Electrolyte Flow Channel Segmentation for Uniform Coating
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Solution Overview
Problem
Existing devices for simultaneous coating or de-coating of multiple workpieces lack individual control over the electrolyte stream and electric field distribution, leading to inconsistent coating quality and increased rejection rates due to factors like poor contact and surface conditions.
Innovation Solution
The device employs a bath electrode in the flow channel to modify the electrolyte stream independently for each workpiece, combined with a flow distributor and additional electrodes to ensure uniform electrolyte distribution and controlled electric fields, allowing for separate regulation of each workpiece's coating process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a shared supply flow chamber is used for electrolyte supply to multiple workpieces, then device complexity is reduced, but manufacturing precision deteriorates due to inability to individually regulate electrolyte stream for each workpiece
Solution Approach 1:
The shared supply flow chamber is segmented into multiple independent flow channels, each leading to a specific workpiece. This segmentation allows individual electrolyte stream regulation for each workpiece while maintaining a unified device structure, thus resolving the contradiction between device complexity and manufacturing precision.
Solution Approach 2:
Each flow channel is equipped with its own bath electrode and flow regulator, enabling local adjustment of electrolyte stream characteristics for each workpiece. This local quality control ensures consistent coating precision across all workpieces without requiring complete system redesign.
2Manufacturing precision
If individual regulation of electrolyte stream for each workpiece is implemented, then manufacturing precision is improved, but device complexity increases due to multiple flow channels and control mechanisms
Solution Approach 1:
Multiple flow channels are merged into a single shared supply flow chamber that receives electrolyte from a common source. This merging approach allows individual regulation in each channel while avoiding the complexity of multiple independent supply systems, thus improving manufacturing precision without excessive device complexity.
3Manufacturing precision
If bath electrode is introduced in flow channel for individual electrolyte stream control, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The bath electrode serves multiple functions: it acts as an electrical component for electrolyte stream generation and as a flow control element for individual electrolyte stream regulation in each flow channel. This multi-functionality reduces the need for separate control components, thus improving manufacturing precision without proportionally increasing device complexity.
4Productivity
If multiple workpieces are coated simultaneously, then productivity is improved, but manufacturing precision deteriorates due to lack of individual workpiece control
Solution Approach 1:
The simultaneous coating system is segmented into multiple independent flow channels, each capable of individual electrolyte stream regulation. This segmentation enables differentiated control for each workpiece during simultaneous processing, thus maintaining high productivity while achieving consistent coating quality across all workpieces.
5Reliability
If poor contact of workpiece with component electrode occurs, then manufacturing precision deteriorates, but this issue cannot be compensated in shared flow chamber systems
Solution Approach 1:
Each flow channel is equipped with its own bath electrode and flow regulator, enabling local adjustment of electrolyte stream characteristics for each workpiece. This local quality control ensures consistent coating precision across all workpieces without requiring complete system redesign.
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
This approach enhances coating precision and quality by preventing electrolyte accumulation and ensuring uniform coating across all workpieces, reducing rejection rates and increasing throughput while allowing for adaptable layer thickness and electric field management.
Implementation Method 1
the electric field formed between the component electrode and the bath electrode
Implementation Method 2
a device for chromium plating of surfaces of workpieces to be chromium-plated
Implementation Method 3
simultaneous coating or de-coating of a plurality of workpieces
Data Source
AI summary
A device for simultaneous coating of a plurality of workpieces is described, the plurality of workpieces being situated in a shared flow shaft through which an electrolyte flows, and each workpiece being connected electrically conducting to at least one component electrode and being electrically insulated in relation to at least one bath electrode, and a plurality of flow channels and a flow distributor for distributing the electrolyte stream to the plurality of flow channels further being situated in the flow shaft, the at least one bath electrode being situated in one of the flow channels.


