JP2002235290A - Colored wire rope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a colored wire rope which does not cause the deterioration of the rope, such as the deterioration of fatigue resistance, scarcely causes peeling and the transfer of a color to other articles, and can be produced at a relatively low cost. SOLUTION: In this colored wire rope the valley portions of the rope coated with a non-adhesive rope-coloring oil agent capable of forming protecting oil films.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a colored wire rope.

[0002]

2. Description of the Related Art A wire rope is generally formed by twisting a plurality of strands or strands. However, since the color tone of a steel wire as a material is directly displayed, there are the following problems. When clear visibility and distinction are required, for example, when a guard cable or the like is used on a boundary where no entry is allowed or on a taxiway, it is difficult to easily recognize and recognize it. It lacks the effect of so-called safety colors that appeal to the sight. If the rope was used as part of a structure,
A sense of incongruity with the surrounding colors and tones occurs, and the effect as a so-called color coordination effect or a protective color that blends into the background is poor.

Conventionally, as a countermeasure, there has been a method of baking or electrodeposition coating on a rope or a wire, and a method of applying a paint to a rope or a wire (no baking).

[0004]

However, the method of
There is a problem in that the performance of the rope, particularly fatigue resistance, is reduced due to the deterioration of the rust-preventive oil impregnated in the rope due to the temperature rise in the degreasing and baking steps. In addition, in the baking coating of the strand, there is a problem that the cost is increased because the strand must be applied to each strand, and the coating film is peeled off by friction in the subsequent twisting step. Furthermore, when using a rope, the coating film peels off due to friction with sheaves and rolls, and stains surrounding members such as machines and floors, and enters the machine mechanism to adversely affect operation. there were.

[0005] The method is simpler than the method, but the coating film is poor in flexibility, so that when dried, cracks and cracks occur during use and the film easily peels off, and also adversely affects the fatigue properties of the rope. There was a problem of giving.

The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to prevent the rope performance such as fatigue resistance from deteriorating, and to peel off or adhere to other objects. An object of the present invention is to provide a colored wire rope which has little color transfer and can be manufactured relatively inexpensively. In the present invention, the term "rope" is a general term for a plurality of strands or strands twisted together, and thus includes not only a rope but also a cable. , Static cables, and moving cables.

[0007]

In order to achieve the above object, the present invention is characterized in that a non-adhesive colored rope oil agent capable of forming a protective oil film is applied to the valley of the rope.

As the colored rope oil, 5-75 parts of petroleum hydrocarbon oil, 15-50 olefin oligomers
Parts, a coloring pigment of 10 to 40 parts and an additive of 3 to 10 parts, and a base oil to which a solvent for obtaining a viscosity necessary for coating is added is preferable. The coloring pigment is preferably a fluorescent pigment whose spectral curve has a reflectance of greater than 100% reflectance of standard white.

Further, the present invention is made by a step of applying a colored rope oil to the outer periphery of the rope, then wiping the colored rope oil from surfaces other than the valleys of the rope, and then evaporating the solvent in the colored rope oil. It is characterized by having.

[0010]

The colored rope according to the present invention is coated with a non-adhesive colored rope oil agent capable of forming a protective oil film on the valleys of the strands and strands. The performance does not decrease, and because it is colored with valleys and has flexibility and moderate oil lubrication with a non-adhesive oil agent, cracks and cracks do not occur when using the rope, There is almost no peeling due to friction with sheaves and rolls, and no color transfer to other objects occurs.

Therefore, the colored steel rope according to the present invention is effective for various uses, such as guard cables, which require visibility and discrimination, and various uses, for which a visually appealing safety color is required. It is also effective.
Furthermore, since the color can be adjusted to any color by using pigments, it is possible to improve the color coordination effect in harmony with the surrounding scenery, or to use a colored rope oil such as green or brown to prevent the presence of a protective color. An effect can also be obtained. In addition, since characteristics such as production time and strength can be represented by a color tone, it is also suitable for applications such as wire rope management and classification.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show a first embodiment of a colored wire rope according to the present invention, wherein 1 denotes the entire rope, in which six strands 3 are arranged around a core (fiber or resin in this example) 2. And twist. Each strand 3 is configured by twisting a plurality of (19 in this example) strands 4.

Although such a wire rope is conventionally known, the present invention applies a colored rope oil agent 5 having a desired color tone to a valley of the rope 1, that is, a valley region of each strand 3. The oil agent 5 extends along the longitudinal direction of each of the spiral strands 3 as shown in FIG.

FIG. 3 shows a second embodiment of the present invention.
In this example, the colored rope oil agent 5 is applied to the valley region of each strand 3 and also applied to the valleys between a number of strands 4 and 4 constituting each strand 3. The valley of the rope in the present invention therefore includes both the valley between the strands 3 and 3 and / or the valley between the strands 4 and 4.

