Glass Conduit Heating Enclosure for Viscosity Control

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Solution Overview

Problem

Conventional glass manufacturing apparatuses lack adaptability to handle a range of viscosities and temperatures of molten glass, leading to inefficiencies in the glass production process.

Innovation Solution

A glass manufacturing apparatus with a conduit having a closed sidewall and a heating enclosure with a heating wall and a first heating element, which increases the temperature within the channel of the conduit to manage varying viscosities and temperatures of the molten glass.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional heated conduit is used to deliver molten glass, then the glass can be transported from the melting furnace to the forming vessel, but the conduit lacks adaptability to handle a range of viscosities and temperatures of the molten glass

Engineering Contradiction:
Improveadaptability to range of viscosities and temperaturesVSAvoidconduit structure simplicity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The heating enclosure allows dynamic adjustment of temperature along the conduit by selectively activating different heating zones, enabling the system to adapt to varying molten glass viscosities and temperatures during different production conditions

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The conduit is divided into multiple heating zones with independent heating elements, allowing each section to be controlled separately to handle different viscosity requirements at different positions in the glass flow path

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If the molten glass is exposed to open atmosphere during transport, then the conduit structure is simple, but contamination of the molten glass occurs

Engineering Contradiction:
Improvemolten glass contaminationVSAvoidconduit enclosure structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The heating enclosure creates a controlled atmosphere around the molten glass during transport, preventing contamination while maintaining the necessary thermal environment for glass flow

Inventive Principle:
Principle #39Inert atmosphere (Inert environment)

3Manufacturing precision

If the temperature of molten glass is not controlled during transport, then the apparatus structure is simpler, but the flow consistency and quality of glass ribbon deteriorates

Engineering Contradiction:
Improveglass ribbon quality consistencyVSAvoidtemperature control system
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Temperature sensors provide feedback to the control system, which adjusts heating element power to maintain optimal temperature and viscosity for consistent glass ribbon quality

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system actively controls temperature parameters along the conduit to maintain optimal flow characteristics, preventing premature cooling and ensuring consistent glass ribbon production

Inventive Principle:
Principle #35Parameter changes

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 apparatus ensures a consistent and efficient flow of molten glass by maintaining a controlled temperature and atmosphere, reducing contamination and improving the quality of the glass ribbon produced.

Implementation Method 1

The heating element can be positioned within the chamber between the heating wall and the conduit to increase a temperature within the channel

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

The closed sidewall can be continuous from the delivery vessel to the inlet of the forming vessel to define a closed atmosphere from the delivery vessel, through the conduit, and through the inlet of the forming vessel

Methodology Applied
Scientific EffectPhysical containment: Physical Containment

Data Source

PatentUS20250051209A1Glass manufacturing apparatus and methods
Publication Date: 2025.02.13 CORNING INC
  • US20250051209A1 patent drawing
  • US20250051209A1 patent drawing
  • US20250051209A1 patent drawing

AI summary

A glass manufacturing apparatus can include a conduit connected to a delivery vessel and an inlet of a forming vessel. The conduit includes a closed sidewall surrounding a channel extending in a flow direction of the conduit. The closed sidewall is continuous from the delivery vessel to the inlet of the forming vessel to define a closed atmosphere from the delivery vessel, through the conduit, and through the inlet of the forming vessel. The glass manufacturing apparatus can include a heating enclosure including a heating wall and a first heating element. The heating wall surrounds a chamber within which the conduit extends. The first heating element is positioned within the chamber between the heating wall and the conduit to increase a temperature within the channel. Methods for manufacturing a glass ribbon with a glass manufacturing apparatus are provided.