Micro-arc oxidation device for improving film thickness evenness and energy utilizing rate based on separate type compensation cathode

A technology of uniform thickness and micro-arc oxidation, applied in the field of material surface treatment based on solution discharge and micro-arc oxidation of workpiece surface, can solve the problems of uneven film thickness and low energy utilization rate, reduce reactive heat generation, The effect of reducing additional cooling power and reducing distance

Inactive Publication Date: 2015-03-11
JIAMUSI UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems of uneven thickness of workpiece oxidation film and low energy utilization rate caused by equivalent impedance of electrolyte in the existing micro-arc oxidation technology, the present invention proposes a method based on separate compensation cathode to improve film thickness uniformity and Micro-arc Oxidation Device with Energy Utilization Efficiency

Method used

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  • Micro-arc oxidation device for improving film thickness evenness and energy utilizing rate based on separate type compensation cathode
  • Micro-arc oxidation device for improving film thickness evenness and energy utilizing rate based on separate type compensation cathode
  • Micro-arc oxidation device for improving film thickness evenness and energy utilizing rate based on separate type compensation cathode

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specific Embodiment approach 2

[0021] Embodiment 2. The difference between this embodiment and the micro-arc oxidation device based on the separate compensation cathode to improve the uniformity of film thickness and energy utilization described in Embodiment 1 is that the insulating frame 7 is processed with a plurality of bolts. Mounting holes.

[0022] In this embodiment, a plurality of bolt installation holes are processed on the insulating frame 7, so that the position of the anode rod 3 can be adjusted according to the actual oxidation needs of the workpiece.

specific Embodiment approach 3

[0023] Embodiment 3. The difference between this embodiment and the micro-arc oxidation device based on the separated compensation cathode to improve the uniformity of film thickness and energy utilization in Embodiment 1 is that the micro-arc groove 1, the upper cathode Frame 2, anode rod 3, workpiece hanging rod 4, compensation cathode hanging rod 5, compensation cathode plate 6 and anode clamp 8 are all realized by conductive materials.

specific Embodiment approach 4

[0024] Embodiment 4. The difference between this embodiment and the micro-arc oxidation device based on the separate compensation cathode to improve film thickness uniformity and energy utilization rate in Embodiment 3 is that the workpiece hanging rod 4 is connected to the upper cathode frame. 2. Insulating rubber is pasted on the parts where the through-holes of the bottom plate are in contact.

[0025] Because in the actual installation and use process, due to the factors of man-made or electrolyte flow, it is easy to contact between the workpiece hanging rod 4 and the through hole of the bottom plate of the upper cathode frame 2, so it is necessary to connect the workpiece hanging rod 4 to the upper cathode frame. 2. An insulator is coated on the part where the through hole of the bottom plate contacts, and is used for electrical isolation between the cathode and the anode.

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Abstract

The invention provides a micro-arc oxidation device for improving film thickness evenness and energy utilizing rate based on a separate type compensation cathode, relates to the field of workpiece surface micro-arc oxidation, and solves the problem of the existing micro-arc oxidation technology that uneven workpiece oxide film thickness and electrolyte equivalent impedance result in low energy utilizing rate. An upper cathode frame is of a U-shaped structure and is erected on a micro-arc tank, array through holes are formed in the bottom plate of the upper cathode frame, an insulating frame is fixed to the upper surface of the upper cathode frame through bolts, an anode rod is a cuboid long rod, the two ends of the anode rod are fixed on the insulating frame through bolts, one end of a workpiece suspending rod is positioned in the micro-arc tank and provided with a hook, the other end of the workpiece suspending rod penetrates through the through hole in the bottom plate of the upper cathode frame and is fixed on the anode rod through an anode clamp, a hook is arranged at one end of a compensation cathode suspending rod, the compensation cathode suspending rod is erected on the bottom plate of the upper cathode frame through the hook, and a compensation cathode plate is fixedly connected with the other end of the compensation cathode suspending rod. The micro-arc oxidation device is suitable for micro-arc oxidation.

Description

technical field [0001] The invention relates to the field of micro-arc oxidation on workpiece surfaces, in particular to the technical field of material surface treatment based on solution discharge. Background technique [0002] Micro-arc oxidation is a very effective technology for forming surface functional coatings on aluminum, titanium, magnesium, zirconium and other metals based on spark discharge in solution. The oxide layer can effectively improve the wear resistance, corrosion resistance, high temperature oxidation resistance, electrical insulation and so on of the surface of the material. The basic principle of micro-arc oxidation is: prepare the electrolyte according to a certain proportion and composition, pour it into the micro-arc groove, immerse the workpiece to be treated in the electrolyte, and apply positive electricity to the workpiece. Under the conditions of proper electrolyte and electrical parameters, a spark discharge will be formed on the surface of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/02C25D17/00
CPCC25D11/005C25D11/02
Inventor 李慕勤田钦文刘忠洲马天钰毕研军渠伟峰
Owner JIAMUSI UNIVERSITY
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