阅读说明：本技术 一种柔性金属丝线及其制备方法 (Flexible metal wire and preparation method thereof ) 是由 杨武保 于 2020-05-11 设计创作，主要内容包括：本发明公开了一种柔性金属丝线,其特征在于,所述柔性金属丝线由微米级的金属环相互连接而成；本发明还公开了柔性金属丝线的制备方法。本发明的柔性金属丝线,既保持了传统高分子柔性线材所具有的柔顺性,又具有金属材料所特有的耐刺耐割性,解决了传统柔性线材强度、抗冲击、耐热、导电等性能差的问题,为制造具有卓越防御抗刀刺、冲击的衣物等提供强有力的保证。(The invention discloses a flexible metal wire which is characterized in that the flexible metal wire is formed by mutually connecting micron-sized metal rings; the invention also discloses a preparation method of the flexible metal wire. The flexible metal wire disclosed by the invention not only maintains the flexibility of the traditional high-molecular flexible wire, but also has the special puncture and cut resistance of a metal material, solves the problem of poor performances of the traditional flexible wire such as strength, impact resistance, heat resistance, electric conductivity and the like, and provides a powerful guarantee for manufacturing clothes with excellent knife-stab and impact resistance.)

1. A flexible metal wire is characterized in that the flexible metal wire is formed by connecting micron-sized metal rings.

2. The flexible metal wire as claimed in claim 1, wherein the inner diameter of the metal ring is 0.2 to 200 μm, and the wire diameter of the flexible metal wire is 0.4 to 400 μm.

3. The flexible metal wire as claimed in claim 1, wherein the shape of the metal loop is circular, elliptical, triangular, quadrilateral, pentagonal and/or other polygonal shapes.

4. The flexible metal wire according to claim 1, wherein each of the metal rings is formed of a thin metal wire forming a closed metal loop, and the thin metal wire has a diameter of 0.1 to 100 μm.

5. A flexible metal wire according to claim 1, wherein said metal loops are formed by full metal bonding and/or mechanical contact end to end.

6. Flexible metal wire according to any one of claims 1 to 5, characterized in that the raw material constituting the metal loop is a single metal material and/or a different metal material.

7. A flexible metal wire according to claim 6, wherein the connections between said metal loops formed of different metal materials are randomly arranged according to requirements.

8. Flexible metal wire according to any one of claims 1 to 5, wherein a material of other composition is added during the working process and/or at the surface post-treatment.

9. A method of preparing a 3D printing of flexible metal wire according to any one of claims 1 to 8, characterized in that it comprises the following steps:

a. adopting micro-nano metal powder as a raw material;

b. adopting an electron beam, a laser beam or a plasma beam as a heat source;

c. forming a graphic file of the flexible metal wire by adopting computer-aided design;

d. converting the graphic file of the flexible metal wire into a 3D printing file by adopting 3D printing slicing software;

e. and starting 3D printing software to run, and finishing the preparation of the flexible metal wire by the 3D printing method.

10. A method for making a flexible metal wire according to any one of claims 1 to 8, characterized in that it comprises the following steps:

a. adopting a conventional metal wire with a micro-nano wire diameter as a raw material;

b. adopting a bending, shearing and welding machine with micro-nano processing capacity to pay off, bend, shear and weld the conventional metal wire with the micro-nano wire diameter;

c. completing the preparation of the flexible metal wire.

11. A method of manufacturing a flexible metal wire according to claim 10, wherein a bonding process is used instead of the welding process.

Technical Field

The invention belongs to the field of advanced manufacturing, and particularly relates to a flexible metal wire and a preparation method thereof.

Background

The soft wire is a core raw material or an intermediate material in modern manufacturing industry, particularly textile industry, and is a key base material which cannot be replaced in the aspects of production, processing and application of clothes, bedding and clothing, packages, tents, fabrics and the like.

Generally, the flexible wire is basically made of an organic polymer material, and is processed from cotton, cellulose, an organic polymer material, and the like as a raw material. However, the flexible wire made of these organic polymer materials generally has poor strength and poor tear resistance, and has performance defects that are difficult to overcome in terms of impact resistance, heat resistance, conductivity, dyeing and other properties.

Metals such as Fe, Cu, Al and the like are hot-drawn and cold-drawn to obtain large-scale metal wires and are core materials in the industrial fields of buildings, cables and the like. However, in the conventional metal deformation process, irreversible plastic deformation is inevitably generated, and the shape memory alloy metal has huge rebound stress after deformation, so that the change and the maintenance of any shape cannot be obtained.

The heat-conducting wire has the advantages of strength, heat conduction, impact resistance, corrosion resistance, beautiful color and the like of metal materials, has the flexibility of common high-molecular flexible wires, and is an urgent need for advanced flexible wires in the next generation of clothing, fabrics and related industries.

