Coil-strip-shaped automatic-magnetic-attraction free-stretching data cable in horizontal direction, and preparation method therefor and application thereof

Abstract

Disclosed in the present invention are a coil-strip-shaped automatic-magnetic-attraction free-stretching data cable in a horizontal direction, and a preparation method therefor and the application thereof. The data cable sequentially comprises, from inside to outside, an innermost flexible covered object, an intermediate flexible permanent-magnet magnetic cladding layer and an outermost flexible sheath layer, which are tightly connected. The preparation method therefor comprises the following steps: step A, performing extrusion molding; and step B, first, performing magnetization in a 180-degree constant magnetic field orientation in a north-south direction, so as to form a preliminary coil-strip-shaped structure in a horizontal direction, and then performing magnetization again to form a coil-strip-shaped automatic-magnetic-attraction free-stretching data cable in the horizontal direction. The present application is aimed at solving the problem in the prior art of insufficient automatic coiling and magnetic attraction of a data cable. By means of improving a magnetization mode, the present application makes a magnetization operation safe and reliable, and is environmentally friendly, human-health-friendly, easily implementable and mass-production-ready. The present application enables fuller utilization of the magnetic properties of a samarium-iron-nitrogen magnet, a magnetocrystalline anisotropy field of which significantly exceeds other permanent magnet materials, thereby making the data cable resistant to high temperature, corrosion and demagnetization, providing distinct advantages, and breaking through the limitation of relying on an increased magnetic layer thickness to meet attraction force requirements of the data cable.

Description

A horizontal steering wheel strip-shaped automatic magnetic free-stretching data cable and its preparation method and application Technical Field

[0001] The present invention belongs to the field of magnetic materials, and in particular relates to a horizontally directional strip-shaped automatic magnetically attracted freely stretchable data cable, a preparation method and an application thereof. Background Art

[0002] Application No. US10886587, electromagnetic insulated wire and its manufacturing method and equipment, which can effectively reduce electromagnetic noise induced in the conductor and have high flexibility. The application of magnetic materials in data cables of this technical solution utilizes its soft magnetic permeability to meet EMC requirements;

[0003] Application No. US14105515, a transmission cable with magnetic attraction, comprises: a tubular outer insulating sheath made of an electrically insulating material with a magnetic substance embedded therein; conductors, each conductor having an insulator axially inserted into the tubular outer insulating sheath; and a metal core surrounded by the insulator. Thus, the transmission cable can be repeatedly folded back and forth to form a bundle, so that the curved sections of the tubular outer insulating sheath can be fixed to each other or to a magnetically attractive wall by magnetic attraction. This technology discloses the technical effect of folding back and forth and magnetically fixing, but does not disclose sufficient technical means to support this effect.

[0004] Announcement No. CN113674921B, a method for preparing a magnetically attracted, automatically curling, and freely stretching data cable, discloses a method for preparing a magnetically attracted, automatically curling, and freely stretching data cable. This technical solution concentrates the magnetic attraction force on the end faces of the adjacent data cables in the vertical direction, allowing the data cables to maintain a curled magnetic attraction state and free stretching, successfully finding an industrial application case for samarium iron nitrogen magnetic powder. The application of magnetic materials on data cables in this technical solution utilizes its permanent magnetic material to meet the requirement of sufficient magnetic attraction force in the vertical direction. Once the data cable was launched on the market, it was welcomed by consumers in the market. However, the phenomenon of inadequate automatic curling and magnetic attraction of data cables on the market is common. How to make fuller and more clever use of magnetic attraction, safe magnetization, and avoid using more magnetic materials to meet magnetic attraction requirements; how to optimize the storage method and size, make the appearance more attractive, and better improve the user experience, is the unremitting pursuit of the production and research and development of magnetic applications of magnetic materials on data cables;

[0005] As shown in Table 6 of CN113674921B, the magnetocrystalline anisotropy field of SmFeN is much higher than that of other permanent magnet materials, reaching 14T, which is about twice that of Nd-Fe-B compounds. Further efforts are needed to solve the problem of saturation magnetization of SmFeN wire and fully utilize the magnetic properties of SmFeN.

