Concrete-poured sandwich metal plate type composite armor and manufacture method thereof

A sandwich and concrete technology, applied to the structure of the armor plate, etc., can solve the problems of lack of resistance to repeated strikes, large damage range of the target plate, and increased vehicle load, etc., to achieve increased toughness and impact resistance. The effect of impact energy

Inactive Publication Date: 2013-01-09
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the composite armor does not have the ability to resist repeated blows. Since ceramics are brittle materials, the broken ceramics will splash after impact, which will cause secondary damage, and the overall structure of the target plate has a large damage range; the density of ceramics is relatively high, generally greater than 3.0g / cm 3 , which increases the load on vehicles, etc.; ceramics generally need to be sintered at high temperature, and the preparation cost is high; ceramics and metals are generally connected by bonding, which increases the complexity of preparation

Method used

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  • Concrete-poured sandwich metal plate type composite armor and manufacture method thereof

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Experimental program
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Effect test

Embodiment 1

[0034] In this embodiment, a method for preparing concrete pouring sandwich metal plate type composite armor comprises the following steps:

[0035] 1) Preparation of sandwich metal sandwich panels: In this embodiment, the metal front panel 1-1, the metal rear panel 1-2 and the metal core 2 are made of armored steel. , using the sandblasted armor steel plate as the material, a metal core 2 with a thickness of 1 mm and an angle θ of 50° is prepared by hydraulic press molding or bending by a cold bender, and then the armor steel front panel and armor steel rear panel with a thickness of 1 mm The metal core 2 is welded layer by layer between the panels to obtain a sandwich metal sandwich panel;

[0036] 2) Preparation of concrete 3: Mix water, 52.5# cement, silica fume, quartz sand, high-efficiency water reducer, steel fiber or iron powder as raw materials, and mechanically stir for 3 minutes to obtain active powder concrete; silica fume accounts for cement and 20% of the total ...

Embodiment 2

[0039] In this embodiment, a method for preparing concrete pouring sandwich metal plate type composite armor comprises the following steps:

[0040] 1) Preparation of sandwich metal sandwich panels: In this embodiment, the metal front panel 1-1, the metal rear panel 1-2 and the metal core 2 are made of alloy aluminum. , using the sandblasted alloy aluminum plate as the material, a metal core 2 with a thickness of 0.6 mm and an angle θ of 75° is prepared by hydraulic molding or cold bending machine bending, and the metal core 2 is molded by a hydraulic press or cold bending machine Bending to obtain a corrugated structure; then welding the metal core 2 layer by layer between the alloy aluminum front panel and the alloy aluminum rear panel with a thickness of 0.6mm to obtain a sandwich metal sandwich panel;

[0041] 2) Preparation of concrete 3: Mix water, 52.5# cement, silica fume, quartz sand, high-efficiency water reducer, steel fiber or iron powder as raw materials, and mech...

Embodiment 3

[0044] In this embodiment, a method for preparing concrete pouring sandwich metal plate type composite armor comprises the following steps:

[0045]1) Preparation of sandwich metal sandwich panels: In this embodiment, the metal front panel 1-1, the metal rear panel 1-2 and the metal core 2 are made of stainless steel. The sandblasted stainless steel plate is used as the material, and the metal core 2 with a thickness of 0.6mm and an angle θ of 10° is prepared by hydraulic press molding or bending by a cold bender, and then the stainless steel front panel and stainless steel rear panel with a thickness of 0.6mm The metal core 2 is welded layer by layer to obtain a sandwich metal sandwich panel;

[0046] 2) Preparation of concrete 3: Mix water, 52.5# cement, silica fume, quartz sand, high-efficiency water reducer, steel fiber or iron powder as raw materials, and mechanically stir for 15 minutes to obtain active powder concrete; silica fume accounts for cement and 5% of the tota...

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Abstract

The invention provides a concrete-poured sandwich metal plate type composite armor and a manufacture method thereof. The concrete-poured sandwich metal plate type composite armor comprises a metal front faceplate, a metal back faceplate and a metal core body fixed between the metal front faceplate and the metal back faceplate, wherein the metal core body is a metal plate with the angle of theta, the metal front faceplate, the metal back faceplate and the metal core body form into a sandwich metal sandwich plate, and the concrete is poured into a hollow structure of the sandwich metal sandwich plate. The manufacture method of the concrete-poured sandwich metal plate type composite armor comprises the following steps of: 1, firstly, flattening the metal plate material by a flattening machine, blasting sand, carrying out mould pressing by a hydraulic machine or bending by a bending machine to obtain the metal plate with the angle of theta, and welding the metal core body between the metal front faceplate and the metal back faceplate layer by layer, thus forming the sandwich metal sandwich plate; 2, dosing, mixing and stirring raw materials of the concrete; and 3, pouring the concrete into the hollow structure of the sandwich metal sandwich plate, standing, and maintaining, thus obtaining a finished product. The armor provided by the invention is light in weight, low in cost, and good in ballistic performance. The preparation method of the armor is simple, and low in cost.

Description

technical field [0001] The invention belongs to the technical field of composite structural armor, and in particular relates to a concrete pouring sandwich metal plate type composite armor and a preparation method thereof. Background technique [0002] Composite armor is a heterogeneous armor composed of more than two layers of protective materials with different properties. This kind of armor is divided into metal and metal composite armor, metal and non-metal composite armor, and gap armor, which have strong comprehensive protection performance. For the design of composite armor, the main considerations are structural reliability, weight and cost. [0003] Metal and metal composite armor has the characteristics of simple preparation and excellent ballistic performance. However, as the penetrating power of penetrating missiles and rockets continues to increase, armor made of steel and aluminum is difficult to resist the attacks of such weapons. Although continuing to incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F41H5/02C04B28/00
Inventor 夏鸿雁张钱城卢天健乔冠军金峰
Owner XI AN JIAOTONG UNIV
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