A nickel-based corrosion-resistant impact-resistant wire mesh and a method for manufacturing the same

Abstract

The present application belongs to the technical field of nickel alloy manufacturing, and particularly relates to a nickel-based corrosion-resistant impact-resistant metal wire mesh and a preparation method thereof. The metal wire mesh is prepared by impregnating a nickel-based alloy after being woven into a shape in a corrosion-resistant agent. Nickel, chromium, titanium, iron, aluminum, neodymium and carbon powder are used as raw materials. High-toughness nickel-based alloy micro wires are prepared by cold isostatic pressing and vacuum solid-phase sintering and are woven into a mesh. Trace neodymium is used to purify the grain boundary, and multiple elements are used to synergistically precipitate the matrix. Subsequently, the mesh is impregnated in a reactive corrosion-resistant agent prepared from polysilazane, hexafluoropolyether triethoxysilane, titanium dioxide sol, nickel sulfate and citric acid. The internal metallurgical strengthening and external chemical anchoring corrosion protection are deeply synergized, the interface bonding force, impact resistance and long-term corrosion resistance of the wire mesh are greatly improved, and the wire mesh has a wide application prospect under harsh working conditions.

Description

Technical Field

[0001] This invention belongs to the field of nickel alloy manufacturing technology, specifically relating to a nickel-based corrosion-resistant and impact-resistant metal wire mesh and its preparation method. Background Technology

[0002] Metal wire mesh has irreplaceable and widespread applications in chemical filtration, marine engineering, and extremely harsh environments. Currently, research on the corrosion resistance and impact resistance of metal wire mesh mainly focuses on two directions: first, improving the intrinsic corrosion resistance and micromechanical properties of the base metal through multi-element alloying; and second, constructing a physical barrier to block the intrusion of corrosive media such as chloride ions by coating the metal surface with low surface energy materials or inorganic anti-corrosion coatings. The industry's technological development trend is gradually evolving towards a composite protection strategy combining "internal metallurgical strengthening" and "external surface engineering" to adapt to increasingly complex and extreme industrial conditions.

[0003] However, existing composite protection technologies using metal mesh still face insurmountable bottlenecks. On the one hand, traditional high-alloying methods often fail to balance the material's ultimate corrosion resistance and machinability, leading to difficulties in microwire drawing or increased overall brittleness. On the other hand, conventional surface anti-corrosion coatings and metal substrates are mostly based on simple physical adhesion or weak van der Waals forces. When faced with strong mechanical impacts, alternating stress, or fluid shearing, the coating is highly susceptible to microcracks or localized peeling. Once the coating is damaged, corrosive media can rapidly penetrate along the interface, triggering deep pitting and intergranular corrosion, causing the metal mesh protection system to completely fail. Summary of the Invention

[0004] To address the above issues, this invention provides a nickel-based corrosion-resistant and impact-resistant metal wire mesh and its preparation method. The invention constructs a metal microwire substrate with both high toughness and intrinsic pitting corrosion resistance using powder metallurgy combined with microalloying technology. Simultaneously, a metal bonding layer is grown between the metal substrate and the hybrid superhydrophobic resin network, thereby constructing a corrosion-resistant alloy material with strong internal matrix toughness, external chemical anchoring, and a superhydrophobic physical barrier. This aims to overcome the shortcomings of existing metal wire mesh surface anti-corrosion coatings, which are prone to peeling and failure under stress, and the alloy substrate's susceptibility to deep corrosion.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: This invention provides a nickel-based corrosion-resistant and impact-resistant metal wire mesh, which is prepared by weaving a nickel-based alloy and then impregnating it in a corrosion-resistant agent. The nickel-based alloy comprises the following raw materials in parts by weight: 72 parts nickel powder, 10-15 parts chromium powder, 7-9 parts titanium powder, 4-7 parts iron powder, 3 parts aluminum powder, 0.5 parts neodymium powder, and 0.15 parts carbon powder.

