JP6760824B2 - High strength wire rope - Google Patents

Description

The present invention relates to high-strength wire rope.

Conventionally, wire ropes used for cargo handling and transportation by cranes and other construction machines generally have fiber cores or wire rope-like rope cores (IWRC (Independent Wire) specified by JISG3525 (wire rope: 2013)). A Fi-type or WS-type 6-strand rope containing Rope Core)) is used. The wire rope used for such applications is required to have high strength (for example, tensile strength) while having a small diameter in order to reduce the size of the equipment and thereby reduce the weight and energy of the equipment. Ru.

As the above wire rope, for example, Patent Document 1 shows a 6-strand wire rope 100 having a structure of IWRC6 × Fi (29) as shown in FIG. The wire rope 100 has an IWRC 101 and a plurality of (six in FIG. 9) side strands 102 twisted around it.

The IWRC101 has seven rope core strands 101b. Each rope core strand 101b is composed of a plurality of strands 101a spirally twisted together. The IWRC 101 is formed by twisting the remaining six rope core strands 101b around one of the seven rope core strands 101b as the center. The side strands 102 are formed by twisting a plurality of strands 102a, respectively.

JP-A-2007-77555 (see FIG. 1)

However, in such a conventional wire rope 100, a large gap is formed between the IWRC 101, which is a wire rope-shaped rope core, and the plurality of side strands 102, so that the filling rate of the strands inside the wire rope 100 ( That is, the ratio of the cross-sectional area of the wire rope to the cross-sectional area of the wire rope) cannot be increased. Therefore, the requirement of having high strength while having a small diameter cannot be satisfied.

The above gap can be reduced by thinning the side strand 102. However, when a plurality of thin side strands 102 are twisted around the IWRC 101, the shape is likely to be lost. As a result, both the filling rate of the wire and the strength of the wire rope cannot be improved.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a high-strength wire rope capable of obtaining a thin and high strength by increasing the filling rate of the wire.

To solve the above problems, the high-strength wire rope of the present invention has a single strand core formed by twisting a plurality of strands and a plurality of strands each twisted to form the rope core. A plurality of intermediate strands twisted around the structure to form an intermediate layer, and a plurality of intermediate strands each formed by twisting a plurality of strands and twisted around the intermediate layer formed by the plurality of intermediate strands. The outer layer strands and the plurality of intermediate strands have a diameter smaller than the diameter of the strand cores and come into contact with the peripheral surface of the strand cores, and the intermediate strands are connected to each other in the circumferential direction of the strand cores. Are arranged in close contact with each other, and the plurality of outer layer strands have a diameter smaller than the diameter of the strand core and larger than the intermediate strand, and come into contact with the intermediate strand around the intermediate layer. It is characterized in that the outer layer strands are arranged in close contact with each other in the circumferential direction.

In such a configuration, a plurality of outer layer strands are arranged in close contact with each other in the circumferential direction of the strand core, and the outer layer strand and the intermediate strand thinner than the strand core are densely packed in the gap between the outer layer strand and the strand core. The filling rate of the wire is obtained. This allows the entire wire rope to be loaded. As a result, the filling rate of the wire is improved, and it becomes possible to obtain a high-strength wire rope that is thin and has high strength.

The plurality of outer layer strands and the plurality of intermediate strands have the same number, and each of the intermediate strands is in a state of being inserted into a valley formed by the two adjacent outer layer strands. It is preferably in contact with the outer strands.

With such a configuration, it is possible to obtain a higher wire filling rate, and it is possible to obtain a thin, higher-strength, high-strength wire rope. Further, since the plurality of outer layer strands and the plurality of intermediate strands have the same number, the design of the wire rope is easy.

The plurality of outer layer strands are preferably twisted around the intermediate layer in the same direction in which the plurality of intermediate strands are twisted around the strand core.

With such a configuration, it is possible to twist the plurality of intermediate strands around the strand core while twisting the plurality of outer layer strands around the intermediate layer so as to enter the valley of the adjacent intermediate strands. Therefore, it is possible to obtain a higher wire filling rate, and it is possible to obtain a thin, higher-strength, high-strength wire rope.

It is preferable that the plurality of outer layer strands have the same diameter as each other. With such a configuration, the outer layer strands can be evenly arranged in the circumferential direction of the strand center, and the roundness in the shape of the outer circumference of the wire rope is improved. As a result, uneven wear of the wire rope is reduced, and wear resistance and durability are improved.

