Permanent Cathode Edge Strip Fixation with Sealing Elastomeric Pins
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Solution Overview
Problem
Existing methods for fixing insulating edge strips on electrode plates in electro-refining or electro-winning processes face issues with detachment and electrolyte ingress, leading to metal deposition irregularities and contamination, which are not adequately addressed by current solutions involving pins or transverse pins.
Innovation Solution
A method using elastomer or rubber extended pins with a larger diameter than the perforations, inserted and cut to fit perfectly, ensuring a tight seal and preventing electrolyte ingress, without adhesives, while maintaining the pins' integrity under mechanical stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pins or transverse pins are used to fix edge strips on electrode plates, then the edge strips are secured to prevent detachment, but the electrolyte solution can still enter through the perforations causing metal deposition irregularities
Solution Approach 1:
The patent uses elastomeric pins that expand within the perforations to create a sealing effect. The elastomeric material deforms to fill the perforation space and prevents electrolyte ingress while maintaining edge strip fixation, directly addressing both the reliability and harmful factors aspects of the contradiction.
Solution Approach 2:
The patent changes the physical state of the pin material by using an elastomeric substance that can deform and expand. The pin is inserted in a compressed state and then expands to fill the perforation, changing its volume and shape parameters to create a seal that prevents electrolyte entry while maintaining secure fixation.
2Stability of the object's composition
If traditional pins are used to secure edge strips, then detachment is prevented, but the pins do not provide a hermetic seal against electrolyte solution
Solution Approach 1:
The elastomeric pin material provides flexibility to deform and conform to the perforation geometry, creating a hermetic seal. The material's elastic properties allow it to expand and fill gaps, ensuring both stable positioning and precise sealing without requiring additional sealing components.
Solution Approach 2:
The patent employs an elastomeric material that combines the mechanical fastening function with the sealing function in a single component. This composite approach integrates structure and sealing properties, eliminating the need for separate pins and seals while achieving both positional stability and hermetic tightness.
3Strength
If multiple pins are inserted through aligned perforations to fix edge strips, then the fixation is strengthened, but the complexity of installation and alignment increases
Solution Approach 1:
The elastomeric pin's flexibility allows for easier insertion and alignment compared to rigid pins. The material can deform during insertion to accommodate minor misalignments and then expands to lock in place, reducing installation complexity while maintaining strong fixation through the expansion mechanism.
4Ease of manufacture
If rigid pins are used to secure edge strips, then the installation is simple, but the pins may protrude from perforation ends causing contamination risks
Solution Approach 1:
The elastomeric pin material allows the pin to be inserted without protruding, as it can deform to fit within the perforation boundaries. Once inserted, it expands to create a seal and maintains its position without extending beyond the perforation ends, eliminating contamination risks while keeping installation simple.
Solution Approach 2:
The pin undergoes a parameter change from a compressed insertion state to an expanded sealed state. During insertion, the pin is compressed to fit through the perforation without protruding, then expands to fill the space and create a seal, preventing both protrusion-related contamination and ensuring secure fixation.
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 effectively secures edge strips to electrode plates, preventing detachment and electrolyte ingress, reducing metal deposition irregularities and contamination, ensuring a hermetic seal throughout the process.
Implementation Method 1
an elastomer or rubber extended pin inserted in a first perforation
Data Source
AI summary
A method for installing pins or sealing components for fixing insulating edge strips to the edges of plates of electrodes, preferably permanent cathodes, for electro-refining/electro-winning processes, in aligned perforations of the edge strips and the edge of plate of the electrode, thus avoiding the detachment of the edge strips while ensuring a tight seal, thus preventing the aqueous electrolyte solution from entering into said perforations, wherein each pin or sealing component is made of elastomer/rubber, having an elongated cylindrical shape, wherein the diameter of the pins or sealing components is bigger than the diameter of said perforations, thus forming a tight seal between them; and an electrode comprising a conductive bar and a plate that is suspended by the conductive bar at one of its ends that has pins or sealing components for fixing the edge strips.