TW506867B - Method for producing nano-grade powder by ultrasonically-reinforced submerged arc vacuum oscillation and device thereof - Google Patents

Abstract

The present invention provides a method for producing a nano-grade ultra-fine powder material, a method for producing a nano-grade powder by ultrasonically-reinforced submerged arc vacuum oscillation, and a device thereof. The method is characterized in that: a metal electrode and an ultrasonic oscillator are installed in the vacuum chamber of an electric arc system, in which the vacuum chamber uses a deionized water or a discharge processing liquid as an insulative liquid, the metal material is instantly vaporized by an electric arc discharge, and an ultrasound oscillator oscillates the insulative liquid concurrent to the electric arc discharge; together with the low pressure environment in the vacuum chamber, the vaporized metal is liable to leave the substrate and depart from the high temperature region by the impact from the ultrasonic oscillatorand furthermore the insulative liquid at the low pressure environment in the vacuum chamber is liable to chill the vaporized metal so that the vaporized metal can be promptly solidified at a low temperature and inhibit the growth phenomenon of nucleation and thus a nano-grade powder can be obtained; and according to the present invention, the material's vaporization environment is within a cooling liquid such that the pressure and the temperature are easily controllable, and furthermore the variables of the ultrasonic oscillation are controlled so that the powder has a uniform and precise dimension.

Description

506,867, V. Description of the invention α) I. Creative background ^ This fantasy series provides a submerged arc vacuum oscillation nano-powder manufacturing method and machine structure. The structure of the bird's powder is composed of particles with a grain size of 1 to Ϊ〇〇ηπι. The composition of the nano-materials is because the grain size of the nano-material is close to the wavelength of light and has a large surface area. At the same time, its atomic structure is not the same as that of ordinary crystalline or amorphous materials, so it has a special light. Physical and chemical properties, such as magnetism, have become the building blocks of new materials and new opto-electromagnetic components; ultrafine particles of nanomaterials have large surface energy surface effects and discontinuous electronic energy levels ( Volume effect), which makes the nano-scale particles have better mechanical and physical properties than traditional blocks. Τ \ Said hardness and hardness, low melting point, and special optical properties (V extension f first, reverse first), etc. It has aroused international research interest in capturing social media = input ^, and has become widely used in the materials industry. It has the results of induction in structure, machinery, light, electricity, and magnetism. Its main characteristics are: , Structure Γ There are atoms with a structure different from the general solid crystal phase or amorphous phase. Traditional grain or amorphous materials with the same composition have different properties. Bamboo, but it does make metal toilets that could not be mixed originally. ¥ Gold. Due to these characteristics, the four compounds are mixed, and the nano-structured materials can have physical properties; among them, the mechanism of changing materials and 506.867, V. Description of the invention (2) Mechanical properties such as material strength and residual behavior; Physical properties such as strong magnetism Due to its special properties, it has been developed into applications, so the research and development of nanometer materials with nanometer ultrafine powders should grow fast and the limits of nanometer size powder engineering are advancing, coupled with cutting-edge systems, especially in nanometer size powder related products. Therefore, nano-scale ultra-fine powder requires the main electron beam, laser or plasma vapor deposition method, liquid rapid condensation method, reverse and electrochemical deposition method that are known for nano structural materials. Among them, the current synthesis technology of gas generation 'has been nearly turned into commercial products of metal ultrafine particles and thick-film conductive or resistive powders. An important technology of porcelain ultrafine powder. The main manufacturing technology of granules. So far, no material that has been buried in the cooling liquid and will be vaporized in the instant will be powdered (Nanocrystall, this creation is to invent a vacuum powder material to meet demand. Among them, the modulus, ductility, abrasion properties and high thermal conductivity, High diffusivity, etc. For important new functional materials, I have been widely used in the world and across fields. Continuous development in the field, continuous demand, continuous production of large-scale production technology, manufacturing technology, and rapid and large-scale development are required. After that, the number of mass-producers grows faster and more and more. The manufacturing methods are: gas condensation synthesis method, product method, mechanical alloy method, molecular beam remote sputtering method, sol-gel method, and coagulation synthesis technology. It dates back to 60 years, but the vacuum vacuum metallurgy company already has a market. It is mainly used in the magnetic memory material sol-gel co-precipitation method. It is used for mass production. Arc vaporization, that is, the method of condensation, to produce nano-grade ultra-ine materials (NCM). 0 is a submerged arc oscillation method to produce nano-scale ultra-microphysics, so that the cooling liquid will be instantly Vaporization

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506867 1 «V. Description of the invention (3) Material condensing and nucleation 'and the electrode is disturbed by the oscillating vibration of the ultrasonic vibration, so that the material can be condensed and nucleated to obtain finer and more uniform nanometer-sized particles. The material is buried in a vacuum cooling liquid to initiate arc vaporization. The cooling liquid will be condensed by the vaporized material in an instant to produce a nano-grade ultrafine powder material. The schematic diagram of its principles and features is shown in Figure 1. Further technology The principle is explained in the creative overview.

