CN1421674A

CN1421674A - Timing fuse for fireworks bomb and its making process

Info

Publication number: CN1421674A
Application number: CN 01131565
Authority: CN
Inventors: 刘必坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-24
Filing date: 2001-11-24
Publication date: 2003-06-04
Anticipated expiration: 2021-11-24
Also published as: CN100335859C

Abstract

Potassium chlorate, barium nitrate, charcoal powder, light calcium carbonate and other material in certain proportion are powdered, mixed, wound with paper material to form circular stripe, and the circular stripe is soaking in adhesive solution and moistureproof treated to obtain the timing fuse for fireworks bomb. Timing fuse thus produced has high ignition rate, stable burning speed, accurate timing, good delay effect and other advantages.

Description

Timing fuse for fireworks bomb and preparation method thereof

The invention belongs to the lead-in wire that catches fire of fireworks and firecrackers, particularly a kind of make display shell in the lift-off process can according to the lift-off of setting highly aloft time fire set off timing fuse for fireworks bomb of fireworks display and preparation method thereof.

Original timing fuse for fireworks bomb is that the fuse cord of using always is made, it is to adopt potassium nitrate as oxidant that this fuse cord regularly draws, because potassium nitrate is the endothermic reaction in ignition process, exist because of the not fire-hazardous problem of fuse cord burning-point height, the operation element that the timing of display shell is seted off has increased difficulty.Because the burning-point of fuse cord is higher relatively, it is slower to catch fire, the problem that occurs when setting off fireworks display is many: if any the display shell lift-off time also do not reach setting the lift-off height just seted off in advance, the display shell that the has not timing of going up to the air after the setting height is seted off, but when falling, just set off, the display shell unexpected again quick-fried sound when dropping to soon near ground that also has is seted off, even there is the minority duds to drop on the ground or the like, so, not only influenced the appreciation effect of setting off of display shell, and very dangerous, the incident of hurting sb.'s feelings happens occasionally.The cost of fuse cord is higher in addition, has improved the cost of firework product accordingly, is unfavorable for the marketing.In order more effectively to enlarge the appreciation effect of setting off of display shell and various fireworks, improve the quality of products, reduce production costs, industry scientific research personnel concentrates on notice on the lead-in wire that catches fire, and works hard on the raising lead-in wire catches fire rate.Many people are thinking hard, and try every possible means, and the display shell that expects to have super quality and competitive price regularly catches fire to go between and comes out early, serves the fireworks and firecrackers production industry, increases extraordinary splendor when setting off fireworks display for people in the celebrating date, increases joy.

The objective of the invention is to the problem that the lead-in wire that catches fire at above-mentioned fireworks and firecrackers exists, and a kind of new fireworks display of development catch fire lead-in wire, i.e. timing fuse for fireworks bomb and preparation method thereof.

The method that the present invention finishes is that employing potassium chlorate or potassium hyperchlorate are main body, and as oxidant, combustible is dispersant based on charcoal powder with the precipitated calcium carbonate to assistant with materials such as barium nitrates.Above-mentioned raw-material amount ranges is respectively: potassium chlorate or potassium hyperchlorate are 25～52%, and barium nitrate is 8～22%, and charcoal powder is 13～35%, and precipitated calcium carbonate is 10～30%.The concrete method of regularly drawing of making is above-mentioned raw material in proportion after the weighing, become powder respectively, mix, make with brown paper or special-purpose lead-in wire coated abrasive roll and draw base, after putting into binder solution and soaking, handle through protection against the tide, promptly get and draw core and regularly draw for the bar shaped of whole circle.The use length of regularly drawing will be decided according to the length of size, firing altitude and the time for lift off of display shell.The volume of display shell is big, emission is high, the time for lift off is long, and the timing of use is drawn must be longer.In general, regularly the external diameter that draws uses length about 3 centimetres in 5 millimeter.

Advantage of the present invention is: selection is simple, and raw material are easily purchased, and manufacture craft is uncomplicated, need not big equipment investment; Product price is not high, compares with original similar lead-in wire, and cost will descend 60%; Characteristics such as be used as timing fuse for fireworks bomb, have the rate of catching fire height, combustion speed is stable, and is regularly accurate, and delayed effect is good, and is easy to use; Produce and use, safe and reliable; Demand is big, and market prospects are wide, can produce good economic benefits and social benefit.

Embodiments of the invention one: get potassium chlorate 35%, barium nitrate 20%, charcoal powder 20%, precipitated calcium carbonate 25% becomes powder respectively, mixes, roll into round bar shaped with brown paper and draw base, after putting into the poly-vinyl alcohol solution immersion, carry out protection against the tide and handle, promptly get the core that draws of the present invention and be whole circle bar shaped timing induced labor product.

Embodiments of the invention two: get potassium chlorate 52%, barium nitrate 8%, charcoal powder 30%, precipitated calcium carbonate 10% becomes powder respectively, after mixing, make round bar shaped with the lead-in wire coated abrasive roll and draw base, after putting into the poly-vinyl alcohol solution immersion, carry out protection against the tide and handle, promptly get the core that draws of the present invention and be whole circle bar shaped timing induced labor product.

Embodiments of the invention three: get potassium hyperchlorate 35%, barium nitrate 22%, charcoal powder 13%, precipitated calcium carbonate 30% becomes powder respectively, mixes, make round bar shaped with the lead-in wire coated abrasive roll and draw base, after putting into the phenol resin solution immersion, carry out protection against the tide and handle, promptly get the core that draws of the present invention and regularly draw for the bar shaped of whole circle.

Embodiments of the invention four: get potassium hyperchlorate 45%, barium nitrate 8%, charcoal powder 35%, precipitated calcium carbonate 12%, become powder respectively, mix, make round bar shaped with the lead-in wire coated abrasive roll and draw base, after in shellac solution, soaking, carry out protection against the tide and handle, just must draw core and regularly draw for the bar shaped of whole circle.

Embodiments of the invention five: get potassium chlorate and potassium hyperchlorate each 25%, barium nitrate 18%, charcoal powder 20%, precipitated calcium carbonate 12%, Cheng Fenhou mixes, with brown paper or lead-in wire sand paper or make round bar shaped with the higher paper roll of other intensity and draw base, put into the gelatin solution immersion after, carry out protection against the tide again and handle, it is exactly timing fuse for fireworks bomb product of the present invention that the appearance of gained has the round strip solid of paper wrapper.

The timing fuse for fireworks bomb that the present invention makes is the solid of circle strip, and periphery is a paper wrapper, and inner for drawing core, paper wrapper is generally brown paper, lead-in wire sand paper and the higher stationery of other intensity.The adhesive that base is drawn in immersion can be respectively poly-vinyl alcohol solution, phenol resin solution, shellac or gelatin solution etc.Regularly the external diameter that draws draws core diameter and is generally 4.5 millimeter generally in 5 millimeter.

Facts have proved: be diameter that 232 millimeters salvo is emitted to 420 meters height and regularly sets off, in time for lift off in about 5.5 seconds, it is 3.4 centimetres that length is drawn in the timing of use.Be diameter that 152 millimeters salvo is emitted to 300 meters height and regularly sets off, in time for lift off in about 5 seconds, it is 3 centimetres that length is drawn in the timing of use.Be diameter that 116 millimeters salvo is emitted to 200 meters height and regularly sets off, in time for lift off in about 4.5 seconds, the length that the timing of use is drawn is 2.5 centimetres.

Claims

1, a kind of timing fuse for fireworks bomb, it is characterized in that drawing by the timing that core forms of drawing in paper wrapper and the foreskin, it draws core and is made up of materials such as potassium chlorate or potassium hyperchlorate, barium nitrate, charcoal powder, precipitated calcium carbonates, the amount ranges of each composition is respectively: potassium chlorate or potassium hyperchlorate are 25～52%, barium nitrate is 8～22%, this powdered carbon is 13～35%, and precipitated calcium carbonate is 10～30%.

2, a kind of preparation method of timing fuse for fireworks bomb, it is characterized in that each composition by the prescription weighing, become powder, mix, roll into round bar shaped with paper material and draw base, after putting into binder solution and soaking, carry out protection against the tide and handle, promptly get regularly induced labor product of whole round bar shaped.