EP3405302A1 - Rouleau de guidage de produit filé pour le guidage d'un produit filé métallique dans une installation de coulée continue - Google Patents

Rouleau de guidage de produit filé pour le guidage d'un produit filé métallique dans une installation de coulée continue

Info

Publication number
EP3405302A1
EP3405302A1 EP17700969.3A EP17700969A EP3405302A1 EP 3405302 A1 EP3405302 A1 EP 3405302A1 EP 17700969 A EP17700969 A EP 17700969A EP 3405302 A1 EP3405302 A1 EP 3405302A1
Authority
EP
European Patent Office
Prior art keywords
axis
roller
cooling
cooling fluid
rolling bearing
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
EP17700969.3A
Other languages
German (de)
English (en)
Other versions
EP3405302B1 (fr
EP3405302C0 (fr
Inventor
Josef Guttenbrunner
Guenther Deibl
Michael Starrermair
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.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria GmbH
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 Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Publication of EP3405302A1 publication Critical patent/EP3405302A1/fr
Application granted granted Critical
Publication of EP3405302B1 publication Critical patent/EP3405302B1/fr
Publication of EP3405302C0 publication Critical patent/EP3405302C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B22D11/12—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

  • Strand guide roller for guiding a metallic strand in a continuous casting plant
  • the invention relates to a strand-guiding roller for guiding a metallic strand in a continuous casting plant and to a process for cooling a strand-guiding roll.
  • a metallic strand formed in a mold is guided in a strand guide, supported and further cooled.
  • the supports and Füh ⁇ ren of the semi-solidified or solidified strand is carried out by so-called strand guiding rollers.
  • the strand can be cooled by cooled strand guide rollers.
  • roller shells a Strangnote ⁇ approximately roll are arranged on a common rotating axis, which is like supported at their ends and between the roller shells with roller bearings, wherein the roller shells are Peripherals cooled, ie wherein the roller shells directly (with a cooling ⁇ liquid usually with water).
  • the strand guide rollers are each formed as peripherally cooled full rolls, at the ends of the shaft stub with rolling bearings are supported.
  • the bearings of the strand guide rollers are usually in bearing blocks, which are cooled by a water cycle. In the process, care must be taken to ensure that no water gets into the bearings. This is usually achieved by a barrier lubrication, is set ⁇ for the additional fat, ie fat that is not needed for the actual function of the bearings. This fat comes out, ver ⁇ mixes with the cooling water and must be separated with a high technical effort again from the water.
  • the roller shells are usually provided with another Cooled water cycle, the cooling water is introduced by means of a separate rotary inlet, which is a complex and sensitive ⁇ component for the function of Strangu ⁇ tion role.
  • the invention has for its object to provide a Strangure ⁇ tion role for guiding a metallic strand in a continuous casting, which works reliably even in lubricant-free operation.
  • a method for operating the strand guide roller according to the invention is angege ⁇ ben.
  • a strand-guiding roll according to the invention for guiding a metallic strand in a continuous casting installation comprises a fixed axis, at least one an axle portion of the axle coaxially surrounding the roll shell, and for each Rol ⁇ lenmantel at least one extending along an inner surface of the Rol ⁇ lenmantels cooling channel for receiving adeflu- ids and for cooling the roll mantle.
  • the strand-guiding roller for each roller casing has at least one roller bearing arranged between the axle section surrounded by the roller casing and the roller casing for mounting the roller casing rotatably about the axis.
  • the rolling bearing is adjacent to a cooling channel and has a permeable for cooling fluid and to open the cooling channel bearing interior, so that the rolling bearing in operation, the cooling fluid may be flowing through ⁇ .
  • the strand guiding rollers according to the invention are thus designed as a "shell roles", the roller shells are rotatably mounted about a fixed axis ⁇ standing.
  • Such Strangure ⁇ approximately roll are much simpler and thus more cost-effective and maintenance-friendly than strand guide roll with roll shells firmly attached to a rotatable shaft.
  • a bearing block cooling can be omitted. Through the cooling passage is achieved in a simple manner a peripheral ⁇ cooling of the strand guide roller without problems need to be addressed by the peripheral cooling usually in the use of conventional roller bearings and / or rotary axes.
  • the strand guide roller having a fixed axis namely, no aufican ⁇ ended and repair-prone rotary inlet for the introduction of cooling liquid is required. Since the rolling bearings are designed to be permeable to the cooling fluid, they need not be protected against the entry of cooling fluid such as cooling water as conventional rolling bearings. In particular, eliminating the ⁇ se storage of the roll coats the need to again with consuming water mixing grease, which is used to protect bearings from the ingress of cooling water, again consuming to separate from the water.
  • the peripheral cooling also allows the use of the strand guide roller for a dry casting operation, that is, for a continuous casting without cooling the strand by spraying with cooling liquid.
  • the invention provides that the rolling bearing is designed for operation in a lubricant-free (i.e., without a grease or grease)
  • Oil lubrication environment is suitable.
