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Metal molten drop ejecting device and method for ejecting high-melting-point metal molten drops using same

A technology of spraying device and molten metal, which is applied in the field of spraying high-melting-point metal droplet and high-melting-point metal droplet spraying device, which can solve the problems of poor stability and achieve the effect of ensuring stability

Active Publication Date: 2012-09-19
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the disadvantages of poor stability of the injection forming process of the existing metal droplet ejection device when spraying high-melting point light active metal droplets, the present invention provides a metal droplet ejection device

Method used

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  • Metal molten drop ejecting device and method for ejecting high-melting-point metal molten drops using same
  • Metal molten drop ejecting device and method for ejecting high-melting-point metal molten drops using same
  • Metal molten drop ejecting device and method for ejecting high-melting-point metal molten drops using same

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Embodiment Construction

[0025] refer to figure 1 , the metal droplet ejection device of the present invention includes a heater 6, a crucible 7, a nozzle 9, an induction block 2, a cooling block 4, an exciting rod 1, an electromagnetic coil 3, a heat shield 5, a laser 12, a photoelectric sensor 13, a photoelectric The signal processing unit 14, the excitation driver 15, the thermocouple 16, the filter plate 17, and the excitation rod 1 pass through the cooling plate 4 from top to bottom, and a pressure inlet 18 is provided on the wall of the crucible 7 near the top, and the bottom of the crucible 7 passes through the high temperature A nozzle 9 is bonded with an adhesive, a heater 6 is installed on the outside of the crucible 7, and a thermocouple 16 is installed on the outside of the bottom of the crucible. After the temperature of the crucible is detected by the thermocouple 16, it is transmitted to the heating controller 19, and the heating controller 19 controls the temperature of the crucible a...

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Abstract

The invention discloses a metal molten drop ejecting device and a method for ejecting high-melting-point metal molten drops using the same. The metal molten drop ejecting device is used for solving the technical problem that the existing metal molten drop ejecting device is poor in stability in the ejecting forming process when ejecting high-melting-point light reactive metal molten drops. The metal molten drop ejecting device maintains stable ejecting of the high-melting-point metal molten drops by means of a nozzle automatic dredge device and an ejecting state detection system. The nozzle dredge device and a metal molten drop ejecting state monitoring and feedback system for high-melting-point metal ejecting are adopted; when the molten drop ejecting state monitoring and feedback systemdetects unstable ejecting state and transmits cleaning signals, an excitation rod is lowered, large positive or negative pressure is led into an inner channel of the excitation rod instantly, so thatmolten metal or gas at the position of a nozzle flows fast to bring out scale cinder or impurities adhered onto the inner wall of the spraying orifices, the aim of cleaning and dredging tiny nozzles can be achieved, and accordingly the ejecting forming process of high-melting-point metal molten drops is stable.

Description

technical field [0001] The invention relates to a metal drop spraying device, in particular to a high melting point metal drop spraying device. The invention also relates to a method for spraying high-melting-point metal droplets by the metal droplet spraying device. Background technique [0002] The use of controlled injection of molten droplets is expected to realize direct rapid forming of metal complex parts / components from metal raw materials. Its basic working principle is to use an actuator to generate a momentary pulse pressure inside the melting crucible, so that the melt is sprayed out through the tiny nozzle at the bottom of the crucible to form a single metal droplet, and then the droplet is accurately deposited on the moving substrate According to a certain deposition path, layers are piled up at the preset position on the surface, and finally a complex metal entity is formed. [0003] refer to figure 2 , the document "Apparatus and method for generating drop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/08B22F3/115
Inventor 齐乐华罗俊钟宋义周计明杨方
Owner NORTHWESTERN POLYTECHNICAL UNIV
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