Abstract:
A method of fabricating a composite rope structure comprising the following steps. Impregnated yarns comprising fibers within a resin matrix are fabricated at a first location. The impregnated yarns are transported from the first location to a second location. The impregnated yarns are dispensed at the second location. The resin matrix of the dispensed impregnated yarns is cured at the second location to obtain the composite rope structure.
Abstract:
A steel cord (10) adapted for the reinforcement of elastomers comprises: a core steel filament (12) with a core steel filament diameter dc and coated with a polymer (14); six intermediate steel filaments (16) with an intermediate steel filament diameter di smaller than or equal to the core steel filament diameter dc; these intermediate steel filaments (16) are twisted around the core steel filament (12); ten or eleven outer steel filaments (18) with an outer steel filament diameter do smaller than or equal to the intermediate steel filament diameter dI; these outer steel filaments (18) are twisted around the intermediate steel filaments (16), the outer steel filaments (18) are preformed in order to allow rubber penetration inside the core (10). The core steel filament (12), the intermediate steel filaments (16) and the outer steel filaments (18) all have a tensile strength at least 2600 MPa. The cord (10) has an outer diameter D according to following formula: D ≤ dc + 2xdi + 2xdo + 0.1 wherein all diameters are expressed in millimeter (mm).
Abstract:
Compositions and methods for treating metal substrates and/or bonding metal substrates to polymeric materials, such as rubber, are provided. The compositions include at least one substantially hydrolyzed amino silane and at least one substantially hydrolyzed sulfur-containing silane. Optionally, the compositions include a nano-size particulate material. The compositions provide coatings on metal substrates for protecting the metal from corrosion and for adhering rubber-like polymeric compositions to the metal with polymer-to-metal vulcanization conditions less dependent on the coating thickness, and with use of less coating materials.
Abstract:
A steel cord (10) comprises a core with one or more core steel filaments (12) and further comprises a first layer of intermediate steel filaments (14) twisted around the core, and a second layer of second steel filaments (18) twisted around the first layer. At least one of the intermediate steel filaments is individually coated by means of a polymer (16) with a minimum thickness of 0.010 mm. The polymer (16) reduces the fretting between the coated intermediate steel filaments (14) and the other steel filaments and makes the steel cord suitable for reinforcement of carcass plies of a tire.
Abstract:
A steel cord-rubber composite (10) is provided, that has improved initial adhesion property and adhesion property against aging between the steel cord and the rubber composition with improved manufacturing cost efficiency. A steel cord-rubber composition composite includes a coating layer and a steel cord (1), and the coating layer includes an inner coating layer (2) formed of a rubber composition containing a rubber component, a cobalt compound and sulfur and directly covering the steel cord, and an outer coating layer (3) formed of a rubber composition of which contents of cobalt compound and sulfur are smaller than those of the inner coating layer and coating the outer portion of the inner coating layer.
Abstract:
The invention relates to a spiral hex bead (10) and a method of constructing the spiral hex bead (10) with a bead core (12) having a hexagonal cross-sectional shape formed from a single filament of bead core wire (16) continuously wound in at least three layers of successive, superimposed rows (20a, 20b, 20c) each having two or more successive, concentric windings (1-7). The bead core wire (16) has a coating (20) of cured or uncured rubber or elastomeric material. A first annular wrap (14) of bead wrapping wire (26) is helically wound around the bead core (12) in a first direction.
Abstract:
The invention relates to a composite cord (10) for reinforcement of elastomers comprising a core (12) of a high polymer material, a first layer of steel filaments (14) twisted around said core and a second layer of steel filaments (16) twisted around said first layer. The polymer material is present in a sufficient volume to create gaps between adjacent filaments of the first layer and possibly also between the filaments of the second layer. The composite cord is characterised by a decreased fretting of the steel filaments.