| 摘要 |
A cable saw is provided to prevent disconnection of a wire due to the change of the tension load by stranding several strands of wires. A cable saw(45) is comprised of two to seven strands of wires(40). The two to seven strands of wires are stranded by a strander. The tensile strength of the wire is 3000 to 4500 Mpa. The diameter of the wire is 0.30 to 0.05 mmPhi. The twist pitch of the stranded wire satisfies the relational expression of 3 x n x d <= P <= 20 x n x d. The n is the number of wires. The d is the diameter of the wire. The P is the twist pitch of the cable.
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