How to operate the temperature and humidity inside the Dongguan High and Low Temperature Alternating Humidity Test Chamber?
The high and low temperature alternating damp heat test box is to put the product at the required temperature and environmental humidity, depending on the product's heat resistance, cold resistance, and its ability to resist environmental humidity, then the high and low temperature alternating damp heat test box also has heating, cooling, and humidification , Ability to reduce humidity.
The heating equipment is an important part of manipulating the high and low temperature alternating damp heat test box to increase the temperature; this is when the control panel obtains the temperature increase command, it outputs the working voltage to the car relay, and about 3-12 volts AC is added to the middle relay; its communication terminal It is equal to the connection of the transmission line; the AC contactor is also sucked in separately. There are working voltages on both sides of the electric heater to make it hot. According to the centrifugal fan of the circulation system, the heat is sent to the box to increase the temperature of the high and low temperature alternating damp heat test box , The temperature will soon reach your preset value; the control panel will be adjusted according to the conduction of the added intermediate relay; people can adjust the heating value by looking at the heating load rate on the display in the high and low temperature alternating damp heat test box; it is in The temperature control is around 89 degrees. How to operate smoothly below 89 degrees? The high and low temperature alternating damp heat test box is on one side according to the heating load rate of the intermediate relay; on the other hand, it is stable and balanced according to the cooling cycle system of the refrigeration compressor ; The temperature is stable.
Heat reduction is a key step of the high and low temperature alternating damp heat test box, and is the key main parameter to judge the characteristics of a high and low temperature alternating damp heat test box. It includes four major components: refrigeration compressor, cooler, throttling device, and air conditioning evaporator . The refrigeration compressor is the cardiovascular system of the refrigeration unit. It sucks in the ultra-low temperature and bottom pressure vapor and turns into an ultra-high pressure vapor. According to the condenser, it becomes a liquid and releases heat. The centrifugal fan takes away the heat. Therefore, the high and low temperature alternating damp heat test chamber The bottom is for the warm air, and then it is the bottom pressure liquid according to the throttle valve, and then the air conditioner evaporator becomes the ultra-low temperature bottom pressure vapor and finally returns to the refrigeration compressor; the refrigerant digests and absorbs the heat in the air conditioner evaporator for the whole process of vaporization Heavy and digestion and absorption of heat, to achieve the purpose of refrigeration, the whole process of reducing heat in the high and low temperature alternating damp heat test box.
The humidification system software is roughly the same as the heating system software; this is the whole process of the electric heater heating water to steam; the purpose of humidifying the high and low temperature alternating damp heat test chamber.
The dehumidification system software is carried out by the refrigeration unit, and the air-conditioning evaporator is placed in the high and low temperature alternating damp and heat test box; it is relatively cold, the high and low temperature vapor in the high and low temperature alternating damp and heat test box meets the cold block condenser into a liquid; There is very little moisture in the high body of the constant shell, which can achieve the purpose of dehumidification.
Silver Copper Alloy
Silver-Copper Alloy has good electrical conductivity, fluidity and wettability, good mechanical properties, high hardness, wear resistance and resistance to fusion welding, with a tendency to segregation. It is melted in a vacuum medium frequency furnace, and the ingots can be cold processed into plates, sheets and wires after homogenization and annealing. Silver-copper alloy can be used as contact points for air circuit breakers, voltage controllers, telephone relays, contactors, starters and other devices, conductive rings and fixed contacts.