Basalt scale alloy preparation device and preparation method

Abstract

The invention discloses a basalt scale alloy preparation device and method. The preparation method comprises the following steps that a, basalt scales are ground and sieved, and then uniform scales with the particle size in normal distribution are obtained; b, carrying out surface metallization treatment on the basalt flakes in the step a, and depositing a metal coating on the surfaces of the basalt flakes through an electrochemical plating process; c, mixing 1%-30% by mass of surface-metallized basalt scales with an aluminum alloy raw material, and stirring and dispersing at the melting temperature of 700-850 DEG C to form a uniform mixed melt; and d, preparing the mixed melt into a scale aluminum alloy ingot through a casting process, or directly processing the mixed melt into a scale aluminum alloy profile through an extrusion forming process. The invention provides a novel solution aiming at the application problems of low corrosion resistance, poor wear resistance, low strength and the like of the existing aluminum alloy.

Description

Technical Field

[0001] The present invention relates to the field of metal material production, and in particular to a basalt flake alloy preparation device and preparation method. Background Art

[0002] Aluminum alloy is a material that is widely used in industry, agriculture, national defense and scientific and technological modernization. It has low density, light weight, good electrical conductivity, good thermal conductivity, and good ductility and toughness. It can be used to make aluminum alloy appliances, aluminum alloy profiles, and aluminum alloy structural parts, and is widely used.

[0003] Aluminum alloys have a wide range of applications, and they occupy a large market share as building profiles, instrument housings, and industrial structural components. However, they also have some weaknesses, such as poor corrosion resistance, poor wear resistance, and low strength.

[0004] Existing technologies for mixing basalt fiber or powder with aluminum alloys offer diverse composite methods, significant performance improvements, and critical process control. In terms of composite methods, various methods exist, including fiber reinforcement, particle reinforcement, and surface treatment reinforcement. Performance-wise, these methods can significantly improve the mechanical, physical, and chemical properties of aluminum alloys. Precise control of process parameters plays a decisive role in the performance of composite materials. Currently, research on this technology continues to deepen, and its application areas are gradually expanding, with applications or potential applications in aerospace, automotive, and electronic equipment. Industrialization is also gradually advancing, but it still faces challenges such as high production costs and low efficiency, necessitating further research and innovation to promote its development. In terms of processing, due to the characteristics of basalt, higher-strength equipment is required for grinding. During grinding, it was found that the surface protrusions of cast and extruded basalt alloys are not uniform, with some alloys having protrusions higher than the average. During grinding, the varying protrusions and the difference in protrusions can cause uneven force on the grinding head, resulting in excessive impact on certain areas of the basalt alloy, causing cracks, and surface vibrations caused by the grinding head. Summary of the Invention

[0005] The purpose of the present invention is to provide a basalt flake alloy preparation device and preparation method in order to solve the above problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A basalt flake alloy preparation device includes a grinding table, a material fixing component, an adaptive grinding component, a power component, and a detection component. The adaptive grinding component is installed at the power output end of the power component. During the grinding process of the basalt flake alloy, the adaptive grinding component adaptively adjusts the grinding state in real time to avoid excessive impact on the basalt flake alloy, thereby causing cracks and vibration marks.

[0008] Preferably: the adaptive grinding assembly includes a grinding head, a plurality of grinding beads are arranged in a uniform circular array at the bottom of the grinding head, a gradient friction rod is arranged at one end of the grinding beads, and a limit rod is arranged at the other end of the grinding beads, the grinding beads are axially slidably connected to the grinding head through the gradient friction rod and the limit rod, a groove is formed on the grinding head to match the gradient friction rod and the limit rod, a friction plate is installed in the groove corresponding to the gradient friction rod, and the axis of the grinding beads (32) is installed obliquely with respect to the radial direction of the grinding head (31), and the inclination angle is a.

[0009] Preferably, the grinding beads are installed offset from the grinding head in a diameter direction, so that the debris and coolant generated during grinding are thrown out in an inclined direction.

[0010] A method for preparing a basalt flake alloy comprises the following steps:

[0011] a. Grind the basalt flakes and sieve them to obtain uniform flakes with a normal distribution of particle size;

[0012] b. performing surface metallization treatment on the basalt flakes obtained in step a, depositing a metal coating on the surface thereof by an electrochemical plating process;

[0013] c. Mixing the surface metallized basalt flakes with aluminum alloy raw materials in an amount of 1% to 30% by mass, stirring and dispersing the mixture at a melting temperature of 700 to 850° C. to form a uniform mixed melt;

[0014] d. preparing the mixed melt into a flake aluminum alloy ingot by a casting process, or directly processing it into a flake aluminum alloy profile by an extrusion molding process;

[0015] The aluminum alloy raw material is at least one of Al-Si, Al-Mg or Al-Zn alloys, or can be replaced by pure aluminum powder.

[0016] Preferably, the particle size of the basalt flakes in step a is normally distributed, with an average particle size of 200-1200 nm, and a standard deviation of the particle size is less than 20% of the average particle size.

[0017] Preferably, the surface metallization coating in step b is metal zinc or metal copper, wherein the thickness of the zinc coating is 10-50 nm, and the thickness of the copper coating is 10-70 nm.

[0018] Preferably, the amount of basalt flakes added in step c is 5%-15% of the total mass of the melt, the stirring speed is 200-600 rpm, and the stirring time is 10-60 minutes.

[0019] Preferably, the temperature of the extrusion molding process in step d is 400-550° C., the extrusion ratio is 10:1-30:1, and the molded product includes at least one of wire, strip, foil, plate, and rod.

[0020] Preferably, the basalt flakes further include a pretreatment step after step a: modifying the surface of the flakes with a silane coupling agent, the modification temperature being 80-120° C., and the treatment time being 1-3 hours.

[0021] Preferably: an aluminum alloy matrix, and surface metallized basalt flakes uniformly dispersed in the matrix; the volume fraction of the basalt flakes is 1%-25%, and the aspect ratio is 20:1-50:1.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] Made by melting and mixing basalt flakes and aluminum alloy in a certain proportion, flake aluminum alloy has the advantages of aluminum alloy, low density, light weight, and good electrical and thermal conductivity. At the same time, the present invention proposes a new solution to the current application problems of aluminum alloys, such as weak corrosion resistance, poor wear resistance, and low strength. The flake aluminum alloy was invented by giving full play to the excellent properties of basalt flakes, such as high hardness, high strength, wear resistance, and corrosion resistance. The flake aluminum alloy solves the shortcomings of traditional aluminum alloys in hardness, strength, wear resistance, and corrosion resistance, and is suitable for applications in aerospace, building profiles, structural parts, and other fields.

[0024] In addition, during the grinding process of the basalt flake alloy, the grinding state is adaptively adjusted in real time, thereby avoiding the effects of excessive impact on the basalt flake alloy, which may cause cracks and vibration marks. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of a basalt flake alloy. The parts with structures in the figure are basalt flakes.

[0027] Figure 2 It is basalt flakes coated with metal zinc film (copper film);

[0028] Figure 3 It is a rod produced by the basalt flake alloy extrusion process;

[0029] Figure 4 It is a plate produced by basalt flake alloy extrusion process;

[0030] Figure 5 It is a profile produced by basalt flake alloy casting process;

[0031] Figure 6 It is a structural schematic diagram of a basalt flake alloy preparation device;

[0032] Figure 7 This is a schematic diagram of the installation structure of grinding beads in a basalt flake alloy preparation device;

[0033] Figure 8 It is a schematic diagram of the grinding bead structure of a basalt flake alloy preparation device;

[0034] Figure 9 It is a schematic diagram of the structure of a gradient friction rod of a basalt flake alloy preparation device;

[0035] Figure 10 It is a bottom view of the grinding head of a basalt flake alloy preparation device;

[0036] Figure 11 It is a cross-sectional view of the interior of a grinding bead of a basalt flake alloy preparation device;

[0037] Figure 12 This is a schematic diagram of the inclined installation of grinding beads in a basalt flake alloy preparation device.