The plurality of intermediate strands preferably have the same diameter as each other. With such a configuration, the intermediate strands can be evenly arranged, and the gap between the strand core and the outer layer strand can be uniformly packed.

The outer layer strand is a deformed strand in which the strand of the outermost layer is deformed so as to have a cylindrical outer peripheral surface.

In such a configuration, since each outer layer strand is a deformed strand and has a cylindrical outer peripheral surface, the outer layer strands can be arranged in close contact with each other, and the filling rate of the strands is further improved. To do. Moreover, since the roundness in the shape of the outer circumference of the wire rope is improved, it becomes possible to further reduce the unevenness of the outer circumference of the wire rope, the uneven wear of the wire rope is reduced, and the wear resistance and durability are improved. To do.

The intermediate strand is a deformed strand in which the strands of the outermost layer are deformed so as to have a cylindrical outer peripheral surface.

In such a configuration, since each intermediate strand is a deformed strand and has a cylindrical outer peripheral surface, the intermediate strands are brought into close contact with each other and each intermediate strand is surely adhered to both the strand center and the outer layer strand. It is possible. As a result, the filling rate of the strands is further improved.

The strand core is preferably a deformed strand in which the strands of the outermost layer are deformed so as to have a cylindrical outer peripheral surface.

In such a configuration, since the strand core is a deformed strand and has a cylindrical outer peripheral surface, the strand core and each intermediate strand can be reliably brought into close contact with each other. As a result, the filling rate of the strands is further improved.

As described above, according to the high-strength wire rope of the present invention, the filling rate of the wire is increased to obtain a thin and high strength.

It is sectional drawing of the high strength wire rope which has 12 intermediate strands and outer layer strands which concerns on embodiment of this invention. (A) is a cross-sectional view of an intermediate strand composed of the deformed strand of FIG. 1, and (b) is a cross-sectional view of the strand before diameter reduction molding. It is sectional drawing of the wire rope of the comparative example 1. FIG. It is a graph which shows the result of the repeated bending fatigue test of the wire rope of this Example and Comparative Example 2. It is explanatory drawing explaining the method of the repeated bending fatigue test. (A) is a graph showing the relationship between the load and the deflection of the wire rope of Comparative Example 3, and (b) is a graph showing the relationship between the load and the deflection of the wire rope of the present embodiment. FIG. 5 is a cross-sectional view of a high-strength wire rope having 10 intermediate strands and an outer layer strand, which is a modification of the present invention. It is sectional drawing of the high strength wire rope which has 14 intermediate strands and outer layer strands which is a modification of this invention. FIG. 5 is a cross-sectional view of a 6-strand wire rope having a conventional IWRC6 × Fi (29) structure.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

The wire rope 1 shown in FIG. 1 includes one strand core 2, a plurality of intermediate strands 3, and a plurality of outer layer strands 4, and is a so-called three-layered wire rope.

The wire rope 1 shown in FIG. 1 is a seal type (multilayer structure in which the number of strands is 1 + n + n) having the same number (12) of intermediate strands 3 and 4 outer layer strands, respectively. The present invention is not particularly limited.

The wire rope 1 has a structure in which intermediate strands thinner than these strands are densely packed in the gap between the strand core and the outer layer strand. The structure of the wire rope 1 below will be described more specifically.

The strand core 2 is the core of the wire rope 1, and is formed by twisting a plurality of strands 2a. The strand core 2 shown in FIG. 1 is a WS (36) wire rope (that is, a Warrington strand-shaped wire rope having 36 strands). However, the structure of the strand core 2 is not limited to this in the present invention, and the number of strands and the twisted shape can be arbitrarily selected.

The strand core 2 is a deformed strand in which the wire 2a of the outermost layer is deformed so as to have a cylindrical outer peripheral surface. The specific description of the deformed strand will be described in detail in the description of the intermediate strand 3 below.

The plurality of intermediate strands 3 are twisted around the strand core 2 to form an intermediate layer of the wire rope 1. Each intermediate strand 3 shown in FIG. 1 is a wire rope in which a plurality of (7 wires in the present embodiment) strands 3a are spirally twisted, but the present invention is not limited thereto. The number of strands and the twisted shape can be arbitrarily selected, and S (19) (that is, a sealed wire rope having 19 strands), WS (26) wire rope, and the like can be selected. ..

