Novel delay element

Abstract

The invention relates to a novel delay element, which relates to a structure of the delay element and a powder packaging and producing process. Glue is added into delay powder so that the delay powder is made into paste which can be applied into a groove on a plastic strip, the plastic strip is adhered with another plastic strip after the paste is dried, and accordingly, the delay element body is formed. The delay powder in the delay element body is uniform in density, stable in burning and fine in delay accuracy. Lead is omitted, so that lead pollution is avoided. The novel delay element is simple in manufacturing process, low in cost, can be used for millisecond, half-second and one-second delay detonators and delay devices in fireworks, fire or cartridges.

Description

technical field [0001] The invention belongs to the field of civil detonating materials, and in particular relates to a novel structure delay body structure and a manufacturing method. The delay body can be used in industrial half-second, second and millisecond delay detonators. Background technique [0002] In engineering blasting, in order to achieve better blasting effect, facilitate the control of building collapse direction, and reduce blasting vibration, delayed blasting technology is often used. It is realized by placing a delay body between the ignition source and the primer in the detonator. The extension body is a section of gunpowder that is wrapped. The delay body can be ignited by an ignition source such as an electric ignition charge, a plastic non-electric nonel, etc. After the gunpowder in the delaying body is ignited by the ignition source, the combustion wave propagates forward along the gunpowder. When it burns to the end of the delaying body, flames are...

AI Technical Summary

Problems solved by technology

The large inner tube is equipped with a delayed charge formula, and each detonator is charged at a separate height during charging, and the consistency of the charged amount is poor; the subsequent pressing of the delayed charge is also pressed separately for each inner tube, which is difficult to ensure consistent pressure and the density of the delayed charge. Uneven, so the delay accuracy is not good

[0005] Although the lead core extension body has good extension accuracy, it consumes a lot of lead, which not only increases the production cost, but also leads to the blasting site after the blasting, thus polluting the environment

In addition, the manufacturing process of the lead core extension body is cumbersome. First, the lead pipe containing the extension medicine must be cast, and then the delay medicine is filled in it.

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