[0006] The following is a supplementary description of the technical solution of this application:

[0007] Constant current electromagnetic magnetization: a constant current of direct current is passed through the coil to generate a constant magnetic field;

[0008] Pulse electromagnetic magnetization: a momentary pulse of high current is passed through the coil to generate a short-term ultra-strong magnetic field;

[0009] Permanent magnet magnetization: magnetization through the constant magnetic field generated by permanent magnets;

[0010] Softening and melting temperature: the softening and melting temperature of the magnetic layer or outer layer;

[0011] Flat data cable: one of the radial cross sections is a racetrack or square shape; the radial cross section of the circular data cable is a circle;

[0012] Single data line: When adjacent data lines are horizontally adsorbed or magnetized, it is a single-line operation, which is suitable for shorter data lines;

[0013] Folded data cable: Folded in the middle, when adjacent data cables are horizontally adsorbed or magnetized, the folded data cable is regarded as a single data cable, which is suitable for data cables with longer lengths. Summary of the Invention

[0014] A method for preparing a horizontally oriented, coil-shaped, automatically magnetically attracted, and freely stretchable data cable. The data cable comprises a flexible sheath at the core, a flexible permanent magnetic sheath in the middle, and a flexible outer sheath that are tightly connected in sequence from the inside out. The preparation method comprises the following steps: step A, extrusion molding; step B, pre-magnetizing a single data cable or a folded data cable through a 180° constant magnetic field orientation in a north-south direction to initially shape it into a horizontally oriented coil-shaped data cable; and re-magnetizing it to form a horizontally reversed coil-shaped, automatically magnetically attracted, and freely stretchable data cable.

[0015] The flexible covering on the core is a collection of flexible single wires such as power lines and data lines that realize various functions.

[0016] The outer flexible coating of the data line has a softening and melting point temperature 30°C to 140°C higher than that of the middle flexible permanent magnetic coating layer;

[0017] The first step is to magnetize the data line in a constant magnetic field of 180° in the north-south direction with a magnetic field strength of 5000Gs~2T. The single data line or the folded data line is pre-magnetized by the constant magnetic field orientation. At this time, the flexible permanent magnetic coating layer is at a softening and melting temperature. After the data line is cooled and shaped, it is initially shaped into a horizontal magnetic chuck strip.

[0018] Furthermore, the softening and melting temperature of the flexible permanent magnetic coating layer is 120-130°C;

[0019] Furthermore, the pre-magnetization is carried out in a 180° constant magnetic field orientation in the north-south direction, and a single data line or a folded data line is routed through the magnetic field at a speed of 10-120 m / min;

[0020] Furthermore, the constant magnetic field orientation of the north-south direction is 180°, and the normal direction of the parallel surface of the flat single data line or the folded data line is parallel to the magnetic field direction when passing through the constant magnetic field, and the thickness is magnetized; the radial direction of the circular data line is also the width direction, and one of the cross-sectional directions is parallel to the magnetic field direction;

[0021] Furthermore, the constant magnetic field is a constant current electromagnetic device or a permanent magnetic device set at or near the extrusion die, 180 degrees north-south from the extrusion production line, and the constant magnetic field area is larger than the diameter of the data line;

[0022] Furthermore, the area of ​​the constant magnetic field region, i.e., the area perpendicular to the magnetic field direction, is 1×10 cm or 2×2 cm.

[0023] The re-magnetization is to pull apart the initially shaped data line in the coil, and pass the single data line or the folded data line through a constant magnetic field of 180 degrees in the north-south direction, with a magnetic field of 2-3T, while maintaining the original magnetization direction. After re-magnetization, the data line becomes a horizontal coil and strip, and is automatically magnetically attracted and freely stretched.

[0024] In the re-magnetization, the normal direction of the parallel surface of the flat data line is parallel to the direction of the magnetic field, and the circular data line is magnetized during passive magnetic attraction and dynamic forward movement, which is consistent with the direction of the oriented magnetization magnetic field.

[0025] The softening melting point temperature of the flexible outer layer of the data line is 150°C to 260°C;

[0026] The flexible outer layer of the data cable is at least one of a polymer layer, a braided layer, a leather layer, and a decorative layer;

[0027] Furthermore, the polymer layer is a blend comprising: polypropylene with a softening point of 160-180°C, polytrifluorochloroethylene with a softening point of 200-220°C, polycarbonate with a softening point of 220-230°C, silicone rubber with a softening point of 200-250°C, polyphenylene sulfide-modified polypropylene with a softening point of 180-220°C, polyethylene terephthalate with a softening point of 250-260°C, thermoplastic polyurethane TPU with a softening point of 150-180°C, thermoplastic elastomer TPE with a softening point of 165-185°C, a plasticizer, and an additive.

