WO2020057794A1 - Revêtement de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un polyuréthane pour la fabrication d'une couche polymère d'un revêtement de presse - Google Patents

Revêtement de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un polyuréthane pour la fabrication d'une couche polymère d'un revêtement de presse Download PDF

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Publication number
WO2020057794A1
WO2020057794A1 PCT/EP2019/068476 EP2019068476W WO2020057794A1 WO 2020057794 A1 WO2020057794 A1 WO 2020057794A1 EP 2019068476 W EP2019068476 W EP 2019068476W WO 2020057794 A1 WO2020057794 A1 WO 2020057794A1
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WO
WIPO (PCT)
Prior art keywords
press
press jacket
polymer layer
jacket
shoe
Prior art date
Application number
PCT/EP2019/068476
Other languages
German (de)
English (en)
Inventor
Delphine Delmas
Hermann Reichert
Michael Wokurek
Original Assignee
Voith Patent 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 Voith Patent Gmbh filed Critical Voith Patent Gmbh
Publication of WO2020057794A1 publication Critical patent/WO2020057794A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • D21F3/0236—Belts or sleeves therefor manufacturing methods

Definitions

  • the invention relates to a press jacket, in particular for a press device for treating a fibrous web, e.g. for smoothing or dewatering, in detail according to the independent claims.
  • the invention also relates to a press roll, a shoe press and the use of a press jacket in such a one, in detail according to the independent claims.
  • Press devices such as shoe presses have long been part of modern paper machines. They essentially comprise a stationary shoe (also called a press shoe), which extends in a cross-machine direction, and a press jacket that runs around the stationary shoe. The latter is deformable and essentially assumes a tubular shape during operation. The shoe is shaped so that it forms a press nip with a counter roller. The press nip is defined by the contact surface of the counter roller in the shoe.
  • the shoe is designed to be movable and can be moved to the counter roller.
  • Enormous demands are placed on the press jacket in terms of its stability, namely with regard to surface hardness, resistance to pressure, temperature and flydrolysis.
  • the press jacket is also exposed to strong alternating bending loads during operation.
  • This deformation of the press jacket when entering and leaving is also referred to as a changing nip. It is easy to see that the tendency of the press casing to break particularly at this point is very high due to the high mechanical stress. Accordingly, many measures are known from the prior art that improve the stability of the
  • Press sleeve should increase.
  • the press jacket must therefore be sufficiently flexible so that it can be guided around the shoe, it must be sufficiently stiff so that it does not deform or compress too much under the press load in the nip, and it must be sufficiently wear-resistant.
  • Press sleeves therefore consist of a single or multi-layer polymer layer, preferably made of polyurethane, in which reinforcing threads in the form of scrims or fabrics can be embedded.
  • the present invention relates to such generic items mentioned at the outset.
  • Multi-layer press sleeves known from the prior art tend to premature failure in normal operation due to the detachment of one of the polymer layers, which is often only local. In practice, this leads to unplanned downtimes of the pressing device and thus to increased, costly downtimes. In the operation of such press sleeves, local overloads can also occur in the nip of the pressing device. This is the case when a foreign body passes through the nip during a so-called batz passage. Such an overload can also lead to such detachments. It is an object of the invention to provide a press jacket which avoids the disadvantages of the prior art.
  • Halogens such as chlorine are an example of this. This effect reduces the chemical reactivity of the polymer as well as the steric hindrance. Both solutions can be used separately or in combination. Only the use of such modified amines as 4,4'-methylenebis (3-chloro-2,6-diethylaniline) (MCDEA), dimethylthiotoluenediamine (DMTDA), methylenebis-o-ethylanaline (MBOEA) brings these outstanding advantages.
  • MCDEA 4,4'-methylenebis (3-chloro-2,6-diethylaniline)
  • DMTDA dimethylthiotoluenediamine
  • MOEA methylenebis-o-ethylanaline
  • a press jacket in the sense of the invention is to be understood as a band, hose or a jacket which, as shown, is guided together with a fibrous web through the press nip of a shoe press.
  • the radially outermost surface (polymer layer) of the press jacket can come into contact with a press felt, from which the fibrous web to be dewatered is carried directly.
