Sintering Jig Protrusions and Conical Holes for Ceramic Pellets
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Solution Overview
Problem
Existing sintering technologies face challenges in efficiently forming ceramic pellets with minimal surface reaction, leading to coherence issues and reduced performance due to high surface roughness of sintering components.
Innovation Solution
The use of sintering jigs with zirconia components, featuring protrusions and through holes with conical portions, and bolts with screw threads, along with hollow guide molds, to minimize surface contact and reaction during the sintering process, ensuring low surface roughness and efficient ceramic pellet formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sintering components with high surface roughness are used, then the sintering process is simple, but surface reactions and coherence issues occur leading to reduced ceramic performance
Solution Approach 1:
The sintering jig is segmented into multiple functional components: a first plate with protrusions, a second plate with through holes, bolts for securing, and hollow guide molds. Each component serves a specific function in minimizing surface contact and preventing coherence issues during sintering.
Solution Approach 2:
Hollow guide molds are introduced as intermediary elements between the sintering components and the ceramic pellets. These molds minimize direct surface contact between the ceramic and the sintering jig, thereby reducing surface reactions and coherence issues while maintaining proper positioning and formation of the ceramic pellets.
2Object-affected harmful factors
If protrusions and through holes with conical portions are used to minimize surface contact, then surface reactions are reduced, but manufacturing complexity increases
Solution Approach 1:
The surface roughness of the protrusions is precisely controlled to be 0.2 μm or less through specific manufacturing parameters. This parameter change ensures minimal surface contact and reduced surface reactions during sintering, while the conical portions of the through holes facilitate easy insertion and removal of the hollow guide molds.
3Manufacturing precision
If multiple components including hollow guide molds are used, then ceramic pellet formation is optimized, but device complexity increases
Solution Approach 1:
The hollow guide molds serve multiple functions: they minimize surface contact between the ceramic and sintering jig, provide precise positioning for ceramic pellet formation, facilitate uniform sintering through proper heat distribution, and enable easy removal of the formed pellets. This multi-functionality optimizes ceramic pellet formation without requiring additional separate components.
Data Source
AI summary
A sintering jig according to the disclosure includes a first plate including a plurality of protrusions and a second plate stacked on the first plate and including through holes corresponding to the protrusions. The through hole includes a cylindrical portion through which the protrusion enter and exit and a conical portion widening towards an upper surface of the second plate from the cylindrical portion.