[0006] Furthermore, the corrosion resistant agent comprises the following raw materials in the following mass ratio: polysilazane: C6-PFPE-TES (hexacarbon perfluoropolyether triethoxysilane): titanium dioxide sol: nickel sulfate: citric acid = 55:15:13:10:7.

[0007] Furthermore, the preparation method of the corrosion resistant agent is as follows: S1: Mix polysilazane and C6-PFPE-TES under an inert atmosphere until homogeneous, then slowly add titanium dioxide sol and ultrasonically disperse for 30 min. Utilize the cavitation effect of ultrasound to break up the agglomeration of nano-titanium dioxide, allowing its nanoscale size to be uniformly dispersed in the fluorosilicone polymer network, thus obtaining a titanium suspension. S2: Nickel sulfate and citric acid are mixed and dispersed. The carboxyl and hydroxyl groups of citric acid react with Ni... 2+ Strong coordination occurs, forming stable binuclear or polynuclear chelates, preventing them from causing resin crosslinking and aggregation during subsequent mixing with polysilazane, resulting in a chelate solution. Under light-protected conditions, the chelate solution is added to the titanium suspension and aged in a sealed container for 12 hours to obtain a corrosion resistant agent.

[0008] Furthermore, the preparation method of the nickel-based alloy is as follows: R1: Take nickel powder, chromium powder, titanium powder, iron powder, aluminum powder, neodymium powder and carbon powder and put them into a planetary ball mill. Introduce argon gas, add cemented carbide grinding balls, control the rotation speed at 250 rpm, and ball mill for 4 hours to obtain alloy powder. R2: The alloy powder was held under 200 MPa pressure for 15 min using cold isostatic pressing technology to obtain an alloy green billet. It was then transferred to a vacuum high-temperature sintering furnace and heated to 1250℃ at a heating rate of 5℃ / min. During the high-vacuum sintering process, neodymium preferentially captured oxygen and sulfur at the grain boundaries, purifying the grain boundaries and hindering abnormal grain growth. At the same time, aluminum and titanium combined with nickel to form a precipitated strengthening phase precursor, while carbon formed titanium carbide with titanium. This allowed the metallurgical sintering to be completed at a temperature far below the traditional melting point, greatly reducing the burn-off of active elements. After holding the sintering at this temperature for 5 h, the billet was cooled to room temperature with the furnace to obtain a nickel-based alloy ingot. R3: The nickel-based alloy ingot is heated to 1050℃ and hot-extruded to form an alloy wire rod. Then, it is homogenized and solution treated for 1 hour, followed by water quenching and multiple drawing passes to obtain the nickel-based alloy.

[0009] This invention also provides a method for preparing a nickel-based corrosion-resistant and impact-resistant metal wire mesh, the specific steps of which are as follows: Step 1: The nickel-based alloy is woven into a wire mesh using an interlacing machine. After ultrasonic degreasing, it is subjected to micro-etching surface activation to remove the natural oxide scale generated during the drawing and annealing process, exposing the highly active nickel alloy substrate. After washing and drying, the pre-treated wire mesh is obtained. Step 2: Immerse the pretreated wire mesh in the corrosion resistant agent and keep it under vacuum for 15 minutes. Remove the air at the intersections of the wire mesh weaving to ensure complete immersion. Then, lift it at a uniform speed and drain the excess liquid to obtain the impregnated wire mesh. Step 3: The impregnated wire mesh is subjected to a three-stage gradient temperature curing treatment. In the first stage, the temperature is raised to 120℃ and held to allow the solvent to evaporate and promote the initial cross-linking and condensation of polysilazane and C6-PFPE-TES, forming a uniform colloidal coating layer on the surface of the metal wire. In the second stage, the temperature is raised to 200℃ and held to utilize the thermal decomposition and strong reducing properties of citric acid to reduce the chelated nickel sulfate stable in the cross-linked network in situ into nano-sized elemental nickel particles, which are then firmly anchored to the nickel-based alloy substrate. In the third stage, the temperature is raised to 300℃ to allow the polysilazane to undergo an inorganic ceramic transformation, forming a dense inorganic Si-CN anti-corrosion layer. After cooling, a nickel-based corrosion-resistant and impact-resistant metal wire mesh is obtained.

