EP3158126A1 - Method for coating a tension member, and use thereof - Google Patents

Method for coating a tension member, and use thereof

Info

Publication number
EP3158126A1
EP3158126A1 EP15723886.6A EP15723886A EP3158126A1 EP 3158126 A1 EP3158126 A1 EP 3158126A1 EP 15723886 A EP15723886 A EP 15723886A EP 3158126 A1 EP3158126 A1 EP 3158126A1
Authority
EP
European Patent Office
Prior art keywords
rope
tension member
coating
compression
construction
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
EP15723886.6A
Other languages
German (de)
French (fr)
Other versions
EP3158126B1 (en
Inventor
Florian LOTZ
Marius DREIER
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.)
ContiTech Transportbandsysteme GmbH
Original Assignee
ContiTech Transportbandsysteme 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 ContiTech Transportbandsysteme GmbH filed Critical ContiTech Transportbandsysteme GmbH
Publication of EP3158126A1 publication Critical patent/EP3158126A1/en
Application granted granted Critical
Publication of EP3158126B1 publication Critical patent/EP3158126B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/02—Machine details; Auxiliary devices
    • D07B7/14—Machine details; Auxiliary devices for coating or wrapping ropes, cables, or component strands thereof
    • D07B7/145—Coating or filling-up interstices
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
    • D07B7/16—Auxiliary apparatus
    • D07B7/18—Auxiliary apparatus for spreading or untwisting ropes or cables into constituent parts for treatment or splicing purposes
    • D07B7/185—Auxiliary apparatus for spreading or untwisting ropes or cables into constituent parts for treatment or splicing purposes for temporarily untwisting ropes or cables into constituent parts for applying a coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2202/00—Metallic substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2256/00—Wires or fibres
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/0613—Reinforcing cords for rubber or plastic articles the reinforcing cords being characterised by the rope configuration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2047—Cores
    • D07B2201/2052—Cores characterised by their structure
    • D07B2201/2053—Cores characterised by their structure being homogeneous
    • D07B2201/2054—Cores characterised by their structure being homogeneous comprising foam material
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2075—Fillers
    • D07B2201/2079—Fillers characterised by the kind or amount of filling
    • D07B2201/2081—Fillers characterised by the kind or amount of filling having maximum filling
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2076—Power transmissions

