EP0074247A1 - Maschine des Bogenstranggusstyps mit Vielpunktrichtanordnung und mit einer niedrigen Anlagenhöhe - Google Patents

Maschine des Bogenstranggusstyps mit Vielpunktrichtanordnung und mit einer niedrigen Anlagenhöhe Download PDF

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Publication number
EP0074247A1
EP0074247A1 EP82304600A EP82304600A EP0074247A1 EP 0074247 A1 EP0074247 A1 EP 0074247A1 EP 82304600 A EP82304600 A EP 82304600A EP 82304600 A EP82304600 A EP 82304600A EP 0074247 A1 EP0074247 A1 EP 0074247A1
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EP
European Patent Office
Prior art keywords
strand
straightening
stand
guiding
oscillation
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.)
Granted
Application number
EP82304600A
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English (en)
French (fr)
Other versions
EP0074247B1 (de
Inventor
Tadashi Nippon Steel Corporation Murakami
Zenzo Nippon Steel Corporation Soejima
Chihiro Nippon Steel Corporation Yamaji
Haruo Nippon Steel Corporation Kitamura
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Nippon Steel Corp
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Nippon Steel Corp
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Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15221685&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0074247(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to AT82304600T priority Critical patent/ATE18640T1/de
Publication of EP0074247A1 publication Critical patent/EP0074247A1/de
Application granted granted Critical
Publication of EP0074247B1 publication Critical patent/EP0074247B1/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 an improvement in a multi-point straightening type continuous-casting machine (CCM) having a low machine height, which machine comprises a curved mold; an oscillating means for imparting oscillation movement to the curved mold; a strand-guiding means in which a plurality of pairs of upper and lower supporting rolls is arranged so as to guide a strand along the basic radius of the curve; a multi-point straightening means in which a plurality of pairs of upper and lower straightening rolls for straightening the strand is arranged and defines curves having successively increasing radii; and a horizontal guiding means for guiding the strand in a horizontal direction.
  • the present invention remarkably improves the maintainability of the parts and equipment of the above--mentioned continuous-casting machine constituting the curved path for guiding the strand.
  • the above described CCM having a low machine-height (low-head) is described in Japanese Unexamined Patent Publication (Kokai) Nos. 56-14062 through 56-14065.
  • the above-mentioned Japanese unexamined patent publications disclose, in a specific embodiment, a multi-point straight- ' ening bow-type low-head CCM with a machine height of a little less than 6 m, a continuous five-point straightening means, and a basic radius of the curve of the curved mold and the strand-guiding means of 5800 mm.
  • casting is carried out under a low casting-speed in the range of from 0.7 to 0.75 m/min and under moderate cooling.
  • the continuous five-point straightening means can straighten strand portions where the molten steel has not yet solidified, i.e., the percentage of solidification of the molten steel is from 40% to 70%, and the solidified shell has high-temperature and is thin:
  • the ferrostatic pressure applied to said strand portions is low and the straightening internal-strain at each of the five straightening points is 0.35% or less.
  • the surface temperature of the strand portion in the continuous five--point straightening means being in the range of from 900°C to 1000°C, of a quality not only not inferior to but improved over that of a strand obtained by means of a conventional bow-type CCM having a high machine height (high-head CCM) , in which the basic radius of the curve is from 10.5 to 12.5 m and the straightening of a strand is carried out by means of single unbending or one-point straightening.
  • An object of the present invention is to provide such a low-head CCM in which the maintainability of the parts and equipment of the low head CCM constituting the curved strand--guiding path is remarkably improved.
  • the present invention was made on the basis of the above-mentioned discovery.
  • the gist of the present invention resides in a multi--point straightening bow-type low-head CCM which comprises a curved mold, an oscillating means for imparting oscillation movement to the curved mold, a strand-guiding means in which a plurality of pairs of upper and lower supporting rolls are arranged so as to guide a strand along the basic radius of the curve, a multi-point straightening means in which a plurality of pairs of upper and lower straightening rolls for straightening the strand is arranged and defines curves having successively increasing radii, and a horizontal guiding means for guiding the strand in a horizontal direction.
  • the CCM is characterized in that it further comprises a removable and exchangeable stand, which is placed on a stand-carrying base frame and which is provided with the curved mold and the oscillating means, and a main frame which is connected to the stand and on which the strand-guiding means and the multi-point straightening means are removably and exchangeably arranged.
  • the curved mold, oscillating means strand-guiding means, and multi-point straightening means are thus set in a block in the single stand which is removably and exchangeably arranged at a predetermined position on the base frame.
