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Flat plate exploder capable of improving velocity of flyer

A flying piece and flat plate technology, which is applied in the direction of blasting barrels, offensive equipment, weapon accessories, etc., can solve the problems of expensive special explosives, and achieve the effect of ensuring powder sintering or synthesis quality, uniform impact force, and increasing size

Active Publication Date: 2008-08-06
大连鑫凯多晶金刚石科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, due to the influence of the density and detonation velocity of general civilian industrial explosives, the thickness of the flyer can only be 2-3mm in order to ensure the speed of the flyer is above 3000m / s
And if the thickness of the flyer is increased, the speed can only be maintained by increasing the density, detonation velocity and charge height of the explosive, because the price of the special explosive with an excessively high detonation velocity is very expensive, and it is difficult to meet the needs of general production

Method used

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  • Flat plate exploder capable of improving velocity of flyer
  • Flat plate exploder capable of improving velocity of flyer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] As shown in Figure 1: the density is 1.1 ~ 1.3g / cm 3 Hollow cylinder made of pure cement or polyurethane and other low-density plastics, that is, medium cylinder 1, medium cylinder 1 has a bottom cover, its outer diameter is 278mm, inner diameter is 118mm, and height is 120mm. It is convenient for the flying piece 2 to be placed on the central hole 3 . The inner diameter of the medium cylinder 1 is equal to the diameter of the explosive column 4. The explosive column 4 is placed on the fly piece 1 and connected to the inner wall of the medium cylinder 1. The height of the medium cylinder 1 is 10 mm higher than that of the explosive column 4. The detonator on the explosive column 3 should be ensured 9 exposed above the medium cylinder 1, so that detonation. Explosive column 4 can be the smooth cylinder of outer surface, preferably as shown in Figure 3, is provided with evenly distributed cross section and is the vertical edge of triangle in the cylindrical surface of ex...

Embodiment 2

[0015] As shown in Figure 2: there is a plastic barrel 5, and at the center of the bottom of the plastic barrel 5 there is a central hole 3 with a diameter slightly smaller than that of the fly piece 2, the fly piece 2 is pressed on the center hole 3, and the explosive column 4 is placed on the fly piece 2 , water 6 is filled in the plastic barrel 5, the plastic barrel 5 and the water 6 form a medium barrel 1 wrapped outside the explosive column 4, and a steel plate 7 with a thickness of 2 to 3mm is arranged inside or outside the barrel bottom of the plastic barrel 5, Can be placed on the bottom of the bucket or glued to the bottom of the bucket. The outer diameter of plastic bucket 5 is 3 times of explosive column 4 diameters, and the height of water 6 is exactly the height of medium column 1, should be higher than explosive column 30mm, and detonator 9 can be detonated in water 6 or in air.

[0016] The present embodiment explosive density 1.62g / cm 3 , the detonation veloci...

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Abstract

The invention discloses a plate explosion device which can improve the speed of a flyer, which is provided with a dielectric liner (1) with a bottom sealing and with a density of 0.9 to 2g / cm <3>. The bottom sealing is provided with a central hole (3) with a diameter smaller than the flyer (2), the flyer is arranged on the central hole (3) and an explosive cylinder (4) is positioned on the flyer (2) and is connected with an internal wall of the dielectric liner (1). The height of the dielectric liner (1) is higher than the height of the explosive cylinder (4), namely, 30 to 140mm. An external diameter of the dielectric liner is 2 to 3 times bigger than the diameter of the explosive cylinder (4). The plate explosion device reduces the sparse effect of the explosion products to the surroundings, therefore enlarge the pressure to the flyer by the explosion products, as a result, the flying speed is accelerated and the pressure of the flyer reduces from the center to the outer edge. Therefore, the flyer keeps plate flying and the impact received by the powder is even, which guarantees the powder calcinations or compounding quality.

Description

Technical field: [0001] The invention relates to an explosive device for explosive compaction, in particular to a flat explosive device with simple structure, convenient operation, low cost and the ability to increase the speed of flying pieces. Background technique: [0002] Explosive sintering or explosive synthesis, also known as explosive compaction, is a general term for the technology of using explosive energy to sinter powder materials into a block or synthesize another material, such as explosive sintered tungsten powder, ceramic powder, etc. or explosively synthesized diamond, cubic nitrogen boron etc. At present, two kinds of explosive devices are commonly used in explosive compaction: one is a circular tube flying explosive device, that is, a metal inner tube is used, and a certain powder (compaction or synthesis) is housed in the metal inner tube, and then another metal outer tube is used to , explosives are installed outside the outer tube, and there is a certa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/08F42B3/00
Inventor 张路青张凯
Owner 大连鑫凯多晶金刚石科技有限公司
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