Abstract:
The present invention is related to a yarn construction comprising fibres A and at least one indicator fibre, wherein the indicator fibre comprises fibre B and an elemental metal at least partially coating the surface of the fibre B, wherein fibre A and fibre B are dissimilar ultra high molecular weight polyethylene (UHMWPE) fibres. The yarn constructions may be available in different forms, amongst others in ropes, straps, slings, fabrics and synthetic chains.
Abstract:
Process for depositing graphene on the run on the surface (17) of a metallic or metallized continuous reinforcement (R), positioned at the periphery of which is a surface metal layer (Ms) selected from copper, nickel and copper-nickel alloys, said process comprising at least one step of flame spray pyrolysis (FSP), under a reducing atmosphere (13), of a precursor of carbon that generates in the flame at least one carbon-containing gas such as carbon monoxide, which is sprayed on the surface (17) of the reinforcement while running, and decomposes thereon to form one or more layers of graphene at the surface of the surface metal; an additional step of functionalization of the graphene makes it possible to adhere the reinforcement to a polymer matrix such as a rubber matrix.
Abstract:
A hanger wire for contact wires of railway electrical lines may include: first wires including copper or a first alloy of copper; and second wires including a steel core coupled with a layer of copper or a second alloy of copper. An overhead contact line suitable to transmit electric power to a locomotive may include: at least one conductor element connected to a high voltage electric energy distribution network; at least one suspension wire fastened to a series of supporting poles arranged along the overhead contact line; and a plurality of hanger wires connecting the at least one conductor element to the at least one suspension wire. The hanger wires may include: first wires including copper or a first alloy of copper; and second wires including a steel core coupled with a layer of copper or a second alloy of copper.
Abstract:
A strand (20) for a cable bolt (14) comprises a plurality of metallic elongated members (22, 24) twisted together. At least one of the elongated members has a corrosion resistant coating (54) and surface deformation, so as to improve the bodig efficiency and the anchorage of the strand.
Abstract:
A load bearing member includes at least one elongated tension member having at least one wire and a protective coating on the elongated tension member. The protective coating includes a first corrosion inhibitor having an oxide-forming metal, a second corrosion inhibitor having a rare earth metal, and a third corrosion inhibitor having an organic material.
Abstract:
A steel cord used for reinforcing rubber product with an oval cross-section has a structure of m+n, while m is the number of core wires (26) and n is the number of the outer layer wires (22). The core wire (26) is untwisted while m is 1 or the core wires (26) are untwisted and aligned in parallel while m is between 2 and 4, and the outer layer wires (22) are twisted around said core wires (26). The core wires (26) are oval wires and the outer layer wires (22) are round wires. The wires (22, 26) in the steel cord have a carbon content not less than 0.60%.
Abstract:
The invention relates to a metal cable (C-1) with three layers (C1, C2, C3), rubberised on site, comprising a core or first layer (10, C1) with a diameter d 1 , around which are wound together forming a helix with a pitch p 2 , in a second layer (C2), N wires (11) with a diameter d 2 , around which are wound together forming a helix with a pitch p 3 , in a third layer (C3), P wires (12) with a diameter d 3 , said cable being characterised in that it has the following properties (d 1 , d 2 , d 3 , p 2 and p 3 being expressed in mm): - 0.08 1 2 3 1 + d 2 ) 2 3 1 + 2d 2 + d 3 ); every 2 cm of cable length, a rubber composition referred to as "filling rubber" (13) is provided in each of the capillaries (14) located, on the one hand, between the core (C1) and the N wires (11) of the second layer (C2) and, on the other hand, between the N wires (11) of the second layer (C2) and the P wires (12) of the third layer (C3); the ratio of filling rubber (13) in the cable being 10 to 50 mg per gram of cable. The invention relates to a multi-strand cable in which at least one of the strands is a metal cable (C-1) with three layers rubberised on site.
Abstract:
The invention concerns a (metal/rubber) composite comprising a rubber matrix reinforced with a metal body adhering to the rubber matrix via an adhesive intermediate phase; the rubber matrix is based on diene elastomer; the metal is carbon steel whereof the carbon content ranges between 0.35 % and 1.2 %; to constitute the adhesive intermediate phase, the steel carbon is coated with a metal layer bearing aluminium oxides-hydroxides, itself coated with an organosilane film providing, as coupling agent, the bond between the aluminium oxides-hydroxides and the rubber matrix. The invention also concerns articles or semi-finished products made of rubber reinforced with or consisting of said composite, in particular tyres.