Manufacturing method of metal net

Abstract

The invention discloses a manufacturing method of a metal net applied to anti-static rubber, which comprises the following steps: carrying out heat treatment on a metal net base material, namely carrying out homogenizing annealing, rapid annealing, quenching and aging treatment, and carrying out surface conductive oxidation treatment on the metal net base material, so as to obtain the metal net applied to the anti-static rubber. The metal mesh base material is subjected to heat treatment to form a conductive oxidation film on the metal mesh base material, so that the metal mesh base material has good mechanical properties through heat treatment, and has good electrical properties and improved corrosion resistance through surface conductive oxidation treatment, and in practical application, when the treated metal mesh is applied to anti-static rubber, the anti-static rubber is not prone to deformation, and the service life of the metal mesh is prolonged. And the use performance can be improved.

Description

Technical Field

[0001] The present invention relates to the field of electronic technology, and particularly to a manufacturing method of a metal mesh. Background Art

[0002] At present, in the electronics industry, antistatic rubber is widely used to prevent the accumulated charge from damaging semiconductor components. The traditional method is to place the metal mesh inside the rubber and press it into a plate. However, in the traditional preparation process, the metal mesh is often not pre-processed, so its performance and usage effect are not good. Summary of the Invention

[0003] An embodiment of the present invention provides a manufacturing method of a metal mesh for the deficiencies in the prior art. The metal mesh is applied to antistatic rubber, and the manufacturing method of the metal mesh includes:

[0004] Performing heat treatment on a metal mesh substrate;

[0005] Among them, the steps of the heat treatment include a homogenization annealing step, a rapid annealing step, a quenching step, and an aging treatment step;

[0006] Performing surface conductive oxidation treatment on the metal mesh substrate to form a conductive oxide film on the metal mesh substrate.

[0007] As a preferred solution, the conductive oxide film is any one of an aluminum oxide film, a chromium oxide film, a zinc oxide film, and a copper oxide film.

[0008] As a preferred solution, the metal mesh substrate is an aluminum alloy plate, and the metal mesh substrate includes the following components in parts by weight: 5.0 - 6.0 parts of silicon, 0.70 part of iron, 3.0 - 4.5 parts of copper, 0.5 part of manganese, 0.15 part of chromium, 0.25 part of magnesium, 0.55 part of zinc, 0.20 part of titanium, and 0.15 part of lead.

[0009] As a preferred solution, the homogenization annealing step includes:

[0010] Heating the metal mesh substrate, with a heating temperature of 550 - 600 °C and a holding time of 15 - 20 hours;

[0011] Allowing the metal mesh substrate to cool naturally in an oven.

[0012] As a preferred solution, the rapid annealing step includes:

[0013] Heating the metal mesh substrate, with a heating temperature of 400 - 450 °C and a holding time of 2 - 3 hours;

[0014] Allowing the metal mesh substrate to cool naturally in the air.

[0015] As a preferred solution, the quenching step includes:

[0016] Quenching the metal mesh substrate at a quenching temperature of 450 - 500 °C;

[0017] Placing the metal mesh substrate in normal temperature water for cooling treatment.

[0018] As a preferred solution, the aging treatment step includes:

[0019] Performing artificial aging treatment on the metal mesh substrate under the conditions of a temperature of 120 - 150 °C and a time of 5 - 6 hours, and allowing the metal mesh substrate to cool naturally in the air.

[0020] As a preferred solution, after performing surface conductive oxidation treatment on the metal mesh substrate to form a conductive oxide film on the metal mesh substrate, it further includes:

[0021] Forming a carbon-containing layer on the conductive oxide film.

[0022] As a preferred solution, the forming of the carbon-containing layer on the conductive oxide film specifically includes:

[0023] Spraying a slurry mixed with graphite and an adhesive on the conductive oxide film to form a carbon-containing layer; based on the total weight of the slurry, the slurry includes 70 - 75% of graphite.

