High-frequency vibration crushing method and powdery material

Abstract

The invention belongs to the technical field of material crushing processing, and particularly relates to a high-frequency vibration crushing method and a powdery material. The vibration crushing method comprises the following steps: preparing a material to be vibrated and crushed, high-frequency vibration equipment and a containing mold; the containing mold is provided with a containing cavity, the containing cavity is provided with an upward opening, and materials are located in the containing cavity through the opening. And the high-frequency vibration equipment applies vibration at a preset frequency to the materials so as to vibrate and crush the materials. Vibration energy intensively acts on the interior of materials, the crushing efficiency is improved, and energy waste is reduced. Meanwhile, the method is simple in process, and the production cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of material crushing and processing, and in particular relates to a high-frequency vibration crushing method and powdered material. Background Art

[0002] Currently, hard and brittle materials are those that possess high hardness but also high fracture toughness. These materials typically fracture easily when subjected to external forces, rather than undergoing plastic deformation. Due to their high hardness, wear resistance, and high-temperature resistance, these materials are widely used in a variety of industrial and technological fields, including cutting tools, electronics, aerospace, medical treatment, energy, and architectural decoration. However, to improve the machinability of hard and brittle materials, increase reaction efficiency, and reduce processing damage, they often require crushing.

[0003] Material crushing is an important research topic in the fields of mineral processing, building materials, and chemical engineering, aiming to improve production efficiency, reduce energy consumption, and improve product quality. Crushing hard and brittle materials is an inevitable process in many industrial applications, especially in the fields of material processing, ore mining, recycling, and reuse.

[0004] However, the crushing of hard and brittle materials currently faces challenges in terms of energy efficiency, crushing accuracy, cost, and environmental protection. Optimizing the crushing technology for hard and brittle materials and providing more efficient and sustainable solutions has become a key issue in modern industrial production. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a high-frequency vibration crushing method, aiming to solve the problem of how to crush materials and reduce costs.

[0006] To achieve the above objectives, the technical solution adopted in this application is:

[0007] In a first aspect, a high-frequency vibration crushing method is provided, which is used for vibrating and crushing materials. The high-frequency vibration crushing method comprises the following steps:

[0008] Prepare the material to be vibrated and crushed, high-frequency vibration equipment and accommodating mold;

[0009] The accommodating mold is provided with an accommodating cavity, the accommodating cavity has an opening arranged upward, and the material is located in the accommodating cavity through the opening;

[0010] The high-frequency vibration device applies vibration of a predetermined frequency to the material to vibrate and crush the material.

[0011] In some embodiments, the predetermined frequency ranges from 500 to 200,000 Hz.

[0012] In some embodiments, the high-frequency vibration device includes an ultrasonic vibration system and an ultrasonic punch connected to the ultrasonic vibration system at one end, and the other end of the ultrasonic punch extends into the accommodating cavity through the opening to apply the vibration of the predetermined frequency to the material.

[0013] In some embodiments, the ultrasonic punch applies vibration crushing to the material for a predetermined time, and the predetermined time ranges from 0.1 to 5 seconds.

[0014] In some embodiments, the ultrasonic punch applies vibration for multiple predetermined times to the material for crushing.

[0015] In some embodiments, the ultrasonic waves generated by the ultrasonic vibration system are longitudinal waves.

[0016] In some embodiments, the material to be crushed is washed and dried.

[0017] In some embodiments, the material is in block or rod form.

[0018] In some embodiments, the hardness of the material ranges from 100 to 5000 HV, and the fracture toughness of the material ranges from 1 to 50 MPa·m 1 / 2 .

[0019] In a second aspect, a powdered material is provided, wherein the powdered material is prepared using the high-frequency vibration crushing method.