[0028] The flexible permanent magnetic coating layer is a flexible modified polymer composite material layer with permanent magnetic material powder as filler;

[0029] Furthermore, the permanent magnetic material is at least one of anisotropic samarium iron nitride, isotropic or anisotropic ferrite, isotropic or anisotropic neodymium iron boron, cerium iron boron, and samarium cobalt;

[0030] Furthermore, the matrix component of the flexible permanent magnetic coating layer is a modified high molecular polymer obtained by blending thermoplastic elastomer TPE with plasticizer and additives, and the softening melting point is 50-150°C;

[0031] Furthermore, the modified polymer is a blend of at least one of oil-extended polyvinyl chloride with a softening point of 70-115°C, oil-extended chlorinated polyethylene with a softening point of 75-90°C, oil-extended EPDM with a softening point of 90-110°C, polyolefin elastomer with a softening point of 50-120°C, polyethylene with a density of 0.96 / cm3 with a softening point of 100-120°C, poly-1-butene with a softening point of 125-135°C, polyvinylidene chloride with a softening point of 115-140°C, thermoplastic vulcanizate TPV with a softening point of 100-150°C, low-temperature thermoplastic elastomer TPE with a softening point of 60-130°C, and thermoplastic polyurethane TPU with a softening point of 110-130°C, a plasticizer, and an additive.

[0032] A horizontally oriented strip-shaped automatic magnetically attracted freely stretchable data cable includes a cross-sectional shape that is one of the regular axially symmetrical shapes of circular, flat, and elliptical. The characteristic is that the data cable is obtained by the preparation method of a vertically oriented strip-shaped automatic magnetically attracted freely stretchable data cable described in any of the above items.

[0033] An application of a horizontal steering wheel strip-shaped automatic magnetic freely stretchable data cable, characterized in that the data cable is produced using the method for producing a vertical steering wheel strip-shaped automatic magnetic freely stretchable data cable described in any of the above items, and the data cable connector is one of a USB Type-C data connector, a Lightning data connector, and an audio data connector;

[0034] The front and rear connectors of the data cable are both located at the outer circle of the horizontal magnetic suction disc strip, and the data cable is in a folded shape. Beneficial effects

[0035] The magnetization method of this embodiment is universal for the magnetization of flexible wires;

[0036] In Examples 1 to 6, pre-charging with heating and orientation in a 0.8T constant magnetic field and then re-magnetizing in a 2.5T constant magnetic field are performed. This is a magnetization method designed for samarium iron nitride permanent magnets with an anisotropy field of 14T (approximately twice that of Nd-Fe-B compounds). High-voltage pulses are not required. High-performance sintered NdFeB permanent magnets can meet the pre-charging and re-charging magnetic field requirements. The magnetization operation of this technical solution is safe and reliable, environmentally friendly and human-friendly, easy to implement and mass-produce, and is also suitable for permanent magnets and soft magnetic materials with other properties.

[0037] Surface magnetic increases with the thickness of the magnetic layer, the magnetization method of this embodiment, so that the full utilization of the magnetic properties of samarium iron nitrogen can be improved, breaking through the thickness alone to enhance the surface magnetic method;

[0038] This magnetization method further solves the magnetization problem in the use of SmFeN wires. Based on the material properties of SmFeN itself: Curie temperature as high as 476℃ and high intrinsic coercivity, the data cable has excellent corrosion resistance, processability, and anti-demagnetization ability.

[0039] This technical solution can also be expanded to various wires such as power cables, audio cables, video cables, network cables, etc., and has universality;

[0040] The horizontal steering wheel bar of the folded data cable is magnetically attracted so that the connectors are on the periphery of the horizontal bar, which is convenient for use.

[0041] The following further illustrates the technical solution of the present application in conjunction with the accompanying drawings and specific implementation methods, and the technical solution and beneficial effects will be clearer. The enumeration and legends of parameters related to the magnetic field size and size are not limitations on the technical solution of the present application. Any non-creative additions, equivalent substitutions, and recombinations will fall within the scope of protection of the technical solution of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic diagram of the appearance of a horizontally oriented, strip-shaped, automatic magnetic, free-stretching data cable for implementations 1 to 4 of this technical solution. The arrow in the figure indicates the magnetization direction parallel to the surface normal. The surface magnetic field is greatest in front of and behind the arrow. The cross-section is runway-shaped and the outer sheath is braided.