[0010] The beneficial effects achieved by this invention are as follows: The nickel-based corrosion-resistant and impact-resistant metal wire mesh provided by this invention combines excellent interfacial bonding, a durable corrosion barrier, and high mechanical impact resistance. The introduction of trace amounts of neodymium powder in the alloy formulation preferentially captures oxygen and sulfur at grain boundaries during sintering, deeply purifying the grain boundaries and inhibiting abnormal grain growth. Combined with the precipitated strengthening phase precursor formed in situ by aluminum powder, titanium powder, and nickel, and titanium carbide microparticles formed by the combination of carbon and titanium, multiple mechanisms work synergistically to impart extremely high mechanical impact resistance and microscopic wear resistance to the matrix without significantly reducing the metal's pull-out plasticity. The dense Si-CN inorganic ceramic network formed by the high-temperature conversion of polysilazane provides a robust physical defense; the cross-linking of hexacarbon perfluoropolyether triethoxysilane imparts extremely low surface energy to the coating; and the nanoscale roughness constructed with titanium dioxide sol meets the topological requirements of the superhydrophobic interface, constructing a stable hydrophobic network that blocks the adhesion and penetration of corrosive media. The strong coordination effect of citric acid can effectively prevent resin agglomeration and gelation caused by highly active inorganic salts, and also improve the bonding between elemental nickel and nickel-based alloy base. Attached Figure Description

[0011] Figure 1 The results of the electro-corrosion performance evaluation of the nickel-based corrosion-resistant and impact-resistant metal wire meshes prepared in Examples 2-5 and Comparative Example 1 are as follows; Figure 2 The results of the salt corrosion resistance test of the nickel-based corrosion-resistant and impact-resistant metal wire meshes prepared in Examples 2-5 and Comparative Example 1 are as follows; Figure 3 The results of the surface hydrophobicity study of the nickel-based corrosion-resistant and impact-resistant metal wire mesh prepared in Example 5; Figure 4The impact strength test results are for the nickel-based corrosion-resistant and impact-resistant metal wire meshes prepared in Examples 2-5 and Comparative Example 1. Detailed Implementation

[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those familiar to those skilled in the art. Furthermore, any methods and materials similar to or equivalent to those described herein may be applied to this invention. The preferred embodiments and materials described herein are for illustrative purposes only and do not limit the scope of this application.

[0014] Unless otherwise specified, the following embodiments are all conventional methods; unless otherwise specified, the raw materials used in the following embodiments are all new materials purchased from the market, and the quantities are all by weight; wherein, in the following embodiments and comparative examples, the nickel sulfate used is in the form of anhydrous nickel sulfate.

[0015] Example 1: This example provides a method for preparing a corrosion resistant agent, which includes the following raw materials in parts by weight: 550 parts of polysilazane, 150 parts of C6-PFPE-TES, 130 parts of titanium dioxide sol, 100 parts of nickel sulfate, and 70 parts of citric acid. The preparation method of the corrosion resistant agent is as follows: S1: Take 550 parts of polysilazane and 150 parts of C6-PFPE-TES and stir at 300 rpm for 1.5 h under an inert atmosphere of argon to mix evenly. Then slowly add 130 parts of titanium dioxide sol and ultrasonically disperse at 400 W for 30 min to obtain titanium suspension. S2: Mix 100 parts of nickel sulfate and 70 parts of citric acid in anhydrous ethanol to obtain a chelating solution. Under light-protected conditions, add the chelating solution to the titanium suspension, stir evenly, and then seal and let stand for 12 hours to obtain the corrosion resistant agent.

[0016] In the following examples and comparative examples, the corrosion resistant agents used were all prepared according to the raw material composition and preparation method of this example.

