EP0153849B1 - Procédé de laminage à chaud - Google Patents

Procédé de laminage à chaud Download PDF

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Publication number
EP0153849B1
EP0153849B1 EP85301178A EP85301178A EP0153849B1 EP 0153849 B1 EP0153849 B1 EP 0153849B1 EP 85301178 A EP85301178 A EP 85301178A EP 85301178 A EP85301178 A EP 85301178A EP 0153849 B1 EP0153849 B1 EP 0153849B1
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EP
European Patent Office
Prior art keywords
work rolls
strips
rolled
rolling
rolls
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
EP85301178A
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German (de)
English (en)
Other versions
EP0153849A2 (fr
EP0153849A3 (en
Inventor
Itaru Hishinuma
Akio Adachi
Ko Toyoshima
Yoji Utashiro
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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Filing date
Publication date
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Priority claimed from JP59037478A external-priority patent/JPS6114002A/ja
Priority claimed from JP59107553A external-priority patent/JPS60250806A/ja
Priority claimed from JP59204147A external-priority patent/JPS6182907A/ja
Priority claimed from JP59211503A external-priority patent/JPS6192702A/ja
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of EP0153849A2 publication Critical patent/EP0153849A2/fr
Publication of EP0153849A3 publication Critical patent/EP0153849A3/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/13—Modifying the physical properties of iron or steel by deformation by hot working
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/42—Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/28—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/18—Adjusting or positioning rolls by moving rolls axially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/021—Rolls for sheets or strips
    • B21B2027/022—Rolls having tapered ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/02—Roll bending; vertical bending of rolls
    • B21B2269/04—Work roll bending
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/12—Axial shifting the rolls
    • B21B2269/14—Work rolls

