Complex micro internal flow channel fluid polishing method based on weak oxidation and micro friction composite effect

Through the cyclic process of forming and peeling off the amorphous oxide layer on the surface of the complex fine inner flow channel, the combined action force of fluid movement and micro-nano bubbles are used to solve the problem that traditional technology is difficult to deal with the surface defects of complex fine inner flow channel, and the uniform polishing effect of the inner flow channel of various structures and diameters is achieved.

CN119871232APending Publication Date: 2025-04-25SHANGI INST FOR ADVANCED MATERIALSNANJING CO LTD
0 Cites 1 Cited by

Patent Information

Application Number
CN202411871936.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-04-25

AI Technical Summary

Technical Problem

The prior art is difficult to effectively deal with the surface defects of complex and fine inner flow channels, especially in small diameters, large diameters or variable shapes and structures. Traditional contact friction removal technology and abrasive flow polishing technology cannot meet the processing needs of these complex structures.

Method used

A fluid polishing method based on the composite effect of weak oxidation and micro friction is adopted to form an amorphous oxide layer on the surface of the inner channel, and peel the layer with the combined action of fluid movement and micro-nano bubbles to achieve uniform polishing of complex and fine inner channel.

Benefits of technology

This method can effectively remove defects such as processing patterns, cracks and other defects on the inner flow path surface, significantly improve the transport efficiency of the flow path, ensure smooth and residue-free surface, and is suitable for complex and fine inner flow path processing of various structures and diameters.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention provides a complex micro-fine inner flow channel fluid polishing method based on a weak oxidation and micro-friction composite effect, which comprises the following steps: conveying a polishing solution containing micro-nano bubbles into an inner flow channel of a to-be-polished workpiece according to preset parameters, and swinging and / or rotating the to-be-polished workpiece in a reciprocating manner according to the preset parameters, polishing of an inner runner of the workpiece is achieved; wherein a uniform amorphous oxide layer is formed on the surface of the inner flow channel through the comprehensive action of an oxidizing agent, a corrosion inhibitor and a surfactant which are arranged in the polishing solution, and then the amorphous oxide layer is stripped through the comprehensive action force generated by fluid movement and micro-nano bubble explosion; and polishing of the inner runner of the workpiece is realized by circularly performing the processes of forming the amorphous oxide layer and stripping the amorphous oxide layer. According to the method disclosed by the invention, weak corrosion and micro-friction stripping are circularly carried out by combining the combined action of the chemical corrosion force of the polishing solution and the mechanical friction force of the fluid and the micro-nano bubbles, so that uniform and effective processing of the inner runner is realized.
Need to check novelty before this filing date? Find Prior Art