EP0907440B1 - Bandgiesseinrichtung - Google Patents

Bandgiesseinrichtung Download PDF

Info

Publication number
EP0907440B1
EP0907440B1 EP97929093A EP97929093A EP0907440B1 EP 0907440 B1 EP0907440 B1 EP 0907440B1 EP 97929093 A EP97929093 A EP 97929093A EP 97929093 A EP97929093 A EP 97929093A EP 0907440 B1 EP0907440 B1 EP 0907440B1
Authority
EP
European Patent Office
Prior art keywords
sections
casting device
strip casting
roll
contact faces
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.)
Expired - Lifetime
Application number
EP97929093A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0907440A2 (de
Inventor
Klaus Prof.Dr.Ing. Schwerdtfeger
Karl-Heinz Dr.Ing. Spitzer
Wolfgang Prof.Dr.-Ing. Reichelt
Ulrich Dr.-Ing. Urlau
Joachim Dr.-Ing. Kroos
Heino Dr.-Ing. Buddenberg
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.)
Salzgitter AG
SMS Siemag AG
Original Assignee
Salzgitter AG
SMS Demag AG
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
Priority claimed from DE19622927A external-priority patent/DE19622927C2/de
Application filed by Salzgitter AG, SMS Demag AG filed Critical Salzgitter AG
Publication of EP0907440A2 publication Critical patent/EP0907440A2/de
Application granted granted Critical
Publication of EP0907440B1 publication Critical patent/EP0907440B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B22D11/0677—Accessories therefor for guiding, supporting or tensioning the casting belts
    • 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
    • B22D11/1287—Rolls; Lubricating, cooling or heating rolls while in use

