mm and R 2 is 7100 mm.
  • a curved mold is denoted by 6. In such a low-head CCM, low-speed (from 0.7 to 0.85 m/min) and moderate-cooling casting is carried out.
  • the percentage of solidification of the molten steel in said section being straightened in the five-point straightening zone 2 is from 40 to 70%, the ferrostatic pressure applied to said section is low, and the surface temperature of said section is from 900 to 1000°C. Allegedly, the temperature of the strand is high, and the quality of the strand is not inferior to but instead is improved over that of a strand obtained by means of a high--head CCM.
  • the low-head CCM illustrated in Fig. 1 and described above is practically operated according to the information given in the above-mentioned technical report and has a machine height of a little less than 6 m, the basic radius (R 1 ) of the curve being 5.8 m, and comprises a five-point straightening zone in which six straightening rolls 7 are successively arranged.
  • This low-head CCM is hereinafter referred to as the SH-CCM.
  • the former is distinct from the latter in respect to the following: (a) high-speed and moderate-cooling casting is carried out in a low-head CCM in which the machine height and the basic radius of the curve are as small as possible and in which the straightening points are increased; (b) with a decrease in the machine height and the basic radius of the curve, as well as an increase in the straightening points, the straightening strain can be better distributed in the strand and therefore can be decreased more; and (c) consequently, the above mentioned (1), (2), and (3) required for realizing the CD process can be reliably and simultaneously achieved.
  • the SH-CCM is distinct from the applicant's proposed CCM in respect to the following: (a) the SH-CCM is constructed so as to continuously cast steels of a special size or small lots while the continuous casting of mass produced steels is carried out in an existing continuous-casting machine in which the radius (R) of the curve is 12.5 m; (b) the machine height of the SH-CCM is such that it can be installed in a steel-refining mill without the necessity of creating additional space, the reason for the production of the SH-CCM being that previously the ingot-making yard and the ladle cranes of the steel-refining mill of the SH-CCM producer were idle due to an increase in the percentage of continuously cast steels; (c) as a result of (b), the costs of the SH-CCM, including the installation and construction costs are very low; and (d) strands are charged, as a rule, into a heating furnace in a rolling-mill with a hot charge.
  • a bow-type continuous-casting method wherein a strand is straightened, at a plurality of straightening points, by means of a plurality of pairs of straightening rolls which are successively arranged in a multi-point straightening zone and which define the radii of the curves, said radii successively increasing in the multi-point straightening zone, characterized in that during a non-stationary casting period in which the top section or bottom section of said strand is conveyed through said multi-point straightening zone, at least one selected pair of said straightening rolls is shunted from the defined radius of the curve, thereby increasing the distance between the pairs of straightening rolls, which pairs exert a straightening effect on said strand, and decreasing the straightening points of said multi-point straightening zone. Said distance is hereinafter referred to as the straightening roll pitch.
  • a bow-type continuous--casting apparatus having a low height and comprising a multi-point straightening zone in which a plurality of pairs of straightening rolls for straightening a strand are stationarily arranged and define curves having successively increasing radii, characterized in that at least one selected pair of said straightening rolls is operably connected to an elastic means for automatically shunting said at least one selected pair of the straightening rolls from the defined radius of the curve during a non-stationary casting period in which the top section or the bottom section of said strand is conveyed through said multi-point straightening zone.
  • the basic radius of the curve of the strand is from 3 to 5 m and the number of straightening points is from five to fifteen. So that the continuous-casting machine of the present invention has a low machine height, the basic radius of the curve of the strand, i.e., the radius of the curved mold, must be small or is preferably 5 m at the maximum.
  • the basic radius of the curve is, however, desirably at least 3 m according to the results of a study of the relationship between the basic radius of the curve, the casting speed, the thickness of the strand, and the technique of pouring molten steel into a curved mold.
  • a basic radius of the curve of the strand of at least 3 m is deemed to be necessary for eliminating any restrictions on the pouring of the molten steel into a curved mold, which is curved, when a strand having a thickness of 200 mm or more, particularly from 200 to 300 mm, is to be formed at a high casting speed of 1.2 m/min or more, particularly approximately 1.7 m/minute.
  • the section of the strand subjected to straightening has a surface temperature of 900°C or more and also has a solidified shell 60 mm thick or less at each side of the strand.
  • the number of straightening points for successively straightening said section must be three or more so as to keep the straightening strain below the permissible value at all the straightening points.
