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The helmet UV pretreatment box is a specialized chamber designed to simulate long-term ultraviolet (UV) exposure for safety helmets, enabling accelerated aging tests to assess material degradation and performance stability. This article details its applications, technical specifications, operational principles, and adherence to international standards, essential for quality control in helmet manufacturing.
The chamber complies with global standards such as ISO 4892 (plastics aging), ASTM G154 (non-metallic exposure), and EN 13856 (helmet testing), ensuring reproducible results for material durability assessments.
| Paraméter | Specifikáció |
|---|---|
| UV Wavelength | 280–385 nm (UV-A/B) |
| Irradiance | 50–150 W/m² (adjustable) |
| Temperature Control | RT–80°C (±2°C) |
| Humidity Control | 20%–95% RH (±5%) |
| Sample Capacity | Up to 10 helmets (adjustable racks) |
The chamber uses UV-A/B lamps to replicate solar radiation, accelerating material degradation through photochemical reactions. Integrated sensors monitor irradiance, temperature, and humidity, while rotating racks ensure uniform exposure.
Accelerated Aging: Helmets are exposed to UV cycles simulating months/years of outdoor use.
Property Analysis: Post-exposure testing evaluates mechanical strength, colorfastness, and impact resistance.
Lifespan Prediction: Data guides material selection and design improvements for enhanced durability.
This chamber enables manufacturers to predict long-term performance, optimize formulations, and ensure compliance with safety standards. Its precise environmental control and compliance with global standards make it a critical tool for developing reliable protective equipment.
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