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Brightness pearl for fireworks and its preparation method

A technology of bright beads and fireworks, which is applied in pyrotechnics, offensive equipment, explosives processing equipment, etc., can solve the problems of ineffective matching of smokeless powder and unsatisfactory use effect, and achieve obvious industrial promotion and application value, good viewing effect, and smoke Reduced effect

Inactive Publication Date: 2005-03-23
中国北方化学工业总公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the use effect is not ideal, especially when the ratio of replacing black powder exceeds 50%, most of the bright beads will burn in the spray tube when setting off, because the smokeless powder and the existing bright beads cannot be effectively matched when burning

Method used

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  • Brightness pearl for fireworks and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Bright pearl structure, composition and content

[0028] (1) Bright bead structure and core composition

[0029] Bright beads are composed of inner core and outer layer. When the inner core burns, it can provide sparks in three colors: red, green and purple. The inner core is composed of:

[0030] Red: KClO 4 SrCO 3 epoxy chip dextrin

[0031] 55% 24% 17% 4%

[0032] Green: Ba(NO 3 ) 2 Alloy powder Phenolic resin PVC KClO 4 Epoxy slice

[0033] 50% 20% 7% 7% 15% 1%

[0034] Purple: CuO KClO 4 PVC Phenolic resin Sulfur Alloy powder

[0035] 25% 45% 8% 8% 6% 8%

[0036] The outer layer is a flame retarding layer, which is formed by coating the surface of the inner core; the content of the outer layer accounts for 10% by weight in the effective medicine. The outer layer is designed for zero oxygen balance and consists of:

[0037] Potassium nitrate: 86.2%, phenolic resin: 13.8%.

[0038] 2. Preparation process and process con...

Embodiment 2

[0053]1. Bright pearl structure, composition and content

[0054] Outer layer accounts for 40% in bright pearl, and other is with embodiment one.

[0055] 2. Preparation process and process conditions

[0056] Same as Embodiment 1.

[0057] 3. The application effect of bright beads in flower spraying

[0058] Match the prepared red, green and purple beads with smokeless powder for flower spraying. Table 2 shows the charging conditions and spray discharge performance.

[0059]

Charging conditions

spout

the flame

spray

high

smoke volume

spray

time

Effective ejection

amount of pearls

GB10631-89

Requirements for spraying flowers

——

≤3 meters

——

——

——

Black powder: 11.0g

red beads # : 3.0g

green beads # : 3.0g

Purple beads # : 3.0g

end of blowing

flames ahead

<3 meters

many

...

Embodiment 3

[0065] 1. Bright pearl structure, composition and content

[0066] The formula for the outer layer is 84.2% of potassium perchlorate, 15.8% of phenolic 2123 resin, and the others are the same as in Example 1.

[0067] 2. Preparation process and process conditions

[0068] Same as Embodiment 1

[0069] 3. The application effect of bright beads in flower spraying

[0070] Match the prepared red, green and purple beads with smokeless powder for flower spraying. The charging conditions and spray discharge performance are shown in Table 3.

[0071]

Charging conditions

spout

the flame

spray

high

smoke volume

spray

time

Effective ejection

amount of pearls

GB10631-89

Requirements for spraying flowers

——

≤3 meters

——

——

——

Black powder: 11.0g

red beads # : 3.0g

green beads # : 3.0g

Purple beads # : 3.0g

end of blowin...

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Abstract

A brightening bead for fireworks is composed of outer layer and core, and is prepared through preparing the powder for outer layer, preparing core containing solvent by mixing and granulating, attaching said powder to the surface of core, and baknig. Its color may be red, green or purple.

Description

technical field [0001] The invention relates to a bright bead used in fireworks, in particular to a bright bead matched with scrap military smokeless propellant powder (hereinafter referred to as smokeless powder). [0002] The present invention also relates to a preparation method of the above bright beads. Background technique [0003] In the traditional production of spray fireworks, black powder is generally used as the spray agent. However, when black powder burns, more black smoke is generated, so it is not good for the ornamental effect of spray flowers. In order to enhance the ornamental effect of spraying flowers, and at the same time, for the resource utilization of scrapped military smokeless propellant resources, and the development of environment-friendly spraying fireworks, many domestic fireworks factories use smokeless powder with a particle size of 40-120 meshes after crushing to partially replace the original ones. Black powder used in sparkler fireworks t...

Claims

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Application Information

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IPC IPC(8): C06B21/00C06B23/00C06B31/08F42B4/00
Inventor 潘仁明耿毅敏李生有焦军来陈星
Owner 中国北方化学工业总公司
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