CN112126761A

CN112126761A - Plane type metal net heat treatment device

Info

Publication number: CN112126761A
Application number: CN202010961534.6A
Authority: CN
Inventors: 马丕波; 杨萍; 蒋高明; 缪旭红; 丛洪莲; 万爱兰
Original assignee: Jiangnan University
Current assignee: Jiangnan University
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2020-12-25
Anticipated expiration: 2040-09-14
Also published as: CN112126761B

Abstract

The invention discloses a plane type metal mesh heat treatment device, and belongs to the technical field of metal mesh fabric shaping. The invention comprises two support surfaces, wherein each support surface comprises a bearing rod, the bearing rods of the outer frame are connected in a welding, riveting or gluing mode, the bearing rods of the inner frame and the bearing rods of the outer frame are connected by springs, the bearing rods of the inner frame can move relatively along with the stress of the metal mesh, and the stress degree of the metal mesh is determined by the using number of the springs, so that the stress of the metal mesh can be accurate in the heat treatment process. The obtained metal mesh surface has too large curling degree because the metal wires are easy to bend and deform in the weaving process, and the heat treatment device not only can enable the metal mesh to have smoother appearance, but also achieves the advantages of cost saving, less material constraint and industrialization, and is also suitable for weaving, warp knitting, weft knitting and other mesh fabrics.

Description

Plane type metal net heat treatment device

Technical Field

The invention relates to a plane type metal net heat treatment device, and belongs to the technical field of metal mesh fabric shaping.

Background

The knitted fabric is a fabric formed by longitudinally stringing and looping one group of yarns and lapping the other group of yarns along the warp direction, and comprises a warp knitted fabric and a weft knitted fabric, and the knitted net is usually made by a warp knitting method; the woven fabric is formed by interweaving warp and weft yarns in a sinking and floating mode according to a certain rule, and a woven mesh is formed by adopting a leno and pseudo-leno mode generally. The flexible metal mesh fabric produced by the textile technology (knitting technology and weaving technology) has the advantages of corrosion resistance, aging resistance, excellent electromagnetic shielding performance and development in the fields of building, transportation and aerospace. The metal wires are easy to bend and deform in the weaving process, and the metal net is also subjected to the action of bending moment in the using process, so that the generated metal net surface is too large in curling degree. With the development of science and technology, flexible metal nets are receiving more and more attention from researchers and physicists of flexible materials, and the research on the field is going on in the textile industry.

The tensile, bending and shear properties of the wire mesh are related to the bending stiffness of the wire. The metal mesh adopted by the general heat treatment processing device is a sample material with rod-shaped stretching and higher hardness, and can reach certain required electric conduction and hardness performance after homogenization and quenching treatment. In the production process of the metal mesh produced by adopting the weaving and knitting technology, because the diameter of the metal wire is thin, the metal mesh prepared during warping (knitting process flow) or drafting (weaving process flow) is easy to curl due to the internal stress, so the internal stress of the metal wire of the flexible metal mesh cannot disappear by adopting a common heat treatment mode, the appearance of the flexible metal mesh cannot be smooth, and the shaping effect of the flexible metal mesh is poor.

Disclosure of Invention

[ problem ] to

The metal mesh adopted by the existing heat treatment processing device is a sample material with bar-shaped stretching and higher hardness, the internal stress of the metal wire of the flexible metal mesh can not disappear when the flexible metal mesh is subjected to heat treatment, the appearance of the flexible metal mesh can not be smooth, the effect of shaping the flexible metal mesh is poor, and the operation efficiency is lower.

[ solution ]

A plane type metal net heat treatment device comprises an inner supporting surface consisting of a plurality of inner bearing rods and an outer supporting surface consisting of a plurality of outer bearing rods, wherein the inner supporting surface is arranged in the outer supporting surface, the inner supporting surface is connected with the outer supporting surface through an elastic device, a metal net is arranged on the inner supporting surface, and the inner bearing rods move relatively along with the stress of the metal net.

In one embodiment of the invention, the outer supporting surface is composed of four fixedly connected outer bearing rods, the inner supporting surface is composed of four inner bearing rods, and the joints of the four inner bearing rods of the inner frame are unfixed and can move mutually.

In one embodiment of the invention, the net comprises a plurality of inner bearing rods, wherein the inner bearing rods are fixed on the inner bearing rods at equal intervals, the top point of each grid on the outermost side of the metal net is hung on the inner bearing rods, and the distance between the inner bearing rods is determined by the distance between the meshes of the metal net.