Definitions

  • the invention relates to a method for coating a tension member, in particular for conveyor belts, in particular a tension member which is designed as a steel cable.
  • Conveyor belts have a support side and a running side cover plate each made of a polymeric material having elastic properties and an embedded tension member in the form of parallel in spellgurtlssenscardi ropes, which in
  • the traction-transmitting carcass of a conveyor belt consists of textile and / or steel cable inserts, which are usually surrounded by at least one adhesive rubber mixture.
  • the carcasses are surrounded on all sides by wear-resistant rubber cover plates and a rubber edge protection.
  • Punch protection devices may be present.
  • Beaufschlagungsfestmaschine They are usually highly resistant to abrasion, rotting and corrosion, chemically resistant and thermally stable, leaving a long
  • the steel cables are usually arranged as a position in a plane between the cover plates.
  • the steel cables are for reasons of adhesion and the
  • Corrosion protection often galvanized, usually have a diameter of 2.8 to 16.0 mm and can consist of about 40 to 250 individual wires
  • adhesive rubber mixtures used in addition to the optimization of the adhesion as such during the vulcanization process in the steel cables to flow to allow a better seal.
  • the complete penetration of the entire rope which is also referred to as Autogumm réelle, is essential for the life of the steel rope and thus also for the entire conveyor belt. If no complete fürgumm réelle takes place, cavities remain open in the rope construction, which, for example, liquids such as water, oils, etc. can move in the rope and it too
  • the object of the invention is therefore to provide a method which ensures a complete fürgummtechnik of the rope, so that the number of open cavities is significantly reduced and thus prevents transport or migration of liquids in the rope construction and especially within the rope construction can be.
  • This object is achieved in that the method at least the following
  • the coating of the tension member is usually done in a dip. So far, usually the tension member was simply immersed in the dip and again
  • the compression of the tensile structure can be done in different ways.
  • a combination of said, in particular of overpressure and negative pressure in a suitable device is also possible and advantageous.
  • the rope for the conveyor belt is usually constructed of several strands, which in turn consist of individual wires.
  • the most common constructions are 7x7, with a rope of 7 strands, each consisting of 7 wires, 1x19 + 7x7, with a core strands of 19 strands and outer strands of 7 strands, and 7x19, with a rope of 7 strands, each one Litz consists of 19 wires.
  • It is preferably a steel cable or a steel hybrid rope, in which at least 20 vol .-% of the rope made of steel.
  • the coated according to the inventive method tensile carrier is preferably used for the production of conveyor belts or conveyor belts.
  • Conveyor belts are generally used for bulk goods (such as coal, ore, sand, cement, etc.), while conveyor belts are commonly used for general cargo (parcels, etc.). Conveyor belts are generally longer, wider, thicker and stronger than conveyor belts. in the
  • the present invention is thus suitable both for conveyor belts and for conveyor belts, in which ropes are used in each case, which are constructed essentially of steel.
  • the coating agent used or the coating composition used is selected depending on the material of the tension member and its construction. In this respect, all known coating materials can be used.
  • the coating composition is preferably based on at least one elastomer.
  • the elastomer may be rubbers, but also to thermoplastic elastomers, such as, for example, polyurethane act. However, it is preferably a rubber selected from the group consisting of
  • Fluorororubber (FPM).
  • the rubbers mentioned can be used alone or in the
  • the coating composition usually still contains at least one plasticizer and / or at least one
  • Solvent via which, as a rule, the viscosity and / or the adhesion or the stickiness of the coating composition can be adjusted.
  • the coating composition may additionally contain at least one blowing agent.
  • inorganic and organic compounds or microspheres can be used as blowing agents.
  • Inorganic or organic compounds used as blowing agents are usually so-called propellants, e.g. Azo and diazo compounds which, under the influence of heat or catalysts, split off gases (e.g., N 2 or CO 2) to allow pore formation.
  • propellants e.g. Azo and diazo compounds which, under the influence of heat or catalysts, split off gases (e.g., N 2 or CO 2) to allow pore formation.
  • the microspheres are hollow spheres (microspheres) with a diameter in the ⁇ range of glass, phenolic resin, carbon or thermoplastic material.
  • the microspheres are available in already expanded form but also in expandable form on the market. In order to achieve an increase in volume of the coating, which leads to an optimization of the through-gumming of the rope, are preferred
  • microspheres which are filled with a blowing agent and expand when heated.
  • Such microspheres are z. B. sold under the name Expancel ® by the company Akzo Nobel.
  • the individual wires, especially the steel wires, the tension member construction are usually still provided with an adhesive.
  • adhesive are preferably zinc, brass, zinc compounds, brass compounds, isocyanates, epoxides or other known adhesives.
  • Fig. 1 shows a first variant of the inventive method based on a schematic representation.
  • To be coated tensile carrier 2 is passed through a dip 1.
  • At least two opposing points are compressed by at least two compression units, preferably compression rollers ("squeeze rollers"), the tension member, whereby the tension member does not have to be bent.
  • Fig. 2 shows a second variant of the method according to the invention with reference to a schematic representation.
  • tension member 2 is continuously passed through a tube, from the reasons above only a lower half shell is shown. Based on suitable facilities, a negative pressure 5 is generated.
  • overpressure 6 the coating mass will be pressed into the rope at another location.
  • only a negative pressure 5 or an overpressure 6 can be generated.

Abstract

The invention relates to a method for coating a tension member, in particular for conveyor belts, in particular a tension member which is in the form of a steel rope. The method according to the invention allows complete penetration of the tension member structure. The method comprises at least the following steps: - reversible compression of the tension member (2), which is designed in the form of a rope structure (2), during coating for a short time and - penetration of the coating mass into the opened rope structure (2), the rope (2) being completely penetrated.

