WO2016128923A1 - Cage de laminage en travers pour tuyaux sans soudure, muni d'un dispositif de guidage latéral interchangeable - Google Patents

Cage de laminage en travers pour tuyaux sans soudure, muni d'un dispositif de guidage latéral interchangeable Download PDF

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Publication number
WO2016128923A1
WO2016128923A1 PCT/IB2016/050724 IB2016050724W WO2016128923A1 WO 2016128923 A1 WO2016128923 A1 WO 2016128923A1 IB 2016050724 W IB2016050724 W IB 2016050724W WO 2016128923 A1 WO2016128923 A1 WO 2016128923A1
Authority
WO
WIPO (PCT)
Prior art keywords
guides
rolling
shoe
shoe guide
rotatable
Prior art date
Application number
PCT/IB2016/050724
Other languages
English (en)
Inventor
Ettore Cernuschi
Claudio Maria SCALMANA
Original Assignee
Danieli & C. Officine Meccaniche S.P.A.
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
Application filed by Danieli & C. Officine Meccaniche S.P.A. filed Critical Danieli & C. Officine Meccaniche S.P.A.
Priority to RU2017131079A priority Critical patent/RU2678625C1/ru
Priority to CN201680009137.0A priority patent/CN107206441B/zh
Priority to DE112016000717.5T priority patent/DE112016000717B4/de
Publication of WO2016128923A1 publication Critical patent/WO2016128923A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/04—Rolling basic material of solid, i.e. non-hollow, structure; Piercing, e.g. rotary piercing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/02—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills
    • B21B19/10—Finishing, e.g. smoothing, sizing, reeling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/08—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-force