[0017] Example 2: This example provides a nickel-based corrosion-resistant and impact-resistant metal wire mesh. The metal wire mesh is prepared by weaving and forming a nickel-based alloy and then impregnating it in a corrosion-resistant agent. The nickel-based alloy includes the following raw materials in parts by weight: 72 parts nickel powder, 10 parts chromium powder, 9 parts titanium powder, 7 parts iron powder, 3 parts aluminum powder, 0.5 parts neodymium powder, and 0.15 parts carbon powder. The preparation method of the nickel-based alloy is as follows: R1: Take 72 parts of nickel powder, 10 parts of chromium powder, 9 parts of titanium powder, 7 parts of iron powder, 3 parts of aluminum powder, 0.5 parts of neodymium powder and 0.15 parts of carbon powder and place them in a planetary ball mill. Argon gas is introduced, and cemented carbide grinding balls are added at a ball-to-material mass ratio of 8:1. The rotation speed is controlled at 250 rpm, and intermittent ball milling is adopted. After running for 30 minutes, the milling stops for 10 minutes to prevent local overheating from causing cold welding or excessive oxidation of the powder. The milling is carried out for 4 hours to obtain alloy powder. R2: The alloy powder was held under 200 MPa pressure for 15 min using cold isostatic pressing to obtain a dense alloy green billet, which was then transferred to a vacuum high-temperature sintering furnace. The vacuum level inside the furnace was then reduced to 5 × 10⁻⁶ MPa. -3 When the temperature is below Pa, heat to 1250℃ at a heating rate of 5℃ / min, hold for sintering for 5 h, and cool to room temperature in the furnace to obtain nickel-based alloy ingots; R3: Heat the nickel-based alloy ingot to 1050℃ and hold for 1 hour for hot extrusion to form a billet. Control the extrusion ratio to 10:1 and process it into an alloy wire rod. Then, perform homogenization and solution treatment for 1 hour, followed by water quenching and multi-pass drawing. Control the single-pass surface reduction rate to 16.2%. Then, during work hardening, perform intermediate annealing at 850℃ to obtain the nickel-based alloy.

[0018] The preparation method of the nickel-based corrosion-resistant and impact-resistant metal wire mesh is as follows: Step 1: The nickel-based alloy is woven into a wire mesh using an interlacing machine. After ultrasonic degreasing with anhydrous ethanol at 40°C for 15 minutes, the surface is activated by micro-etching. The wire mesh is then immersed in 5% hydrochloric acid for 30 seconds, followed by washing with deionized water and drying to obtain the pretreated wire mesh. Step 2: Immerse the pretreated wire mesh in the corrosion resistant agent prepared in the example, keep it under vacuum for 15 min, then pull it up at a uniform speed and drain the excess liquid to obtain the impregnated wire mesh; Step 3: The impregnated wire mesh is subjected to a three-stage gradient temperature curing treatment. In the first stage, the temperature is increased to 120℃ at 5℃ / min and held for 1 h to allow the solvent to evaporate. In the second stage, the temperature is increased to 200℃ at 5℃ / min and held for 3 h. In the third stage, the temperature is further increased to 300℃ and held for 2 h to allow the polysilazane to undergo an inorganic ceramic transformation, forming a dense inorganic Si-CN anti-corrosion layer. After cooling, a nickel-based corrosion-resistant and impact-resistant metal wire mesh is obtained.