  • the pressing device can also come into direct contact with the fibrous web, for example, for smoothing the pressing jacket during normal operation.
  • the press jacket is designed as a closed jacket (hose) which is endless in the circumferential direction about its longitudinal axis. At its axial ends it is open - as seen in the width direction (along the longitudinal axis).
  • the press jacket can thus be held at these axial ends by two lateral tensioning disks in order to form the shoe press roll.
  • the press jacket instead of being guided through the two lateral tensioning disks, the press jacket, as is the case with open shoe presses, can be guided over the press shoe and several guide rollers. Regardless of whether the press jacket is guided by the tensioning disks or the guide rolls, the press shoe (or the guide rolls) comes into contact with part of the radially innermost surface of the press jacket.
  • the radially outermost surface of such a press casing for example the radially outermost polymer layer thereof, can be provided with grooves and / or blind bores.
  • the longitudinal direction means the direction that runs parallel to the longitudinal axis of the press casing.
  • the longitudinal axis also corresponds to the axis of symmetry or rotation of the finished press jacket or the press roll.
  • the circumferential direction of the press casing extends around the longitudinal axis as seen around its radial boundary.
  • the term parallel also includes those angular deviations of two reinforcement threads lying on different planes of +/- 5 ° to one another.
  • the press jacket or the at least one polymer layer can be made partially or completely from a polymer.
  • a pourable, curable, preferably elastomeric polymer such as polyurethane can be used as the polymer.
  • the polymer can consequently be set as a cast elastomer.
  • the polyurethane can be obtained by reaction with a crosslinking agent
  • the polyurethane is produced, for example, by adding the crosslinking agent to a prepolymer comprising an isocyanate and a polyol.
  • the prepolymer is a reaction product of one Isocyanate, a polyol to which a crosslinker is added to produce the polyurethane.
  • polymer layer is meant a layer which comprises such a castable, curable, preferably elastomeric polymer or is produced entirely therefrom.
  • the polymer layer can preferably be a cured layer which is produced in one piece by primary molding. In other words, it is monolithically shaped, that is, manufactured by casting, for example.
  • the term one-part also includes cases in which the one layer was again made from several layers of the same material when the polymer was cast. However, this only insofar as these layers are essentially no longer visible after curing, but rather a single, preferably uniform, layer results. The same applies accordingly to the finished press jacket.
  • the press casing can be arranged one above the other as seen in the radial direction - at least in sections over the width of the press jacket. At least in sections over the width of the press casing means that the press casing, for example, has only one layer at its axial ends along the longitudinal axis of the press casing, whereas it is formed in two or more layers between the axial ends.
  • the polymer layers can also extend over the entire width of the press jacket.
  • the thickness of the press jacket - and thus the thickness of the individual polymer layers - can vary in sections along the longitudinal axis in a section through its longitudinal axis.
  • the radially outermost polymer layer in the area of the width edges of the press jacket can be smaller than in the middle of the press jacket.
  • the radially outermost polymer layer can be less thick than a radially inner or radially innermost polymer layer.
  • a total thickness of the finished press casing in a section through its longitudinal axis in the radial direction can be 5 to 10 mm, preferably 5 to 7 mm, particularly preferably 5 to 6 mm.
  • the press jacket can be produced from only one casting, ie monolithically, so that the single layer has the thickness just mentioned.
  • a finished press jacket in the sense of the invention is one which has at least one polymer layer cured and possibly finally processed, that is to say it is ready for use in a shoe press, for example, for the aforementioned purpose.
  • a finished polymer layer means a layer that has hardened.
  • a reinforcing thread in the sense of the invention is understood to mean a pliable, textile line structure which has a dominant extension and a uniformity in its longitudinal direction.
  • reinforcing structure in the sense of the invention means reinforcing the at least one layer containing or consisting of the polymer - that is to say the polymer layer.
  • the reinforcing structure can be completely embedded in the polymer layer, so that the reinforcing structure does not go beyond the boundary of the polymer layer.
