The ceramic galvanizing pot consists of pot body of industrial ceramic material, protective heater and automatic temperature control system. It has a series of characteristics, such as not producing zinc slag by the pot proper, long life, impact resistance, high thermal efficiency, etc. Especially the protective heater is cooled with molten zinc and this can not be realized through the inside heating technology for hot galvanizing at ho- meand abroad. Digitized control circuit can control molten zinc temperature within ±1℃ range.     
     The temperature control circuit adopts large power thyristor, whole system forms a closed loop circuit and so automatic temperature control can be realized. When the system set point is changed or the input and ou-tput influential factors including the addition of cold zinc ingot or workpiece occur, the system can enter PID regulation in advance and restrain overregula-tion or under-regulation before up to temperature index. Thetemperature accuracy of molten zinc can be controlled ±1℃ range of temperature standard value. Because of the uniform heating of the protective heater, low temperature change during the formation ofgal- vanized coating and non-corrosion of ceramic pot, the product is uniformly galvanized, finished prod-uct ratio is high, quality is stable and the zinc consumption decreased from 80~120 kg / tonne with cast iron pot to 50 kg / tonnewith ceramic pot. LED display screen is designed for electric controlsystem and theoperation situation of heater can be clear at a glance.