A Design Method for the Forming Process of Flat-shaped Fused-Cast Explosives

A technology of melting and casting explosives and forming technology, which is applied in the direction of explosives processing equipment, explosives, offensive equipment, etc., can solve the problems of unsuitable micro-precision casting, unsuitable interpenetration and overlapping of interfaces, lack of description and calculation of defects in the forming process, etc., to achieve The effect of obvious advantages and wide coverage

Active Publication Date: 2021-08-20
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Chinese patent CN 201510772398.5 discloses a simulation method of alloy micro-casting forming process based on fluent software, which relates to a simulation numerical simulation method for micro-casting forming process, which is used to solve the problem that existing methods are not suitable for micro-precision casting forming process problem
However, the multiphase flow VOF model based on this invention is not suitable for describing the interpenetrating and overlapping of the interface during the melt molding process, and lacks the description and calculation of the defects in the molding process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The invention is applied to design a molding process of flat TNT melting and casting explosives.

[0028] Step A, tooling model design; use the computer-aided modeling software ANSYS DesignModeler to construct the tooling model according to the actual process abstraction; the tooling model includes sample castings, metal casting molds, metal baffles and metal heat dissipation bottom plates, and the sample castings are cuboid. The three shape parameters of width and thickness are used to construct the sample casting. The length of the sample casting is 150cm, the width is 75cm, and the thickness is 1.5cm. The ratio of the three is: length: width: thickness = 100:50:1. The metal mold surrounds the sample On the outer side of the casting, the thickness of the metal mold is 2cm; the metal baffle surrounds the outer side of the metal mold, and the thickness of the metal baffle is 1cm; At the bottom of the component, the height of the metal heat dissipation bottom plate is 3c...

Embodiment 2

[0034] Apply the present invention to design a flat RZ2 melting and casting explosive molding process.

[0035] The formula composition of RZ2 cast explosive is: TNT / Hexogen / aluminum powder=27 / 55 / 18 (mass ratio).

[0036]Step A, tooling model design; use the computer-aided modeling software ANSYS DesignModeler to construct the tooling model according to the actual process abstraction; the tooling model includes sample castings, metal casting molds, metal baffles and metal heat dissipation bottom plates, and the sample castings are cuboid. The three shape parameters of width and thickness are used to construct the sample casting. The length of the sample casting is 160cm, the width is 70cm, and the thickness is 2cm. The ratio of the three is: length: width: thickness = 80:35:1. The metal mold surrounds the sample casting The thickness of the metal mold is 3cm; the metal baffle surrounds the outer surface of the metal mold, and the height of the metal baffle is 4cm; the metal he...

Embodiment 3

[0042] Apply the present invention to design a flat RZ3 melting and casting explosive molding process.

[0043] The formula composition of RZ3 cast explosive is: 2,4-dinitroanisole / hexogen / aluminum powder / wax=31 / 56 / 11 / 2 (mass ratio).

[0044] Step A, tooling model design; use the computer-aided modeling software ANSYS DesignModeler to construct the tooling model according to the actual process abstraction; the tooling model includes sample castings, metal casting molds, metal baffles and metal heat dissipation bottom plates, and the sample castings are cuboid. The three shape parameters of width and thickness are used to construct the sample casting. The length of the sample casting is 180cm, the width is 75cm, and the thickness is 3cm. The ratio of the three is: length: width: thickness = 60:25:1. The metal mold surrounds the sample casting The thickness of the metal mold is 4cm; the metal baffle surrounds the outer surface of the metal mold, and the height of the metal baffl...

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Abstract

A molding process design method for flat-shaped fused-cast explosives, which is used for simulating the design of the casting and molding process units of flat-shaped fused-cast explosives, including: step A tooling model design; step B material parameter acquisition; step C casting process design and step D forming technological design. It is applicable to the abstract modeling and process design of the casting and molding process of flat-shaped fused-cast explosives of various sizes and specifications, with wide coverage and high flexibility.

Description

technical field [0001] The invention belongs to the field of simulating design of molding process of melting and casting explosives, and in particular relates to a design method of molding technology of flat-shaped melting and casting explosives. Background technique [0002] Cast explosives are a kind of military mixed explosives that are widely used. An outstanding advantage is that cast explosives have flexible process characteristics. The preparation process of melting and casting explosives can be compared to the casting process of molten metal. Design molds of different specifications, and use uniformly melted and cast explosives as casting parts to cast them into the molds. After molding process, semi-finished products or charge products of different shapes and styles can be obtained. [0003] In the actual production process, it is often necessary to use the method of block casting to assist charge, so as to increase charge density, shorten solidification time, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B21/00
CPCC06B21/0058
Inventor 刘瑞鹏贾宪振王永顺蒋秋黎
Owner XIAN MODERN CHEM RES INST
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