[0038] The following are the descriptions of the reference numerals:

[0039] 1. Grinding table; 2. Material fixing assembly; 3. Adaptive grinding assembly; 4. Power assembly; 5. Detection assembly; 31. Grinding head; 32. Grinding beads; 33. Friction plate; 34. Gradual friction rod; 35. Limit rod; 36. Return spring. DETAILED DESCRIPTION

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0041] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0042] The present invention will be further described below in conjunction with the accompanying drawings:

[0043] Example 1

[0044] like Figure 1 As shown, this is a schematic diagram of scale distribution in a cross-section of a scaled aluminum alloy, where scale 1 is distributed in aluminum alloy 2.

[0045] Basalt flakes need to be ground and sieved to form basalt flakes of uniform size. The characteristic size range is 200nm, 400nm, 600nm, 800nm, 1200nm, etc.

[0046] The uniform basalt flakes after grinding and screening need to be chemically plated, and metallic zinc is electrochemically plated on the surface of the basalt flakes, and the characteristic thickness of the zinc film is 10-50nm.

[0047] Basalt flakes and aluminum-zinc alloy (7075) are weighed in a weight ratio of 1:99 to 3:97. The aluminum alloy is melted at a high temperature of 670-950°C. The basalt flakes and aluminum alloy melt are stirred and mixed. Stirring is stopped once the basalt flakes are evenly distributed throughout the aluminum alloy melt. After cooling, the flake aluminum alloy is formed. The flake aluminum alloy combines the advantages of both aluminum alloy and basalt flakes, with low specific gravity, light weight, good machinability, and excellent hardness, strength, wear resistance, and corrosion resistance. The properties of the finished flake aluminum alloy vary depending on the mixing ratio of basalt flakes to aluminum alloy.

[0048] This application utilizes a new aluminum alloy composite material, blended with basalt flakes and aluminum alloy. Its performance differs from existing basalt fiber-based aluminum alloy composites or basalt powder-based aluminum alloy composites in that it offers improved high-temperature and wear resistance. Basalt fiber focuses on mechanical reinforcement, while basalt flakes emphasize surface protection and optimized layered structure. Basalt particles are primarily used in structural components with lower uniformity requirements, such as low-load components, where brittleness increases and elongation decreases.

[0049] Example 2

[0050] Basalt flakes need to be ground and sieved to form basalt flakes of uniform size. The characteristic size range is 200nm, 400nm, 600nm, 800nm, 1200nm, etc.

[0051] The uniform basalt flakes after grinding and screening need to be chemically plated, and metallic zinc is electrochemically plated on the surface of the basalt flakes, and the characteristic thickness of the zinc film is 10-50nm.

[0052] The basalt flakes and the aluminum-zinc alloy (7075) block material are weighed and mixed in a weight ratio of 1:99 to 4:96, and the mixture of the basalt flakes and the aluminum alloy block material is subjected to high temperature melting of the aluminum alloy at a temperature of 670-950° C. The aluminum alloy melt is stirred to uniformly distribute the flakes therein, and a casting process is used to produce flake aluminum alloy appliances, flake aluminum alloy profiles, and flake aluminum alloy structural parts.

[0053] Example 3

[0054] Basalt flakes need to be ground and sieved to form basalt flakes of uniform size. The characteristic size range is 200nm, 400nm, 600nm, 800nm, 1200nm, etc.

[0055] The uniform basalt flakes after grinding and screening need to be chemically plated, and metallic zinc is electrochemically plated on the surface of the basalt flakes, and the characteristic thickness of the zinc film is 10-50nm.

[0056] The basalt flakes and the aluminum-zinc alloy (7075) block material are weighed and mixed in a weight ratio of 0.5:99.5 to 2:98, and the mixture of the basalt flakes and the aluminum alloy block material is subjected to high temperature melting of the aluminum alloy at a temperature of 670-950° C. The aluminum alloy melt is stirred to uniformly distribute the flakes therein, and after cooling, a flake aluminum alloy ingot is formed, which can then be produced by an extrusion process into flake aluminum alloy profiles, flake aluminum alloy wires, strips, foils, plates, and rods.