Definitions

  • This invention relates to a hot rolling method for avoiding edge build-up and edge drop of rolled strips or plates and is concerned with such a method involving preventing local wear of the work rolls of rolling mills, such as four or six high mills, whilst simultaneously controlling the profiles of the steel strips or plates.
  • a taper end roll rolling method is effective to prevent edge drops with the aid of work rolls of particular geometrical shapes, for example, as disclosed in JP-A-54 024 256.
  • both ends of each of the work rolls include tapered portions in order to prevent the edges of the strips becoming thinner.
  • a work roll shift method is effective for profile controlling as disclosed in JP-A-55 077 903.
  • a pair of work rolls is used wherein each has a tapered portion and the rolls are arranged one above the other with the tapered portions on opposite sides of the rolling path.
  • the work rolls are shifted in the axial direction, before rolling, in accordance with the width of the strips to be rolled.
  • the work rolls 1 progressively wear to form tracks or traces 2 for the strips whose edge portions 2b usually wear deeper than the centre portions 2a as shown in Fig.1.
  • the rolled strip 3 has a sectional profile including at its edges irregular protrusions or ridges p and p' which are referred to as "edge build-up" as shown in Fig.2. It is clearly evident that such an edge build-up causes the greatest difficulty for profile controlling of the strips and for roll-change-free rolling which is rolling with a pair of work rolls over a wide range of sizes of strips or plates to be rolled without changing the rolls. The same holds true when using taper end rolls.
  • a hot rolling method using a hot finishing mill including a pair of axially adjustable work rolls each having a tapered portion at one end of its barrel and arranged one above the other with the tapered portions being on opposite sides of the rolling path and being so axially adjusted as to locate each edge of strip material to be rolled in a roll gap zone determined by the respective tapered portion of one of the work rolls characterised in that , during the course of rolling a sequence of discrete lengths of strip material, each of substantially the same width, in the interval between succeeding lengths said work rolls are cyclically axially displaced relative to each other within a range of displacement such that said edges of the material remain within the roll gap zone delimited by said tapered portions thereby preventing edge build-ups of the material, whereby the upper limit of the cyclical values of the distance from an edge of the material to the transition point between said tapered portion of the work roll nearest to said edge of the material and the central portion of the roll is variably set so as to decrease as the thermal expansion of
  • the amplitude of displacement of the work rolls lies between a maximum where the shapes of the material at the exit side of the work rolls do not exceed a limit value and a minimum where the profile controlling performance of the work rolls for the material is still maintained.
  • the work rolls are finely displaced and simultaneously a bending action is applied to the work rolls in a manner so as to eliminate the bending action on the work rolls caused by the material being rolled by the work rolls.
  • stepwise variation in the displacement of the work rolls per unit number of rolled material is effected during the rolling cycle.
  • the stepwise variation is made smaller in the first half of the rolling cycle and is made larger in the latter half of the cycle.
  • a pair of work rolls 1' which are so called “taper end rolls” each having a taper ground end 4' at one end of a roll barrel 4.
  • the rolls are arranged one above the other with the taper ground ends on opposite sides of the rolling path so as to locate both edges of strips or plates 3 to be rolled in roll gap zones determined by the respective taper ends 4'.
  • E L values to be determined by limit values depending on the shape of the strips determined by the roll stand, where E L is the distance from an edge of the strip to the starting point of the taper ground end, while relief E H of the strip 3 at its edge relative to the taper ground end 4' is constant.
  • the amplitude of displacement of the work rolls is such that the work rolls are displaced to an excessive extent beyond the effective E L value, the shape of the rolled strip at the exit side of the rolls exceeds its limit value making it impossible to carry out the rolling.
  • the profile controlling performance of the work rolls is incapable of controlling crown formation on the rolled strips.
  • the inventors further investigated the effective E L value to achieve a hot rolling method capable of preventing edge build-up of the rolled strips or plates so as to enable profile controlling and roll-change-free rolling to the effected.
  • Fig.4 illustrates the most displaced position of the work rolls when the E L value shown in Fig.3 is increased to its maximum but not exceeding the limit value determined by the shape of the strips at the exit side of the rolls.
  • Fig.5 shows the least displaced position of the work rolls when the E L value is decreased to its minimum but the rolls still maintain their profile controlling performance.
  • Reference numeral 5 denotes back up rolls.
  • Figs.8a, 8b and 8c illustrate one example of variation in sectional profile of strips at the exit side having thicknesses of 2.0 mm and widths of 1,040 mm according to Japanese Industrial Standards (JIS) SPHC continuously rolled by a taper end roll rolling method with a constant E L of 200 mm.
  • JIS Japanese Industrial Standards
  • the profiles were not greatly varied when the tenth strip had been rolled.
  • the twentieth strip had been rolled, remarkable edge build-ups p and p' occurred to maximum heights of as much as 20 ⁇ which made it impossible to continue rolling strips having the same width.
  • Figs.9a-9d illustrate the variation in sectional profile of strips similar to those of Figs.8a-8c and continuously rolled with the work rolls being cyclically shifted by 20 mm per two strips with EL values of 200-100 mm Even after forty-six strips having the same width had been rolled, no perceptible edge build-ups could be recognised.
  • This latter hot rolling method can equalise or mitigate local wear in tracks or traces in the work rolls for strips having the same width.
  • it can effectively maintain sufficient profile controlling effect for preventing edge drops, thereby simultaneously making compatible roll-change-free rolling and profile controlling of the strips.
  • FIG.11a illustrates work rolls 1' positioned at the maximum E L value but not exceeding the limit value determined by the shape of the strips at the exit side of the work rolls.
  • the bending action is applied to the work rolls in such a manner as to eliminate or cancel the bending action acting upon the work rolls as a result of the strip being rolled by the work rolls.
  • One preferred method of applying such a bending action to the work rolls is to apply loads to both journals of the work rolls in transverse directions substantially perpendicular to the axes of the work rolls.
  • the crowns are substantially constant for successive rolled strips.
  • this technique is very advantageous for effecting profile controlling of strips so as to make the crowns of the strips substantially constant and simultaneously allowing roll-change-free rolling (i.e. rolling of a wide range of widths of strip without changing the work rolls).
  • Fig.12 illustrates sectional profiles of successive strips (JIS) SPHC having thicknesses of 2.0 mm and widths of 1,040 mm with a constant E L value of 200 mm according to the prior art.
  • the twentieth strip included remarkable edge build-ups 5' having a height of 20 ⁇ . It was clearly impossible to continue further rolling with the same width strips.
  • Fig.13 illustrates sectional profiles of strips (JIS) SPHC having thicknesses of 2.0 mm and widths of 1,040 mm rolled with an E L value of 100-200 mm.
  • the work rolls were finely cyclically displaced so as to reduce the E L value by 20 mm per two rolled strips without applying any bending action on the work rolls. After fifty strips having the same widths had been rolled, no edge build-up occurred. However, the crowns varied greatly and were larger than those in Fig.12.
