Anodizing Plant Insulating Pipes and Adjustable Nozzles
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Solution Overview
Problem
Existing anodizing plants face issues with short circuits, limited ability to treat profiled sections of varying lengths, high power requirements for electrolyte solution pumping, and difficulty in handling complex cross-profiles, leading to inefficiencies and potential damage to equipment.
Innovation Solution
A plant and process utilizing electrically insulating pipes and adjustable nozzles to deliver electrolyte solution jets, preventing short circuits and allowing for effective current delivery along the entire length of profiled sections, reducing power needs, and accommodating complex geometries by supporting sections in a horizontal or vertical position with multiple points of contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional anodizing plants use conductive pipes to deliver electrolyte solution, then electrical connection is maintained, but short circuits occur between anode and cathode
Solution Approach 1:
The patent introduces electrically insulating pipes as an intermediary component between the electrolyte solution source and the treatment zone. These pipes deliver the electrolyte solution jets while preventing electrical conduction, thus acting as a mediator that allows fluid delivery without enabling harmful electrical contact between the anode and cathode.
Solution Approach 2:
The patent extracts the electrical conductivity function from the pipe material, separating the fluid delivery function from the electrical connection function. By using insulating materials for pipes, the design removes the potential for electrical conduction through the piping system while maintaining electrolyte solution delivery.
2Manufacturing precision
If profiled sections are supported at single points for treatment, then handling is simplified, but current distribution becomes non-uniform and treatment quality decreases
Solution Approach 1:
The patent divides the support system into multiple contact points along the length of the profiled section. Instead of a single support point, multiple supports are distributed along the section to ensure uniform current distribution and consistent oxide layer formation across the entire treated surface.
Solution Approach 2:
The patent arranges multiple support points at equal electrical potential to ensure uniform current distribution across the profiled section. By positioning supports at regular intervals and maintaining equipotential conditions, the system achieves uniform electrolyte flow and consistent anodizing quality along the entire length of the section.
3Productivity
If high pump power is used to deliver electrolyte solution under pressure, then jet delivery is effective, but energy consumption increases
Solution Approach 1:
The patent employs adjustable nozzle systems that can dynamically adapt their position and orientation to optimize electrolyte solution delivery. This dynamic adjustment allows the system to maintain effective treatment with optimized pump power requirements, reducing energy consumption while preserving productivity.
Solution Approach 2:
The patent uses locally directed electrolyte solution jets through adjustable nozzles positioned close to the treatment zone. This localized delivery method increases treatment efficiency without requiring high overall pump power, as the electrolyte is delivered precisely where needed with minimal energy waste.
4Adaptability or versatility
If fixed nozzle positions are used for electrolyte delivery, then system simplicity is maintained, but ability to treat complex cross-profiles is limited
Solution Approach 1:
The patent incorporates adjustable nozzles that can be positioned and oriented according to the specific geometry of the profiled section being treated. This dynamic adjustability allows the system to adapt to various cross-profiles and complex geometries, significantly enhancing versatility while maintaining reasonable system complexity.
Solution Approach 2:
The patent designs a universal nozzle system that can treat multiple types of profiled sections with different cross-sections and geometries. By making the nozzles adjustable in position and orientation, a single system configuration can handle diverse profile types, eliminating the need for multiple specialized setups.
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 prevents short circuits, enables efficient treatment of long and complex profiled sections, reduces power consumption, and maintains consistent electrolyte resistance, resulting in uniform oxide thickness and improved safety and production efficiency.
Implementation Method 1
aluminium is a silvery metal having the unique feature of turning its surface into a thin layer of natural aluminium oxide which is hard, compact, and practically inert to atmospheric agents
Implementation Method 2
appropriate electrochemical surface processing treatments of aluminium which allow obtaining an anodic oxide having a thickness much higher than the thickness of natural oxide
Implementation Method 3
the material (aluminium) is connected to the anode (positive pole) of a suitable electrochemical system comprising a direct current generator
Implementation Method 4
a solution of sulphuric acid (H2SO4). The products are then connected to the positive pole (anode), whereas the negative pole (cathode) consisting of a lead or aluminium electrode, is dipped into the electrolyte solution contained in the tank
Data Source
Figure 1
Figure 2
Figure 3~4B
AI summary
A plant and a process are disclosed for the continuous anodizing treatment of products made of aluminium or alloys thereof. The plant comprises means for feeding the products along a treatment path, at least one tank for collecting and/or storing a liquid electrolyte solution and a plurality of pipes made of an electrically insulating material and adapted for supplying jets of the liquid electrolyte solution towards the products along the treatment path, the solution being pressurized by a pump. Cathode electrodes are arranged in electric contact with the liquid electrolyte solution, and anode electrodes are arranged in electric contact with the products.