[0019] Example 3: This example provides a nickel-based corrosion-resistant and impact-resistant metal wire mesh. The metal wire mesh is prepared by weaving a nickel-based alloy and then impregnating it in a corrosion-resistant agent. The nickel-based alloy includes the following raw materials in parts by weight: 72 parts nickel powder, 15 parts chromium powder, 7 parts titanium powder, 4 parts iron powder, 3 parts aluminum powder, 0.5 parts neodymium powder, and 0.15 parts carbon powder. The preparation method of the nickel-based alloy is as follows: R1: Take 72 parts of nickel powder, 15 parts of chromium powder, 7 parts of titanium powder, 4 parts of iron powder, 3 parts of aluminum powder, 0.5 parts of neodymium powder and 0.15 parts of carbon powder and place them in a planetary ball mill. Argon gas is introduced, and cemented carbide grinding balls are added at a ball-to-material mass ratio of 8:1. The rotation speed is controlled at 250 rpm, and intermittent ball milling is adopted. After running for 30 minutes, the milling stops for 10 minutes to prevent local overheating from causing cold welding or excessive oxidation of the powder. The milling is carried out for 4 hours to obtain alloy powder. R2: The alloy powder was held under 200 MPa pressure for 15 min using cold isostatic pressing to obtain a dense alloy green billet, which was then transferred to a vacuum high-temperature sintering furnace. The vacuum level inside the furnace was then reduced to 5 × 10⁻⁶ MPa. -3 When the temperature is below Pa, heat to 1250℃ at a heating rate of 5℃ / min, hold for sintering for 5 h, and cool to room temperature in the furnace to obtain nickel-based alloy ingots; R3: Heat the nickel-based alloy ingot to 1050℃ and hold for 1 hour for hot extrusion to form a billet. Control the extrusion ratio to 10:1 and process it into an alloy wire rod. Then, perform homogenization and solution treatment for 1 hour, followed by water quenching and cooling, and multi-pass drawing. Control the single-pass surface reduction rate to 15.8%. Then, during work hardening, perform intermediate annealing at 850℃ to obtain the nickel-based alloy.

[0020] The preparation method of the nickel-based corrosion-resistant and impact-resistant metal wire mesh is the same as that in Example 2.

[0021] Example 4: This example provides a nickel-based corrosion-resistant and impact-resistant metal wire mesh. The metal wire mesh is prepared by weaving and forming a nickel-based alloy and then impregnating it in a corrosion-resistant agent. The nickel-based alloy includes the following raw materials in parts by weight: 72 parts nickel powder, 12 parts chromium powder, 8 parts titanium powder, 6 parts iron powder, 3 parts aluminum powder, 0.5 parts neodymium powder, and 0.15 parts carbon powder. The preparation method of the nickel-based alloy is as follows: R1: Take 72 parts of nickel powder, 12 parts of chromium powder, 8 parts of titanium powder, 6 parts of iron powder, 3 parts of aluminum powder, 0.5 parts of neodymium powder and 0.15 parts of carbon powder and place them in a planetary ball mill. Argon gas is introduced, and cemented carbide grinding balls are added at a ball-to-material mass ratio of 8:1. The speed is controlled at 250 rpm, and intermittent ball milling is adopted. After running for 30 minutes, the milling stops for 10 minutes to prevent local overheating from causing cold welding or excessive oxidation of the powder. The milling is carried out for 4 hours to obtain alloy powder. R2: The alloy powder was held under 200 MPa pressure for 15 min using cold isostatic pressing to obtain a dense alloy green billet, which was then transferred to a vacuum high-temperature sintering furnace. The vacuum level inside the furnace was then reduced to 5 × 10⁻⁶ MPa. -3 When the temperature is below Pa, heat to 1250℃ at a heating rate of 5℃ / min, hold for sintering for 5 h, and cool to room temperature in the furnace to obtain nickel-based alloy ingots; R3: Heat the nickel-based alloy ingot to 1050℃ and hold for 1 hour for hot extrusion to form a billet. Control the extrusion ratio to 10:1 and process it into an alloy wire rod. Then, perform homogenization and solution treatment for 1 hour, followed by water quenching and cooling, and multi-pass drawing. Control the single-pass surface reduction rate to 15.8%. Then, during work hardening, perform intermediate annealing at 850℃ to obtain the nickel-based alloy.

[0022] The preparation method of the nickel-based corrosion-resistant and impact-resistant metal wire mesh is the same as that in Example 2.