  • a grease or oil lubrication system can be omitted, whereby the environmental load is reduced and the maintenance friendliness of the strand guide roller is further improved.
  • the rolling bearing according to the invention is made of a corrosion-resistant steel such as martensitic stainless steel (eg X46Cr13, material No. 1.4034, X90CrMoVl8, material No. 1.4112, or Xl05CrMoVl8, Material number . 1.4125), or an austenitic, corrosion ⁇ resistant stainless steel manufactured.
  • martensitic stainless steel eg X46Cr13, material No. 1.4034, X90CrMoVl8, material No. 1.4112, or Xl05CrMoVl8, Material number . 1.4125
  • austenitic, corrosion ⁇ resistant stainless steel eg X46Cr13, material No. 1.4034, X90CrMoVl8, material No. 1.4112, or Xl05CrMoVl8, Material number . 1.4125
  • the rolling bearing is protected against corrosion caused by the contact of the rolling bearing with the cooling fluid.
  • each roller bearing has a voltage applied to a roller shell and extending around the axis of the outer ring, a voltage applied to the axis and extending around the axis inner ring and a plurality of arranged between the outer ring and the inner ring rolling elements.
  • the rolling bearing is designed as a so-called spring roller bearing, wherein the outer ring and / or the inner ring and / or the rolling elements of the rolling bearing are elastically deformable in at least one orthogonal to a longitudinal axis of the axis direction.
  • the roller bearing in a direction transverse to the axial direction on a certain elasticity, so that the jamming of the bearing is prevented even in lubricant-free operation.
  • a grease filling can be introduced so that the rolling bearing functions reliably even during the demanding commissioning phase.
  • This embodiment of the invention provides for the storage of the roller shell particularly suitable, from the cooling fluid through ⁇ flowable before rolling bearings.
  • rolling bearings with elastically deformable outer rings, inner rings and / or rolling elements, these bearings can be particularly flexible and fit between the fixed axis and a roller shell of a strand guide roller. As a result, for example, caused by temperature fluctuations distance changes or elastic deformations are balanced by loading between the fixed axis and the roller shell.
  • Rolling with circular cylindrical rolling elements having a cylinder axis parallel to a longitudinal axis of the axis advantageously allow a stable due to the larger L Lucassaus ⁇ the rolling elements against, for example, spherical rolling elements and the rolling bearing punctually less be ⁇ bearing bearing of the roll shell.
  • cooling channel is sealed on a front side of the strand guide roller by a seal holder with egg ⁇ ner seal between the roller shell and the Dichtungshal ⁇ sion.
  • the roller shell advantageously in the radial direction outside the seal on a connected to the cooling channel annular cavity.
  • the particularly temperature-sensitive dy ⁇ namic seal is reliably cooled and extends its durability.
  • a further embodiment of the invention provides at least ei ⁇ NEN along an inner surface of a roller shell durau ⁇ fenden cooling channel.
  • at least one cooling channel may be formed as a bore in the roller casing .
  • adeka ⁇ nal runs at least helically about the axis along an inner surface ei ⁇ nes roll shell and / or at least one cooling passage extends alternately tangentially around which and subsequently in axia ⁇ ler direction.
  • a uniform cooling of the entire surface of a roll shell can be achieved advantageous ⁇ way.
  • a Strömungsge ⁇ speed of the cooling fluid can be adjusted so that the best possible removal of heat from the surface of the roller mantels takes place.
  • Radial or annular cooling channels running around the axis have the advantage of being geometrically simpler and thus also easier to implement.
  • a further embodiment of the invention provides at least one tube-like cooling fluid guide sleeve arranged between the axle and a roller casing, which has at least one groove-like cooling channel recess facing the roller casing for forming a cooling channel.
  • This embodiment of the invention advantageously makes it possible to form cooling channels for cooling thereof by means of suitably designed cooling fluid guide sleeves on roller shells.
  • a further embodiment of the invention provides that the axis has at least one fillable with cooling fluid cooling cavity, which is connected with at least one storage compartment of a rolling ⁇ bearing and with at least one cooling channel, so that the cooling cavity, the bearing compartment and the cooling channel a continuous receiving space for Forming cooling fluid.
  • a further embodiment of this embodiment of the invention provides that all the cooling channels, bearing internal spaces of Wälzla ⁇ ger and cooling cavities are connected to a contiguous receiving space for the cooling fluid.
  • each roller shell is rotatably supported by two rolling bearings relative to the axis.
  • a further embodiment of the invention provides that a plurality of roller shells are arranged one behind the other along the axis.
  • each roller shells may be reduced, which advantageously simplifies the manufacture and transport of the roller shells and allows the use of moderate manufacturedleg ⁇ ter rolling bearing for supporting the roller shells at the festste- Henden axis. Also allows Strangure ⁇ approximately roll with a plurality of successively arranged roller shells an intermediate support of the shaft in the areas between two neighboring roller shells and thereby reducing deformation by the load of the Rollenmän- tel during operation in a continuous casting plant.
  • a continuous casting plant according to the invention has several behind ⁇ successively arranged strand guiding rollers according to the invention with the above advantages.