FIG. 4 shows a third embodiment of the present invention.
In this example, the colored rope oil agent 5 is applied to only a part of the rope 1, that is, two places between the strands 3. Of course, only one location may be used, or three or more locations may be provided.

The rope to be used in the present invention is not limited to the above-mentioned embodiment, and the rope to be used is arbitrary, including the core. Figure 5 shows some examples.
(A) is a 1 × 3 rope, (b) is a 1 × 7 rope,
(C) is a 1 × 12 rope, (d) is a 1 × 16 rope, (e) is a 1 × 19 rope, (f) is a 6 × 7 rope, and (g) is a mono rope. A × F (40) rope, and (h) shows a 6 × Fi (29) rope. In each case, a colored rope oil agent 5 is applied between the valleys of the strands 4 and / or the strands 3.

The colored rope oil agent 5 is not limited to being provided continuously over the entire length of the rope, but may be applied at intervals so as to exhibit a discontinuous line. Moreover, it may be applied to the same cross section perpendicular to the longitudinal direction of the rope in an annular shape, and this may be repeated at predetermined intervals in the longitudinal direction of the rope.

The colored rope oil agent 5 forms a non-adhesive protective film on the rope 1 and the strand 3 and has the property of having flexibility and moderate oil lubrication while being a non-adhesive hard oil agent. are doing. In other words, colored rope oil 5
Has the property of staying and fixing on the surfaces of the strands 3 and the wires 4 after the solvent evaporates while having the performance of dry grease, that is, grease.

The coloring rope oil agent 5 is specifically described as follows.
(A) 5 to 75 parts of a petroleum hydrocarbon oil, (B) 15 to 50 parts of an olefin oligomer, (C) a coloring pigment 10
It is preferable to use 40 parts and (D) 3 to 10 parts of an additive, to which a solvent for obtaining a diluent viscosity required for coating is added to the base oil and which can be used at room temperature.

The component (A) is blended to form a non-adhesive film having a slight oil lubricity, and is a solid oil such as a petroleum hydrocarbon wax or a synthetic hydrocarbon wax.
And petroleum hydrocarbon oils that are liquid at room temperature. The former has a melting point (JIS K 2235) of 80 ° C or more, a penetration (JIS K 2207) of 60 or less, and a hue (ASTM).
And a light-colored wax component of L1.0 or less is typical,
The latter has a hue of L2.0 or less and a viscosity of 300 mm ² / sec.
A typical example is a high-viscosity light-colored lubricating oil having a temperature of c ＠ 40 ° C. or higher. The reason why the lower limit of the component (A) is set to 5 parts is that if the content is less than 5 parts, the curing of the coating film is weakened in the case of the wax component, and the oiliness of the coating film is lost in the case of the oil component. Further, the upper limit is set to 75 parts in the case of a wax component more than this,
This is because the coating becomes too hard, and in the case of an oil component, the coating becomes too soft.

The component (B) is compounded for improving the adhesive strength and the cohesive strength of the coating film. The component (B) includes a paste-like soft solid and a resin-like hard solid depending on the shape, and the former has a molecular weight of 30.
It is a medium molecular weight polymer of 00 to 10,000, the latter being selected from petroleum hydrocarbon resins having a melting point of 100 ° C. or higher and a molecular weight of 1,000 to 3,000. The reason that the lower limit of the component (B) is set to 15 parts is that if the amount is less than 15 parts, the adhesive strength and the cohesive strength of the coating film become weak. Further, the upper limit is set to 50 parts because if the amount is more than 50 parts, the coating film has too strong adhesive force and cohesive force, and cracks and stickiness appear.

(C) is an essential component in the present invention,
The present inventors have tried various pigment components and examined the visibility. As a result, the most preferable one was a fluorescent pigment. that is,
Unlike things like ordinary rods, wire ropes and strands are not smooth and have many valleys due to twisting,
This is because the valley is deeper than the outer surface, so that a clear coloring degree is desired to improve the visibility from the outside.

As the fluorescent pigment, those having a spectral curve whose reflectance is larger than 100% of the reflectance of standard white are preferable, and specific examples thereof include diamino stilbene dyes which are organic dyes, After dissolving a fluorescent dye such as fluorescein, nethioflapine, eosin, and rhodamine B in a synthetic resin having an affinity for oil such as acrylic resin, alkyd resin, and urea resin to form a solid solution,
What was crushed to a fine powder body is mentioned.