  • Figure 1 illustrates one embodiment of the present invention.
  • a stand-carrying base frame 1 for carrying a stand 3 is secured to the upper surface of a foundation 2.
  • the stand 3 is secured to a predetermined position on the base frame 1 while being held between a stand-fixing means 4 and a stand-pressing means 5.
  • A. guide 6 secured to the base frame 1 serves to regulate the position where the stand 3 is secured to the base frame 1.
  • Figure 2 is a side view of the leg of the stand 3 shown in Fig. 1.
  • a projection 22 provided on the base frame 1 fits in a groove 23 formed in the lower surface of the leg of the stand 3 so as to regulate the position where the stand 3 is secured to the base frame 1.
  • an oscillating table 7 mounted on the stand 3 is caused to oscillate by an oscillating means 8.
  • the oscillating means 8 is mounted on the stand 3.
  • a curved mold 9 is mounted on the oscillating table 7.
  • the oscillating table 7 is pivotably supported at its supporting point 0 1 and at its oscillation point 0 2 by means of a blanket 40 mounted on the stand 3 and by means of an oscillating-driving lever 42 including an oscillation--generating cam shaft 41 of the oscillating means 8, respectively.
  • An oscillation-driving reduction unit 43 and a driving motor 44 are also mounted on the stand 3.
  • a rotary driving shaft 47 of the oscillation-generating cam shaft 41 is connected to a rotary driving shaft 45 of the reduction unit 43 through a coupling 46. The rotation of the rotary driving shaft 47 is transmitted to the oscillation-generating cam shaft 41 through a transmission mechanism (not shown).
  • a main frame 10 is connected to and is located within the stand 3.
  • a strand-guiding means 11 and a multi-point straightening means 12 are removably and exchangeably mounted on the main frame 10.
  • the strand-guiding means 11 is one conventionally used in the high-head CCM and is composed of a strand-guiding roll segment consisting of a plurality of pairs of upper and lower supporting rolls. More particularly, the strand-guiding roll segment comprises a plurality of lower supporting rolls 14 rotatably supported by a lower segment frame 13 and a plurality of upper supporting rolls 15 rotatably supported by an upper segment frame 16. Each of the upper supporting rolls 15 has a corresponding lower supporting roll 14 positioned opposite thereto.
  • the upper segment frame 16 is connected to the lower segment frame 13 through a coupling rod (not shown).
  • the strand-guiding means 11, in the form of a segment, is connected to the main frame 10 by a coupling 18.
  • Each of the lower supporting rolls 14 of the strand-guiding means 11, whose lower frame 13 is mounted on the main frame 10, is arranged along the basic radius of the curve.
  • the multi-point straightening means 12 comprises a series of three strand-straightening roll segments 24 arranged removably and exchangeably on the main frame 10.
  • Each of the strand-straightening roll segments 24 comprises a plurality of pairs of straightening rolls 21 rotatably supported on opposing surfaces of a lower segment frame 19A and an upper segment frame 19B.
  • the upper segment frame 19B is removably secured to coupling rods 20 installed at four corners of the lower segment frame 19A.
  • the straightening rolls 21, which are rotatably supported by the lower segment frame 19A, are positioned so as to define curves having successively increasing radii.
  • the strand-straightening roll segments 24 are connected to the main frame 10 by means of a coupling 25.
  • a guiding means for guiding a strand in the horizontal direction comprises a group of horizontal guiding roll segments and is installed after the multi-point straightening means 12 located within the stand 3.
  • the horizontal guiding means is not shown in the drawings.
  • Reference numeral 26 denotes a lifting fitting provided on the stand 3.
  • the curved mold 9, the oscillating means 8, the strand guiding means 11 and the multi-point straightening means 12 are directly or indirectly set in the single stand.
  • release of the force of the stand-pressing means 5, pressing the stand 3 against the stand-fixing means 4 allows rapid exchange of the stand 3 with another stand (not shown) of the same construction, located off line and ready for use, by means of a crane (not shown).
  • the curved strand-guiding apparatus which comprises the curved mold 9, the strand-guiding means 11, and the multi-point straightening means 12, i.e., the three strand--straightening roll segments 24, can be subjected to inspection and maintenance. If necessary, the curved mold 9, the strand-guiding means 11 or the multi-point straightening means 12 can then be replaced.
  • the low-head CCM of the present invention therefore enables roll-alignment adjustment between the segments 11, 24 off line, compared with the conventional high-head CCM where such roll alignment adjustment has been effected on line. Therefore, more precise roll-alignment adjustment becomes possible in the present invention.
  • the multi-point straightening means 12 is removed from the main frame connected to the stand 3.
  • the oscillation-driving reduction unit 43 and the driving motor 44 of the oscillating means 8 are mounted on a holder 48 secured to the foundation 2.
  • the oscillation-generating cam shaft 41 of the oscillating means 8 is mounted on the stand 3 which is removably and exchangeably placed on the stand-carrying base frame 1.
