EP2807010A1 - Éléments structuraux produits à partir d'une matière plastique renforcée par des fibres et conçus pour des systèmes de fixation de rails pour des véhicules sur rails - Google Patents

Éléments structuraux produits à partir d'une matière plastique renforcée par des fibres et conçus pour des systèmes de fixation de rails pour des véhicules sur rails

Info

Publication number
EP2807010A1
EP2807010A1 EP13701238.1A EP13701238A EP2807010A1 EP 2807010 A1 EP2807010 A1 EP 2807010A1 EP 13701238 A EP13701238 A EP 13701238A EP 2807010 A1 EP2807010 A1 EP 2807010A1
Authority
EP
European Patent Office
Prior art keywords
rail
component according
plastic
reinforcing fibers
component
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.)
Withdrawn
Application number
EP13701238.1A
Other languages
German (de)
English (en)
Inventor
Michael Harrass
Dietmar Becker
Bernd Schulte
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.)
Vossloh Werke GmbH
Original Assignee
Vossloh Werke 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 Vossloh Werke GmbH filed Critical Vossloh Werke GmbH
Publication of EP2807010A1 publication Critical patent/EP2807010A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B13/00—Arrangements preventing shifting of the track
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/38—Indirect fastening of rails by using tie-plates or chairs; Fastening of rails on the tie-plates or in the chairs
    • E01B9/40—Tie-plates for flat-bottom rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/62—Rail fastenings incorporating resilient supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C2045/466—Means for plasticising or homogenising the moulding material or forcing it into the mould supplying the injection unit directly by a compounder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/001—Flat articles, e.g. films or sheets having irregular or rough surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/002—Panels; Plates; Sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/727—Fastening elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/004—Additives being defined by their length
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/68—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/681—Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material

