Silane-Based Transparent Coating for Ceramic Heat-Cooker Durability
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Solution Overview
Problem
Conventional heat-cookers with ceramic coating layers suffer from durability issues due to frequent contact with cooking utensils, leading to degradation in corrosion resistance, wear resistance, and non-stick characteristics, and are often heavy due to enamel layers.
Innovation Solution
A silane compound-based transparent coating layer containing a filler is formed on the outer surface of the ceramic coating layer of the heat-cooker, using a ceramic coating composition with a silane compound, silica sol, functional filler, ceramic powder, and pigment, and a transparent coating composition with mica or plate-shaped alumina particles to enhance durability and non-stick properties while maintaining a lightweight design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a ceramic coating layer is applied to improve corrosion resistance and wear resistance, then the durability is improved, but the coating layer frequently contacts cooking utensils causing damage and deterioration in chemical and mechanical properties
Solution Approach 1:
The patent applies a composite coating structure consisting of a ceramic coating layer (providing corrosion and wear resistance) combined with a transparent coating layer containing silane compounds and fillers (providing mechanical strength and protection against utensil contact). This composite structure allows both layers to contribute their specific properties, resolving the contradiction between durability improvement and vulnerability to mechanical damage.
Solution Approach 2:
The transparent coating layer is applied beforehand as a protective buffer layer over the ceramic coating layer. This prior cushioning layer absorbs and distributes the mechanical stress from cooking utensil contact, preventing direct damage to the underlying ceramic coating layer and maintaining its chemical and mechanical properties.
2Reliability
If enamel layers are added to improve chemical and mechanical properties, then corrosion resistance and wear resistance are significantly improved, but the heat-cooker becomes heavyweight
Solution Approach 1:
The patent changes the material parameters by replacing traditional heavy enamel layers with a lighter transparent coating layer containing silane compounds and specific fillers. This parameter change maintains the protective function (corrosion and wear resistance) while significantly reducing the weight of the heat-cooker, resolving the contradiction between improved reliability and increased weight.
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 improves corrosion resistance, wear resistance, and heat resistance, making the heat-cooker more durable and non-stick, while maintaining a lightweight structure compared to enameled heat-cookers, thus enhancing overall performance.
Implementation Method 1
a silane compound-based transparent coating layer containing a filler is formed on the outer surface of a ceramic coating layer
Implementation Method 2
improve the physical properties such as durability, heat resistance and the like of such a heat-cooker
Implementation Method 3
improve corrosion resistance, wear resistance and the like of an aluminum heat-cooker
Implementation Method 4
improve the physical properties such as durability, heat resistance and the like of such a heat-cooker
Data Source
AI summary
The present invention relates to a heat-cooker having excellent durability wherein a silane compound-based transparent coating layer containing filler is formed on the external surface of a ceramic coating layer of a cooking surface of a heat-cooker. Compared to conventional porcelain enamel based heat-cookers, the cooking utensil of the present invention is lighter, and the transparent coating layer protects the ceramic coating layer to thereby improve durability and provide excellent non-stick characteristics.