Abstract:
Helically stranded thermoplastic polymer composite cable (10) includes a single wire (2) defining a center longitudinal axis, a first multiplicity of thermoplastic polymer composite wire (4) helically stranded around the single wire (2), and a second multiplicity of polymer composite wire (6) helically stranded around the first multiplicity of thermoplastic polymer composite wire (4). The helically stranded thermoplastic polymer composite cable (10) may be used as intermediate articles that are later incorporated into final articles, such as electrical power transmission cables, including underwater tethers and underwater umbilicals. Methods of making and using the helically stranded thermoplastic polymer composite cables are also described.
Abstract:
The invention relates to a steel cord (C-1) with three layers (C1, C2, C3) and a 3+M+N structure, that is rubberized in situ and comprises: a first layer or central layer (C1) formed by two wires (10) of diameter d1 assembled in a helix at a pitch p1; a second layer (C2) formed by M wires (11) of diameter d2, which are wound around the central layer (C1) in a helix at a pitch p2; and a third layer (C3) formed by N wires (12) of diameter d3, which are wound around the second layer in a helix at a pitch p3. The cord is characterised in that it has the following characteristics: (d1, d2, d3, p1, p2 and p3 being expressed in mm): - 0.08 = d1 = 0.5; - 0.08 = d2 = 0.5; - 0.08 = d3 = 0.5; - 3 1 2 3
Abstract:
The present invention provides structure of steel cord in heavy duty tires, in which the adhesive strength between filament and rubber, and penetrating property of rubber are improved by making the twist direction of core and strand different in the steel cord comprising core and strand filament, and by making the pitch or the twist period of core and strand different. In particular, this structure is applied to steel cord of 3+8*d(HT) which is used in heavy duty tires. In this application, twist direction of core filament is in the S direction and twist direction of strand filament is in the Z direction, and the ratio of the pitch of core filament (CP) and the pitch of strand filament (SP) is between 0.50 and 0.94.
Abstract:
PROBLEM TO BE SOLVED: To provide a pneumatic radial tire for which the durability of the carcass layer is increased without reducing the steering stability in a tire for which a steel cord having a 3+9+15 structure is used as the carcass cord. SOLUTION: For this pneumatic radial tire 1, the steel cord S having the 3+9+15 structure is used as the carcass cord. In the pneumatic radial tire 1, the twisting length of respective layers C, P and Q which constitute the steel cord S is set to be 15 to 40 mm. At the same time, steel filaments S1, S2 and S3 of respective layers C, P and Q are respectively set in such a manner that (1) the diameter of a bare wire may become 0.15 to 0.26 mm, (2) a ratio between the bare wire diameter of the core layer C and the bare wire diameter of the first sheath layer P may become 1.10 to 1.70, and (3) a ratio between the bare wire diameter of the first sheath layer P and the bare wire diameter of a second sheath layer Q may become 1.00 to 1.20. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
An armored optical cable and process of manufacturing is described. The armored optical cable exhibits minimal inelastic elongation in response to tension at elevated temperatures and is capable of withstanding harsh ambient conditions. The armored optical cable is fabricated in a unitary operation with a central bundle of one handedness surrounded by at least one outer armor layer of opposite handedness substantially torque balanced to the handedness of the central bundle.
Abstract:
A wire rope includes a multi-wire coil (10) formed by twisting several metal wires (11) together forming a coil layer of metal wires (11) with gaps (d1, d2)between each adjacent wire (11). In the wire rope, the gaps (d1, d2) are located between the metal wires (11) along an axis of the multi-wire coil (10). Preferably, the gaps (d1, d2) between the metal wires (11) include a first gap (d1) and a second gap (d2) that differs in width.
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 κ 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 d 1 , L varying from 1 to 4, and an outer layer (C2) of M wires (12), M being no lower than 5, having a diameter d 2 helically wound together at a pitch p 2 around the inner layer (C1); and having the following characteristics (d 1 , d 2 and p 2 being given in mm): - 0.10 1 2 2 κ , the filling rubber (14) is present in each of the capillaries (15) delimited by the L wires (11) of the inner layer (C1) and the M wires (12) of the outer layer (C2) and, when L is equal to 3 or 4, the rubber is present in the central channel (13) delimited by the L wires (11) of the inner layer (C1); and the level of filling rubber in said outer strand is 5 to 40 mg/g of strand.