Definitions

  • the invention relates to plastic
  • High speed lines are used regularly include various made of plastic
  • Such plate-shaped components for rail fasteners include the so-called in the jargon
  • the guide plates can be used as a support for each spring element, which needed to hold down the rail in fully assembled system
  • one or more form elements may be formed in or at which the respective spring element is guided so that it maintains its desired position even under the loads occurring in practice.
  • Form elements may be depressions, such as grooves, holes or other recesses or depressions, in which the spring element or a for clamping the
  • Main plane of the surface of the guide plate projecting ribs, webs or other elevations may be formed on which the spring element is supported in the manner of attacks or laterally guided.
  • Angled guide plate is formed, in addition to the underside of the guide plate is a in
  • Attachment point is erected. Depending on the
  • Rail fastening system they extend for this purpose, at least over the measured transverse to the longitudinal extent of the rail width of the rail foot or are laterally beyond.
  • the relevant plates are either directly on the respective substrate or are supported on one or more intermediate layers on the ground. Also are made of different plates and made of elastic material
  • the ribs are spaced apart from each other so that they guide the rail laterally and when driving over the formed by the respective rail fastening system
  • plastic insulation elements are required. These insulating elements serve to each made of conductive material
  • adapter pieces or eccentric body can be any suitable material.
  • adapter pieces or eccentric body can be any suitable material.
  • the existing plastic components of a rail fastening system in practical use must not only withstand the high static and dynamic loads that occur when driving over the respective attachment point, but also robust against abrasive wear and insensitive against temperature changes, liquids and others
  • Components of a rail fastening system have a low weight and have a high dimensional stability.
  • Components of a rail fastening system have a low weight and have a high dimensional stability.
  • associated underside of the plate elements recesses formed and formed a rib structure.
  • Rail fastening systems of the type in question are asked, the object of the invention was a component for rail fastening systems
  • a device according to the invention is thus made of a fiber-reinforced plastic, which is made of a base plastic and incorporated therein
  • Reinforcing fibers consists. According to the invention, the preparation is by application of injection molding
  • the length of the present in the finished component reinforcing fibers averages at least 200 ⁇ .
  • average length it is meant always that mean value determined in the usual way by simply dividing the total length of the fibers detected in a sample by the number of fibers concerned.
  • thermoplastics can be used as base plastic for a component according to the invention
  • PP Polypropylene
  • PA polyamide
  • PET polyethylene terephthalate
  • POM polyoxymethylene
  • ABS acrylonitrile-butadiene-styrene
  • PBT polybutylene terephthalate
  • LDPE / HDPE polyethylene
  • the IMC process allows the fabrication of reinforced large volume components by combining the advantages of injection molding and extrusion.
  • the peculiarity of the IMC process consists in the fact that a twin-screw extruder is used, with which in the process the respectively desired material mixture
  • the base plastic for embossing or optimizing certain properties directly during processing for example, reinforcing fibers, fillers or present in the form of granules plastic additives, so-called "masterbatches" are supplied to their contents
  • Colorants or additives are higher than in the
  • Reinforcing fibers has been added. It could be shown that the mean of the fiber lengths of plate elements produced according to the invention regularly corresponded to at least twice the average of the lengths of the fibers present in conventionally produced components.
  • Amplification fiber length on average regularly at least 200 ⁇ and more, in particular at least 300 ⁇ and more, is. In practical experiments could regularly be achieved fiber lengths that are greater than 350 ⁇ average, the obtained
  • Base plastic to supply other high-performance fibers.
  • these fibers include, for example, metal and ceramic fibers.
  • the reinforcing fibers introduced according to the invention in the IMC process can be provided with a type of a
  • Adhesive acting sizing be provided. These include, for example, mechanically, adhesively and chemically acting sizes, such as polyurethanes and silanes.
  • Polymer matrix of the base plastic allows.
  • chopped glass fibers short and long glass
  • glass beads as hybrid reinforcing material as bulk material
  • Finely structured ribs can thus be formed, which lead to a significant saving of material, without including the
  • Rail fastener components can be adjusted by the addition of additives and fillers.
  • components according to the invention of low weight and optimum mechanical properties can be
  • Fillers are added by the properties, such as
  • Crystallizing agents such as finely dispersed particles, e.g. Silica
  • additives suitable for this purpose are known antioxidants or carbon black used for this purpose in the state of the art
  • additive suitable for this purpose are known heat stabilizers used for this purpose in the prior art
  • Additives are electrically conductive metal particles that give the plastic material a certain conductivity
  • Additives are known per se for this purpose, which can be incorporated into the plastic lubricant, such as MoS2 or graphite),
  • suitable additives for this purpose are per se known flame retardants, such as, for example, halogen or aluminum compounds), hygroscopy (suitable additives for this purpose are hydrophobic constituents known per se), or
  • nucleating agents or crystallization formers for example, by adding nucleating agents or crystallization formers to the base plastic as additives, its microstructure formation can be improved.
  • suitable additives include
  • the demolding temperature can be reached faster, and consequently the cycle times can be shortened.
  • Impact additives elastomeric moieties
  • EPDM ethylene-propylene-diene monomer
  • additives can be incorporated which
  • Additives include hydrophobic additives.
  • Marking agents such as fluorescent agents to introduce into the base plastic, which allow a clear identification of the respective component.
  • the presence of such markers allows the user to easily control whether it is the component supplied to him is an original or an imitation which may not fulfill the required qualities.
  • Compatibilizer for the specific combination of two per se incompatible polymers e.g. PE / PP are added to PA.
  • Particularly suitable as intermediaries are so-called “compatibility mediators", such as
  • suitable additives such as polar plasticizers, cause no water to be included but still achieve the properties that result from a conventionally conditioned component.
  • fillers and additives and other additives mentioned in the preceding paragraphs can be added in a particularly simple manner to the base plastic used in each case if the IMC method is used to produce the respective component for rail fastening. By applying this method, the respective fillers and additives can be easily alone or in combination with reinforcing fibers in the
  • the properties of the components according to the invention for a rail fastening can be further optimized by the fact that the base plastic used in each case
  • Blowing agent is added for foaming.
  • Base plastic at least on certain sections or in total as foam with a comparably high
  • Pore content is formed, is a reduced
  • volume increase the time required for the filling of the respective mold, be shortened, whereby in the result a shortening of the cycle time required for the production of the components is achieved. Also results from the foaming minimizing the delay during solidification of the components and it can not
  • a high gas loading of the melt with chemical and physical blowing agents leads to the formation of an integral foam structure in the molding interior.
  • Rail fasteners are suitable for the reduction of the density of the base plastic obtained by the addition of foaming agents, since they allow “breathing tools” with which highly foamed integral structures and, concomitantly, higher specific bending stiffness can be achieved.
  • the physically acting foaming agents include
  • the invention is based on a
  • Rail S fixed on a solid, formed for example by a concrete sleeper underground U.
  • Angled guide plates 2,3 define between them one formed on the top of the shim 1
  • Rail S is also conventional in terms of its components.
  • the here formed as a concrete sleeper solid underground U are two
  • Angle guide plates 22,23 also define between a AufStand Design 24, which is formed here at the top of the solid substrate U.
  • the angle guide plates 22,23 are on the side of the rail 28, so that they derive the transverse forces occurring when driving over the rail S by a rail vehicle in the solid surface ü.
  • On the angled guide plates 22,23 is also here as in the embodiment of FIG. 1 each have a W-shaped spring element 29,30, also referred to as a clamp, supported by means of a respective
  • Threshold screw 31,32 braced against the ground U.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un élément structural conçu pour des systèmes de fixation de rails, produit à partir d'une matière plastique renforcée par des fibres, constituée d'une matière plastique de base dans laquelle sont intégrées des fibres de renforcement. L'élément structural selon l'invention peut être produit de manière peu onéreuse à partir d'une matière plastique et permet d'allier un faible poids à une résistance mécanique adaptée de manière optimale aux exigences particulières, avec la liberté de configuration la plus grande possible. A cet effet, un processus de compoundage par moulage par injection est employé, et la longueur des fibres de renforcement est égale en moyenne à au moins 200 μm.
EP13701238.1A 2012-01-26 2013-01-18 Éléments structuraux produits à partir d'une matière plastique renforcée par des fibres et conçus pour des systèmes de fixation de rails pour des véhicules sur rails Withdrawn EP2807010A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012001419 2012-01-26
PCT/EP2013/050987 WO2013110558A1 (fr) 2012-01-26 2013-01-18 Éléments structuraux produits à partir d'une matière plastique renforcée par des fibres et conçus pour des systèmes de fixation de rails pour des véhicules sur rails

