Method for testing pressure during heating process of explosive and propellant columns

Abstract

The invention discloses a method for testing the pressure during the heating process of explosive and propellant columns. The method comprises the following steps: placing a simulated cook-off bomb equipped with the explosive and propellant columns in an anti-explosion heating box, testing the pressure in the simulated cook-off bomb, and arranging a temperature sensor in the anti-explosion heating box to monitor and regulate and control the temperature variation in the anti-explosion heating box during the test process; hermetically connecting an upper end cover of the simulated cook-off bomb to a pressure sensor through a guide pipe, and mounting the pressure sensor outside the anti-explosion heating box; respectively connecting the temperature sensor and the pressure sensor to a corresponding temperature instrument and a corresponding pressure instrument, and connecting the temperature sensor and the pressure sensor to a computer. The method is suitable for testing the pressure during the heating process of various explosive and propellant columns, the variable curve of the pressure along with time during the heating process is recorded, the pressure value in the simulated cook-off bomb when the explosive and propellant columns are subjected to heat explosion is determined, and the severe degree of explosion when the explosive and propellant columns explode under the heat stimulus action can be assessed.

Description

technical field [0001] The invention belongs to the technical field of propellants and explosives, and in particular relates to a pressure test method for the heating process of propellant and explosive powder columns. Assess severity. Background technique [0002] Gunpowder is an important energy source for the propulsion of weapon systems, and explosives are the basic energy source for weapon warhead damage. The thermal safety of explosives and other energetic materials directly determines the thermal safety of weapon systems. The thermal safety assessment of propellant charge can be determined and theoretically speculated by thermal explosion theory test. Due to the high requirements of the thermal explosion test site and the difficulty in processing the test device, the accuracy of temperature control and temperature measurement during the test is affected by many factors and has certain risks. The thermal explosion test always lags behind its theoretical research. How...

AI Technical Summary

Problems solved by technology

However, currently commonly used pressure sensors are basically required to be used at room temperature or instantaneous high temperature, which cannot meet the requirements of long-term work at high temperature in thermal explosion tests.

Images