Each intermediate strand 3 is a deformed strand in which the wire 3a of the outermost layer is deformed so as to have a cylindrical outer peripheral surface. When forming the intermediate strand 3 of the deformed strand, for example, a strand obtained by twisting seven strands f made of a round wire shown in FIG. 2B has a hole slightly smaller than the outer diameter of the strand. This is done by a method such as reducing the diameter by passing it through a die. As shown in FIG. 2A, in the intermediate strand 3 of the deformed strand obtained by the reduced diameter molding, the strand 3a of the outermost layer is deformed into a substantially trapezoidal cross section or a substantially fan-shaped cross section, and a cylindrical outer peripheral surface is formed. Have. The intermediate strand 3 of the irregularly shaped strand has an improved filling rate of the strands as compared with a strand obtained by twisting a plurality of round wires, and if the diameter is the same, the cross section of the intermediate strand 3 is large.

The plurality of intermediate strands 3 have the same diameter as each other. Each intermediate strand 3 has a diameter smaller than the diameter of the strand core 2. These intermediate strands 3 are arranged in contact with the peripheral surface of the strand core 2 and in close contact with each other in the circumferential direction of the strand core 2.

The plurality of outer layer strands 4 and the plurality of intermediate strands 3 in FIG. 1 have the same number (12). Each intermediate strand 3 is in contact with the two adjacent outer layer strands 4 in a state of being inserted into the valley formed by the two adjacent outer layer strands 4.

The plurality of outer layer strands 4 are twisted around the intermediate layer formed by the plurality of intermediate strands 3. Each outer layer strand 4 is formed by twisting a plurality of strands 4a. Each outer layer strand 4 shown in FIG. 1 is a wire rope of S (19), but the present invention is not limited to this, and the number of strands and the twisted shape can be arbitrarily selected. , WS (26) or S (31) wire rope may be used.

Each outer layer strand 4 is a deformed strand in which the wire 4a of the outermost layer is deformed so as to have a cylindrical outer peripheral surface, similarly to the strand core 2 and the intermediate strand 3 described above.

The plurality of outer layer strands 4 have the same diameter as each other. Each outer layer strand 4 has a diameter smaller than the diameter of the strand core 2 and larger than the diameter of the intermediate strand 3. These outer layer strands 4 are arranged in a state where they are in contact with the intermediate strands 3 around the intermediate layer formed by the intermediate strands 3 and the outer layer strands 4 are in close contact with each other in the circumferential direction of the strand core 2.

The outer layer strand 4 shown in FIG. 1 is a strand of S (19) and has a three-layer structure. That is, nine strands are arranged around one strand in the center, and nine strands are further arranged on the outer circumference thereof. On the other hand, the intermediate strand 3 is a strand of 7 or more and has a two-layer structure. As described above, since the outer layer strand 4 has a structure in which the number of strands is larger than that of the intermediate strand 3, the diameter can be made larger than that of the intermediate strand 3 even if a thin strand is used. Is.

The plurality of outer layer strands 4 are twisted around the intermediate layer in the same direction in which the plurality of intermediate strands 3 are twisted around the strand core 2. That is, the plurality of outer layer strands 4 are twisted in parallel around the plurality of intermediate strands 3.

In the wire rope 1 of the present embodiment configured as described above, the plurality of intermediate strands 3 have a diameter smaller than the diameter of the strand core 2 and come into contact with the peripheral surface of the strand core 2 as well as the strand core 2. The intermediate strands 3 are arranged in close contact with each other in the circumferential direction of 2. The plurality of outer layer strands 4 have a diameter smaller than the diameter of the strand core 2 and larger than the diameter of the intermediate strand 3, and come into contact with the intermediate strand 3 around the intermediate layer, and the outer layer strands 4 are connected to each other in the circumferential direction. They are arranged in close contact with each other. Therefore, in this configuration, a plurality of outer layer strands 4 are arranged in close contact with each other in the circumferential direction of the strand core 2, and the outer layer strand 4 and the intermediate strand 3 thinner than the strand core 2 are arranged between the outer layer strand 4 and the strand core 2. A high wire filling rate can be obtained by tightly packing the gaps. This allows the entire wire rope to be loaded. As a result, the filling rate of the wire is improved, and it becomes possible to obtain the wire rope 1 which is thin and has high strength.

