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A kind of preparation method of delay element for detonator

A technology of components and detonators, which is applied in the field of preparation of delay components for detonators, can solve the problems of complex process, high cost, high toxicity, etc., and achieve the effects of simplifying the production process, solving high costs and reducing dust

Active Publication Date: 2021-11-02
西安庆华民用爆破器材股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a preparation method of delay elements for detonators, which solves the problems of complex process, high cost and high toxicity in the production of existing delay elements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] A kind of preparation method of delay element for detonator of the present invention, specifically implement according to the following steps:

[0024] Step 1, preparation of non-metallic pipes: first weigh the following components according to the mass percentage: engineering plastic polyether ether ketone 83% to 87%, propyl trimethoxysilane 6% to 8%, color masterbatch 4% to 7% , 0.5% to 4% of hexenylbisstearamide, 0.3% to 0.7% of N-phenyl-α-naphthylamine or alkyl phenothiazine, and the sum of the mass percentages of the above components is 100%; then the The components are mixed evenly and loaded into a plastic extruder to prepare a non-metallic tube primary mold; finally, the non-metallic tube primary mold is heated and stretched several times and cooled to obtain a non-metallic tube;

[0025] Step 2, adding a solvent to the weighed delayed drug components and mixing to make a uniform paste-like delayed drug, and filling the drug into a non-metallic tube through a pa...

Embodiment 1

[0034] A kind of preparation method of delay element for detonator of the present invention, specifically implement according to the following steps:

[0035] Step 1, preparation of non-metallic tubes: first weigh the following components according to the mass percentage: engineering plastic polyetheretherketone 83%, propyltrimethoxysilane 8%, color masterbatch 7%, hexenyl bisstearamide 1.7% %, N-phenyl-α-naphthylamine 0.3%; then each component is mixed uniformly and loaded into a plastic extruder to prepare a non-metallic tube primary mold; finally, the non-metallic tube primary mold is heated and drawn several times After stretching and cooling, the internal diameter obtained is 1.8mm, and the external diameter is a non-metallic tube of 6.2mm;

[0036] Step 2, add the solvent n-dioctyl phthalate (DOP) to the weighed extension drug components, mix to make a uniform paste extension drug, and fill the drug into step 1 through the paste filling machine to prepare In the non-met...

Embodiment 2

[0040] A kind of preparation method of delay element for detonator of the present invention, specifically implement according to the following steps:

[0041] Step 1, preparation of non-metallic tubes: first weigh the following components according to the mass percentage: engineering plastic polyetheretherketone 85%, propyltrimethoxysilane 7%, color masterbatch 5%, hexenyl bisstearamide 2.5% %, N-phenyl-α-naphthylamine 0.5%; then each component is mixed uniformly and loaded into a plastic extruder to prepare a non-metallic tube primary mold; finally, the non-metallic tube primary mold is heated and drawn several times After stretching and cooling, the internal diameter obtained is 1.8mm, and the external diameter is a non-metallic tube of 6.2mm;

[0042] Step 2, add the solvent n-dioctyl phthalate (DOP) to the weighed extension drug components, mix to make a uniform paste extension drug, and fill the drug into step 1 through the paste filling machine to prepare In the non-met...

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Abstract

The invention discloses a preparation method of a delay element for a detonator, which is specifically implemented according to the following steps: step 1, preparing a non-metallic tube; step 2, filling the mixed delay charge into the non-metallic tube prepared in step 1 through wet charging; In the metal tube, an extension tube is obtained; in step 3, the extension tube obtained in step 2 is first dried, and then cut to obtain an extension element. The preparation method of the delay element for the detonator solves the problems of high labor intensity, complex process, low production efficiency, high manufacturing cost and serious environmental pollution in the reproduction process of the existing delay element.

Description

technical field [0001] The invention belongs to the technical field of civil blasting, and in particular relates to a preparation method of a delay element for a detonator. Background technique [0002] At present, the delay elements for domestic industrial detonators mainly include lead cable type delay elements and alloy (flange steel) tube type delay elements. [0003] The lead cable-type extension element uses a drawing machine to make the lead pipe pass through molds with different apertures, and then draw it into a three-core, five-core or single-core extension body. Although the precision is relatively high, the process is complicated, the labor intensity is high, and the product cost is high. high and heavily polluted. [0004] The metal tube-type delay element is made by multiple loading-pressing process. Although the process is simple, the delay time accuracy is poor, the production efficiency is low, and the delay drug consumption is large. [0005] The producti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42C11/06C08L61/16C08K5/5419C08K5/20C08K5/18C08K5/46
CPCC08K5/18C08K5/20C08K5/46C08K5/5419F42C11/06C08L61/16
Inventor 许勇阎巧玲胡建华刘行罗珊珊赵美燕吴超
Owner 西安庆华民用爆破器材股份有限公司