A cooking utensil
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing non-stick coatings on cooking utensils have limitations in reducing food adhesion and durability, leading to inefficiencies in cooking performance and nutrient retention.
Innovation Solution
A method involving shot peening to create depressions on the utensil surface, followed by cleaning, sandblasting, and applying a non-stick coating, which enhances physical anti-adhesion and surface passivation, increasing the utensil's rigidity and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a non-stick coating is applied to the utensil surface, then food adhesion is reduced, but the coating durability and service life are limited
Solution Approach 1:
The shot peening process is performed before applying the non-stick coating to create a dimpled surface structure. This preliminary action of surface deformation improves the mechanical interlocking between the coating and substrate, enhancing both the non-stick performance and durability of the coating system.
Solution Approach 2:
The invention creates a composite structure consisting of the substrate material (e.g., aluminum, stainless steel) combined with a non-stick coating layer. The shot peening process modifies the substrate surface to provide optimal mechanical properties and surface characteristics for coating adhesion, resulting in a composite system with enhanced performance.
2Ease of operation
If the utensil surface is made smoother to reduce friction, then food adhesion decreases, but nutrient loss increases
Solution Approach 1:
The shot peening process creates a non-uniform surface with localized dimples and peaks. This local variation in surface topology provides areas of reduced friction for easy food release while maintaining areas that retain nutrients, achieving both ease of operation and nutrient retention simultaneously.
3Reliability
If a wrinkle non-stick coating is applied to improve non-stick performance, then food adhesion is reduced, but manufacturing complexity and process drawbacks increase
Solution Approach 1:
Instead of using complex chemical or multi-step mechanical processes to create surface structures, the invention employs shot peening - a well-established mechanical surface treatment process. This substitution simplifies the manufacturing process while achieving the desired surface morphology for improved non-stick performance.
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 treated surface achieves a threefold improvement in cooking performance and extends the utensil's service life, while reducing nutrient loss and friction, with enhanced non-stick properties.
Implementation Method 1
shot peening the substrate substantially evenly across the surface area with particles, for dimpling the substrate with depressions across the surface area
Implementation Method 2
sand blasting the surface area of the substrate
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A cooking utensil with non-stick capability, the cooking utensil comprising: a cooking vessel; and a handle operatively connected to the cooking vessel for handling the cooking utensil; wherein the cooking vessel includes an inner cooking surface provided with a homogeneous passivation layer having depressions substantially shaped like meteorite craters, said depressions being positioned, shaped and sized about the cooking surface of the cooking vessel for receiving therein a cooking liquid which forms a fluid film and cushions food being cooked by the cooking utensil, thereby providing the cooking utensil with both a physical anti-adherent effect, as well as surface passivation effect.