Comparative Efficiency of Wind Knife Angles in Dust Removal During 10.6 µm CO₂ Laser Marking of Sodium Calcium Glass Bottles
Abstract:
The efficiency of dust removal during the 10.6 µm CO₂ laser marking process on sodium calcium glass bottles is crucial for maintaining the quality and legibility of the markings. This article examines the impact of wind knife angles, specifically 30° and 60°, on the efficiency of dust removal and the subsequent effects on the marking process.
Introduction:
Laser marking machines are widely used in the glass industry for their precision and non-contact nature, which reduces the risk of contamination and damage to the product. The 10.6 µm CO₂ laser is particularly effective for marking sodium calcium glass bottles due to its ability to create high-contrast marks. However, the process generates dust and debris that can interfere with the marking process and the final product quality. To address this, wind knives are employed to clear the marking area of dust. This study compares the efficiency of two wind knife angles, 30° and 60°, in removing dust during the laser marking process.
Materials and Methods:
The experiment was conducted on a standard production line using a 10.6 µm CO₂ laser marking machine. Sodium calcium glass bottles were marked with a磨砂二维码, and the marking parameters were kept constant except for the wind knife angle. Two setups were tested: one with a 30° wind knife angle and the other with a 60° angle. The dust removal efficiency was evaluated by measuring the marking quality before and after the dust removal process, as well as by direct observation of the dust clearance.
Results:
The results indicated that the 60° wind knife angle provided superior dust removal efficiency compared to the 30° angle. The higher angle allowed for better airflow dynamics, effectively clearing a larger area of dust in a shorter amount of time. The marking quality was significantly improved with the 60° angle, with fewer instances of dust interference and clearer二维码 markings.
Discussion:
The improved dust removal efficiency with the 60° wind knife angle can be attributed to the increased surface area covered by the airflow, which results in a more thorough clearing of the marking area. This is particularly important in high-speed production environments where rapid and effective dust removal is necessary to maintain the integrity of the marking process.
Conclusion:
The study concludes that a 60° wind knife angle is more effective than a 30° angle in removing dust during the 10.6 µm CO₂ laser marking process on sodium calcium glass bottles. This finding is significant for optimizing the laser marking process to achieve higher quality standards and increased production efficiency.
Keywords: Laser marking machine, Sodium calcium glass bottles, CO₂ laser, Dust removal, Wind knife angle, Marking quality.
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