1*d1+6+12*d2+7*8*d2 all-steel cord
A technology of steel cords and steel wires, applied in the field of 1×d1+6+12×d2+7×8×d2 steel cords, can solve the problem of small gap between outer strands, high air content in the cords, and steel cords. Insufficient strength and other problems to achieve the effect of improving corrosion resistance and improving service life
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Embodiment 1
[0023] In the present embodiment, the diameter d1 of the steel wire of the first layer of steel wire 3 of the core strand steel wire 1 must be at least greater than the steel wire of the second layer of steel wire 4 of the core strand and the diameter of the third layer of steel wire 5 of the core strand. The diameter of the layer steel wire 4 and the diameter of the third layer of steel wire 5 of the core strand are 0.015mm, the second layer of steel wire 4 of the core strand in the core strand steel wire 1, the third layer of steel wire 5 of the core strand and the outer layer of strand steel wire 2 The diameter of each layer of steel wire is 0.20mm. The twist length of the first layer of steel wire 3 of the core strand steel wire 1 is 6.3mm, the twist length of the third layer of steel wire 5 of the core strand is 12.5mm, and the outer layer of the strand steel wire 2 The twist length of the second layer of steel wires of the layer strands is 12.5mm. The core strand steel ...
Embodiment 2
[0028] Embodiment 2: 1, core strand steel wire D1; 2, outer strand strand steel wire D2; 3, core strand first layer steel wire A1; 4, core strand second layer steel wire A2; 5, core strand third layer Steel wire A3; 6. Steel wire a1 of the first layer of outer strands; 7. Steel wire a2 of the second layer of outer strands.
[0029] The diameter d1 of the core strand first layer steel wire 3 in the core strand steel wire 1 in the present embodiment must at least be greater than the diameter d2 of the core strand second layer steel wire 4 and the core strand third layer steel wire 5, the second layer steel wire 4 and The diameter of the third layer of steel wire 5 of the core strand is 0.015mm, and the diameter of each layer of steel wire in the core strand steel wire 1, the second layer of steel wire 4 of the core strand, the third layer of steel wire 5 of the core strand and the outer layer strand steel wire 2 is equal to is 0.20mm. The lay distance of core strand steel wire ...
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