Description

VERFAHREN ZUR BESCHICHTUNG EINES ZUGTRÄGERS, SOWIE DESSEN VERWENDUNG  PROCESS FOR COATING A CONVEYOR, AND ITS USE
Beschreibung description
Die Erfindung betrifft ein Verfahren zur Beschichtung eines Zugträgers insbesondere für Fördergurte, insbesondere eines Zugträgers welcher als Stahlseil ausgebildet ist. The invention relates to a method for coating a tension member, in particular for conveyor belts, in particular a tension member which is designed as a steel cable.
Fördergurte besitzen eine tragseitige und eine laufseitige Deckplatte aus jeweils einem polymeren Werkstoff mit elastischen Eigenschaften sowie einen eingebetteten Zugträger in Form von in Fördergurtlängsrichtung parallel verlaufenden Seilen, welche im Conveyor belts have a support side and a running side cover plate each made of a polymeric material having elastic properties and an embedded tension member in the form of parallel in Fördergurtlängsrichtung ropes, which in
Wesentlichen aus Stahl aufgebaut sein können. Can be constructed essentially of steel.
Die zugkraftübertragende Karkasse eines Fördergurtes besteht aus Textil- und / oder Stahlseileinlagen, die in der Regel von wenigstens einer Haftgummimischung umgeben sind. Die Karkassen sind allseitig von verschleißfesten Gummideckplatten und einem Gummikantenschutz umgeben. Zusätzlich können bei Bedarf noch diverse The traction-transmitting carcass of a conveyor belt consists of textile and / or steel cable inserts, which are usually surrounded by at least one adhesive rubber mixture. The carcasses are surrounded on all sides by wear-resistant rubber cover plates and a rubber edge protection. In addition, if required, still diverse
Durchschlags Schutzeinrichtungen vorhanden sein. Punch protection devices may be present.
Fördergurte bei denen die Karkasse im Wesentlichen aus Stahlseilen besteht, werden als Stahlseilfördergurte bezeichnet. Stahlseilfördergurte ermöglichen hervorragende  Conveyor belts in which the carcass consists essentially of steel cables are referred to as steel cord conveyor belts. Steel cord conveyor belts allow outstanding
Transportleistungen auch bei harter Beanspruchung. Ihre robuste Konstruktion garantiert sowohl eine hohe Bruchkraft bei stärkster Förderleistung, als auch eine gute Transport services even under heavy use. Their sturdy design guarantees both a high breaking load at the highest output and a good one
Beaufschlagungsfestigkeit. Sie sind in der Regel besonders abriebfest, verrottungs- und korrosionsbeständig, chemisch resistent und thermisch stabil, so dass eine lange  Beaufschlagungsfestigkeit. They are usually highly resistant to abrasion, rotting and corrosion, chemically resistant and thermally stable, leaving a long
Lebensdauer bei niedrigem Wartungsbedarf gewährleistet ist. Life is guaranteed at low maintenance.
Im Stahlseilfördergurt sind die Stahlseile meist als Lage in einer Ebene zwischen den Deckplatten angeordnet. Die Stahlseile sind aus Gründen der Haftung und des  In Stahlseilfördergurt the steel cables are usually arranged as a position in a plane between the cover plates. The steel cables are for reasons of adhesion and the
Korrosionsschutzes häufig verzinkt, besitzen zumeist einen Durchmesser von 2,8 bis 16,0 mm und können aus ca. 40 bis zu 250 Einzeldrähten bestehen Zur Verbesserung der Haftung werden häufig zusätzlich noch Haftmischungen, auch als Haftgummimischungen bezeichnet, verwendet, die neben der Optimierung der Haftung als solche auch während des Vulkanisationsprozesses in die Stahlseile hineinfließen sollen um eine bessere Abdichtung zu ermöglichen. Das vollständige Durchdringen des gesamten Seils, die auch als Durchgummierung bezeichnet wird, ist essentiell für die Lebensdauer des Stahlseils und somit auch für den gesamten Fördergurt. Findet keine vollständige Durchgummierung statt, so verbleiben Hohlräume in der Seilkonstruktion offen, wodurch bspw. Flüssigkeiten wie Wasser, Öle, etc. im Seil wandern können und es zu Corrosion protection often galvanized, usually have a diameter of 2.8 to 16.0 mm and can consist of about 40 to 250 individual wires To improve the adhesion adhesive mixtures are also often used, also referred to as adhesive rubber mixtures, used in addition to the optimization of the adhesion as such during the vulcanization process in the steel cables to flow to allow a better seal. The complete penetration of the entire rope, which is also referred to as Durchgummierung, is essential for the life of the steel rope and thus also for the entire conveyor belt. If no complete Durchgummierung takes place, cavities remain open in the rope construction, which, for example, liquids such as water, oils, etc. can move in the rope and it too
