Accelerated Aging Tester (HBA 24)

Under normal circumstances, the decomposition rate is very small (usually several years for propellants or propellants), and it takes several years to develop to a detectable level. After artificial aging, changes in chemical stability (consumption of stabilizers or antioxidants), external stimuli (collision, friction, electrostatic sparks), or mechanical properties (hardness, compression concentration, dynamic coefficient, glass transition temperature, etc.) can be analyzed.

technical parameters

1. Temperature range: 30-160 ° C

2. Temperature accuracy: ± 0.1 ° C

3. Temperature control stability: ± 0.2 ° C

4. Typical sample size: 5 g

5. Glass test tube with lid: outer diameter 26 mm, length 152 mm

6. Size and weight: Host: 30 x 21 x 14 cm (length x width x height), 4.5 kg.

Heating module: 39 x 39 cm (diameter x height), 40 kg.

7. Power supply and output: 220-250 V/50 Hz, 500W.

Please contact IDEA SCIENCE for detailed information

Methyl Violet Tester: Test and evaluate the thermal stability of nitrocellulose, glycerol, and nitroglycerin according to the methyl violet test procedure. The instrument can also be used to test high-energy drugsThe thermal stability. This method mainly uses NO2 produced by the decomposition of nitrate esters to evaluate the stability of the tested substance, which is determined by the change in color of the test paper. The testing time starts from the insertion of the sample into the heating module until the color of the test paper changes.

Abel Thermal Stability Tester: Evaluate nitrocellulose fibers according to the Abel test procedureXiaohua glycerolNitroglycerin, gun medicineThermal stability of energetic materials such as propellants. Heating nitrate ester samples will produce NO2 during decomposition, accompanied by the rapid increase in decomposition rate due to the production of "red smoke" during heating. Determine the appearance of gas decomposition products through the color change of starch iodide test strips. The test result is the time interval from the insertion of the sample into the heating module to the color change of the test paper.

Veyori tester: used for testing drugsThe chemical stability of nitrocellulose and its products can also be tested. Add a quantitative sample to a test tube and heat it under specified conditions to test the heating time required for the litmus paper to turn red or for the sample to release brown smoke, in order to evaluate its chemical stability.

Accelerated aging tester: store explosive samples at high temperatures (usually 50-90 ° C) for a long time, and evaluate changes in sample sensitivity, stability, chemical composition, or mechanical properties during the test period. Used for accelerated (artificial) aging experiments of energetic materials related to chemical stability testing or service life evaluation. Explosive samples will undergo exothermic decomposition during their service life, and the rate of exothermic decomposition is proportional to temperature. Under normal circumstances, the decomposition rate is very low for propellants or propellantsIt usually takes several years to develop to a detectable level. After artificial aging, changes in chemical stability (consumption of stabilizers or antioxidants), external stimuli (collision, friction, electrostatic sparks), or mechanical properties (hardness, compression concentration, dynamic coefficient, glass transition temperature, etc.) can be analyzed.

Bergman Jinke Thermal Stability Tester: Used to evaluate nitrocellulose and smokeless drugsOr the thermal stability of propellants at temperatures of 120 and 132 ℃. The sample will decompose and release a certain amount of gas during the heating process. The gas products will be collected using a glass liquid collection tube and analyzed using an acidity meter.

Thermal sensitivity, thermal stability, decomposition temperature, and thermodynamic testing methods:

1. Automatic explosion point tester: The automatic explosion temperature tester is used to test and evaluate the thermal sensitivity of energetic materials. Thermal sensitivity is a key indicator to measure the ease of explosion of energetic materials under external thermal energy, which is crucial for ensuring the safety of energetic materials during storage, transportation, and use.

2. Explosion resistant differential thermal analyzer: The explosive differential thermal analyzer is specifically used to test the thermal stability, stability, and compatibility of energetic materials. The test results can accurately describe the relationship between the physical and chemical properties of the material and temperature changes. The device can test the starting decomposition temperature, peak temperature, ending decomposition temperature, temperature difference up to large temperature, Onset point temperature, as well as the full temperature range curve of the sample during the heating process from room temperature to 550 ℃.

3. Dynamic vacuum stability tester: tests the amount of gas released by energetic materials during heating to evaluate their chemical stability and compatibility. The main applications include: thermal safety testing, storage life assessment, compatibility testing, aging testing, full decomposition temperature and decomposition time testing, small parallel reaction vessels, thermal decomposition process kinetics testing, etc.

4. Large scale critical temperature tester: Under external conditions such as strong electromagnetic radiation or high temperature, solid propellants will absorb electromagnetic energy and be heated. When a certain temperature is reached, a thermal decomposition reaction occurs inside, causing a sharp increase in temperature and potentially leading to combustion or explosion. Therefore, understanding and mastering the critical temperature of solid propellants is very important. In addition, critical temperature testing can provide guidance for the storage and transportation of propellants.

5. Explosive heat tester: can be used to test the explosive heat, explosive volume, and pressure of explosive systems of energetic materials; It can also be used to test the combustion calorific value of various organic or inorganic samples. The experiment can be conducted in different atmospheric environments (air, nitrogen, oxygen, vacuum). The ignition system can resist the impact of detonation waves, high temperature, high pressure, and active oxygen environment. The pressure collection system detects real-time pressure changes inside the explosive container and draws pressure curves.

6. Solid propellant burning rate testing system: used to test important parameters of material combustion process, such as burning rate coefficient, burning rate pressure index, burning rate temperature sensitivity coefficient, etc. These parameters are key indicators for characterizing the combustion performance of propellants. They not only help evaluate the combustion efficiency of propellants, but also provide important theoretical basis for the formulation design and production process of propellants.

7. Automatic lifting acceleration aging tester: Energy containing materials undergo exothermic decomposition during use or storage, and the exothermic reaction rate is proportional to temperature. Under normal conditions, the decomposition rate is very low, and accelerated aging tests can be used to predict the service life of explosives. During the experiment, evaluate changes in sample sensitivity, stability, chemical composition, or mechanical properties.

8. Bergman Kink tester: tests the thermal stability of substances and is used to evaluate the chemical stability of energetic materials. This test is based on measuring the content of gas products released during the thermal decomposition process of the sample. The generation of gas products is evaluated by volumetric analysis of acids in water extracts.

9. Viennese tester: used to test the chemical stability of energetic materials, and can also test the chemical stability of nitrocellulose and its products. Add a quantitative sample to a test tube and heat it under specified conditions to test the heating time required for the litmus paper to turn red or for the sample to release brown smoke, in order to evaluate its chemical stability.

10. Methyl violet tester: Evaluate the thermal stability of energetic materials. This method mainly uses NO2 produced by the decomposition of nitrate esters to evaluate the stability of the tested substance, which is determined by the change in color of the test paper. The testing time starts from the insertion of the sample into the heating module until the color of the test paper changes.

11. Absolute heat calorimeter: It can directly simulate uncontrolled reactions on a factory scale in the laboratory. The use of insulated Dewar vessels can minimize the heat loss between the calorimeter (low phi factor value) and the environment. The Dewar system consists of a double shell 1.1 L stainless steel reaction vessel. The rated pressure at room temperature is 35 bar, and a mechanical stirring device is provided.

12. Local thermal sensitivity meter: used to test the reaction of samples at different temperatures, such as thermal decomposition, combustion, etc. Through testing, its thermal stability, thermal sensitivity and other properties can be understood, providing a basis for subsequent optimization and improvement. Local thermal sensitivity testing is a method of evaluating the reaction characteristics of energetic materials under local heating conditions. It can be used to characterize the difficulty of combustion or explosion of a sample under the action of a local heat source.

13. Slow burning test instrument: The burning test of energetic materials is designed to test the sensitivity of chemicals to unexpected thermal stimuli and the severity of their reactions in manufacturing, storage, transportation, and practical environments.