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Molten metal droplet forming device and method of utilizing same to form molten metal droplets

A metal and molten droplet technology is applied in the field of tiny metal droplet forming devices, which can solve the problems of difficulty in producing metal droplets, limitation of the size of metal droplets, and difficulty in controlling the spraying of metal droplets, so as to achieve the effect of size control.

Active Publication Date: 2013-04-24
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the metal droplet ejection device disclosed in the literature has the following problems in the metal droplet ejection process: (1) The ejection device uses pulsed gas as the driving source, and it is difficult to precisely control the pulse gas pressure in the crucible during the ejection process, making the metal Droplet injection is difficult to control; (2) It is difficult for the injection device to produce metal droplets smaller than the nozzle size, and the size of the sprayed metal droplets is limited

Method used

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  • Molten metal droplet forming device and method of utilizing same to form molten metal droplets
  • Molten metal droplet forming device and method of utilizing same to form molten metal droplets
  • Molten metal droplet forming device and method of utilizing same to form molten metal droplets

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Embodiment 1

[0024]Example 1: Metal material injection at different pulse frequencies.

[0025] When using the device of the present invention to spray metal materials, the protective gas must be continuously fed into the coaxial gas supply pipeline 15 throughout the experiment to form a local hypoxic environment around the nozzle 5 .

[0026] When using the device of the present invention to carry out metal material injection, first set the heating temperature at 100°C above the melting point of the metal material, use the heating element 3 to heat the metal material until it is completely melted, and then pass through the coil 11 with pulse frequencies of 1 Hz, 2 Hz, 3Hz, 4Hz, 5Hz, 8Hz, 10Hz alternating current to generate the alternating magnetic field of the corresponding frequency, the impact rod 10 placed in the coil 11 will impact the upper end of the "T" rod 13 at the corresponding frequency, and the cylindrical rod 13- Stress waves are generated in b. The stress wave is transmitt...

Embodiment 2

[0028] Example 2: Metal material injection under different pulse widths. When using the device of the present invention to spray metal materials, the protective gas must be continuously fed into the coaxial gas supply pipeline 15 throughout the experiment to form a local hypoxic environment around the nozzle 5 .

[0029] When using the device of the present invention to spray metal materials, first set the heating temperature at 100°C above the melting point of the metal material, use the heating element 3 to heat the metal material until it is completely melted, and then pass through the coil 11 with pulse widths of 2 ms, 3 ms, and 4 ms respectively. , 5ms, 6ms, 8ms, and 10ms of alternating current to generate an alternating magnetic field of corresponding intensity, and the impact rod 10 placed in the coil 11 collides with the upper end of the "T"-shaped rod 13 in the magnetic field of corresponding intensity, and the cylindrical rod 13- Stress waves are generated in b, and ...

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Abstract

The invention discloses a molten metal droplet forming device and a method of utilizing the same to form molten metal droplets. The device and the method are used for solving the technical problem that size of molten metal drops formed by spraying by means of a molten metal drop spraying device is difficult to control. The technical scheme includes that a spherical energy focalizer in an axially concave shape is designed at the lower end of a cylindrical rod 13-b of a 'T'-shaped rod 13, by the focusing action of the 'T'-shaped rod energy focalizer, stress wave energy is enabled to intensively act on a free liquid level position of a nozzle outlet below a crucible to generate droplets, stress wave generated when an impact rod impacts the 'T'-shaped rod during droplet spraying is controlled, the size of the molten metal drops is determined by loaded stress wave, and metal droplets with the diameter smaller than that of spraying holes can be sprayed to achieve the purpose of controlling the size of the molten metal droplets by controlling relevant parameters generating the stress wave.

Description

technical field [0001] The invention relates to a metal droplet forming device, in particular to a tiny metal droplet forming device. It also relates to a method for forming tiny metal droplets by using the tiny metal droplet forming device. Background technique [0002] The metal droplet injection technology uses the injection device to generate a certain driving pressure in the metal fluid in the crucible, forcing the metal fluid material in the crucible to be sprayed from a tiny nozzle to form a single tiny metal droplet, so as to realize the precise distribution of trace metal materials and Fixed-point deposition has the advantages of high automation, low cost, no pollution, non-contact, and high utilization of raw materials. It has broad application prospects in the fields of complex and tiny metal parts forming, three-dimensional packaging, and rapid printing of microcircuits. [0003] refer to figure 1 , the document "Apparatus and method for generating droplets, Ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/08
Inventor 齐乐华陶院杨方罗俊晁艳普钟宋义马倩
Owner NORTHWESTERN POLYTECHNICAL UNIV
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