Heating device for low-speed cookoff of insensitive explosives

Abstract

The invention discloses a heating device for low-speed cookoff of insensitive explosives. The problems of partial heating, complicated assembly, low in usage safety, unstable heating power and uneven heating in the testing process in the prior art are solved. The heating device for low-speed cookoff of the insensitive explosive consists of a protection layer, a heating layer, a power connection column, an insulating sleeve, a heat insulating layer and an insulating layer, whole heating is adopted in the testing process, no obvious heat dissipation area exists at two ends, the testing assembly process is simple, the adopted heating layer, the adopted insulating layer, the adopted heat insulating layer and the adopted protection layer are made of a flexible material, safety is high, electric heating pieces are evenly distributed, heating powers at all positions are consistent, the electric heating pieces are embedded into a base material, whole heating is performed through the base material, and the temperature differences of points are small. The heating device for low-speed cookoff of the insensitive explosive can be used for field low-speed cookoff of the insensitive explosives and can be also used for field low-speed cookoff tests of various small-sized live ammunitions.

Description

technical field [0001] The invention belongs to the technical field of safety evaluation of propellants and explosives, and relates to a heating device for slow cook-off of insensitive explosives. Background technique [0002] During the storage, transportation and use of ammunition, there have been many catastrophic accidents caused by ammunition cook-off. Under different heating conditions, the reaction temperature and violent reaction of explosives are quite different. At present, domestic bake-off In the burning test, the heating rate is mostly 1-3°C / min, while the American military standard for insensitive ammunition (MIL-STD-2015B) stipulates that the slow cook-off test standard for ammunition is that the ammunition is in a heating environment at a rate of 3.3°C / h; NATO's STANAG 4439 standard is the test standard for insensitive ammunition. The ammunition is subjected to a slow heating temperature of 3.3°C / h until the ammunition begins to react. Cook-off test to study...

AI Technical Summary

Problems solved by technology

[0010] In order to overcome the technical deficiencies of partial heating of samples during the test process, complicated assembly process, low safety in use, poor stability of heating power, and uneven heating, the present invention provides a heating device for slow-speed cook-off of insensitive explosives.

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