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Large aspect ratio thick-wall array microfluidic tube electrode, electroforming mandrel and manufacturing method

A technology of large aspect ratio and micro flow channel, which is applied in the production of electroforming mandrel, making microfluidic pipe electrodes with large aspect ratio thick wall array, electroforming mandrel, large aspect ratio thick wall array microfluidic In the field of pipe and tube electrodes, it can solve the problems of difficult loading of high-speed jets, thin walls of micro-tube electrodes, and poor rigidity, and achieve the effects of improving product discharge efficiency and processing efficiency, improving stream focus, and enhancing anti-interference ability

Active Publication Date: 2022-05-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 aspect ratio thick-wall array microfluidic tube electrode, electroforming mandrel and manufacturing method
  • Large aspect ratio thick-wall array microfluidic tube electrode, electroforming mandrel and manufacturing method
  • Large aspect ratio thick-wall array microfluidic tube electrode, electroforming mandrel and manufacturing method

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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 tube electrode of a thick-wall array microchannel with a large length-to-diameter ratio and a manufacturing method thereof. The array microchannel of the tube electrode has the characteristics of wall thickness, large depth, and an inner diameter less than or equal to 50 μm. Different from the thin wall of the traditional microtube electrode, the rigidity of the tube electrode of the present invention is greatly improved, and the anti-interference ability is significantly enhanced. It can load an array of micro high-speed jets, improve the focus of the stream, concentrate the current density distribution, and improve the product discharge efficiency. And processing efficiency, and a single processing process can form multiple microstructures. The invention also discloses an electroforming mandrel for making the tube electrode. The process of making the tube electrode by using the electroforming mandrel is simple and has strong operability.

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