Disclosure of Invention

The invention aims to provide a flexible metal wire and a preparation method thereof, and solves the problem that the traditional flexible wire is poor in strength, impact resistance, heat resistance, conductivity and other properties.

In order to solve the above problems, an aspect of the present invention provides a flexible metal wire formed by connecting micro-sized metal rings to each other.

Preferably, the inner diameter of the metal ring is 0.2-200 μm, and the wire diameter of the flexible metal wire is 0.4-400 μm.

Preferably, the shape of the metal ring is circular, oval, triangular, quadrilateral, pentagonal and/or other polygonal shapes.

Preferably, each of the metal rings is formed by a metal closed loop formed by a thin metal wire having a diameter of 0.1 to 100 μm.

Preferably, the metal rings are formed by full metal bond bonding and/or mechanical contact.

Preferably, the raw material constituting the metal ring is a single metal material and/or a different metal material.

Preferably, the connections between the metal rings formed of different metal materials are arranged arbitrarily according to requirements.

Preferably, the flexible metal wire is provided with materials of other components during the processing and/or surface post-treatment.

According to a second aspect of the present invention, there is provided a method of preparing flexible metal wire 3D printing, the method comprising the steps of:

a. adopting micro-nano metal powder as a raw material;

b. adopting an electron beam, a laser beam or a plasma beam as a heat source;

c. forming a graphic file of the flexible metal wire by adopting computer-aided design;

d. converting the graphic file of the flexible metal wire into a 3D printing file by adopting 3D printing slicing software;

e. and starting 3D printing software to run, and finishing the preparation of the flexible metal wire by the 3D printing method.

According to a third aspect of the present invention, there is provided a method of making a flexible metal wire, the method comprising the steps of:

a. adopting a conventional metal wire with a micro-nano wire diameter as a raw material;

b. adopting a bending, shearing and welding machine with micro-nano processing capacity to pay off, bend, shear and weld the conventional metal wire with the micro-nano wire diameter;

c. completing the preparation of the flexible metal wire.

Preferably, a bonding process is used instead of the welding process.

Compared with the prior art, the invention has the beneficial effects that: the flexible metal wire disclosed by the invention not only keeps the flexibility of the wire processed from conventional cotton, fiber, artificial polymer materials and the like, but also has the special puncture and cut resistance of the metal material, solves the problem of poor strength, impact resistance, heat resistance, conductivity and other properties of the traditional flexible wire, and provides a powerful guarantee for manufacturing clothes with excellent knife-stab and impact resistance.

Drawings

Fig. 1 is a schematic view of the structural features of the flexible metal wire of the present invention.

Reference numerals: 1. a first metal ring; 2. a second metal ring.

Detailed Description

The above features and advantages of the present invention, and those that characterize it, will be apparent from the following more particular description of the invention, taken in conjunction with the accompanying drawings, in which like reference characters refer to the same parts throughout the different views.

As shown in fig. 1, an aspect of the present invention provides a flexible metal wire in which micro-sized metal rings are connected to each other. The first metal ring 1 and the second metal ring 2 are connected in series and buckled with each other, and the first metal ring 1 and the second metal ring 2 can be metal rings made of the same material or metal rings made of different materials.

The first metal ring 1 and/or the second metal ring 2 has an inner diameter of 0.2 to 200 μm and an outer diameter of 0.4 to 400 μm. The first metal ring 1 and the second metal ring 2 are sequentially connected with each other to form a flexible metal wire with an integral wire diameter of 0.4-400 mu m. The wire diameter of the flexible metal wire may be thicker or thinner under extreme requirements. The length of the flexible metal wire can be any value, and the shortest length is generally more than 1 cm. The flexible metal wire has the flexible characteristic of being capable of bending freely on the macro scale and recovering to the original state freely.

The first metal ring 1 and/or the second metal ring 2 are closed loops formed by thin metal wires, and the diameter of the thin metal wires is 0.1-100 μm. The metal closed loop can be a closed loop formed by completely combining metal bonds from head to tail, and can also be a non-metal bond, and is only a mechanical contact, even a non-compact combined closed loop with micro-gaps. The shape of the first metal ring 1 and/or the second metal ring 2 may be a circle, an ellipse, a triangle, a quadrangle, a pentagon, and/or other polygons in a submicron to submillimeter scale.

Any metal or alloy material which is solid at normal temperature can be used as the main raw material of the flexible metal wire, such as Fe, Cu, Al, Ti, Al-Mg alloy, Fe-Si alloy and the like. The metal raw materials for forming the metal rings in the flexible metal wire can be all a single metal material, and different metal rings can be different metal materials. When different metal materials form the metal rings and then form the flexible metal wire, the metal rings formed by the different metal materials can be randomly arranged according to requirements in a connection mode. During the processing process of the flexible metal wire or during surface post-treatment, materials of other components are added to form a part of the material of the metal wire.