  • the casting of a strand includes a stationary casting period and a non-stationary casting period.
  • a section of the strand, or the so-called middle section is conveyed through the multi-point straightening zone in which the straightening rolls are successively arranged, the section having a high temperature and a thin solidified shell, containing a considerable amount of molten metal, and being subjected to a low ferrostatic pressure.
  • a load hereinafter referred to as the stationary roll load, is applied to each of the straightening rolls, all of which are successively arranged in the multi-point straightening zone, and the stationary roll load is the sum of the reaction force due to straightening PUB (M) and the reaction force due to bulging P B (M) (P uB (M)+P B (M)).
  • the stationary roll load is the sum of the reaction force due to straightening PUB (M) and the reaction force due to bulging P B (M) (P uB (M)+P B (M)).
  • the load applied to the top or bottom section hereinafter referred to as the non-stationary roll load, essentially consists of the reaction force due to straightening P uB ( T ) or P uB ( B ).
  • the present inventors tentatively calculated the stationary and non-stationary roll loads in a low-head CCM under conditions in which: the basic radius of the curve of the strand was from 3 to 5 m; the number of straightening points in the multi-point straightening zone in which the straightening rolls are successively arranged was from 5 to 15; the cross section of the strand was from 200 to 300 mm in thickness and approximately 2000 mm in width; and high-speed and moderate-cooling casting was carried out.
  • the stationary roll load was from 30 to 45 tons (the reaction force due to bulging was from 10 to 15 tons and the reaction force due to straightening was from 20 to 30 tons).
  • the non-stationary roll load was from 200 to 240 tons, being from five to seven times as great as the stationary roll load.
  • the non-stationary roll load is only approximately three times as great as the stationary roll load.
  • the stationary and non-stationary roll loads applied to a 200-300 mm thick and approximately 2000 mm wide strand during its conveyance through a single-point straightening zone are from 60 to 70 tons and from 200 to 240 tons, respectively.
  • the straightening rolls of the multi-point straightening zone, which rolls are successively arranged must tolerate a considerably high load during the non-stationary period, which period is a very minor part of the entire casting period.
  • the inventors considered whether or not it would be possible for a multi--point straightening zone, in which the straightening rolls are successively arranged, particularly comprising from five to fifteen straightening points to have a straightening roll pitch enabling the bulging strain to be satisfactorily suppressed and a roll diameter capable of tolerating the non-stationary roll load.
  • the straightening rolls are periodically subjected to stationary and non-stationary roll loads, the non-stationary roll load being from five to seven times as great as the stationary roll load.
  • the life of the straightening rolls is shortened, and therefore the straightening rolls must be replaced frequently.
  • the number of straightening points is large, the CD process cannot be reliably realized.
  • a multi-point straightening zone in which a plurality of straightening rolls are successively arranged must simultaneously satisfy two requirements which are contradictory.
  • One of the requirements is that the straightening rolls be unlikely to undergo destruction.
  • the other requirement is that the straightening rolls be reliable.
  • the number of straightening points is small, the number of repeated applications of permissible stress ( ⁇ a ), shown in the ordinate of Fig. 8, is small, which number is represented in the abscissa of Fig. 9 by "Na”.
  • the destruction stress at which a material undergoes destruction after a given number (Na) of repeated applications of permissible stress ( ⁇ a ) is determined by the well-known S-N curve or Wöhler curve.
  • the number of straightening points which can makes possible fulfillment of one of the above-mentioned requirements does not make possible fulfillment of the other requirement.
  • These two requirements can be fulfilled in accordance with a concept of the present invention in which the middle section and the top or bottom section of a strand are straightened at different straightening strains, the straightening strain of the middle section being such that specifically the quality of the strand is ensured, and in which the straightening strain in the top or bottom section may be higher than the permissible value in the light of the quality of the strand since a part of the top or bottom section becomes a crop, and the reliability of the low-head CCM is specifically ensured and enhanced by decreasing the non-stationary roll load.
  • the present inventors discovered that the shunting of at least one pair of straightening rolls, hereinafter simply referred to as the shunting method, can increase the straightening strain and can decrease the non-stationary roll load, thereby increasing the number of repeated application of a permissible stress (6a) applied to the straight- ening rolls. Since the non-stationary roll load can be decreased by means of the shunting method and, further, since the number of straightening points in the multi-point straightening zone of the present invention is large, the reliability of the bow-type CCM according to the present invention is enhanced.
