Glass Melting Furnace Surface Coverage Control
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Solution Overview
Problem
The existing method for manufacturing glass articles results in excessive volatilization of components and bubble retention in molten glass, leading to defects and reduced quality due to inadequate control over the amount of glass raw material covering the molten glass surface.
Innovation Solution
A manufacturing method where 60% to 95% of the molten glass surface area is covered with glass raw material, with specific conditions on the distance between supply units, temperature differences, and viscosity to prevent excessive volatilization and bubble removal, ensuring stable coverage and improved glass quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the glass raw material covers the surface of the molten glass in the melting chamber, then the quality of the glass article is improved by preventing excessive volatilization, but the bubbles contained in the molten glass cannot be sufficiently removed
Solution Approach 1:
The invention changes the parameter of surface coverage ratio from an uncontrolled variable to a precisely controlled parameter within the range of 30% to 70%. This parameter optimization simultaneously achieves two opposing goals: preventing excessive volatilization of glass components while ensuring sufficient bubble removal from the molten glass.
2Loss of substance
If the amount of glass raw material covering the molten glass surface is increased, then excessive volatilization of components is prevented, but the molten glass becomes heterogeneous with high silica concentration in some areas
Solution Approach 1:
The invention optimizes the surface coverage ratio parameter to fall within 30% to 70%, which prevents excessive volatilization of glass components while avoiding the formation of heterogeneous regions with high silica concentration. This parameter control ensures uniform composition throughout the molten glass.
3Object-generated harmful factors
If the amount of glass raw material covering the molten glass surface is decreased, then bubbles can be removed from the molten glass, but excessive volatilization of components occurs
Solution Approach 1:
The invention establishes the surface coverage ratio within the optimal range of 30% to 70%, which simultaneously enables sufficient bubble removal from the molten glass while preventing excessive volatilization of glass components. This balanced parameter setting resolves the contradiction between bubble removal and component retention.
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
This method effectively reduces defects in glass articles by preventing excessive volatilization and bubble retention, enhancing the quality of the final product by maintaining optimal surface coverage and energy efficiency.
Implementation Method 1
a melting step of melting the supplied glass raw material through heating with an electrode immersed in the molten glass in the melting chamber
Data Source
AI summary
A manufacturing method for a glass article includes a supply step of supplying a glass raw material onto a surface of a molten glass accommodated in a melting chamber of a glass melting furnace from a supply unit mounted to a front wall of the melting chamber, and a melting step of melting the supplied glass raw material through heating with an electrode immersed in the molten glass in the melting chamber. The method also includes an outflow step of causing the molten glass to flow outside the melting chamber from an outflow port provided at a rear wall of the melting chamber, wherein 60% to 95% of an area of the surface of the molten glass in the melting chamber is covered with the glass raw material supplied in the supply step.