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Anti-sintering treatment method of heavy metal particles

A treatment method and technology for heavy metals, applied in metal processing equipment, attack equipment, transportation and packaging, etc., can solve the problems of dispersant exudation, influence, and the inability to ensure uniform mixing of heavy metal particles and dispersants, so as to avoid sintering. group, the effect of controlling the damage area

Active Publication Date: 2020-12-08
ZHONGBEI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, this document does not disclose the specific composition of the dispersant, and at the same time, based on the flow characteristics of the liquid, it cannot guarantee that the heavy metal particles in the charge and the dispersant are always uniformly mixed
For example, in ammunition that has been stored for a long time, the dispersant may seep out, affecting the proper functioning of other components in the ammunition

Method used

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  • Anti-sintering treatment method of heavy metal particles
  • Anti-sintering treatment method of heavy metal particles
  • Anti-sintering treatment method of heavy metal particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh 90g of stearic acid, heat to 80°C and stir to melt, then add 10g of sodium nitrate and stir evenly.

[0026] Weigh 350g of tungsten carbide particles with a particle size of 150-300μm, add them to the above molten mixture, keep the temperature above 70°C, stir and mix evenly, put them in a 20-mesh standard sieve, press with a rubber target, and make them pass through the sieve quickly , After cooling, anti-sintering tungsten carbide particles are obtained.

[0027] The above-mentioned anti-sintering tungsten carbide particles are placed in a forming mold, and pressurized and formed by a hydraulic press to obtain a thin-walled cylindrical ammunition insert containing tungsten carbide particles.

[0028] The above-mentioned ammunition embedded layer, high-energy explosive and carbon fiber shell are assembled into a low-collateral damage ammunition, detonated with a detonator and a booster charge, and soap with a Shore hardness of 30-40° is used as a damage element r...

Embodiment 2

[0032] Weigh 92.4g of stearic acid and 13.2g of calcium stearate, mix and stir evenly, heat to 80°C, add 4.4g of potassium nitrate and stir evenly.

[0033] Weigh 330g of nearly spherical tungsten particles with a particle size of 150-200μm, add them to the above molten mixture, keep the temperature above 70°C, stir and mix evenly, place in a 20-mesh standard sieve, press with a rubber target, and make it pass through the sieve quickly After cooling, anti-sintering tungsten particles are obtained.

[0034] The anti-sintering tungsten granules are placed in a molding die, and pressurized by a hydraulic press to obtain a thin-walled cylindrical ammunition insert containing tungsten granules.

[0035] The above-mentioned ammunition embedded layer, high-energy explosive and carbon fiber casing are assembled into a low collateral damage ammunition, detonated with a detonator and a booster charge, and soap with a Shore hardness of 50° is used as a damage element receiving target, an...

Embodiment 3

[0039] Weigh 65.1g of paraffin and 9.3g of calcium stearate, mix and stir evenly, heat to 80°C, add 13.1g of sodium nitrate and stir evenly.

[0040] Weigh 350g of tungsten carbide particles with a particle size of 150-300μm, add them to the above molten mixture, keep the temperature above 70°C, stir and mix evenly, put them in a 20-mesh standard sieve, press with a rubber target, and make them pass through the sieve quickly , After cooling, anti-sintering tungsten carbide particles are obtained.

[0041] The above-mentioned anti-sintering tungsten carbide particles are placed in a forming mold, and pressurized and formed by a hydraulic press to obtain a thin-walled cylindrical ammunition insert containing tungsten carbide particles.

[0042] The above-mentioned ammunition embedded layer, high-energy explosive and carbon fiber shell are assembled into a low-collateral damage ammunition, detonated with a detonator and a booster charge, and soap with a Shore hardness of 30-40° i...

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Abstract

The invention discloses an anti-sintering treatment method of heavy metal particles, which comprises the following steps: by using heavy metal particles as damage elements, uniformly mixing with a molten anti-sintering agent, carrying out hot sieving granulation, and cooling to obtain the anti-sintering heavy metal particles. Tthe anti-sintering agent is any one or a mixture of more of stearic acid, calcium stearate and paraffin in any proportion. The anti-sintering heavy metal particles obtained through the anti-sintering treatment method have good formability and can be conveniently pressedinto a low-attached damage ammunition embedded layer, the heavy metal particles serving as damage elements are scattered in a single particle mode within a certain distance away from an explosion center under explosive loading of explosives. A damage range of the damage element is effectively controlled.

Description

technical field [0001] The invention relates to a special preparation method of a damage element, in particular to an anti-sintering treatment method for heavy metal particles used as a damage element in ammunition with low incidental damage. Background technique [0002] In some special combat missions, such as modern urban street fighting, while accurately hitting the target, it is also necessary to control the damage within a certain range to protect nearby innocent personnel and facilities. In order to meet this tactical requirement, a new type of ammunition with low collateral damage is being developed at home and abroad. [0003] The shell of this kind of low incidental damage ammunition adopts some fiber-reinforced composite materials with low strength and does not produce fragments after the high-energy explosive explodes to replace the commonly used steel material, and a certain quality is filled between the high-energy explosive and the ammunition shell. Heavy met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00C06B21/00C06B33/04B22F1/02
CPCC06B23/009C06B21/0066C06B33/04B22F1/102
Inventor 王金英皮爱国袁俊明
Owner ZHONGBEI UNIV
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