Explosive Container Fusible Link Pressure Relief
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Solution Overview
Problem
Existing mechanisms for storing explosives, such as ammunition, often fail to ensure adequate insensitivity to external influences like fire, leading to unwanted detonation due to inadequate pressure relief and thermal management.
Innovation Solution
A container design featuring a connecting component with a fusible material that melts between 80°C and 170°C, allowing the container to open and relieve pressure without complete disassembly, preventing detonation and collateral damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the container is firmly closed with a stable closing component, then the explosive is securely contained, but the container cannot relieve pressure in case of thermal expansion or reaction
Solution Approach 1:
The fusible connecting material is pre-installed in the connecting component to create a predetermined weak point. This preliminary preparation ensures that when thermal expansion or reaction occurs, the connecting material melts at a specific temperature (80-170°C) and automatically opens the container, relieving pressure before dangerous buildup occurs.
Solution Approach 2:
The connecting material is selected with a specific melting temperature range (80-170°C) that is lower than the explosive's reaction temperature but higher than normal operating temperatures. This parameter change allows the container to remain firmly closed during normal use while automatically opening when the temperature exceeds the melting point, thus relieving pressure safely.
2Object-affected harmful factors
If ventilation holes are provided with plastic plugs, then pressure relief is possible, but the desired degree of insensitivity cannot be ensured
Solution Approach 1:
The connecting material undergoes a phase transition from solid to liquid at a specific temperature range (80-170°C). This phase change provides a reliable and predictable mechanism for opening the container under thermal stress, ensuring both pressure relief and insensitivity to normal external influences like fire, while maintaining secure containment during normal operation.
3Object-affected harmful factors
If the igniter is completely separated from the projectile body under internal pressure, then venting can take place, but the connection reliability is compromised
Solution Approach 1:
The fusible connecting material is pre-installed in the connecting component to create a predetermined weak point. This preliminary preparation ensures that when thermal expansion or reaction occurs, the connecting material melts at a specific temperature (80-170°C) and automatically opens the container, relieving pressure before dangerous buildup occurs.
Solution Approach 2:
The connecting material is selected with a specific melting temperature range (80-170°C) that is lower than the explosive's reaction temperature but higher than normal operating temperatures. This parameter change allows the container to remain firmly closed during normal use while automatically opening when the temperature exceeds the melting point, thus relieving pressure safely.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces the risk of detonation and damage by allowing pressure equalization through a controlled opening, ensuring the explosive is not dammed and can outgas safely, thus enhancing the container's insensitivity to high temperatures.
Implementation Method 1
the melting temperature of the connecting substance is in the range between 80°C and 170°C, preferably between 100°C and 150°C
Data Source
Figure 1
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Figure 4
AI summary
Container for storing an explosive substance, comprising a container (3) containing the explosive substance, the container (3) being closed by means of a releasable locking component (9), wherein the container (3) and the locking component (9) are connected to each other via a connecting component (6) comprising two component halves (12, 13) connected by means of a fusible connecting material (19) whose melting temperature is in the range between 80°C and 170°C.