  • Fig.14 illustrates sectional profiles of strips (JIS) SPHC having thicknesses of 2.0 mm and widths of 1,040 mm rolled with an E L value of 100-200 mm.
  • the work rolls were finely displaced so as to reduce the E L value by 20 mm per two rolled strips and were subjected to an increasing bending action of 0 to 200 tons per chock as the E L value decreased.
  • This technique can effectively suppress edge build-up on rolled strips or plates without detrimentally affecting the crowns of the strips so as to eliminate the disadvantages in conventional roll-change-free rolling, whereby hot rolling with high accuracy as to thickness can be accomplished.
  • the work rolls 1' When hot rolling is carried out as shown in Figs.11a and 11b, the work rolls 1' will thermally expand from the configuration shown in Fig.15a to that shown in Fig.15b. If the rolling is continued with a constant E L value which is set in an initial rolling stage with less thermal expansion, the centre zones of the rolled strips are rolled to an excessive extent in comparison with the edge zones of the strips to form waves therein, which make it difficult to pass through the work rolls. This is caused by the increased influence of the effect which decreases the crown of the rolled strips.
  • the upper limit of the E L value is determined at a value corresponding to the limit value causing the above mentioned waves in the centre zones of the rolled strips and the E L value is successively reduced depending upon the thermal expansion of the work rolls to determine an effective variable E L value as shown in a line l in Fig.16.
  • the thermal expansion of the work rolls corresponding to the numbers of the rolled strips is preferably measured with actual rolling conditions to previously determine the data of the thermal expansion, on the basis of which the E L values of the rolls are previously determined.
  • the thermal expansion may be experimentally determined with the aid of theoretical thermodynamic equations.
  • variable E L value shown in broken line l is slightly shifted, as shown in curve P in Fig.17 so as to equalise or mitigate the wear of the work rolls to achieve a decrease in the crown and stability of rolled strips.
  • the upper limit value of the E L value is determined with the aid of the pattern or curve P shown in Fig.17.
  • the profiles of the rolled strips are not detrimentally affected by the thermal expansion of the rolls, and the irregular wear in the rolls is equalised or mitigated as the rolling cycle proceeds.
  • the irregular wear would otherwise occur in tracks in the rolls for the strips as shown in Figs.18a and 18b. This effect is particularly remarkable in the case of rolling in an order from wider strips to narrower strips.
  • Figs. 19 and 20a and 20b illustrate results of the rolling according to the invention wherein strips of (JIS) SPHC having thicknesses of 2.0-2.6 mm and widths of 750-950 mm were rolled by means of six roll stands of a finishing mill with E L values of 100-300 mm decreasing depending upon the thermal expansion of the rolls.
  • Fig.19 shows the E L values set in the cycle and the crowns ⁇ of the rolled strips.
  • the plotted crowns are thicknesses at the centres of the rolled strips minus the thicknesses at locations 25 mm inwardly spaced from the edges of the strips.
  • the crowns of the rolled strips were reduced to 35 ⁇ on an average.
  • profiles of the rolled strips became stable as shown in Fig.20a to prevent defective profiles due to irregular wear of the rolls as shown in Fig.20b.
  • thermal crown of the rolls, or the crown of the rolls due to their thermal expansion, which would detrimentally affect the crowns of the rolled strips. It has been known that the variation in crown of the rolls depends not only upon the periods of rolling allowed by each pair of work rolls, the actual rolling time, the water-cooling conditions, and the like, but also on the kind of steel to be rolled, the size of the strips to be rolled, and the like. Moreover, it is known that the phenomenon of crown increase is different in the first and second halves of the rolling cycle.
  • the shift pattern of work rolls are non-variably determined without considering the kind of steel, the period of rolling allowed by one pair of work rolls, and the first and latter halves of the rolling cycle, irregularities in the crowns of the rolled strips unavoidably occur throughout the rolling cycle due to the differences in the increase of the thermal crown of the rolls in their lengthwise directions.
  • the difference ⁇ S in roll diameter between the centre and the edges of the strips to be rolled in the first half of the rolling is relatively small, the crown of the strips becomes large.
  • the difference ⁇ S becomes larger and reduces the crown of the strips, but there is a tendency for the rolled strips to form waves in their centres resulting in defective strips.
  • Fig.21 illustrates the displacement of the work rolls 1' relative to the centre O of the path of the strips or plates.
  • the "shifting distance" of the rolls is defined by the distance x from the centre O of the path of the strips to the centres of the barrels of the work rolls on both the drive and the operation side.
  • the shifting distance x of the rolls is stepwise increased per a predetermined number of rolled strips until the shifting distance x becomes a maximum, for example, 100 mm and thereafter is stepwise decreased per the predetermined number of the strips.
  • a "shift pitch" is defined by the stepwise increase or decrease of the shifting distance of the rolls per unit number of rolled strips or plates in the repetition of the above displacing operations or cyclic roll displacement.
  • the shift pitch should be set at a small value so as to enlarge the thermal crown in the area corresponding to the width of the strips, thereby mitigating the crown of the rolled strips.
  • the profile of the thermal crown varies usually as shown in Fig.24.
  • the thermal crown or difference in roll diameter between the centres and edges of the strips depends upon the number of rolled strips or coils. This relationship is shown in Fig.25 wherein the rolling is effected with the constant shift pitch 40 mm/2 coil according to the procedure in connection with Fig.22.
  • the difference ⁇ S in roll diameter between the centres and edges varies greatly in the first and latter halves of rolling.
  • it is effective for mitigating the crown of the rolled strips to control the difference ⁇ S in the thermal crown in the first and latter halves of the rolling cycle as explained hereinafter.
  • the shift pitch is made smaller to enlarge the difference ⁇ S in the first half of the cycle generally exhibiting small differences ⁇ S, and the shift pitch is made larger to suppress the difference ⁇ S to a small value in the latter half of the cycle, thereby stabilising the difference ⁇ S throughout the rolling cycle.
  • Fig.26 illustrates the difference ⁇ S dependent upon a variable shift pitch shown in a solid line and a constant shift pitch in a broken line.
  • the difference ⁇ S is stabilised as shown in the solid line in Fig.26.
  • the crowns of the rolled strips can be mitigated and irregularities in the crowns of the rolled strips can be reduced throughout the cycle only by providing work rolls with initial curves.
  • the crown of the rolled strip can be effectively reduced.
  • the crown of the rolls becomes larger in an earlier period in the initial half of the rolling so as to reduce the crown of the rolled strips, and becomes constant in the latter half of the rolling so as not to produce defective rolled strips and to reduce the crown of the rolled strips.
  • the roll initial curve should be changed every time the period of rolling or the kind of steel is changed.
  • the difference ⁇ S can be varied by changing the shift pitch. In this manner, this technique can be applied for compensating for the difference in ⁇ S. Accordingly, this embodiment has the advantages of enlarging the use of range of the rolls and of improving the grinding efficiency by unifying the initial curves for several kinds of steel.

