3results about How to "Good bulletproof" patented technology

This invention relates to a method for producing low-density, high-strength, and high-toughness protective steel plates from continuously cast billets, belonging to the field of metallurgy. The steel plate is an Fe-Mn-Al-C series austenitic low-density steel plate with an austenitic matrix supplemented by dispersed fine precipitated carbides, achieving high strength and high toughness, thus meeting the requirements for ballistic protection. The steel plate has a production thickness of 6-12 mm, a width of 1600-3000 mm, and a density of 6.75-7.05 g / cm³. 3 It has a density 7.85 g / cm³ higher than that of conventional steel. 3 The steel plate exhibits at least a 10% reduction in weight, good machinability and weldability, and excellent ballistic protection performance. A 6mm thick steel plate meets the NATO AEP STANAG 4569 standard Level I ballistic protection requirements, while a 12mm thick steel plate meets the NATO AEP STANAG 4569 standard Level II ballistic protection requirements. Production process: smelting—continuous casting—slow cooling—rolling—heat treatment—finishing—inspection—warehousing.

The invention relates to the technical field of bulletproof product manufacturing, and discloses a manufacturing method and application of an anti-sinking non-woven fabric, and the method comprises the steps of unwinding high-strength fibers, separating, bundling, spreading, gluing, rolling, cutting and bonding, orthogonal compounding, hot pressing, ultraviolet curing and the like. And the adhesive is an olefin adhesive added with a photoinitiator, so that the problems of delamination and large depression can be avoided when the bulletproof product is prepared.

The invention discloses a manufacturing method and application capable of enhancing sinking resistance of non-woven cloth, the method comprises the steps of unwinding, dividing, bundling, spreading, gluing, rolling, cutting and bonding, orthogonal compounding, hot pressing and the like of high-strength fibers, and more than two layers of orthogonal composite sheets (non-woven cloth) are hot-pressed together to obtain a bulletproof product. Wherein the used adhesive is a polyurethane water-based adhesive, an epoxy water-based adhesive, an acrylate water-based adhesive and a corresponding high-temperature curing agent, and the high-temperature curing agent does not react with the adhesive in the stages of unwinding, filament splitting, bundling, filament spreading, gluing, winding, cutting and bonding, orthogonal compounding and the like; in the hot pressing stage, the high-temperature curing agent and the adhesive are subjected to a cross-linking curing reaction, the bonding strength between the adhesive and fibers is enhanced, and the problems of delamination and large depression can be avoided when the non-woven fabric is made into bulletproof products.