摘要:
Bei einem Drahtseil sind mehrere aus verseilten Drähten (16) bestehende Litzen (15) vorgesehen, die um eine Kunststoffseele (11) herum verseilt und zwischen diesen längliche Einlagen (12) angeordnet sind. Diese Einlagen (12) erstrecken sich annähernd bis zum Aussenumfang des Drahtseils (10) und sie weisen in dem mit den Litzen (15) in Berührung stehenden Bereich beidseitig jeweils einen den Litzen (15) angepassten Radius auf. Die verseilten Litzen (15) liegen über einen bestimmten Umfangsbereich (11') unmittelbar auf der Kunststoffseele (11) auf, währenddem die Einlagen (12) jeweils innenseitig mit einem Abstand (a) zur Kunststoffseele (11) angeordnet sind. Damit ist dieses Drahtseil in Bezug auf eine erhöhte Lebensdauer optimal ausgelegt.
摘要:
The invention relates to a hybrid rope having a core containing high modulus polyethylene (HMPE) yarns surrounded by an outer layer containing steel wire strands, wherein the core is coated with a plastomer, the plastomer being a semi- crystalline copolymer of ethylene or propylene and one or more C2 to C12 α-olefin co-monomers and the plastomer having a density as measured according to ISO1183 of between 870 and 930 kg/m 3 .
摘要:
The invention relates to a method for producing a multi-layer metal cord having multiple concentric layers of strands, comprising one or more inner layers and an outer layer, of the type that is "rubberised in situ", i.e. rubberised from the interior during the production thereof, using rubber or a rubber composition. The method includes at least the following steps: a step in which at least one inner layer is coated with the aforementioned rubber or rubber composition, by means of passage through at least one extrusion head; and a step in which the strands of the outer layer are assembled around the adjacent inner layer in order to form the multi-layer cable thus rubberised from the interior. The invention is characterised in that the rubber is a melt-extruded unsaturated thermoplastic elastomer, preferably a thermoplastic styrene (TPS) type elastomer, such as an SBS, SBBS, SIS or SBIS block copolymer.
摘要:
The invention relates to a method for producing a metal cord having three concentric layers (C1, C2, C3), of construction M+N+P, of the type that is "rubberised in situ", i.e. rubberised from the interior during the production thereof, using rubber or a rubber composition, said cord comprising: a first layer or core (C1) of diameter d c formed by M strand(s) of diameter d 1 , around which core N strands of diameter d 2 are wound together in the form of a helix with a pitch p 2 to form a second layer (C2). In addition, P strands of diameter d 3 are wound together around this second layer in the form of a helix with a pitch p 3 to form a third layer (C3). The method includes the following steps: a step in which the N strands of the second layer (C2) are assembled around the core (C1), so as to form an intermediate cord or "core strand" of construction M+N at a point known as the "assembly point"; a step in which the core and/or the core strand is/are coated with the aforementioned rubber or rubber composition upstream and/or downstream of the assembly point, by means of passage through at least one extrusion head; and a step in which the P strands of the third layer (C3) are assembled around the core strand (M+N) in order to form the cable of construction M+N+P thus rubberised from the interior. The invention is characterised in that the rubber is a melt-extruded unsaturated thermoplastic elastomer, preferably a thermoplastic styrene (TPS) type elastomer, such as an SBS, SBBS, SIS or SBIS block copolymer.
摘要:
A light weight cable bead core (30) is described having an inner core (33) made of a metal wire (34) with an outer sheath (35) of steel cord wires (36). Each cord (36) is made of a plurality of filaments (37). The bead core (30) is particularly suited for heavy-duty service conditions in tires (100) for aircraft, off-road equipment, and commercial trucks.
摘要:
A cord with an elongated cross-section and adapted for the reinforcement of plies in a pneumatic tire, comprises a layer of steel filaments that are wound around an untwisted monofilament core, the monofilament core having a tensile strength of at least 1800 N/mm², an elongation at rupture of at least 2 per cent and a breadth-to-thickness ratio of at least 2. This structure combines the properties of flat wires with those of steel cords having substantially round cross-sections.
摘要:
Bei einem Drahtseil mit wenigstens einer Kunststoffseele (11) und mehreren um diese herum verseilten Drahtlitzen (15) ist am Umfang der Kunststoffseele (11) für jede Drahtlitze (15) jeweils eine wendelförmige Nut (20) durch spanabhebende Bearbeitung erzeugt. Diese wendelförmigen Nuten (20) sind im Querschnitt jeweils dem Aussendurchmesser der Drahtlitzen (15) angepasst. Die Kunststoffseele (11) wird unmittelbar bevor die Drahtlitzen (15) auf diese aufgewickelt werden durch diese spanabhebende Bearbeitung mit den wendelförmigen Nuten (20) für die Aufnahme der Drahtlitzen (15) versehen. Durch diese Ausbildung des Drahtseils mit dieser spanabhebenden Bearbeitung zur Erzeugung von wendelförmigen Nuten der Kunststoffseele wird eine optimale Führung der Drahtlitzen im verseilten Zustand erzielt und damit entstehen Verbesserungen der Eigenschaften des Drahtseils insgesamt.
摘要:
An electric transmission-cable is provided, comprising a cable core having at least two individually coated and stranded wires, and a conductor surrounding the core, wherein the core is compacted. Further, a method of fabricating such compacted steel core is provided.