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A Dynamic Calculation Method of Process Parameters of Compression and Stretching of Propellant

A technology of process parameters and calculation methods, which is applied to explosives processing equipment, production of compressed gas, explosives, etc., can solve the problem that the calculated values ​​of compression and stretching process parameters cannot be corrected in real time, cannot consider the comprehensive influence of propellant formula characteristics, and cannot perform rapid Correct the calculation and other problems to achieve the effect of applicable surface width, high precision, and good matching calculation

Active Publication Date: 2018-10-12
XIAN MODERN CHEM RES INST
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Problems solved by technology

The following problems exist in the existing calculation method of propellant compression-stretching process parameters: (1) The calculation process needs to rely on the existing test data and correct it through manual experience, and the results obtained by experienced personnel and inexperienced personnel are quite different; (2) The calculated value of the compression-stretching process parameters cannot be corrected in real time. If the pressure parameters are not suitable, the rapid correction calculation cannot be performed; (3) When the compression-stretching parameters are corrected, manual correction is required. It is carried out based on experience, and the comprehensive influence of the formula characteristics of the propellant and the current process conditions cannot be considered

Method used

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  • A Dynamic Calculation Method of Process Parameters of Compression and Stretching of Propellant

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Embodiment Construction

[0023] The specific embodiments of the present invention will be further described in detail below.

[0024] according to figure 1 , taking the three-base propellant as an example, the dynamic calculation steps of the compression-stretching process parameters of the propellant are as follows.

[0025] (1) Establish a database of the process parameters of the propellant extrusion, the discharge speed, the outer diameter, etc.;

[0026] (2) Input the formula of the propellant and the target discharge speed of 25mm / s. The formula of the propellant is as follows

[0027] NC(%)

NG(%)

RDX(%)

NGU (%)

C2(％)

TiO2(%)

32.3±2.0

26.2±1.2

27.6±1.5

12.0±1.0

1.4±0.3

0.5±0.2

[0028] After querying the database, the linear interpolation method is used to calculate the results as follows: Pc=10MPa, Vm=25mm / s

[0029] (3) Input the target drug discharge speed Vm and the corresponding propellant extrusion pressure Pc into the extruder;

[...

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Abstract

The invention discloses a dynamic calculation method of companding process parameters, which utilizes current companding data to dynamically calculate and gives proper next time point in the propellant companding process without relying on empirical data and artificial experiences. The dynamic calculation method has the advantages that by adopting a database and an interpolation algorithm, the initial values of required data are obtained according to the known related data; for any formula of a propellant, the initial companding process parameters and the matching value of propellant discharging speed are given; by adopting a correction algorithm for data of previous and next time points, the real-time measured true testing data can be utilized to correct, the proper companding process parameter values are gradually approximated, the true data of the test can be fully utilized to correct, and the accuracy is higher.

Description

technical field [0001] The invention relates to a dynamic calculation method for the compression and stretching parameters of propellants, which is suitable for real-time correction and calculation of process parameters of the compression and stretching process in the manufacture of propellant products. Background technique [0002] The preparation process of the propellant product includes absorption, water displacement, granulation, gelation, extrusion, drying, etc. The extrusion process is the forming process of the propellant, and the dimensional accuracy, compactness, and surface gloss of the propellant are all uniform. It is determined by the quality of the extrusion process, and the core of the extrusion process is the design of the extrusion process parameters. Under certain conditions of the mold, the ideal propellant product can be obtained through appropriate process parameters. Existing propellant compression and stretching process parameters mainly rely on empir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B21/00C06B25/34C06D5/06
CPCC06B21/0075C06B25/34C06D5/06
Inventor 张江波魏学涛赵颖梁磊刘毅肖霞严文荣闫光虎赵煜华周媛丽
Owner XIAN MODERN CHEM RES INST
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