  • the rotary driving shaft 45 of the oscillation driving reduction unit 43 is removably connected to the rotary driving shaft 47 of the oscillation-generating cam shaft 41 through a connecting and disconnecting mechanism 49. So as to minimize the time required for the exchange work of the stand 3, the numbers of necessary oscillation-driving reduction units 43 and driving motors 44 have been keep at one each.
  • a spline shaft 50 is fitted to the rotary driving shaft 45 of the oscillation-driving reduction unit 43.
  • a shaft 51 having a spline bore is fitted to the end of the rotary driving shaft 47 of the oscillation-generating cam shaft 41.
  • a bearing 52 located on the holder 48 is displaceable forward and backward guided by a guide 58.
  • a transmission shaft 53 is rotatably supported by the bearing 52. The end portion of the transmission shaft 53 forms a spline shaft 54 which is removably fitted in the spline bore of the shaft 51.
  • a shaft 55 has a spline bore into which the spline shaft 50 of the oscillation-driving reduction unit 43 is inserted, is slidable in the direction of the spline shaft 50, and is fitted in the rear end of the transmission shaft 53.
  • a hydraulic cylinder 56 is connected to the rear end of the guide 58 located on the holder 48.
  • the cylinder shaft 57 is connected to the bearing 52.
  • the multi-point straightening means 12 of the low-head CCM 27 (Figs. 1 and 7)
  • a larger number of straightening points is preferable so as to disperse the strain.
  • the diameter of and the distance between the straightening rolls 21- are smaller than those of rolls of a strand-guiding roll segment of a high-head CCM.
  • the rolls supported by the upper or lower segment frames are rotatably and removably disposed in roll-bearing boxes secured to the frame surface by means of nuts and bolts.
  • strand-straightening roll segments having the structure shown in Figs. 3 through 6, in which divided rolls can be easily exchanged, are used for the strand-straightening roll segments 24 of the multi-point straightening means 12 shown in Fig. 1.
  • Figure 3 is a front view of the strand-straightening roll segment 24.
  • Figure 4 is a cross-sectional view along line A-A of Fig. 3.
  • Figure 5 is a cross-sectional view along line B-B of Fig. 4.
  • Figure 6 is an enlarged cross-sectional view of the portion of Fig. 3.
  • each of the lower and upper segment frames 19 A and B is provided with rectangular apertures 29 into which a cassette frame 28 for supporting divided straightening-rolls is fitted. Furthermore, screw shafts 30 (Fig. 6) are screwed at the two outer sides of the rectangular apertures 29.
  • a pair of straightening rolls 21 each having roll-bearing boxes 31 at the ends thereof are placed in juxtaposition to each other.
  • the roll-bearing boxes 31 are secured to the cassette frame 28 in a conventional manner.
  • Taper surfaces 33 are formed at the bottom surfaces of the two ends-of the cassette frame 28, which surfaces are positioned in the rectangular apertures 29.
  • the two taper surfaces 33 are opposite to one another.
  • the two ends of the cassette frame 28 are provided with penetrating apertures 32 through which the screw shaft 30 of the lower and upper segment frames 19 A and B is projected.
  • a cassette type roll assembly 34 is constructed.
  • the screw shaft 30 is fitted in a taper block 36 having an elliptical aperture 35.
  • the end of a bolt 38 engaged with a nut means 37 is secured to the upper surface of the cassette frame 28 outside the taper block 36.
  • a bolt 38 engaged with the nut means 37 is connected at an end thereof to the rear surface of the taper block 36 so that the taper block 36 can be displaced forward and backward by rotation of the bolt 38.
  • the screw shafts 30 are fitted in the penetrating apertures 32 of the cassette frame 28 of the cassette type roll assembly 34 so that the cassette frame 28 rests on the tapered surface of the taper block 36. Then the taper block 36 is displaced forward and backward by rotating the bolt 38, thereby to condition the roll surface. Thereafter, nuts 39 (Fig. 3) are engaged with the screw shafts 30 so as to fix the cassette type roll assembly 34 in place.
  • the lower and upper segment frames 19 are connected to each other by means of the coupling rods 20 in a conventional manner, as shown in Fig. 3.
  • the divided straightening rolls 21 can be rapidly exchanged with new divided straightening rolls (not shown) merely by removing two nuts 39 on both sides of the cassette frame 28 and by exchanging the corresponding cassette type roll assembly 34 with a spare cassette type roll assembly (not shown).
  • the roll alignment adjustment of the new divided straightening rolls 21 can be carried out merely by adjusting the position of the taper blocks 36 on both sides of the cassette frame 28. Therefore, the roll alignment adjustment can also be effected rapidly and certainly.
  • the divided straightening rolls 21 may be removed from the cassette frame 28 and exchanged with other divided straightening rolls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Bridges Or Land Bridges (AREA)
  • Valve Housings (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP82304600A 1981-09-04 1982-09-01 Maschine des Bogenstranggusstyps mit Vielpunktrichtanordnung und mit einer niedrigen Anlagenhöhe Expired EP0074247B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82304600T ATE18640T1 (de) 1981-09-04 1982-09-01 Maschine des bogenstranggusstyps mit vielpunktrichtanordnung und mit einer niedrigen anlagenhoehe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP138426/81 1981-09-04
JP56138426A JPS5850156A (ja) 1981-09-04 1981-09-04 低機高、多点矯正彎曲型連続鋳造機

