Non-alkali Glass Lubricant Layer Formation via SO2 Oxidation
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Solution Overview
Problem
The existing methods for manufacturing non-alkali glass struggle to form a lubricant layer effectively, leading to scratches and increased production costs due to the need for excessive SO2 gas, which also causes environmental pollution and equipment corrosion.
Innovation Solution
A method involving the supply of SO2 gas and a SO2 gas oxidation catalyst, such as V2O5, under an oxidation environment to form a CaSO4 lubricant layer on the surface of non-alkali glass, reducing the amount of SO2 required and enhancing scratch resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If excessive SO2 gas is used to form a lubricant layer on non-alkali glass, then scratch resistance is improved, but production cost increases and environmental pollution worsens
Solution Approach 1:
The patent changes the chemical reaction parameters by introducing an oxidation catalyst (V2O5) that enables SO2 to convert to SO3 at lower temperatures, improving the efficiency of lubricant layer formation and reducing the quantity of SO2 gas needed
Solution Approach 2:
The patent introduces V2O5 as an intermediary substance that facilitates the conversion of SO2 to SO3, which then reacts with CaO on the glass surface to form CaSO4 lubricant layer, thereby reducing direct SO2 consumption
2Reliability
If excessive SO2 gas is used to form a lubricant layer, then scratch resistance is improved, but equipment corrosion increases
Solution Approach 1:
The patent changes the reaction temperature parameter by using V2O5 catalyst, allowing the oxidation reaction to occur at lower temperatures (below the glass transition temperature), which reduces equipment exposure to harsh conditions and minimizes corrosion
Solution Approach 2:
V2O5 acts as an intermediary that enables the oxidation reaction to proceed under milder conditions, reducing the direct contact between aggressive SO2 gas and equipment, thereby decreasing corrosion
3Reliability
If SO2 gas is supplied to non-alkali glass, then a lubricant layer can be formed, but the reaction efficiency is low requiring excessive gas
Solution Approach 1:
The patent introduces a chemical catalyst (V2O5) that fundamentally changes the reaction parameters, enabling SO2 oxidation at lower temperatures and increasing reaction speed, thereby improving productivity
Solution Approach 2:
V2O5 serves as an intermediary catalyst that accelerates the oxidation of SO2 to SO3, which then reacts with CaO on the glass surface, significantly improving the efficiency of lubricant layer formation
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 approach effectively prevents scratches on non-alkali glass surfaces during manufacturing, reduces production costs, minimizes environmental impact, and prolongs equipment lifespan by forming a sufficient lubricant layer with a smaller amount of SO2 gas.
Implementation Method 1
supplying SO2 gas and a SO2 gas oxidation catalyst to the non-alkali glass under an oxidation environment to form a CaSO4 lubricant layer
Implementation Method 2
supply of SO2 gas and a SO2 gas oxidation catalyst, such as V2O5
Data Source
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AI summary
A method for forming a lubricant layer on the surface of a glass and a method for manufacturing a glass using the same prevents scratches from occurring at the surface of a glass and decreases corrosion of glass manufacturing equipment. The method for manufacturing a glass includes forming a glass, supplying SO2 gas and a SO2 gas oxidation catalyst to the glass under an oxidation environment to form a lubricant layer at the lower surface of the glass, and annealing the glass.