[0057] Example 4

[0058] Basalt flakes need to be ground and sieved to form basalt flakes of uniform size. The characteristic size range is 200nm, 400nm, 600nm, 800nm, 1200nm, etc.

[0059] The uniform basalt flakes after grinding and screening need to be chemically plated, and metallic zinc is electrochemically plated on the surface of the basalt flakes, and the characteristic thickness of the zinc film is 10-50nm.

[0060] Basalt flakes and aluminum-zinc alloy (7075) powder are weighed and mixed in a weight ratio of 2:98 to 5:95, and the mixture of basalt flakes and aluminum alloy powder is subjected to high temperature melting of aluminum alloy at a temperature of 670-950° C. The aluminum alloy melt is stirred to uniformly distribute the flakes therein, and a casting process is used to produce flake aluminum alloy appliances, flake aluminum alloy profiles, and flake aluminum alloy structural parts.

[0061] Example 5

[0062] Basalt flakes need to be ground and sieved to form basalt flakes of uniform size. The characteristic size range is 200nm, 400nm, 600nm, 800nm, 1200nm, etc.

[0063] The uniform basalt flakes after grinding and screening need to be chemically plated, and metallic zinc is electrochemically plated on the surface of the basalt flakes, and the characteristic thickness of the zinc film is 10-50nm.

[0064] Basalt flakes and aluminum-zinc alloy (7075) powder are weighed and mixed in a weight ratio of 1:99 to 3:97, and the mixture of basalt flakes and aluminum alloy powder is subjected to high temperature melting of aluminum alloy at 670-950°C, and the aluminum alloy melt is stirred to uniformly distribute the flakes therein. After cooling, flake aluminum alloy ingots are formed, and then an extrusion process is used to produce flake aluminum alloy profiles, flake aluminum alloy wires, strips, foils, plates, and rods.

[0065] Example 6

[0066] Basalt flakes need to be ground and sieved to form basalt flakes of uniform size. The characteristic size range is 200nm, 400nm, 600nm, 800nm, 1200nm, etc.

[0067] The uniform basalt flakes after grinding and screening need to be chemically plated, and metallic copper is electrochemically plated on the surface of the basalt flakes, and the characteristic thickness of the copper film is 10-70nm.

[0068] Basalt flakes and aluminum-copper alloy (2024) powder are weighed and mixed in a weight ratio of 1:99 to 6:94, and the mixture of basalt flakes and aluminum powder is subjected to high-temperature melting of aluminum at a temperature of 670-750°C. The molten aluminum is stirred to uniformly distribute the flakes therein, and a casting process is used to produce flake aluminum utensils, flake aluminum profiles, and flake aluminum structural parts.

[0069] Example 7

[0070] Basalt flakes need to be ground and sieved to form basalt flakes of uniform size. The characteristic size range is 200nm, 400nm, 600nm, 800nm, 1200nm, etc.

[0071] The uniform basalt flakes after grinding and screening need to be chemically plated, and metallic copper is electrochemically plated on the surface of the basalt flakes, and the characteristic thickness of the copper film is 10-70nm.

[0072] Basalt flakes and aluminum-copper alloy (2024) powder are weighed and mixed in a ratio of 0.5:99.5 to 3:97. The mixture of basalt flakes and aluminum powder is subjected to high temperature melting of aluminum at 670-750°C. The molten aluminum is stirred to uniformly distribute the flakes therein. After cooling, flake aluminum ingots are formed. Flake aluminum profiles, flake aluminum wires, strips, foils, plates, and rods can be produced by extrusion process.

[0073] The present invention may also include the following features:

[0074] 1. Aluminum alloy powder, which can be cast aluminum alloy powder or deformed aluminum alloy powder.

[0075] 2. Aluminum alloy powder can be replaced by aluminum powder, which can be high-purity aluminum or industrial-purity aluminum powder.

[0076] 3. The extrusion process can be a hot extrusion process or a cold extrusion process.

