Non-stick cooking container
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing non-stick cooking vessels suffer from shortened coating life due to scratching and peeling of the non-stick coating on corrugated surfaces, which compromises their durability and non-stick properties.
Innovation Solution
A non-stick cooking vessel with a ribbed surface featuring flat or curved ribs and grooves, where the ribs have apex surfaces and the grooves have flat bottom surfaces, enhancing wear resistance and ensuring better adhesion and homogeneity of the non-stick coating, along with an anodic oxidation layer for added protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a corrugated ribbed surface with sawtooth profile is used, then the structural strength is improved, but the non-stick coating adheres poorly and peels easily
Solution Approach 1:
The patent applies different surface geometries to different parts of the ribs: the top surface is made flat to provide a stable base for coating adhesion, while the side walls maintain inclined angles for structural strength. This local differentiation resolves the contradiction between strength and adhesion.
Solution Approach 2:
Instead of using sharp sawtooth profiles that point upward (which cause coating peeling), the patent inverts the geometry to have flat top surfaces that provide a stable platform for coating deposition, fundamentally changing the interaction between coating and surface.
2Reliability
If sandblasting or shot-blasting treatment is applied, then the surface roughness is increased for coating adhesion, but the coating scratches and wears quickly
Solution Approach 1:
The patent controls the surface roughness parameter within a specific range (Ra 3-8 μm) through sandblasting or shot-blasting, optimizing both adhesion and wear resistance. Additionally, the flat top surface geometry changes the mechanical stress distribution, reducing coating scratching during use.
3Stability of the object's composition
If the rib separation interval is too small, then the structural integrity is maintained, but the coating thickness uniformity deteriorates
Solution Approach 1:
The patent uses a moderate rib separation interval (0.3-1 mm) that provides sufficient structural support while allowing adequate space for uniform coating deposition. This partial optimization of the interval parameter balances both structural integrity and coating uniformity.
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 significantly extends the life of the non-stick coating by preventing scratching and peeling, maintaining non-stick properties and enhancing the cooking vessel's durability and corrosion resistance.
Implementation Method 1
an anodic oxidation layer is placed between the surface of the ribs and the grooves, on the one hand, and the non-stick coating, on the other hand
Implementation Method 2
a non-stick coating deposited on a rough intermediate layer produced by plasma spraying on a ribbed surface
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The present invention concerns a non-stick cooking container, comprising a container body, in which the container body comprises a ribbed inner surface, the ribbed inner surface comprising a plurality of ribs (21) and grooves (22) disposed at regular intervals, a non-stick coating (30) covering the surfaces of the ribs (21) and the grooves (22), the ribs (21) comprising a top surface (211), the grooves (22) comprising a bottom surface (221). It is difficult to scratch or chip off the non-stick coating of the non-stick cooking container according to the present invention, which allows the cooking container to retain the non-stick properties of same over a long period.