Further, in the wire rope 1 of the present embodiment, the plurality of outer layer strands 4 and the plurality of intermediate strands 3 have the same number (12 in FIG. 1), and each intermediate strand 3 has two adjacent outer layer strands. It is in contact with the two adjacent outer layer strands 4 in a state of being inserted into the valley formed by 4. This makes it possible to obtain a higher wire filling rate, and it is possible to obtain a thin, higher-strength, high-strength wire rope. Further, since the plurality of outer layer strands 4 and the plurality of intermediate strands 3 have the same number, the design of the wire rope is easy.

Further, in the wire rope 1 of the present embodiment, the plurality of outer layer strands 4 are twisted around the intermediate layer in the same direction in which the plurality of intermediate strands 3 are twisted around the strand core 2. Therefore, while twisting the plurality of intermediate strands 3 around the strand core 2, it is possible to twist the plurality of outer layer strands 4 around the intermediate layer so as to enter the valleys of the adjacent intermediate strands 3. Therefore, it is possible to obtain a higher wire filling rate, and it is possible to obtain a thin, higher-strength, high-strength wire rope.

Further, in the wire rope 1 of the present embodiment, the plurality of outer layer strands 4 have the same diameter as each other. Therefore, the outer layer strands 4 can be evenly arranged in the circumferential direction of the strand core 2, and the roundness in the shape of the outer circumference of the wire rope is improved. As a result, uneven wear of the wire rope is reduced, and wear resistance and durability are improved.

Further, in the wire rope 1 of the present embodiment, the plurality of intermediate strands 3 have the same diameter as each other. Therefore, the intermediate strands 3 can be evenly arranged, and the gaps between the strand cores 2 and the outer layer strands 4 can be uniformly packed.

Further, in the wire rope 1 of the present embodiment, the outer layer strand 4 is a deformed strand in which the wire 4a of the outermost layer is deformed so as to have a cylindrical outer peripheral surface. Therefore, the outer layer strands 4 can be arranged in close contact with each other, and the filling rate of the strands is further improved. Moreover, since the roundness in the shape of the outer circumference of the wire rope is improved, it becomes possible to further reduce the unevenness of the outer circumference of the wire rope, the uneven wear of the wire rope is reduced, and the wear resistance and durability are improved. To do.

Further, in the wire rope 1 of the present embodiment, the intermediate strand 3 is a deformed strand in which the strand 3a of the outermost layer is deformed so as to have a cylindrical outer peripheral surface. Therefore, the intermediate strands 3 can be brought into close contact with each other, and each intermediate strand 3 can be reliably brought into close contact with both the strand core 2 and the outer layer strand 4. As a result, the filling rate of the strands is further improved.

Further, in the wire rope 1 of the present embodiment, the strand core 2 is a deformed strand in which the wire 2a of the outermost layer is deformed so as to have a cylindrical outer peripheral surface. Therefore, the strand core 2 and each intermediate strand 3 can be reliably brought into close contact with each other. As a result, the filling rate of the strands is further improved.

[Example]
Next, specific examples of the wire rope of the present invention will be described.

First, the wire rope of the present embodiment to which the present invention is applied has the same shape as the wire rope 1 shown in FIG. 1, that is, one strand core 2 and 12 intermediate strands 3 each. And an outer layer strand 4. Specifically, the strand core 2 is a WS (36) type deformed wire strand obtained by twisting a wire 2a having a diameter of 9.86 mm, and each intermediate strand 3 is made of seven strands having a diameter of 3.25 mm. Deformed wire strand. Each outer layer strand 4 is an S (19) type variant wire strand with a diameter of 4.80 mm. The wire rope of this embodiment is obtained by simultaneously twisting 12 intermediate strands 3 and outer layer strands 4 around the strand core 2 in the same twisting direction.

As shown in Table 1, the wire rope of this embodiment has a breaking force of 687 kN while having a rope diameter of 24 mm. It can be seen that, in this embodiment, the breaking force is improved while the rope diameter is smaller than that of Comparative Examples 1 and 2 for the conventionally used deformed wire rope.