fortschreitenden Oxidationsprozessen, insbesondere zu Korrosion, unter zunehmender Alterung und einem Frühausfall des gesamten Fördergurtes kommen kann. Die progressive oxidation processes, in particular to corrosion, with increasing aging and premature failure of the entire conveyor belt can come. The
vollständige Durchdringung der gesamten Seilkonstruktion ist umso schwerer, je größer der Seildurchmesser ist. Bei geschlossenen Seilkonstruktionen, welche auch als parallelschlag- oder gleichschlag-Konstruktion bezeichnet werden, ist sie auch bei geringeren Durchmessern kaum zu erreichen. Bei offenen Seilkonstruktionen, welche auch als Kreuzschlagseilkonstruktion bezeichnet wird, existieren bei der Anbringung der Haftgummierung oft dynamische Probleme. full penetration of the entire rope construction is more difficult, the larger the rope diameter. In closed rope constructions, which are also referred to as parallel impact or Gleichschlag construction, it is hardly reachable even at smaller diameters. In open rope constructions, which is also referred to as Kreuzschlagsseilkonstruktion, exist in the attachment of the adhesive rubber often dynamic problems.
Zur Beschichtung, insbesondere von Stahlseilen, sind verschiedene Lösungsansätze bekannt. Zum einen lässt sich bspw. ein Überzug auf die Seile aufbringen, siehe u.a. DE 44 38 420 AI, DE 690 29 389 T2 oder DE 79 36 995 Ul. Dies führt allerdings zu den bereits oben erwähnten Nachteilen. In DE 694 21 090 T2 wird beispielsweise die Herstellung einer offenen Stahlcordkonstruktion beschrieben, bei dem die Herstellung in einem aufwendigen Verfahren gezielt unter Bildung von zusätzlichen Mikrolücken erfolgt, in die bei einer späteren Gummierung die Gummierungsmasse eindringen kann. Die Aufgabe der Erfindung besteht daher darin, ein Verfahren bereitzustellen, welches eine vollständige Durchgummierung des Seils gewährleistet, so dass die Anzahl von offenen Hohlräumen deutlich reduziert wird und somit ein Transport bzw. eine Wanderung von Flüssigkeiten in die Seilkonstruktion und vor allem innerhalb der Seilkonstruktion verhindert werden kann. Gelöst wird diese Aufgabe dadurch, dass das Verfahren wenigstens folgende For coating, especially steel cables, various approaches are known. On the one hand can be, for example, apply a coating on the ropes, see, inter alia, DE 44 38 420 AI, DE 690 29 389 T2 or DE 79 36 995 Ul. However, this leads to the disadvantages already mentioned above. DE 694 21 090 T2, for example, describes the production of an open steel cord construction in which the production takes place in a complex process in a targeted manner with the formation of additional micro-gaps into which the gum mass can penetrate during a subsequent gumming. The object of the invention is therefore to provide a method which ensures a complete Durchgummierung of the rope, so that the number of open cavities is significantly reduced and thus prevents transport or migration of liquids in the rope construction and especially within the rope construction can be. This object is achieved in that the method at least the following
Verfahrens schritte enthält: Procedural steps contains:
- Kurzzeitige reversible Kompression des Zugträgers, welcher in Seilkonstruktion ausgebildet ist, während des Beschichtungsvorgangs und  - Short-term reversible compression of the tension member, which is formed in rope construction, during the coating process and
- Eindringen der Beschichtungsmasse in die geöffnete Seilkonstruktion, wobei das Seil vollständig durchdrungen wird.  - Penetration of the coating material in the open rope construction, wherein the rope is completely penetrated.
Das Beschichten des Zugträgers erfolgt in der Regel in einem Tauchbad. Bisher wurde üblicherweise der Zugträger einfach in das Tauchbad eingetaucht und wieder The coating of the tension member is usually done in a dip. So far, usually the tension member was simply immersed in the dip and again
herausgezogen. Dadurch wurde aber lediglich, wie bereits eingangs erwähnt, ein Überzug auf den Zugträger ausgebildet. Zur vollständigen Durchdringung der pulled out. As a result, however, only a coating was formed on the tension member, as already mentioned. For complete penetration of the