Publications (2)

Publication Number Publication Date
EP0074247A1 true EP0074247A1 (de) 1983-03-16
EP0074247B1 EP0074247B1 (de) 1986-03-19

Family

ID=15221685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82304600A Expired EP0074247B1 (de) 1981-09-04 1982-09-01 Maschine des Bogenstranggusstyps mit Vielpunktrichtanordnung und mit einer niedrigen Anlagenhöhe

Country Status (8)

Country Link
EP (1) EP0074247B1 (de)
JP (1) JPS5850156A (de)
AT (1) ATE18640T1 (de)
BR (1) BR8205209A (de)
CA (1) CA1195471A (de)
DE (1) DE3269992D1 (de)
ES (1) ES515466A0 (de)
ZA (1) ZA826385B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2149733C1 (ru) * 1998-09-28 2000-05-27 Открытое акционерное общество "Северсталь" Устройство для настройки технологической оси установки непрерывной разливки стали
WO2007101685A1 (de) * 2006-03-09 2007-09-13 Sms Demag Ag Stranggiessanlage und verfahren zum betreiben einer stranggiessanlage
CN109226704A (zh) * 2018-11-03 2019-01-18 深圳阿尔泰克轻合金技术有限公司 一种铝锭生产系统及方法
CN114603093A (zh) * 2020-12-09 2022-06-10 中冶京诚工程技术有限公司 一种异型坯连铸机扇形段
CN119220767A (zh) * 2024-09-26 2024-12-31 马鞍山钢铁股份有限公司 一种用于喂线的输送引导装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5379534A (en) * 1991-01-22 1995-01-10 Negishi; Jinichiro Bucket equipped with mixing device, excavation machine having the bucket, and soil improvement method using the excavation machine
JPH0435787A (ja) * 1990-05-31 1992-02-06 Omuko Higashi Nippon:Kk アルカリイオン水
US5491914A (en) * 1992-11-24 1996-02-20 Negishi; Jinichiro Bucket equipped with mixing device, excavation machine having the bucket, and soil improvement method using the excavation machine
DE102013224557A1 (de) 2013-11-29 2015-06-03 Sms Siemag Ag Stranggießanlage und Verfahren zum Stranggießen eines Metallstranges