Page 7 506867, V. Description of the invention (4) --- 贰, creation overview This creation is the invention of a nano-powder vacuum submerged arc oscillation manufacturing method and machine structure; it is mainly based on the vacuum system [1], pressure balance control system [2], control valve one [3], vacuum chamber [4], control valve two [5], control valve three [6], low temperature cooler [7], coolant vacuum pump system [8], coolant [9], raw materials [10], arc starter [η], ultrasonic oscillator [12], and amplifier [13]; the vacuum helper [1] draws the vacuum chamber [4] into a low pressure The vacuum environment; the pressure balance control system [2] maintains the pressure in the vacuum chamber [4] when the arc is initiated to vaporize the material; the arc in the vacuum chamber [4] vaporizes the material, which is instantly cooled by the cooling liquid to condense to form a nucleus. Meter-level ultra-fine powder material; control valve one [3] controls the pressure balance control system [2] connected to the vacuum chamber [4]; control valve two [5] controls the outlet flow and pressure of the low temperature cooler [7] , Make the pressure in the low-temperature cooler [7] appropriate, and Does not boil; Control valve three [6] controls the coolant vacuum pump system [8] The inlet flow rate makes the pressure in the low temperature cooler [7] appropriate; the low temperature cooler [7] discharges the heat of the submerged arc to maintain the vacuum The temperature in the cavity [4] is constant; the coolant vacuum pumping system [8] circulates the coolant [9] and establishes the pressure in the low-temperature cooler [7]; the arc initiator [11] initiates an arc to vaporize the material; The operation of the sonic oscillator [1 2] causes the electrodes to oscillate; the amplifier [1 3] can increase the amplitude of the ultrasonic vibrator [1 2]; the detailed method principle and characteristics are as follows:

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Via the material [10] submerged in the cooling fluid [9] in the vacuum chamber [4], the arc 11 will cause the arc to vaporize the material, and the cooling fluid will be instantly

^ = Forest material condenses and nucleates. The operation of the ultrasonic vibrator [12] causes the arc to swell. The vibration energy of the ultrasonic oscillator enables the electricity to generate 2 kg of vaporized metal in the high-temperature melting zone to obtain moderate disturbances and shocks. The "melting zone" allows the surrounding cooling liquid to obtain a good low-temperature cooling effect on the vaporized metal to inhibit the growth of metal particles during solidification, so that the 2 nucleated particles can be more finely and uniformly distributed, so that more fine particles can be obtained. Structural material powder. In addition, the ultrasonic oscillator can also avoid the discharge-concentration's removal of material and shorten the entire process time. The size of nano-sized ultra-fine powder particles is controlled by the pressure and temperature of the cooling liquid [9] in the vacuum chamber [4]. Because the raw material [丨 〇] vaporization environment of this method is in the liquid cooling liquid [9] Its pressure and temperature are easy to control. The size of the powder obtained is uniform and accurate. The raw material [1 0] is buried in the cooling liquid [9] in the vacuum chamber [4]. Its heat transfer includes conductive convection and phase change, so the powder is quickly formed, which is an excellent method for mass production.

The powder is formed in the cooling liquid [9] in the vacuum chamber [4], that is, dispersed in the cooling liquid [9]. This saves the powder dispersion process and simplifies the complexity of powder transportation. The temperature of the coolant [9] is controlled by the circulation temperature of the low-temperature cooler [7], which has an excellent cooling temperature control effect on the raw materials [10] and the machine itself. Therefore, both the raw material [10] and the machine body are temperature-controlled precisely, that is, the temperature-control equipment is not only simpler and more precise than traditional ones.

Page 9 506867 V. Description of the invention (6) Detailed description of reference and creation The new structure and production principle provided by this creation, its characteristics and components, including · [Illustration number] Figure 1 Ultrasonic enhanced submerged arc vacuum oscillation Nano powder manufacturing method and machine are not intended. Figure 2. Ultrasonic enhanced submerged arc vacuum oscillation. Nanometer powder produced through transmission electron microscope (TEM). [Schematic description number] Vacuum helper [1] Pressure balance control system [2] ] Control valve one [3] Vacuum chamber [4] Control valve two [5] Control valve three [6] Low temperature cooler [7]

Page 10 506867 «» V. Description of the invention (7) Coolant vacuum pump system [8] Coolant [9] Raw materials [1 0] Arc starter [11] Ultrasonic oscillator [1 2] Amplifier [1] 3] The process and equipment of the ultrasonic enhanced vacuum submerged arc method are as follows. The arc starter [11] is an arc heating system (E1 ectrica 1).

