... technology.2. Rapid temperature rise, can blow out hot air as soon as the heater is switched on. Continuous PID ... applications of industry, such as heating, ageing test, solidify, drying, temperature rising, maintain of cement, and it is the ... many machines, such as hot air convey furnace, drying furnace, oven, drying house, dry tunnel, PS drying plate Of printer, drying of sand casting, shrink ...