Publications (1)

Publication Number Publication Date
EP2807010A1 true EP2807010A1 (fr) 2014-12-03

Family

ID=47603681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13701238.1A Withdrawn EP2807010A1 (fr) 2012-01-26 2013-01-18 Éléments structuraux produits à partir d'une matière plastique renforcée par des fibres et conçus pour des systèmes de fixation de rails pour des véhicules sur rails

Country Status (6)

Country Link
US (1) US20140371373A1 (fr)
EP (1) EP2807010A1 (fr)
CN (1) CN104093541A (fr)
DE (1) DE202013012093U1 (fr)
RU (1) RU2014134725A (fr)
WO (1) WO2013110558A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2014320579A1 (en) * 2013-09-13 2016-03-10 Schwihag Ag Rail fastening system
EP3049572B1 (fr) * 2013-09-26 2017-03-29 Heico Befestigungstechnik Gmbh Élément de fixation de rail et système équipé d'un tel élément de fixation de rail
DE102016103316B4 (de) * 2016-02-25 2022-12-29 Semperit Ag Holding Schienenbefestigungssystem
DE102016114172A1 (de) * 2016-08-01 2018-02-01 Edilon Sedra Gmbh Schiene mit elektrischer Isolierung
MX2021003890A (es) 2018-10-01 2022-01-19 Pandrol Ltd Ensamblaje de asiento de carril de vía férrea transparente.
CN109515258A (zh) * 2018-10-22 2019-03-26 盐城同环机电科技有限公司 一种汽车座椅滑轨
DE102020132029A1 (de) * 2020-12-02 2022-06-02 Vossloh Fastening Systems Gmbh Elastische zwischenplatte und anordnung zur befestigung einer schiene für ein schienenfahrzeug

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DE4415195C2 (de) * 1994-04-30 1996-09-19 Hoechst Ag Langfaserverstärkte Schrauben und Gewindestäbe aus thermoplastischen Kunststoffen, diese Schrauben und Gewindestäbe und Verfahren zu deren Herstellung
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US20080009576A1 (en) * 2006-06-30 2008-01-10 Alexander Charles W Process for manufacturing of thermoplastic composites with improved properties
ES1064713Y (es) * 2007-01-26 2007-07-16 Mondragon Soluciones S L U Placa de apoyo para sujeciones flexibles de railes ferroviarios
WO2009095441A1 (fr) * 2008-01-31 2009-08-06 Basf Se Matières de moulage à base de polyamide[5,10] renforcées par fibres
DE102009041848A1 (de) * 2009-09-18 2011-03-24 Vossloh-Werke Gmbh System zum Befestigen einer Schiene auf einem festen Untergrund und Befestigung einer Schiene

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See references of WO2013110558A1 *

Also Published As

Publication number Publication date
CN104093541A (zh) 2014-10-08
DE202013012093U1 (de) 2015-03-11
RU2014134725A (ru) 2016-03-20
WO2013110558A1 (fr) 2013-08-01
US20140371373A1 (en) 2014-12-18

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