CN210151473U - Galvanized steel strand - Google Patents
Galvanized steel strand Download PDFInfo
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- CN210151473U CN210151473U CN201920639377.XU CN201920639377U CN210151473U CN 210151473 U CN210151473 U CN 210151473U CN 201920639377 U CN201920639377 U CN 201920639377U CN 210151473 U CN210151473 U CN 210151473U
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Abstract
The utility model discloses a galvanized steel strand, which comprises a central steel wire and a plurality of peripheral steel wires wound outside the central steel wire, wherein the surface of the peripheral steel wire is provided with a galvanized layer, the outside of the peripheral steel wire is provided with a protective layer, and the protective layer comprises an inner layer, a first reinforcing layer, a middle layer, a second reinforcing layer and an outer layer which are sequentially arranged from inside to outside; the inner layer, the middle layer and the outer layer are thermoplastic plastic layers; the first reinforcing layer is a cylindrical structure formed by spirally winding a first continuous fiber reinforced thermoplastic resin prepreg tape, and the second reinforcing layer is a cylindrical structure formed by spirally sheathing a second continuous fiber reinforced thermoplastic resin prepreg tape. The utility model provides an inoxidizing coating is monolithic structure, great improvement the corrosion resistance and holistic structural strength of steel strand wires to two enhancement layers adopt different fiber material and different winding angles respectively, and comprehensive properties is strong.
Description
Technical Field
The utility model relates to a steel strand wires technical field especially relates to a galvanized steel strand wires.
Background
Galvanized steel strand usually refers to and is used for carrier cable, acting as go-between and strengthening the core etc., also can regard as the earth wire of overhead transmission, the arresting cable on highway both sides or the structure cable in the building structure, though the surface is galvanized, but with the aggravation of atmospheric pollution, the steel strand exposes in the air for a long time, must be corroded, influence life, and at present steel strand, waterproof nature is poor, also be stained with the water and corrode easily, in prior art, mostly through set up various inoxidizing coatings on galvanized steel strand's surface and improve corrosion resistance, and then increase of service life, but even so, because of the design problem of inoxidizing coating self, its reinforcing effect to galvanized steel strand is limited, and is not directly proportional with corresponding cost input.
SUMMERY OF THE UTILITY MODEL
The utility model aims to avoid the shortcomings of the prior art and provide a galvanized steel strand, thereby effectively solving the shortcomings existing in the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a galvanized steel strand comprises a central steel wire and a plurality of peripheral steel wires wound on the outer side of the central steel wire, wherein a galvanized layer is arranged on the surface of the peripheral steel wires, and a protective layer is arranged on the outer side of the peripheral steel wires and comprises an inner layer, a first reinforcing layer, a middle layer, a second reinforcing layer and an outer layer which are sequentially arranged from inside to outside;
the inner layer, the middle layer and the outer layer are thermoplastic plastic layers;
the first reinforcing layer is a cylindrical structure formed by spirally winding a first continuous fiber reinforced thermoplastic resin prepreg tape, and an included angle is formed between the first continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire;
the second reinforcing layer is of a cylindrical structure formed by spirally sleeving a second continuous fiber reinforced thermoplastic resin prepreg tape, and an included angle is formed between the second continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire.
Furthermore, the inner layer is provided with reinforcing wires, and the reinforcing wires are formed by continuously twisting at least two steel wires.
Further, an included angle between the first continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire is 52-65 degrees; the included angle between the second continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire is 8-22 degrees.
Further, an included angle between the first continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire is 58 degrees; and the included angle between the second continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire is 17 degrees.
Further, the continuous fibers contained in the first continuous fiber reinforced thermoplastic resin prepreg tape are glass fibers; the continuous fiber contained in the second continuous fiber reinforced thermoplastic resin prepreg tape is aramid fiber.
Further, the inner layer is tightly wrapped on the peripheral steel wire.
The above technical scheme of the utility model following beneficial effect has: the utility model provides an inoxidizing coating is monolithic structure, great improvement the corrosion resistance and holistic structural strength of steel strand wires to two enhancement layers adopt different fiber material and different winding angles respectively, and comprehensive properties is strong.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic structural diagram of a first enhancement layer according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second enhancement layer according to an embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 4, the galvanized steel strand according to the embodiment includes a central steel wire 1 and a plurality of peripheral steel wires 2 wound around the central steel wire 1, a galvanized layer 3 is disposed on the surface of the peripheral steel wires 2, and a protective layer is disposed on the outer side of the peripheral steel wires 2, and the protective layer includes an inner layer 4, a first reinforcing layer 5, a middle layer 6, a second reinforcing layer 7, and an outer layer 8, which are sequentially disposed from inside to outside.