[0043] Figure 2 shows one of the schematic diagrams of a horizontally oriented, strip-shaped, automatic magnetic, free-stretching data cable for Examples 5 and 6 of this technical solution and Comparative Examples 1 and 2. The arrow in the figure indicates the direction of magnetic attraction, with maximum surface magnetism, a square cross-section, and a polymer outer layer.

[0044] Figure 3 is a schematic diagram of a horizontally oriented, strip-shaped, automatically magnetically attracted, freely stretchable data cable in the width direction of this technical solution. In the figure, 100 is the outer layer, 200 is the magnetic layer, and 300 is the flexible sheath. Given the different actual data cables, the sheath flexibility, the number of core wires, the arrangement, and the wire diameter, the magnetic layer thickness is not as uneven as shown in 200. The measured magnetic layer thickness is recorded as an average value, while the surface magnetism is a range value, the size of which truly reflects the final effect of the magnetic layer thickness.

[0045] Figure 4 is a schematic diagram of the appearance of a horizontally oriented, coil-shaped, automatically magnetically attracted, freely stretchable data cable. The cable is folded, with the connectors at both ends located on the outer periphery of the coil.

[0046] Figure 5 is a flow chart of the process for preparing horizontal steering wheel strip data lines according to this technical solution. DETAILED DESCRIPTION

[0047] 1-3 , a method for preparing a horizontally oriented strip-shaped automatic magnetically attracted freely stretchable data cable is shown. The data cable comprises, from the inside out, a tightly connected flexible sheath at the core, a flexible permanent magnetic sheath in the middle, and a flexible outer sheath. The preparation method is shown in FIG5 , a process flow chart for preparing a horizontally oriented strip-shaped data cable according to the present technical solution.

[0048] Extrusion molding: the flexible permanent magnetic coating layer in the middle of the data cable is co-extruded with the flexible outer layer or extruded in sequence; or: the flexible permanent magnetic coating layer in the middle of the data cable is extruded and then a braided outer layer is added; both of which cover the core layer at the same time;

[0049] First, magnetize the data line in a constant magnetic field orientation of 180° in the north-south direction. Pre-magnetize the single data line or folded data line through the constant magnetic field orientation. At this time, the magnetic layer is at a softening and melting temperature of 120-130°C and the magnetic field strength is 8000Gs. After the data line is cooled and shaped, it is initially shaped into a horizontal magnetic chuck strip. The flexible outer layer of the data line has a softening and melting point at least 40-140°C higher than the softening and melting point of the flexible permanent magnetic coating layer in the middle. One of the routing speeds of the single data line or folded data line through the constant magnetic field is 90 meters per minute. The constant magnetic field is a constant current electromagnetic or permanent magnetic device set in the north-south direction at the extrusion die. One of the constant magnetic field areas is 2×2 cm, which is larger than the diameter of the data line. The normal direction of the parallel surface of the flat data line is parallel to the magnetic field direction. The thickness is magnetized, and one of the radial cross-sections of the circular data line is parallel to the magnetic field direction.

[0050] After magnetization, the data line in the initial coil shape is pulled apart, and a single data line or a folded data line is passed through a constant magnetic field with a magnetic field strength of 2.5T. The normal direction of the parallel surface of the flat data line is parallel to the direction of the magnetic field, and the thickness is magnetized; the circular data line is magnetized while being passively attracted and dynamically moving forward, maintaining the original magnetization direction. After magnetization, the data line continues to maintain the horizontal coil shape; the relevant parameters and magnetization results of the embodiment and comparative example are recorded in Tables 1 and 2.

[0051]

[0052]

[0053] In the embodiment, the radial shapes of the data cables are respectively a racetrack and a square, and the outer layers are respectively a braided layer and a modified PP; the permanent magnetic material of the magnetic layer is respectively R450: 40% anisotropic ferrite + anisotropic samarium iron nitrogen, R750: 100% anisotropic samarium iron nitrogen, powder, and the pellet shape is approximately spherical; the matrix component is a mixture of CPE with at least one of POE and EVA, a plasticizer, and an additive, and the softening and melting temperature is 120-130 ° C;

[0054] The softening and melting temperature of the outer layer is greater than 160~260°C, which is 40~140°C or higher than the magnetic layer. The modified PP is the flexible outer layer on the outside, and the softening and melting point temperature is 160-260°C. It is a modified mixture of polypropylene PP and at least one of EPDM, PPS, PVC, silica gel, plasticizer and additives.

