Abstract:
Le procédé permet la fabrication d'au moins des premier et deuxième assemblages (26, 28) de M1 éléments filaires et M2 éléments filaires, au moins l'un des premier et deuxième assemblages (26, 28) comprenant plusieurs des éléments filaires (14) enroulés ensemble en hélice. Le procédé comprend une étape d'assemblage de M éléments filaires (14) ensemble en une couche des M éléments filaires (14) autour d'un noyau transitoire (16) pour former un assemblage transitoire (22), et une étape de fractionnement de l'assemblage transitoire (22) en au moins les premier et deuxième assemblages (26, 28) de M1 éléments filaires et M2 éléments filaires.
Abstract:
Braided chemical fiber cable in which at least one electrical conductor is included, characterized in that the cable together with the conductor included therein is thermally stretched.
Abstract:
The invention relates to a combined cable having a core cable made of high-strength plastic fibers present as a twisted monofilament bundle or a plurality of twisted monofilament bundles, and having an external layer of steel wire strands, characterized in that the monofilament bundle or bundles is or are stretched to reduce the diameter and held in a cladding, particularly braided cladding, in this state. The strain of the core cable under load is thus reduced, so that the load distribution between the steel cross-section and the plastic cross-section of the cable is improved. In the same sense, in reverse, in order to have the strain behavior of the strand layer approach that of the core cable, the cable has an intermediate layer made of an elastic plastic, in which the steel wire strands are pressed at a distance from each other, such that the external layer stretches under load and contracts radially.
Abstract:
An elongation cord (10) adapted for the reinforcement of elastorner structures has a polymer core (12) and three to nine strands (14) twisted around the core with a cord twisting step in a cord twisting direction. At least one of the strands (14) has a first group (16) of filaments (17, 18) and a second group (20) of filaments (21, 22). The first group (16) of filaments (17, 18) is twisted with a first twisting step in a first twisting direction and the second group (20) of filaments (21, 22) is twisted with a second twisting step in a second twisting direction. The first twisting step is different from the second twisting step or the first twisting direction is different from the second twisting direction, or both. The first twisting direction is equal to the cord twisting direction and the first twisting step is equal to the cord twisting step.
Abstract:
La présente invention concerne des câbles hybrides à couches dont certains sont utilisables pour renforcer au moins une nappe sommet de protection de pneumatiques poids-lourd ou génie civil, et d'autres pour renforcer des bourrelets de pneumatique pour véhicules légers à moteur, tels que des motocyclettes. L'invention concerne également un tissu composite utilisable comme nappe de sommet de protection de tels pneumatiques poids-lourd ou génie civil, une tringle destinée à renforcer ces bourrelets de pneumatique et les pneumatiques précités. Un câble hybride à couches (C) selon l'invention comporte une couche interne (C i ) non métallique et une couche externe (C e ) insaturée comportant des torons (T) qui sont chacun au moins en partie métalliques et qui sont enroulés en hélice sur ladite couche interne, et ce câble présente un allongement relatif à la rupture At, mesuré en traction selon la norme ISO 6892 de 1984, qui est supérieur à 7 %. Selon un autre aspect de l'invention, cette couche interne est constituée d'au moins un matériau présentant un allongement relatif à la rupture Ar à 20° C qui est supérieur à 6 %.
Abstract:
A steel cord (10) particularly adapted for reinforcement of a protection ply in a tire has under compression in rubber a deformation Wk at instability of at least 3 % and is stress-relieved so that its total elongation at rupture in rubber exceeds 3.5 %. The steel cord (10) comprises steel filaments (12) having a pearlitic structure.
Abstract:
A steel cord (114) for the reinforcement of rubber products comprises strength elements (100, 132) and has length, a longitudinal central axis (112) and a cord pitch. Each of the elements (100) has a projection on a plane YZ perpendicular to the longitudinal central axis (112). At least one of these projections takes the form of a curve with a radius of curvature which alternates between a maximum and minimum. The curve further has a center of curvature. The radius of curvature and the center of curvature lie inside the curve so that a convex curve is obtained. The cord (114) is further characterized by one or both of the following features: (i) the distance between two minimum radii of curvature of said curve measured along the longitudinal central axis (112) is different from half the cord pitch; or (ii) if all of said elements (100) provide a convex curve, at least one of said convex curves substantially differs from another convex curve. The steel cord (114) allows full rubber penetration despite low values of cord diameter and part load elongation (PLE).
Abstract:
The invention relates to a method for manufacturing a multi-strand cable (46) of 1xN structure comprising a single layer (48) of N helically wound strands (50). Each strand (50) comprises an inner layer (52) of M inner wires (54) and an outer layer (56) of P outer wires (58). The method comprises: - a step of individually assembling each of the N strands (50) during which, and in chronological order: - the M inner wires (54) are wound, - the P outer wires (58) are wound, and - the M inner wires (54) and P outer wires (58) are elongated such that the structural elongation associated with the P outer wires (58) of each strand (50) is 0.05% or higher, - a step of collectively assembling the N strands (50) during which the N strands (50) are wound together to form the cable (46).
Abstract:
A linear member for medical use having stretchability and flexibility while maintaining sufficient strength is developed. The linear member for medical use includes: an inner helical body including a plurality of helically wound wires, the inner helical body including a space portion inside, gap portions being provided in an axial direction between each wire; and an outer helical body provided outside of the inner helical body including a plurality of wires helically wound in such a manner to form a layer along an axis of the helical body and a helical direction of the outer helical body is opposite to that of the inner helical body with gap portions being provided between each of the wires, the outer helical body being disposed to provide a multilayer structure. Consequently, a linear member for medical use maintaining stretchability and flexibility while having strength that enables application of sufficient fastening force, which prevents a bone from being damaged, can be provided.
Abstract:
A linear member for medical use having stretchability and flexibility while maintaining sufficient strength is developed. The linear member for medical use includes: an inner helical body including a plurality of helically wound wires, the inner helical body including a space portion inside, gap portions being provided in an axial direction between each wire; and an outer helical body provided outside of the inner helical body including a plurality of wires helically wound in such a manner to form a layer along an axis of the helical body and a helical direction of the outer helical body is opposite to that of the inner helical body with gap portions being provided between each of the wires, the outer helical body being disposed to provide a multilayer structure. Consequently, a linear member for medical use maintaining stretchability and flexibility while having strength that enables application of sufficient fastening force, which prevents a bone from being damaged, can be provided.