Coated priming composition-free nail-shooting ammunition pellet formula and preparation method thereof

A technology of percussion powder and ammunition tablets, which is applied in the field of nail-shooting ammunition, can solve problems such as low nitrocellulose dust content, easy moisture absorption during storage, and explosion accidents, so as to improve process safety, solve process safety problems, The effect of less dust pollution

Inactive Publication Date: 2016-02-17
LUZHOU NORTH CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to aim at the deficiencies of the prior art, to provide a nitrocellulose coating with low dust content, less dust pollution, excellent moisture-proof performance, easy operation, safe process, and no need for sieving operation. A method for preparing powder-shooting nail ammunition tablets to solve the safety problems that are prone to explosion accidents and the problem of easy moisture absorption during use and storage in the existing process of reducing the preparation process of non-firing powder nail-shooting ammunition
[0004] In order to solve the safety problems that are prone to explosion accidents and the problems of easy moisture absorption in the use process and storage process in the existing non-priming powder nailing ammunition preparation process engineering, the non-priming powder nailing ammunition tablet formula and preparation method can be through the following technology plan to achieve:

Method used

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  • Coated priming composition-free nail-shooting ammunition pellet formula and preparation method thereof
  • Coated priming composition-free nail-shooting ammunition pellet formula and preparation method thereof
  • Coated priming composition-free nail-shooting ammunition pellet formula and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Formula 1: Calculated according to the total amount of each component content of the tablet,

[0030]

[0031] (1) Raw material preparation and solution preparation: the nitrocellulose containing water with a moisture content of 20 wt % to 40 wt % is calculated as the absolute dry weight, and 99.78 kg is weighed. Dissolve 0.20wt% of the stabilizer in a total amount of 100kg, and 0.01wt% of a binder in a total amount of 100kg in one or more solvents such as ethers, alcohols, esters, and ketones. The stabilizer-bonding agent-solution, based on the total amount of 100kg, the amount of solvent used is 20wt%-80wt%. The binder includes one or both of ethyl cellulose EC and cellulose glycolate butyrate CAB.

[0032] (2) Gelling: Put the weighed nitrocellulose containing water into the gelling machine (kneader), and add the prepared stabilizer-binder-solution binder solution into the gelling machine (kneader) Medium, gelling 30min ~ 60min. Stabilizers include one or more ...

Embodiment 2

[0046] Formula 2: Calculated according to the total amount of each component content of the tablet,

[0047]

[0048]

[0049] The preparation method of coated nail-shooting ammunition tablet without percussion agent, the steps are as follows:

[0050] (1) Raw material preparation and solution preparation: the nitrocellulose with a moisture content of 20wt%-40wt% was calculated as the absolute dry weight, and 95kg was weighed. Based on the total amount of 100kg, one or more of 0.60wt% of diphenylamine DPA, I neutralizing agent and II neutralizing agent are used as stabilizers, and 0.20wt% of ethyl cellulose One or two of EC and cellulose glycolate butyrate CAB are used as binders, and one or more of ethers, alcohols, esters, and ketones are used as solvents to prepare stabilizers-bonding Agent-solution, based on a total amount of 100kg, the amount of solvent used is 20wt% to 80wt%.

[0051] (2) Gelling: Put the weighed nitrocellulose containing water into the gelling m...

Embodiment 3

[0065] Formula 3: Calculated according to the total amount of each component content of the tablet,

[0066]

[0067] The preparation method of coated nail-shooting ammunition tablet without percussion agent, the steps are as follows:

[0068] (1) Raw material preparation and solution preparation: Calculate the nitrocellulose with a water content of 20wt% to 40wt% as the absolute dry weight, and weigh 89.8kg. One or more of 0.75wt% of diphenylamine DPA, I neutralizing agent, and II neutralizing agent are used as stabilizers based on a total amount of 100kg, and 0.45wt% of ethyl cellulose EC, One or two kinds of cellulose hydroxyacetate butyrate CAB are used as a binder; based on a total of 100kg, one or more of ethers, alcohols, esters, and ketones are used as solvents to prepare diazepam Agent-binder-solution, the amount of solvent used is 20wt%-80wt%.

[0069] (2) Gelling: Put the weighed nitrocellulose containing water into the gelling machine (kneader), and add the pr...

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Abstract

The invention relates to a coated priming composition-free nail-shooting ammunition pellet formula and preparation method thereof. The coated priming composition-free nail-shooting ammunition pellet formula comprises, by weight, 89.80 to 99.78% of nitrocellulose, 0.20 to 0.75% of a stabilizing agent, 0.01 to 0.45% of a binder, 0.01 to 3.0% of a coating material, a solvent with an amount<=1.0%, and water with an amount <=5.0%. According to the preparation method, nitrocellulose containing water is taken as a base material; the nitrocellulose containing water, the solvent, the stabilizing agent, and the binder are delivered into a gelling kneading machine for gelling after a certain time of mixing; an obtained mixture is pressed into particles, the particles are dried and are subjected to moulding using a tablet machine so as to obtain pellets; and the pellets are coated with the coating material in a coating kettle, and are subjected to secondary drying. The obtained coated priming composition-free nail-shooting ammunition pellets possess excellent humidity resistance, and problems of the prior art, that drying efficiency is low, energy consumption is high, a large amount of dust is generated, combustion explosion is easily caused, and technology safety is poor, are solved.

Description

technical field [0001] The invention relates to a formulation and a preparation method of coated nail-shooting ammunition tablets without firing powder in the technical field of nail-shooting ammunition. Background technique [0002] The nail-free ammunition currently on the market, when used and stored in a natural environment, tends to reduce the firing rate and power of the product due to the moisture absorption of the tablet, and it is easy to absorb moisture during storage, use, and transportation. The firing performance is poor, resulting in low mechanical firing sensitivity and poor reliability, and the safety of the production process is poor, and combustion accidents are prone to occur. In the production process adopted, in order to obtain materials with a certain particle size, the materials need to be sieved after the materials are gelled, and the sieved materials need to be dried to a very low moisture state (below 3%) In order to be compressed into tablets. Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B25/20
Inventor 刘强江菊华李纯志赵剑春欧江阳余廷江毛长勇杨晓瑜应刚马成艳白桦
Owner LUZHOU NORTH CHEM IND
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