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Determination system for friction sensitivity of energetic material

A technology of friction sensitivity and measurement system, which is applied in the direction of analyzing materials, material inspection products, measuring devices, etc., can solve the problems of poor stability of pressurized parts, affecting test accuracy, and incompletely accurate test results, so as to reduce the impact and ensure The effect of precision

Pending Publication Date: 2022-06-28
绵阳市奥派科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under the existing technical conditions, the BAM friction sensitivity meter is usually used for testing. The BAM friction sensitivity meter applies a constant pressure to the test material in the form of a lever. Due to the flexible connection of the pressurized parts, the stability of the pressurized parts themselves is poor, and it is difficult to ensure The test material is subjected to constant pressure during the test, especially when the test material is subjected to impact force, resulting in incompletely accurate test results
The structure that exerts impact force on the test material is connected to the motor, and the vibration and force direction of the motor will also affect the accuracy of the test

Method used

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  • Determination system for friction sensitivity of energetic material
  • Determination system for friction sensitivity of energetic material
  • Determination system for friction sensitivity of energetic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] like figure 1 As shown, in this embodiment, a measurement system for friction sensitivity of energetic materials includes a frame 1, a test structure 3 arranged on the frame 1 and capable of clamping the test piece 5, a test structure 3 arranged above the test structure 3 and used for For the striking structure 4 that applies striking force to the test piece 5 , the test structure 3 is slidably provided with a striker 322 that can be aligned with the test piece 5 and is drive-connected to the striking structure 4 .

[0031] When the test piece 5 needs to be tested, the test piece 5 is clamped by the test mechanism 3, so that the test piece 5 is subjected to a constant pressure, and a striking force is applied to the striker 322 through the striking structure 4, so that the striker 322 hits the test piece 5. , the sliding friction occurs between the test piece 5 and the test mechanism 3 , and the explosion probability of the test piece 5 is observed to characterize the f...

Embodiment 2

[0035] like figure 2 , image 3 , Figure 4 , Figure 5 As shown, on the basis of the above embodiment, in this embodiment, the test structure 3 includes an instrument body 312 arranged in the rack 1 and having a through hole, an upper top post 35 arranged at one end of the through hole, and The punch 317 is slidably arranged at the other end of the through hole and can clamp the test piece 5 with the upper top column 35. The side surface of the instrument body 312 is provided with an opening communicating with the through hole, and the draw rod 322 is aligned with the instrument body 312. The opening of the frame 1 is provided with a driving structure 2 for driving the punch 317 to move.

[0036] The test piece 5 is clamped by the upper top column 35 and the punch 317 to keep the test piece 5 fixed during the test. The instrument body 312 can relatively isolate the test piece 5 from the surrounding environment, so that the test piece 5 can only enter and exit through the...

Embodiment 3

[0041] like Figure 4 , Figure 5 As shown, on the basis of the above embodiment, in this embodiment, a bracket 315 is arranged in the instrument body 312, and a stepped through hole with a small hole facing upward is arranged in the bracket 315, and one end of the punch 317 is connected to the The small holes of the stepped through holes are installed together, and the large holes of the stepped through holes are connected with a bracket nut 319 through threads. One end of the punch 317 passes through the bracket nut 319. There is a spring 316 sleeved on the punch 317 in the large hole of the .

[0042] The punch 317 can be installed in cooperation with the small hole of the stepped through hole, which can guide and limit the punch 317, control the moving direction of the punch 317, and prevent the punch 317 from moving and shaking at will and affecting the stability of the test piece 5. sex.

[0043] The bracket nut 319 can support and limit the shaft shoulder on the punc...

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Abstract

The invention discloses an energetic material friction sensitivity determination system, which comprises a rack, a test structure which is arranged on the rack and can clamp an experiment piece, and a striking structure which is arranged above the test structure and is used for applying striking force to the experiment piece, and a striking rod which can be aligned with the experiment piece and is in transmission connection with the striking structure is arranged on the testing structure in a sliding manner. The device has the beneficial effects that the striking force is applied to the experiment piece by utilizing the sliding of the striking rod, and the moving precision of the striking rod can be effectively controlled, so that the relative position precision of the striking rod and the experiment piece is ensured, and the influence on the test precision due to the deviation of the relative position of the striking rod and the experiment piece is avoided; and the influence of vibration generated by the driving structure on the experiment precision can be reduced.

Description

technical field [0001] The invention relates to the technical field of friction sensitivity testing, in particular to a system for measuring friction sensitivity of energetic materials. Background technique [0002] Sensitivity is the ability of explosive substances to undergo explosive changes under the action of external energy. Explosive substances generally refer to explosives and other chemical substances with similar properties of explosives. The minimum energy of matter to cause an explosive change is called the excitation impulse. The smaller the excitation impulse required to cause the explosive change, the more sensitive the explosive is and the greater its sensitivity. For some explosives and other energetic materials, it is necessary to test the friction sensitivity before processing and transporting them. [0003] Under the existing technical conditions, the BAM friction sensitivity tester is usually used for testing. The BAM friction sensitivity tester appli...

Claims

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Application Information

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IPC IPC(8): G01N19/00G01N33/22
CPCG01N19/00G01N33/227
Inventor 刘辉李培熊长江杨立涂欧杨张明智
Owner 绵阳市奥派科技有限公司
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