Segmented Explosive Charge Centering in Projectile Casing
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Solution Overview
Problem
Existing methods for producing explosive charges, such as casting and pressing processes, are slow, complex, expensive, and prone to imperfections like air pockets, with limited ratios of length to diameter, making it difficult to create high-quality explosive charges for projectile casings efficiently.
Innovation Solution
The solution involves preformed explosive segments connected by a centering device with conical and cylindrical configurations, pressed in a vacuum to eliminate air pockets, and surrounded by a shrink tube for protection, allowing for customizable ratios and easy, quick, and cost-effective production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a casting process is used to produce explosive charges, then the explosive charge can be formed, but the process is slow, complex, expensive, and produces imperfections like air pockets
Solution Approach 1:
The explosive charge is divided into multiple preformed explosive segments that are connected together. Each segment can be independently pressed without air pockets, and then assembled into the final charge, eliminating casting imperfections while maintaining production efficiency
Solution Approach 2:
The explosive segments are preformed by pressing before assembly. This preliminary pressing action eliminates air pockets from each segment individually, ensuring high quality without requiring a slow and complex casting process for the entire charge
2Productivity
If a pressing process is used to produce explosive charges, then production is faster, but the ratio of length and diameter is limited
Solution Approach 1:
The explosive charge is segmented into multiple pressable units that can be connected to form various lengths and diameter ratios. This allows the pressing process to maintain its speed advantage while achieving flexible dimensional ratios through assembly of standardized segments
Solution Approach 2:
The explosive segments are designed with universal connection features that allow them to be assembled in different configurations. The same basic segment design can create charges with various length-to-diameter ratios, making the pressing process adaptable to different projectile requirements
3Adaptability or versatility
If explosive segments are connected together, then various sizes can be achieved, but centering and even distribution in the projectile casing becomes difficult
Solution Approach 1:
A centering device with centering elevations is introduced as an intermediary element between the explosive segments and the projectile casing. This device ensures precise centering and even distribution of the assembled explosive charge, regardless of the charge's size or segment configuration
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
This approach enables the production of high-quality explosive charges that can be precisely fitted into projectile casings without air pockets, ensuring even distribution and preventing unwanted ignition, while allowing for various lengths and diameters, thus enhancing the efficiency and safety of the explosive charge.
Implementation Method 1
The pressing process is preferably carried out in a vacuum. The compressed explosive segments therefore have no air pockets.
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to an explosive charge (1, 11) for inclusion in a projectile casing (22), comprising several interconnected preformed explosive segments (4a, 4b, 4c, 4d, 4e, 14a, 14b, 14c, 14d, 14e) and a centering device (7, 17, 18) arranged on the interconnected explosive segments (4a, 4b, 4c, 4d, 4e, 14a, 14b, 14c, 14d, 14e) for centering the interconnected explosive segments (4a, 4b, 4c, 4d, 4e, 14a, 14b, 14c, 14d, 14e) in the projectile casing (22).