Translucent Glass Molding Die with Yttrium Oxide Coating
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Solution Overview
Problem
Existing molding dies face challenges in weight reduction and translucency, with ceramic layers on metallic media not adequately addressing anti-fouling and mold releasability issues, especially when dealing with diverse materials like resin in molded articles production.
Innovation Solution
A translucent material with a glass-based base and an oxide layer containing yttrium oxide and nitrogen, which also serves as a low-adhesion material for molding members, providing improved anti-fouling and weight reduction by incorporating a Group 4A element and potentially an intermediate layer for thermal compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metallic medium with ceramic layer is used for molding die, then anti-fouling capacity and mold releasability are improved, but weight reduction and translucency are compromised
Solution Approach 1:
The invention changes the base material from metal to glass-based material, fundamentally altering the weight parameter while maintaining the ceramic coating structure for anti-fouling performance. This parameter change enables both weight reduction and translucency while preserving reliability through the coated surface structure
Solution Approach 2:
The invention uses a composite structure combining glass-based base material with ceramic coating layers (including yttrium oxide, nitrogen, and Group 4A elements). This composite approach allows the bulk material to provide light weight and translucency while the surface coating provides anti-fouling and mold releasability properties
2Reliability
If a metallic medium with ceramic layer is used for molding die, then mold releasability is improved, but translucency is compromised
Solution Approach 1:
The invention changes the base material from opaque metal to transparent/translucent glass-based material, fundamentally altering the optical properties while maintaining the surface coating structure that provides mold releasability. This enables the molding die to be both translucent and have good mold releasability
Solution Approach 2:
The composite structure uses glass-based material for the bulk (providing translucency) and ceramic coating for the surface (providing mold releasability), allowing both properties to coexist without contradiction
3Reliability
If ceramic layer is formed on metallic medium, then anti-fouling effect is achieved, but weight reduction is compromised
Solution Approach 1:
The invention changes the base material density parameter by selecting glass-based material instead of metal, achieving weight reduction while maintaining the ceramic coating for anti-fouling effect. The lower density of glass provides weight advantage without sacrificing surface protection functionality
Solution Approach 2:
The composite of glass-based material and ceramic coating creates a structure where the lightweight glass substrate provides weight advantage and the thin ceramic layer provides anti-fouling protection, optimizing both weight and reliability
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 solution achieves a low-adhesion, high anti-fouling effect against various materials, including resin, while maintaining mechanical strength and translucency, enhancing mold releasability and reducing weight, suitable for diverse applications.
Implementation Method 1
the oxide layer includes yttrium oxide (Y2O3) as a base material thereof and further includes nitrogen and a Group 4A element, and the oxide layer has low adherability for at least one of animal oil, vegetable oil, and mineral oil
Data Source
Figure 1A~2
Figure 3A~3B
Figure 4~6
AI summary
A translucent material according to this invention includes a base made of a glass-based material, and an oxide layer layered in an upper direction (or on an upper surface) of the base. Examples of the base may include tempered glass using soda lime glass or aluminosilicate glass, heat-resistant glass mostly using borosilicate glass, and quartz glass. The oxide layer includes yttrium oxide (Y2O3) as a base material thereof and further includes nitrogen and a Group 4A element. The translucent material having such a composition is qualified to constitute a low-adhesion material and a molding member. When quartz glass is selected and used as the base material, an intermediate layer may be interposed between the base and the oxide layer.