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458123B1 (de) * 1963-06-25 1972-11-16 Moossche Eisenwerke Ag Verfahren zum kontinuierlichen Herstellen von mehreren profilierten Strängen und Anlage zur Durchführung dieses Verfahrens
US3707184A (en) * 1969-05-20 1972-12-26 Concast Ag Withdrawal and straightening apparatus for continuous casting
US3722576A (en) * 1971-08-16 1973-03-27 Steel Corp Method and apparatus for straightening continuous casting
DE2264330A1 (de) * 1972-12-30 1974-07-25 Schloemann Ag Treib- und richtvorrichtung an einer stahlstranggiessanlage
DE2636667B1 (de) * 1976-08-14 1977-12-29 Demag Ag Walze fuer ein stuetz-, treib- und richt-walzengeruest bei einer metallstranggiessvorrichtung, insbesondere fuer eine stahlbrammen-bogenstranggiessvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1458123B1 (de) * 1963-06-25 1972-11-16 Moossche Eisenwerke Ag Verfahren zum kontinuierlichen Herstellen von mehreren profilierten Strängen und Anlage zur Durchführung dieses Verfahrens
US3707184A (en) * 1969-05-20 1972-12-26 Concast Ag Withdrawal and straightening apparatus for continuous casting
US3722576A (en) * 1971-08-16 1973-03-27 Steel Corp Method and apparatus for straightening continuous casting
DE2264330A1 (de) * 1972-12-30 1974-07-25 Schloemann Ag Treib- und richtvorrichtung an einer stahlstranggiessanlage
DE2636667B1 (de) * 1976-08-14 1977-12-29 Demag Ag Walze fuer ein stuetz-, treib- und richt-walzengeruest bei einer metallstranggiessvorrichtung, insbesondere fuer eine stahlbrammen-bogenstranggiessvorrichtung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2149733C1 (ru) * 1998-09-28 2000-05-27 Открытое акционерное общество "Северсталь" Устройство для настройки технологической оси установки непрерывной разливки стали
WO2007101685A1 (de) * 2006-03-09 2007-09-13 Sms Demag Ag Stranggiessanlage und verfahren zum betreiben einer stranggiessanlage
US8100166B2 (en) 2006-03-09 2012-01-24 Sms Siemag Aktiengesellschaft Continuous casting plant and method of operating a continuous casting plant
CN109226704A (zh) * 2018-11-03 2019-01-18 深圳阿尔泰克轻合金技术有限公司 一种铝锭生产系统及方法
CN114603093A (zh) * 2020-12-09 2022-06-10 中冶京诚工程技术有限公司 一种异型坯连铸机扇形段
CN114603093B (zh) * 2020-12-09 2025-04-18 中冶京诚工程技术有限公司 一种异型坯连铸机扇形段
CN119220767A (zh) * 2024-09-26 2024-12-31 马鞍山钢铁股份有限公司 一种用于喂线的输送引导装置

Also Published As

Publication number Publication date
BR8205209A (pt) 1983-08-16
EP0074247B1 (de) 1986-03-19
ZA826385B (en) 1983-07-27
DE3269992D1 (en) 1986-04-24
CA1195471A (en) 1985-10-22
ATE18640T1 (de) 1986-04-15
JPH0152102B2 (de) 1989-11-07
ES8307553A1 (es) 1983-08-16
JPS5850156A (ja) 1983-03-24
ES515466A0 (es) 1983-08-16

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