Definitions

  • the field of the invention is the manufacture of seamless rolled pipes using a cross-rolling rolling stand.
  • a rolling operation of seamless pipes is carried out in several steps, comprising the perforation step, the rolling step, also defined as the finishing step, and the calibration step to the final diameter required.
  • oblique rolling mills having working rolls with skew axes, which are also simply called oblique rolling mills.
  • the working rolls in these rolling stands generate the feed of the body being rolled with a helical motion.
  • Oblique rolling mills, also called cross rolling mills, are generally of the single stand type with two or three working rolls.
  • the piece to be rolled entering the rolling mill may be solid, i.e. it may be a billet, and in this case the rolling mill is a perforator, or the material to be processed is a hollow body, which was previously perforated, and in this case the rolling stand is called elongator.
  • the preferred arrangement over the last 20 years is the one in which the rolls are substantially arranged vertically one above the other.
  • two lateral guide devices are always horizontally provided, which are apt to contain the expansion of the body being rolled, i.e. the variation in outer diameter between the inlet and the outlet of the rolling stand.
  • the function is always provided of approaching and moving away the guide devices to/from the rolling axis in radial direction.
  • the adjustment is likewise provided of the lateral guides also in the longitudinal direction parallel to the rolling axis, and in the vertical direction.
  • Rolling stands are known with fixed lateral guides mounted on a turret, which is rotatable by 180 °, so as to allow the fixed guide, once it is worn, to reach a substitution position and to simultaneously bring a new guide into the working position.
  • first rolling operations are two fixed shoe guides and in specific second rolling operations are two rotatable disc guides which are rotatable about a vertical axis, each of the two lateral guides being arranged at a side of the rolling axis R,
  • two motors for generating a rotation motion of the two rotatable disc guides, two rotatable turrets which are rotatable about a vertical axis thereof, for positioning the lateral guides, comprising couplings for fastening the fixed shoe guides and alternatively for fastening the rotatable disc guides, and transmission means for transmitting the rotary motion generated by the motors to the two rotatable disc guides,
  • the aforesaid object is achieved by means of a method for substituting the lateral guides of a rolling stand, wherein there is provided a rolling stand of the invention on which two shoe guide-holders with one or more respective fixed shoe guides are mounted, comprising the following steps
  • the advantage results of mounting the rotatable turret so as to substitute the shoe guides more easily and quickly, and to cool down, by means of a closed circuit, the shoe guide-holder assembly to which the shoe guides themselves are fastened in removable manner.
  • the continuous, or otherwise controlled, cooling of the shoe guide-holders improves the duration of the shoe guide which, in the absence of cooling, normally lasts a few hundreds of pieces before showing significant wear, fire cracks or breaks.
  • the versatility of the rolling stand of the invention allows an increased variety of rolled products to be obtained with the same stand, as it can be used in various operating conditions.
  • the advantage of the fixed shoe guide with respect to the rotating one is an improved containment of the material being rolled and an improved cylindrical shape of the rolled body at the rolling mill outlet.
  • the disadvantage of using the fixed shoe guide is the shorter duration with respect to the rotatable disc guide and the need to compensate for the wear by periodically approaching the shoe guide to the rolling axis, and therefore it is preferable to use lateral rotatable disc guides in certain operating conditions by substituting the fixed ones with a quick and simple operation.
  • figure 1 depicts a front view, in the direction of the rolling axis, of a rolling stand according to the invention in a first operating configuration
  • figure 2 depicts a front view of a detail of the rolling stand in figure 1 ;
  • figure 3 depicts a top view of a detail of the rolling stand in figure 1 , in a first operating position
  • figure 4 depicts a top view of another detail of the rolling stand in figure 1 , in a second operating position;
  • figure 5 depicts a plan view of a detail of the rolling stand in figure 1 ;
  • figure 6 depicts a front view of an enlarged, exploded detail of the rolling stand in figure 1 ;
  • figure 7 depicts a sectional view on a vertical plane parallel to the rolling axis, of the rolling stand in figure 1 ;
  • figure 8 depicts the axial section, along a vertical plane, of a detail of the rolling stand in figure 1 ;
  • figure 9 depicts a side view of the detail in figure 8;
  • figure 10 depicts the axial section along a vertical plane, of another detail of the rolling stand in figure 1 ;
  • figure 11 depicts a front view in the direction of the rolling axis, of a rolling stand according to the invention in a second operating configuration
  • figure 12 depicts a side view of the stand in figure 11 ;
  • figure 13 depicts a plan view of the stand in figure 11 ;
  • figure 14 depicts a front view, in the direction of the rolling axis, of a rolling stand according to the invention in a configuration of preparing to change the rotatable disc lateral guides;
  • figure 15 depicts a plan view of the stand in figure 14;
  • figure 16 depicts a front view in the direction of the rolling axis, of a rolling stand according to the invention in a configuration where the rotatable disc lateral guides are substituted by fixed lateral guides;
  • figure 17 depicts a plan view of the stand in figure 16;
  • figure 18 depicts a front view in the direction of the rolling axis, of a rolling stand according to the invention in a configuration where fixed lateral guides are inserted, and before reaching the operating position;
  • figure 19 depicts a plan view of the stand in figure 18.
  • the rolling stand 1 defines the rolling line R, which coincides with the axis Y of the Cartesian system of spatial coordinates X, Y, Z.
  • the rolling stand comprises a frame 2, which incorporates two vertical working rolls 3, 4, i.e. arranged above and below the rolling axis R, between which the element to be rolled 5 passes, two fixed lateral guides also called shoe guides 6, 7.
  • the two shoe guides 6, 7 are fastened on two respective shoe guide-holders 8, 9, which are mounted on the rotatable turrets 10, 11 , respectively.
  • Figure 3 shows the rotatable turret 10 which allows the rotation of the shoe guide-holder 8 about a vertical axis, to which shoe guide-holder 8 the two shoe guides 6 and 6' are fastened in intermediate position toward the substituting position.
  • the shoe guide 6 In order to substitute the shoe guide 6 subsequent to its wear, it is provided to remove it from its operating position where it contains the element to be rolled 5, and to substitute it with a second spare shoe guide 6' by bringing it into a change and substitution position. This occurs by causing the shoe guide-holder 8 to be rotated by 180 ° so as to position the shoe guide 6' in the operating position against the element to be rolled 5 after having radially moved the rotatable turret 10 away from its operating position.
  • the structure comprising the rotatable turret 10, the shoe guide-holder 8 and other accessory elements is supported by a base 12 which has three degrees of freedom required to allow the shoe guide-holder 8 and the operating shoe guide 6 to carry out movements along the directions X, Y, Z in order to be positioned on the proper resting zone.
  • the base 13 allows the movements along the directions X, Y, Z of the second structure comprising the rotatable turret 11 and the shoe guide-holder 9.
  • the rotatable turret 11 allows the shoe guide-holder 9 to perform the same functions described above for the shoe guide-holder 8.
  • Figure 4 shows the shoe guide-holder 9 in its working position. A further description in greater detail of the shoe guide-holder 9 is not required as it is entirely equal to the one of the shoe guide-holder 8 and is apparent to those skilled in the art.
  • the movement of base 13 along the three axes X, Y, Z occurs due to the two sliding guides 14 and 15, which are arranged in a "V" configuration like opposite inclined planes.
  • the shoe guide 7 can carry out the movements required in the three spatial directions.
  • the sliding of base 13 along axis X i.e. the axis perpendicular to the plane in figure 7, is achieved by causing the surfaces of the guides 14 and 15 to slide in direction X.
  • the stroke along axis X which the base 13 can perform is rather large, in the range of 150 mm.
  • This stroke is the operating one during the rolling, while base 13 and all the components carried thereby can slide by a much greater stroke which allows the shoe guide-holder 9 to be moved away from the rolling line R by the amount required to detach it from the stand, as explained below in the description of the process of substituting the lateral guides.
  • the two locks 16, 17, or blocks, which have two inclined sides which carry the guides 14 and 15, can be approached or moved away to/from each other parallel to axis Y by means of the action of two respective jacks 18, 19.
  • the structure which comprises the shoe guide-holder 9 and the rotatable turret 11 to carry out a movement both in direction Z, i.e. upward in the figure, and in direction Y, i.e. along the rolling direction.