Discharge Arc Heating System) to control heating sources of different voltages and currents to control different conditions of the heating source. The parameter control system uses the pressure balance control system [2] to control the accuracy and stability of the pressure; the low temperature cooler [7], the coolant vacuum pump system [8], and the coolant [9] to control the temperature accurately and stably, Because the pressure and temperature are easy to control, the size of the powder obtained can be controlled uniformly and accurately. The detailed working principle is as follows: vacuum and machine parts [1], pressure balance control system [2], control valve one [3], vacuum chamber [4], control valve two [5], control valve three [6], Low temperature cooler [7], coolant vacuum pumping system [8], coolant [9], raw materials / 10] two arc starters [11], ultrasonic oscillator [12] and amplifier ^ 3] fa "The vacuum system draws the vacuum chamber into a low-pressure vertical space: = Controlled by the initiation of an arc to cool and condense the material to form a nucleus and the material is vaporized. The cooling air is not super-fine powder material between the air; Department Control

506,867, V. Description of the invention (8) The outlet flow and pressure of the pressure balance control system and the vacuum temperature cooler are equal and do not boil; the three series of control valves control the pressure in the low temperature cooler to maintain the pressure in the vacuum chamber. The temperature of the cooling liquid circulation and the establishment of low temperature cooling will vaporize the material; the ultrasonic oscillator oscillates and perturbs the condensed nuclear energy into a powder of structural material with a meter level. The part of the manufacturing method is mainly a control system in which the heating system is used to control the operation of the ultrasonic oscillator to make the nuclear energy smaller. The ultrasonic rod has a frequency that can be adjusted, such as frequency devices, raw material rods, and fixtures. When the largest coagulation and nucleation occurs between the raw material rods of the arc, due to the oscillating disturbance, the parameter control system is further configured to control the accuracy and stability of the pressure; the pump system and the cooling liquid are controlled to control the temperature easily. The manufacturing method, the preliminary result obtained is shown in Figure 1, which can show the connection of the 60nm cavity; the second control valve is controlled low, so that the pressure in the low-temperature cooler can be adjusted to the inlet of the coolant vacuum pump system. Low temperature cooler fixes the heat of the submerged arc; the pressure in the vacuum pump system of the coolant; the arc trigger and the action of the booster cause the electrode to be small, and more uniform distribution can be obtained. Voltage and current arc heating heat source temperature is different. At the same time, the electrode generates oscillating disturbance to make the condensed wave oscillator amplifier connect the raw materials. Adjust to the ultrasonic oscillator and increase the overall resonance frequency to achieve the relative electrical movement to make the raw material being vaporized more fine. Nano-powder manufacturing method; that is, the use of a pressure balance control system, the use of a low-temperature cooler, and a coolant vacuum It is accurate and stable. Due to the uniform and precise and precise manufacturing method of pressure and temperature, the current transmission electron microscope (TEM) image shows the nanometer particles of Rude have a particle size of about 506.867. V. Description of the invention (9) Powder collection system The main method is to induce the arc (Electricai Ar /, Vaporization) in the coolant [9] in the cavity [4] of the raw material. At this time, the coolant [9] will condense the vaporized material in an instant (Condensation) Many small gold particles can be obtained. The advantage of this method is that the metal particles are stored directly in the liquid: the particles can be taken directly from the cooling liquid [9] to the collection area to distinguish them. And, what is the temperature and pressure of the storage solution [9]? The small crystals can be obtained only when the pot priest Japanese industry and the mouth plus a system, and the growth is inhibited by the second and third growth. Regeneration, ultrasonic disturbance energy ί:; Π: ΓΓΐ? Good effect. Heat source of the arc heating system = main high power, good arc stability, stable control part and mature technology. The vacuum potential of this creation has been successfully developed Based on the arc nanometer process technology, further follow-up research results are made on the nanometer process technology; the electrodes and the ultrasonic oscillator are assembled in the true cavity of the arc system, and 'true == off = is the insulating liquid, Metal materials are instantaneously melted and melted due to electricity: discharge, and when they are discharged, the vaporized metal is impacted by the perturbation energy of the ultrasonic vibrator, and it is easy to deviate from the melting high temperature area, and then it is straight and fast! After solidifying at low temperature and controlling its nucleation, tiny particles with nanometer scale can be obtained, and the particle size is more uniform. This creation is based on the development of low-cost process technology. The ultrasonic oscillator and low-temperature circulation system are described in page 13 of the 506867 V. Invention Description (ίο), so that the technical ability to produce nano particles can be improved. Promote the uniform dispersion of nano particles in the solution, have reached the industry production technology, improve the efficiency, reduce the cost requirements, and should already be progressive, economical and practical 0