Zugträgerkonstruktion mit der Beschichtungsmasse wurde nun überaschenderweise herausgefunden, dass die Zugträgerkonstruktion während der Beschichtung im Tauchbad kurzfristig komprimiert werden kann, ohne dass hierbei die Seilkonstruktion als solches Nachteile erfährt. Dies bedeutet, dass die Kompression reversibel sein muss, damit das Seil in seine ursprüngliche Beschaffenheit, die nach den Anforderungen des Zugträgers ausgewählt wurde, zurückkehren kann. Zugträgerkonstruktion with the coating material has now been surprisingly found that the Zugträgerkonstruktion can be compressed during the coating in the dip briefly without experiencing this, the cable construction as such disadvantages. This means that the compression must be reversible to allow the rope to return to its original condition selected according to the requirements of the tension member.
Insbesondere bei geschlossenen Seilkonstruktionen war ein vollständiges Durchdringen bisher schwierig und bei bestimmten Seilkonstruktionen gar nicht möglich.  In particular, with closed rope constructions complete penetration was previously difficult and not possible with certain rope constructions.
Kurzzeitige Kompression bedeutet in diesem Zusammenhang, dass die Short-term compression in this context means that the
Zugträgerkonstruktion für 0,2 sec bis 5 min, bevorzugt für 0,2 sec bis 10 sec komprimiert wird. Zugträgerkonstruktion for 0.2 sec to 5 min, preferably for 0.2 sec to 10 sec is compressed.
Die Kompression der Zugträgerkonstruktion kann auf verschiedenen Wegen erfolgen. So ist es beispielsweise möglich, eine Kompression der Seilkonstruktion mittels Quetschung oder Unterdruck oder Überdruck zu erzeugen. Eine Kombination der genannten, insbesondere von Überdruck und Unterdruck in einer dafür geeigneten Vorrichtung ist ebenso möglich und vorteilhaft.  The compression of the tensile structure can be done in different ways. Thus, it is possible, for example, to generate a compression of the rope construction by means of pinching or negative pressure or overpressure. A combination of said, in particular of overpressure and negative pressure in a suitable device is also possible and advantageous.
Nach der Kompression erfolgt eine natürliche Entspannung der Seilkonstruktion, währenddessen die Beschichtungsmasse in die Seilkonstruktion einfließen kann. Die Verwendung von Unterduck benötigt in der Regel weniger Beschichtungsmasse, da sich die Beschichtungsmasse auch entweder in (Halb-)Schalen oder in einer Röhre befinden kann, durch die das Seil gezogen wird. Die kurzzeitige Kompression der Seilkonstruktion kann ggf. mit einem mechanischen oder einem physikalischen Öffnen der Seilkonstruktion kombiniert werden, um die vollständige Durchdringung zu optimieren. After compression, a natural relaxation of the rope construction, during which the coating material can flow into the rope construction takes place. The use of under-seal typically requires less coating weight because the coating composition may also be in either (half) shells or in a tube through which the rope is pulled. Short-term compression of the rope construction may be combined with mechanical or physical opening of the rope construction to optimize full penetration.
Das Seil für den Fördergurt ist in der Regel aus mehreren Litzen, welche wiederum aus einzelnen Drähten bestehen, aufgebaut. Die gängigsten Konstruktionen sind 7x7, mit einem Seil aus 7 Litzen, die je aus 7 Drähten bestehen, 1x19+7x7, mit einer Kernlitze aus 19 Einzeldrähten und äußeren Litzen aus je 7 Drähten, und 7x19, mit einem Seil aus 7 Litzen, wobei jede Litze aus 19 Drähten besteht. The rope for the conveyor belt is usually constructed of several strands, which in turn consist of individual wires. The most common constructions are 7x7, with a rope of 7 strands, each consisting of 7 wires, 1x19 + 7x7, with a core strands of 19 strands and outer strands of 7 strands, and 7x19, with a rope of 7 strands, each one Litz consists of 19 wires.
Bevorzugt handelt es sich um ein Stahlseil oder um ein Stahl-Hybrid-Seil, bei dem wenigstens 20 Vol.-% des Seils aus Stahl bestehen.  It is preferably a steel cable or a steel hybrid rope, in which at least 20 vol .-% of the rope made of steel.
Der nach dem erfindungsgemäßen Verfahren beschichtete Zugträger wird bevorzugt für die Herstellung von Fördergurten oder Transportbändern verwendet. In der Literatur wird häufig zwischen Fördergurten und Transportbändern unterschieden. Fördergurte werden in der Regel für Schüttgut (wie bspw. Kohle, Erze, Sand, Zement usw.) eingesetzt, während Transportbänder üblicherweise für Stückgut (Pakete usw.) benutzt werden. Fördergurte sind im Allgemeinen länger, breiter, dicker und stärker als Transportbänder. Im The coated according to the inventive method tensile carrier is preferably used for the production of conveyor belts or conveyor belts. In the literature, a distinction is often made between conveyor belts and conveyor belts. Conveyor belts are generally used for bulk goods (such as coal, ore, sand, cement, etc.), while conveyor belts are commonly used for general cargo (parcels, etc.). Conveyor belts are generally longer, wider, thicker and stronger than conveyor belts. in the
allgemeinen Sprachgebrauch vermischen sich allerdings die beiden Begrifflichkeiten oft. Die vorliegende Erfindung ist somit sowohl für Fördergurte als auch für Transportbänder geeignet, bei denen jeweils Seile zum Einsatz gelangen, die im Wesentlichen aus Stahl aufgebaut sind. However, the two terms are often mixed in common usage. The present invention is thus suitable both for conveyor belts and for conveyor belts, in which ropes are used in each case, which are constructed essentially of steel.
Das verwendete Beschichtungsmittel bzw. die verwendete Beschichtungsmasse wird in Abhängigkeit vom Material des Zugträgers und dessen Konstruktion ausgewählt. Insofern können alle bekannten Beschichtungsmaterialien verwendet werden.  The coating agent used or the coating composition used is selected depending on the material of the tension member and its construction. In this respect, all known coating materials can be used.
Die Beschichtungsmasse ist bevorzugt auf der Basis wenigstens eines Elastomers aufgebaut. Bei dem Elastomer kann es sich um Kautschuke, aber auch um thermoplastische Elastomere, wie bspw. Polyurethan, handeln. Es handelt sich bevorzugt allerdings um einen Kautschuk, der ausgewählt ist aus der Gruppe, bestehend aus The coating composition is preferably based on at least one elastomer. The elastomer may be rubbers, but also to thermoplastic elastomers, such as, for example, polyurethane act. However, it is preferably a rubber selected from the group consisting of
Naturkautschuk (NR) und / oder Butadien-Kautschuk (BR) und / oder Chloropren- Kautschuk (CR) und / oder Styrol-Butadien-Kautschuk (SBR) und / oder Nitrilkautschuk (NBR, HNBR) und / oder Butylkautschuk (HR) und / oder Ethylen-Propylen-Kautschuk (EPM) und / oder Ethylen-Propylen-Dien-Kautschuk (EPDM) und / oder Polyacrylat- Kautschuk (ACM) und / oder Epichlorhydrinkautschuk (ECO) und / oder Chlorsulfonierter Polyethylenkautschuk (CSM) und / oder Silikonkautschuk (MVQ) und / oder Natural rubber (NR) and / or butadiene rubber (BR) and / or chloroprene rubber (CR) and / or styrene-butadiene rubber (SBR) and / or nitrile rubber (NBR, HNBR) and / or butyl rubber (HR) and / or ethylene-propylene rubber (EPM) and / or ethylene-propylene-diene rubber (EPDM) and / or polyacrylate rubber (ACM) and / or epichlorohydrin rubber (ECO) and / or chlorosulfonated polyethylene rubber (CSM) and / or Silicone rubber (MVQ) and / or
Fluorkautschuk (FPM). Die genannten Kautschuke können hierbei alleine oder im Fluororubber (FPM). The rubbers mentioned can be used alone or in the
Verschnitt eingesetzt werden. Besonders gut geeignet sind als BeschichtungsmassenCuttings are used. Particularly suitable as coating compositions
Mischungen auf der Basis von SBR und / oder NR und / oder BR. Die Beschichtungsmasse enthält zumeist noch wenigstens einen Weichmacher und / oder wenigstens ein Blends based on SBR and / or NR and / or BR. The coating composition usually still contains at least one plasticizer and / or at least one
Lösungsmittel, über die in der Regel die Viskosität und / oder die Haftung bzw. die Klebrigkeit der Beschichtungsmasse eingestellt werden kann. Solvent, via which, as a rule, the viscosity and / or the adhesion or the stickiness of the coating composition can be adjusted.
Des Weiteren kann die Beschichtungsmasse zusätzlich noch wenigstens ein Blähmittel enthalten. Furthermore, the coating composition may additionally contain at least one blowing agent.
