Production Process of Aramid Bulletproof Helmets

With high-strength aramid fibers as the core, aramid bulletproof helmets are high-safety equipment featuring light weight and high protection, manufactured through multiple precision processes. Every step, from raw material processing to finished product inspection, adheres to military-grade manufacturing standards.

1. Pretreatment of Core Raw Materials

High-performance aramid filaments are selected and undergo carding and dust removal to eliminate impurities, ensuring the purity and continuity of the fibers.

The fibers are cured in a constant temperature and humidity environment to stabilize their physical properties, preventing breakage or delamination during subsequent processing.

The fiber dosage is accurately proportioned according to the protection level, laying a solid foundation for the helmet's protective performance.

2. Fiber Weaving and Prepreg Formation

A 3D three-dimensional weaving process is adopted to interweave aramid fibers at specific angles, forming a high-density protective base material.

The base material is immersed in a special epoxy resin and subjected to vacuum prepreg treatment, allowing the resin to uniformly penetrate the gaps between fibers and enhance the integrity of the base material.

The thickness and resin content of the prepreg are controlled to ensure a balance between the structural strength and light weight of the helmet after molding.

3. Mold Pressing Molding Process

The prepreg is cut and spliced according to the helmet's shape, then accurately laid into a custom-made mold.

A high-temperature and high-pressure mold press is activated, and the material is held at a constant temperature (120-150℃) and pressure (15-25MPa) for 2-3 hours.

Through the precise constraint of the mold cavity, the material is cured and molded into a helmet shell that conforms to ergonomic design.

4. Post-treatment and Precision Processing

After demolding, the helmet shell is cooled and shaped. Edge burrs are removed, and the external dimensions are corrected to ensure a proper fit when worn.

The surface of the shell is polished and degummed to improve surface flatness, preparing it for subsequent coating.

An electrostatic spraying process is used to uniformly apply a coating with wear-resistant, anti-corrosion, and anti-ultraviolet properties, extending the service life of the helmet.

5. Multi-layer Composite Protection Assembly

A cushioning foam pad is attached to the inner layer, and the cushioning structure is optimized according to the stress points on the head to reduce impact damage.

Anti-slip inner liners and adjustable suspension systems are installed to balance wearing comfort and stability.

Accessories such as protective visors and guide rails are assembled. From fibers to finished products, the production process of aramid bulletproof helmets always takes "protection first, with comfort considered" as its core. Relying on precision manufacturing and strict inspection, these helmets have become core protective equipment in fields such as military, police, and security, safeguarding lives with technological strength.