  • the resulting movement of the shoe guide 7 along direction Z has a limited stroke, i.e. of about +/- 12 mm.
  • This upward vertical movement is achieved by pushing the two locks 16, 17 in convergent direction toward each other using the jacks 18, 19, while the downward vertical movement occurs by moving the two locks 16, 17 away from each other.
  • the movement of the structure which carries the shoe guide-holder 9 and the rotatable turret 11 in the direction parallel to axis Y is achieved by means of an actuation of the jacks 18 and 19 in the same direction.
  • the stroke allowed in the direction parallel to axis Y is about +/- 50 mm.
  • the two shoe guide-holders 8, 9 are provided with a forced liquid circulation circuit for cooling the shoe guides 6, 6' and 7, T which is now described only for the shoe guide-holder 8, the other shoe guide-holder 9 being of perfectly equal and symmetrical make-up with respect to the rolling axis R.
  • Each shoe guide 6, 6' is provided with a delivery pipe of the cooling liquid and a discharge pipe of the cooling liquid, typically water, although other liquids used in this field of the art are not excluded.
  • the shoe guide-holder 8 has four pipes 20, 21 , 22, 23, there being two shoe guides 6, 6' mounted thereon.
  • the number of conduits would be six.
  • the shoe guide 6 there is pipe 20, which brings the cold water, and pipe 23, which discharges the hot water after it has cooled down the shoe guide 6.
  • the shoe guide-holder 8 includes two fastening units 24, 25, or blocks, one of which is shown in figures 1 and 2, while the first fastening unit is hidden in these drawings.
  • the shoe guide-holder 9 has two anti-rotation units 26, 27, of which unit 26 is shown in figure 7, while the second anti-rotation unit is shown in figures 1 , 2 and 7.
  • the anti-rotation units 26, 27 are shown in greater detail in figures 8, 9, 10. These anti-rotation units serve the function of holding the shoe guide 7, which is operational in a given moment, in contact position with element 5 during the rolling, and of generating reaction forces against the rotation torque which the pressure contact of the shoe guide 7 on element 5 being laminated generates during the rolling.
  • the anti-rotation unit 26 shown in detail with a section on a vertical plane in figure 8 and with a side view in figure 9, comprises an outer cylinder 28 which contains therein a hydraulically-controlled sliding piston 29. Piston 29 contains a conduit for the passage of the cooling liquid therein. When it is in the operating position where it engages the shoe guide-holder 9, the anti-rotation unit 26 has piston 29 raised to engage a conduit connected with one of the conduits, which are entirely similar to the conduits 20, 21 , 22, 23 described above for the shoe guide-holder 9.
  • On-off valves are provided on cooling liquid delivery in the anti-rotation units 24, 25, 26, 27 to avoid the water from leaking during the movement of the shoe guide-holders 8 and 9 for substituting a worn shoe guide with the other new one mounted on the same shoe guide or for substituting the shoe guide-holders with the lateral rotating guides 50, 51 as described below.
  • the on-off valves are open only when the shoe guide-holders 8, 9 are blocked in operating position, while the on-off valves are in closed position in the other cases.
  • the anti-rotation unit 26, which is arranged on the side of the shoe guide-holder 9 which does not generate a reaction force to the torque created by the rolling, i.e. the anti-rotation unit arranged on the side downstream of the shoe guide-holder considering the rolling direction has, at the end of piston 29, a flat face 30 which is inclined with respect to the vertical in order to compensate for the clearances created between piston 29 and the shoe guide-holder 9, since the torque acting on the shoe guide-holder on such a side tends to generate a distancing.
  • the inclined face 30 matches with a corresponding inclined face arranged on the support block 38' of the shoe guide-holder 9. If a detachment is created between the contacting faces during the rolling due to an increase in the clearances, piston 29 is raised and the contact between the inclined faces is restored.
  • an anti-rotation device of piston 29 is provided, made with a locking screw 39 which prevents the rotation thereof about its axis, while allowing the axial sliding of piston 29.
  • the anti-rotation unit 27, which is arranged upstream of the shoe guide-holder, is entirely similar to unit 26, with a cylinder 28' which comprises a hydraulic piston 29' in which however the end does not have an inclined contact plane, such a unit being the one that creates the reaction force against the torque generated by the contact of the shoe guide 7 with the object 5 to be rolled.
  • an anti-rotation device of piston 29' is provided, which is made with a locking screw 39' which prevents piston 29' from rotating about the axis thereof inside cylinder 28'.
  • the rolling stand 1 when the fixed shoe guides are mounted thereon.
  • the rolling stand 1 can perform rolling operations also with lateral guides consisting of rotatable disc guides, hence other components are also provided in the rolling stand 1 , which contribute to the operation thereof in this different mode.
  • the rolling stand 1 comprises a motor 40 and a reduction unit 41 for reducing the motion transmitted by motor 40 to the rotatable turret 10.
  • motor 40 does not supply power and the reduction unit 41 is blocked to contribute to contrasting the torque discharged onto the rotatable turret 10 due to the forces acting on the shoe guide- holder 8 during the rolling.
  • the rotatable turret 10 is capable of carrying the shoe guide-holder 8, preventing the rotation in the above-described operating mode, and is also capable of operating in a second operating mode where a rotatable disc guide 50 is mounted thereon, which is put into rotation by motor 40, through the reduction unit 41 .
  • a significant rotation value is involved since the tangential speed of the outer surface of the disc guide may be about double the feed speed of the piece being rolled.
  • the part in which the rotatable turret 11 and the rotatable disc lateral guide 51 are arranged being formed in a perfectly similar manner as the one described above, the description thereof is not repeated.
  • the working position of the rolling stand 1 with the lateral rotatable disc guides 50, 51 mounted is illustrated by the three views in figures 11 , 12, 13.
  • the two motors 40, 40' are engaged and the motion is transmitted to the two respective disc guides 50, 51 by means of the reduction units 41 , 42.
  • the two disc guides 50, 51 are to be substituted with the fixed shoe guides 6, 7 mounted on the shoe guide-holders 8 and 9, they must be stopped and, if needed, cooled.
  • the four anti-rotation units 24, 25, 26, 27 have the pistons 29, 29' - in addition to the other two not shown in the figures- lowered, in a position which does not interfere with the volume of the rotatable disc guides.
  • the bases 12 and 13 with the rotatable disc guides 50, 51 and the other components which are integral with the bases 12 and 13, are caused to slide in the direction of the arrows X1 , X2, thus positioning the two disc guides 50, 51 in free position in order to grasp them with suitable means, e.g. a crane, and in order to transport them to the maintenance zone or to another appropriate zone.
  • suitable means e.g. a crane
  • the position of the rolling stand 1 shown in figures 16 and 17 shows the extracting position of the disc guides 50, 51 and the step of transporting the two shoe guide- holders 8, 9 toward the stand.
  • the anti-rotation units 24, 25, 26, 27 still remain in the lowered position.
  • the shoe guide-holders 8, 9 are transported toward the stand and inserted in the respective turret, while the rotatable disc guides 50, 51 are taken away by means of suitable means, such as a bridge crane.
  • the reduction units 41 , 42 are blocked, since there is no movement to be transmitted from the motors 40, 40', in this configuration.
  • the anti-rotation units 24, 25, 26, 27 are raised into the locking position of the two shoe guide-holders 8, 9 and the cooling circuits are connected as described above.
  • Figures 18 and 19 show the rolling stand 1 with the shoe guide-holders 8, 9 inserted on the respective rotatable turrets 10, 11 before the shoe guides 6, 7 are approached to the rolling position, which is shown in figure 1 .
  • One advantageous variant of the stand of the invention includes the presence of only two anti-rotation units in the rolling stand, one for each of the two shoe guide- holders 8, 9.
  • the anti-rotation unit 27 is kept and the anti-rotation unit 26 is eliminated.
  • the anti-rotation unit 25 is kept and the anti-rotation unit 24 is eliminated, it being strictly required to create a reaction to the torque generated during the rolling, which is generally kept in the same direction.
  • the stand is more versatile because, depending on the needs dictated by the product to be rolled, it can mount both fixed lateral guides and rotatable disc lateral guides, one substituting the other, and the substitution occurs in shorter times.
  • the guides have means for adjusting the movement thereof along the axes X, Y, Z both when the stand mounts the fixed lateral guides and the motorized rotatable disc guides.
  • the operating life of the fixed shoe guides is also extended by the improved cooling ability with which the rolling stand is provided.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

L'invention concerne une cage de laminage comprenant deux cylindres de laminage (3, 4) ayant des axes de travers, comprenant deux tourelles rotatives (10, 11) qui peuvent être mises en rotation par des moteurs (40, 40') et peuvent être bloquées dans une position fixe. Des guides latéraux fixes (6, 7) et des guides latéraux en forme de disque rotatifs (50, 51) sont en prise sur les tourelles rotatives de manière interchangeable en fonction des besoins de fonctionnement. Les guides latéraux fixes ont un circuit de refroidissement à circulation forcée.
PCT/IB2016/050724 2015-02-11 2016-02-11 Cage de laminage en travers pour tuyaux sans soudure, muni d'un dispositif de guidage latéral interchangeable WO2016128923A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
RU2017131079A RU2678625C1 (ru) 2015-02-11 2016-02-11 Клеть стана поперечной прокатки для бесшовных труб, оснащенная сменным поперечным направляющим устройством
CN201680009137.0A CN107206441B (zh) 2015-02-11 2016-02-11 具有可更换的侧向引导设备的用于无缝管的交叉轧制式轧制机架
DE112016000717.5T DE112016000717B4 (de) 2015-02-11 2016-02-11 Querwalzgerüst für nahtlose Rohre mit austauschbarer seitlicher Führungsvorrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20150191 2015-02-11
ITMI2015A000191 2015-02-11

