NPR steel wire structure with reliable protection performance
By setting up a multi-layered protective structure on NPR steel wire, including a protective layer, a wrapping layer, and filling material, the problem of easy corrosion of NPR steel wire is solved, achieving long-term effective protection and ensuring that its mechanical properties are not affected.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-31
AI Technical Summary
NPR steel wire is prone to corrosion, and existing anti-corrosion methods cannot provide long-term effective protection, affecting its mechanical properties and safety in use.
The NPR steel wire is protected by a multi-layer protective structure, including a protective layer, a wrapping layer, and a filling material. The protective layer can be made of epoxy resin, HDEP, or polyurea. The filling material can be anti-corrosion grease, epoxy resin, polyurethane, etc., and the wrapping layer can be made of nylon, rubber, or plastic.
Without affecting the mechanical properties of NPR steel wire, its corrosion resistance is significantly improved, its service life is extended, multiple protections are provided, and safety is ensured.
Smart Images
Figure CN224063161U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to a steel wire structure, in particular to an NPR steel wire structure with reliable protection performance, and belongs to the technical field of metal material corrosion prevention. BACKGROUND
[0002] NPR (Negative Poisson's Ratio) steel wire is a new type of high-performance material. Due to the unique negative Poisson's ratio effect, this characteristic different from traditional materials endows NPR steel wire with excellent mechanical properties, such as high strength, high toughness and good energy absorption capacity. Poisson's ratio refers to the ratio of the absolute value of the transverse normal strain to the axial normal strain when a material is subjected to uniaxial tension or compression, also known as the transverse deformation coefficient. It is an elastic constant that reflects the transverse deformation of the material. Ordinary steel is isotropic material, that is, the Poisson's ratio of ordinary steel is positive, that is, the Poisson's ratio of ordinary steel is between 0.2 and 0.4. However, the Poisson's ratio of NPR steel wire is different from that of ordinary steel, so NPR steel wire has excellent properties of super-high constant resistance, super-large elongation and impact resistance and energy absorption. It is a good material for making steel wire and steel strand, and has great application potential.
[0003] However, in actual application process, the corrosion problem of NPR steel wire seriously limits its wide application and service life. NPR steel wire is prone to corrosion. Once the NPR steel wire is corroded, its mechanical properties will decrease sharply, which will affect the stability and carrying capacity, and is likely to cause serious safety accidents. At present, the corrosion prevention methods for metal materials, such as conventional electroplating, hot-dip galvanizing and organic coating, have obvious shortcomings when applied to NPR steel wire. Although the electroplating layer can isolate air and moisture to a certain extent, the electroplating process may affect the internal structure of NPR steel wire, thereby reducing its unique mechanical properties. The hot-dip galvanizing layer is thick, which will increase the weight of NPR steel wire, and is not suitable for application scenarios with strict requirements on weight. In addition, the galvanized layer is prone to cracking under complex stress of the steel wire, which leads to the penetration of corrosive medium and cannot provide long-term and effective protection for the NPR steel wire. Therefore, it is urgent to develop an NPR steel wire structure with reliable protection performance which can effectively improve the corrosion resistance of NPR steel wire without affecting its unique mechanical properties. This is of great significance to expand the application field of NPR steel wire and improve its use safety and reliability. SUMMARY
[0004] The purpose of this application is to address the shortcomings of existing NPR steel wires, which are prone to corrosion and whose mechanical properties are severely affected once corrosion occurs. Traditional anti-corrosion methods applied to NPR steel wires have obvious deficiencies and cannot provide long-term effective protection. This application provides an NPR steel wire structure with reliable protective performance that is reasonably structured, easy to manufacture and install, and can provide multiple protections without affecting the mechanical properties of NPR steel wires.
[0005] To achieve the objectives of the above application, the technical solution of this application is: an NPR steel wire structure with reliable protective performance, comprising a steel wire structure, wherein the steel wire structure is composed of a single NPR steel wire, or the steel strand structure is composed of multiple NPR steel wires, wherein the surface of a single NPR steel wire is provided with a protective layer of the same material or multiple protective layers of different materials, and the outer surface of the multiple NPR steel wire structure is provided with one or more protective layers and / or wrapping layers.
[0006] Furthermore, the gaps between adjacent wires in the wire structure composed of multiple NPR wires, as well as the gaps between the NPR wires and the protective layer or wrapping layer, are filled with a filling material.
[0007] Furthermore, the NPR steel wire is first made into a single protective steel wire with a protective layer on the surface, and then multiple steel wires with protective layers are made into a composite steel strand, or the loose strands of the steel strand are made into a protective layer and then composited into a steel strand.
[0008] Furthermore, the multi-strand NPR steel wire structure is formed by twisting multiple NPR steel wires together to form a steel strand, and a protective layer is then applied to the surface of the steel strand as a whole.
[0009] Furthermore, the protective layer is an epoxy resin protective layer, an HDEP protective layer, or a polyurea protective layer. The protective layer may also be made of polyurethane, rubber, plastic, or other materials that provide isolation and corrosion protection.