[0023] Example 5: This example provides a nickel-based corrosion-resistant and impact-resistant metal wire mesh, which is prepared by weaving a nickel-based alloy and then impregnating it in a corrosion-resistant agent. The nickel-based alloy includes the following raw materials in parts by weight: 72 parts nickel powder, 13 parts chromium powder, 8 parts titanium powder, 5 parts iron powder, 3 parts aluminum powder, 0.5 parts neodymium powder, and 0.15 parts carbon powder. The preparation method of the nickel-based alloy is as follows: R1: Take 72 parts of nickel powder, 13 parts of chromium powder, 8 parts of titanium powder, 5 parts of iron powder, 3 parts of aluminum powder, 0.5 parts of neodymium powder and 0.15 parts of carbon powder and place them in a planetary ball mill. Argon gas is introduced, and cemented carbide grinding balls are added at a ball-to-material mass ratio of 8:1. The speed is controlled at 250 rpm, and intermittent ball milling is adopted. After running for 30 minutes, the milling stops for 10 minutes to prevent local overheating from causing cold welding or excessive oxidation of the powder. The milling is carried out for 4 hours to obtain alloy powder. R2: The alloy powder was held under 200 MPa pressure for 15 min using cold isostatic pressing to obtain a dense alloy green billet, which was then transferred to a vacuum high-temperature sintering furnace. The vacuum level inside the furnace was then reduced to 5 × 10⁻⁶ MPa. -3 When the temperature is below Pa, heat to 1250℃ at a heating rate of 5℃ / min, hold for sintering for 5 h, and cool to room temperature in the furnace to obtain nickel-based alloy ingots; R3: Heat the nickel-based alloy ingot to 1050℃ and hold for 1 hour for hot extrusion to form a billet. Control the extrusion ratio to 10:1 and process it into an alloy wire rod. Then, perform homogenization and solution treatment for 1 hour, followed by water quenching and cooling, and multi-pass drawing. Control the single-pass surface reduction rate to 15.8%. Then, during work hardening, perform intermediate annealing at 850℃ to obtain the nickel-based alloy.

[0024] The preparation method of the nickel-based corrosion-resistant and impact-resistant metal wire mesh is the same as that in Example 2.

[0025] Comparative Example 1: The difference from Example 5 is that no corrosion-resistant agent was used for impregnation, and a metal wire mesh was prepared.

[0026] Electrochemical corrosion performance evaluation: A standard three-electrode system was used, with the metal wire meshes prepared in Examples 2-5 and Comparative Example 1 as the working electrodes (exposed area set at 1 cm²). 2 A saturated calomel electrode was used as the reference electrode, and a platinum sheet was used as the auxiliary electrode. The test solution was a 3.5% (w / w) NaCl solution at room temperature. Before testing, the open-circuit potential was stabilized for 30 min, followed by polarization curve testing at a scan rate of 1 mV / s, with a scan range of -0.5 V to +0.5 V. The corrosion current density was obtained by fitting using the Tafel extrapolation method, and the results are shown in [Figure number missing]. Figure 1 .

[0027] Neutral salt spray test: Referring to GB / T 10125 standard, the metal wire mesh samples prepared in Examples 2-5 and Comparative Example 1 were suspended in a salt spray test chamber. The spray solution was a 5% (w / w) NaCl solution. The temperature inside the chamber was maintained at 35±2℃, and the pH value was controlled between 6.5 and 7.2. Observations were made every 24 hours, and the time when the first visible red rust or large-area blistering of the coating appeared on the wire mesh surface was recorded. The results are shown in […]. Figure 2 .

[0028] Surface hydrophobicity test: Using an optical contact angle meter, 5 μL of deionized water was dropped onto the horizontally placed surface of the metal mesh prepared in Example 5. After standing for 10 s, the static water contact angle was measured and fitted using the seated drop method. The results are shown in […]. Figure 3 .

[0029] Mechanical strength test: The metal wire meshes prepared in Examples 2-5 and Comparative Example 1 were cut into circular specimens with a diameter of 100 mm. These specimens were placed flat in a ring clamp and locked, ensuring that the effective test stress area had a diameter of 50 mm, and that the mesh surface had no initial tension and was not loose. A high-hardness hemispherical stainless steel punch with a diameter of 20 mm was used, aligned with the center area of ​​the specimen, and pressed vertically downwards at a constant speed of 10 mm / min. Load-displacement data were continuously recorded during the pressing process. The maximum peak load at the moment of specimen rupture, i.e., the bursting force, was extracted. The results are shown in […]. Figure 4 .

