Abstract:
A cord for rubber reinforcement of the present invention includes a core strand including a plurality of strands (A), and a plurality of strands (B) disposed around the core strand. In the core strand, the plurality of strands (A) are finally twisted, and each of the plurality of strands (A) is formed of a plurality of reinforcing fibers (A) that are primarily twisted. Each of the plurality of strands (B) is formed of a plurality of reinforcing fibers (B) that are primarily twisted, and the plurality of strands (B) are finally twisted to be disposed around the core strand. The direction of final twist of the plurality of strands (B) is the same as the direction of primary twist in at least one strand (B) selected from the plurality of strands (B). The number of primary twists in the strand (B) is greater than the number of primary twists in the strand (A), and/or the number of final twists of the strands (B) is greater than the number of final twists of the strands (A).
Abstract:
An annular metal cord and an endless metal belt are provided which have superior breaking strength and which are easy to be produced.The annular metal cord includes an annular core portion 3 and an outer layer portion 4. The annular core portion 3 is formed by connecting together both ends of a first strand material 1 which is made up of six twisted first metal filaments 5. The outer layer portion 4 is formed by winding spirally a second strand material 2 which is made up of six twisted second metal filaments 6 around the annular core portion 3. The second strand material 2 is wound at a predetermined winding angle relative to a center axis of the annular core portion 3, and a winding initiating end portion and a winding terminating end portion thereof are connected together. Since it is not that six second strand materials 2 are not wound but that the second strand material 2 is wound six rounds, there only has to be the single second strand material 2, and there is only one connecting portion. As a result, the breaking strength of the annular metal cord can be made large, and the production thereof can be facilitated.
Abstract:
A steel cord (10) for the reinforcement of timing belts or transmission belts comprises only two to five strands (12) tightly twisted with each other in a first direction at a cord twisting pitch. Each of said strands (12) comprises only two to seven steel filaments (14) tightly twisted with each other in this first direction at a strand twisting pitch. The steel filaments (14) have a diameter ranging from 0.03 to 0.40 mm. The ratio strand twisting pitch to filament diameter is greater than 30, the ratio cord twisting pitch to filament diameter is greater than 30, and the ratio cord twisting pitch to strand twisting pitch is greater than 1. Such a steel cord has an acceptable low torsion moment under axial loads.
Abstract:
A composite glass fiber cable is disclosed having a negative linear coefficient of thermal expansion which is controllable by variation of the twist of helically plied glass roving to substantially zero change in length over a wide variation in environmental temperatures under varying load conditions.
Abstract:
본 발명은 탄성체가 코팅된 다중 스트랜드(strand) 강철 와이어 케이블을 포함하는 엘리베이터 로프를 청구한다. 이러한 케이블 스트랜드들은 드러난 상태의 케이블 직경(D)의 적어도 6.5배의 직경의 꼬임(lay)-길이를 갖는다. 케이블은 탄성체 재킷(jacket)으로 추가로 코팅되며, 이는 15×D+15 N/mm 이상의 당기는(pull-out) 힘으로 스트랜드들에 접착된다. 이러한 엘리베이터 로프의 장점들에는 특히 그 신장의 제한, 직경 감소 및 피로수명 개선이 있다. 엘리베이터, 로프, 탄성체, 스트랜드, 케이블, 피로 수명
Abstract:
연선 복합 케이블은 중심 세로축을 정의하는 단일 와이어(2), 단일 와이어 둘레에 제1 꼬임 방향으로 중심 세로축에 대해 정의된 제1 꼬임 각도로 나선형으로 연선 가공되고 제1 꼬임 길이를 가지는 제1 복수의 복합 와이어(4), 및 제1 복수의 복합 와이어 둘레에 제1 꼬임 방향으로 중심 세로축에 대해 정의된 제2 꼬임 각도로 나선형으로 연선 가공되고 제2 꼬임 길이를 가지는 제2 복수의 복합 와이어(6)를 포함하며, 제1 꼬임 각도와 제2 꼬임 각도 사이의 상대 차가 약 4˚ 이하이다. 연선 복합 케이블이 복합 와이어 둘레에 연선 가공된 복수의 연성 와이어를 포함하는 가공 송전 케이블 등의 최종 물품에 나중에 포함되는 중간 물품으로서 사용될 수 있다. 연선 복합 케이블을 제조 및 사용하는 방법도 기술되어 있다.
Abstract:
L'invention a pour objet un câble multi-torons (60)à deux couches présentant un module EC tel que 50GPa≤ EC ≤ 160GPa. Le câble comprend: -une couche interne (CI) du câble constituée de J>1 torons internes(TI) enroulés en hélice présentant un module EI, chaque toron interne (TI) comprenant: une couche interne (C1) constituée de Q≥1 fils internes(F1), et une couche externe (C2) constituée de N>1 fils externes (F2) enroulés autour de la couche interne (C1), - une couche externe (CE) du câble constituée de L>1 torons externes (TE) enroulés autour de la couche interne (CI) du câble, chaque toron externe (TE) comprenant: une couche interne (C1') constituée de Q'≥1 fils internes(F1'), une couche externe (C2') constituée de N'>1fils externes (F2') enroulés autour de la couche interne (C1').
Abstract:
The invention relates to a multi-strand metal cord (C-1) having two layers (Ci, Ce) with a J+K construction, in particular for reinforcing the tyres of industrial vehicles, consisting of a core comprising J strand(s) forming an inner layer (Ci), J varying from 1 to 4, K outer strands being helically wound around said core at a pitch P? of 20 to 70 mm, forming an outer layer (Ce) around said inner layer (Ci), each outer strand: comprising a cord (10) with two layers (C1, C2) with an L+M construction, rubberised in situ, comprising an inner layer (C1) consisting of L wires (11) with a diameter d1, L varying from 1 to 4, and an outer layer (C2) of M wires (12), M being no lower than 5, having a diameter d2 helically wound together at a pitch p2 around the inner layer (C1); and having the following characteristics (d1, d2 and p2 being given in mm): - 0.10 1 2 2
Abstract:
Câble métallique multitorons (C-1) à deux couches (Ci, Ce) de construction J+K, utilisable notamment pour le renforcement de pneumatiques pour véhicules industriels, constitué d'une âme comportant J toron(s) formant une couche interne (Ci), J variant de 1 à 4, âme autour de laquelle sont enroulés en hélice, selon un pas d' hélice P κ compris entre 20 et 70 mm, K torons externes formant une couche externe (Ce) autour de ladite couche interne (Ci), chaque toron externe : o consistant en un câble (10) à deux couches (C1, C2) de construction L+M, gommé in situ, comportant une couche interne (Cl) constituée de L fils (11) de diamètre di, L variant de là 4, et une couche externe (C2) de M fils (12), M étant égal ou supérieur à 5, de diamètre d 2 enroulés ensemble en hélice selon un pas p 2 autour de la couche interne (C1); et o présentant les caractéristiques suivantes (d 1 , d 2 et p 2 étant exprimés en mm) : - 0,10 1 2 2 κ , la gomme de remplissage (14) est présente dans chacun des capillaires (15) délimités par les L fils (11) de la couche interne (C1) et les M fils (12) de la couche externe (C2), ainsi que, lorsque L est égal à 3 ou 4, dans le canal central (13) délimité par les L fils (11) de la couche interne (C1); le taux de gomme de remplissage dans ledit toron externe est compris entre 5 et 40 mg par g de toron.