Gas generator
A technology of gas generator and gas generating agent, which is applied in the generation of compressed gas, ammonium perchlorate composition, attack equipment, etc., and can solve the problems of filter power loss, large size and weight of gas generator, and failure of gas generator and other issues to achieve the effect of avoiding impact and failure, improving filtration efficiency and reducing output slope
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[0091] The preparation method of the gas generant composition of the present invention can be prepared by wet granulation, spray granulation or dry granulation. Among them, spray granulation or dry granulation can adopt the traditional granulation process.
[0092] Wherein the specific preparation method of wet granulation comprises the following steps:
[0093] (1) Mix guanidine nitrate, basic copper nitrate, strontium nitrate, ammonium perchlorate and slagging agent to obtain the first material; mix in the mixing equipment, mixing time ≥ 5min; the mixing equipment can be V-type mixing machine, three-dimensional multi-directional motion mixer, automatic lifting hopper mixer, vibrating mill, ribbon mixer or acoustic resonance mixer.
[0094] (2) Add water to the first material and carry out wet mixing to obtain the second material. The wet mixing time is 20min to 60min; the amount of water added is 8% to 15% of the total mass of the first material; distilled water is preferab...
Embodiment 1
[0120] The gas generant composition comprises the following components in mass percent:
[0122] Basic copper nitrate 42.75%
[0123] Strontium nitrate 8%
[0124] Ammonium perchlorate 3%
[0126] Talc 0.75%
[0127] After these components are weighed, they are compressed into discs with a diameter of 5mm and a thickness of 1.9mm by wet granulation and rotary tablet press. The specific preparation method is: guanidine nitrate, basic copper nitrate, strontium nitrate, ammonium perchlorate Mix the first material with barium zirconate through a mixing device; add 15% distilled water to the first material and carry out wet kneading for 60 minutes to obtain the second material; pass the second material through a 40-mesh screen to obtain the third material; The third material is dried until the water content is less than 0.5% of the total mass of the third material, and the fourth material is obtained through a 40-me...
Embodiment 2
[0144] The gas generant composition comprises the following components in mass percent:
[0146] Basic copper nitrate 41.5%
[0147] Strontium nitrate 1.5%
[0148] Ammonium perchlorate 2%
[0150] Talc 1%
[0151] After these components are weighed, they are compressed into discs with a diameter of 5 mm and a thickness of 1.9 mm by wet granulation and rotary tablet press. The specific preparation method is: guanidine nitrate, basic copper nitrate, strontium nitrate, ammonium perchlorate Mix with strontium zirconate and talcum powder to obtain the first material; add 10% distilled water to the first material and carry out wet kneading for 50 minutes to obtain the second material, and pass the second material through a 35-mesh screen to obtain the third material ; The third material is dried until the water content is less than 0.5% of the total mass of the third material, and the fourth material is obtained by...
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