In one embodiment of the invention, the elastic device is a spring, the spring is connected with the outer bearing rod and the inner bearing rod, and the stress degree of the metal mesh is changed by arranging different numbers of springs.

In an embodiment of the invention, the heat treatment device further comprises four vertical base support rods for supporting the heat treatment device, and four vertical base support rods are arranged at the joints of the four outer bearing rods.

In one embodiment of the invention, the metal mesh to be heat treated is cut to a predetermined size and shape corresponding to the size and shape of the inner support surface before it is placed on the inner support surface.

In one embodiment of the invention, the spring constant of the spring is determined by the maximum breaking force that the metal mesh to be heat treated can withstand.

In one embodiment of the invention, the number of springs is the same as the number of support rods.

In one embodiment of the invention, the spring is a high temperature resistant ceramic spring.

In one embodiment of the present invention, the size of the heat treatment apparatus is adjusted according to the size of the heat treatment sample and the heat treatment furnace.

[ advantageous effects ]

The stress of the metal mesh can be determined by the number of the springs connected between the inner supporting surface and the outer supporting surface, meanwhile, the inner supporting surface can move relatively along with the stress, the metal mesh is in a plane state for heat treatment, the stress is uniform, the heating is uniform, the internal stress can be better eliminated in the heat treatment process, and the surface of the metal mesh is smoother. The method improves the crimpness of the flexible metal net to a certain extent, enables the metal net to obtain excellent aesthetic effect, saves cost, has less material constraint and can realize industrialization.

Aiming at the shaping problem of the flexible metal net in the prior art, the metal net is kept in a certain tension process for heat treatment, so that the internal stress of the metal net is eliminated in the heat treatment process, the effect of enabling the metal net surface to be smoother is achieved, and meanwhile, the tension value reached when the metal net is subjected to heat treatment at a certain temperature can be determined.

Drawings

Fig. 1 is a perspective view showing the structure of a flat type heat treatment apparatus for expanded metal of example 1.

Fig. 2 is a plan view of the flat type heat treatment apparatus for expanded metal of example 1.

Fig. 3 is a front view of the planar type wire netting heat treatment apparatus of example 1.

In the figure: 1 is an outer frame; 2 is a spring; 3 is an inner frame, 4 is an outer frame bearing rod; 5 is an inner frame bearing rod, 6 is a vertical base support rod, 7 is a support rod, 8 is a small ring of the outer frame bearing rod, and 9 is a small ring of the inner frame bearing rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

The embodiment provides a plane formula metal mesh heat treatment device, is cuboid structure, includes: the device comprises an outer frame 1, a spring 2, an inner frame 3, an outer frame bearing rod 4, an inner frame bearing rod 5, a vertical base support rod 6, a support rod 7, an outer frame bearing rod small ring 8 and an inner frame bearing rod small ring 9.

The outer frame 1 is formed by fixedly connecting four outer frame bearing rods 4, the four outer frame bearing rods 4 cannot move mutually, the outer frame 1 forms an outer supporting surface, and four vertical base supporting rods 6 are arranged at the joints of the four outer frame bearing rods 4; the inner frame 3 is composed of four inner frame bearing rods 5, the joints of the four inner frame bearing rods 5 of the inner frame are not fixed and can move mutually, and the inner frame 3 forms an inner supporting surface.

The four outer frame bearing rods 4 are connected in a welding, riveting or gluing mode, the support rods 7 are fixed on the inner frame bearing rods 5 in a welding mode, the inner frame bearing rods 5 are welded with six support rods 7 with equal intervals, and the outer frame bearing rod small rings 8 and the inner frame bearing rod small rings 9 are respectively welded on the outer frame bearing rods 4 and the inner frame bearing rods 5; one end of the spring 2 is hung on the outer frame bearing rod small ring 8, the other end of the spring is hung on the outer frame bearing rod small ring 9, and the spring 2 can be freely detached and connected between the outer frame bearing rod 4 and the inner frame bearing rod 5; the support rods 7 are connected with the flexible warp knitting metal net, the top point of each grid on the outermost side of the flexible warp knitting metal net is hung on the support rods 7, the distance between the support rods 7 is determined by the mesh size of the metal net, the springs 2 are connected with the outer frame bearing rods 4 and the inner frame bearing rods 5, and the uniform tension on each side of the metal net can be guaranteed. The stress degree of the metal net can be determined by the number of the springs 2 on the inner frame bearing rods 5, for example, the stress degree of the metal net can be determined by the deformation coefficient and the deformation amount of the springs in Hooke's law, and the four inner frame bearing rods 5 of the inner frame 3 can move relatively along with the stress of the metal net, so that the stress degree of the metal net can be accurate in the heat treatment process. The ultra-fine metal wires are bent into loops in the warp knitting process, so that the curling degree of the obtained metal mesh surface is too large, the heat treatment device not only can enable the appearance of the metal mesh to be smoother, but also can save cost, greatly save time, improve production efficiency, have less material constraint and can realize the industrialization, and the ultra-fine metal wires are also suitable for curling mesh fabrics of weaving, weft knitting and the like.