[0055] In comparative example 1, because the softening and melting point of the outer layer is the same as that of the magnetic material layer, it is impossible to complete the constant magnetic field orientation pre-magnetization at the softening and melting temperature of the magnetic layer, and the data line will be deformed; in comparative example 2, no pre-magnetization is adopted, and the surface magnetism cannot be improved.

[0056] Example result record:

[0057] Table 2, Examples 1-6 of the present technical solution, first 0.8T orientation + 2.5T magnetization in a constant magnetic field, and then magnetization in a constant current field of only 2.5T, the surface magnetization can well meet the function of automatic coiling and free stretching of the data cable;

[0058] Table 2, Examples 1, 4, and 5 contain 40% samarium iron nitride material, and Examples 2, 3, and 6 contain 100% samarium iron nitride material. Although the anisotropic field of samarium iron nitride reaches 14T, the magnetization of this technical solution makes its surface magnetism still well meet the needs of automatic curling and free stretching of the data line, avoiding the need to meet the suction requirement by thickening the magnetic layer; Comparative Examples 1 and 2 do not use constant magnetic field orientation magnetization, the surface magnetism cannot be improved, the magnetic properties of magnetic materials such as samarium iron nitride cannot be fully exerted, and the final horizontal coil shape and adsorption are not ideal.

[0059] 4 , an application of a horizontally oriented coil-shaped automatic magnetic freely stretchable data cable is shown. When the data cable is folded, the front and rear interfaces are located on the outer circle of the horizontal coil, which is convenient for use.

[0060] analyze

[0061] The oriented pre-magnetization method of the technical solution of this application uses a constant magnetic field and speed control to give the magnetic domains enough time to rotate, that is, the magnetization saturation is improved by increasing the magnetic field strength in exchange for extending the duration of the magnetic material in the magnetic field;

[0062] The design of the magnetic layer softening melting temperature of 120-130℃ enables the magnetic material to achieve the best energy-saving equilibrium state in the rotation and disorder of magnetic domains during the melting state and cooling process, thereby maximizing the rotation and maintenance of magnetic domains of homosexual or heterosexual materials.

[0063] The data line is pre-magnetized and shaped in a constant magnetic field, and then magnetized again, making it difficult to keep the directions of the two consistent. The technical solution of this application uses a single data line or a folded data line pulled apart from a coil, and a circular data line is passively magnetically attracted and dynamically rotated in a constant current field. The flat data line is positioned by two relatively parallel surfaces to ensure the consistency of the magnetic field directions of the two.

[0064] The different softening and melting points of the structural layer materials ensure that the data line can maintain its shape when the magnetic layer is molten, achieving the simultaneous satisfaction of the low resistance of the molten magnetic domain and the shape of the data line;

[0065] The folded data cable is treated as a single data cable with the same magnetization operation, so that when a longer data cable is used, the front and rear interface ends are located at the outer circle of the horizontal steering bar, which is convenient for use.

Claims

1. A preparation method of a horizontally-steering-wheel-strip-shaped automatic magnetic-absorbing and freely-stretchable data cable, characterized in that The data line includes a flexible coating inside the core, a flexible permanent magnetic coating in the middle, and a flexible outer coating outside, which are tightly connected in sequence from the inside out. Its preparation method includes the following steps: Step A, extrusion molding; Step B, magnetize with a constant magnetic field of 180° in the north-south direction first, initially shape it into a horizontal steering wheel strip, then magnetize again to form a horizontally reverse steering wheel strip and automatically magnetically attract and freely stretch the data line.

2. The preparation method of a horizontally-oriented steering wheel strip-shaped automatic magnetic attraction free-stretching data cable according to claim 1, characterized in that, For the magnetization with a constant magnetic field of 180° in the north-south direction, the magnetic field intensity is 5000 Gs to 2.0 T. A single data line or a folded data line is pre-magnetized through a constant magnetic field orientation. At this time, the flexible permanent magnetic coating is at the softening and melting temperature. After the data line is cooled and shaped, it is initially shaped into a horizontal magnetic suction steering wheel strip.

3. The preparation method of a horizontally-steering-wheel strip-shaped automatic magnetic-attraction freely stretchable data cable according to any one of claims 1 or 2, characterized in that, The softening and melting temperature of the flexible permanent magnetic coating is 120 - 130 °C.

4. The preparation method of a horizontally-steered strip-shaped automatic magnetic-attraction freely stretchable data cable according to any one of claims 1 or 2, characterized in that, The softening and melting point temperature of the flexible outer coating outside the data line is at least 30 °C to 140 °C higher than that of the flexible permanent magnetic coating in the middle.

