Metal packaging ceramic ball composite armor, preparation method and multi-projectile-resistant light target plate

Abstract

The invention provides a metal packaging ceramic ball composite armor. The metal packaging ceramic ball composite armor comprises a framework and second metal, wherein the framework is composed of three first metal layers and ceramic balls, and gaps of the framework are filled with the second metal. The melting temperature of the first metal in the three first metal layers is higher than that of the second metal; through holes are distributed in the three first metal layers and used for being filled with infiltrated second metal to form a three-dimensional penetrating network so as to lock the first metal layers and the ceramic balls; the three first metal layers comprise a top layer, a middle layer and a bottom layer; first round holes are uniformly distributed in the lower surface of the top layer and the upper surface of the middle layer; second round holes are uniformly distributed in the lower surface of the middle layer and the upper surface of the bottom layer; the ceramic ball is embedded and fixed in the first round hole and the second round hole; the lowest point of the first round hole in the middle layer is not lower than the highest point of the second round hole in the middle layer; the first round holes and the second round holes are arranged in a non-tight manner, namely gaps exist among the round holes; and the number of the ceramic balls arranged in the second round holes at least covers the gaps of the projections of the ceramic balls in the first round holes.

Description

technical field [0001] The invention generally relates to the technical field of ceramic composite armor, and provides a metal-encapsulated ceramic ball composite armor, a preparation method and a lightweight target plate for resisting multiple bullets. Background technique [0002] With the continuous improvement of the power of battlefield damage weapons, all kinds of ground armored vehicles are facing more and more threats. In order to improve their anti-ballistic performance, the surface density of their protective armor is also getting higher and higher, which has a great impact on mobility. [0003] Aircraft performing ground combat missions are mainly faced with the threat of small and medium-caliber armor-piercing weapons on the ground, and there is also a great demand for lightweight armor. [0004] In addition, the degree of automation of weapons is getting higher and higher, and the protective armor may be hit by multiple bullets in a small area, which requires th...

AI Technical Summary

Problems solved by technology

[0012] McDougal et al. (US 3705558) use steel wire mesh to fix the ceramic balls. The steel wire mesh is flexible and variable, and the ceramic balls are difficult to fix completely.

[0013] Huet et al. (US 4534266) use an interlocking shell to lock the ceramic balls. The processing technology is complex and the gap between the ceramic balls is too large, there are many leakage surfaces, and the large longitudinal thickness leads to high surface density.

[0014] Yeshurun ​​et al. (US 5134725) only fix one layer of ceramic balls in the double-layer ceramic balls, the other layer is placed in the gap position of the ceramic balls, and the ceramic balls are packaged with liquid vulcanized silicone at room temperature. Effective confinement by ceramic balls

[0015] To sum up, the arrangement of ceramic balls in the existing composite armor is mostly a close-packed structure, and the restraining effect of the matrix material on the ceramic balls is poor, and the ceramic balls are difficult to fix according to the design, and there are bulletproof weak areas

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