Formable Sealant Barrier for HPHT Can Assembly
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Solution Overview
Problem
Current methods for preventing meltable sealant contamination in HPHT processing are costly and inefficient, as anti-wetting materials like stop-off discs require precise fitting and can lead to low yields due to improper fitting.
Innovation Solution
A can assembly for HPHT processing with a meltable sealant and a formable sealant barrier, where the surface within the can is coated with paint or a paint-like substance to prevent the sealant from contacting the powder mixture, and a cap is used to create a sterile environment by heating and sealing the assembly under high pressure and temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If anti-wetting materials like stop-off discs are used to prevent sealant contamination, then contamination prevention is improved, but manufacturing complexity and cost increase due to precise fitting requirements
Solution Approach 1:
The patent introduces a sealant barrier as an intermediary layer between the sealant and the powder mixture. This barrier is formed by coating the can interior surface with a material that prevents sealant adhesion, allowing the sealant to be applied without requiring precise fitting components. The barrier mediates the interaction between sealant and mixture, eliminating the need for complex anti-wetting discs while preventing contamination.
Solution Approach 2:
The patent employs a disposable coating layer applied directly to the can interior. Instead of using expensive, precisely manufactured stop-off discs that must be perfectly fitted, the invention uses a simpler coating material that can be applied economically and discarded after use. This eliminates the need for costly precision fitting while achieving the same contamination prevention function.
2Object-affected harmful factors
If stop-off discs are used to prevent sealant flow, then contamination prevention is improved, but yield decreases due to improper fitting
Solution Approach 1:
The sealant barrier coating serves as a universal intermediary that works regardless of minor variations in can dimensions or assembly tolerances. Since the coating is applied directly to the can interior surface, it adapts to any dimensional variations, ensuring consistent contamination prevention and eliminating yield losses associated with improperly fitted discs.
Solution Approach 2:
The invention changes the physical state and application method of the anti-wetting material from solid precision-cut discs to a coated surface layer. This parameter change allows the protective function to be achieved through surface properties rather than dimensional precision, thereby maintaining high yield across all production batches.
3Reliability
If meltable sealant is used to seal the can, then sealing effectiveness is improved, but contamination risk increases without proper barrier measures
Solution Approach 1:
The patent segments the sealing system into distinct functional layers: the sealant barrier coating on the can interior surface, the meltable sealant in the cavity, and the powder mixture in the container. This segmentation allows each component to perform its specific function independently - the barrier prevents sealant adhesion to the can, the sealant provides the seal, and the mixture remains isolated, thereby maintaining sealing effectiveness while preventing contamination.
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 effectively prevents meltable sealant contamination by creating a sterile environment within the can, reducing recontamination risks and improving yield efficiency through a more cost-effective and precise sealing method.
Implementation Method 1
The can assembly is heated to a temperature sufficient to melt the sealant
Implementation Method 2
The can assembly is heated to a temperature sufficient to cleanse the can
Data Source
AI summary
In one embodiment of the present invention, an assembly for HPHT processing comprises a can with an opening. A powder mixture is disposed within the opening. A substrate is disposed within the opening adjacent the powder mixture. Paint is coated on a surface within the opening and opposite the powder mixture with respect to the substrate. A meltable sealant is disposed within the opening and opposite the substrate with respect to the surface and a cap is covering the opening.