In recent days, Aspen has provided a one-week hot/cold impact test for the partner company. The test product has the auto parts provided by the partner company. The hot and cold impact tester adopts the reverse Kazan cycle, which consists of two isothermal processes and two An adiabatic process consists of the following process: the refrigerant is adiabatically compressed by the compressor to a higher pressure, consumes the power to increase the temperature of the exhaust gas, and the refrigerant is then transferred through the condenser in isothermal contact with the surrounding medium to transfer heat to the heat. Surrounding media. After the refrigerant through the shut-off valve adiabatic expansion work, when the refrigerant temperature decreases. This cycle is repeated to achieve the purpose of cooling down.
Cold and heat shock test chamber cooling method is divided into air-cooled, water-cooled, air-cooled higher requirements on the premise, water-cooled standard with a water-cooled water tower can be commensurate. Cold and heat shock test chamber refrigeration system: In order to ensure the cooling rate and the minimum temperature of the test chamber, we specially use the best chiller in the industry (France Taikang / Germany Copeland selected according to product temperature range and environmental requirements) composed of binary complex Stacked freon refrigeration system. Contains a high-pressure refrigeration cycle and a low-pressure refrigeration cycle. The connection vessel is an evaporative condenser. The function of the evaporative condenser is to use the low-pressure cycle evaporator as a high-pressure cycle condenser. The design of the refrigeration system applies energy-adjustment technology. An effective treatment method can not only ensure the normal operation of the refrigeration unit, but also can effectively adjust the energy consumption and cooling capacity of the refrigeration system, so that the refrigeration system can be used Degrees and failures have dropped to a more economical state.
This test uses a touch-screen thermal shock test box, the controller uses the entrance LCD display screen, can display the measured value and set value, time. The control program has multi-stage program editing, temperature and humidity can be controlled by OUICK or SLOP. The temperature change of the hot and cold impact test in the box is changed from minus 65°C to 200°C. The built-in moving pulley is easy to move and place and has a strong positioning screw. The compressor's rotating system can effectively remove the condensation tube and the capillary. Lubricants and the full range of environmentally friendly refrigerants (R23, R404, R507). Explosion-proof hot and cold impact test box has a high texture appearance, the body adopts arc shape, the surface is treated with matte stripes, and the plane has no reaction handle, easy to operate, safe and reliable.