Enamel composition, manufacturing method therefor, and cooking utensils
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Solution Overview
Problem
Existing enamel compositions require soaking in water for cleaning, leading to durability degradation and increased glass crystallization tendencies during calcination, especially when containing P2O5 and Group I oxides.
Innovation Solution
An enamel composition with a specific ratio of P2O5, SiO2, B2O3, Group I oxides, and post-transition or transition metal oxides, along with Group II oxides, that allows for effective cleaning without water and prevents glass crystallization, ensuring durability and optimal color quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the enamel composition includes P2O5 and Group I oxides to enable easy cleaning without high-temperature heating, then cleaning ease is improved, but durability of the calcinated enamel composition is degraded
Solution Approach 1:
The patent changes the chemical composition parameters by limiting P2O5 to 1-10 wt% and Group I oxides to 2-15 wt%, while adding specific amounts of Group II oxides (3-20 wt%) and aluminum oxide (5-15 wt%). This parameter optimization resolves the contradiction by maintaining cleaning ease through controlled P2O5 content while preventing durability degradation through balanced composition ratios.
Solution Approach 2:
The patent creates a composite enamel composition by combining multiple oxide components in specific ratios: P2O5, SiO2, B2O3, Group I oxides, Group II oxides, aluminum oxide, and transition metal oxides. This composite approach allows the composition to achieve both easy cleaning properties (from P2O5) and durability (from Group II oxides and aluminum oxide) simultaneously.
2Productivity
If the enamel composition includes P2O5-B2O3 to enable cleaning without water soaking, then cleaning efficiency is improved, but glass crystallization tendencies increase during calcination causing degradation in color quality and luminance
Solution Approach 1:
The patent optimizes the P2O5/B2O3 ratio parameter by limiting P2O5 to 1-10 wt% and B2O3 to 2-20 wt%, ensuring the ratio remains controlled. This prevents excessive glass crystallization during calcination while maintaining the water-free cleaning efficiency. The balanced ratio is key to resolving the contradiction between cleaning performance and color quality.
Solution Approach 2:
The patent introduces Group II oxides (3-20 wt%) and aluminum oxide (5-15 wt%) as intermediary substances that mediate between P2O5 and B2O3. These intermediaries suppress glass crystallization tendencies caused by the P2O5-B2O3 system while preserving the cleaning efficiency, thus preventing color quality degradation.
3Ease of operation
If the enamel composition uses conventional ratios of P2O5 and Group I oxides to achieve contaminant removal, then cleaning performance is improved, but durability is degraded
Solution Approach 1:
The patent fundamentally changes the conventional parameter ratios by limiting P2O5 to 1-10 wt% and Group I oxides to 2-15 wt%, while introducing Group II oxides at 3-20 wt%. This parameter reconfiguration maintains contaminant removal capability through controlled P2O5 content while significantly improving durability through the stabilizing effect of Group II oxides and aluminum oxide.
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 composition enables efficient contaminant removal without water, maintains durability, and prevents glass crystallization during calcination, ensuring excellent cleaning performance and color quality.
Implementation Method 1
The inner wall of the cavity can be easily cleaned through a pyrolysis where contaminants are burned to ashes at high temperatures
Implementation Method 2
when the enamel composition includes P2O5—B2O3, glass crystallization tendencies can be increased during a calcination process, causing degradation in color quality and luminance
Data Source
AI summary
The present invention relates to an enamel composition capable of implementing cleaning without swelling using moisture, to a manufacturing method therefor, and to cooking utensils. The enamel composition according to the present invention comprises: 20-60 wt % of P2O5; 1-20 wt % of SiO2; 1-30 wt % of B2O3; 10-30 wt % of at least one of Li2O, Na2O, and K2O; 10-40 wt % of at least one selected from the group consisting of post-transition metal oxides and transition metal oxides. Therefore, the present invention provides an enamel composition capable of implementing cleaning without swelling using moisture, a manufacturing method therefor, and cooking utensils.