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Plastic reinforcing cap for detonating cap

A reinforced cap and plastic technology, which is applied in the field of blasting equipment manufacturing, can solve the problems of reducing the friction between the plastic reinforced cap and the inner wall of the pipe, deformation and cracking of the plastic reinforced cap, easy melting to block the fire transmission hole, etc., and achieve good resistance to environmental stress cracking Sexuality, increased safety, and less deformation

Inactive Publication Date: 2015-03-25
SICHUAN YIBIN WEILI CHEM CO LED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention aims at the problems of the above-mentioned background technology, and provides a plastic reinforced cap for a detonator, which solves the problem that the existing plastic reinforced cap is deformed and cracked under high pressure, which is easy to crack under extreme environments, and is easy to melt and block the fire transmission when the ignition agent of the delayed detonator is sprayed. hole, easy to tear and smash when exploded, and the invention can be applied to detonator shells made of various materials, which is convenient for electrostatic discharge, further reduces the friction between the plastic reinforced cap and the inner wall of the tube, and is easy to popularize and use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A plastic reinforced cap for a detonator is made of linear low-density polyethylene and added with graphite powder in an amount of 0.05% by weight of the linear low-density polyethylene.

[0041] The plastic reinforced cap has an outer diameter Φ of 6.20 mm, a length L of 6.50 mm, a diameter of the fire transmission hole Φ of 1.8 mm, and a wall thickness δ of 0.9 mm.

Embodiment 2

[0043] A plastic reinforcing cap for a detonator is made of linear low-density polyethylene, and 0.03% of graphite powder and 0.5% of pigment by weight of the linear low-density polyethylene are added.

[0044] The outer diameter Φ of the plastic reinforced cap is 6.15 mm, the length L is 6.30 mm, the diameter Φ of the fire transmission hole is 1.7 mm, and the wall thickness δ is 0.8 mm.

Embodiment 3

[0046] A plastic reinforcing cap for a detonator is made of linear low-density polyethylene, and 0.08% of the weight of the linear low-density polyethylene is added with graphite powder and 0.2% of dilauryl thiodipropionate.

[0047]The plastic reinforced cap has an outer diameter Φ of 6.20 mm, a length L of 6.50 mm, a diameter of the fire transmission hole Φ of 1.8 mm, and a wall thickness δ of 0.9 mm.

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PUM

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Abstract

The invention relates to the manufacturing field of explosive materials and providing a plastic reinforcing cap for a detonating cap. The plastic reinforcing cap is used for solving the problems that the existing plastic reinforcing cap is deformed and cracked under high pressure, easy to chap under an extreme environment and melt and block a flash hole when the eruption of the first fire composition of the detonating cap is delayed, and easy to tear and smash during explosion. The plastic reinforcing cap can be suitable for detonating cap shells made from various materials, is convenient for static electricity guiding and further reducing the frictional force between the reinforcing cap and the inner wall of the tube, and easy to popularize and use.

Description

technical field [0001] The invention relates to the field of blasting equipment manufacturing, in particular to a plastic reinforcing cap for a detonator. Background technique [0002] At present, in the production process of industrial instantaneous detonators, after the detonator is filled with the detonator, a reinforced cap with a fire hole is used to buckle the detonator along the inner wall of the metal detonator shell, and then use the punch to extend into the detonator shell. Press down on the reinforcement cap to compact the loose primer to the proper density. The reinforcing cap has the following two functions in the detonator: one is to seal the explosive contained in the detonator, prevent leakage, reduce the influence of external factors on the charge, and ensure the quality of the detonator product; the other is to prevent the explosive product on the upper layer of the detonating column from going in the opposite direction and sideways. The side dissipation s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K3/04
CPCC08K3/04C08K2201/017
Inventor 曹彭木庞彦波江宗尚
Owner SICHUAN YIBIN WEILI CHEM CO LED
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