[0010] Furthermore, the filler material is made of one or more of the following: anti-corrosion grease, epoxy resin, polyurea, polyurethane, polytetrafluoroethylene, wax, and rubber and rubber products.
[0011] Furthermore, the coating layer is made of nylon, rubber, plastic or HDPE material into a strip, and can also be formed by hot extrusion or spraying of one or more of the above materials.
[0012] Furthermore, the wrapping layer tightly covers the outer surface of the protective layer or NPR wire.
[0013] The beneficial effects of this application are:
[0014] 1. This application adopts a multi-layer protective structure to provide all-round protection for NPR steel wire, and can set up a protective structure through protective layers, wrapping layers and filling materials as needed, achieving a very good anti-corrosion effect and providing long-term effective protection for NPR steel wire.
[0015] 2. This application has a reasonable structure, which facilitates production, manufacturing, installation and use. It can provide multiple protections without affecting the mechanical properties of NPR steel wire, has good anti-corrosion performance and a long service life. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the first embodiment of a single NPR steel wire in this application.
[0017] Figure 2 This is a schematic diagram of the second embodiment of a single NPR steel wire in this application.
[0018] Figure 3 This is a structural schematic diagram of the third embodiment of a single NPR steel wire in this application.
[0019] Figure 4 This is a schematic diagram of the structure of the first embodiment of the multiple NPR steel wires in this application.
[0020] Figure 5 This is a schematic diagram of the second embodiment of the multiple NPR steel wires in this application.
[0021] Figure 6 This is a structural schematic diagram of the third embodiment of the multiple NPR steel wires in this application.
[0022] Figure 7 This is a structural schematic diagram of the fourth embodiment of the multiple NPR steel wires in this application.
[0023] Figure 8 This is a schematic diagram of the multi-layer protective structure used for multiple NPR steel wires in this application.
[0024] In the diagram: NPR steel wire 1, protective layer 2, wrapping layer 3, filler material 4, epoxy resin protective layer 5, anti-corrosion grease 6, HDEP protective layer 7, polyurea protective layer 8. Detailed Implementation
[0025] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] See Figures 1 to 8This application discloses an NPR steel wire structure with reliable protective performance, comprising a steel wire structure, characterized in that: the steel wire structure is composed of a single NPR steel wire 1, or the steel wire structure is composed of multiple NPR steel wires 1, the surface of the single NPR steel wire 1 is provided with a protective layer 2 of the same material or multiple protective layers 2 of different materials, and the outer surface of the steel wire structure composed of multiple NPR steel wires 1 is provided with one or more protective layers 2 and / or wrapping layers 3.
[0027] The gaps between adjacent wires in the wire structure composed of multiple NPR wires 1, as well as the gaps between the NPR wires 1 and the protective layer 2 or wrapping layer 3, are filled with a filling material 4.
[0028] The NPR steel wire 1 is first made into a single protective steel wire with a protective layer 2 on the surface, and then multiple steel wires with protective layers are made into a composite steel strand, or the loose strands of the steel strand are made into a composite steel strand after the protective layer 2 is set.
[0029] The NPR steel wire 1 is first made into a steel strand by twisting together multiple NPR steel wires 1, and then a protective layer 2 is applied to the surface of the steel strand.
[0030] The protective layer 2 is an epoxy resin protective layer 5, an HDEP protective layer 7, or a polyurea protective layer 8. The protective layer 2 can also be made of polyurethane, rubber, plastic, or other materials that provide isolation and corrosion protection.
[0031] The filler material 4 is made of one or more of the following: anti-corrosion grease 6, epoxy resin, polyurea, polyurethane, polytetrafluoroethylene, wax, and rubber and its products.
[0032] The wrapping layer 3 is made of nylon, rubber, plastic or HDPE material into a strip, and can also be formed by hot extrusion or spraying of one or more of the above materials.
[0033] The wrapping layer 3 tightly covers the outer surface of the protective layer 2 or the NPR wire 1.
[0034] Referring to the accompanying drawings, this application employs a multi-layered protective structure to provide all-around protection for the NPR steel wire, significantly enhancing its corrosion resistance and providing excellent corrosion protection without compromising the mechanical properties of the NPR steel wire. The specific structure and principle are as follows:
[0035] NPR steel wire structures can be formed from a single NPR steel wire 1, or from multiple NPR steel wires 1 twisted and spliced together to form a steel strand. They can also be composed of multiple parallel NPR steel wires 1. In short, their formation method is the same as that of traditional ordinary steel wire. The protection of NPR steel wire structures primarily relies on the protection provided by the steel wire structure composed of multiple NPR steel wires 1. The surface of a single NPR steel wire 1 is provided with one layer of the same material or multiple layers of different materials 2. These protective layers 2 effectively cover or wrap the surface of the NPR steel wire 1, preventing corrosion from external factors such as water and air.
[0036] The protection provided by a steel wire structure composed of multiple NPR steel wires 1 can take many forms, mainly achieving scientific and effective protection through protective layers, wrapping layers, and filling materials. The main implementation methods are as follows:
[0037] Implementation method 1: A protective layer 2 is provided on the outer surface of the steel wire structure composed of multiple NPR steel wires, which wraps the multiple NPR steel wires inside.
