The operation principle of high and low temperature test chamber
High and low temperature test chamber internal operating system principle is: after three relevant system refrigerant circulation system, air circulation system, electric control system to work together. Apply to industrial products of high temperature and cryogenic reliability test. Of electronic electrician, cars, motorcycles, aerospace, ship weapons, institutions of higher learning, scientific research institutions and other related products in the high temperature of the components and raw materials, ultra-low temperature ( Alternate change) Circulation system, testing the various performance parameters. High and low temperature test chamber refrigerant cycle system principle: liquid refrigerants in air conditioning evaporator digestion, absorption, warm air, Evaporative cooling and dehumidification) Just began to evaporate, finally produce certain refrigerant temperature difference and empty, also completely evaporated into gas, liquid refrigerant refrigeration compressor suction into the narrow ( Working pressure and temperature) After ascension, refrigerant vapor state of digestion, absorption, heat according to the cooler ( Air/water) , solidified into a liquid. After air conditioner expansion valve or capillary throttle pressure into the bottom of the cryogenic refrigerants in air conditioning evaporator, for the whole process of refrigerant cycle system. Air circulation system: high and low temperature test chamber centrifugal fan for import into the air, the air according to the air conditioning evaporator ( Cooling and dehumidification) , air humidifier, electric heating device ( Wen Gui) Positive pressure air supply outlet interior space, the customer must after the air from the air and mixed in the air supply outlet after interior space. Principle: high and low temperature test chamber electric automatic control system contains some energy and automatic control system, some based on ac contactor switch power supply, refrigeration compressor, the cooling fan, household appliances, air humidifier and automatic control system for power supply system, such as, some is divided into temperature and environmental humidity control and maintenance of common failures: temperature and environmental humidity control is according to the environment temperature and humidity control equipment, is expected to return to the air temperature and environmental humidity and temperature humidity and customer set comparison, since the start of the refrigeration compressor ( Cooling and dehumidification) , air humidifier, electric heating, Heating) , and other parts, complete the stable temperature and environmental humidity automatic control system. High and low temperature test chamber has the wide temperature scope, its performance parameters are GB10592 - do the national industry standard 89 high and low temperature test chamber technical standard, press GB2423 shall apply. 1,GB2423。 2 the electrical and electronic products environmental test test A: low temperature test method, test B: high temperature test method 'for goods in ultra-low temperature, high temperature experiment and the stability of hot and humid. Commodity GB2423. 1,GB2423。 2,GJB150。 3,GJB150。 4, IEC, MIL specification. The interpretation of the above is high and low temperature test chamber, the operation principle of hope can help you, if you want to learn more about information of high and low temperature test chamber, welcome to the online consulting service or call the company service hotline ( Website top right corner) For consultation, we will wholeheartedly provide high quality service for you! Tags: & nbsp high and low temperature test chamber
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Cut resistance is one of the most critical performance indicators in personal protective equipment (PPE) testing, directly affecting worker safety in high-risk industries such as metal processing, machinery manufacturing, and emergency rescue. The TDM Cut Test Machine GT-KC28 plays a vital role in accurately evaluating the cut resistance of PPE products, including gloves, protective clothing, footwear materials, composite materials, rubber, and industrial textiles.
By adopting high-precision force control systems, intelligent data processing, and stable transmission technology, the GT-KC28 TDM Cut Tester can accurately measure the critical cutting force of materials and ensure excellent repeatability and comparability of test results. Its user-friendly touch-screen operation, comprehensive data storage, USB data export, and built-in thermal printer greatly improve laboratory efficiency and data traceability.
The TDM Cut Test Machine GT-KC28 fully complies with major international and national standards such as ISO 13997, EN 388, ASTM F2992/F2992M, ANSI/ISEA 105, and GB 24541-2022, making it a reliable solution for PPE manufacturers, third-party testing laboratories, and research institutions. Through precise and standardized cut resistance testing, the GT-KC28 helps reduce industrial cutting injuries, supports PPE certification across global markets, and ensures that protective equipment delivers reliable safety performance in real-world applications.
The Heat Contact Machine GT-C101 is a specialized testing instrument designed for evaluating the heat resistance and thermal protective performance of gloves, protective clothing, and other heat-resistant materials used in high-temperature environments. In industries such as smelting, casting, welding, and glass manufacturing, workers are frequently exposed to intense heat, making accurate testing of contact heat resistance essential for ensuring safety and compliance.
GT-C101 simulates real working conditions by measuring heat transfer delay and thermal transmission under instant contact with high-temperature surfaces. Fully compliant with EN 407, EN 702, and ISO 12127-1 standards, this machine provides precise, repeatable data for manufacturers, laboratories, and research institutions. With high-temperature capability up to 500°C, advanced calorimetry, digital monitoring, and adjustable contact speed, the Heat Contact Machine GT-C101 is an indispensable tool for developing and certifying next-generation PPE and heat-insulation materials.
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