[0020] The beneficial effects of this application are that by placing the material in a receiving mold and applying high-frequency vibration to the material through a high-frequency vibration device, hard and brittle materials can be effectively crushed. The vibration energy of this method is concentrated on the interior of the material, improving crushing efficiency and reducing energy waste. At the same time, the method is simple and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 1 is a flow chart of the high-frequency vibration crushing method provided in an embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the structure of an ultrasonic punch and a containing mold before crushing the material provided by another embodiment of the present application;

[0024] Figure 3This is a structural diagram of an ultrasonic punch and a containing die for crushing materials provided in another embodiment of the present application;

[0025] Figure 4 This is a schematic diagram of the structure after the ultrasonic punch and the accommodating mold provide another embodiment of the present application to crush the material;

[0026] Figure 5 This is a pressure curve diagram of a material during vibration crushing provided by another embodiment of the present application;

[0027] Figure 6 This is a temperature curve diagram of a material during vibration crushing provided by another embodiment of the present application;

[0028] Figure 7 Schematic diagram of particles of a silicon carbide block after being crushed by high-frequency vibration, provided in another embodiment of the present application;

[0029] Figure 8 Schematic diagram of particles of a glass block after being crushed by high-frequency vibration according to another embodiment of the present application;

[0030] Figure 9 This is a schematic diagram of particles of a molybdenum alloy block after being crushed by high-frequency vibration, provided in another embodiment of the present application.

[0031] Among them, the reference numerals in the figures are:

[0032] 10. Ultrasonic punch; 20. Accommodating die; 21. Accommodating cavity; 30. Material; 31. Powdered material. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit this application.

[0034] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0035] See also Figures 1 to 4 The embodiment of the present application provides a high-frequency vibration crushing method and a powdered material 31 prepared using the method. The high-frequency vibration crushing method can process a bulk material 30 into a powdered material 30, wherein the bulk material 30 can be a hard metal (such as chromium alloy, molybdenum alloy, tungsten alloy, carbide alloy, high carbon steel, tungsten steel alloy), intermetallic compound, ceramic (oxide ceramic, nitride ceramic, carbide ceramic), rock and mineral, glass and its derivative materials, natural gemstone and artificial gemstone, etc., which have high hardness but also have a certain degree of brittleness.

[0036] See also Figures 1 to 4 , the high-frequency vibration crushing method includes the following steps:

[0037] S1: Prepare the material 30 to be vibrated and crushed, a high-frequency vibration device, and a receiving mold 20; the receiving mold 20 can be fixed, for example, by bolts to a workbench, and the high-frequency vibration device can generate high-frequency ultrasonic vibrations and is placed next to the workbench;

[0038] S2: The accommodating mold 20 is provided with an accommodating cavity 21 , which has an opening facing upward, and the material 30 is located in the accommodating cavity 21 through the opening; the material 30 has a certain strength and hardness, and the opening is placed in the accommodating cavity 21 .

[0039] S3: The high-frequency vibration device is used to apply a predetermined frequency of vibration to the material 30 to vibrate and crush the material 30. It is understood that the high-frequency vibration device can generate high-frequency vibrations on the material 30, and the high-frequency vibration can be used to vibrate and crush the material 30, so that large-sized materials 30 can be crushed into small-sized materials 30, that is, the materials 30 are crushed into powder.

[0040] See also Figures 1 to 4 The high-frequency vibration crushing method provided in the embodiments of the present application effectively crushes hard and brittle materials by placing material 30 within a receiving mold 20 and applying high-frequency vibrations to the material 30 using a high-frequency vibration device. This method concentrates the vibration energy within the material 30, improving crushing efficiency and reducing energy waste. Furthermore, the method is simple and reduces production costs.

[0041] It can be understood that the high-frequency vibration crushing method provided in this application is a new, fast, efficient and simple process technology for crushing hard and brittle materials, which aims to optimize the crushing process, improve crushing efficiency, reduce energy consumption, and reduce crushing costs, thereby improving the crushing processing quality and production efficiency of hard and brittle materials.

