Center opening type in-order split propellant powder and forming mold thereof

A technology for forming molds and propellants, which is applied in explosives, explosives processing equipment, offensive equipment, etc., can solve the problems that there are no detailed reports on the processing technology of pressing molds, and achieve adjustable and controllable energy release laws, optimized combustion performance, The effect of easy disassembly

Pending Publication Date: 2022-05-10
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Many literatures have studied and introduced its combustion performance and internal ballistic performance, but its processing technology, especially the pressure mold, has not been reported in detail

Method used

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  • Center opening type in-order split propellant powder and forming mold thereof
  • Center opening type in-order split propellant powder and forming mold thereof
  • Center opening type in-order split propellant powder and forming mold thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment adopts the mold of the above-mentioned technical solution, and the specific parameters are listed as follows.

[0039] Mold body part: the inner diameter of needle frame positioning hole 1 is 24mm, the length of shrinkage hole 2 is 5mm, the shrinkage angle is 40°, the length of forming hole 3 is 32mm, and the diameter of forming hole 3 is 7mm.

[0040] Needle frame part: the thickness of the needle frame is 5mm.

[0041] Mold needle part: The mold needle used is composed of a round needle with a diameter of 0.4mm and 6 piece needles evenly distributed along the circumference. The length of the forming rod 10 is 42mm, the width is 50% of the total arc thickness of the propellant, and the thickness is 0.2mm; the width of the positioning piece 9 exceeds the width of the forming rod by 1mm, the length is 6mm, and the thickness is 0.2mm.

[0042] Figure 5 It is the physical map of the propellant prepared under this condition. As shown in the figure, there...

Embodiment 2

[0044] This embodiment adopts the mold of the above-mentioned technical solution, and the specific parameters are listed as follows.

[0045] Mold part: the inner diameter of the positioning hole of the needle frame is 24mm, the length of the shrinkage hole is 5mm, the shrinkage angle is 50°, the length of the forming hole is 32mm, and the diameter of the forming hole is 6mm.

[0046] Needle frame part: the thickness of the needle frame is 5mm.

[0047] Mold needle part: The mold needle used is composed of a round needle with a diameter of 0.3mm and 8 piece needles evenly distributed along the circumference. The length of the forming rod is 42mm, the width is 70% of the total arc thickness of the propellant, and the thickness is 0.15mm; the width of the positioning piece exceeds the width of the forming rod by 1mm, the length is 5mm, and the thickness is 0.15mm.

Embodiment 3

[0049] This embodiment adopts the mold of the above-mentioned technical solution, and the specific parameters are listed as follows.

[0050] Mold part: Needle holder positioning hole 1 inner diameter is 24mm, shrinkage hole 2 length is 5mm, shrinkage angle is 55°, forming hole length is 32mm, forming hole diameter is 6.5mm, etc.

[0051] Mold needle part: The mold needle used is composed of a round needle with a diameter of 0.6mm and 12 piece needles evenly distributed along the circumference. The length of the forming rod 10 is 42mm, the width is 60% of the total arc thickness of the propellant, and the thickness is 0.3mm; the width of the positioning piece exceeds the width of the forming rod by 1mm, the length is 6mm, and the thickness is 0.3mm.

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Abstract

The invention belongs to the technical field of novel propellant powder preparation, and particularly relates to a center opening type in-sequence split propellant powder and a forming mold of the center opening type in-sequence split propellant powder. In order to overcome the defects in the prior art, the propellant type is optimized, the center opening structure of the propellant is designed while the ordered split area-increasing combustion structure is reserved, and the combustion performance before and after splitting is improved. A relevant medicine pressing mold is designed and processed, and the mold mainly comprises a mold body, a needle frame and a mold needle. By means of the mold, the shape and size of propellant powder can be effectively adjusted in a multi-dimensional mode, regular control over energy release of the propellant powder is achieved, good combustion gradual increasing performance is obtained, and the expected effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of novel propellant preparation, and in particular relates to a center-opening type sequentially split propellant and a forming mold thereof. Background technique [0002] Improving the combustion gradient of propellant is one of the effective means to improve the energy utilization efficiency of barrel weapons. By controlling the energy release law of the propellant, the purpose of reducing the chamber pressure and increasing the initial velocity of the projectile is achieved. In recent years, a variety of propellant structures and charge methods with high incremental combustion have emerged. [0003] Among them, the sequentially split rod-shaped propellant is a propellant with high surface increase and high packing density. Its structure is to pre-set a star-shaped dark groove inside the grain and seal the end face of the grain. The principle is that when the powder is ignited, the outer surface of the ...

Claims

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Application Information

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IPC IPC(8): C06B21/00
CPCC06B21/0033C06B21/0041
Inventor 张延康肖忠良张华君刘详谢伟董朝阳胡关礼王登坊李世影
Owner ZHONGBEI UNIV
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