Claims (5)

  1. Procédé de laminage à chaud utilisant un laminoir de finition à chaud qui comprend deux cylindres de travail (1') réglables dans la direction axiale, dont chacun possède une partie à section décroissante (4') à une extrémité de son corps cylindrique (4) et qui sont disposés l'un au-dessus de l'autre, dans une position telle que les parties (4') à section décroissante se trouvent de chaque côté de l'axe de laminage et soient réglées axialement de manière à placer chaque bord d'une matière en bande (3) qu'il s'agit de laminer dans une zone de l'entrefer de laminage qui est déterminée par la partie à section décroissante (4') respective de l'un des cylindres de travail, caractérisé en ce que, pendant le cours du laminage d'une séquence de longueurs discrètes de matière en bande, dont chacune a sensiblement la même largeur, dans l'intervalle compris entre deux longueurs successives, lesdits cylindres de travail (1') sont cycliquement déplacés axialement l'un par rapport à l'autre dans une plage de déplacement telle que les bords de la matière restent dans la zone de l'entrefer de laminage qui est délimitée par lesdites parties à section décroissante, ce qui évite les accumulations marginales de la matière, la limite supérieure des valeurs cycliques de la distance (EL) comprise entre un bord de la matière et le point de transition entre ladite partie à section décroissante du cylindre de travail qui est la plus proche dudit bord de la matière et la partie centrale du cylindre, est réglée de façon variable de manière à décroître au fur et à mesure que la dilatation thermique des cylindres de travail s'accroît.
  2. Procédé de laminage à chaud selon la revendication 1, dans lequel lesdits cylindres de travail (1') sont soumis à un déplacement fin et que, en même temps, on applique un effet de flexion auxdits cylindres de travail pour éliminer l'effet de flexion agissant sur les cylindres de travail qui est provoqué par la matière en cours de laminage entre lesdits cylindres de travail.
  3. Procédé de laminage à chaud selon la revendication 2, dans lequel ledit effet de flexion appliqué auxdits cylindres de travail (1') est progressivement augmenté au fur et à mesure de la diminution de la distance (EL) comprise entre un bord de la matière et le point de départ de ladite partie à section décroissante qui est la plus proche dudit bord de la matière.
  4. Procédé de laminage à chaud selon une quelconque des revendications 1 à 3, dans lequel le déplacement axial desdits cylindres de travail (1') par nombre unitaire de matière laminée est modifié par échelons successifs pendant le cycle de laminage.
  5. Procédé de laminage à chaud selon la revendication 4, dans lequel ladite modification par échelons est relativement petite dans la première moitié du cycle de laminage et relativement grande dans la dernière moitié du cycle de laminage.
EP85301178A 1984-02-29 1985-02-22 Procédé de laminage à chaud Expired - Lifetime EP0153849B1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP37478/84 1984-02-29
JP59037478A JPS6114002A (ja) 1984-02-29 1984-02-29 熱間圧延方法
JP107553/84 1984-05-29
JP59107553A JPS60250806A (ja) 1984-05-29 1984-05-29 熱間圧延法
JP204147/84 1984-10-01
JP59204147A JPS6182907A (ja) 1984-10-01 1984-10-01 熱間圧延方法
JP59211503A JPS6192702A (ja) 1984-10-11 1984-10-11 熱間圧延方法
JP211503/84 1984-10-11