Als Blähmittel können sowohl anorganische sowie organische Verbindungen oder auch Mikrokugeln eingesetzt werden. Anorganische oder organische Verbindungen, die als Blähmittel verwendet werden, sind in der Regel so genannte Treibgase, wie z.B. Azo- und Diazo-Verbindungen, die unter dem Einfluss von Wärme oder Katalysatoren Gase (z.B. N2 oder C02) abspalten und somit eine Porenbildung ermöglichen. Bei den Mikrokugeln handelt es sich um hohle Kugeln (Mikro Sphären) mit einem Durchmesser im μιη-Bereich aus Glas, Phenolharz, Kohlenstoff oder thermoplastischem Kunststoffmaterial. Die Mikrokugeln sind in bereits expandierter Form aber auch in expandierbarer Form auf dem Markt erhältlich. Um eine Volumenzunahme der Beschichtung erzielen zu können, welche zu einer Optimierung der Durchgummierung des Seils führt, werden bevorzugt  As a blowing agent both inorganic and organic compounds or microspheres can be used. Inorganic or organic compounds used as blowing agents are usually so-called propellants, e.g. Azo and diazo compounds which, under the influence of heat or catalysts, split off gases (e.g., N 2 or CO 2) to allow pore formation. The microspheres are hollow spheres (microspheres) with a diameter in the μιη range of glass, phenolic resin, carbon or thermoplastic material. The microspheres are available in already expanded form but also in expandable form on the market. In order to achieve an increase in volume of the coating, which leads to an optimization of the through-gumming of the rope, are preferred
expandierbare Mikrokugeln verwendet, die mit einem Treibmittel gefüllt sind und sich beim Erwärmen ausdehnen. Derartige Mikrokugeln werden z. B. unter dem Namen Expancel® von der Firma Akzo Nobel vertrieben. used expandable microspheres, which are filled with a blowing agent and expand when heated. Such microspheres are z. B. sold under the name Expancel ® by the company Akzo Nobel.
Eine Kombination von expandierten und expandierbaren Mikrokugeln ist möglich. Die einzelnen Drähte, insbesondere der Stahldrähte, der Zugträgerkonstruktion, sind in der Regel noch mit einem Adhäsionsmittel versehen. Hierbei handelt es sich bevorzugt um Zink, Messing, Zinkverbindungen, Messingverbindungen, Isocyanate, Epoxide oder weitere bekannte Adhäsionsmittel. Diese gewährleiten eine bessere Haftung der A combination of expanded and expandable microspheres is possible. The individual wires, especially the steel wires, the tension member construction, are usually still provided with an adhesive. These are preferably zinc, brass, zinc compounds, brass compounds, isocyanates, epoxides or other known adhesives. These guarantee a better adhesion of the
Beschichtungsmasse an dem einzelnen Draht. Coating mass on the single wire.
Anhand von zwei Figuren soll die Erfindung näher erläutert werden, ohne dabei auf diese beschränkt zu sein. Based on two figures, the invention will be explained in more detail, without being limited to these.
Fig. 1 zeigt eine erste Variante des erfindungs gemäßen Verfahrens anhand einer schematischen Darstellung. Der zu beschichtende Zugträger 2 wird durch ein Tauchbad 1 geführt. An wenigstens zwei sich gegenüberliegenden Stellen wird durch wenigsten zwei Kompressionseinheiten, bevorzugt Kompressionsrollen („Quetschrollen"), der Zugträger komprimiert. Hierbei muss der Zugträger nicht gebogen werden. Fig. 1 shows a first variant of the inventive method based on a schematic representation. To be coated tensile carrier 2 is passed through a dip 1. At least two opposing points are compressed by at least two compression units, preferably compression rollers ("squeeze rollers"), the tension member, whereby the tension member does not have to be bent.
Fig. 2 zeigt eine zweite Variante des erfindungsgemäßen Verfahrens anhand einer schematischen Darstellung. Der zu beschichtende Zugträger 2 wird kontinuierlich durch eine Röhre geführt, von der aus Über sichts gründen lediglich eine untere Halbschale abgebildet ist. Anhand geeigneter Einrichtungen wird ein Unterdruck 5 erzeugt. Zusätzlich wird mittels Überdruck 6 die Beschichtungsmasse in das Seil an einer anderen Stelle hineingepresst werden. Es kann optional auch nur ein Unterdruck 5 oder ein Überdruck 6 erzeugt werden. Fig. 2 shows a second variant of the method according to the invention with reference to a schematic representation. To be coated tension member 2 is continuously passed through a tube, from the reasons above only a lower half shell is shown. Based on suitable facilities, a negative pressure 5 is generated. In addition, by means of overpressure 6, the coating mass will be pressed into the rope at another location. Optionally, only a negative pressure 5 or an overpressure 6 can be generated.
Bezugszeichenliste (Teil der Beschreibung) List of Reference Numerals (part of the description)
1 Tauchbad 1 dip
2 Zugträger in Seilkonstruktion 2 tension members in rope construction
3, 3' Kompressionsrollen 3, 3 'compression rollers
4 untere Halbschale einer Röhre 4 lower half-shell of a tube
5 Unterdruck 5 negative pressure
6 Überdruck 6 overpressure

