Views: 0 Author: Site Editor Publish Time: 2020-11-20 Origin: Site
How does the input current of the same value at the interface of Jiefang hot bridge wire reagent in the electrothermal test of boron/potassium nitrate bridge wire initiating explosive device behave?
1. When the input current is 6A and the diameter of the bridge wire is different, the temperature curve of the bridge wire-agent interface is obtained. The smaller the diameter of the bridge wire is, the faster the temperature rises and the higher the temperature reaches in the same time.
2. When the input current is 6A and the diameter of the reagent area is different (the density of reagent is 1.67 g/cm3), the temperature curve of the bridge wire-reagent interface is obtained. In a certain range, the change of charge quantity (charge density remains unchanged) will not significantly affect the ignition time of initiating explosive device.
3. Bridge wire-reagent interface temperature curve when the input current is 6A and the natural environment temperature is different. The higher the ambient temperature is, the higher the interfacial temperature is at the same time, but it will not have a significant impact on the temperature rise characteristics of the bridge wire-agent interface.
4. When the input current is 2.5A, the temperature curve of bridge wire-agent interface is different when the convective heat transfer coefficient in natural environment is different. It can be found that heat convection and heat transfer do not significantly affect the temperature rise characteristics of bridge wire-propellant interface.
Above is the data presented by Xiaobian in the electrothermal test of boron/potassium nitrate bridge wire initiating explosive device.
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