[0038] Implementation Method 2: First, NPR steel wire 1 is made into a single protective steel wire with a protective layer 2 on the surface. Then, multiple steel wires with protective layers are made into a composite steel strand, and a protective layer 2 is set on the outer surface of the composite steel strand.
[0039] Implementation Method 3: NPR steel wire 1 is first made into a single protective steel wire with a protective layer 2 on the surface, and then multiple steel wires with protective layers are made into a composite steel strand, and multiple protective layers 2 are set on the outer surface of the composite steel strand.
[0040] Implementation method 4: A wrapping layer 3 is provided on the outer surface of the wire structure composed of multiple NPR wires, which wraps the multiple NPR wires inside.
[0041] Implementation Method 5: Based on Implementation Method 1, 2 or 3, a wrapping layer 3 is provided on the outer surface of the outermost protective layer 2.
[0042] Implementation method six: Based on any one of implementation methods two to seven, the gaps between adjacent steel wires and the gaps between NPR steel wire 1 and the protective layer 2 or wrapping layer 3 located on the outer surface of the composite steel strand are filled with filling material 4.
[0043] In addition, the protective layer 2, the wrapping layer 3, and the filling material 4 can be selectively set according to the diameter, quantity, and protection level of the NPR steel wire, and are not limited to the above-described embodiments.
[0044] In addition, protective layer 2 is an epoxy resin protective layer 5, an HDEP protective layer 7, or a polyurea protective layer 8. Protective layer 2 can also be made of organic materials containing polyurethane, rubber, plastic, or other materials that provide isolation and corrosion protection. Filler material 4 is one or more mixtures of anti-corrosion grease 6, epoxy resin, polyurea, polyurethane, and rubber materials. Coating layer 3 is a strip material made of nylon, rubber, plastic, or HDPE materials. Coating layer 3 can also be formed by thermal extrusion or spraying of one or more of the above materials. Coating layer 3 tightly covers the outer surface of protective layer 2 or NPR steel wire 1.
[0045] Before setting the protective structure on NPR steel wire 1, the NPR steel wire 1 needs to undergo cleaning, drying, preheating, protective treatment, heat curing, cooling, re-twisting into bundles, and coiling. Among these processes, the cleaning process requires the addition of acid for ultrasonic cleaning to promote the cleaning effect and ensure the reliable adhesion of the protective structure.
[0046] The above description is a further detailed explanation of this application in conjunction with specific embodiments. It should not be considered that the specific implementation of this application is limited to these descriptions. For those skilled in the art, there will be various simple substitutions, improvements and changes to this application without departing from the concept of this application. All such simple substitutions, improvements and changes should be considered to fall within the protection scope of this application.
Claims
1. A NPR steel cord structure with reliable safeguarding properties, comprising a steel cord structure, characterized in that: The steel wire structure is composed of a single NPR steel wire (1), or the steel wire structure is composed of a plurality of NPR steel wires (1), the surface of the single NPR steel wire (1) is provided with a protective layer (2) of the same material or a plurality of protective layers (2) of different materials, and the outer surface of the plurality of NPR steel wire structures is provided with one or more protective layers (2) and / or wrapping layers (3).
2. The NPR steel wire structure with reliable protection performance according to claim 1, characterized in that: The gap between adjacent steel wires of the steel wire structure composed of a plurality of NPR steel wires (1) and the gap between the NPR steel wire (1) and the protective layer (2) or the wrapping layer (3) are filled with a filling material (4).
3. The NPR steel wire structure with reliable protection performance according to claim 1, characterized in that: The NPR steel wire (1) is first made into a single protective steel wire with a protective layer (2) on the surface, and then a plurality of steel wires with protective layers are made into a composite steel strand, or the protective layer (2) is set after the steel strand is dispersed and then the steel strand is composed.
4. The NPR steel wire structure with reliable protection performance according to claim 1, characterized in that: The multi-strand NPR steel wire structure is composed of a plurality of NPR steel wires (1) twisted and combined to form a steel strand, and then a protective layer (2) is provided on the surface of the steel strand.
5. The NPR steel wire structure with reliable protection performance according to claim 1, characterized in that: The protective layer (2) is an epoxy protective layer (5), an HDEP protective layer (7), or a polyurea protective layer (8), and the protective layer (2) can also be made of materials containing polyurethane, rubber, plastic, or materials that play an isolation and corrosion prevention role.
6. The NPR steel wire structure with reliable protection performance according to claim 2, characterized in that: The filling material (4) is made of one or more mixtures of anti-corrosion grease (6), epoxy resin, polyurea, polyurethane, polytetrafluoroethylene, wax, and rubber and their product materials.
7. The NPR steel wire structure with reliable protection performance according to claim 1, characterized in that: The wrapping layer (3) is made of nylon, rubber, plastic, or HDPE material into a strip-shaped material, and one or more of the above materials can also be used to form the wrapping layer (3) by hot extrusion or spraying.
8. The NPR steel wire structure with reliable protection performance according to claim 1, characterized in that: The wrapping layer (3) tightly covers the outer surface of the protective layer (2) or the NPR steel wire (1).