The pyrotechnic agent needle sensitivity tester is a specialized equipment used to determine the sensitivity characteristics of pyrotechnic agents under mechanical needle puncture. Its core function is to evaluate the ignition probability or critical energy of drugs under specific conditions by simulating needle impact, providing quantitative data support for the safety design, quality control, and performance optimization of pyrotechnic devices. This equipment is a key tool in the research and development, production, and quality inspection processes of the pyrotechnic industry, and is of great significance in ensuring the safety of JUN's industrial and civilian blasting and energetic materials fields.

1、 Principle

Acupuncture stimulation simulation

The equipment uses a precision controlled mechanical device to insert standardized steel needles into the drug sample at a constant speed or energy. The error range of acupuncture force can be controlled within ± 0.1N to ensure high consistency of testing conditions.

Fire detection and data collection

Observe and record whether the medication undergoes combustion, explosion, or decomposition reactions due to acupuncture. Equipped with high-sensitivity pressure sensors and high-speed data acquisition cards, real-time recording of force values, displacement, and time curves during the needle punching process.

Quantitative analysis of sensitivity

By calculating the ignition probability at different energies or velocities, drawing sensitivity curves, and quantifying the sensitivity of the medication.

2、 Characteristics

high-precision control

The needle punching force, speed, and angle can be precisely adjusted with a small error range, ensuring the repeatability of the test results.

Security protection design

Fully enclosed explosion-proof structure, built-in emergency brake button, overload protection device, and explosion-proof isolation cover to prevent accidental explosion risks during the testing process.

The operation area is equipped with protective doors and safety interlock devices to ensure the safety of operators.

Automation and Dataization

Combining PLC control system with touch screen operation interface, automatically calculate sensitivity values and generate test reports to improve efficiency.

Support real-time data storage and playback, intuitive software interface, and simplified data analysis process.

Modularity and stability

The core components adopt a quick disassembly structure, which is convenient for daily maintenance and calibration.

3、 Application Fields

Research and production of pyrotechnic devices

Sensitivity testing: Evaluate the mechanical sensitivity of new drugs, optimize formulations and processes, and enhance intrinsic safety.

Quality control: Check the consistency of the chemicals in the production batch to ensure that the product meets safety standards.

Hazard classification: Provide safety basis for the storage, transportation, and use of pyrotechnic devices, and reduce the risk of accidental explosion.

Research on energetic materials

Explore the relationship between the mechanical sensitivity of pharmaceuticals and parameters such as molecular structure and particle size to support material performance optimization.

Standard formulation and validation

By accumulating a large amount of experimental data, support the formulation and revision of national or industry standards, and promote the standardized development of the industry.

Teaching and Demonstration

Used for safety engineering and blasting technology courses in universities or training institutions to visually demonstrate the principle of needle sensitivity testing and enhance teaching effectiveness.