  • the inventive object is also achieved by the procedural ⁇ ren for cooling a strand guide roller having a cooling fluid according to claim 10th
  • the cooling fluid is introduced from a coolant supply into an axially arranged axis cavity of the stationary axis of the strand guide roller. Since the axis is at a standstill ⁇ , this can without complicated and maintenance-intensive Turning done.
  • the cooling fluid is diverted into at least one substantially radially disposed Radialöff ⁇ voltage of the strand guide roller.
  • the cooling fluid is directed from the typically centrally arranged hollow space in the direction of the roller shell.
  • the cooling ⁇ fluid is introduced into a ring cavity, whereby the seal is cooled via the web between the annular cavity and the seal.
  • the rolling bearing preferably ⁇ in the axial direction, flows through. This cools the bearing and removes any wear from the bearing.
  • the cooling fluid is introduced into an arranged between the roller shell and the stationary axis coolant channel and the cooling passage flows through, whereby the roller shell is suit ⁇ cooled.
  • the cooling medium is supplied through a plurality before Trains t ⁇ at least four radial openings the annular cavity. This ensures a uniform speed ⁇ profile in the flow through the bearing.
  • the cooling medium flows through the coolant channel in the axial and in the tangential direction along a cooling fluid guide sleeve.
  • a high flow rate is achieved, which in turn has a favorable effect on the heat dissipation from the hot roller shell.
  • ⁇ a uniform temperature distribution of the roll shell in the axial and tangential direction is achieved.
  • a second rolling bearing is advantageously flowed through and the cooling fluid introduced into a second annular cavity, then the cooling fluid is diverted into a further at least one radial Radialöff ⁇ tion, redirected from the radial direction in an axial direction and in the axial axis cavity initiated.
  • the supply and discharge of the cooling fluid is separated by a plug of the axial ⁇ cavity.
  • the derivative can either be on the same page as the introduction or on the opposite side of the introduction.
  • FIG. 3 shows a detail of a sectional view with a side view of another strand guide roller. Corresponding parts are provided in the figures with the same reference numerals.
  • FIG. 1 shows a partial side view of an ERS ⁇ th embodiment of a strand guide roller 1, the strand guide roller 1 is shown broken in order to make the interior of the strand guide roller 1 visible, and wherein the interior is shown in section.
  • the path of the cooling fluid is represented in the figures by arrows.
  • the strand guide roller 1 comprises a fixed axle 3, a roller casing 5, rolling bearings 7, adefluidleithgg- se 11, seal holders 13, thrust washers 15, support blocks 17, sealing rings 19, a seal 20 and a Schmutzdich ⁇ tion 21, at least one plug 24th anddefluidzu ebookun- gene 26.
  • a portion of the strand guide roller 1 and thedefluidleith 11 are each in the range first end of the strand guide roller 1 shown. In this section are each only a rolling bearing 7, a seal holder 13, a thrust washer 15, a support block 17, a plug 24 and a cooling fluid supply 26.
  • a first end opposite the second end of the strand guide roller 1 is like the first shown in Figure 1 En ⁇ de and in particular also each comprises a roller bearing 7, a seal holder 13, a thrust washer 15, a support block 17, a cooling fluid supply 26 and optionally another plug 24.
  • the axis 3, the roller shell 5 and a support block 17 are shown in FIG shown broken.
  • the axis 3 is formed as a tubular hollow body with an annular cross-section which surrounds an axially extending circle cylindrical axis cavity 28.
  • Arranged within the axial cavity 28 is at least one plug 24 defining the axial cavity 28 defining a cooling cavity 30 between it and a cooling fluid supply 26 in the axial cavity 28, into and out of which a cooling fluid passes through an orifice (not shown) in the cooling fluid supply 26 is conductive.
  • the plug 24 can be inserted into the axle cavity 28 through a plug rod 25 connected to it.
  • the roller shell 5 is formed like a tube with an annular cross-section and surrounds an axis portion of the axis 3 coaxially. Between the roller shell 5 and the axis 3, the seal holders 13, thedefluidleithhülse 11 and the bearings 7 are arranged.
  • Each seal holder 13 is arranged between an end region of the roll mantle 5 and the axis 3, surrounds the axis 3 Se ⁇ ring and is fixedly connected to the axis 3.
  • Each seal holder 13 has on the axis side a plurality of annular recesses, in each of which a first sealing ring 19 is arranged, which rests against the axis 3 and surrounds this ringför ⁇ mig.
  • Roller shell side, each seal holding tion 13 two further annular recesses in which a dirt seal 21 and a seal 20 are arranged, which rests against the roller shell 5 and against which the Rol ⁇ lenmantel 5 is movable.
  • Rollenman- means of shell-side dirt seal 21 serves to seal against dirt from the environment of the strand guide roller 1
  • the seal 20 serves to seal against leakage of cooling fluid from the Strang Adjustsrol ⁇ le. 1
  • each seal holder 13 has a Garrungsöff ⁇ opening 32 which connects a radial opening 34 in the axis 3 with a cooling fluid chamber 31 between the seal holder 13 and the rolling bearing 7.
  • the radial opening 34 is connected to a cooling cavity 30 of the axis 3, so that through the radial opening 34 and the support opening 32 cooling fluid between the cooling cavity 30 and the cooling fluid chamber 31 can flow.
  • Thedefluidleithgg 11 is disposed axially between the rolling bearings 7, formed like a tube and surrounds the axis 3 koa ⁇ xial.
  • Thedefluidleithülse 11 has a the roller shell 5 facing groove-likemékanalausnaturalung 38 which heli ⁇ x runs around the axis 3 around.
  • Thedekanalausneh- mung 38 thereby forms a continuous cooling channel 40, which extends helically along the inner surface of the means of Rollenman ⁇ . 5
  • each roller bearing 7 has a voltage applied to the roller shell 5 and extending around the axis 3 Au ⁇ inforing 7.1, a voltage applied to the axis 3 and extending around the axis 3 inner ring 7.2 and more arranged between the outer ring 7.1 and the inner ring 7.2 rolling elements 7.3.
  • the outer ring is 7.1 (it would be possible but also the inner ring 7.2 and / or the rolling elements 7.3) of the rolling bearing 7 made of a corrosion-resistant spring band, so that the rolling bearing (also called spring roller bearing) in to a longitudinal axis of the axis 3 orthogonal directions formed elastically deformable.
  • the roller bearings 7, ie the outer rings 7.1, inner rings 7.2 and rolling elements 7.3 are made of a corrosion-resistant steel in order to be protected against corrosion by contact with the cooling fluid.
  • Each rolling bearing 7 has a lying between the outer ring 7.1 and the inner ring 7.2 bearing interior 9, which is permeable to the cooling fluid and the cooling channel 40 and adjacent to the rolling bearing 7 cooling fluid chamber 31 open, so that the cooling fluid through the bearing interior 9 between the Cooling fluid chamber 31 and the cooling passage 40 can flow.
  • the cooling fluid is through at least one opening in a cooling fluid supply 26 introduced into this receiving space and passed through at least one opening in the other cooling fluid supply 26 out of it.
  • the annular starting disks 15 are each arranged as a buffer for receiving axial forces between a seal holder 13 and the outer ring 7.1 of a roller bearing 7.
  • a securing ring 22 for fixing the position of the rolling bearing 7 is arranged on one of the adjacent seal holders 13 facing the end of the inner ring 7.2 of each Wälzla ⁇ gers 7.
  • the starting discs 15 can be arranged for receiving the axial forces between the roller shell 5 and the inner ring 7.2 or between thedefluidleithülülse 11 and the inner ring 7.2.
  • Thedefluidleithgg 11 11 may at Be ⁇ may, for example, positively and non-positively by pressing, be connected to the roller shell 5.
  • the support blocks 17 annularförmig each surround an end portion of the axis 3 and serve to support the strand guide rail le 1 against a supporting (not shown) component. Each support block 17 abuts one end of the adjacent seal holder 13, which protrudes from the roller shell 5.
  • the illustrated in Figure 1 embodiment of a strand ⁇ guide roller 1 can be modified in many ways who ⁇ .
  • the cooling cavities 30 may be formed by bores in the axle 3 that do not extend along the entire axis 3, but form only the cooling cavities 30.
  • the number of sealing rings 19, the seals 20 or the dirt seals 21 with respect to Figure 1 can be changed.
  • the cooling channel 40 may also be formed by a bore in the roller casing 5 instead of a cooling fluid guide sleeve 11, and / or a plurality of cooling channels 40 may be formed on or / and in the roller casing 5 instead of just one cooling channel 40.
  • the Strangure ⁇ tion roller 1 instead of only a roller shell 5 more along the axis 3 successively arranged roller shells 5 aufwei ⁇ sen, the roller shells 5 may be the same or different (in ⁇ example, with regard to the formation of the cooling channels 40).
  • FIG. 2 schematically shows a detail of a continuous casting plant 100 in a plan view. Shown are a Kokil ⁇ le 102 of the continuous casting 100 and a plurality of the mold 102 downstream and successively arranged strand guide rollers ⁇ 1.
  • the mold 102 serves to form a strand, which is guided with the strand guide rollers 1 and supported.
  • FIG. 3 shows a detail of a variant of the strand guide roller according to FIG.
  • this strand guide roller for example, a ring ⁇ cavity 41, which lies in the radial direction outside of the seal 20, so that the temperature-sensitive seal 20th is cooled suffi ⁇ accordingly even at a standstill of the strand guide roller.
  • the dirt seal 21 for example. Felt is, it is not necessary iA, this also to cow ⁇ len.
  • the ingress of dirt into the annular cavity 41 or into the bearing interior 9 is additionally prevented by a shut-off plate 42 in addition to the dirt seal 21.
  • the fluid-tight seal of the annular cavity 41 takes over the seal 20, which is designed as a shaft seal.
  • the rolling bearing 7 itself as shown in Figure 1 as a spring roller bearing.
  • a stop ring 15 made of high-performance plastic PEEK is ⁇ assigns.
  • the cooling fluid is introduced through 6 radial openings 34 in the annular cavity 41, resulting in a very uniform flow (and thus a uniform temperature distribution) in the rolling bearing 7 results. This measure also contributes to the robustness of
  • a cooling fluid is introduced into the axle cavity 28 from a coolant supply (not shown separately here), the cooling fluid subsequently diverted into six radial openings 34 and introduced into the annular cavity 41 via the mounting opening 32.
  • the seal 20, in particular a sealing lip, which bears against the roller casing 5 is cooled via the web between the annular cavity 41 and the seal 20.
  • the web can either be integral with the roller shell or be connected by welding with roller shell 5, for example.
  • the rolling bearing 7 is flowed through and the cooling fluid is introduced into the cooling passage 40.
  • the cooling fluid flows through a further roller bearing on the right side of the strand guide roller and is introduced into a further annular cavity. Thereafter, the cooling fluid is in turn introduced through further radial openings in a further axis cavity and then discharged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