[0042] See also Figures 1 to 4 In some embodiments, the predetermined frequency range is 500 to 200,000 Hz.

[0043] Optionally, the predetermined frequency may be 500 Hz, 872 Hz, 3456 Hz, 12789 Hz, 27543 Hz, 45128 Hz, 67234 Hz, 89456 Hz, 123789 Hz, 156432 Hz, 189567 Hz or 200000 Hz, which is not limited here and can be selected according to actual conditions.

[0044] It can be understood that by applying vibration in a predetermined frequency range of 500 to 200,000 Hz to the material 30 and utilizing the high-frequency vibration characteristics of the ultrasonic frequency range, it is possible to accurately act on the micro cracks of hard and brittle materials and induce their rapid fracture, thereby improving the crushing accuracy and efficiency.

[0045] See also Figures 1 to 4 In some embodiments, the high-frequency vibration device includes an ultrasonic vibration system and an ultrasonic punch 10 connected to the ultrasonic vibration system at one end, and the other end of the ultrasonic punch 10 extends into the accommodating cavity 21 through the opening to apply vibration of a predetermined frequency to the material 30.

[0046] Optionally, the ultrasonic vibration system includes an ultrasonic trigger, a transducer, and a booster. The ultrasonic vibration system is used to drive the ultrasonic punch 10 to vibrate at high frequency and transmit the vibration energy to the material 30 through the ultrasonic punch 10 .

[0047] The parameters of the ultrasonic vibration system are as follows:

[0048] Vibration frequency: 500~200000Hz;

[0049] Output power: up to 2500W;

[0050] Ultrasonic energy: 0~20000J;

[0051] Trigger pressure: 100N;

[0052] Output time: 0.01s~30s;

[0053] Power supply voltage: 220V;

[0054] Ultrasonic amplitude: 44μm (amplitude adjustable 30-100%);

[0055] Ultrasonic punch 10: Made of Ti alloy and steel punch;

[0056] Provided pressure: 0~600N.

[0057] It is also understood that during high-frequency vibration processing, ultrasonic punch 10 generates ultrasonic vibrations on hard and brittle materials to process and provide energy to the material 30 to be crushed. The predetermined frequency range is as high as 500 to 200,000 Hz. The ultra-high frequency impact will quickly induce fatigue cracks in multiple regions within the material. After the initial cracks form in the fatigue source region, the cracks will quickly propagate to the entire surface of the material 30, eventually breaking it.

[0058] Through high-frequency ultrasonic vibration, not only can bulk hard and brittle materials be broken within milliseconds, but powder particles with uniform structure at the millimeter to nanometer level can also be prepared.

[0059] It is understandable that the ultrasonic punch 10 repeatedly acts on the material 30, and the stress generated by the high-frequency vibration is a dynamic alternating stress. During the rapid and reciprocating impact process, the microscopic defects of the material 30 are more easily moved and redistributed, thereby reducing the formation of residual stress. At the same time, the high-frequency vibration causes the contact between the ultrasonic punch 10 and the hard and brittle material to be periodically interrupted. The time of each contact is extremely short, and the heat generated by friction cannot accumulate. This not only reduces energy consumption, but also avoids the high-temperature concentration in traditional continuous crushing. Therefore, the high-frequency vibration crushing of the embodiment of the present application is a low-temperature rise, low-stress processing process, which avoids the crushing of materials through external high heat or high stress, and provides a simple, large-scale, fast and economical method for obtaining hard and brittle powders.

[0060] Depend on Figure 6 It can be seen that the temperature of the material 30 rises sharply in a short period of time, and in about 0.16 seconds, the temperature rises from room temperature to a maximum temperature of 89.91 degrees Celsius, and then slowly drops to room temperature.

[0061] Optionally, the ultrasonic vibration system can drive the ultrasonic punch 10 to directly apply vibration to the material 30 through the opening of the accommodating cavity 21, so that the vibration energy transmission is more direct and efficient, reducing the energy loss during the transmission process and improving the crushing effect of hard and brittle materials.

[0062] See also Figures 1 to 4 In some embodiments, the ultrasonic punch 10 applies vibration crushing to the material 30 for a predetermined time, and the predetermined time ranges from 0.1 to 5 seconds.

[0063] Optionally, the predetermined time may be 0.1s, 0.23s, 0.67s, 1.12s, 1.89s, 2.34s, 2.78s, 3.45s, 4.01s, 4.56s, 4.92s or 5s, which is not limited here and can be selected according to actual circumstances.

[0064] It will be appreciated that the predetermined time is the time it takes for the ultrasonic punch 10 to apply one processing cycle to the material 30. Because the ultrasonic punch 10 applies an extremely short processing cycle to the material 30, a short and efficient crushing process can be achieved, shortening the processing cycle and improving production efficiency. The short vibration time effectively controls energy input, avoiding waste of the material 30 or dust generation caused by excessive crushing. Furthermore, because the ultrasonic punch 10 acts on the material 30 for an extremely short time, heat accumulation in the material 30 is avoided, preventing stress caused by high temperature concentration.

[0065] See also Figures 1 to 4 In some embodiments, the ultrasonic punch 10 applies vibration for multiple predetermined times to the material 30 to crush it.

[0066] Optionally, the ultrasonic punch 10 applies vibration crushing for multiple predetermined times, and through the segmented vibration action, further optimizes the crushing process of hard and brittle materials, makes the energy distribution more uniform, reduces the material damage caused by local stress concentration, and fully crushes the material 30, so that the small-particle material 30 formed is more uniform.

[0067] Depend on Figure 6 It can be seen that the vibration processing cycle is 0.16s and the maximum pressure is 14.37Mpa.

[0068] See also Figures 1 to 4 In some embodiments, the ultrasonic waves generated by the ultrasonic vibration system are longitudinal waves.

[0069] Alternatively, the ultrasonic vibration system utilizes longitudinal ultrasonic waves, which efficiently transmit vibration energy into the material 30 in a linear manner, inducing rapid fracture of hard and brittle materials along microcracks, thereby improving crushing efficiency and accuracy. Compared to shear waves or other vibration methods, longitudinal waves reduce energy scattering and energy loss during processing.

[0070] In some embodiments, the material to be crushed 30 is washed and dried.

[0071] Optionally, the material 30 may be cleaned with alcohol and dried by heating or hot air. By pre-treating the material 30 by cleaning and drying, impurities and moisture on the surface of the material 30 are effectively removed, thereby reducing adhesion or corrosion problems that may occur during the vibration crushing process and improving crushing efficiency and product quality.

[0072] See also Figures 1 to 4 In some embodiments, the material 30 is in the form of a block or a rod.

[0073] Optionally, the material 30 is in the form of a block or rod, making the high-frequency vibration crushing method more suitable for processing large-scale hard and brittle materials. The ultrasonic punch 10 applies high-frequency vibration to the material 30 to be crushed under a certain load, causing the material 30 to undergo a certain brittle fracture and breaking it into powder particles with smaller particle sizes. The vibration energy can effectively act on the interior of the block, inducing crack propagation and improving crushing efficiency. For example, during a single processing process, a block of material 30 can be directly placed in the accommodating chamber 21 and crushed by the ultrasonic punch 10. Therefore, compared with powder or granular material 30, the block-state material 30 can also reduce the pretreatment process, simplify the process flow, reduce production costs, and maintain efficient and environmentally friendly processing characteristics.

[0074] See also Figures 1 to 4 In some embodiments, the hardness of the material 30 ranges from 100 to 5000 HV; for example, 100 HV, 500 HV, 612 HV, 745 HV, 1038 HV, 1274 HV, 1593 HV, 1850 HV, 2126 HV, 2367 HV, 2589 HV, 2894, 3000 HV or 5000 HV, which is not limited here and can be selected according to actual conditions.