Definitions

  • the invention relates to a belt casting device, with a melt feed by means of the melt, is applied to a circulating belt, cooled from below by water, and the circulating belt is supported by carriers, a vacuum being applied to the side of the belt facing the carriers by means of a cooler.
  • a tape caster is known from "IRON AND STEELMAKERS, Vol. 22, No. 11, Nov. 1995, pp.47-53".
  • a belt caster is a system in which the molten steel via a feed system on a circulating belt, cooled from below by water is promoted.
  • the underside of the applied steel layer then solidifies in contact with the tape and the top as a free surface under protective gas or for Achieving a better surface finish in contact with a top roller.
  • the resulting strand leaves the surrounding one Conveyor belt and is further conveyed by a driver.
  • the casting thickness of the strip (approx. 10 mm) can be largely chosen optimally.
  • the optimal casting thickness is the one at which the required Degree of hot deformation is achieved with as little deformation work as possible.
  • the circulating conveyor belt enables cooling and largely friction-free Support of the strand over a long area. This results in a high one Pouring speed as required for a direct coupling between Casting plant and rolling stage is, and high productivity as the basic condition for that Casting of steels.
  • the revolving belt which is accessible from above and from the front, facilitates this Steel supply.
  • the steel does not have to be in a narrow gap, as in other processes between two belts or rollers.
  • a cooling device water cooling with suitable nozzles
  • the high temperatures applied with the molten steel to the top of the belt cause the circulating belt to bulge. This bulge is reflected in the shape of the strand in its surface.
  • a vacuum is set in the cooler to avoid bulging. Due to the pressure difference, the circulating belt is z. B. pressed on support rollers.
  • Support rollers previously used had one Longitudinal section with grooves that ( Figure 12 of the publication) had support rollers, so a profiled surface, the profile in longitudinal section compared to the minimal Roll diameter had sections with a larger diameter. The width until now, these distances essentially corresponded to the distance between the sections.
  • the object of the invention was therefore to provide a strip casting device, where the maximum deviation of the conveyor belt from that by the Carrier defined area is minimized. The bulge should therefore be reduced become.
  • This task is - starting from a strip caster with the features of the preamble of claim 1 - solved in that the carrier of Support rollers with a profiled surface are formed and not contiguous Have contact surfaces, and the distance between the contact surfaces is greater than the length of the contact surfaces, measured in the direction of the distance measurement, is so that given the mechanical properties of the circulating belt between the contact surfaces are bent to absorb the thermal elongation, that the bearing surfaces are offset in the longitudinal direction to the sections of the adjacent bearing surface are arranged and that the Profile of the support rollers in longitudinal section compared to the minimum roller diameter Has sections of larger diameter, and the width (a) in the longitudinal direction of the roll one section is smaller than the distance (b) of the other sections.
  • the surface of the support rollers has sections of larger diameter compared to the minimum roll diameter, the width of the sections being smaller than the spacing of the sections in the longitudinal direction of the roll.
  • the arching of the band is thereby reduced or, instead of a large arching, several small ones occur across the width and length of the circulating band.
  • the arrangement according to the invention provides that the bearing surfaces of one roller are arranged offset to the bearing surfaces of the adjacent roller. This avoids the formation of groove-shaped depressions in the circumferential band, which could otherwise be imprinted on the surface of the steel band.
  • the distance between the sections is larger Diameter at least twice that measured in the longitudinal direction of the roll Section width. This ensures that a sufficiently large area between the support points of the circulating belt on the larger sections Diameter is set so that a controlled reduction of the stresses in Longitudinal direction of the roll is made possible.
  • the sections are larger Roll diameter in the roll longitudinal section an essentially rectangular Shape up.
  • the sections are then essentially to be regarded as disks, the Thickness corresponds to the width of the sections, measured in the longitudinal direction of the roll. This Shape contributes to the better support of the band and offers pointed tapered forms an increased contact area.
  • the shape is essentially rectangular of the sections on the narrow sides are trapezoidal, previously as rings designated sections of larger diameter thus have in the area of the corners beveled or rounded edges. So that the circulating belt can without the previously described advantage of the increased contact surface and better Support effect increasingly follows the pressure directed at the roller axis.
  • the sections of larger diameter form an angle with the roller axis which is less than 90 degrees.
  • the sections previously referred to as disks are not perpendicular to the support roller axis in this embodiment, but are arranged obliquely to this. This further increases the contact area.
  • the sections of larger diameter can also run helically around the support roller axis, as a result of which transverse forces can be derived in an improved manner.
  • the contact surfaces are in the manner offset to each other that the bearing surfaces in a role essentially in the Middle between the support surfaces are arranged in the adjacent role.
  • the sections of larger diameter of adjacent support rollers are arranged at an angle to one another.
  • the "disks" of adjacent support rollers are not only at an angle to the respective roller axis, but also at an angle to one another in the manner of a herringbone pattern.
  • the larger diameter sections can also be designed so that their width is greater than their diameter. The sections of larger diameter then take the form of a short piece of pipe.
  • a support roller 1 is shown in longitudinal section.
  • the support roller extends across the width of the circumferential belt 2, that is also across the conveying direction of the cast thin strip 3.
  • the support roller 1 has sections 4, the Diameter is increased compared to the minimum roll diameter 5.
  • the width a of the sections 4 is smaller than the distance b of the sections 4.
  • FIG. 2 shows the roller I ′ adjacent to the roller 1 from FIG. 1.
  • the track of the sections 4 shown in FIG. 1 is a dashed line (in FIG. 1) drawn and transferred as a dashed line to Figure 2.
  • the trail of Sections 4 of roll 1 thus lie in the middle between sections 4 'of roll 1'.
  • Sections 4 and 4 ' are essentially in the longitudinal stroke shown of rectangular shape. They preferably have bevels on their narrow sides or roundings 6, so that there is a substantially trapezoidal cut arises.
  • the circumferential Volume 2 arched towards the roller axis. This relatively slight curvature is evident in first approximation not on the potted thin strip 3 or is opposite otherwise the bulge extending over almost the entire length of the rollers is negligible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Advancing Webs (AREA)
  • Induction Machinery (AREA)
  • Fish Paste Products (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Coating With Molten Metal (AREA)
  • Road Signs Or Road Markings (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Window Of Vehicle (AREA)
  • Belt Conveyors (AREA)
EP97929093A 1996-06-07 1997-06-05 Bandgiesseinrichtung Expired - Lifetime EP0907440B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19622927A DE19622927C2 (de) 1996-06-07 1996-06-07 Stützrolle und Stützrollenanordnung für Dünnbandgießen
DE19622927 1996-06-07
DE19636696 1996-09-10
DE19636696 1996-09-10
PCT/DE1997/001178 WO1997047414A2 (de) 1996-06-07 1997-06-05 Bandgiesseinrichtung