Here, in Comparative Example 1, a deformed wire rope [IWRC 6 × P · WS (31) 0/0 B class 30 mm] having a rope diameter of 30 mm, which is a standard product of JIS (Japanese Industrial Standards), was used. As shown in FIG. 3, the deformed wire rope 51 of Comparative Example 1 has an IWRC 52 and six side strands 53 twisted around it. The IWRC 52 is formed by twisting seven rope core strands 52b. Each rope core strand 52b is composed of a plurality of strands 52a spirally twisted together. Each side strand 53 is a deformed strand having a cylindrical outer peripheral surface. A plurality of strands 53a are twisted together, and the outermost strands 53a are deformed to form the above-mentioned cylindrical outer peripheral surface.

Further, in Comparative Example 2, a deformed wire rope [GIWRC 6 × WS (31) 0/0 special species 28 mm] manufactured by Shinko Wire Co., Ltd. with a rope diameter of 28 mm was used. The wire rope of Comparative Example 2 has the same cross-sectional shape as the wire rope of Comparative Example 1 shown in FIG.

Further, according to the verification of the present inventor, in the cross-sectional structure of the wire rope 1 of the present embodiment shown in FIG. 1, the filling rate of the wire rope (that is, the ratio of the cross-sectional area of the wire rope to the cross-sectional area of the wire rope). ) Was found to be 74%. On the other hand, it was found that the wire rope filling rate of the wire rope of Comparative Example 1 shown in FIG. 3 could be obtained only up to about 62%. Therefore, it can be seen that the wire rope 1 of the present embodiment shown in FIG. 1 has a high wire filling rate, so that a high strength is obtained even though the diameter is small.

Next, in order to confirm the quality of the wire rope of the above-mentioned Example, repeated bending fatigue tests of the deformed wire ropes of the present Example and Comparative Example 3 were performed. In Comparative Example 3, a deformed wire rope [GIWRC 6 × WS (31) 0/0 special species 24 mm] manufactured by Shinko Wire Co., Ltd., which has the same diameter (24 mm) as the wire rope of this example, was used.

In the repeated bending fatigue test, as shown in FIG. 5, the wire rope W is reciprocated back and forth while the wire rope W is hung around the pair of sheaves (pulleys) C in an S shape. A bending load is repeatedly applied to W, and the state of disconnection of the wire rope W is examined. The diameter of the sheave C used in this repeated bending fatigue test is 25 times the diameter of the wire rope W.

The graph of FIG. 4 shows a curve I showing the fatigue characteristics of the wire rope of the present embodiment and a curve II showing the fatigue characteristics of the wire rope of Comparative Example 3. Looking at these curves I and II, in the wire rope (curve I) of the present embodiment, the wire rope starts to break when the number of repeated round trips is about 27,000, and 10% of all the wires are wire. It can be seen that it takes about 52,000 times to reach the stage D1 where the wire is broken. On the other hand, in the wire rope (curve II) of Comparative Example 3, it can be seen that the wire rope starts to be broken when the number of repeated round trips is about 18,000, and the wire rope is broken at about 36000 times to reach the stage D2.

Therefore, as compared with the wire rope of Comparative Example 3, the wire rope of this example has an increase of 10% or more in any number of repeated round trips at the start of wire breakage and the 10% wire breakage stage, resulting in fatigue. It can be seen that the characteristics are greatly improved.

Next, the flexibility of the wire rope of this example was verified in comparison with the wire rope of Comparative Example 3 described above. FIG. 6A shows a graph showing the relationship between the deflection of the wire rope of Comparative Example 3 and the load, and FIG. 6B shows a graph showing the relationship between the deflection of the wire rope and the load of the present embodiment. It is shown. Comparing the slopes of the straight lines R1 and R2 showing the correlation between the deflection and the load in the graphs of FIGS. 6 (a) and 6 (b), the slope of the straight line R2 shown in FIG. 6 (b) is shown in FIG. 5 (a). It can be seen that the slope is gentler than the slope of the straight line R1 shown in). This means that the wire rope of this embodiment has a larger amount of deflection when subjected to the same load than the wire rope of Comparative Example 3, and is easily bent.

Further, Table 2 shows the flexibility showing the flexibility (softness) of the wire rope of the present embodiment and the wire rope of the comparative example 3.

The flexibility A is obtained as follows, and the larger the flexibility A, the easier it is to bend.
A = 4.96 × 10 ⁴ × d ⁴ / L ³ × B

Here, d: rope diameter, L: test span (that is, a predetermined length of the rope), B: the slope of the straight line R1 or R2 in the graph of FIG.

