Copper core fuse for fireworks and preparation method of cooper core fuse

Abstract

The invention discloses a copper core fuse for fireworks and a preparation method of the copper core fuse. The copper core fuse comprises a copper core, a plurality of cotton yarns and self-made moisture-proof fuse powder, wherein the copper core fuse is produced and formed by adopting a wet method, the plurality of cotton yarns are bonded, arranged and connected into a whole through the self-made moisture-proof fuse powder and are wound around and wraps a structure along the copper core, and the diameter of the formed product is 1.6-3mm. The preparation method comprises the production steps of mixing and grinding raw material power, preparing a special fuse moisture-proof agent, preparing the special moisture-proof fuse powder, and processing the formed copper core fuse. According to the copper core fuse, the copper core is resistant to oxidation and static electricity and good in stability, the copper core is good in flexibility, small in allowed bending radius, convenient to wind and bend, free of breakage after repeated bending and good in stretching strength, when the copper core fuse is used for being connected with N firework products in series, the copper core fuse can be fixed in a twisted mode, the copper core cannot be broken, and the copper core cannot be broken to wrap the fuse powder, so that potential safety hazards caused by the problems of poor bending resistance, fuse scattering, powder leakage, firing interruption and the like caused by repeated bending in the prior art are solved.

Description

technical field [0001] The invention relates to a copper core lead wire for fireworks and a preparation method thereof, belonging to the technical field of lead wire processing. Background technique [0002] In the prior art, safety wires are made of pyrotechnic powder as the drug core, wrapped with tissue paper, woven into an outer weaving layer, and a varnish coating is arranged outside the outer weaving layer, and a film layer is coated on the varnish coating, or The lead body is covered with a waterproof film tube, or the outer layer is a thin tube composed of plasticized double-base gunpowder to form a lead. When the firework paper tube is connected, it will squeeze the lead paper and the paint attached to the outside, which will reduce the strength of the lead wire and affect the reliability of the lead wire inserted into the paper tube. It also has poor folding resistance, and loose lines and drug leakage will occur after repeated folding. , fire breakage and other p...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, safety wires are made of pyrotechnic powder as the drug core, wrapped with tissue paper, woven into an outer weaving layer, and a varnish coating is arranged outside the outer weaving layer, and a film layer is coated on the varnish coating, or The lead body is covered with a waterproof film tube, or the outer layer is a thin tube composed of plasticized double-base gunpowder to form a lead. When the firework paper tube is connected, it will squeeze the lead paper and the paint attached to the outside, which will reduce the strength of the lead wire and affect the reliability of the lead wire inserted into the paper tube. It also has poor folding resistance, and loose lines and drug leakage will occur after repeated folding. , fire breakage and other phenomena; 2. The use of plasticized double-base gunpowder to form a lead wire composed of a thin tube will squeeze the granular gunpowder in the lead wire, affect the change of the internal structure of the lead wire, and compress the medicine in the lead wire , changed some of the original characteristic factors of the lead wire, and affected the effect of the lead wire discharge, especially for some timing lead wires, crushing the granular gunpowder inside the lead wire will change the burning time of the lead wire and thus lose the timing effect, directly affecting the timing discharge effect, may cause safety accidents, and there are potential safety hazards

3. The varnish coating on the surface of the lead wire is easily dissolved by organic solvents, which makes the cotton thread wrapping the gunpowder loose until the powder leaks and causes fire failure, which is not conducive to safe discharge, storage and transportation

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