A device for electrolytic machining of templates
A template and electrolyte technology, applied in the direction of electric processing equipment, electrochemical processing equipment, processing working medium supply, etc., can solve the problem that the influence of mass transfer rate is no longer significant, it is difficult to eliminate, and hinders the continuous progress of electrolytic processing, etc. Achieve the effects of improving electrolytic processing efficiency, enhancing mass transfer efficiency, and increasing electrolyte flow rate
Active Publication Date: 2020-09-25
NANJING TECH UNIV
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Problems solved by technology
However, existing studies have shown that when the flow rate of the electrolyte reaches 25m / s, the effect of further increasing the flow rate or pressure of the electrolyte on the mass transfer rate of the product will no longer be significant; in addition, the product after electrolysis of some metal materials has a high viscosity and is easily Adhesive to the metal surface, high-speed electrolyte flow is difficult to remove it in time, hindering the continuous progress of electrolytic machining, thus affecting the processing quality of template electrolytic machining
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[0019] Such as figure 1 with image 3 , This embodiment provides a device for electrochemical machining of a template, including a clamp 6 and a template 5. An electrolyte flow channel cavity is formed between the clamp 6 and the template 5, and a set of electrolyte flow channel cavity is connected to the negative electrode of the power supply The outer wall of each metal column 1 is provided with a ring of convex teeth. The convex teeth on the metal column 1 are all inclined in the same direction. The distance between the edges of the metal pillars 1 is 0.2mm. If the distance is too small, the device itself will be difficult to manufacture. If the distance is too large, it will affect the continuity of the electric field. The distance between the lower edge of the metal pillars 1 and the template is 0.3mm. The smaller the spacing of the template, the better it is to improve the machining efficiency and machining accuracy, but according to the results of the flow field analysis...
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The invention discloses a device for electrochemical machining of a template. The device comprises a fixture and the template, and an electrolyte flow chamber is formed between the fixture and the template; and the electrolyte flow chamber is internally provided with a group of metal columns connected with a negative electrode of a power supply, and the outer wall of each metal column is providedwith a circle of convex teeth. The convex teeth on the metal columns are inclined to the same direction. The electrolyte flow chamber is internally provided with a liquid inlet and a liquid outlet separately, and the rotation direction of the metal columns is consistent with the flow direction of electrolytes; and the inclination direction of the convex teeth is consistent with the rotation direction of the metal columns. According to the device, electrolytic products between the negative electrode and a positive electrode are directly stirred through mechanical motion, so that the mass transfer efficiency of the electrolytic products in an electrolyte flow field is improved.
Description
Technical field [0001] The invention relates to the technical field of template electrochemical processing, in particular to a device for template electrochemical processing. Background technique [0002] Today, with the rapid development of science and technology and manufacturing technology, due to the needs of various fields, many materials with special properties have been continuously researched and used. In the aviation field, machinery manufacturing, petroleum industry, ship technology, advanced automobile development, medical equipment and other industries, parts made of special materials are widely used. Among them, there are a considerable number of surface texture and group hole parts. Various difficult-to-machine materials are selected for this type of parts, and the machining accuracy requirements are relatively high. There are many problems in traditional machining. For example, there are residual stresses on the surface of the processed parts, the processed parts...
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IPC IPC(8): B23H3/00B23H11/00B23H3/10
CPCB23H3/00B23H3/10B23H11/00
Inventor 王国乾张彦
Owner NANJING TECH UNIV