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Device and method for preparing micro powder by atomizing molten metal through ultrasonic standing wave array

A molten metal, ultrasonic standing wave technology, applied in the field of metal atomization micropowder preparation, can solve the problems of incomplete powder atomization, low energy utilization rate, low atomization efficiency, etc., and achieve high atomization efficiency and energy utilization rate , The effect of complete atomization

Pending Publication Date: 2022-03-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a device and method for atomizing molten metal with an ultrasonic standing wave array for micropowder preparation, so as to solve the incomplete powder atomization caused by the low energy utilization rate of ultrasonic standing wave field atomization in the prior art, Problems such as low atomization efficiency

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  • Device and method for preparing micro powder by atomizing molten metal through ultrasonic standing wave array
  • Device and method for preparing micro powder by atomizing molten metal through ultrasonic standing wave array
  • Device and method for preparing micro powder by atomizing molten metal through ultrasonic standing wave array

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specific Embodiment approach 1

[0023] Specific implementation mode one: as Figure 1-Figure 3 As shown, this embodiment discloses a device for atomizing molten metal with an ultrasonic standing wave array for micropowder preparation, including an ultrasonic power supply 1, a high-temperature furnace 3, a discharge delivery pipe 5, a gas barrier nozzle 6, a powder collection box 7, The atomization sealing chamber 8, the inert gas cylinder 9, the atomization sealing chamber air pressure control system 10 and two groups of ultrasonic transducers 2; the two groups of ultrasonic transducers 2 are horizontally sealed through the side of the atomization sealing chamber 8 The wall is arranged in the atomization sealing chamber 8, and the high-temperature melting furnace 3 is fixed on the top cover in the atomization sealing chamber 8 (the atomization sealing chamber 8 includes a top cover and a chamber sealed with the top cover), and the high-temperature melting furnace 3 The top of the furnace communicates with th...

specific Embodiment approach 2

[0025] Specific implementation mode two: as Figure 1-Figure 3 As shown, this embodiment is a further description of specific embodiment 1. The main ultrasonic transducers 2a of the two groups of ultrasonic transducers 2 are located below the discharge conveying pipe 5, and the main ultrasonic transducers 2 of the two groups of ultrasonic transducers The axis of the ultrasonic transducer 2a intersects the axis of the discharge conveying pipe 5 (the ultrasonic standing waves generated by the two sets of ultrasonic transducers 2 are used to flatten the molten metal flow 12 flowing out of the discharge conveying pipe 5 to form a flat sheet , and breaks at the edges).

specific Embodiment approach 3

[0026] Specific implementation mode three: as figure 1 , figure 2 As shown, this embodiment is a further description of the specific embodiment 1. The installation axes of the auxiliary ultrasonic transducers 2b corresponding to each two of the two groups of ultrasonic transducers 2 are the same as those used by the main ultrasonic transducers. The edge of the molten metal flow 12 flattened by the sound field generated by the energy device 2a intersects (further applying sound pressure to the edge of the molten metal flow 12 to further atomize it into tiny droplets).

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Abstract

The invention discloses a device and method for preparing micro powder by atomizing molten metal through an ultrasonic standing wave array, and belongs to the field of metal atomized micro powder preparation. The two sets of ultrasonic transducers penetrate through the side wall of the atomization sealing chamber in a sealed mode, the high-temperature smelting furnace is fixed to a top cover in the atomization sealing chamber and communicated with a smelting furnace feeding port formed in the top cover, a discharging conveying pipe is arranged at the bottom of the high-temperature smelting furnace, and the powder collecting box is arranged below the discharging conveying pipe. The atomization sealing chamber is connected with the atomization sealing chamber air pressure control system and the inert gas cylinder, the ultrasonic power source is electrically connected with the two sets of ultrasonic transducers, each set of ultrasonic transducers comprises a main ultrasonic transducer and a plurality of auxiliary ultrasonic transducers, the two main ultrasonic transducers are oppositely arranged, and the two auxiliary ultrasonic transducers are oppositely arranged. The auxiliary ultrasonic transducers of each group of ultrasonic transducers are arranged in a circumferential array mode, the auxiliary ultrasonic transducers of the two groups of ultrasonic transducers are arranged in a one-to-one correspondence mode, and a gas barrier curtain nozzle is arranged between each group of ultrasonic transducers and the discharging conveying pipe. The method is used for preparing the molten metal micro powder.

Description

technical field [0001] The invention belongs to the field of metal atomized micropowder preparation, and in particular relates to a device and method for preparing micropowder by atomizing molten metal with an ultrasonic standing wave array. Background technique [0002] Ultrasonic standing wave atomization adopts two ultrasonic transducer emitters arranged oppositely, and the two sets of ultrasonic waves emitted oppositely form a standing wave field, which breaks the liquid flowing into it, without a large amount of gas consumption, and has a good role in the field of powder preparation. Application prospects. [0003] In the prior art, a pair of emitters of ultrasonic transducers are used to emit ultrasonic waves relative to each other. The cylindrical liquid flow enters the node position of the ultrasonic standing wave field, deforms and breaks into droplets on the flattened skirt, and the liquid flows under the action of surface tension. It forms a spherical shape and f...

Claims

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Application Information

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IPC IPC(8): B22F9/08
CPCB22F9/082B22F2009/0876B22F2202/01
Inventor 高胜东董国军郭思琪肖金锋周健王洪淼
Owner HARBIN INST OF TECH
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