Abstract:
A powder coating composition for PC strand coating which, when used for the coating of a PC strand, can advantageously form a coating film having an even thickness at low cost without causing uneven thickness or stringness is disclosed. The powder coating composition of this invention for PC strand coating is characterized by having a melt viscosity of 3,000-15,000 poise.
Abstract:
A rubber-steel cord composite is provided having nonlinear physical properties even in a rubber characterized by incompressive properties after vulcanization, and hence the rubber-steel cord composite can show low rigidity and flexible properties in a low-strain region and, on the other hand, can show high rigidity in a high-strain region. The rubber-steel cord composite is provided by bundling steel linear objects 1 subjected to spiral shape forming at substantially identical pitches in an approximately identical phase without twisting, the steel cord being embedded in rubber.
Abstract:
An improved rope is formed from high tenacity fibers, preferably a blend of high tenacity polyethylene fibers with aramid fibers and/or liquid crystal copolyester fibers. The fibers and/or the rope are coated with a composition comprising an amino functional silicone resin and a neutralized low molecular weight polyethylene. The ropes are useful in marine applications, such as in deep sea lifting, and have improved cyclic bend over sheave fatigue resistance.
Abstract:
An improved rope is formed from high tenacity polyolefin fibers, such as extended chain polyethylene fibers. The fibers and/or the rope are coated with a composition comprising an amino functional silicone resin and a neutralized low molecular weight polyethylene. The ropes are useful in marine applications, such as in deep sea lifting. The ropes have improved cyclic bend over sheave fatigue resistance.
Abstract:
A steel cord-rubber composite 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, and the coating layer includes an inner coating layer 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 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:
A steel cord for a tire which increases a corrosion resistance and durability and improves the energy efficiency during curing of the tire and a radial tire using the same. This steel cord has an m+n twist structure comprising a core containing m pieces of wires and a sheath containing n pieces of wires, in which a rubber compound or an elastomer compound is filled into a space between the core and the sheath. Otherwise, the steel cord has a 1×N twist structure containing N pieces of wires, in which a rubber compound or an elastomer compound is filled into a space at a cord center surrounded by the N pieces of wires.
Abstract:
The strand comprises a group of twisted metal wires, a plastic sheath and a pliant filling compound which fills internal interstices between the twisted wires of the group and a peripheral interstice lying between the periphery of the group and the inner face of the sheath. This peripheral interstice has, in a cross section of the strand, an area of between P×emin and 0.6×S2, where P is the external perimeter of the group of wires, emin=0.05 mm and S2 is the cumulative area of the gaps lying between the periphery of the group and the smallest circle within which the group is inscribed.
Abstract:
A method for producing a cable or cable element from individual elements is provided. The method comprises heating the individual elements before or during a stranding process until they are at least close to plastification and cooling the individual elements to a solidification temperature of a plastic. A cable or cable element comprising individual elements that are twisted together to form the cable is also disclosed. The individual elements are heated either before or during a stranding process until they are at least close to plastification, and are subsequently cooled to a solidification temperature of the plastic until they leave a stranding machine. A stranding device for the production of a cable or cable element from individual elements is also disclosed. The stranding device comprises a heating device which acts on the individual elements and a cooling device located downstream of the heating device in a direction of processing.
Abstract:
A reinforcement for a building works structure comprising an assembly of solid wires. The wires are mutually parallel to form a bundle and the reinforcement comprises a sheath made of plastic material enclosing the bundle and providing it with cohesion.
Abstract:
A steel cord for a tire which increases a corrosion resistance and durability and improves the energy efficiency during curing of the tire and a radial tire using the same. This steel cord has an mnulln twist structure comprising a core containing m pieces of wires and a sheath containing n pieces of wires, in which a rubber compound or an elastomer compound is filled into a space between the core and the sheath. Otherwise, the steel cord has a 1nullN twist structure containing N pieces of wires, in which a rubber compound or an elastomer compound is filled into a space at a cord center surrounded by the N pieces of wires.