Multilayer metal fiber yarn
AssigneeNV Bekaert SA
InventorsLisa Le Percq, Stefaan De Bondt, Henk Troost
Life of this patent
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Abstract
A new metal fiber yarn (1) and methods for obtaining such a yarn are provided. The metal fiber yarn comprises at least 9 bundles (8) of continuous metal fibers. Each of the bundles comprises at least 30 metal fibers (7). The at least 9 bundles are arranged in at least 2 layers of continuous metal fiber bundles as seen over a transverse cross section through the metal fiber yarn. This new metal fiber yarn has an increased flexlife and strength.
Claims15
A metal fiber yarn (1) comprising at least 9 bundles (8) of continuous metal fibers (7), wherein each of said continuous metal fiber bundles (8) comprising at least 30 continuous metal fibers (7) and said continuous metal fiber bundles (8) are twisted together with a predetermined number of torsions per meter to form a metal fiber yarn, characterised in that said at least 9 bundles (8) of continuous metal fibers are arranged in at least 2 layers over a transverse cross section of said metal fiber yarn.
A method for producing a metal fiber yarn (1) comprising following steps:
- providing at least 9 continuous metal fiber bundles (8), each of said continuous metal fiber bundles (8) comprising at least 30 continuous metal fibers (7)
- twisting together part of said metal fiber bundles with a predetermined number of torsions per meter thereby obtaining a first layer,
- twisting the remainder of said metal fiber bundles around said first layer with a predetermined number of torsions per meter in at least one next layer.
A method for producing a metal fiber yarn (1) comprising following steps:
- providing at least 9 continuous metal fiber bundles, each of said continuous metal fiber bundles (8) comprising at least 30 continuous metal fibers (7)
- twisting together all of said metal fiber bundles (8) with a predetermined number of torsions per meter thereby obtaining a metal fiber yarn (1) wherein said at least 9 bundles (8) of continuous metal fibers are arranged in at least 2 layers over a transverse cross section of said metal fiber yarn (1).
A method for producing a metal fiber yarn (1) comprising following steps:
- providing at least 9 composite wires drawn till final diameter, each of said composite wires comprising at least 30 continuous metal fibers (7)
- twisting together part of said composite wires with a predetermined number of torsions per meter thereby obtaining a first layer,
- twisting the remainder of said composite wires around said first layer with a predetermined number of torsions per meter, in at least one next layer, thereby obtaining a composite wire construction,
- leaching said composite wire construction in appropriate acid, thereby obtaining the metal fiber yarn.
A method for producing a metal fiber yarn comprising following steps:
- providing at least 9 composite wires drawn till final diameter, each of said composite wires comprising at least 30 continuous metal fibers (7),
- twisting together all of said composite wires with a predetermined number of torsions per meter, thereby obtaining a composite wire construction,
- leaching said composite wire construction in appropriate acid, thereby obtaining the metal fiber yarn.
Dependencies are inferred from the claim text.