Ribbed Non-Stick Cooking Surface for Longer Coating Life
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Solution Overview
Problem
Existing non-stick cooking containers suffer from shortening of the non-stick coating's useful life due to scratching and chipping, particularly on sawtooth corrugated structures, which leads to premature wear and loss of non-stick properties.
Innovation Solution
A non-stick cooking container with a ribbed inner surface featuring ribs and grooves at regular intervals, where the ribs have flat or cambered top surfaces and the grooves have flat or cambered bottom surfaces, covered with a non-stick coating, and an anodic oxidation layer is applied between the surface and the coating to enhance adhesion and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sawtooth corrugated structure is used on the cooking container surface, then the non-stick coating adhesion is improved, but the coating becomes easily scratched and chipped during use
Solution Approach 1:
The invention divides the corrugated structure into two distinct parts: crests (protruding portions) and valleys (recessed portions). The non-stick coating is applied differently to each part - the crests receive a first non-stick coating while the valleys receive a second non-stick coating. This segmentation allows each part to be optimized for its specific function: crests for adhesion and valleys for protection against scratching and chipping.
Solution Approach 2:
The invention applies different coating properties to different locations on the corrugated surface. The crests are coated with a non-stick coating optimized for adhesion to the substrate, while the valleys are coated with a non-stick coating optimized for resistance to scratching and chipping. This local differentiation of coating quality resolves the contradiction by ensuring each region has the appropriate properties for its specific role.
2Duration of action of stationary object
If a ribbed structure with grooves is used to protect the non-stick coating, then the coating durability is improved, but the manufacturing complexity increases
Solution Approach 1:
The ribbed structure with crests and valleys is pre-formed on the cooking container surface before the non-stick coating is applied. This preliminary structuring creates the protective geometry that will later protect the coating, eliminating the need for post-coating structural modifications and simplifying the overall manufacturing process while maintaining coating durability.
Solution Approach 2:
The ribbed structure acts as an intermediary element between the substrate and the non-stick coating. The crests and valleys provide a mechanical framework that protects the coating without requiring direct modification of the coating application process itself. This intermediary structure simplifies manufacturing by separating the structural protection function from the coating function.
3Reliability
If the non-stick coating is applied on a rough surface, then the coating adhesion is improved, but air pores form after sintering reducing coating consistency
Solution Approach 1:
The invention segments the surface into crests and valleys, applying different coating conditions to each. The crests provide roughness for adhesion, while the valleys are designed to be free of air pores after sintering. This segmentation allows the coating to achieve both good adhesion and high consistency without the trade-off that would exist on a uniformly rough surface.
Solution Approach 2:
The invention creates a controlled replication of the ribbed structure pattern across the cooking container surface. By consistently copying the crest-valley geometry and applying coating under controlled conditions, the process achieves uniform adhesion and consistency across the entire surface, eliminating the variability that would result from uncontrolled roughness.
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 effectively prolongs the life of the non-stick coating by protecting it from scratches and chips, maintaining non-stick properties and preventing air pores, resulting in a more consistent and resistant coating.
Implementation Method 1
an anodic oxidation layer is disposed between the surface of the ribs and grooves on the one hand and the non-stick coating on the other
Data Source
AI summary
Provided is 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 and grooves arranged at regular intervals, a non-stick coating covering the surfaces of the ribs and the grooves, the ribs comprising a top surface, the grooves comprising a bottom surface. It is difficult to scratch or chip off the non-stick coating of the non-stick cooking container, which allows the cooking container to retain the non-stick properties over a long period.