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Beijing Yunqi Intelligent Manufacturing Technology Co., Ltd
Automatic explosion point tester
NegotiableUpdate on 05/06
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Overview
The S-180EX automatic explosion point tester is used to test the lowest temperature at which a sample, including explosives, can explode under certain test conditions. It can test up to 50mgT-N-T to measure the thermal sensitivity of a substance, but it is not a strict physical and chemical constant. In addition to the chemical structure of the substance, the explosion temperature is not only related to the physical and chemical properties of the substance, such as melting point, volatility, thermal conductivity, heat capacity, etc., but also to the testing conditions, such as instrument construction, testing method, and charge amount.
Product Details
Testing process:
The sample to be tested should first undergo explosion temperature prediction. The sample tube should be inserted into the heating module and heated at a rate of 3 or 5C/min until the sample explodes. The temperature at the time of explosion can be recorded using three to five samples for testing. The host contains two independent temperature controllers for over temperature protection and temperature control. Once the heating temperature unexpectedly exceeds the set value, the independent over temperature protector will cut off the heating and emit a buzzing sound.
Control the temperature of the heating module at a certain point 40-50 degrees above the explosion temperature, and keep it constant within a temperature difference range of 1 degree. Record this temperature. Insert the sample tube into the heating module and start recording time until ignition or other reactions are observed. Stop recording time. Repeat the experiment at least 5 times at the same temperature and take the average.
Software automatic processing of 5-second delay function: Real time monitoring of sample temperature trend, selecting at least 4-5 temperature points for testing before and after the 5-second delay period, i.e. between 2-10s. Calculate the average time corresponding to each temperature point using arithmetic mean, and draw temperature and temperature difference curves. Find the temperature corresponding to the 5-second delay period on the curve, evaluate, process, archive, and export the experimental results.
Technical parameters:
1. Temperature measurement range: 20-400 ℃, temperature resolution: ± 0.001 ℃;
2. Working upper limit temperature of alloy bath: 400 ℃;
3. Heating rate: 0.1-20 ℃/min and constant temperature mode;
4. Timing range: 0-100s, time resolution: 1s;
5. Stainless steel heating module: There are 6 heating seat holes with a diameter of 16mm and a depth of 45mm. Small volume heating seat holes and high heat transfer elements are used to ensure fast and accurate temperature control. The structure is sturdy and has cooling function;
6. Computer control: RS232 interface, full process automatic control, dedicated software package for data acquisition and calculation. Remote observation, real-time monitoring of sample temperature changes, drawing temperature temperature difference curves, evaluating and processing test results;
7. Use stainless steel cooling water jacket;
8. Five explosion detection thermocouples, real-time collection of sample data and recording of explosion effects, with a response accuracy of ± 0.001 ℃;
9. Reference thermocouple, record temperature baseline, used for accurate calculation of explosion temperature, with an accuracy of ± 0.001 ℃;
10. Power supply: 220VAC, power: 1000W.
