A micro-arc oxidation device and micro-arc oxidation treatment method for the inner wall of a titanium alloy pipe

Abstract

The invention discloses a micro-arc oxidation device for the inner wall of a titanium alloy pipe, which comprises a load-bearing frame, an oxidation operation tank, a load-bearing conveying frame, a sealing plug, an electrolyte liquid storage tank, a temperature adjustment mechanism, an oxidation electrode, an electrode positioning frame, an ultrasonic wave Oscillating mechanism and control circuit, the carrying frame is a frame structure, the oxidation operation tank is embedded in the carrying frame, the carrying conveyor frame is embedded in the oxidation operation tank, the sealing plugs are respectively connected with the two ends of the titanium alloy pipe, and the sealing plugs are equipped with Oxidation electrodes, draft tubes, control circuits and electrolyte storage tanks are all installed on the carrying frame. The arc oxidation treatment method includes five steps: surface cleaning, clamping, micro-arc oxidation treatment, primary surface cleaning and secondary surface cleaning. On the one hand, the invention can effectively meet the need of high-precision micro-arc oxidation treatment on the inner surface of the titanium alloy pipe, and on the other hand, greatly reduces the cost of the micro-arc oxidation operation on the inner wall of the titanium alloy pipe.

Description

technical field [0001] The invention relates to a micro-arc oxidation method for the inner surface of a titanium alloy, which belongs to the technical field of metal surface processing. Background technique [0002] When processing titanium alloy pipe workpieces, in order to meet the needs of adjusting the surface properties of titanium alloy pipe workpieces, especially the physical and chemical properties of the inner surface of the pipe, to meet the needs of different use occasions and requirements, it is often necessary to pass through the inner surface of the pipe Micro-arc oxidation is used for surface treatment, but in the actual processing of workpieces, it is often necessary to maintain and oxidize the local parts of the surface of the workpiece. Currently, when performing micro-arc oxidation on pipes, the equipment used is often traditional oxidation treatment Although the equipment can meet the needs of use to a certain extent, when performing micro-arc oxidation t...

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Problems solved by technology

[0002] When processing titanium alloy pipe workpieces, in order to meet the needs of adjusting the surface properties of titanium alloy pipe workpieces, especially the physical and chemical properties of the inner surface of the pipe, to meet the needs of different use occasions and requirements, it is often necessary to pass through the inner surface of the pipe Micro-arc oxidation is used for surface treatment, but in the actual processing of workpieces, it is often necessary to maintain and oxidize the local parts of the surface of the workpiece. Currently, when performing micro-arc oxidation on pipes, the equipment used is often traditional oxidation treatment Although the equipment can meet the needs of use to a certain extent, when performing micro-arc oxidation treatment, the equipment often lacks corresponding pertinence, which on the one hand leads to relatively high maintenance and oxidation costs for titanium alloy pipes, resulting in relatively high energy and material losses. Serious, on the other hand, it also leads to defects such as poor uniformity of surface oxide layer structure and poor distribution layout accuracy when performing maintenance and oxidation operations on titanium alloy pipes, especially when performing maintenance and oxidation operations on the inner surface of titanium alloy pipes alone. At the same time, it is easy to cause the outer surface of the pipe to be oxidized, which will seriously affect the quality of the titanium alloy pipe product. Therefore, in view of this phenomenon, it is urgent to develop a micro-arc oxidation operation equipment and related processing methods for the inner wall of the titanium alloy pipe to meet practical needs

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