Publications (1)

Publication Number Publication Date
WO2016128923A1 true WO2016128923A1 (fr) 2016-08-18

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ID=52633433

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/050724 WO2016128923A1 (fr) 2015-02-11 2016-02-11 Cage de laminage en travers pour tuyaux sans soudure, muni d'un dispositif de guidage latéral interchangeable

Country Status (5)

Country Link
CN (1) CN107206441B (fr)
AR (1) AR103659A1 (fr)
DE (1) DE112016000717B4 (fr)
RU (1) RU2678625C1 (fr)
WO (1) WO2016128923A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108287502A (zh) * 2018-01-18 2018-07-17 西安应用光学研究所 一种光电转塔断电触发延时自锁控制系统
DE102021200391A1 (de) 2021-01-18 2022-07-21 Sms Group Gmbh Walzgerüst mit variabler seitlicher Führungseinrichtung

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US4387584A (en) * 1980-10-21 1983-06-14 Nippon Kokan Kabushiki Kaisha Steel pipe rolling mill
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Publication number Priority date Publication date Assignee Title
US3845646A (en) * 1971-11-11 1974-11-05 Mannesmann Roehren Werke Ag Diagonal rolling mill
GB1441472A (en) * 1973-01-19 1976-06-30 Mannesmann Meer Ag Rolling mills
JPS5744405A (en) * 1980-08-29 1982-03-12 Nippon Kokan Kk <Nkk> Replacing apparatus for disk shoe of piercing machine
US4387584A (en) * 1980-10-21 1983-06-14 Nippon Kokan Kabushiki Kaisha Steel pipe rolling mill
JPS59169607A (ja) * 1983-03-18 1984-09-25 Ishikawajima Harima Heavy Ind Co Ltd 穿孔機
EP1022068A1 (fr) * 1997-10-14 2000-07-26 Sumitomo Metal Industries Limited Laminoir perceur

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108287502A (zh) * 2018-01-18 2018-07-17 西安应用光学研究所 一种光电转塔断电触发延时自锁控制系统
CN108287502B (zh) * 2018-01-18 2020-03-24 西安应用光学研究所 一种光电转塔断电触发延时自锁控制系统
DE102021200391A1 (de) 2021-01-18 2022-07-21 Sms Group Gmbh Walzgerüst mit variabler seitlicher Führungseinrichtung
WO2022152558A1 (fr) 2021-01-18 2022-07-21 Sms Group Gmbh Cage de laminoir à dispositif de guidage latéral variable

Also Published As

Publication number Publication date
DE112016000717B4 (de) 2020-01-23
RU2678625C1 (ru) 2019-01-30
CN107206441B (zh) 2019-03-19
AR103659A1 (es) 2017-05-24
DE112016000717T5 (de) 2017-11-09
CN107206441A (zh) 2017-09-26

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