Furthermore, the outer frame 1, the inner frame 3, the outer frame bearing rods 4, the inner frame bearing rods 5, the vertical base support rods 6, the fixed support rods 7 and the like are made of high-temperature-resistant materials with a melting point of about one thousand degrees and certain rigidity, such as steel; the support rod 7 is a small cylinder, the spring is also made of high-temperature-resistant materials, and the high-temperature-resistant ceramic spring is used in the embodiment.

Further, when the device is used for fixing the metal net, the stress of the metal net can be determined through the extension deformation length of the spring 2.

Further, the spring constant of said spring 2 is determined by the maximum breaking strength that the metal mesh to be heat treated can withstand.

Further, the length of the inner frame bearing rod 5 is set by the size of the metal mesh to be heat treated and the size of the outer supporting surface.

Further, placing the heat treated metal mesh on an inner support surface, comprising: the metal mesh to be heat treated is cut to a predetermined size and shape corresponding to the size and shape of the inner support surface.

Further, the size of the heat treatment apparatus can be adjusted according to the size of the heat treatment sample and the heat treatment furnace.

The scope of the present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. that can be made by those skilled in the art within the spirit and principle of the inventive concept should be included in the scope of the present invention.

Claims

1. A plane type metal net heat treatment device is characterized by comprising an inner supporting surface and an outer supporting surface, wherein the inner supporting surface is composed of a plurality of inner bearing rods, the outer supporting surface is composed of a plurality of outer bearing rods, the inner supporting surface is arranged in the outer supporting surface, the inner supporting surface is connected with the outer supporting surface through an elastic device, a metal net is arranged on the inner supporting surface, and the inner bearing rods move relatively along with the stress of the metal net.

2. A planar expanded metal heat treatment apparatus as claimed in claim 1, wherein said outer support surface is comprised of four fixedly connected outer load-bearing bars, said inner support surface is comprised of four inner load-bearing bars and the joints of the four inner load-bearing bars of the inner frame are free to move relative to each other.

3. The apparatus of claim 2, further comprising a plurality of support rods fixed to the inner support rods at equal intervals, wherein the apexes of each mesh of the outermost side of the wire net are hung on the support rods, and the distance between the support rods is determined by the distance between the meshes of the wire net.

4. The planar metal mesh heat treatment device as claimed in claim 3, wherein the elastic means is a spring, the spring connects the outer bearing rod and the inner bearing rod, and the stress degree of the metal mesh is changed by arranging different numbers of springs.

5. The planar metal mesh heat treatment device according to claim 4, further comprising vertical base support rods for supporting the heat treatment device, wherein four vertical base support rods are provided at the joints of the four outer load-bearing rods.

6. A planar gauge wire heat treatment apparatus as claimed in claim 5, wherein the gauge wire to be heat treated is cut into a predetermined size and shape corresponding to the size and shape of the inner support surface before the gauge wire to be heat treated is placed on the inner support surface.

7. A planar metal mesh heat treatment apparatus as claimed in claim 6, wherein the spring constant of said spring is determined by the maximum breaking force that the metal mesh to be heat treated can withstand.

8. The apparatus of claim 7, wherein the number of said springs is the same as the number of said support rods.

9. The apparatus of claim 8, wherein the spring is a refractory ceramic spring.

10. The flat type heat treatment apparatus for expanded metal as claimed in any one of claims 1 to 9, wherein the size of said heat treatment apparatus is adjusted according to the size of the heat treatment sample and the heat treatment furnace.