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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 saving processing time, reducing processing cost and high efficiency

Inactive Publication Date: 2007-08-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
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  • Claims
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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

Method used

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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 operation process of implementing the present invention-"electroforming method for micro-protrusion structure on the outer surface of cylindrical revolving body parts" will be described below 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. Referring to Figure 1, the specific processing implementation process goes through the following steps in sequence:

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

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Abstract

The invention discloses a trace structural electric-cast manufacturing method on the external surface of column-shaped rotary bulk element in the electric cast manufacturing domain, which is characterized by the following: making flexible electric-cast screen film with micro-hole structure; attaching column-shaped rotary bulk element and flexible electric-cast screen film through mechanic squeezing pattern; casting element as cathode; forming trace projecting structure on the external surface of column-shaped rotary bulk element; making electric-cast screen film through insulating material; adding a layer of electrochemical insoluble metal material (platinum or titanium) to make the insulating material.

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 Applications(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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