Aluminum Foil Rolling Process Using Coupled Sheets
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing processes for producing aluminum foils with reduced thickness are limited by low productivity and restricted thickness ranges due to the need for multiple rolling steps and complex systems requiring frequent lubricant insertion between foils.
Innovation Solution
A rolling process where two aluminum foils are overlapped and rolled multiple times with lubricant applied to outer faces, allowing for continuous rolling without full separation, reducing the need for frequent lubricant insertion and enabling multiple rolling steps without separating the foils, thereby increasing productivity and achieving thinner foil thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple singly rolling steps are used to reduce foil thickness, then the desired thin thickness is achieved, but productivity decreases due to the need for high number of rolling steps
Solution Approach 1:
The patent combines two separate foil sheets into a coupled configuration, allowing them to be rolled together in a single doubly rolling step. This merging approach enables achieving the desired thin thickness through fewer rolling operations compared to processing each foil separately, thereby improving productivity while maintaining manufacturing precision.
2Productivity
If doubly rolling steps are used to improve productivity, then fewer rolling steps are needed, but the system complexity increases due to the need for lubricant insertion and foil coupling mechanisms
Solution Approach 1:
The patent applies lubricant to the outer faces of the coupled foils before the doubly rolling step. This preliminary action ensures that the foils can be easily separated after rolling without requiring complex separation mechanisms during the rolling process itself, thereby reducing system complexity while maintaining high productivity.
3Productivity
If multiple doubly rolling steps are used to achieve reduced thickness, then productivity improves, but the process complexity increases due to repeated lubricant insertion and foil separation
Solution Approach 1:
The patent maintains the coupled configuration of the two foils throughout multiple rolling steps, allowing continuous rolling action without repeated separation and re-coupling. The lubricant applied to outer faces remains effective throughout the process, enabling multiple rolling passes to be performed on the same coupled foils, thereby improving productivity while maintaining process simplicity.
4Productivity
If foils are kept coupled through multiple rolling steps, then productivity increases, but the ability to separate and individually wind foils becomes limited
Solution Approach 1:
The patent uses lubricant as an intermediary substance applied to the outer faces of the coupled foils. This lubricant layer prevents the foils from binding together during rolling, allowing them to remain coupled for high-productivity rolling operations while still enabling easy separation and individual winding at the end of the process. The lubricant mediates between the need for continuous coupling during rolling and the need for separation for final winding.
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 process enhances productivity and allows for the production of aluminum foils with significantly reduced thickness by enabling multiple rolling steps without the complexity of frequent lubricant insertion, resulting in improved efficiency and thinner foil production.
Implementation Method 1
a lubricant is inserted preventing the contacting faces of the aluminium foils from remaining bound one to another
Data Source
AI summary
In an aluminum foil rolling process, first and second aluminum foils are provided, each having first and second faces, one face between the first and second faces is lubricated to obtain a first lubricated face. The foils are coupled to obtain a coupled foil having two outer faces and rolling the coupled foil, reducing the thickness of the coupled foil. One face between the two outer faces of the coupled foil is lubricated to obtain a coupled foil having a second lubricated face. The coupled foil is then wound to obtain a wound coupled foil. The coupled foil is partially separated by unwinding one of the first and second foils, to obtain a wound coupled foil. The wound coupled foil is unwound and rolled to obtain a coupled foil with reduced thickness and is then separated to obtain first and second foils with respective first and second reduced thicknesses.