  • the polymer layer takes on the role of a matrix, which surrounds the reinforcement structure and binds to the matrix as a result of adhesive or cohesive forces.
  • Such a reinforcement structure can textile line structures - z.
  • a single reinforcing thread according to the invention is considered as a textile line structure.
  • Several such reinforcing threads can e.g. be designed as longitudinal and / or circumferential threads that together they form a textile fabric.
  • the at least one reinforcing thread, which is embedded in the at least one polymer layer, then represents the reinforcing structure of the press cover or its polymer layer.
  • the starting material is understood to mean that material or sheet material by means of which the reinforcing structure of the finished press jacket according to the invention is produced becomes.
  • the reinforcing threads mentioned are the starting material for the reinforcing structure.
  • the definition that at least the longitudinal threads are produced as reinforcing threads according to the invention means that only the longitudinal threads are designed in this way or in addition the longitudinal threads and at least one further peripheral thread are produced in this way. If preferred e.g. if there is a scrim of circumferential and longitudinal threads, then this means that at least the longitudinal threads are designed according to the invention
  • a press device means, for example, a shoe press, for example for dewatering or treatment, such as smoothing a fibrous web.
  • the shoe press comprises a shoe press roll and a counter roll, which together form or limit a press nip.
  • the shoe press roll also includes a circumferential press jacket and a standing press element, the so-called press shoe.
  • the latter is supported on a load-bearing, also standing yoke - for example via hydraulic press elements - and is pressed onto the surrounding press jacket.
  • the press jacket rotates relative to the fixed press shoe and yoke and is thereby pressed against the counter roller in the press nip. Press shoe and yoke are arranged radially inside the press jacket.
  • the term standing means that the press element does not rotate relative to the shoe press roll or the counter roll, but can translate - towards and away from the counter roll, preferably in the radial direction thereof - and thus relative to the counter roll.
  • one or more press felts that circulate endlessly in the circumferential direction and / or further press belts that rotate continuously can be guided through the press nip of the shoe press.
  • Such a shoe press can of course comprise more than one press nip.
  • a fibrous web in the sense of the invention is to be understood as a scrim of fibers such as wood fibers, plastic fibers, glass fibers, carbon fibers, additives, additives or the like. So the fibrous web for example, be designed as a paper, cardboard or tissue web. It can essentially comprise wood fibers, whereby small amounts of other fibers or also additives can be present. Depending on the application, this is left to the specialist.
  • the invention also relates to a press roll, such as a shoe press roll, for a shoe press for dewatering a fibrous web, the press roll having at least one press jacket according to the invention.
  • the invention also relates to a shoe press for dewatering a fibrous web, preferably a paper, cardboard, tissue or cellulose web, comprising a press roll and a counter roll, which together form or limit a nip, the press roll comprising a rotating press jacket, the press jacket is designed according to the invention.
  • the invention also relates to the use of a press jacket according to the invention for a press, such as a shoe press for dewatering a fibrous web, preferably a paper, cardboard, tissue or cellulose web.
  • the invention relates to the use of an amine with a steric hindrance and / or with groups or atoms which have the ability to attract electrons, as a crosslinker for a polyurethane which is used to produce at least one polymer layer of a press jacket according to the invention.
  • Fig. 1 is a partially sectioned, schematic side view of a
  • Shoe press with a press jacket according to an embodiment of the present invention.
  • 2a and 2b embodiments of a press jacket each in one
  • Fig. 3 is a highly schematic representation of a device for
  • a shoe press 10 is shown in a partially sectioned, schematic side view in FIG. 1, which in the present case comprises a press roll according to the invention, such as a shoe press roll 12, and a counter roll 14.
  • Shoe press roller 12 and counter roller 14 are arranged parallel to one another with respect to their longitudinal axes. Together they form or limit a nip 22.
  • the counter-roller 14 here consists of a cylindrical roller rotating about its longitudinal axis