The reason why the lower limit of the component (C) is set to 10 parts is that a sharp coloring degree is not obtained below this level, and that the upper limit is set to 40 parts. And the economic value only increases. The color is arbitrary, such as reddish-purple pink, red, yellow, green, and blue. In addition, fluorescent pigments are said to have a slightly inferior fading property to ordinary pigments, but can be adequately dealt with by increasing the concentration as much as possible or by adding ordinary pigments as an auxiliary agent for the fluorescent pigment. is there.

The component (D) is used to promote the performance of the colored rope oil agent 5, and is appropriately selected from commercially available additives for petroleum products. Additives include rust inhibitors, antioxidants, fixed lubricants (ethylene tetrafluoride powder, talc, etc.)
And the like. In addition, a drying accelerator for an oil film, for example, a vegetable oil having an iodine value of 120 or more and a dryer may be added. The reason why the lower limit of the component (D) is set to 3 parts is that the effect of the additive, such as rust prevention and safety, cannot be expected below this level, and the upper limit is set to 10 parts. This is because the effect of the agent is limited and the economic value only increases.

According to the present invention, in order to uniformly and smoothly apply the base oil comprising the above components to the surface of the rope 1 or the strand,
The solvent is diluted by adding 20 to 60 parts of the solvent to 100 parts of the base oil. As the solvent, a known petroleum-based solvent is sufficient, but since the coating process on the rope is generally performed once and then wound on a drum or a reel, it is important to finish a clear color tone with a single coating. Therefore, the dilution viscosity with the solvent is appropriately adjusted on site.

In the present invention, the colored rope oil agent 5 can be applied and colored even during use of the rope, but preferably after finishing the rope and before use. To explain this process,
In the rope finishing step, a normal rust preventive grease is applied with a little or no application.

Next, the colored rope oil agent 5 is applied to the rope 1. This step may be performed at room temperature and upstream of the winding machine of the rope production line. Or a means similar to an extruder may be used. In the case of the first embodiment and the second embodiment, the rope 1 is applied to the entire cross section perpendicular to the longitudinal direction, and then the surplus rope surface except for the valley is squeezed by arranging means arranged downstream. The colored rope oil agent 5 is removed.

In this state, since the colored rope oil agent 5 contains a solvent, the solvent is evaporated next. This step is
Any method such as natural drying and blowing of cold air is optional, but from the viewpoint of efficiency, drying is performed by applying a warm gas having a temperature lower than the flash point of the solvent. This can be performed continuously by, for example, passing through a tunnel furnace or the like having a hot gas outlet. Thus, the colored steel rope of the present invention is completed. If necessary, a transparent wet grease may be applied thereafter.

[0030]

Concrete Example 1 A wire rope having a structure of 6 × 19: 6 × (1 + 6 + 12), a wire diameter of an upper layer of 0.66 mm and a rope diameter of 10 mm was used. A red-violet fluorescent pigment having a melting point of 85 ° C., a petroleum microwax having a penetration of 27, a molecular weight of 60%, an ethylene-propylene copolymer having a molecular weight of 8,000, a commercial rust inhibitor of 4%, and an absorbance of 150% at a fluorescent spectrum of 620 nm 2
By the blending of 0%, a clear pink non-adhesive oil (base oil) having a melting point of 115 ° C. and a penetration of 25 was obtained. This base oil 100
The mixture was diluted by adding 50 parts of a petroleum solvent having a flash point of 40 ° C.
A colored rope oil which can be applied at room temperature was obtained. The colored rope oil is applied to the outer periphery of the wire rope by about 0.5 to 1.0 mm.
It is applied so as to be thick, and then the parts other than the valleys are wiped off and removed.
And the colored rope shown in FIG. 2 was obtained.

Specific Example 2 The configuration is 4 × F (40): 4 × F [a + 8 + (8 + 8) +
16], the upper element wire diameter is 0.67 mm, and the rope diameter is 10 m
m wire rope was used. Viscosity 430mm ² / sec
36% naphthenic hydrocarbon oil at 40 ° C, softening point 120
C., 34% of an aromatic hydrocarbon resin having a molecular weight of 1500, 6% of petroleum microwax having a melting point of 85.degree. To 100 parts of this base oil, 25 parts of a petroleum-based solvent having a flash point of 40 ° C. was added and diluted to obtain a colored rope oil agent that can be applied at room temperature. The colored rope oil is applied to the outer periphery of the wire rope by about 0.5 to
The coating was applied so as to have a thickness of 1.0 mm, and then the portions other than the valleys were wiped off and removed. Blowing hot air of about 30 ° C. and drying, the colored rope shown in FIG. 5 (g) was obtained.