Publications (2)

Publication Number Publication Date
EP0907440A2 EP0907440A2 (de) 1999-04-14
EP0907440B1 true EP0907440B1 (de) 2004-08-25

Family

ID=26026410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97929093A Expired - Lifetime EP0907440B1 (de) 1996-06-07 1997-06-05 Bandgiesseinrichtung

Country Status (11)

Country Link
US (1) US6206083B1 (pt)
EP (1) EP0907440B1 (pt)
JP (1) JP4083223B2 (pt)
AT (1) ATE274388T1 (pt)
AU (1) AU3334397A (pt)
BR (1) BR9709652A (pt)
DE (1) DE59711874D1 (pt)
DK (1) DK0907440T3 (pt)
ES (1) ES2222516T3 (pt)
RU (1) RU2160651C2 (pt)
WO (1) WO1997047414A2 (pt)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1433031A1 (pt) * 1960-12-08
US3937274A (en) * 1974-05-15 1976-02-10 Hazelett Strip-Casting Corporation Belt back-up apparatus and coolant application means for twin-belt casting machines
CA1192373A (en) * 1981-12-14 1985-08-27 Robert W. Hazelett Method and system for shaping the casting region in a twin-belt continuous casting machine for improving heat transfer and product uniformity and enhanced machine performance
DE3407139A1 (de) * 1984-02-28 1985-05-23 Fried. Krupp Gmbh, 4300 Essen Fuehrungseinrichtung an den giessbaendern einer doppelbandstranggiesskokille
DE3431316C2 (de) * 1984-08-25 1986-01-16 Fried. Krupp Gmbh, 4300 Essen Führungseinrichtung an den Gießbändern einer Doppelbandstranggießkokille
JPS626743A (ja) * 1985-07-02 1987-01-13 Nippon Steel Corp ベルト式連続鋳造機のモ−ルド冷却装置
JPS63192539A (ja) * 1987-02-04 1988-08-09 Nippon Steel Corp 金属薄帯の連続鋳造方法及び装置
JPS63286249A (ja) * 1987-05-20 1988-11-22 Nippon Steel Corp 金属薄帯連続鋳造機におけるベルト支持装置
JPH0636968B2 (ja) * 1987-05-20 1994-05-18 新日本製鐵株式会社 ベルト式連続鋳造機におけるベルト支持装置
JPH07112608B2 (ja) * 1991-03-27 1995-12-06 新日本製鐵株式会社 金属薄板のベルト式連続鋳造方法及び装置
DE4344954C1 (de) * 1993-12-27 1995-06-14 Mannesmann Ag Transportband einer Bandstranggießeinrichtung zum Gießen von Bändern aus Metall

Also Published As

Publication number Publication date
EP0907440A2 (de) 1999-04-14
US6206083B1 (en) 2001-03-27
WO1997047414A3 (de) 1998-02-19
JP4083223B2 (ja) 2008-04-30
DE59711874D1 (de) 2004-09-30
ATE274388T1 (de) 2004-09-15
JP2001515408A (ja) 2001-09-18
ES2222516T3 (es) 2005-02-01
WO1997047414A2 (de) 1997-12-18
DK0907440T3 (da) 2004-09-20
BR9709652A (pt) 1999-08-10
RU2160651C2 (ru) 2000-12-20
AU3334397A (en) 1998-01-07

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