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A kind of explosive hardening explosive and preparation method thereof

A technology of explosive hardening and explosives, which is applied in the direction of explosive processing equipment, explosives, nitrated acyclic/alicyclic/heterocyclic amine explosive compositions, etc. It can solve the problems of poor explosive hardening effect, poor sticking property, and poor plasticity, etc. problems, to achieve the effect of good application performance, guaranteed hardening effect, and uniform hardness

Active Publication Date: 2018-05-22
HAIDENG TECH SERVICES DALIAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor plasticity of this explosive at low temperature, it becomes brittle and easy to crack, the viscosity decreases, the sticking property is not good, and the explosive hardening effect is relatively poor, so it cannot be used in colder places.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An explosive hardening explosive comprises the following raw materials in parts by weight: 40 g of RDX, 30 g of acetyl tributyl citrate, and 30 g of nitrocellulose.

[0030] The preparation method of above-mentioned explosive hardening explosive, comprises the following steps:

[0031] (1) Mix and stir each raw material in a mixing tank with a working temperature of 50° C. and a stirring speed of 200 r / min for 1 hour to make a mixed medicine;

[0032] (2) The mixed drug is made into a sheet with a thickness of 2.5 mm by a tablet machine with an operating temperature of 35° C. to obtain the explosive hardening explosive.

Embodiment 2

[0034] An explosive hardening explosive comprises the following raw materials in parts by weight: 60 g of Taian, 20 g of acetyl tributyl citrate, 20 g of nitrocellulose, and 0.1 g of dibutyl sebacate.

[0035] The preparation method of above-mentioned explosive hardening explosive, comprises the following steps:

[0036] (1) Mix and stir each raw material in a mixing tank with a working temperature of 70°C and a stirring speed of 250r / min for 1 hour to make a mixed medicine;

[0037] (2) The mixture is made into a sheet with a thickness of 3 mm by a tablet machine with an operating temperature of 40° C. to obtain the explosive hardening explosive.

Embodiment 3

[0039] An explosive hardening explosive comprises the following raw materials in parts by weight: 80g of RDX and Taian, 10g of acetyl tributyl citrate, 10g of nitrocellulose, and 0.3g of dibutyl sebacate.

[0040] The preparation method of above-mentioned explosive hardening explosive, comprises the following steps:

[0041] (1) Mix and stir each raw material in a mixing tank with a working temperature of 90°C and a stirring speed of 300r / min for 2 hours to make a mixed medicine;

[0042] (2) The mixture is made into a sheet with a thickness of 4.5mm by a tablet machine with an operating temperature of 45° C. to obtain the explosive hardening explosive.

[0043] The surface hardness of the high manganese steel workpiece processed by the explosive hardening explosive of the present invention can be improved to 310HBW-390HBW by 170HBW-230HBW before processing, thus it can be seen that the surface hardness of the high manganese steel workpiece processed by the explosive hardening e...

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Abstract

GMG explosion hardening explosive relates to the technical field of explosives, and in particular relates to a special explosive for high-manganese steel pieces explosion hardening treatment. The invention mainly addresses the problem that the effect of a mechanical method for high manganese steel piece hardening is not ideal. The GMG explosion hardening explosive comprises, by weight, 40-80% of a main explosive cyclonite, 10-30% of a high-molecular material and 10-30% of a plasticizer. The high-molecular material is a collodion; the plasticizer is acetyl tributyl citrate; the plasticizer is triacetin; the plasticizer is tributyl acetyl citrate and triglyceride triacetate in the weight ratio of 1:1. A density additive accounts for 0.1% of the total weight of cyclonite and the high-molecular material. The explosive has the advantage of good hardening effect on high-manganese steel pieces after explosion.

Description

technical field [0001] The invention relates to the technical field of explosives, in particular to an explosive hardening explosive used in explosive hardening treatment of high manganese steel parts and a preparation method thereof. Background technique [0002] In order to improve the surface hardness of high-manganese steel parts and enhance their wear resistance, etc., the surface needs to be hardened. At present, mechanical methods or explosive hardening methods are often used to harden high-manganese steel parts. However, mechanical methods are inefficient and harden The effect is not ideal. [0003] Explosion hardening refers to the plastic deformation or structural change of the high manganese steel workpiece under the action of the explosion shock wave generated by the explosive explosion, which causes the hardness of the surface and deep layers of the workpiece to increase, and the grain dislocation of the workpiece increases under the action of the shock wave, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B25/34C06B25/32C06B23/00C06B21/00C21D10/00
CPCC06B21/00C06B23/009C06B25/32C06B25/34C21D10/00
Inventor 约翰·劳伦斯·多诺芬吴桂华
Owner HAIDENG TECH SERVICES DALIAN CO LTD
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