[0075] In some embodiments, the fracture toughness of the material 30 is in the range of 1 to 50 MPa·m 1 / 2 ; For example, 1Mpa·m 1 / 2 , 2Mpa·m 1 / 2 , 4Mpa·m 1 / 2 , 5Mpa·m 1 / 2 , 7Mpa·m 1 / 2 , 8Mpa·m 1 / 2 、10Mpa·m 1 / 2 、11Mpa·m 1 / 2 , 22Mpa·m 1 / 2 、34Mpa·m 1 / 2 or 50Mpa·m 1 / 2 There is no restriction here, you can choose according to the actual situation.

[0076] Optionally, by limiting the hardness (100-5000 HV) and fracture toughness (1-50 MPa·m 1 / 2 ) Optimizes vibration crushing parameters for hard and brittle materials with specific physical properties, ensuring efficient and precise crushing. Furthermore, the lower fracture toughness of hard and brittle materials makes them easier to break during high-frequency vibration crushing, unlike high-toughness materials that absorb large amounts of energy and are difficult to break, thereby improving the completeness of material crushing.

[0077] See also Figures 1 to 4 The present invention also proposes a powdered material 31, which is prepared by the above-mentioned high-frequency vibration crushing method. For the specific steps of the high-frequency vibration crushing method, please refer to the above-mentioned embodiment. Since the powdered material 31 adopts all the technical solutions of all the above-mentioned embodiments, it also has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0078] The powdered material 31 has uniform particle size and high quality, meeting the demands of refined applications in cutting tools, electronics, energy, and other fields. This method achieves efficient and environmentally friendly processing through high-frequency vibration crushing, significantly reducing energy consumption and production costs, and minimizing the dust and noise pollution associated with traditional crushing methods.

[0079] The following describes the process of obtaining powdered materials 31 of different materials by combining the above-mentioned high-frequency vibration crushing method:

[0080] Example 1

[0081] In this embodiment 1, a silicon carbide bulk hard and brittle material 30 is studied, silicon carbide powder particles are formed after being crushed by high-frequency vibration, and the particle size of the powder particles is analyzed through SEM diagrams.

[0082] Step 1: Select silicon carbide block hard and brittle material as the raw material. Its size can be a cube with a side length of 100 mm. Use alcohol to clean and dry it to remove oil and impurities to ensure its cleanliness without affecting the purity of the silicon carbide powder material 31 crushed by high-frequency vibration.

[0083] Step 2: Place the cleaned and dried silicon carbide block in the receiving mold 20 on the workbench, and place the ultrasonic punch 10 of the high-frequency vibration device against the surface of the material 30 to fix the position of the silicon carbide block;

[0084] Step 3: Set the parameters of the high-frequency vibration equipment to 100J of ultrasonic energy, 500kPa of working pressure, 100N of trigger pressure, and 100% of amplitude. Then, the ultrasonic punch 10 is brought into contact with the surface of the silicon carbide block. After the contact pressure reaches the trigger pressure, high-frequency vibration is performed to crush the silicon carbide block to obtain silicon carbide powder material 31. Figures 2 to 4 shown.

[0085] Step 4: Apply two groups of different high-frequency vibration cycles as a comparison of the powder particle size, that is, apply one high-frequency vibration cycle to a silicon carbide block hard and brittle material, and then apply two high-frequency vibration cycles to another silicon carbide block hard and brittle material, respectively, to obtain two powdered materials 31, such as Figure 7 shown.

[0086] Step 5: Take out the silicon carbide powder material 31 after high-frequency vibration crushing, and use SEM to observe the microscopic morphology of the powder particles and analyze the particle size of the powder particles. Figure 7 shown.

[0087] Figure 7 (a) is the powdered material obtained after one processing cycle, Figure 7 (b) is a powdery material obtained by performing two processing cycles, Figure 7 The particle size of (b) is significantly smaller than Figure 7 (a) The particle size was analyzed by SEM. Figure 7 (c) shows that the silicon carbide block is broken into nano-sized silicon carbide powder particles after high-frequency vibration.

[0088] Step 6: The parameter settings of the above-mentioned high-frequency vibration equipment only explain the parameters used in the present invention. Parameters such as ultrasonic energy, working air pressure, trigger pressure, amplitude, and number of high-frequency vibration cycles will affect the particle size of the powder particles of the hard and brittle materials after high-frequency crushing. The corresponding parameter settings should be made according to the actual powder particle size requirements.

[0089] Example 2

[0090] This Example 2 studies the glass block hard and brittle material, and the glass powder particles formed after being crushed by high-frequency vibration, and analyzes the particle size of the powder particles through SEM diagrams.

[0091] Step 1: Select a glass block of hard and brittle material as the raw material. Its size can be a cube with a side length of 100 mm. Use alcohol to clean and dry it to remove oil and impurities to ensure its cleanliness without affecting the purity of the glass powder material 31 crushed by high-frequency vibration.

[0092] Step 2: Place the cleaned and dried glass block in the receiving mold 20 on the workbench, and place the ultrasonic punch 10 of the high-frequency vibration device against the surface of the material 30 to fix the position of the glass block;

[0093] Step 3: Set the parameters of the high-frequency vibration equipment to 100 J of ultrasonic energy, 500 kPa of working pressure, 100 N of trigger pressure, and 100% of amplitude. Then, the ultrasonic punch 10 is brought into contact with the surface of the glass block. After the contact pressure reaches the trigger pressure, high-frequency vibration is performed to crush the glass block to obtain glass powder material 31. Figures 2 to 4 shown.

[0094] Step 4: Apply two groups of different high-frequency vibration cycles as a comparison of the powder particle size, that is, apply one high-frequency vibration cycle to a glass block hard and brittle material, and then apply two high-frequency vibration cycles to another glass block hard and brittle material, and obtain two powder materials 31 respectively, as shown in FIG. Figure 8 shown.

[0095] Step 5: Take out the glass powder material 31 after high-frequency vibration crushing, and use SEM to observe the microscopic morphology of the powder particles and analyze the particle size of the powder particles. Figure 8 shown.

[0096] Figure 8 (a) is the powdered material obtained after one processing cycle, Figure 8 (b) is a powdery material obtained by performing two processing cycles, Figure 8 The particle size of (b) is significantly smaller than Figure 8 (a) The particle size was analyzed by SEM. Figure 8 (c) shows that the glass block is broken into micron-sized glass powder particles after high-frequency vibration.

[0097] Step 6: The parameter settings of the above-mentioned high-frequency vibration equipment only explain the parameters used in the present invention. Parameters such as ultrasonic energy, working air pressure, trigger pressure, amplitude, and number of high-frequency vibration cycles will affect the particle size of the powder particles of the hard and brittle materials after high-frequency crushing. The corresponding parameter settings should be made according to the actual powder particle size requirements.

[0098] Example 3

[0099] This Example 3 studies the molybdenum alloy block hard and brittle material, and the molybdenum alloy powder particles formed after high-frequency vibration crushing, and analyzes the powder particle size through SEM diagram.

[0100] Step 1: Select a molybdenum alloy block of hard and brittle material as the raw material. Its size can be a cube with a side length of 100 mm. Use alcohol to clean and dry it to remove oil and impurities to ensure its cleanliness without affecting the purity of the molybdenum alloy powder material 31 crushed by high-frequency vibration.

