Preparation and Application of Flexible Template with Conductive Layer
A flexible template and conductive layer technology, applied in electric machining equipment, electrochemical machining equipment, manufacturing tools, etc., can solve the problems of long production preparation cycle and complicated fixture design, and achieve a wide range of applications, simple preparation process, and simple preparation. Effect
Active Publication Date: 2018-02-16
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
It can effectively improve the problems of complex fixture design and long production preparation period in template electrolytic machining
Method used
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Embodiment Construction
[0013] In conjunction with the accompanying drawings, specifically sign the implementation steps of the present invention:
[0014] (a). Select the metal copper plate 1 with a raised pattern as the base, mix the A component and the B component of the two-component polyurethane glue 2, and evenly coat it on the metal copper plate 1 with a raised pattern;
[0015] (b). Flatten with the cover plate 3, put the glued metal copper plate into a vacuum environment to solidify, and obtain the polyurethane insulating layer 4;
[0016] (c). The base is removed, and the upper surface of the above-mentioned polyurethane insulating layer 4 is coated with modified graphite emulsion to make its surface conductive, forming a modified graphite layer 5;
[0017] (d). Electroplate copper on the upper surface of the modified graphite layer 5 to obtain a copper-plated conductive layer (6), that is, form a flexible mask 7 containing a polyurethane insulating layer 4 and a copper-plated conductive la...
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Abstract
The invention relates to preparation and application of a flexible template with a conductive layer and belongs to the technical field of electrolytic machining. The novel template includes the following preparation and application steps that firstly, a metal copper plate (1) with convex patterns is evenly coated with a double-component polyurethane adhesive (2), a polyurethane insulating layer (4) is obtained after curing, conductive treatment is performed on the surface of the polyurethane insulating layer (4), electroplating is performed so that the copper plated conductive layer (6) can be obtained, and that is to say, a flexible mask plate (7) is formed; and secondly, a workpiece (10) is connected with the positive electrode of a power source (9), the copper plated conductive layer (6) is connected with the negative electrode of the power source (9), and electrolytic machining is performed. In the preparation and application of the flexible template with the conductive layer, the ratio of a component A of the polyurethane adhesive to a component B of the polyurethane adhesive can be selected according to actual requirements, and polyurethane insulating layers of different flexibilities are obtained; the thickness of the copper plated conductive layer of the pattern template is controlled by adjusting electroplating parameters; and the pattern template is easy to prepare, can adapt to the requirement of electrolytic machining of various templates, and improves template electrolytic machining adaptability.
Description
technical field [0001] The invention relates to the preparation and application of a flexible template with a conductive layer, and belongs to the technical field of electrolytic processing. Background technique [0002] With the development of material science and manufacturing technology, the scope of application of difficult-to-machine materials is expanding day by day. Among them, the number of thin plate group hole parts is increasing day by day, and high-tech products are also developing in the direction of multi-function and precision. This puts forward higher requirements for the processing of thin plate group hole parts of difficult-to-machine materials. Group hole parts are widely used in aerospace, instrumentation, mining, textile, optics and many other fields. Such as aero-engine air damping sleeves, air-conditioning ducts on aircraft, heat shields, and chemical fiber spinnerets, optical fiber connectors, and sound insulation panels. [0003] Electrolytic machi...
Claims
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IPC IPC(8): B23H3/00B23H9/14B23H11/00
CPCB23H3/00B23H9/14B23H11/00
Inventor 李寒松王国乾杨敏曲宁松朱荻
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS