Abstract:
Provided are a rubber article reinforcing steel wire that is superior in bending fatigue properties to the related art and has a flat cross-sectional shape, and a rubber article using the wire. In a rubber article reinforcing steel wire 10, a major diameter and a minor diameter are substantially perpendicular to each other. Assuming that the major diameter is W, the minor diameter is T, a straight line that passes through a center of the major diameter in a width direction and is parallel to a minor diameter direction is L1, a straight line that passes through a center of the minor diameter in a width direction and is parallel to a major diameter direction is L2, an intersection point of the L1 and the L2 is a center point C, a region within a half of a distance from the center point C to a surface is a central region Rc, and a region outside the central region Rc is a surface layer region Rs, a Vickers hardness Hvc of the central region Rc is more than a Vickers hardness Hvs of the surface layer region Rs; and assuming that a Vickers hardness on the L1 in the surface layer region Rs is Hv1, and a Vickers hardness on the L2 in the surface layer region Rs is Hv2, relationships represented by Hvc - Hv1 ‰¤ 150, Hvc - Hv2 ‰¤ 150, Hv1/Hvc × 100 ‰¥ 85.11, and Hv2/Hvc × 100 ‰¥ 79.84 are satisfied.
Abstract:
Rope (4) having an eye (2). The rope (4) comprises a first rope portion (8) and a second rope portion (10). The first rope portion (8) and the second rope portion (10) are spliced into each other for forming a spliced connection for obtaining the eye (2). The first rope portion (8) and the second rope portion (10) are formed from an end portion of the rope (4).
Abstract:
The invention relates to a high modulus textile cord (50) having an at least triple twist (T1, T2, T3), comprising at least N strands (20a, 20b, 20c, 20d), where N is greater than 1, which strands are twisted together to a final twist T3 in a final direction D2, each strand being made up of M pre-strands (10a, 10b, 10c), where M is greater than 1, which pre-strands are in turn twisted to an intermediate twist T2 (T2a, T2b, T2c, T2d) in an intermediate direction D1 which is opposite to D2, wherein every pre-strand consists of a spun fibre (5) that has been twisted on itself to an initial twist T1 (T1a, T1b, T1c) in the direction D1 and wherein at least half the N times M spun fibres have an initial modulus of elasticity Mi greater than 2000 cN/tex. The textile cord can advantageously be used as reinforcement in vehicle pneumatic tires, especially in the belt or the carcass ply of said pneumatic tires.
Abstract:
Die Erfindung betrifft eine Gürtellage für einen Fahrzeugluftreifen, insbesondere für einen Nutzfahrzeugreifen, wobei die Gürtellage Stahlkorde der Konstruktion 1+N, mit N=4 oder N=5 mit einem einzigen Kernfilament und vier oder fünf Lagenfilament aufweist, wobei die Lagenfilamente sämtlich das Kernfilament (1) außen berühren und gleiche Durchmesser (D) aufweisen. Die Erfindung zeichnet sich dadurch aus, dass die Kordkonstruktion eine offene Kordkonstruktion ist und dass das Verhältnis der Bruchenergie des Kernfilamentes (1) zu der Bruchenergie eines Lagenfilament (2) 1,1 bis 1,5 entspricht.
Abstract:
A high-carbon steel wire has as steel composition: a carbon content ranging from 0.40 weight per cent to 0.85 weight per cent, a silicon content ranging from 1.0 weight per cent to 2.0 weight per cent, a manganese content ranging from 0.40 weight per cent to 1.0 weight per cent, and a chromium content ranging from 0.0 weight per cent to 1.0 weight per cent. The remainder is iron. This steel wire has as metallurgical structure a volume percentage of retained austenite ranging from 4 per cent to 20 per cent, while the remainder is tempered primary martensite and untempered secondary martensite. The steel wire is obtained by partitioning after quenching.
Abstract:
Tire (100) comprising at least one structural element including at least one metal cord comprising a plurality of elementary metal wires stranded together, each elementary metal wire being coated with at least one first metal coating layer, said metal cord being coated with at least one second metal coating layer, wherein said at least one second metal coating layer has a nominal thickness higher than or equal to 30 nm, preferably of from 50 nm to 120 nm, more preferably of from 70 nm to 100 nm.
Abstract:
Die Erfindung bezieht sich auf temperaturbeständiges, elastisches Strangelement (10), insbesondere in Form eines Profilbandes(11), einer Kordel, einer Litze oder einer Rundschnur. Das Strangelement (10) besitzt für erhöhte Anforderungen im Bereich Automotive insbesondere eine Dauerelastizität in einem weiten Temperaturbereich von -40°C bis 120°C. Ein solches Strangelement (10) umfasst mindestens einen Mantel (20), der eine in Längsrichtung des Strangelements (10) verlaufende strangförmige Seele (30) aus Silikonmaterial umgibt, wobei vorzugsweise ein oder mehrere textile Lagen den Mantel (20) bilden und die einzelnen Lagen aus einem Geflecht, einem Gewebe (22) oder einem Gewirk bestehen und diese Lagen die Seele (30) in Längsrichtung vollständig umgeben ( Fig.1a ).
Abstract:
Lineares Zugkraftübertragungselement, insbesondere Draht bzw. Kombinationen von Drähten, wie Bündel, Litzen und Seile, wobei das Linearelement aus einem austenitischen Manganstahl mit einem Mangan-Gehalt > 10 Gewichtsprozenten besteht, und optional Si: 0,2-1,5%, Cr: ≤ 22%, Ni: ≤ 10%, N: ≤ 1,2%, Mo: ≤ 3% enthält. Der Stahl hat eine Festigkeit von mehr als 2200 N/mm 2 bei einem Durchmesser zwischen 1 und 5 mm. Verwendung und Herstellungsverfahren sind offenbart.