As shown in Table 2, the flexibility of the wire rope of this example is 714, which is larger than the flexibility of the wire rope of Comparative Example 3 (619). Therefore, the wire rope of this example is compared. It can be seen that it is easier to bend and softer than the wire rope of Example 3.

From the above results, since the wire rope of this embodiment is softer than the conventional wire rope (Comparative Example 3), no problem occurs when the wire rope is wound on the winch drum. Therefore, the wire rope of the present embodiment achieves a long life while having a high strength as compared with the conventional wire rope, and also has a high flexibility. Therefore, it is a general winch drum in a crane or the like. It is possible to wrap it around and use it.

[Modification example]
In the wire rope 1 of the present embodiment described above, 12 intermediate strands 3 and outer layer strands 4 are arranged, respectively, but the present invention is not limited to this, and the number of intermediate strands 3 and outer layer strands 4 is not limited thereto. It is possible to change. For example, as a modification of the present invention, as shown in FIG. 7, a wire rope 11 having a structure in which 10 intermediate strands 3 and an outer layer strand 4 are arranged around a strand core 2 may be used. It has been confirmed by the inventor of the present invention that in the structure of the wire rope 11 having the 10 intermediate strands 3 and the outer layer strands 4, the filling rate of the strands is 73% and the flexibility is 651. It can be seen that both of them exceed the filling rate (62%) and flexibility (619) of the conventional wire rope.

Further, as another modification of the present invention, as shown in FIG. 8, a wire rope 21 having a structure in which 14 intermediate strands 3 and an outer layer strand 4 are arranged around a strand core 2 may be used. .. Even in the structure of the wire rope 21 having the 14 intermediate strands 3 and the outer layer strand 4, it is possible to improve the filling rate of the strands as compared with the conventional wire rope.

The wire ropes 1, 11 and 21 of the above-described embodiment are all wire rope types (that is, seal type) in which the number of intermediate strands 3 and the number of outer layer strands 4 are the same. It is not limited to. In the present invention, the diameter of the intermediate strand 3 is smaller than the diameter of the outer layer strand 4, and the adhesion between the intermediate strands 3 and the outer layer strands 4 and the adhesion between the intermediate strand 3 and the outer layer strand 4 are ensured. Then, the number of the intermediate strands 3 and the number of the outer layer strands 4 can be arbitrarily set.

1, 11, 21 High-strength wire rope 2 Strand core 2a, 3a, 4a Wire 3 Intermediate strand 4 Outer layer strand

Claims (8)

A single strand core formed by twisting multiple strands,
A plurality of intermediate strands, each of which is twisted with a plurality of strands and twisted around the strand core to form an intermediate layer,
Each is formed by twisting a plurality of strands, and includes a plurality of outer layer strands twisted around the intermediate layer formed by the plurality of intermediate strands.
The plurality of intermediate strands have a diameter smaller than the diameter of the strand core and are arranged in a state of being in contact with the peripheral surface of the strand core and in close contact with each other in the circumferential direction of the strand core.
The plurality of outer layer strands have a diameter smaller than the diameter of the strand core and larger than the diameter of the intermediate strand, and are in contact with the intermediate strand around the intermediate layer and are connected to each other in the circumferential direction. Are placed in close contact with each other,
High strength wire rope. The plurality of outer layer strands and the plurality of intermediate strands have the same number.
Each of the intermediate strands is in contact with the two adjacent outer layer strands in a valley formed by the two adjacent outer layer strands.
The high-strength wire rope according to claim 1. The high-strength wire rope according to claim 1 or 2, wherein the plurality of outer layer strands are twisted around the intermediate layer in the same direction in which the plurality of intermediate strands are twisted around the strand core. .. The plurality of outer layer strands have the same diameter as each other.
The high-strength wire rope according to any one of claims 1 to 3. The plurality of intermediate strands have the same diameter as each other.
The high-strength wire rope according to any one of claims 1 to 4. The outer layer strand is a deformed strand in which the wire of the outermost layer is deformed so as to have a cylindrical outer peripheral surface.
The high-strength wire rope according to any one of claims 1 to 5. The intermediate strand is a deformed strand in which the strands of the outermost layer are deformed so as to have a cylindrical outer peripheral surface.
The high-strength wire rope according to any one of claims 1 to 6. The strand core is a deformed strand in which the strands of the outermost layer are deformed so as to have a cylindrical outer peripheral surface.
The high-strength wire rope according to any one of claims 1 to 7.

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