5. The preparation method of a horizontally-oriented steering wheel strip-shaped automatic magnetic attraction free-stretching data cable according to claim 2, characterized in that, For the magnetization with a constant magnetic field of 180° in the north-south direction, one of the wire speeds is 10 - 120 m / min.

6. The preparation method of a horizontally-steered strip-shaped automatic magnetic adsorption free-stretching data cable according to claim 2, characterized in that, For the magnetization with a constant magnetic field of 180° in the north-south direction, when a flat single data line or a folded data line passes through the constant magnetic field, the normal direction of the parallel plane is parallel to the magnetic field direction, and the thickness is magnetized; for a circular data line, the radial cross-section is parallel to the magnetic field direction.

7. The preparation method of a horizontally-steered strip-shaped automatic magnetic attraction free-stretching data cable according to any one of claims 1 or 2, characterized in that, The constant magnetic field is a 180° constant current electromagnetic device or a permanent magnetic device in the north-south direction set at the extrusion die orifice, near the die orifice, or away from the extrusion production line. The constant magnetic field area is larger than the diameter of the data line.

8. The preparation method of a horizontally-steering-wheel strip-shaped automatic magnetic-attraction free-stretching data cable according to claim 1, characterized in that, For the re-magnetization, stretch the initially shaped data line in a steering wheel strip. A single data line or a folded data line passes through a constant magnetic field of 180° in the north-south direction, the magnetic field magnitude is 2 - 3 T, maintaining the original magnetization direction. After re-magnetization, the data line becomes a horizontally reverse steering wheel strip and automatically magnetically attracts and freely stretches the data line.

9. The preparation method of a horizontally-steered strip-shaped automatically magnetically-attracted freely stretchable data cable according to any one of claims 1 or 8, characterized in that, For the re-magnetization, the normal direction of the parallel plane of the flat data line is parallel to the magnetic field direction, and the circular data line is magnetized during the passive magnetic attraction and dynamic forward movement, which is consistent with the magnetization direction of the orientation magnetization.

10. The preparation method of a horizontally - directed steering - wheel - shaped strip - type automatically magnetically - attracted and freely - stretchable data cable according to claim 1, characterized in that, The softening and melting point temperature of the flexible outer coating outside the data line is 150 °C to 260 °C.

11. The preparation method of a horizontal steering wheel strip-shaped automatic magnetic adsorption free-stretching data cable according to claim 1, characterized in that, The flexible outer coating outside the data line is at least one of a polymer layer, a woven layer, a leather layer, and a decorative layer.

12. The preparation method of a horizontally-steering-wheel strip-shaped automatic magnetic attraction free-stretching data cable according to claim 1, characterized in that, The flexible permanent magnetic coating is a flexible modified polymer composite layer filled with permanent magnetic material powder.

13. The preparation method of a horizontally - steering - wheel - strip - shaped automatic magnetic - attraction free - stretching data cable according to claim 12, characterized in that, The permanent magnetic material is at least one of anisotropic samarium iron nitride, isotropic or anisotropic ferrite, isotropic or anisotropic neodymium iron boron, cerium iron boron, and samarium cobalt.

14. The preparation method of a horizontally-oriented steering wheel strip-shaped automatic magnetic adsorption and freely stretchable data cable according to claim 12, characterized in that, The matrix component of the flexible permanent magnetic coating is a modified polymer processed by blending a thermoplastic elastomer TPE with a plasticizer and additives, and the softening and melting point is 50 - 150 °C.

15. A horizontally-steered strip-shaped automatic magnetic-attraction freely stretchable data cable, including one of the axisymmetric regular shapes with a circular, flat or oval cross-section, or any irregular shape, characterized in that, The data line is prepared by the preparation method of a horizontally steering wheel strip and automatically magnetically attracting and freely stretching data line according to any one of claims 1 to 14.

16. Application of a horizontally - oriented steering - wheel - shaped strip - type automatically magnetic - attracting and freely - stretchable data cable, characterized by: The data cable is a horizontally-steering-wheel strip-shaped automatic magnetic-attraction free-stretching data cable as described in claim 15, and the data cable connector is one of a USB type-c data connector, a lightning data connector, and an audio data connector.

17. The application of a horizontally-oriented steering wheel strip-shaped automatic magnetic adsorption and freely stretchable data cable according to claim 16, characterized in that, The positions of the front and rear connectors of the data cable are both at the outer circle of the horizontal magnetic suction strip, and the data cable is in a folded shape.

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