The manufacturing process of bulletproof steel plates: forging an indestructible barrier

Modern bulletproof steel plates utilize a dual hot-rolling and quenching process. For example, Domax 500 series, produced by Sweden, achieves a tensile strength exceeding 1500 MPa through a 900℃ austenitization followed by rapid cooling. Composite armor technology combines ceramic layers with high-density polyethylene fibers, achieving 100-meter protection against 7.62mm armor-piercing rounds within a 3cm thickness.

Precision stamping is the core of the forming process. A 2000-ton CNC punch press shapes the steel plate with a ±0.05mm tolerance, while a hydraulic stretching press precisely controls the mesh elongation to 15%. Hot-dip galvanizing provides protection in a 460℃ zinc bath, forming an 80-120μm composite anti-corrosion layer that guarantees 3000 hours of corrosion resistance in marine environments.

In the future, intelligent dynamic armor may utilize electromagnetic hardening technology to increase surface hardness at the moment of threat contact, continuing the technological evolution from "hard-on-hard" to "soft-overcoming-hard."