Preparation of explosive and explosion lamination method of texture interface

A technology of explosives and textures, which is applied in the field of energetic materials and metal composites, can solve the problems that have not been found in the report of the explosive lamination method of the "skin" explosive texture interface, and achieve improved energy utilization efficiency, stable detonation performance, and energy efficiency. The effect of high utilization

Active Publication Date: 2014-12-24
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the published literature, patents, and materials, no report on the preparation of "skin" explosives and the explosive bonding method of the texture interface has been found.

Method used

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  • Preparation of explosive and explosion lamination method of texture interface
  • Preparation of explosive and explosion lamination method of texture interface
  • Preparation of explosive and explosion lamination method of texture interface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In this experiment, a "skin" explosive based on RDX was prepared. Passivate the RDX first. Take 30g of Hexogen and paraffin wax according to the ratio of 95:5, heat it at a constant temperature of 90°C for half an hour, then air-cool in dry air, and turn and passivate Hexogen from time to time until the temperature of Hexogen reaches room temperature. Then take 36g of nitromethane and nitrocellulose to prepare a solution according to the ratio of 96:4, and then add passivated methogen, plasticizer and a certain amount of plasticizer into the nitrocellulose solution and stir and mix evenly. Finally, spread the prepared viscoelastic explosive on the surface of an aluminum foil with a size of 200mm×100mm×0.02mm to ensure that the thickness of the explosive at each position of the aluminum foil is basically the same, and then put it in a cool place to dry for one day.

Embodiment 2

[0046] In this experiment, the aluminum alloy plate and the Q235 steel plate are selected as the cladding plate and the base plate of the explosive lamination respectively. 5×mm×2mm rectangular groove, such as figure 1 shown. The "skin" explosive is used as the explosive pressing explosive, the film material is aluminum foil, the size is 200mm×100mm×0.05mm, and the mass is 2.7g; the main components of the explosive are RDX, nitrocellulose, nitromethane, and phthalic acid After dibutyl ester and nitromethane volatilize, the ratio of RDX to nitrocellulose is 95:5, and the density is 1.5g / cm 3 , Mass 30g. The detonation point is located at the center of the explosive, and the test device is as figure 2 shown. The test procedure is as follows: (1) Use sandpaper to polish the base and the cladding plate to be smooth and smooth, place an inverted “V”-shaped gap column 7 with a height of 7mm on each of the four corners of the upper surface of the substrate 9, and then place the ...

Embodiment 3

[0048] In this experiment, aluminum plate and Q235 steel plate were selected as cladding plate and base plate for explosive lamination respectively. The dimensions of aluminum plate and steel plate were 100mm×100mm×2mm and 100mm×100mm×18mm respectively. A rectangular groove with a width of 2.5mm and a height of 1mm, such as figure 1 shown. Explosive lamination explosives are made of explosive fibers, which are linear, aluminum shell, 3mm in diameter, 150mm in innermost circle diameter, 150mm in average per circle, 800mm in total length of explosive fibers, and wound into a "mosquito coil" shape before charging. like image 3 As shown, the explosive fiber is placed on the surface of the aluminum plate, as Figure 5 shown. The experiment adopts the parallel installation method for explosive lamination. Experimental steps: (1) Use sandpaper to polish the base and cladding boards to make them smooth and smooth, and place an inverted "V"-shaped gap column 7 with a height of 7mm ...

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Abstract

The invention discloses preparation of skin explosive and an explosion lamination method of a texture interface. A base plate with a certain texture structure is arranged on the surface; an outwards-protruding or flat covering plate is pressed into a concave part of the base plate under the action of the skin explosive or other explosion energy; a convex part of a base plate material is sunk into a concave part of the covering plate, so that the tight combination is realized. The skin explosive has the characteristics of stable detonation performance and good viscoelasticity, stability, storage performance and the like, and can be prepared into rolls in advance to be stored, so that explosive distribution time is shortened and the continuous production of compounding metal boards is convenient to realize; the skin explosive can be compounded with metal materials, namely plates, rods, pipes and the like. A texture interface composite plate is subjected to the explosion lamination by adopting a manner of combining physical extruding deformation with a metallurgical bonding phase, and the physical and chemical properties of sheet materials on the two sides of a combining interface are not changed; the explosive amount of a unit area is small and the energy utilization rate is high. The explosion lamination method of the texture interface can be applied to the production of metal plates and thin plates, which have greater physical property difference, such as melting points.

Description

technical field [0001] The invention belongs to the field of energetic materials and metal composites, and mainly relates to the preparation of "skin" explosives and the key technology of explosive bonding of texture interfaces. Background technique [0002] With the development of modern industry, the properties of single-component metal materials have been difficult to meet the requirements. Compared with single metals, layered composite metal plates combine the respective advantages of metal components, and can obtain physical and chemical properties that single metals do not have. performance. The main production methods of layered composite metal plates include explosive welding, rolling, explosive welding + rolling composite method. The component composition and width of the clad plate produced by the rolling clad method are limited by the rolling capacity of the rolling mill. At present, the explosive welding method is widely used to produce the layered metal clad pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08C06B31/24
CPCB23K28/02B23K2103/04B23K2103/10C06B25/28C06B25/34C06B25/36
Inventor 马宏昊李雪交沈兆武薛冰王鲁庆
Owner UNIV OF SCI & TECH OF CHINA
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