Abstract:
The invention relates to a braided rope for bend-over-sheave applications consisting essentially of n braided primary strands being made of polymeric filaments, which rope has an oblong cross-section with aspect ratio in the range 1.2 - 4.0. Such a rope shows markedly improved service life performance in cyclic bend-over-sheave applications. The invention also relates to the use of a braided rope according to the invention as a load-bearing member in bend-over-sheave applications; and to a system comprising such a rope and at least one sheave with a groove, the dimensions of which groove are adapted to the rope dimensions.
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:
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 radial tyre which comprises a carcass (6) having a ply of cords arranged at an angle of 75 to 90 degrees with respect to the tyre equator, and a belt (7) disposed radially outside the carcass (6) and comprising plural plies (7a, 7b) of parallel cords (9) laid at an inclination angle of not more than 35 degrees to the tyre equator, wherein the belt cord (9) is composed of at least one steel strand (10) and at least one organic strand (NF) which are twisted together, and the elongation of the cord when loaded by 5kg load is not less than 2% and the elongation of the cord when loaded by 20kg load is not more than 4%.
Abstract:
본 발명은 중합체 필라멘트로 제조된 n 편조된 주 스트랜드로 주로 이루어진 벤드-오버-시브 적용예를 위한 편조된 로프에 관한 것이고, 로프는 1.2 내지 4.0 범위의 종횡비를 갖는 장원형 단면을 구비한다. 그러한 로프는 순환 벤드-오버-시브 적용예에 있어서 현저하게 개선된 유효 수명 성능을 나타낸다. 본 발명은 또한 벤드-오버-시브 적용예에 있어서 하중 지지 부재로서의 본 발명에 따른 편조된 로프의 용도와, 그러한 로프 및 로프 치수에 적합한 치수의 그루브를 갖는 적어도 하나의 시브를 포함하는 시스템에 관한 것이다.
Abstract:
A PC steel stranded wire that has a strength greater than in the prior art, being suitable for practical application; and a concrete structure utilizing the same. The high-strength PC steel stranded wire that has a strength greater than in the prior art, being suitable for practical application, can be manufactured by fabricating of a 7-wire stranded structure through stranding of one center wire together with six side wires and by regulating thereof so as to realize an outside diameter of 15.0 to 16.1 mm, a total cross section area of 135 mm2 or more and a load at 0.2% permanent elongation, or load at 0.1% permanent elongation, of 266 kN or greater.
Abstract:
Une installation de fabrication d'un assemblage (A) d'éléments filaires (14) enroulés ensemble en hélice comprend : - des moyens de retordage (16) d'au moins des premier et deuxième éléments filaires (14) agencés de façon à retordre les premier et deuxième éléments filaires (14) séparément l'un de l'autre, - des moyens de préformation (18) en hélice d'au moins les premier et deuxième éléments filaires retordus (14) agencés en aval des moyens de retordage et de façon à préformer les premier et deuxième éléments filaires retordus (14) séparément l'un de l'autre, - des moyens d'assemblage (20) d'au moins les premier et deuxième éléments filaires (14) retordus et préformés agencés en aval des moyens de préformation et de façon à former l'assemblage (A) d'éléments filaires (14).
Abstract:
Le procédé permet la fabrication d'un câble multitorons (46) de structure 1xN comprenant une unique couche (48) de N torons (50) enroulés en hélice. Chaque toron (50) comprend une couche interne (52) de M fils internes (54) et une couche externe (56) de P fils externes (58). Le procédé comprend: - une étape d'assemblage individuel de chacun des N torons (50) au cours de laquelle, et dans l'ordre chronologique: - on enroule les M fils internes (54), - on enroule les P fils externes (58), et - on allonge les M fils internes et les P fils externes (58) de sorte que l'allongement structurel associé aux P fils externes (58) de chaque toron (50) est supérieur ou égal à 0,05%, - une étape d'assemblage collectif des N torons (50) au cours de laquelle on enroule les N torons (50) pour former le câble (46).