[0077] like Figures 1-12 At the same time, according to a basalt flake alloy preparation device, it includes a grinding table 1, a material fixing component 2, an adaptive grinding component 3, a power component 4, and a detection component 5. The adaptive grinding component 3 is installed at the power output end of the power component 4. During the grinding process of the basalt flake alloy, the adaptive grinding component 3 adjusts the grinding state in real time and adaptively, thereby avoiding the influence of excessive impact on the basalt flake alloy causing cracks and vibration marks.

[0078] Preferably, the adaptive grinding assembly 3 includes a grinding head 31, a plurality of grinding beads 32 are arranged in a uniform circumferential array at the bottom of the grinding head 31, and a gradual friction rod 34 is provided at one end of the grinding beads 32. The gradual friction rod 34 is in a positive direction from the end away from the grinding beads 32 to the end close to the grinding beads 32, and the friction force in the positive direction gradually increases. In the initial position, the friction force between the gradual friction rod 34 and the friction plate 33 is the largest (e.g. Figure 9 As shown), a limiting rod 35 is provided at the other end of the grinding bead 32, and the grinding bead 32 is axially slidably connected to the grinding head 31 through the gradual friction rod 34 and the limiting rod 35. A groove for matching the gradual friction rod 34 and the limiting rod 35 is formed on the grinding head 31, and a friction plate 33 is installed in the groove corresponding to the gradual friction rod 34. The axis of the grinding bead (32) is tilted with respect to the radial direction of the grinding head (31), and the tilt angle is a (as shown). Figure 12 As shown), the grinding beads (32) and the grinding head (31) are installed in a diameter-offset manner (as shown Figure 10 As shown, line A represents the diameter of the grinding head 31, and line B represents the installation offset of a set of grinding beads 32), so that the chips and coolant generated during grinding are thrown out in an inclined direction (with the eccentrically mounted grinding beads 32, under the action of centrifugal force, grinding force, and coolant, the coolant thrown out in an arc will drive the chips out in the inclined direction);

[0079] The main function is: during the grinding process, when the grinding head 31 rotates in the rotation direction, the tangential force in the rotation direction is the active friction direction, and the grinding beads 32 are subjected to the reverse impact force. When the grinding beads 32 grind the basalt flake alloy, if they encounter a harder convex area, the grinding beads 32 will be subjected to instantaneous friction and slide toward the side of the limit rod 35 (according to Figure 10 It can be seen that the grinding beads 32 are installed obliquely in the radial direction of the grinding head 31. Under the dual reasonable action of centrifugal force and grinding friction, the grinding beads 32 are subjected to friction due to the protrusion of basalt scales, and the force in the axial direction of the grinding beads 32 increases. At this time, a part of the force acting on the grinding beads 32 will drive the grinding beads 32 to slide toward the side of the limit rod 35. When the force in the counter-impact direction increases, because the grinding beads 32 are installed obliquely, there will be a force component along the axis of the grinding beads 32, and the grinding beads 32 will When the grinding bead 32 moves toward the side of the return spring 36, the return spring 36 is squeezed, and the gradual friction rod 34 follows the movement toward the side of the return spring 36. At this time, the friction between the gradual friction rod 34 of the grinding bead 32 and the friction plate 33 becomes smaller, and the friction between the grinding bead 32 and the basalt flake alloy changes from sliding friction to rolling friction, thereby avoiding the accumulation of friction and impact between the grinding bead 32 and the basalt flake alloy, and grinding the protrusions or hard areas with the effect of gradual rolling friction, thereby avoiding cracks or vibration marks on the basalt flake alloy.

[0080] When the grinding bead 32 leaves the harder raised area, the counter-impact force applied to the grinding bead 32 becomes smaller and is insufficient to resist the potential energy of the return spring 36. At this time, the elastic potential energy of the return spring 36 pushes the grinding bead 32 to return to its original position. After the grinding bead 32 is returned to its original position, the friction between the gradual friction rod 34 and the friction plate 33 becomes larger, and the friction between the grinding bead 32 and the basalt flake alloy changes from rolling friction to sliding friction, and then the grinding continues.

