摘要:
Metal cable having two layers of construction 4+N comprising an inner layer C1 of 4 wires of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer C2 of N wires of diameter d2 wound together in a helix at a pitch p2, characterized in that said cable furthermore has the following characteristics (d1, d2, p1 and p2 in mm): 0.25
摘要:
Metal cable having two layers of construction 4+N comprising an inner layer C1 of 4 wires of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer C2 of N wires of diameter d2 wound together in a helix at a pitch p2, characterised in that said cable furthermore has the following characteristics (d1, d2, p1 and p2 in mm): 0.25
摘要:
Metal cable having two layers of construction 4+N comprising an inner layer C1 of four wires of diameter d1 wound together in a helix at a pitch p1, this layer C1 itself being surrounded by an outer layer C2 of N wires of diameter d2 wound together in a helix at a pitch p2. The cable has the following characteristics (d1, d2, p1 and p2 in mm): 0.25
摘要:
The present invention concerns hybrid layered cables some of which can be used to reinforce at least one crown protection ply of tyres for heavy vehicles or earthmovers, and others to reinforce the beads of tyres for light motorised vehicles such as motorcycles. The invention also concerns a composite fabric usable as a crown protection ply of such heavy vehicles or earthmovers, and a bead wire designed to reinforce the said beads and the aforesaid tyres. A hybrid layered cable (C) according to the invention comprises a non-metallic internal layer (Ci) and an unsaturated external layer (Ce) comprising strands (T) each of which is at least in part metallic and which are wound in helix around the said internal layer, the said cable having a relative elongation at break At, measured in tension in accordance with the standard ISO 6892 of 1984, which is higher than 7%. According to another aspect of the invention, the said internal layer is composed of at least one material having a relative elongation at break Ar at 20° C. in excess of 6%.
摘要:
A metal cord (C-1) having two layers (Ci, Ce) of 3+N construction, rubberized in situ, comprising an inner layer (Ci) formed from three core wires (10) of diameter d1 wound together in a helix with a pitch p1 and an outer layer (Ce) of N wires (11) N varying from 6 to 12, of diameter d2, which are wound together in a helix with a pitch p2 around the inner layer (Ci), said cord being characterized in that it has the following characteristics (d1, d2, p1 and p2 being in mm): 0.08
摘要:
Metal cord of K×(L+M) construction. K elementary strands assembled in a helix, with pitch PK, each having a cord with L wire inner layer of diameter d1, and M wire outer layer of diameter d2, in a helix with pitch p2 around the inner layer; with (in mm): 0.10
摘要:
A hybrid layered cable for use in tire reinforcement includes a non-metallic internal layer and an unsaturated external layer including 3-12 strands. Each strand is at least partly metallic and is helically wound around the internal layer. Each strand includes at least 3 filaments wound helically together. The cable has a relative elongation at break, measured in tension in accordance with the standard ISO 6892 of 1984, which is higher than 7%.
摘要:
Multistrand metal cable of 4×(4+M) construction, which can especially be used for reinforcing tire belts for industrial vehicles, formed from four elementary strands assembled in a helix with a helix pitch P3, each elementary strand consisting of a two-layer cable of 4+M construction comprising an inner layer C1 formed from four wires of diameter D1, assembled in a helix with a pitch P1, and an unsaturated outer layer C2 of M wires, M being greater than or equal to 8 and smaller than or equal to 11, of diameter D2, these being assembled in a helix with a pitch P2 around the inner layer C1, P1 being smaller than P2, the four wires of the inner layer C1 being wound in a helix in the same twist direction as the M wires of the outer layer C2, and wherein each of the diameters D1 and D2 is greater than or equal to 0.10 mm but less than or equal to 0.50 mm.
摘要:
Metal cord (C-1) having two layers (Ci, Ce) of 3+N construction, rubberized in situ, comprising an inner layer (Ci) formed from three core wires (10) of diameter d1 wound together in a helix with a pitch p1 and an outer layer (Ce) of N wires (11) N varying from 6 to 12, of diameter d2, which are wound together in a helix with a pitch p2 around the inner layer (Ci), wherein said cord has the following characteristics (d1, d2, p1 and p2 are expressed in mm): 0.20
摘要:
Method of manufacturing a metal cable having two layers (Ci, Ce) of construction M+N, comprising an inner layer (Ci) having M wires of diameter d1 wound together in a helix at a pitch p1, M varying from 2 to 4, and an outer layer (Ce) of N wires of diameter d2, wound together in a helix at a pitch p2 around the inner layer (Ci), the method comprising the following steps performed in line: a step of assembling the M core wires by twisting to form the inner layer (Ci) at a point of assembling; downstream of the point of assembling of the M core wires, a step of sheathing the inner layer (Ci) with a diene rubber composition called “filling rubber”, in the raw state; a step of assembling the N wires of the outer layer (Ce) by twisting around the inner layer (Ci) thus sheathed; and a step of twist balancing. Also disclosed is a device for implementing such a method.