A design method of hot mandrel feeding process for melting and casting explosive charges with large length-to-diameter ratio

A technique for melting and casting explosives and process design, which is applied in design optimization/simulation, ammunition, offensive equipment, etc. It can solve problems such as low control level of the operation process, insufficient design of casting process parameters, lack of feeding process design, etc., and achieve reduction in process The number of experiments, the improvement of process design level, and the effect of being easy to connect with practice

Active Publication Date: 2021-11-23
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technical solution used in this invention only improves the mold, the design of the casting process parameters is not perfect, lacks the design of the feeding process, the control level of the operation process is low, and it cannot be extended to the field of pouring and feeding of melting and casting explosive charges.
[0005] At present, for the charge structure of fused-cast explosives in projectiles with large length-to-diameter ratio, the process control level mostly depends on on-site experience, and there is still a lack of inventive methods for designing the hot mandrel feeding process from the perspective of process design

Method used

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  • A design method of hot mandrel feeding process for melting and casting explosive charges with large length-to-diameter ratio

Examples

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Effect test

Embodiment 1

[0030] This example is designed for a replenishment process of a molten-cast explosive thermal core rod for 2,4,6-trinitamoltoltome as a main carrier.

[0031] Formulation quality parts: 30 parts of 2, 4, 6-trinitr group, 70 copies of Oako, referred to as Tol-1 explosives.

[0032] According to the machining drawings, three components of the large long diameter are compared with the body, the molten cast explosive moisture structure and the heat core rod, and the long diameter is 5: 1, the type of molten explosive material is TOL-1 explosives, the material of the heat core bar is pure copper. Open three parts of the three parts in the process design software, trimming and assembling three components, forming a spaceless geometry of no overlapping, non-cross-sided mesh, grid division of space geometric models, making all nets The Jacobian value of the grid is not less than 0.75 to form a robust computational model. On this basis, continue to perform casting process design and therm...

Embodiment 2

[0041] This example is designed for a replenishment process of a molten-cast explosive thermal core rod for 2,4,6-trinitamoltoltome as a main carrier.

[0042] The formulation of the molten cast explosive charge is the same as in Example 1.

[0043] According to the machining drawings, it is molded and designed for three components of the large long diameter than the body, the molten cast explosive, the thermal core rod, and the long diameter is 8: 1, the type of molten casting explosive material is TOL-1 explosives, the material of the heat core bar is pure copper. Open three parts of the three parts in the process design software, trimming and assembling three components, forming a spaceless geometry of no overlapping, non-cross-sided mesh, grid division of space geometric models, making all nets The Jacobian value of the grid is not less than 0.75 to form a robust computational model. On this basis, continue to perform casting process design and thermal core rod suppression tec...

Embodiment 3

[0052] This example is designed for a replenishment process of a molten-cast explosive thermal core rod for 2,4,6-trinitamoltoltome as a main carrier.

[0053] Formulation mass fraction: 30 parts of 2, 4, 6-trinitamine, 50 parts of Black Sake, 16 parts of fine aluminum powder, 4 parts of microcrystalline wax, referred to as THL-2 explosives.

[0054] According to the machining drawings, it is molded and designed for three components of the large long diameter than the body, the molten cast explosive, the thermal core rod, and the long diameter is 8: 1, the type of molten casting explosive material is THL-2 explosives, the material of the thermal core rod is a high thermal conductivity aluminum alloy. Open three parts of the three parts in the process design software, trimming and assembling three components, forming a spaceless geometry of no overlapping, non-cross-sided mesh, grid division of space geometric models, making all nets The Jacobian value of the grid is not less than ...

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Abstract

A process design method for hot mandrel feeding process of large length-to-diameter ratio melting and casting explosive charge, including three parts: large length-to-diameter ratio projectile body, melting and casting explosive charge structure and hot mandrel. The process design method includes casting process design and hot core The rod feeding process design is two steps, the casting process design is divided into three stages, and the process parameters such as casting speed, casting temperature and casting time are designed and controlled; the hot mandrel feeding process is divided into three stages, and the hot mandrel feeding process is divided into three stages. Feed position and soak time are controlled by design. The invention can carry out process simulation design aiming at different casting and thermal mandrel feeding working conditions of melting and casting explosives with large length-to-diameter ratio, and has strong pertinence and convenient operation.

Description

Technical field [0001] The present invention belongs to the casting process of the molten cast explosives and the design of the solidification process design, and it is specifically involved in a large-scale diameter ratio of molten casting explosives. Background technique [0002] Melting casting explosives is a kind of pharmaceutical product that is widely filling in various weapons ammunition and combat. Conventional molten casting explosives are often equipped with all kinds of artillery, grenades, forces and aviation, large-scale fabrics, with high production efficiency, and high production efficiency. The shape of these weapons tend to have a large long diameter ratio. The solid phase mounted density after the molten cast explosive is higher than the liquid phase density in the melting state, and it is easy to generate a reduced pendulum defect due to volume contraction when solidification. In addition, the quality of the product product product is reduced, affecting the sa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
CPCF42B33/00F42B33/02
Inventor 刘瑞鹏贾宪振王永顺蒋秋黎
Owner XIAN MODERN CHEM RES INST
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