Enamel composition, method for manufacturing same, and kitchenware using same
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Solution Overview
Problem
Conventional enamel compositions require high firing temperatures, leading to deformation of metal base materials and difficulty in cleaning, as they cannot be applied to outer portions of cooking appliances and necessitate cumbersome water maceration for contaminant removal.
Innovation Solution
An enamel composition with a optimized component system including P2O5, SiO2, Al2O3, ZrO2, Na2O, Li2O, B2O3, TiO2, CoO, and NiO, which can be fired at a lower temperature to prevent deformation and enhance thermal shock resistance and durability, allowing for easy contaminant removal at room temperature without water maceration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional enamel composition is fired at high temperature (850°C or more), then the enamel coating is formed, but the metal base material structure is deformed
Solution Approach 1:
The patent changes the chemical composition parameters of the enamel formulation by incorporating specific ratios of glass formers (SiO2, B2O3, P2O5), network modifiers (Na2O, K2O, CaO), and metal oxides (TiO2, Al2O3, ZrO2). This compositional parameter change enables the enamel to achieve proper coating formation at reduced firing temperatures, thereby preventing base material deformation while maintaining coating integrity
Solution Approach 2:
The patent creates a composite enamel system combining multiple oxide components with specific functional roles: glass formers for network structure, network modifiers for viscosity control, and metal oxides for catalytic activity and thermal stability. This composite material approach allows the enamel to exhibit optimized thermal and chemical properties that enable low-temperature firing without compromising coating performance
2Reliability
If conventional enamel composition is used, then the enamel coating is formed, but cleaning requires water maceration for a predetermined time period
Solution Approach 1:
The patent modifies the chemical composition parameters by incorporating specific amounts of P2O5 (1-10 wt%), TiO2 (0.1-5 wt%), and other metal oxides that enhance the enamel's surface properties. These compositional changes create an enamel coating with improved contaminant release characteristics, allowing easy cleaning without prolonged water maceration while maintaining proper coating formation
Solution Approach 2:
The patent designs the enamel composition to possess self-cleaning properties through its chemical composition. The specific oxide combination creates surface characteristics that facilitate contaminant removal, making the enamel coating self-service in terms of maintenance and cleaning requirements
3Reliability
If conventional enamel composition is used, then the enamel coating is formed, but bubbles are generated during firing
Solution Approach 1:
The patent adjusts the chemical composition parameters, particularly the ratios of glass formers, network modifiers, and metal oxides, to control the viscosity-temperature relationship and gas evolution characteristics of the enamel. This parameter optimization suppresses bubble generation during firing while ensuring proper coating formation and adhesion
4Reliability
If conventional enamel composition is used, then the enamel coating is formed, but thermal shock resistance is insufficient
Solution Approach 1:
The patent develops a composite enamel system incorporating specific ratios of glass formers (SiO2, B2O3, P2O5), network modifiers (Na2O, K2O, CaO), and metal oxides (TiO2, Al2O3, ZrO2, Fe2O3). This composite structure provides optimized thermal expansion characteristics and thermal shock resistance while maintaining proper coating formation, addressing both the coating integrity and thermal stability requirements
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 enamel composition achieves superior thermal shock resistance and durability, prevents base material deformation, and facilitates easy contaminant removal without high-temperature processing or water maceration, while suppressing bubble generation during firing.
Implementation Method 1
the enamel composition is fired at a high temperature of approximately 850° C. or more to form an enamel coating layer
Implementation Method 2
a pyrolysis method of burning contaminants at high temperatures to ash is known as a technology through which the inner wall of the cavity can be easily burned
Data Source
AI summary
Disclosed are: an enamel composition which has excellent cleaning functionality, and which, when used to form an enamel coating on a metal base material, ensures excellent thermal shock resistance and durability by suppressing the generation of defects caused by gas generation; a method for manufacturing same; and kitchenware using same. In addition, the enamel composition according to the present invention has excellent thermal shock resistance and durability due to having a component system in which glass-forming components and catalytic components are optimized.