Abstract:
A pneumatic tyre (1) comprises a tread reinforcing belt (7) made of metallic cords (10), wherein each of the metallic cords is made up of six to twelve metallic filaments (F) whose diameter (d) is not less than 0.15 mm but less than 0.25 mm, the six to twelve metallic filaments (F) are grouped into a plurality of bunches (B) each including two to four filaments (F), the filaments of each bunch are twisted together at a first twisting pitch (Pf), the bunches (B) are twisted together into the cord at a final twist pitch (Pc) of from 10 to 40 mm, the first twisting pitch (Pf) is more than the final twist pitch (Pc), and the bunches (B) each include at least one waved filament (FA) which is two-dimensionally waved at wave pitches (Pw) in a range of from 5 to 30 times the diameter (d) of the filament and a wave height (h) in a range of from 0.2 to 3.0 times the diameter (d).
Abstract:
REFERIDO A FIBRAS DE AKTA RESISTENCIA QUE CONTIENEN UN RECUBRIMIENTO DE POLIMERO DE SILICONA ENTRECRUZADO, Y CUERDAS ELABORADAS A PARTIR DE LAS MISMAS. LAS FIBRAS SON PREFERIBLEMNETE FIBRAS DE POLIETILENO DE ALTO DESEMPENO. EL RECUBRIMIENTO QUE CONTIENE UN POLIMERO DE SILICONA ENTRECRUZADO SE ELABORA A PARTIR DE UNA COMPOSICION DE RECUBRIMIENTO QUE CONTIENE UN POLIMERO DE SILICONA ENTRECRUZABLE. LA CUERDA MUESTRA UN DESEMPENO MARCADAMENTE MEJORADO DURANTE SU VIDA UTIL EN APLICACIONES DE ENTORCHADO TALES COMO APLICACIONES CICLICAS DE ENTORCHADO ALREDEDOR DE UNA POLEA
Abstract:
A sealed rope (1) comprising an elongated core (3) comprising a thermoplastic material and a multitude of load bearing yarns forming a layer (2) around said core (3), wherein, during manufacturing, in between said yarns voids are initially present, wherein at least part of said voids are at least partly filled in the final sealed rope (1) by said thermoplastic material from said core (3). Moreover, the invention is directed to a method of producing the rope and use of the rope in for instance fishery or mining. The rope shows reduced internal wear compared to a rope comprising said voids.