  • the shoe press roller 12 is composed of a shoe 16, a standing yoke 18 carrying it and a press jacket 20.
  • Shoe 16 and yoke 18 are arranged fixed with respect to the counter roller 14 and the press jacket 20, respectively. That means they don't rotate.
  • the shoe 16 is supported by the yoke 18 and pressed against the radially innermost surface of the press jacket 20 which rotates relative to it by means of hydraulic press elements (not shown).
  • the shoe press 10 is particularly suitable for dewatering fibrous webs 24. When the shoe press is in operation, a fibrous web 24 with one or two press felts 26, 26 'is guided through the press nip 22.
  • press felts 26, 26 ' which sandwich the fibrous web 24 between them.
  • a pressure is indirectly exerted on the fibrous web 24 in the nip 22 by the press felts 26, 26 '.
  • the liquid emerging from the fibrous web 24 is temporarily absorbed by the press felt (s) 26, 26 'and any depressions (not shown) provided in the surface of the press jacket.
  • the liquid absorbed by the depressions of the press jacket 20 is thrown off before the press jacket 20 enters the press nip 22 again.
  • the water absorbed by the press felt 26, 26 ' can be removed with suction elements after leaving the press nip 22.
  • the press felts 26, 26 ' can be dispensed with.
  • the fibrous web 24 is in direct contact on the one hand with the press jacket 20 and on the other hand with the counter roll 14, which together form a press nip.
  • the latter can then be designed as a heated drying cylinder.
  • the press jacket shown in FIG. 1 can, as shown in the following figures, be designed according to the invention.
  • FIG. 2a different embodiments of the invention are shown in a cross-section through the longitudinal axis 20 'of the finished press jacket 20, which is not to scale and which is partially shown.
  • the distance between the longitudinal axis 20 'and the radially innermost surface of the corresponding polymer layer of the press jacket 20 is also not shown to scale.
  • FIG. 2a exactly two polymer layers are provided, namely a first 20.1 and a second 20.2.
  • the first polymer layer 20.1 is at the same time the radially outermost polymer layer of the press jacket 20.
  • the second polymer layer 20.2 is at the same time the radially innermost polymer layer of the press jacket 20.
  • Both polymer layers 20.1, 20.2 are immediately adjacent to one another in the radial direction, ie there is no intermediate layer between these two.
  • a reinforcing structure 20 ′′ can be provided in the second polymer layer 20.2. In the present case, this is completely embedded in the polymer layer 20.2. This is indicated by the hatched circles, which can be textile surface or line structures such as fibers. that the reinforcement structure 20 "does not extend beyond the boundaries of the polymer layer 20.2.
  • the reinforcing structure 20 "here comprises a plurality of reinforcing threads 21 serving as longitudinal thread 21.1. These are arranged in the longitudinal direction of the press jacket 20 at a distance and parallel to one another over its circumference.
  • at least one further reinforcing thread 21 is provided here as a peripheral thread 21.2, which is preferably inside
  • the same polymer layer 20.1, 20.2, 20.3, in which the longitudinal threads 21.1 are also arranged, runs helically in the circumferential direction of the press casing 21.2 - seen in relation to the longitudinal axis 20 'of the press casing 20 - are arranged.
  • the first and a second polymer layer 20.1, 20.2 are made from a polyurethane. This is e.g. available from a prepolymer and a crosslinker.
  • the second, radially innermost polymer layer 20.2 is made of a polyurethane which, for example, the sterically hindered amine according to the invention and / or the Amine contains groups or atoms that have the ability to attract electrons.
  • the press jacket 20 could consist of a single polymer layer, referred to in FIG. 2a as the radially innermost polymer layer 20.2.
  • FIG. 2b shows a three-layer press jacket in a modification to FIG. 2a.
  • This comprises a — first radially outermost — first polymer layer 20.1, a radially innermost, third polymer layer 20.3 and a second polymer layer 20.2 arranged sandwiched between these two.
  • the arrangement relates - as also shown in FIG. 2a - starting from the longitudinal axis 20 'of the press jacket 20 in its radial direction.
  • a (single) reinforcement structure 20 ′′ is only provided in the second polymer layer 20.2.
  • the radially innermost, in the present case the third polymer layer 20.3, is made of a polyurethane which comprises the sterically hindered amine according to the invention and / or which contains groups or atoms which have the ability to attract electrons.
  • isocyanate for the polymer layers 20.1, 20.2 and 20.3 mentioned.
  • PPDI 4-phenylene diisocyanate
  • MDI 4,4'-diphenylmethane diisocyanate