[0024] As a preferred solution, after spraying the slurry mixed with graphite and an adhesive on the conductive oxide film, it further includes:

[0025] Wiping the surface of the conductive oxide film.

[0026] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: The embodiments of the present invention provide a manufacturing method of a metal mesh for anti-static rubber. By performing heat treatment on the metal mesh substrate, where the heat treatment steps include a homogenization annealing step, a rapid annealing step, a quenching step, and an aging treatment step, and then performing surface conductive oxidation treatment on the metal mesh substrate to form a conductive oxide film on the metal mesh substrate. In this way, the metal mesh substrate first undergoes heat treatment, making it have good mechanical properties, and undergoes surface conductive oxidation treatment, making it have good electrical properties and improving the corrosion resistance. In practical applications, when the treated metal mesh is applied to anti-static rubber, its service performance can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic flow chart of the manufacturing method of the metal mesh in the embodiments of the present invention. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0029] Please refer to Figure 1 , which is a schematic flow chart of the manufacturing method of the metal mesh in the embodiments of the present invention.

[0030] The metal mesh is applied to anti-static rubber. The manufacturing method of the metal mesh in the embodiments of the present invention includes:

[0031] Step S101, performing heat treatment on the metal mesh substrate;

[0032] Among them, the steps of the heat treatment include a homogenization annealing step, a rapid annealing step, a quenching step, and an aging treatment step;

[0033] Step S102, performing surface conductive oxidation treatment on the metal mesh substrate to form a conductive oxide film on the metal mesh substrate.

[0034] In the embodiments of the present invention, by performing heat treatment on the metal mesh substrate, where the steps of the heat treatment include a homogenization annealing step, a rapid annealing step, a quenching step, and an aging treatment step, and then performing surface conductive oxidation treatment on the metal mesh substrate to form a conductive oxide film on the metal mesh substrate. In this way, the metal mesh substrate first undergoes heat treatment to have good mechanical properties, and undergoes surface conductive oxidation treatment to have good electrical properties and improve the corrosion resistance. In practical applications, when the treated metal mesh is applied to anti-static rubber, its service performance can be improved.

[0035] In specific implementation, the metal mesh substrate is a mesh-shaped aluminum alloy plate, for example, it can be an AC2A type aluminum alloy plate, which has the advantages of low density, high strength, strong plasticity, good electrical conductivity, etc. It has high plasticity in annealing and hot states, and the plasticity is stable after quenching and natural aging. Of course, the metal mesh substrate can also be selected according to actual use requirements with other materials, and no more details will be elaborated here. The metal mesh substrate includes the following components in parts by weight: 5.0 - 6.0 parts of silicon, 0.70 part of iron, 3.0 - 4.5 parts of copper, 0.5 part of manganese, 0.15 part of chromium, 0.25 part of magnesium, 0.55 part of zinc, 0.20 part of titanium, and 0.15 part of lead. Exemplarily, the mechanical properties (mechanical properties of the bar at room temperature in the longitudinal direction) of the welded metal mesh substrate are: tensile strength σb (MPa): ≥300, elongation at break δ5 (%): ≥12, specimen size: bar diameter (round diameter) ≤1.50 mm.

[0036] In an alternative embodiment, the conductive oxide film is any one of an aluminum oxide film, a chromium oxide film, a zinc oxide film, and a copper oxide film. Of course, the conductive oxide film can also be set according to actual usage requirements, and no more details will be elaborated here.

[0037] Specifically, the thickness of the conductive oxide film is 0.01 - 0.15 microns. For example, it can be 0.01 micron, 0.02 microns, 0.03 microns, 0.04 microns, 0.05 microns, 0.06 microns, 0.07 microns, 0.08 microns, 0.09 microns, 0.1 micron, 0.11 microns, 0.12 microns, 0.13 microns, 0.14 microns, 0.15 microns, etc. Of course, the thickness of the conductive oxide film can also be set to other values according to actual usage requirements, and no more details will be elaborated here.

