Anodizing Apparatus Deviated Injection for Uniform Film Thickness
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Solution Overview
Problem
Existing anodizing technologies face challenges in achieving uniform thickness of the anodized film on metallic materials with projecting portions, as they tend to experience temperature variations leading to uneven film thickness due to direct electrolytic solution impact during the anodization process.
Innovation Solution
An anodizing apparatus and method that includes an electrolysis tank, first and second electrode portions, a retaining device for rotating the material, and a first injection device that injects electrolytic solution toward a predetermined area deviated from the material, reducing direct impact and promoting uniform temperature distribution through turbulent flow, thereby ensuring even film thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If electrolytic solution is injected directly toward the material to be processed, then cooling effect is enhanced, but temperature variations occur leading to uneven anodized film thickness
Solution Approach 1:
The injection device directs electrolytic solution toward a predetermined area deviated from the material to be processed, creating localized cooling zones that prevent direct impact on specific surfaces. This localized approach ensures uniform temperature distribution across the material surface while maintaining effective cooling, thereby preventing uneven anodized film thickness.
2Loss of energy
If the material to be processed is rotated during anodization, then heat removal is improved, but direct electrolytic solution impact still causes temperature variations on projecting portions
Solution Approach 1:
The invention introduces an intermediary approach by injecting electrolytic solution toward a predetermined area deviated from the material. This intermediary injection path creates turbulent flow in the electrolyte without direct impact on the material surface, effectively removing heat while preventing temperature variations on projecting portions that would otherwise cause uneven film thickness.
3Temperature
If electrolytic solution flow rate is increased, then cooling effect is enhanced, but direct impact causes turbulent flow variations leading to uneven film thickness
Solution Approach 1:
The invention changes the spatial dimension of electrolyte injection by directing solution toward a predetermined area deviated from the material to be processed. This dimensional shift creates turbulent flow patterns that effectively cool the material surface while avoiding direct impact, thus maintaining uniform anodized film thickness even at high flow rates.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively suppresses temperature variations and ensures a uniform anodized film thickness across the entire surface of the metallic material, preventing thicker film formation on projecting portions compared to other areas.
Implementation Method 1
anodization on the material to be processed is started by an operation of the electrode apparatus which applies a predetermined voltage between the first electrode portion and the second electrode portion
Implementation Method 2
Rotating the material to be processed by the retaining device during the anodization helps to remove the heat generated in the material to be processed during the anodization
Implementation Method 3
variations in surface temperature of the material to be processed is suppressed from occurring during the anodization by a turbulent flow caused by the direct effect of the electrolytic solution on the material to be processed during the rotation
Data Source
AI summary
An anodizing apparatus configured to perform an anodization on a metallic material to be processed provided with a projecting portion on a surface thereof, includes: an electrolysis tank configured to store electrolytic solution for anodization; a first electrode portion formed of a metal and electrically connected to the material in an immersed state immersed in the electrolytic solution in the electrolysis tank; a second electrode portion formed of a metal and opposing the material in the immersed state; an electrode apparatus configured to apply a predetermined voltage between the first and second electrode portions; a retaining device configured to retain and rotate the material in the immersed state; and a first injection device configured to inject the electrolytic solution toward a predetermined area deviated from the material in a storage space in the electrolysis tank so that the material is deviated from a line in the direction of injection.