  • TDI toluene-2,4-diisocyanate
  • NDI naphthalene-1,5-diisocyanate
  • FI6XDI 3- bis (isocyanatomethyl) cyclohexane
  • FIG. 3 shows, in a highly schematic side view, a device for producing a press jacket 20 according to the invention.
  • the device has exactly one cylindrical winding mandrel 4, with the latter being radial outermost lateral surface, for example, a starting material 20 "'is applied spirally. After being embedded in the polymer, the starting material 20""forms the reinforcing structure 20" of the finished press jacket 20 according to the invention.
  • the illustration shows an initial stage of the production process. In the present case, one end of the starting material 20 '' is fastened to a polymer which is arranged on the outer circumference of the winding mandrel 4.
  • the one end of the starting material 20 '' could also directly, ie immediately rest or be applied to the winding mandrel 4 without a polymer being initially provided between the starting material 20 '"and the winding mandrel 4.
  • the starting material 20'" can be a textile fabric or line structure.
  • the winding mandrel 4 is rotatably mounted about its longitudinal axis 20 ', which corresponds to the longitudinal axis of the press jacket to be produced. Longitudinal axis 20 'here extends perpendicularly into the plane of the drawing.
  • a casting material such as pourable, curable elastomeric polymer, for example polyurethane, is fed from above onto a radially outermost surface of the winding mandrel 4 or onto the starting material 20 '' via a line 5 through a casting nozzle 6.
  • Such a casting material can be used, for example, with regard to its pot life and viscosity are selected such that it does not drip off the mandrel 4 during casting, during which the mandrel 4 is rotated about its longitudinal axis in the direction of the arrow.
  • the pouring nozzle 6 is parallel to the nozzle via a suitable guide, not shown in FIG Longitudinal axis 20 'along this relatively along the winding mandrel 4.
  • the starting material 20'" is unrolled and wound into coils on the rotating mandrel 4.
  • the casting material can pass through the starting material 20 '"up to the winding mandrel 4.
  • the polymer forms a radially innermost and preferably elastomeric polymer layer, which corresponds to the polymer layer 20.2 of the press jacket from FIG. 2a, of which only part is shown in FIG. 3.
  • the casting material emerging from the casting nozzle 6 is in the present case a mixture of a prepolymer and a crosslinking agent.
  • the former is provided from a prepolymer container, not shown, in which it is stored or mixed.
  • the prepolymer is a reaction product of an isocyanate according to the invention and a polyol. In the prepolymer container, for example, it can be in the form of a prepolymer from the substances just mentioned.
  • the crosslinker can be provided in a crosslinker container.
  • the prepolymer container and crosslinker container are assigned to the device for producing a press jacket 20. They are connected in a flow-conducting manner via lines, also not shown, to a mixing chamber (not shown) which is arranged upstream of the pouring nozzle 6 in the flow direction.
  • the prepolymer-crosslinking agent mixture is thus produced upstream and outside the pouring nozzle 6, that is to say mixed in the mixing chamber. Regardless of the production of the mixture, this is then applied to the surface of the mandrel 4 to form the at least one polymer layer of the press cover 20.
  • pouring nozzles 6 could be provided. These could be connected to separate prepolymer and crosslinker containers via corresponding lines, in order to also feed different polymers to the majority of the goat nozzles 6 independently of one another.
  • the pouring nozzles 6 could then be arranged at a distance from one another along the longitudinal axis of the press jacket 20 in order to produce a plurality of polymer layers 20.1, 20.2, 20.3 by simultaneously dispensing the polymer from the pouring nozzles 6 in one casting.
  • an endless cylindrical tubular press jacket 20 which is closed about its longitudinal axis 20 ′ and whose inner circumference essentially corresponds to the outer circumference of the winding mandrel 4, is thus gradually produced over the width of the winding mandrel 4 .
  • two mandrels could be provided, which could be arranged parallel to one another with respect to their longitudinal axes.
  • the reinforcement structure 20 ′′ of the at least one polymer layer 20.1, 20.2 could also be constructed from a plurality of starting materials 20 ′′, which are placed one above the other in the radial direction and each run in the longitudinal axis direction and in the circumferential direction of the press jacket 20.
  • the DMTDA molecule also has groups or atoms that have the ability to attract electrons. In the present case they are halogens, here chlorine (CI).