Specific Example 3 The structure is 6 × Fi (29): 6 × Fi [1 + 7 + (7) +
14], the wire diameter of the upper layer is 0.57 mm, and the rope diameter is 10 m.
m wire rope was used. In the component composition of Example 2, 10% of a red-violet fluorescent pigment, 8% of an inorganic white pigment, and 2% of an organic red pigment were used to obtain a pink base oil having a melting point of 126 ° C and a penetration of 30. Flash point 40
The mixture was diluted with 25 parts of a petroleum-based solvent at 25 ° C. to obtain a colored rope oil which can be applied at room temperature. The colored rope oil agent is applied to the wire rope so as to have a thickness of about 0.5 to 1.0 mmmm, and then a portion excluding a valley is removed by wiping.
Drying was performed by blowing the warm air before and after to obtain a colored rope shown in FIG. 5 (h).

Prior to coating, each of the colored rope oils of Examples 1, 2 and 3 was tested alone. All are -18 ° C
Has a flexibility to prevent cracks and cracks even when bent in a low-temperature bending test (JIS K 5400), and a salt spray test (JIS K 2246) 168.
Even with HR, it did not rust and showed excellent protective film performance.

The results of testing the characteristics of the colored wire ropes of Examples 1, 2 and 3 are as follows. 1) Load 1/10 of breaking force (SF: 10), diameter 20
When a U-bend fatigue test was performed under the condition of a sieve of 0 mm (D / d = 20), it was no different from a normal grease-coated rope not coated with a colored rope oil agent. Also, no color transfer to the sheave was found. 2) Each colored wire rope was cut into a length of 30 cm to prepare a sample which was sieved so that both ends were not separated,
The bending test was performed 10,000 times in a U-shape so that both ends became 15 cm. Upon visual observation, no peeling of the colored rope oil was observed.

3) Use a white cloth to tie the rope 1k from a right angle
It was grasped with the force of g and the surface of the cloth was observed, but there was no color transfer. 4) Each rope was stretched vertically along with a normal wire rope (normally with grease) not coated with colored rope oil, and the color tone was visually observed. The normal wire rope became invisible at a distance of 40 m. The rope of the present invention was visible even at a distance of 80 m from the stretched position.

[0036]

According to the first aspect of the present invention described above, there is no deterioration in the rope performance such as fatigue, the peeling and the color transfer to other objects are extremely small, and the colored wire rope meets various uses and purposes. Can be provided.

According to the second aspect, the non-adhesive hard oil agent having flexibility and moderate oil lubricity can be easily handled, can be applied at room temperature, and can easily form an arbitrary color tone. An excellent effect is obtained.

According to the third aspect, an excellent effect of being able to obtain a clear coloring degree even when applied to the valley by twisting is obtained. According to the fourth aspect, an excellent effect that the visibility is further improved because the colored area is increased can be obtained. According to the fifth aspect, there is obtained an excellent effect that a colored wire rope which does not deteriorate in rope performance such as fatigue property and has very little peeling and color transfer to another object can be efficiently manufactured in a simple process.

[Brief description of the drawings]

FIG. 1 is a partial side view showing a first embodiment of a colored wire rope according to the present invention.

FIG. 2 is an enlarged sectional view of FIG.

FIG. 3 (a) shows a second example of a colored wire rope according to the present invention.
The partial side view which shows an Example, (b) is III- of (a).
FIG. 3 is a partial cross-sectional view along the line III.

FIG. 4 is a sectional view showing a third embodiment of a colored wire rope according to the present invention.

FIGS. 5A to 5H are cross-sectional views showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rope 3 Strand 4 Element wire 5 Colored rope oil

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kiyohachi Naganuma 3-5-6 Tamachi, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture F-Term (in reference) 3B153 AA08 AA42 AA45 CC13 CC52 CC75 FF01 FF42 GG05 GG40

Claims (5)

[Claims] 1. A colored wire rope, wherein a non-adhesive colored rope oil agent capable of forming a protective oil film is applied to a valley of the rope. 2. The colored rope oil agent is a petroleum hydrocarbon oil agent 5.
A solvent for obtaining the viscosity required for application to a base oil comprising from 75 to 75 parts, 15 to 50 parts of an olefin oligomer, 10 to 40 parts of a coloring pigment and 3 to 10 parts of an additive. 2. The colored wire rope according to 1. 3. The colored wire rope according to claim 2, wherein the coloring pigment is a fluorescent pigment whose spectral curve has a reflectance of greater than 100% reflectance of standard white. 4. The colored wire rope according to any one of claims 1 to 3, wherein the colored rope oil agent includes one coated on the valley between the strands of the rope in addition to the valley between the strands of the rope. 5. A colored rope oil agent is applied to the outer periphery of the rope,
The colored wire rope according to any one of claims 1 to 4, wherein the colored wire rope is produced by a step of wiping the colored rope oil from surfaces other than the valleys of the rope and then evaporating the solvent in the colored rope oil.