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Rubber explosive for explosion hardening

A technology of rubber explosives and explosive hardening, applied in explosives, explosives processing equipment, offensive equipment, etc., can solve the problems of poor low temperature resistance, toxic manufacturing process, and difficult molding, etc., to achieve less human injury, uniform components, and explosive performance Improved effect

Active Publication Date: 2015-02-25
SHANXI BEIHUA GUANLYU CHEM IND
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] The invention provides a rubber for explosive hardening to solve the technical problems of low adhesion to the metal surface, poor consistency, poor low temperature resistance, difficult molding, toxic manufacturing process and inability to realize large-scale production in current metal surface hardening. dynamite

Method used

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Embodiment Construction

[0013] A rubber explosive for explosive hardening, which is prepared through the following steps: (a) Add 120# solvent gasoline into the container, put the natural rubber in the gasoline, and let it stand for 24h~30h (optional 24h, 25h, 26h, 27h, 28h, 29h, 30h) to make it swell; the mass ratio of natural rubber to 120# solvent gasoline is 1:2.5~2.8 (optional 1:2.5, 1:2.6, 1:2.7, 1:2.8); ( b) Dissolve the binder in another 120# solvent gasoline. The binder is composed of polyisobutylene with a molecular weight of 3000 and polyisobutylene with a molecular weight of 200,000. The mass ratio of isobutylene and 120# solvent gasoline is 4:1:10~13 (4:1:10, 4:1:11, 4:1:12, 4:1:13 can be selected); (c) Preparation Additive mixing system: mix the natural rubber solution prepared in steps (a) and (b) with the binder solution, then add plasticizer, rubber accelerator, oxidant and mix evenly. The plasticizer is Sebi Dioctyl acid, the rubber accelerator is tetramethylthiuram disulfide, and ...

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Abstract

The invention relates to the field of explosives and in particular relates to a rubber explosive for explosion hardening. The technical problems that the consistency is low, the low-temperature resistance is low, the explosive is difficult to form, the adhesiveness with the metal surface is low, the manufacturing process is toxic, large-scale production cannot be realized and the like existing in metal surface hardening at present are solved. The rubber explosive for explosion hardening is prepared by the following steps: (a) placing rubber in gasoline, and standing for 24 hours; (b) fully dissolving an adhesive in the gasoline; (c) preparing an additive mixing system, namely mixing the rubber, the adhesive, a plasticizer, a rubber accelerator and an oxidizing agent uniformly; (d) uniformly kneading the additive mixing system and the explosive into paste; (e) repeatedly pressing the explosive paste into sheets of the needed thickness; (f) naturally airing; and (g) cutting the explosive sheets into specific shapes, thereby obtaining the rubber explosive for explosion hardening. According to the formula, the low-temperature resistance and processibility of the explosive can be improved, and the explosion hardening effect of the explosive is guaranteed.

Description

technical field [0001] The invention relates to the field of pyrotechnics, in particular to a rubber explosive for explosive hardening. Background technique [0002] Explosive processing refers to the processing technology of using explosives as energy for metal surface hardening, blank processing or welding. Explosive processing is the process of converting the chemical energy of explosives into mechanical energy. Due to the rapid process of explosive explosion, compared with conventional processing methods (such as hydraulic pressure and stamping), explosive processing has the characteristics of high pressure, high deformation speed, short processing time, and thus high power, so it is a high-efficiency processing. method. One of the typical applications of explosive machining in the field of metal surface hardening is the surface hardening pretreatment of railway frogs (high manganese steel). High manganese steel has the characteristics of high toughness, wear resistan...

Claims

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Application Information

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IPC IPC(8): C06B43/00C06B21/00C21D1/06
Inventor 谢利鹏张茂林贾宏选刘波侯会生介二林
Owner SHANXI BEIHUA GUANLYU CHEM IND
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