Electromoulding processing method for micro-structure on external surface of cylindrical revolving body element

A technology of microstructure and processing method, applied in electroforming, electrolysis process, etc., to achieve the effect of reducing processing cost, low processing environment requirements and high efficiency

Inactive Publication Date: 2009-12-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a low-cost, high-precision and easy-to-operate processing method for the shortcomings of the existing processing methods for the micro-protrusion structure on the outer surface of cylindrical rotary parts

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  • Electromoulding processing method for micro-structure on external surface of cylindrical revolving body element
  • Electromoulding processing method for micro-structure on external surface of cylindrical revolving body element

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Embodiment Construction

[0020] The following describes the operation process of implementing the present invention-"electroforming method for micro-protrusion structure on the outer surface of cylindrical revolving body parts" in conjunction with specific examples.

[0021] The metal radiator of cylindrical electronic components used in the electronics industry has the best shape as a thin-walled cylinder with a large number of small protrusions with high aspect ratio on the surface. These tiny protrusions can increase the heat dissipation area, and when used, the thin-walled cylinder Covered on the outer surface of cylindrical electronic components, it can quickly reduce the temperature.

[0022] In the process of electroforming, it is planned to use 3 times of electroforming, that is, 1 / 3 of the thin-walled cylinder is processed by electroforming each time, combined with figure 1 , the specific processing implementation process goes through the following steps in turn:

[0023] (1), using drilling...

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Abstract

The invention relates to an electroforming processing method for the microstructure of the outer surface of a cylindrical revolving body part, which belongs to the field of electroforming processing. The feature of this method is to make a flexible electroformed shielding film with a micro-pore structure; use mechanical extrusion to closely fit the cylindrical rotating body part and the flexible shielding film, use the part as the cathode for electroforming, and Micro-protruding structures are formed on the surface of the body; the electroformed shielding film can be made entirely of insulating materials, or it can be made of insulating materials plus a layer of metal materials (such as platinum, titanium, etc.) with electrochemical insoluble properties. By adopting the electroforming processing method of the present invention, the micro-protruding structure can be formed on the outer surface of the cylindrical revolving body part, and has the characteristics of high manufacturing precision, high speed and low cost.

Description

technical field [0001] The electroforming forming method of the micro-protrusion structure on the outer surface of a column-shaped revolving body part in the present invention belongs to the field of electroforming processing. Background technique [0002] With the rapid development of science and technology, many new types of small structural size parts have emerged, such as rolling dies for micro-sized structure imprinting in the field of micro-manufacturing, and cylindrical molds for increasing the heat dissipation performance of electronic components in the electronics industry. Parts, the outer surfaces of these parts are designed with tiny raised structures. For example, the heat dissipation devices with tiny raised structures made by scholars such as Dr. Kevin Kelly. The scales of these tiny raised structures range from a few micrometers to hundreds of micrometers, [0003] In recent years, many scholars have tried to use photolithography technology and other auxili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D1/00C25D1/10
Inventor 朱荻曲宁松王晓雷李寒松曾永彬
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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