Le rouleau de guidage de produit filé (1) selon l'invention comporte un axe fixe (3), au moins une enveloppe de rouleau (5) entourant coaxialement une partie de l'axe (3), au moins un conduit de refroidissement (40) s'étendant le long de la surface intérieure de l'enveloppe de rouleau (5) pour chaque enveloppe de rouleau (5), pour recevoir un fluide de réfroidissement, et au moins un palier à roulement (7) pour le montage à rotation de l'enveloppe de rouleau (5) autour de l'axe (3). Selon l'invention, le palier à roulement (7) est adjacent au conduit de refroidissement (40) et comprend un espace intérieur de palier (9) perméable au fluide de refroidissement et ouvert sur le conduit de refroidissement (40), de telle sorte que le palier à roulement (7) soit traversé par du fluide de refroidissement lors du fonctionnement. À cet effet, le palier à roulement (7) est réalisé à partir d'un acier résistant à la corrosion fabriqué pour un fonctionnement sans lubrifiant. En outre, le palier à roulement (7) est réalisé de manière déformable élastiquement dans au moins une direction orthogonale à un axe longitudinal de l'axe (3).
EP17700969.3A 2016-01-21 2017-01-20 Rouleau de guidage de produit filé pour le guidage d'un produit filé métallique dans une installation de coulée continue Active EP3405302B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT500272016 2016-01-21
PCT/EP2017/051146 WO2017125529A1 (fr) 2016-01-21 2017-01-20 Rouleau de guidage de produit filé pour le guidage d'un produit filé métallique dans une installation de coulée continue