As shown in fig. 1, six outer steel wires 2 are provided.
The inner layer 4, the middle layer 6 and the outer layer 8 are all thermoplastic plastic layers, and in this embodiment, the thermoplastic plastic layers are made of polyethylene.
The first reinforcing layer 5 is a cylindrical structure formed by spirally winding a first continuous fiber reinforced thermoplastic resin prepreg tape 51, and an included angle is formed between the first continuous fiber reinforced thermoplastic resin prepreg tape 51 and the axial direction of the central steel wire 1; the second reinforcing layer 7 is a cylindrical structure formed by spirally sleeving a second continuous fiber reinforced thermoplastic resin prepreg tape 71, an included angle is formed between the second continuous fiber reinforced thermoplastic resin prepreg tape 71 and the central steel wire 1 in the axial direction, wherein the first continuous fiber reinforced thermoplastic resin prepreg tape 51 and the second continuous fiber reinforced thermoplastic resin prepreg tape 71 contain the same main body materials and are thermoplastic plastic materials, and the difference is that: the continuous fiber contained in the first continuous fiber reinforced thermoplastic resin prepreg tape 51 is glass fiber, the continuous fiber contained in the second continuous fiber reinforced thermoplastic resin prepreg tape 71 is aramid fiber, the two reinforcing layers 5 adopt different continuous fibers, and the complementation of respective advantages can be realized, wherein the aramid fiber is good in flexibility but relatively expensive in price, the glass fiber is good in rigidity and relatively low in price, and the two layers can play a good neutralizing role, so that the steel strand is strong in comprehensive performance and good in protection effect.
Of course, the glass fibers and aramid fibers described above can be replaced by other fibers having the same or similar properties.
Be provided with reinforcing wire 9 in inlayer 4, reinforcing wire 9 is formed through two piece at least steel wires through continuous twists, and in this embodiment, reinforcing wire 9 is provided with six along circumference is even, great improvement axial tensile strength.
As shown in fig. 3, the angle a between the first continuous fiber reinforced thermoplastic resin prepreg 51 and the central steel wire 1 in the axial direction is 52 to 65 °, and the first continuous fiber reinforced thermoplastic resin prepreg 51 is wound at the angle, so that the radial structural strength can be improved; as shown in fig. 4, the angle b between the second continuous fiber-reinforced thermoplastic resin prepreg 71 and the center steel wire 1 in the axial direction is 8 to 22 °, and the second continuous fiber-reinforced thermoplastic resin prepreg 71 is wound at the angle described above, whereby the structural strength in the axial direction can be improved.
It is preferred. The included angle between the first continuous fiber reinforced thermoplastic resin prepreg tape 51 and the axial direction of the central steel wire 1 is 58 degrees; the included angle between the second continuous fiber reinforced thermoplastic resin prepreg tape 71 and the central steel wire 1 in the axial direction is 17 degrees, and repeated tests for multiple times show that when the included angle is adopted for winding, the overall structural strength is the most excellent.
The inner layer 4 is tightly wrapped on the outer steel wire 2.
The manufacturing method of the galvanized steel strand comprises the following steps:
the method comprises the following steps: galvanizing the peripheral steel strands, and stranding the central steel wire 1 and the peripheral steel wires 2 by using a stranding machine to form core wires;
step two: sweeping the surface of the core wire;
step three: introducing the thermoplastic material into an extruder, heating the thermoplastic material to a semi-fluid state (to a temperature of 70 ℃ to 260 ℃), and applying the semi-fluid thermoplastic material to the surface of the core wire through the extruder to form the inner layer 4, the extruder operating under conditions such that: the temperature T is 100-250 ℃, the pressure is not less than 10MPa, and the parameters related to the middle layer 6 and the outer layer 8 are set to be the same;
step four: after the inner layer 4 is cooled and shaped, the first continuous fiber reinforced thermoplastic resin prepreg tape 51 is spirally wound on the surface of the inner layer 4, the first continuous fiber reinforced thermoplastic resin prepreg tape 51 is heated, so that the thermoplastic resin in the first continuous fiber reinforced thermoplastic resin prepreg tape 51 is in a molten state, after cooling and shaping, the first continuous fiber reinforced thermoplastic resin prepreg tape 51 is tightly covered on the outer side of the inner layer 4, and as the main body material in the first continuous fiber reinforced thermoplastic resin prepreg tape 51 is the same as the material of the inner layer 4 and is a thermoplastic material, the main body material and the inner layer 4 can be well melted together after being heated, so that a whole is formed;
step five: coating a semi-fluid thermoplastic material on the surface of the first continuous fiber reinforced thermoplastic resin prepreg tape 51 by an extruder to form the middle layer 6, wherein the first continuous fiber reinforced thermoplastic resin prepreg tape 51 is softened to a certain extent due to the high temperature of the thermoplastic material in the coating process, and the first continuous fiber reinforced thermoplastic resin prepreg tape 51 and the middle layer 6 are made of the same material and are made of the same thermoplastic material, so that the first continuous fiber reinforced thermoplastic resin prepreg tape 51 and the middle layer 6 are formed into a whole;
