Dynamic Part-Carrier for Uniform Electroplating of Complex Geometries
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Solution Overview
Problem
Geometrically complex parts experience non-uniform electrolytic or anodic oxidation treatments due to inadequate exposure to current lines during electroplating, resulting in heterogeneous coating thicknesses that fail to meet specifications.
Innovation Solution
A method and device for electrolytic or anodic oxidation treatment involving a part-carrier that positions geometrically complex parts in a neutral initial position and subjects them to sequential rotations up to 90°, optimizing exposure to current lines, ensuring uniform coating on all surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If parts are positioned in a fixed initial position opposite the anodes, then the treatment process is simple and efficient, but the coating thickness becomes non-uniform on geometrically complex parts
Solution Approach 1:
The patent applies the dynamics principle by transforming the static positioning system into a dynamic one. The part-carrier device enables sequential rotation of geometrically complex parts during electrolytic treatment, allowing different surfaces to be exposed to current lines at different stages. This dynamic positioning ensures uniform coating thickness across all surfaces while maintaining treatment efficiency, directly resolving the contradiction between simple fixed positioning and uniform coating on complex geometries.
2Manufacturing precision
If parts are rotated sequentially during treatment, then coating uniformity is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the treatment process into discrete rotational stages. The part-carrier device segments the rotation into sequential positions (e.g., 0°, 45°, 90°, 135°), where each position exposes specific surfaces to current lines. This segmentation allows complex parts to receive uniform coating without requiring continuous complex motion, simplifying the overall device while achieving coating uniformity.
Solution Approach 2:
The part-carrier device embodies universality by serving multiple functions: it holds parts, provides sequential rotation, and acts as the cathode in the electrolytic cell. This multi-functionality reduces the need for additional dedicated components, thereby limiting the increase in device complexity while still achieving the goal of uniform coating through rotation.
3Manufacturing precision
If parts are rotated to expose all surfaces, then coating uniformity is achieved, but the treatment time increases
Solution Approach 1:
The patent applies periodic action by implementing cyclic rotation of parts through predetermined angular positions during the electrolytic treatment. The part-carrier device rotates parts sequentially to expose different surfaces to current lines at periodic intervals, ensuring all surfaces receive adequate coating exposure within a controlled time frame. This periodic motion achieves coating uniformity without requiring excessively long treatment durations.
Solution Approach 2:
The patent applies preliminary action by pre-programming the rotation sequence and angular positions before treatment begins. The optimal rotation angles and timing are determined in advance based on part geometry, allowing the treatment process to proceed efficiently without trial-and-error adjustments during operation. This preliminary planning minimizes treatment time while ensuring all surfaces are adequately exposed for uniform coating.
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 method and device ensure uniform exposure of complex part surfaces to current lines, resulting in a more uniform electroplated coating, addressing the issue of non-homogeneous treatments and meeting specifications.
Implementation Method 1
the electrolytic or anodic oxidation surface treatment, in particular electroplating, of surfaces of geometrically complex parts
Implementation Method 2
the lines of current in the bath conventionally going from the anodes to the cathodes
Data Source
AI summary
A part-carrier for electrolytically treating geometrically complex parts includes a reinforcement vertically supporting supports that are movable in rotation and designed to carry the parts to be treated, and a control member which, when activated, pivots the movable supports in sequence to either side of a neutral initial position. Application to electroplating.