[0101] Step 2: Place the cleaned and dried molybdenum alloy block in the receiving mold 20 on the workbench, and place the ultrasonic punch 10 of the high-frequency vibration device against the surface of the material 30 to fix the position of the molybdenum alloy block;

[0102] Step 3: Set the parameters of the high-frequency vibration equipment to 100 J of ultrasonic energy, 500 kPa of working pressure, 100 N of trigger pressure, and 100% of amplitude. Then, the ultrasonic punch 10 is brought into contact with the surface of the molybdenum alloy block. After the contact pressure reaches the trigger pressure, high-frequency vibration is performed to crush the molybdenum alloy block to obtain a molybdenum alloy powder material 31. Figures 2 to 4 shown.

[0103] Step 4: Apply two groups of different high-frequency vibration cycles as a comparison of the powder particle size, that is, apply one high-frequency vibration cycle to a molybdenum alloy block hard and brittle material, and then apply two high-frequency vibration cycles to another molybdenum alloy block hard and brittle material, and obtain two powder materials 31 respectively, as shown in FIG. Figure 9 shown.

[0104] Step 5: Take out the molybdenum alloy powder material 31 after high-frequency vibration crushing, and use SEM to observe the microscopic morphology of the powder particles and analyze the particle size of the powder particles. Figure 9 shown.

[0105] Figure 9 (a) is the powdered material obtained after one processing cycle, Figure 9 (b) is a powdery material obtained by performing two processing cycles, Figure 9 The particle size of (b) is significantly smaller than Figure 9 (a) The particle size was analyzed by SEM. Figure 9 (c) shows that the molybdenum alloy block is crushed by high-frequency vibration to form molybdenum alloy powder particles with micron size.

[0106] Step 6: The parameter settings of the above-mentioned high-frequency vibration equipment only explain the parameters used in the present invention. Parameters such as ultrasonic energy, working air pressure, trigger pressure, amplitude, and number of high-frequency vibration cycles will affect the particle size of the powder particles of the hard and brittle materials after high-frequency crushing. The corresponding parameter settings should be made according to the actual powder particle size requirements.

[0107] The above are merely optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. A high-frequency vibration crushing method for vibrating and crushing materials, characterized in that: The high-frequency vibration crushing method comprises the following steps: Prepare the material to be vibrated and crushed, high-frequency vibration equipment and accommodating mold; The accommodating mold is provided with an accommodating cavity, the accommodating cavity has an opening arranged upward, and the material is located in the accommodating cavity through the opening; The high-frequency vibration device applies vibration of a predetermined frequency to the material to vibrate and crush the material.

2. The high-frequency vibration crushing method according to claim 1, characterized in that: The predetermined frequency range is 500 to 200,000 Hz.

3. The high-frequency vibration crushing method according to claim 1, wherein: The high-frequency vibration device includes an ultrasonic vibration system and an ultrasonic punch connected to the ultrasonic vibration system at one end, and the other end of the ultrasonic punch extends into the accommodating cavity through the opening to apply the vibration of the predetermined frequency to the material.

4. The high-frequency vibration crushing method according to claim 3, characterized in that: The ultrasonic punch applies vibration and crushing to the material for a predetermined time, and the predetermined time ranges from 0.1 to 5 seconds.

5. The high-frequency vibration crushing method according to claim 3, characterized in that: The ultrasonic punch applies vibration for a plurality of predetermined times to the material for crushing.

6. The high-frequency vibration crushing method according to any one of claims 1 to 5, characterized in that: The ultrasonic waves generated by the ultrasonic vibration system are longitudinal waves.

7. The high-frequency vibration crushing method according to any one of claims 1 to 5, characterized in that: The material to be crushed is washed and dried.

8. The high-frequency vibration crushing method according to any one of claims 1 to 5, characterized in that: The material is in block or rod shape.

9. The high-frequency vibration crushing method according to any one of claims 1 to 5, characterized in that: The hardness of the material ranges from 100 to 5000 HV, and the fracture toughness of the material ranges from 1 to 50 MPa·m 1 / 2 .

10. A powdery material, characterized in that: The powdered material is prepared using the high-frequency vibration crushing method according to any one of claims 1 to 9.

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