According to a second aspect of the present invention, there is provided a method of preparing flexible metal wire 3D printing, the method comprising the steps of:

a. adopting micro-nano metal powder as a raw material;

b. adopting an electron beam, a laser beam or a plasma beam as a heat source;

c. forming a graphic file of the flexible metal wire by adopting computer-aided design;

d. converting the graphic file of the flexible metal wire into a 3D printing file by adopting 3D printing slicing software;

e. and starting 3D printing software to run, and finishing the preparation of the flexible metal wire by the 3D printing method.

Wherein the raw material is metal powder with the particle size of 0.01-100 mu m.

According to a third aspect of the present invention, there is provided a method of making a flexible metal wire, the method comprising the steps of:

a. adopting a conventional metal wire with a micro-nano wire diameter as a raw material;

b. adopting a bending, shearing and welding machine with micro-nano processing capacity to pay off, bend, shear and weld the conventional metal wire with the micro-nano wire diameter;

c. completing the preparation of the flexible metal wire.

Wherein the raw material is a thin metal wire having a wire diameter of 0.1 to 100 μm.

The welding process in micro-nano machining is replaced, and the flexible metal wire can be obtained by buckling closed metal ring rings which are formed by bending and are easy to open under external force tearing and pulling; or the bonding process is adopted to replace the welding process to form the adhesive closed-loop flexible metal wire.

The first embodiment is as follows:

the raw material is W18Cr4V stainless steel powder with the grain size of 5 mu m, a laser melting type metal product 3D printer independently developed by Andshi Asia Tai is adopted, the effective printing area is 200mm multiplied by 200mm, and the 3D printing process of the flexible metal wire is set as follows:

a. columnar rods with the height of 0.1mm, the diameter of 20 mu m and the spacing of 0.5mm are printed on a planar substrate to be used as a support.

b. The ring provided with the flexible metal wire is as follows:

i. the adjacent circular rings penetrate through each other in the horizontal direction and the vertical direction respectively to form flexible metal wires with any length;

ii. The inner diameter of the circular ring is 40 μm, and the diameter of the wire constituting the circular ring is 40 μm;

iii, on a plane of 200mm multiplied by 200mm, flexible metal wires are fully distributed in a zigzag manner, the gap between two adjacent wires is 1mm, the number of the total wires is 100, and the total length of the obtained flexible metal wires is 20m (100 multiplied by 200 mm);

iv, 3D printing point splitting is carried out on the flexible metal silk thread, and the flexible metal silk thread is decomposed into points on a plane to be printed.

c. And finishing the printing of the flexible metal wire under the drive of the 3D printing process software.

Example two:

the raw material is cold-drawn stainless steel wire with the diameter of 20 μm, and 10000 basic material units with the length of 130 μm are cut. Adopt the 3D printer of basic material unit laser beam metal product of an autonomous development of an Asia Tai of Anshi, set up its 3D printing process who is applied to flexible metal silk thread and do:

a. bending the base material unit into a circular ring;

b. welding the circular rings end to end into a closed loop by laser;

c. taking a second basic material unit, penetrating through the first circular ring, bending the second basic material unit into a circular ring, and performing laser welding to form a closed loop;

d. taking a third basic material unit, penetrating through a second circular ring, bending and welding;

e. repeating the processes of sequentially passing, bending and welding to finally obtain the flexible metal wire consisting of 10000 circular rings.

The whole process is set and controlled by a computer.

Example three:

the raw material is cold-drawn stainless steel wire, the wire diameter is 20 μm, and the flexible metal wire processing machine which is independently developed by the Asia Pacific is adopted, and the performance characteristics are as follows: the metal wire paid out from the coil is firstly bent into a circular ring, then the metal wire is welded together end to end by laser, the metal wire is cut off from a welding point, the metal wire passes through the circular ring, then the metal wire is continuously bent into the circular ring, and then the metal wire is welded and cut off, and the metal wire is circularly reciprocated to form a flexible metal wire; the whole process is set and controlled by a computer.

The stainless steel wire coiled material with the wire diameter of 20 mu m is placed into a flexible metal wire processing machine, and the performance parameters are set as follows: the inner diameter of the circular ring is 40 mu m, and the length of the single line is 1000 m; starting automatic operation, and finally obtaining a flexible stainless steel metal wire with the stainless steel wire as a raw material, wherein the wire is 80 mu m in diameter and 1000m in length.

The flexible metal wire disclosed by the invention not only keeps the flexibility of the wire processed from conventional cotton, fiber, artificial polymer materials and the like, but also has the special puncture and cut resistance of the metal material, solves the problem of poor strength, impact resistance, heat resistance, conductivity and other properties of the traditional flexible wire, and provides a powerful guarantee for manufacturing clothes with excellent knife-stab and impact resistance.

The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.