Publications (3)

Publication Number Publication Date
EP3405302A1 true EP3405302A1 (fr) 2018-11-28
EP3405302B1 EP3405302B1 (fr) 2023-08-30
EP3405302C0 EP3405302C0 (fr) 2023-08-30

Family

ID=57860871

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17700969.3A Active EP3405302B1 (fr) 2016-01-21 2017-01-20 Rouleau de guidage de produit filé pour le guidage d'un produit filé métallique dans une installation de coulée continue

Country Status (2)

Country Link
EP (1) EP3405302B1 (fr)
WO (1) WO2017125529A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3562286A1 (fr) 2018-04-25 2019-10-30 Siemens Aktiengesellschaft Fond de panier et son procédé de fabrication
AT526034A1 (de) * 2022-08-09 2023-08-15 Primetals Technologies Austria GmbH Strangführungsrolle zum Führen eines metallischen Strangs in einer Stranggießanlage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545891B1 (fr) * 1982-10-21 1990-11-16 Kastner Rene Roulement a rouleaux apte a fonctionner a haute temperature et sans graissage, et rouleaux de machine de coulee continue equipes de tels roulements
AT514625B1 (de) * 2013-07-24 2018-07-15 Primetals Technologies Austria GmbH Gekühlte Strangführungsrolle

Also Published As

Publication number Publication date
WO2017125529A1 (fr) 2017-07-27
EP3405302B1 (fr) 2023-08-30
EP3405302C0 (fr) 2023-08-30

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