Dual Metal-Ceramic Cookware Base for Induction Adhesion Stability
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Solution Overview
Problem
Conventional aluminum cooking utensils damaged due to extreme temperature changes when used on both gas burners and induction cookers, as the electromagnetic plates detach or peel off from the aluminum pots after repeated use.
Innovation Solution
A cooking utensil with two metal-ceramic composite layers, one having electromagnetic properties and the other heat conductive properties, formed on the external bottom surface using a low temperature spray method, ensuring superior adhesion and preventing detachment during temperature changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an electromagnetic plate is strongly adhered to the bottom of an aluminum pot by forging/soldering, then the aluminum pot can be used on induction cookers, but the electromagnetic plate detaches or peels off after repeated extreme temperature changes
Solution Approach 1:
The patent uses a composite material structure consisting of an aluminum cooking body with a metal-ceramic layer formed on its bottom surface. This composite structure combines the heat conductivity of aluminum with the electromagnetic properties and thermal stability of the metal-ceramic layer, enabling induction cooker compatibility while resisting detachment under temperature changes.
Solution Approach 2:
The patent changes the physical and chemical parameters of the bottom surface by forming a metal-ceramic layer through spray deposition. This layer has different thermal expansion coefficients and bonding characteristics compared to the base aluminum material, allowing it to withstand repeated temperature cycles without detaching, unlike conventional electromagnetic plates bonded by forging or soldering.
2Use of energy by moving object
If conventional aluminum pots are used on gas burners, then they provide rapid heat conduction and energy efficiency, but they cannot be used on induction cookers
Solution Approach 1:
The patent creates a composite structure where the aluminum cooking body maintains its excellent thermal conductivity for energy efficiency, while the added metal-ceramic layer on the bottom surface provides the electromagnetic properties necessary for induction cooker compatibility. This allows the pot to function on both gas burners and induction cookers without sacrificing energy efficiency.
3Reliability
If a metal-ceramic composite layer is formed by conventional high temperature methods, then good adhesion is achieved, but the manufacturing process is complex and not suitable for mass production
Solution Approach 1:
The patent replaces conventional high-temperature forging or soldering processes with a spray deposition method to form the metal-ceramic layer. This substitution of manufacturing methodology simplifies the production process, reduces equipment requirements, and enables mass production while maintaining good adhesion between the metal-ceramic layer and the aluminum cooking body.
Solution Approach 2:
The patent changes the manufacturing parameters by using spray deposition at controlled temperatures to form the metal-ceramic layer. This approach achieves adequate adhesion strength through controlled deposition parameters rather than requiring high-temperature processing, thereby simplifying the manufacturing process and making it suitable for mass production.
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 cooking utensil remains functional across both gas burners and induction cookers, boiling water faster and resisting temperature extremes without damage, with a manufacturing method suitable for mass production and avoiding issues of traditional mechanical methods.
Implementation Method 1
two or more metal-ceramic composite layers are rapidly formed on an external bottom surface of a cooking body by using a low temperature spray method
Data Source
AI summary
A cooking utensil and a manufacturing method thereof are provided. The cooking utensil includes a cooking body, a first metal-ceramic composite layer having an electromagnetic property and a second metal-ceramic composite layer having a heat conductive property. The cooking body has an external bottom surface. The first metal-ceramic composite layer is disposed on the external bottom surface of the cooking body. The second metal-ceramic composite layer is disposed on the first metal-ceramic composite layer. The cooking utensil is suitable for both an induction cooker and a gas burner.