step six: after the middle layer 6 is cooled and shaped, the second continuous fiber reinforced thermoplastic resin prepreg tape 71 is spirally wound on the surface of the middle layer 6, the second continuous fiber reinforced thermoplastic resin prepreg tape 71 is heated, so that the thermoplastic resin in the second continuous fiber reinforced thermoplastic resin prepreg tape 71 is in a molten state, after cooling and shaping, the second continuous fiber reinforced thermoplastic resin prepreg tape 71 is tightly covered on the outer side of the middle layer 6, and as the main material in the second continuous fiber reinforced thermoplastic resin prepreg tape 71 is the same as the material of the middle layer 6 and is a thermoplastic material, the main material and the material can be well melted together after heating to form a whole;
step seven: coating a semi-fluid thermoplastic material on the surface of the second continuous fiber reinforced thermoplastic resin prepreg 71 by an extruder to form the outer layer 8, wherein the second continuous fiber reinforced thermoplastic resin prepreg 71 is softened to a certain extent due to the high temperature of the thermoplastic material during the coating process, and the second continuous fiber reinforced thermoplastic resin prepreg 71 and the outer layer 6 are made of the same thermoplastic material and form a whole body;
step eight: cooling the product of the seventh step by water;
step nine: and winding the cooled product into a disc.
Preferably, in the fourth step, the inner layer 4 is heated at the same time as the first continuous fiber-reinforced thermoplastic resin prepreg tape 51 is heated, so that the welding process can be completed more favorably.
Preferably, in step six, the second continuous fiber reinforced thermoplastic resin prepreg tape 71 is heated, and the middle layer 6 is also heated, so that the welding process can be completed more favorably.
Through the process, the protective layers can be well combined into a whole, the corrosion resistance of the steel strand and the integral structural strength are greatly improved, the two reinforcing layers are made of different fiber materials and different winding angles respectively, and the comprehensive performance is high.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (6)
1. A galvanized steel strand comprises a central steel wire and a plurality of peripheral steel wires wound on the outer side of the central steel wire, wherein a galvanized layer is arranged on the surface of the peripheral steel wires, and a protective layer is arranged on the outer side of the peripheral steel wires;
the inner layer, the middle layer and the outer layer are thermoplastic plastic layers;
the first reinforcing layer is a cylindrical structure formed by spirally winding a first continuous fiber reinforced thermoplastic resin prepreg tape, and an included angle is formed between the first continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire;
the second reinforcing layer is of a cylindrical structure formed by spirally sleeving a second continuous fiber reinforced thermoplastic resin prepreg tape, and an included angle is formed between the second continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire.
2. The galvanized stranded wire according to claim 1, wherein the inner layer is provided with a reinforcing wire, and the reinforcing wire is formed by continuously twisting at least two steel wires.
3. The galvanized steel strand as claimed in claim 1, wherein an angle between the first continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire is 52-65 °; the included angle between the second continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire is 8-22 degrees.
4. The galvanized steel strand as claimed in claim 3, wherein an angle between the first continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire is 58 °; and the included angle between the second continuous fiber reinforced thermoplastic resin prepreg tape and the axial direction of the central steel wire is 17 degrees.
5. The galvanized stranded wire according to claim 1, wherein the continuous fibers contained in the first continuous fiber-reinforced thermoplastic resin prepreg tape are glass fibers; the continuous fiber contained in the second continuous fiber reinforced thermoplastic resin prepreg tape is aramid fiber.
6. The galvanized stranded wire of claim 1, wherein the inner layer is tightly wrapped on the peripheral steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920639377.XU CN210151473U (en) | 2019-05-07 | 2019-05-07 | Galvanized steel strand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920639377.XU CN210151473U (en) | 2019-05-07 | 2019-05-07 | Galvanized steel strand |
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| CN210151473U true CN210151473U (en) | 2020-03-17 |
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| CN201920639377.XU Active CN210151473U (en) | 2019-05-07 | 2019-05-07 | Galvanized steel strand |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093795A (en) * | 2019-05-07 | 2019-08-06 | 河北鸿宇通信器材有限公司 | A kind of galvanized strand wires and production method |
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2019
- 2019-05-07 CN CN201920639377.XU patent/CN210151473U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093795A (en) * | 2019-05-07 | 2019-08-06 | 河北鸿宇通信器材有限公司 | A kind of galvanized strand wires and production method |
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