  • said at least one selected pair of straightening rolls shunted from the defined radius of the curve is either an even or an uneven numbered pair of straightening rolls as seen in the withdrawal direction of the strand.
  • the straightening roll pitch and the non-stationary roll load can be decreased by approximately one half.
  • a plurality of pairs of straightening rolls comprises a plurality of groups, each group comprising at least three pairs of straightening rolls, and said at least one selected pair of straightening rolls is either the second or a subsequent pair of straightening rolls of said groups as seen in the withdrawal direction of the strand.
  • the straightening roll pitch in each group and the non-stationary roll load can be decreased approximately l/(n+l) times, wherein n indicates the number of pairs straightening rolls shunted in each group.
  • the multi-point straightening zone 10 comprises sixteen pairs of straightening rolls 11 sucessively arranged.
  • the machine height H is preferably from 3.4 to 5.2 m, and the basic radius R of the curve defined by the curved mold is from 3 to 5 m.
  • Fig. 4 an embodiment of the shunting method, which embodiment is appropriate for a low-head CCM having a machine height of, for example, 3 m, is schematically illustrated.
  • every three pairs of straightening rolls 11 as calculated in the withdrawal direction of the strand constitute one group, and therefore the multi-point straightening zone 10 has five groups of straightening rolls, the three pairs of straightening rolls 11 in each group being successively arranged.
  • the second and third pairs of straightening rolls 11 in the five groups are shunted from the defined radii R 2 , R 3 , R 51 R 6 , R 8 , R 9 , R 11 , R 12' R 14' and R 15 .
  • the basic radius R 1 of the curve may be 3 m, and the straightening roll pitch and the unbending-arm length are approximately tripled.
  • Fig. 5 an embodiment of the shunting method, which embodiment is appropriate for a low-head CCM having a height of, for example, 3 m, is schematically illustrated.
  • every four pairs of straightening rolls 11 as calculated in the withdrawal direction of the strand constitute one group, and therefore the multi-point straightening zone 10 has four groups, the four pairs of straightening rolls 11 each in group being successively arranged.
  • the basic radius R 1 of the curve may be 3 m, and the straightening roll pitch and the unbending-arm length are approximately quadrupled.
  • shunting is carried out during a period when the top or bottom section of a strand, where virtualy complete solidification of the molten metal is attained, is conveyed through a multi-point straightening zone in which the straightening rolls are successively arranged. Shunting during this period is achieved by of tracking a section of the strand being conveyed through the multi-point straightening zone mentioned above and then, upon detecting the border between the middle section and the top or bottom section of the strand, successively shunting pairs of the straightening rolls as seen in the withdrawal direction of the strand.
  • straightening-roll assemblies which are capable of realizing the shunting method are illustrated.
  • the two straightening-roll assemblies at either the inner or outer side of the strand are shown while the two straightening-roll assemblies at the other side of the strand are not shown.
  • One straightening-roll assembly, which is not shunted during a non-stationary casting period, is collectively denoted by lls while the other straightening--roll assembly, which is shunted during a non-stationary casting period, is collectively denoted by llm.
  • the straightening-roll assembly lls is hereinafter referred to as the stationary straightening-roll assembly lls.
  • the straightening roll 11 of the stationary straightening-roll assembly lls is mounted on a bearing box 16 which is rigidly secured to a supporting frame 17.
  • the supporting frame 17 is rigidly secured by means of bolts and muts 18 to the top surface of a supporting base 15, which is in turn secured to a stationary frame 14 of a low-head CCM by means of bolts and nuts 13. Therefore, the stationary straightening--roll assembly lls is stationarily arranged in the multi--point straightening zone during both the stationary and non-stationary casting periods.
  • the movable straightening-roll assembly 11m comprises an elastic means which is operably connected to the straightening roll 11 so that the straightening roll 11 rotatably engages with the strand (not shown) and which is responsive to the stationary and non-stationary roll loads as a rigid body and an elastic body, respectively.
  • the elastic means preferably comprises cone-shaped springs 28 or a hydraulic cylinder (not shown). The cone-shaped springs 28 are secured between the supporting frame 17 and the supporting base 15.
  • the supporting frame 17 is preferably slidably mounted on the supporting base 15 so that the supporting frame 17 is slidably retracted towards a space 24 within the supporting base 15 during a non--stationary casting period.
  • the supporting base 15 has a large-diameter base part 20, which defines the space 24 therein, and a medium-diameter cylindrical part 21, which defines a vertical slot 23 therein.
  • the supporting frame 17 has a frame 25 for supporting the bearing box 16 and a flange 26, which comprises a downwardly protruding rod 27. The downwardly protruding rod 27 is inserted in and is vertically slidable along the vertical slot 23.
  • the cone-shaped springs 28 are preferably surrounded by the inner wall of a cylindrical sleeve 29 which is secured to the flange 26 but which is slidably displaced along the outer periphery of the medium-diameter cylindrical part 21 until the cylindrical sleeve 29 engages with the top surface of the large-diameter base part 20.
