Composite Glass Sheet Manufacturing via Segmented Overflow Weir
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing glass sheet manufacturing processes struggle to efficiently form composite glass sheets with multiple regions of different glass compositions, as they often result in mixing or diffusion of glass compositions, leading to undesirable properties and limitations in glass sheet configuration.
Innovation Solution
A method involving a divided delivery tube system and an overflow distributor, where molten glass compositions of different compositions are flowed over specific segments of a weir to form a composite glass sheet with distinct regions, maintaining their separation through laminar flow and controlled viscosity ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing glass sheet manufacturing processes are used to form composite glass sheets with multiple regions of different glass compositions, then glass sheets can be produced, but mixing or diffusion of glass compositions occurs leading to undesirable properties
Solution Approach 1:
The delivery tube is divided into multiple flow channels, with each flow channel delivering a different glass composition to a specific region of the forming surface. This segmentation prevents mixing by providing separate delivery paths for each glass composition, directly addressing the technical contradiction by improving separation precision while preventing harmful diffusion.
Solution Approach 2:
Different regions of the forming surface receive different glass compositions with specific properties tailored to those regions. The system enables local customization of glass composition characteristics (such as thermal expansion coefficients) at different transverse positions, improving manufacturing precision while avoiding unwanted mixing through controlled localized delivery.
2Manufacturing precision
If glass compositions are flowed over a weir to form composite glass sheets, then glass sheets with distinct regions can be formed, but control over glass sheet configuration is limited
Solution Approach 1:
The divided delivery tube system segments the glass composition delivery into multiple independent flow channels, each可控 to deliver specific compositions to predetermined regions. This enables precise control over glass sheet configuration while maintaining adaptability through independent adjustment of each flow channel's parameters.
Solution Approach 2:
The system allows dynamic control of glass composition delivery by adjusting flow rates, temperatures, and composition ratios in real-time for each flow channel. This dynamic adjustability enhances both manufacturing precision and adaptability, enabling the formation of various composite glass sheet configurations according to different requirements.
3Reliability
If multiple glass compositions are supplied to form composite glass sheets, then enhanced properties such as thermal expansion control can be achieved, but the process complexity increases
Solution Approach 1:
The divided delivery tube system divides the supply process into separate flow channels for different glass compositions, enabling precise control over thermal expansion properties in different regions. While the device structure becomes more complex, the segmentation provides reliable control over thermal expansion by preventing mixing and ensuring each region receives the intended composition.
Solution Approach 2:
The divided delivery tube system serves multiple functions: delivering different glass compositions, controlling flow rates, maintaining temperatures, and positioning compositions at specific transverse positions. This multi-functionality justifies the increased device complexity by providing comprehensive control over composite glass sheet properties including thermal expansion.
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 allows for the precise formation of composite glass sheets with well-defined regions of different glass compositions, enhancing the control over glass sheet configuration and properties, such as thermal expansion and stress distribution, while minimizing mixing and diffusion.
Implementation Method 1
maintaining their separation through laminar flow and controlled viscosity ratios
Data Source
AI summary
A method includes supplying a conjoined molten glass stream to an overflow distributor. A cross section of the conjoined molten glass stream includes a first cross sectional portion and a second cross sectional portion. The first cross sectional portion includes a first glass composition. The second cross sectional portion includes a second glass composition different than the first glass composition. The first glass composition is flowed over a first transverse segment of a weir of the overflow distributor. The second glass composition is flowed over a second transverse segment of the weir of the overflow distributor.