[0081] The foregoing are merely preferred embodiments of the present invention. These embodiments are all different implementations based on the overall concept of the present invention. The scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A basalt flake alloy preparation device, characterized by: The invention comprises a grinding table (1), a material fixing component (2), an adaptive grinding component (3), a power component (4), and a detection component (5); the adaptive grinding component (3) is installed at the power output end of the power component (4); and the adaptive grinding component (3) avoids the influence of excessive impact on the basalt flake alloy, such as cracks and vibration marks, by adaptively adjusting the grinding state in real time during the grinding process of the basalt flake alloy.

2. The basalt flake alloy preparation device according to claim 1, characterized in that: The adaptive grinding assembly (3) includes a grinding head (31), a plurality of grinding beads (32) are arranged in a uniform circumferential array at the bottom of the grinding head (31), a gradual friction rod (34) is arranged at one end of the grinding bead (32), and a limiting rod (35) is arranged at the other end of the grinding bead (32), the grinding bead (32) is axially slidably connected to the grinding head (31) through the gradual friction rod (34) and the limiting rod (35), a groove is formed on the grinding head (31) to match the gradual friction rod (34) and the limiting rod (35), a friction plate (33) is installed in the groove corresponding to the gradual friction rod (34), and the axis of the grinding bead (32) is tilted between the radial direction of the grinding head (31), and the tilt angle is a.

3. The basalt flake alloy preparation device according to claim 2, characterized in that: The grinding beads (32) are installed offset from the grinding head (31) in the diameter direction, so that the debris and coolant generated during grinding are thrown out in an inclined direction.

4. The method for preparing a basalt flake alloy according to claim 3, wherein: The following steps are involved: a. Grind the basalt flakes and sieve them to obtain uniform flakes with a normal distribution of particle size; b. performing surface metallization treatment on the basalt flakes obtained in step a, depositing a metal coating on the surface thereof by an electrochemical plating process; c. Mixing the surface metallized basalt flakes with aluminum alloy raw materials in an amount of 1% to 30% by mass, stirring and dispersing the mixture at a melting temperature of 700 to 850° C. to form a uniform mixed melt; d. preparing the mixed melt into a flake aluminum alloy ingot by a casting process, or directly processing it into a flake aluminum alloy profile by an extrusion molding process; The aluminum alloy raw material is at least one of Al-Si, Al-Mg or Al-Zn alloys, or can be replaced by pure aluminum powder.

5. The method for preparing a basalt flake alloy according to claim 4, wherein: The particle size of the basalt flakes in step a is normally distributed, with an average particle size of 200-1200 nm, and a standard deviation of the particle size is less than 20% of the average particle size.

6. The method for preparing a basalt flake alloy according to claim 4, wherein: The surface metallization coating in step b is metallic zinc or metallic copper, wherein the thickness of the zinc coating is 10-50 nm, and the thickness of the copper coating is 10-70 nm.

7. The method for preparing a basalt flake alloy according to claim 4, wherein: The amount of basalt flakes added in step c is 5%-15% of the total mass of the melt, the stirring speed is 200-600 rpm, and the stirring time is 10-60 minutes.

8. The method for preparing a basalt flake alloy according to claim 4, wherein: The temperature of the extrusion molding process in step d is 400-550° C., the extrusion ratio is 10:1-30:1, and the molded product includes at least one of wire, strip, foil, plate, and rod.

9. The method for preparing a basalt flake alloy according to claim 4, wherein: The basalt scales further include a pretreatment step after step a: modifying the surface of the scales with a silane coupling agent, the modification temperature is 80-120° C., and the treatment time is 1-3 hours.

10. A basalt flake alloy, characterized in that: Prepared by the method described in any one of claims 4 to 9, its composition includes: an aluminum alloy matrix and surface metallized basalt flakes uniformly dispersed in the matrix; the volume fraction of the basalt flakes is 1%-25%, and the aspect ratio is 20:1-50:1.

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