  • the length of the cylindrical sleeve 29 is determined so that the maximum stroke during slidable retraction of the supporting frame 17 is restricted by the distance between the top surface of the medium-diameter cylindrical part 21 and the lower end of the cylindrical sleeve 29 during the stationary casting period.
  • the supporting frame 17 is capable of slidably retracting due to the force of the strand (not shown) during a non-stationary casting period.
  • a slidable advancing of the supporting frame 17 is preferably restricted by a stopper disc 30 which is secured to the lower end of the rod 27 by means of a bolt 31 and which can engage with the lower end of the medium-diameter cylindrical part 21.
  • the vertical position of the supporting frame 17 relative to the supporting base 15 can therefore be maintained within a predetermined range due to the cylindrical sleeve 29 and the stopper disc 30, the stopper disc 30 preventing the supporting frame 17 from moving away from the supporting base 15.
  • the straightening roll 11 of the movable straightening--roll assembly llm can be automatically retracted or displaced in a downward direction, as shown in the drawing; when the strand (not shown) exerts on said roll a critical force which is greater than the value predetermined by the cone-shaped springs 28.
  • This critical force is one half of the non-stationary roll load due to shunting of at least one selected pair of straightening rolls.
  • the inner roll displaced as described above tends to decrease the radius of the curve of the strand as compared with the radius (Rn) of the curve defined by the pair of straightening rolls before shunting or during the stationary casting period. This radius is simply referred to as the theoretical radius (Rn).
  • the outer roll displaced as described above tends to increase regarding the radius of the curve of the strand as compared with the theoretical radius (Rn).
  • the top section is between the second and third pairs of rolls.
  • the outer roll of the second pair of rolls is retracted and is subjected to a load which is determined by the cone-shaped spring operably connected to the outer roll.
  • the outer roll presumably still engages in the straightening of the strand since the outer roll exerts on the strand a force which is determined by the cone-shaped spring and which is less than the straightening force during the stationary casting period.
  • straightening is carried out essentially by the inner roll of the second pair of rolls. An increase in the straightening roll pitch and in the unbending-arm length therefore results since the pairs of rolls which engage in the straightening of the strand, i.e., the inner and outer rolls, are the first and third pairs of rolls.
  • both the inner and outer rolls of the second pair of rolls are retracted. After the top end of the strand has passed through the second pair of rolls, the inner and outer rolls of the second pair of rolls are reverted to their original positions.
  • the force to which the inner and outer rolls of the second pair of rolls are subjected during a non-stationary casting period is the stationary roll load.
  • the force to which the non-shunted first and third pairs of rolls are subjected during a non-stationary casting period is only approximately one half the non-stationary roll load according to the conventional straightening process.
  • the essential parts of the low-head CCM of the example according to the present invention are schematically shown in Fig. 2.
  • the continuous casting method of the present invention was carried out by means of a low-head CCM under the casting parameters given below.
  • the parameters of the low-head CCM were as follows:
  • Machine height H 3.5 m
  • the stationary and non-stationary roll loads were from 28 to 33 tons and from 55 to 116 tons, respectively.
  • Produced strands having a cross section 250 mm thick and 2000 mm wide were free of internal and external defects and had a high temperature.
  • the life of the straightening rolls which was calculated on the basis of...the non--stationary roll load, was such that the rolls could withstand repeated applications of the non-stationary roll load of 1.5 x 1 0 6 times.
  • Continuous casting in accordance with the method described in the above example was repeated except that all of the straightening rolls were stationary during the stationary and non-stationary casting periods.
  • the stationary and non-stationary roll loads were from 28 to 33 tons and from 108 to 231 tons, respectively. Strands produced were free of internal and external defects, but the non-stationary roll load was, on the average, twice as high as that of the above example.
  • the straightening rolls could withstand repeated applications of the non-stationary roll load of 2 x 10 4 times. This value was approximately 1/75 times as low as that of the above example. That is, according to the shunting method, the life of the straightening rolls could be prolonged approximately 75 times as long as in the case of conventional continuous casting.
EP82303283A 1981-06-25 1982-06-23 Verfahren und Einrichtung einer Bogenstranggiessanlage Expired EP0068814B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82303283T ATE11495T1 (de) 1981-06-25 1982-06-23 Verfahren und einrichtung einer bogenstranggiessanlage.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56098964A JPS58363A (ja) 1981-06-25 1981-06-25 多点矯正彎曲型連続鋳造方法及び装置
JP98964/81 1981-06-25