[0038] In specific implementation, the metal mesh of the embodiment of the present invention is applied to anti-static rubber. Specifically, for example, the metal mesh is placed inside the rubber and pressed into a plate, and the anti-static rubber is applied to electronic products. For example, it can prevent the accumulated charge from damaging semiconductor components. The purpose of the surface conductive oxidation treatment in the embodiment of the present invention is to obtain a higher surface impedance effect because the electrical performance requirements of electronic products are very high, and the electrical performance must be considered. The thickness of the oxide film formed by conductive oxidation is 0.01 - 0.15 microns, which can conduct electricity and is more corrosion-resistant than aluminum alloy plates.

[0039] In an alternative embodiment, the homogenization annealing step includes:

[0040] Heat the metal mesh substrate, with the heating temperature being 550 - 600 °C and the holding time being 15 - 20 hours;

[0041] Allow the metal mesh substrate to cool naturally in an oven.

[0042] In an alternative embodiment, the rapid annealing step includes:

[0043] Heat the metal mesh substrate, with the heating temperature being 400 - 450 °C and the holding time being 2 - 3 hours;

[0044] Allow the metal mesh substrate to cool naturally in the air.

[0045] In an alternative embodiment, the quenching step includes:

[0046] Quench the metal mesh substrate, with the quenching temperature being 450 - 500 °C;

[0047] Place the metal mesh substrate in normal-temperature water for cooling treatment.

[0048] In an alternative embodiment, the aging treatment step includes:

[0049] Perform artificial aging treatment on the metal mesh substrate. The conditions for the artificial aging treatment are at a temperature of 120 - 150 °C and a time of 5 - 6 hours, and allow the metal mesh substrate to cool naturally in the air.

[0050] In practical applications, the prepared metal mesh can be cut differently according to different rubber sizes and shapes for the required purposes.

[0051] In an alternative embodiment, after the step S102 "Perform surface conductive oxidation treatment on the metal mesh substrate to form a conductive oxide film on the metal mesh substrate", the following is further included:

[0052] Form a carbon - containing layer on the conductive oxide film.

[0053] In practical applications, the conductive oxide film has pores, so corrosion is more likely to occur at the pores compared to other parts. In this embodiment, by forming a carbon - containing layer on the conductive oxide film, the pores of the conductive oxide film are blocked, thereby improving the corrosion resistance of the metal mesh. At the same time, the carbon - containing layer has conductivity, ensuring the conductivity of the metal mesh, so that when the metal mesh is applied to anti - static rubber, it can play an anti - static role.

[0054] Exemplarily, forming the carbon - containing layer on the conductive oxide film specifically includes:

[0055] Spray a slurry mixed with graphite and an adhesive on the conductive oxide film to form a carbon - containing layer; based on the total weight of the slurry, the slurry includes 70 - 75% graphite.

[0056] In specific implementation, first prepare a slurry mixed with graphite and an adhesive. Specifically, for example, the slurry includes 70 - 75% graphite, such as 70%, 71%, 72%, 73%, 74%, 75%, etc., and the balance is the adhesive. The adhesive includes, for example, resin. Of course, other adhesives can also be used. When preparing the slurry, for example, graphite and the adhesive can be stirred and mixed. In this embodiment, the slurry including 70 - 75% graphite ensures that when the slurry blocks the pores of the conductive oxide film, the conductivity of the conductive oxide film can be ensured.

[0057] Further, after spraying the slurry mixed with graphite and an adhesive on the conductive oxide film, the following is further included:

[0058] Wipe the surface of the conductive oxide film.

[0059] After spraying the paste mixed with graphite and adhesive on the conductive oxide film in this embodiment, the surface of the conductive oxide film is wiped to wipe off the paste on the surface of the conductive oxide film, and at least part of the paste infiltrated into the pores of the conductive oxide film can remain in the conductive oxide film. In this way, on the one hand, most of the surface of the conductive oxide film is exposed, ensuring its good electrical performance and corrosion resistance. On the other hand, it ensures that the carbon layer blocks the pores of the conductive oxide film to further improve the corrosion resistance of the metal mesh.