Claims

Patentansprüche claims
1. Verfahren zur Beschichtung eines Zugträgers (2), gekennzeichnet durch wenigstens folgende Verfahrensschritte: 1. A method for coating a tension member (2), characterized by at least the following method steps:
- Kurzzeitige reversible Kompression des Zugträgers, welcher in Seilkonstruktion (2) ausgebildet ist, während des Beschichtungsvorgangs und  - Short-term reversible compression of the tension member, which is formed in rope construction (2), during the coating process and
- Eindringen der Beschichtungsmasse in die geöffnete Seilkonstruktion (2), wobei das Seil (2) vollständig durchdrungen wird.  - Penetration of the coating material in the open rope construction (2), wherein the rope (2) is completely penetrated.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Kompression durch Kompressionsrollen (3, 3 ') erfolgt. 2. The method according to claim 1, characterized in that the compression by compression rollers (3, 3 ') takes place.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Zugträger (2) vor der Kompression in ein Tauchbad (1) eingeführt wird. 3. The method according to claim 1 or 2, characterized in that the tension member (2) is introduced prior to compression in a dip bath (1).
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die4. The method according to any one of claims 1 to 3, characterized in that the
Kompression durch Erzeugung eines Unterdrucks (5) erfolgt. Compression by generating a negative pressure (5) takes place.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die5. The method according to any one of claims 1 to 4, characterized in that the
Kompression durch Erzeugung eines Überdrucks (6) erfolgt. Compression by generating an overpressure (6) takes place.
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Seil (2) eine geschlossene Konstruktion aufweist. 6. The method according to any one of claims 1 to 5, characterized in that the cable (2) has a closed construction.
7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Seil (2) ein Stahlseil oder ein Stahl-Hybrid-Seil ist. 7. The method according to any one of claims 1 to 6, characterized in that the rope (2) is a steel cable or a steel hybrid rope.
8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die kurzzeitige Kompression innerhalb von 2 sec bis 5 min erfolgt. 8. The method according to any one of claims 1 to 7, characterized in that the short-term compression takes place within 2 sec to 5 min.
9. Verwendung eines nach einem der Ansprüche 1 bis 8 beschichteten Zugträgers (2) für die Herstellung eines Fördergurtes. 9. Use of a coated according to one of claims 1 to 8 tensile carrier (2) for the production of a conveyor belt.
EP15723886.6A 2014-06-23 2015-05-12 Method for coating a tension member, and use thereof Active EP3158126B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014211931.6A DE102014211931A1 (en) 2014-06-23 2014-06-23 Process for coating a tension member, in particular for conveyor belts
PCT/EP2015/060398 WO2015197256A1 (en) 2014-06-23 2015-05-12 Method for coating a tension member, and use thereof

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EP3158126A1 true EP3158126A1 (en) 2017-04-26
EP3158126B1 EP3158126B1 (en) 2020-01-15

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DE (1) DE102014211931A1 (en)
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LU79218A1 (en) 1978-03-13 1979-10-29 Bekaert Sa Nv REINFORCING METAL CORDAGE AND ITS MANUFACTURING METHOD
US4344278A (en) * 1980-05-30 1982-08-17 Projected Lubricants, Inc. Lubricated wire rope
DE3304789A1 (en) * 1983-02-11 1984-08-23 Vsesojuznyj naučno-issledovatel'skij, proektno-konstruktorskij i technologičeskij institut kabelnoj promyšlennosti, Moskva Twisted strand and device for the coating of wires of the twisted strand
DE69029389T2 (en) 1990-08-07 1997-05-22 Tokyo Rope Mfg Co Process for the production of polymer-coated steel wires for rubber reinforcement
CA2109904C (en) * 1992-12-18 2004-09-14 Pol Bruyneel Multi-strand steel cord
ES2139878T3 (en) 1993-12-15 2000-02-16 Bekaert Sa Nv OPEN STRUCTURE FOR STEEL CORDS.
DE4438420A1 (en) 1994-10-27 1996-05-02 Thomcast Gmbh Sendeanlagen Fue Fixture for coating steel cable esp. with anticorrosive mixture
DE29816936U1 (en) * 1998-09-22 1998-12-24 Rosenberger Tauwerk Gmbh Impregnated rope
CN102400402A (en) * 2010-09-08 2012-04-04 盐城神力制绳有限公司 Impregnation process for twisted fiber cable
CN104160087B (en) * 2012-03-01 2017-06-27 帝斯曼知识产权资产管理有限公司 The method and apparatus that rope is impregnated with fluent material

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EP3158126B1 (en) 2020-01-15
DE102014211931A1 (en) 2015-12-24

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