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Integrated scattering type oriented explosion cylinder

A decentralized and cylindrical technology, applied in blasting and other directions, can solve the problems of unsuitable four-way peripheral blasting, etc., achieve the effect of low cost, simple manufacturing process, and guaranteed transportation

Inactive Publication Date: 2014-08-06
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, only double-sided structure is not suitable for four-way perimeter blasting

Method used

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  • Integrated scattering type oriented explosion cylinder
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] see figure 1 , to make a four-direction integrated decentralized directional explosion cylinder: the height of the cylinder 3 is 15cm, the outer diameter is 15mm, the wall thickness is 1.5mm, and the material is #45 steel. There are 16 conical pits 1 on the cylinder. The top angle is 80°, the length of the busbar in the pit is 4.5mm, and it is divided into four rows and arranged evenly, with 4 evenly distributed in each row, and the first row is evenly distributed at a distance of 30mm from the cylinder port. The distance between the centers of two adjacent rows of dimples in the longitudinal direction of the cylinder body 3 is 30 mm. One end of the cylinder is processed with external threads, and the other end is provided with internal threads of corresponding specifications. The position of the pit is marked on the cylinder according to the pre-design. A conical die with an angle of 80° is stamped to form the dimples. After all the pits are made, place them for natu...

Embodiment 2

[0024] Make two integrated decentralized directional explosive cylinders: the height of the cylinder is 8cm, the outer diameter is 12mm, the wall thickness is 2mm, and the material is #45 steel. One end of the cylinder is processed with external threads, and the other end is processed with internal threads of the same specification. There are 9 semicircular pits on the design cylinder, the diameter of the bottom of the pit is 6mm, and they are arranged in three rows, with 3 evenly distributed in each row, and the first row is evenly distributed 20mm away from the port of the cylinder. The distance between the centers of two adjacent rows of pits in the longitudinal direction of the cylinder is 20mm. Mark the position of the pit on the cylinder with upper and lower threads according to the pre-design, burn the steel pipe red with a liquefied gas-oxygen torch at the pit position, and then stamp it with a semicircular mold to form pits. After all the pits are made , placed to coo...

Embodiment 3

[0027]Make two integrated decentralized directional explosion cylinders: the height of the cylinder is 9cm, the outer diameter is 15mm, the wall thickness is 1.5mm, and the material is #45 steel. One end of the cylinder is processed with external threads, and the other end is processed with internal threads of the same specification. There are 8 conical pits on the design cylinder, the cone apex angle is 80°, the length of the busbar in the pit is 4.5mm, and it is divided into two rows, 4 evenly distributed, and the first row is evenly distributed from the cylinder Body port 30mm. The distance between the centers of two adjacent rows of pits in the longitudinal direction of the cylinder is 30mm. Mark the position of the pit on the cylinder with upper and lower threads according to the pre-design, burn the steel pipe red with a liquefied gas-oxygen torch at the position of the pit, and then stamp it with a conical die with an apex angle of 80° to form a pit. After the pits are...

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Abstract

The invention relates to the field of ammunition manufacturing and engineering blasting. An integrated scattering type oriented explosion cylinder is composed of a cylinder body, an end cover and an ignition device, wherein a cavity of the cylinder body is filled with explosives, and the ignition device is led out of a hole in the end cover. Conical or semicircular pits which are formed in rows and in lines and distributed in a regular or irregular mode are formed in the outer circumferential face of the tubular cylinder body, wherein the central axes of the pits are perpendicular to the longitudinal axis of the tubular cylinder body, the distance, along the longitudinal axis of the cylinder body, between the central axes of every two adjacent pits ranges from 1 cm to 50 cm, and protrusions in the corresponding shapes are formed in the inner wall face of the cylinder body through the pits. The cone vertex angle of the conical pits ranges from 30 degrees to 160 degrees, the length of the generatrix of the conical pits ranges from 0.5 cm to 20 cm, and the diameter of the bottom face of the conical pits is 2 to 50 times of the thickness of the wall of the cylinder body. The radius of the semicircular pits is 2 to 50 times of the thickness of the wall of the cylinder body. After the explosives are blasted, high-temperature and high-pressure detonation waves act on the pits, and high-speed jet flow is formed through extrusion drive. The integrated scattering type oriented explosion cylinder is simple in manufacturing process, low in cost and capable of being applied to the tunnel cutting blasting occasion, the presplitting blasting occasion and other occasions.

Description

technical field [0001] The invention relates to the technical fields of ammunition manufacturing and engineering blasting. Background technique [0002] The shaped-energy jet cutter applies the shaped-energy jet technology to the field of cutting engineering. It drives the material to form a jet through the explosive detonation, converts the internal energy of the explosive into the kinetic energy of the shaped-energy jet, and uses the high penetration performance of the shaped-energy jet to cut off the traditional Objects that are inconvenient to cut out by the craft. Concentrated energy cutters are widely used in various industries because of their low cost and simple operation. In the prior art, focused point jet and line jet technologies have been applied to underground engineering. For example, CN2244091 Y proposes a kind of energy-concentrating cutter for downhole cutting, which includes a cutting cylinder shell, an annular medicine cover, explosives and a detachable...

Claims

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Application Information

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IPC IPC(8): F42D1/00F42D3/00
Inventor 马宏昊王德宝沈兆武范志强
Owner UNIV OF SCI & TECH OF CHINA
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