[0030] Figure 1 The results showed that the corrosion current density of the metal wire mesh that was not impregnated with the corrosion resistant agent was orders of magnitude different from that of the metal wire mesh prepared in Examples 2-5, indicating that the corrosion resistant agent designed in this application has good anti-electro-corrosion performance and significant effect.

[0031] Figure 2The results showed that the metal wire meshes prepared in Examples 2-5 had good salt corrosion resistance, with rust appearing in the range of 1200-1900 h, which was significantly higher than that of the metal wire meshes prepared in Comparative Example 1 without corrosion-resistant coating treatment.

[0032] Figure 3 The results showed that the corrosion-resistant coating on the metal wire mesh prepared in Example 5 was hydrophobic, with a contact angle of 156°.

[0033] Figure 4 The results showed that the alloy materials prepared in Examples 2-5 and Comparative Example 1 had good impact resistance and high mechanical strength.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0035] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention. The actual application is not limited to this. In conclusion, if those skilled in the art are inspired by this description and design similar methods and embodiments without departing from the spirit of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A nickel-based corrosion-resistant and impact-resistant metal wire mesh, characterized in that, The metal wire mesh is prepared by weaving a nickel-based alloy and then impregnating it in a corrosion-resistant agent. The nickel-based alloy comprises the following raw materials in parts by weight: 72 parts nickel powder, 10-15 parts chromium powder, 7-9 parts titanium powder, 4-7 parts iron powder, 3 parts aluminum powder, 0.5 parts neodymium powder, and 0.15 parts carbon powder; The corrosion resistant agent comprises the following raw materials: polysilazane, C6-PFPE-TES, titanium dioxide sol, nickel sulfate, and citric acid; The preparation method of the corrosion resistant agent is as follows: S1: Mix polysilazane and C6-PFPE-TES evenly, add titanium dioxide sol, and disperse by ultrasonication to obtain titanium suspension; S2: Nickel sulfate and citric acid are mixed and dispersed to obtain a chelating solution. The chelating solution is added to a titanium suspension and aged to obtain a corrosion resistant agent.

2. The nickel-based corrosion-resistant and impact-resistant metal wire mesh according to claim 1, characterized in that, The preparation method of the nickel-based alloy is as follows: R1: Mix nickel powder, chromium powder, titanium powder, iron powder, aluminum powder, neodymium powder and carbon powder, and ball mill to obtain alloy powder; R2: The alloy powder is pressed by cold isostatic pressing to obtain an alloy green billet, which is then sintered and cooled to obtain a nickel-based alloy ingot. R3: The nickel-based alloy ingot is hot-extruded into a blank, processed into alloy wire rod, and then subjected to homogenization solution treatment, water quenching and cooling, and multi-pass drawing to obtain the nickel-based alloy.

3. The nickel-based corrosion-resistant and impact-resistant metal wire mesh according to claim 2, characterized in that, The mass ratio of the polysilazane, C6-PFPE-TES, titanium dioxide sol, nickel sulfate, and citric acid is 55:15:13:10:

7.

4. A method for preparing a nickel-based corrosion-resistant and impact-resistant metal wire mesh according to any one of claims 1-3, characterized in that, The specific steps are as follows: Step 1: The nickel-based alloy is woven into a wire mesh, ultrasonically degreased, washed and dried to obtain a pre-treated wire mesh; Step 2: Immerse the pretreated wire mesh in the corrosion resistant agent, then pull it up at a uniform speed and drain off the excess liquid to obtain the impregnated wire mesh; Step 3: The impregnated wire mesh is subjected to a three-stage gradient temperature curing process to obtain a nickel-based corrosion-resistant and impact-resistant metal wire mesh.

5. The method for preparing a nickel-based corrosion-resistant and impact-resistant metal wire mesh according to claim 4, characterized in that, In step 3, the three-stage gradient temperature curing process is as follows: The first stage involves heating to 120℃ and holding, the second stage involves heating to 200℃ and holding, and the third stage involves further heating to 300℃ and then cooling.

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