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
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Abstract

L'invention concerne un revêtement de presse comprenant au moins une couche polymère qui est fabriquée à partir d'un polyuréthane ou qui comprend un tel polyuréthane, ce polyuréthane pouvant être obtenu par réaction avec un agent de réticulation et l'agent de réticulation contenant une amine à encombrement stérique et/ou l'amine contenant des groupes ou des atomes qui ont la capacité d'attirer les électrons. L'invention concerne également un rouleau de presse, une presse à sabot et l'utilisation d'un revêtement de presse dans une telle presse à sabot.
PCT/EP2019/068476 2018-09-18 2019-07-10 Revêtement de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un polyuréthane pour la fabrication d'une couche polymère d'un revêtement de presse WO2020057794A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018122777.9 2018-09-18
DE102018122777.9A DE102018122777A1 (de) 2018-09-18 2018-09-18 Pressmantel, dessen Verwendung sowie Presswalze und Schuhpresse

Publications (1)

Publication Number Publication Date
WO2020057794A1 true WO2020057794A1 (fr) 2020-03-26

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PCT/EP2019/068476 WO2020057794A1 (fr) 2018-09-18 2019-07-10 Revêtement de presse, son utilisation et rouleau de presse, presse à sabot et utilisation d'un polyuréthane pour la fabrication d'une couche polymère d'un revêtement de presse

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DE (1) DE102018122777A1 (fr)
WO (1) WO2020057794A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0859082A2 (fr) * 1997-02-17 1998-08-19 Voith Sulzer Papiermaschinen GmbH Bande pour presse, en particulier une enveloppe de pressage
EP2284314A1 (fr) * 2009-07-21 2011-02-16 Ichikawa Co.,Ltd. Courroie pour presse à chaussure de papetier
DE102013222458A1 (de) * 2013-11-06 2015-05-07 Voith Patent Gmbh Pressmantel für Presswalze
EP3101174A1 (fr) * 2015-06-05 2016-12-07 Ichikawa Co.,Ltd. Courroie de presse à sabot
DE102015217942A1 (de) * 2015-09-18 2017-03-23 Voith Patent Gmbh Pressmantel und Verfahren zur Herstellung eines solchen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017115592A1 (de) * 2017-07-12 2019-01-17 Voith Patent Gmbh Pressmantel
DE102017117227A1 (de) * 2017-07-31 2019-01-31 Voith Patent Gmbh Pressmantel und dessen Verwendung sowie Presswalze und Schuhpresse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0859082A2 (fr) * 1997-02-17 1998-08-19 Voith Sulzer Papiermaschinen GmbH Bande pour presse, en particulier une enveloppe de pressage
EP2284314A1 (fr) * 2009-07-21 2011-02-16 Ichikawa Co.,Ltd. Courroie pour presse à chaussure de papetier
DE102013222458A1 (de) * 2013-11-06 2015-05-07 Voith Patent Gmbh Pressmantel für Presswalze
EP3101174A1 (fr) * 2015-06-05 2016-12-07 Ichikawa Co.,Ltd. Courroie de presse à sabot
DE102015217942A1 (de) * 2015-09-18 2017-03-23 Voith Patent Gmbh Pressmantel und Verfahren zur Herstellung eines solchen

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