[0060] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: The embodiments of the present invention provide a manufacturing method of a metal mesh applied to antistatic rubber. By performing heat treatment on the metal mesh substrate, the steps of heat treatment include homogenization annealing step, rapid annealing step, quenching step and aging treatment step, and then performing surface conductive oxidation treatment on the metal mesh substrate to form a conductive oxide film on the metal mesh substrate. In this way, the metal mesh substrate is first subjected to heat treatment to make it have good mechanical properties, and then subjected to surface conductive oxidation treatment to make it have good electrical properties and improve the corrosion resistance. In practical applications, when the treated metal mesh is applied to antistatic rubber, its service performance can be improved.

[0061] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A manufacturing method of a metal mesh, characterized in that, The metal mesh is applied to anti-static rubber, and the manufacturing method of the metal mesh includes: Performing heat treatment on the metal mesh substrate; Among them, the steps of the heat treatment include a homogenization annealing step, a rapid annealing step, a quenching step, and an aging treatment step; Performing surface conductive oxidation treatment on the metal mesh substrate to form a conductive oxide film on the metal mesh substrate.

2. The manufacturing method of the metal mesh according to claim 1, characterized in that, The conductive oxide film is any one of an aluminum oxide film, a chromium oxide film, a zinc oxide film, and a copper oxide film.

3. The manufacturing method of the metal mesh according to claim 1, characterized in that The metal mesh substrate is an aluminum alloy plate, and the metal mesh substrate includes the following components in parts by weight: 5.0 - 6.0 parts of silicon, 0.70 part of iron, 3.0 - 4.5 parts of copper, 0.5 part of manganese, 0.15 part of chromium, 0.25 part of magnesium, 0.55 part of zinc, 0.20 part of titanium, and 0.15 part of lead.

4. The manufacturing method of the metal mesh according to claim 1, characterized in that, The homogenization annealing step includes: Heating the metal mesh substrate, with the heating temperature being 550 - 600 °C and the holding time being 15 - 20 hours; Allowing the metal mesh substrate to cool naturally in an oven.

5. The manufacturing method of the metal mesh according to claim 1, characterized in that, The rapid annealing step includes: Heating the metal mesh substrate, with the heating temperature being 400 - 450 °C and the holding time being 2 - 3 hours; Allowing the metal mesh substrate to cool naturally in the air.

6. The manufacturing method of the metal mesh according to claim 1, characterized in that, The quenching step includes: Quenching the metal mesh substrate, with the quenching temperature being 450 - 500 °C; Placing the metal mesh substrate in normal temperature water for cooling treatment.

7. The manufacturing method of the metal mesh according to claim 1, characterized in that, The aging treatment step includes: Performing artificial aging treatment on the metal mesh substrate, with the conditions of the artificial aging treatment being at a temperature of 120 - 150 °C and a time of 5 - 6 hours, and allowing the metal mesh substrate to cool naturally in the air.

8. The manufacturing method of the metal mesh according to any one of claims 1-7, characterized in that, After performing the surface conductive oxidation treatment on the metal mesh substrate to form a conductive oxide film on the metal mesh substrate, it further includes: Forming a carbon-containing layer on the conductive oxide film.

9. The manufacturing method of the metal mesh according to claim 8, characterized in that, The forming of the carbon-containing layer on the conductive oxide film specifically includes: Spraying a slurry mixed with graphite and an adhesive on the conductive oxide film to form a carbon-containing layer; calculated based on the total weight of the slurry, the slurry includes 70 - 75% of graphite.

10. The manufacturing method of the metal mesh according to claim 9, characterized in that, After spraying the slurry mixed with graphite and an adhesive on the conductive oxide film, it further includes: Wiping the surface of the conductive oxide film.

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