Optical Processing Nozzle Segmented Gas Shielding
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Solution Overview
Problem
Existing optical processing apparatuses face issues with outside air engulfment during fluid ejection from the processing nozzle, leading to oxidation of the shaped object due to oxygen in the air, despite the use of purge gases to prevent oxidation.
Innovation Solution
An optical processing nozzle design featuring a combination of fluid mixture discharge pipes and purge gas discharge pipes, where the purge gas is arranged to shield and protect the fluid mixture, preventing ambient air engulfment by being rotationally symmetrical with respect to the light beam path and positioned to expel external atmosphere along the optical axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a purge gas is discharged near the optical path to prevent oxidation, then oxidation prevention is improved, but the purge gas itself engulfs air causing oxidation
Solution Approach 1:
The discharge pipes are segmented into two distinct sets: first set pipes for discharging the material/purge gas fluid mixture and second set pipes for discharging pure purge gas. This segmentation allows each set to perform its specific function without interfering with the other, preventing the purge gas from engulfing air while maintaining oxidation protection
Solution Approach 2:
The first set of discharge pipes acts as an intermediary by discharging the material/purge gas fluid mixture that forms a protective layer between the processed material and ambient air. This intermediate discharge prevents the second set's pure purge gas from directly contacting and engulfing air
2Productivity
If outside air is engulfed during fluid ejection, then fluid delivery is improved, but oxygen in the air causes deterioration of the shaped object
Solution Approach 1:
The system maintains an inert atmosphere by discharging purge gas and material/purge gas fluid mixture that creates a protective environment around the processed material. This inert atmosphere prevents oxygen from the engulfed air from contacting and oxidizing the shaped object, allowing fluid delivery to proceed without oxidation damage
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 design effectively prevents the deterioration of shaped objects by ensuring that the purge gas effectively shields the processing material from ambient air, thereby preventing oxidation.
Implementation Method 1
an optical system in which a condensing point is adjusted to a processing point
Implementation Method 2
second orifices of the second set of purge gas discharge pipes are arranged so that the purge gas ejected from the ejection ports shields and protects the fluid mixture discharged from the first orifices
Data Source
AI summary
Deterioration of a shaped object is prevented. There is provided an optical processing nozzle including an optical system in which a condensing point is adjusted to a processing point, a first set of fluid mixture discharge pipes that discharges, to the processing point, a material/purge gas fluid mixture obtained by mixing a purge gas in a powder processing material, and a second set of purge gas discharge pipes that discharges a purge gas having a purge function to the first set of fluid mixture discharge pipes, each of the fluid mixture discharge pipes of the first set being associated with each of the purge gas discharge pipes of the second set.