Page 14 506867, V. Description of the invention (π) The diagram briefly explains the new structure and manufacturing principle provided by this creation, its characteristics and components, including: [Schematic description number] Figure 1 Ultrasonic enhanced submerged arc vacuum oscillation Rice powder manufacturing method and machine are not intended. Figure 2 Ultrasonic enhanced submerged arc vacuum oscillation nanometer powder made through the transmission electron microscope. [Schematic description number] Vacuum help [1] Pressure balance control system [2] Control valve one [3] Vacuum chamber [4] Control valve two [5] Control valve three [6] Low temperature cooler [7]

Page 15 506867 V. Description of the invention (12) Coolant vacuum pumping system [8 Coolant [9] Raw materials [1 0] Arc starter [11] Ultrasonic oscillator [1 2] Amplifier [1 3]

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Claims (1)

5068671 Sixth, the scope of patent application ^ A variety of ultrasonic enhanced submerged arc vacuum oscillation nanometer powder manufacturing machines, mainly based on vacuum help, pressure balance control system, control valve one, vacuum chamber, control valve two, control valve three, low temperature cooler, Coolant vacuum pumping system j cooling fluid, raw materials, arc starter, ultrasonic oscillator and amplifier = finished, in which the vacuum pumping system draws the vacuum chamber into a low-pressure vacuum environment; the pressure balance control system maintains the vacuum chamber at Initiated arc = stable; arc in the vacuum chamber vaporizes the material and is instantly cooled 1 2 3; 丄 Asia Ii is formed into nano-grade ultra-fine powder materials; the control valve is a series of control pressures; the system is connected to the vacuum chamber The second control valve controls the low-temperature cooling flow and pressure, so that the pressure in the low-temperature cooler is appropriate, and the non-valve i system controls the inlet flow of the coolant vacuum pumping system so that the low-dimensional i = straight swelling force is appropriate; the low-temperature cooler Dissipate the heat of the submerged arc to the pressure in the cooler; the arc initiator initiates the arc to form the material. The action causes the electrode to produce a "turbulent nano-level structural material powder that causes coagulation to obtain a more uniform distribution. Vacuum oscillation of the nanometer powder manufacturing method; the main arc heating system is the heating source. The condensed nuclear energy can be produced more finely by connecting raw material rods, the frequency of which can be adjusted. 1 · An ultrasonic enhanced submerged arc should be controlled by different voltages and currents to control the temperature of the heat source. Different actions cause the electrodes to oscillate and perturbate; the amplifier of the ultrasonic oscillator 2 is adjusted when the frequency is adjusted to ultrasonic oscillation 3 Equal the overall resonance frequency, and the sixth, patent-pending fan® produces the largest relative motion, making the raw materials of the two rice daggers condensed and nucleated into smaller nucleus. Due to the vibration, the repeated force balance control system is used. The parameter control system is the temperature and temperature of the pump and the vacuum pump system of the cold liquid and the cooling liquid can be uniformly and precisely manufactured. The method is: / The degree of powder obtained is easy to control. The ultrasonic enhanced submerged arc vacuum oscillation 4 manufacturing machine described above, in which the ultrasonic oscillator is connected to the arc initiator and placed in a vacuum chamber or a structure in a vacuum chamber. 4. The ultrasonic enhanced submerged arc vacuum oscillating nano powder manufacturing machine as described in item 1 of the application scope, wherein the raw materials are buried in a vacuum chamber, and the cooling liquid can be circulated outside or inside the cryocooler. Constructor. 5 · The ultrasonic enhanced submerged arc vacuum oscillation nanometer powder manufacturing machine as described in the application No. 1 of the Fan Garden, in which the 疋 negative electrode is made in a linear shape to achieve a small current and low voltage bow. 6. Ultrasonic enhanced submerged arc vacuum oscillation as described in the application No. 2 of the Fan Garden. Nano-powder beam system = method; where the direction of oscillation of the amplifier of the ultrasonic oscillator can be vertical or horizontal. Page 18