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Large-draw-ratio thick-wall array micro-runner tube electrode, manufacturing method of large-draw-ratio thick-wall array micro-runner tube electrode, electroforming core die used for manufacturing tube electrode and manufacturing method of electroforming core die

A technology of large aspect ratio and micro-channel, which is applied in the manufacture of microfluidic pipe electrodes with large aspect ratio and thick-walled array, electroformed mandrel, electroformed mandrel, and the production of microfluidic array with large aspect ratio and thick wall In the field of tube and tube electrodes, it can solve problems such as difficult to load high-speed jets, thin wall of micro tube electrodes, poor rigidity, etc., and achieve the effects of improving product discharge efficiency and processing efficiency, improving stream focus, and enhancing anti-interference ability

Active Publication Date: 2020-09-29
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a large aspect ratio thick-walled microfluidic channel tube electrode and its manufacturing method, and solve the problem of thin wall, poor rigidity and difficult loading of microtube electrodes in the prior art. High-speed jet and other technical issues

Method used

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  • Large-draw-ratio thick-wall array micro-runner tube electrode, manufacturing method of large-draw-ratio thick-wall array micro-runner tube electrode, electroforming core die used for manufacturing tube electrode and manufacturing method of electroforming core die
  • Large-draw-ratio thick-wall array micro-runner tube electrode, manufacturing method of large-draw-ratio thick-wall array micro-runner tube electrode, electroforming core die used for manufacturing tube electrode and manufacturing method of electroforming core die
  • Large-draw-ratio thick-wall array micro-runner tube electrode, manufacturing method of large-draw-ratio thick-wall array micro-runner tube electrode, electroforming core die used for manufacturing tube electrode and manufacturing method of electroforming core die

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Embodiment 1

[0049] A kind of large aspect ratio thick wall array microfluidic tube electrode of the present invention, see figure 1 As shown, the tube electrode 5 includes an electrode base 51, and the inside of the electrode base 51 includes an array of microchannels, the inner diameter of which is less than or equal to 50 μm, the aspect ratio greater than or equal to 40, and the wall thickness greater than or equal to 150 μm. 52 and the output end, wherein the input end is used as the inlet of the electrolyte, and the output end is used as the outlet of the electrolyte, and all the input ends 52 of the array micro-channel are located on one side surface of the electrode substrate, and all the output ends of the array micro-channel are located at On the surface of the other side of the electrode base, the input end 52 has a chamfered structure to facilitate the electrolyte to be pressed into the micro-channel from the input end and then ejected from the output end.

[0050] The length, w...

Embodiment 2

[0055] In order to realize precision electroforming and prepare the above-mentioned tube electrode, a kind of electroforming mandrel for making aforementioned tube electrode of the present invention, see figure 2 As shown, the electroformed mandrel 6 includes an electroformed mandrel base 61, a wide groove 62 is arranged in the middle of the upper surface of the electroformed mandrel base, side ears 63 are arranged on both sides of the wide groove 62 on the electroformed mandrel base, and the width The working surfaces of the groove and the side ears on both sides are used for depositing electrodes. The size of the wide groove is determined by the geometric model of the tube electrode. The side ears 63 on both sides are symmetrically opened with threading micro-holes corresponding to the array micro-channels of the tube electrode. 12. The fine wires 7 pass through the wire threading microholes 12 on both sides, the diameter of the microfine wires is less than or equal to 50 μm...

Embodiment 3

[0061] Based on the previous electroforming mandrel to make array microchannel tube electrodes, a method for fabricating array microchannel tube electrodes of the present invention can include two processes as a whole, one is for making thick-walled arrays with large aspect ratio The manufacturing process of the electroformed mandrel of the microchannel tube electrode, one is to use the electroformed mandrel to make the microchannel tube electrode with a large aspect ratio and thick wall array, which specifically includes the following steps:

[0062] S1, obtaining the geometric model of the electroforming mandrel for making the microchannel tube electrode according to the geometric model of the tube electrode to be made;

[0063] According to the requirements of jet electrolytic processing, the specific parameters of the structure model of the tube electrode to be fabricated, such as diameter, length, distribution law of microchannels, etc., are obtained. For example, if an a...

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Abstract

The invention discloses a large-draw-ratio thick-wall array micro-runner tube electrode and a manufacturing method of the large-draw-ratio thick-wall array micro-runner tube electrode. An array micro-runner of the tube electrode has the characteristics that the wall is thick, the depth is large, and the inner diameter is smaller than or equal to 50 microns. Different from the characteristic that the wall of a traditional micro tube electrode is thin, the rigidity of the large-draw-ratio thick-wall array micro-runner tube electrode is greatly improved, the anti-interference capability is obviously improved, array micro high-speed jet flow can be loaded, the flow focusing property is improved, current density distribution is concentrated, the product discharging efficiency and the machiningefficiency are improved, and multiple microstructures can be formed in the single-time machining process. The invention further provides an electroforming core die used for manufacturing the tube electrode, the electroforming core die is used for manufacturing the tube electrode, so that the process is simple, and operability is high.

Description

technical field [0001] The invention belongs to the technical field of electrochemical processing, and in particular relates to a microfluidic tube electrode with a large aspect ratio thick-walled array, a method for manufacturing the tube electrode, and a microfluidic tube electrode for making a thick-walled array with a large aspect ratio. An electroforming core mold for a pipe electrode, and a manufacturing method for the electroforming core mold. Background technique [0002] With the development of science and technology, a large number of high-temperature alloys, titanium alloys and other metal materials are used in modern aviation, aerospace, shipbuilding and other industrial fields. For example, titanium alloys account for 41% of the total materials used in the fourth-generation fighter F-22. The industrial production of titanium began in 1948. The needs of the development of the aviation industry make the titanium industry develop at an average annual growth rate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H3/04C25D1/10
CPCB23H3/04C25D1/10
Inventor 曲宁松伍朝志
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS