Testing instrument for stability and safety of the

2022-10-02
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Electrostatic spark sensitivity tester: ESD electrostatic spark sensitivity tester is used to accurately test the total spark energy discharged to the sample and the part of energy really absorbed by the sample to cause explosion. Electrostatic spark is one of the most frequent and indistinguishable factors that cause accidental explosion of energetic materials. Electrostatic spark sensitivity is one of the most important safety parameters of energetic materials. It is very important for the treatment, processing or transportation of energetic materials. These tests are used for quality control of man-made explosives, characterization and certification of new explosives, supervision of explosives in service, R & D work and many other test projects. This test complies with en, STANAG 4490, mil-std-1751a- methods 1031, 1032 & 1033, en test requirements

2. Vacuum stability tester: vacuum stability tester is used to test the chemical stability of energetic materials. Put the sample to be tested in the vacuum tube in the heating device and keep it at a constant temperature (30-160 ℃) for a specific period of time. Evaluate the chemical stability of the sample by testing the volume of gas released by the heated sample. The instrument is equipped with a high-sensitivity pressure sensor, which can conduct real-time data acquisition, analysis and archiving of the test through professional software. A single test device can test up to 20 samples at the same time. This test fully complies with the requirements of NATO STANAG 4556 (NATO standardization agreement). The instrument can meet the user-defined test requirements through customization, for example, the test tubes with different volumes (rated 25 cm3) under different atmospheric pressures can be heated for a long time in a lower temperature range. Vacuum stability test is often used to test the compatibility of energetic materials with the materials specified in STANAG 4147, and to control the quality of energetic materials (other STANAG standards). Due to the impurities that destroy the stability in energetic materials, as well as the incompatibility or aging effect with surrounding materials, the instrument can test the chemical stability of energetic materials with high sensitivity, high precision and high repeatability. Vacuum stability test can be widely used in the fields of certification, inspection, manufacturing, quality management and R & D of energetic materials

3. Differential thermal analyzer: DTA differential thermal analyzer is a method used to evaluate the thermal stability, purity (melting point, freezing point), compatibility, thermal decomposition and other parameters of energetic materials. It can be used for quality management of the production of energetic materials, evaluation, certification, supervision, research and development of new energetic materials, etc. DTA is a differential thermal analysis specially used for testing explosive substances that may cause damage to ordinary thermal analyzers. The instrument has a solid structure and can resist the explosion of up to hundreds of milligrams of explosives (it can analyze truly representative samples). A large number of optional accessories meet users' various test requirements. Meet the requirements of STANAG 4515. These characteristics make DTA widely used in energetic material laboratories in many countries, some of which have used the instrument for more than ten years. Based on the design of DTA, the instrument can also be customized according to the special requirements of users, such as a large DTA that simultaneously tests the temperature and pressure of a few grams of samples in a high-pressure vessel

4. large scale differential thermal analyzer: DTA large-scale differential thermal analyzer is used to test energetic materials with a few grams of samples and to evaluate the thermal stability, purity (melting point, freezing point), compatibility, thermal decomposition and other parameters of energetic materials. It can be used for quality management of the production of energetic materials, evaluation, certification, supervision, research and development of new energetic materials, etc. It can be used to analyze substances that decompose more gently in the process of thermal explosion (no explosion), and it can also be used to test explosives, pyrotechnic mixtures or explosive raw materials, especially when studying thermal explosion parameters. Liquid or foaming substances can also be tested

5. Methyl violet tester: the instrument is used to test the chemical stability of propellant, nitrocellulose, nitroglycerin and other organic nitrates by using methyl violet test method. In methyl violet test, the sample in the test tube is heated in the environment required by the standard method until the nitrogen oxide on the sample is detected by methyl violet test paper. The duration from the beginning of heating to the detection of nitrogen oxides is recorded as a constant value of chemical stability. It is judged that the demand for oilfield chemicals will continue to increase. The instrument is composed of an aluminum heating module, in which there are 10 seat holes for placing glass test tubes, and 10 samples can be tested at the same time. The test temperature can be set within the range of 30-180 ℃, and the temperature control accuracy is ± 0.1 ℃

6. Bergman Jinke heat resistance tester: the instrument is used to test the chemical stability of energetic materials such as propellant, nitrocellulose, nitroglycerin and other organic nitrates. Bergman kink test is used to quantitatively test the nitrogen oxides produced by the thermal decomposition reaction of samples maintained at 120 ℃ or 132 ℃. The total amount of nitrogen oxides is determined by acid titration to determine the chemical stability of the sample. The samples are installed in a glass test tube with a special glass adapter. The test tube is inserted into the seat hole of the heating module, and 8-18 samples can be tested at the same time. The test temperature can be set within 30-160 ℃ (usually 120 ℃ or 132 ℃), and the temperature control accuracy is ± 0.1 ℃

7.100 ℃ thermal safety qualitative tester: the device is used to test the chemical stability of propellant and propellant heated to 100 ℃. The sample in the test tube is kept isothermal at 100 ℃ until a reddish brown nitrogen oxide gas is generated above the sample. The instrument can test up to 40 samples at the same time, the test temperature can be set within 30-160 ℃, and the temperature control accuracy is ± 0.1 ℃

8.75 ℃ thermal stability tester: the instrument can detect the self heating phenomenon of energetic materials at 75 ℃ for 48 hours. Test whether the sample is exothermic when the temperature is maintained at 75 ℃ by comparing the rise of the test sample temperature with the inert reference sample. This test complies with the requirements of the United Nations "manual of recommendations on tests and standards for the transport of dangerous goods" and the European Union standard EN: 2002

9. automatic explosion point tester: the instrument is used to test the explosion temperature of energetic materials and can be used with explosion point test. Explosion temperature refers to the temperature at which energetic materials explode when heated at a uniform speed. This test is described in STANAG 44 in the cleaning process 91. The tester is composed of a temperature controller and a porous heating device. The temperature range is 30-400 ℃, the temperature control accuracy is ± 0.1 ℃, and the heating rate is 0.1-20 ℃/min. Up to 5 samples can be tested at the same time

Abel Abel tester: the instrument is used to test the chemical stability of propellant, nitrocellulose and other organic nitrates. In Abel test, the sample in the test tube is heated in the environment required by the standard method until the nitrogen oxide above the sample is measured by starch iodide test paper. The duration from the beginning of heating to detection is recorded as the chemical stability value. The instrument is composed of an aluminum heating module, in which there are 10 seat holes for placing glass test tubes, and 10 samples can be tested at the same time. The test temperature range can be set within 30 ℃ - 180 ℃, and the temperature control accuracy is ± 0.1 ℃

11. Accelerated aging tester: the instrument is used for accelerated (artificial) aging experiments of high-energy materials related to the chemical stability test or service life evaluation of plastic raw materials required by the enterprise after the treatment of waste plastics in daily life by the plastic recycling granulator. Artificial aging experiments are mainly aimed at energetic materials that need long-term storage. Such samples (mainly propellants) are stored for a long time at high temperature (generally 50 – 90 ℃), and the accelerated decomposition reaction inside the samples generally takes several years to develop to a detectable level. After artificial aging, analyze the changes of chemical stability (consumption of stabilizer or antioxidant), sensitivity to external stimulation (collision, friction, electric spark) or mechanical properties (hardness, compression concentration, dynamic coefficient, glass transition temperature, etc.). There are many types of heating modules according to the number of test samples. The glass test tube containing the sample is inserted into the seat hole of the heating module. The test temperature range can be set within 30 ℃ - 160 ℃, and the temperature control accuracy is ± 0.1 ℃

12. wireless thermal radiation monitoring system: wireless thermal radiation monitoring system is a remote sensing test equipment that wirelessly collects temperature data in industrial environment. It is used to monitor the potential thermal runaway reaction in radioactive waste treated by asphaltization, and it can also be used to monitor other reaction systems with explosion risk in the chemical industry. The wireless thermal radiation monitoring system consists of a series of test modules, each module has two temperature sensors, and the data sent by the temperature sensor is transmitted to the receiver, data recorder and computer through RF transmission. The wireless thermal radiation monitoring system can monitor the temperature in dozens of items (containers) at the same time. The software automatically analyzes the temperature detected by the sensor in each container and statistically compares it with the data and critical values collected in the past. When the factory requirements are exceeded, the software will send a warning to the operator. Wireless thermal radiation monitoring system is an important part of nuclear power plant safety system

13. explosive chamber: industrial explosive chamber can resist repeated explosions equivalent to 0.2 – 16 kg TNT. As part of the manufacturing process (e.g. ammunition removal, explosive metal processing, quality inspection), the 104 – 105 explosion life is a technology for industrial customers. The laboratory explosion chamber is designed for scientific experiments, research work and product testing and development in the explosion laboratory. Explosion proof containers are used for the safe transportation and storage of highly sensitive explosive samples, improvised explosive devices (IED) and unexploded ordnance (UXO). These products also include modular explosive magazines that minimize the necessary safety intervals, reinforced removable pyrotechnic containers, mobile storage containers for explosives and ammunition, and mobile containers for dangerous operations of explosives or ammunition. Mobile military equipment removal technology is aimed at the safety ring outside industrial equipment. 4. There is a movable collet locking mechanism to protect the ground treatment of military equipment. It saves and eliminates the cost and risk of hazardous waste transportation or unusable armament treatment. High energy material testing instruments fully meet the needs of the following test items: EC certificate for the sale of civil explosives in the EU (93/15/ec); NATO certificate of conformity of military explosive materials (STANAG 4170); Supervision of military explosive materials; Quality management of manufacturing or processing explosive ingredients (STANAG); Quality management of arms manufacturing; Transportation classification test of explosive raw materials (UN, ADR, rid, IMDG, IATA DGR); Explosion performance test of chemicals and waste products; Judicial inspection of explosives; New energy materials and research and development. (end)

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