Publications (3)

Publication Number Publication Date
EP0153849A2 EP0153849A2 (fr) 1985-09-04
EP0153849A3 EP0153849A3 (en) 1986-02-12
EP0153849B1 true EP0153849B1 (fr) 1992-01-15

Family

ID=27460423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85301178A Expired - Lifetime EP0153849B1 (fr) 1984-02-29 1985-02-22 Procédé de laminage à chaud

Country Status (6)

Country Link
EP (1) EP0153849B1 (fr)
KR (1) KR900009128B1 (fr)
AU (1) AU566417B2 (fr)
BR (1) BR8500894A (fr)
CA (1) CA1261654A (fr)
DE (1) DE3585164D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1228818B2 (fr) † 2001-02-05 2015-09-09 Hitachi Ltd. Procédé de laminage pour laminoir à bandes et équipement de laminage de bandes
US11059083B2 (en) * 2016-06-15 2021-07-13 Arvedi Steel Engineering S.P.A. Mill rolls capable of rolling long kilometers for ESP production line

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Publication number Priority date Publication date Assignee Title
EP0235769B1 (fr) * 1986-03-03 1993-05-12 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir
DE3620197A1 (de) * 1986-06-16 1987-12-17 Schloemann Siemag Ag Walzwerk zur herstellung eines walzgutes, insbesondere eines walzbandes
DE3638331C2 (de) * 1986-11-10 1995-07-13 Schloemann Siemag Ag Walzgerüst zum Walzen von Flachmaterial mit einem Paar von axial verschiebbaren Arbeitswalzen
GB8630797D0 (en) * 1986-12-23 1987-02-04 Davy Mckee Sheffield Rolling of metal strip
GB2202174B (en) * 1987-01-09 1991-07-03 Nippon Steel Corp Method for rolling metal sheets
JP2616917B2 (ja) * 1987-01-24 1997-06-04 株式会社日立製作所 ロールシフト圧延機による圧延方法
GB8822669D0 (en) * 1988-09-27 1988-11-02 Davy Mckee Sheffield Rolling of metal workpieces
DE4105079A1 (de) * 1990-03-26 1991-10-02 Schloemann Siemag Ag Schleifvorrichtung zum nachschleifen von walzen eines walzgeruestes waehrend des walzens
DE4309986A1 (de) * 1993-03-29 1994-10-06 Schloemann Siemag Ag Verfahren und Vorrichtung zum Walzen eines Walzbandes

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DE200426C (fr) *
EP0049798A2 (fr) * 1980-10-15 1982-04-21 Sms Schloemann-Siemag Aktiengesellschaft Laminoir

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JPS517635B2 (fr) * 1971-12-10 1976-03-09
JPS5581009A (en) * 1978-12-14 1980-06-18 Nippon Steel Corp Skin-pass rolling shape control method of cold rolled hoop after continuous annealing and equipment thereof
JPS59110401A (ja) * 1982-12-14 1984-06-26 Ishikawajima Harima Heavy Ind Co Ltd 圧延方法

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Publication number Priority date Publication date Assignee Title
DE200426C (fr) *
EP0049798A2 (fr) * 1980-10-15 1982-04-21 Sms Schloemann-Siemag Aktiengesellschaft Laminoir

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1228818B2 (fr) † 2001-02-05 2015-09-09 Hitachi Ltd. Procédé de laminage pour laminoir à bandes et équipement de laminage de bandes
US11059083B2 (en) * 2016-06-15 2021-07-13 Arvedi Steel Engineering S.P.A. Mill rolls capable of rolling long kilometers for ESP production line

Also Published As

Publication number Publication date
EP0153849A2 (fr) 1985-09-04
KR850007092A (ko) 1985-10-30
KR900009128B1 (ko) 1990-12-22
AU3911085A (en) 1985-09-05
AU566417B2 (en) 1987-10-22
DE3585164D1 (de) 1992-02-27
CA1261654A (fr) 1989-09-26
BR8500894A (pt) 1985-10-22
EP0153849A3 (en) 1986-02-12

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