Publications (2)

Publication Number Publication Date
EP0068814A1 true EP0068814A1 (de) 1983-01-05
EP0068814B1 EP0068814B1 (de) 1985-01-30

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EP82303283A Expired EP0068814B1 (de) 1981-06-25 1982-06-23 Verfahren und Einrichtung einer Bogenstranggiessanlage

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EP (1) EP0068814B1 (de)
JP (1) JPS58363A (de)
AT (1) ATE11495T1 (de)
AU (1) AU531512B2 (de)
BR (1) BR8203701A (de)
CA (1) CA1189281A (de)
DE (1) DE3262130D1 (de)
ES (1) ES513478A0 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6155332A (en) * 1998-11-06 2000-12-05 Voest-Alpine Industrieanlagenbau Gmbh Process for continuously casting metal and continuous casting apparatus used thereof
CN112938539A (zh) * 2019-11-26 2021-06-11 苏政委 一种袋装货物自动装车码垛机
CN113070370A (zh) * 2021-05-03 2021-07-06 芜湖恒泰有色线材股份有限公司 一种成品无氧铜杆连续冷拉放卷在线矫直机构

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013224557A1 (de) 2013-11-29 2015-06-03 Sms Siemag Ag Stranggießanlage und Verfahren zum Stranggießen eines Metallstranges
KR101736574B1 (ko) * 2015-06-04 2017-05-17 주식회사 포스코 응고 장치

Citations (4)

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Publication number Priority date Publication date Assignee Title
US3776298A (en) * 1971-07-02 1973-12-04 Mannesmann Ag Apparatus for controlling the pressure force in multi-roll drives for equipment withdrawing an ingot from a continuous casting machine along a curved path
DE2559038A1 (de) * 1975-01-13 1976-07-15 Nippon Kokan Kk Verfahren und vorrichtung zum stranggiessen von stahl
DE2544556B2 (de) * 1975-10-04 1978-02-02 Demag Ag, 4100 Duisburg Stuetzrollengeruest fuer stahl-brammenstranggiessanlagen, insbesondere fuer bogen- brammenstranggiessanlagen
EP0036490A1 (de) * 1980-03-22 1981-09-30 MANNESMANN Aktiengesellschaft Verfahren und Antriebsanordnung zum Regeln der Einzelantriebe einer Bogenstranggiess-Vielrollenmaschine für Metall, insbesondere für Stahl

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776298A (en) * 1971-07-02 1973-12-04 Mannesmann Ag Apparatus for controlling the pressure force in multi-roll drives for equipment withdrawing an ingot from a continuous casting machine along a curved path
DE2559038A1 (de) * 1975-01-13 1976-07-15 Nippon Kokan Kk Verfahren und vorrichtung zum stranggiessen von stahl
DE2544556B2 (de) * 1975-10-04 1978-02-02 Demag Ag, 4100 Duisburg Stuetzrollengeruest fuer stahl-brammenstranggiessanlagen, insbesondere fuer bogen- brammenstranggiessanlagen
EP0036490A1 (de) * 1980-03-22 1981-09-30 MANNESMANN Aktiengesellschaft Verfahren und Antriebsanordnung zum Regeln der Einzelantriebe einer Bogenstranggiess-Vielrollenmaschine für Metall, insbesondere für Stahl

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, Vol. 5, No. 61, 24 April 1981, & JP-A-56 014 064 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6155332A (en) * 1998-11-06 2000-12-05 Voest-Alpine Industrieanlagenbau Gmbh Process for continuously casting metal and continuous casting apparatus used thereof
CN112938539A (zh) * 2019-11-26 2021-06-11 苏政委 一种袋装货物自动装车码垛机
CN113070370A (zh) * 2021-05-03 2021-07-06 芜湖恒泰有色线材股份有限公司 一种成品无氧铜杆连续冷拉放卷在线矫直机构

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AU531512B2 (en) 1983-08-25
ES8306969A1 (es) 1983-06-16
CA1189281A (en) 1985-06-25
DE3262130D1 (en) 1985-03-14
BR8203701A (pt) 1983-06-21
EP0068814B1 (de) 1985-01-30
JPS58363A (ja) 1983-01-05
ES513478A0 (es) 1983-06-16
ATE11495T1 (de) 1985-02-15
AU8493982A (en) 1983-05-19

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