Heater products are used in the field of household appliances heating equipment, such as air conditioning auxiliary heating, heater, Yuba, etc. PTC ceramic is used as the core of heating element, compared with the traditional heating wire, electrical heated tube and far infrared quartz heater, it can automatically control the temperature, with a wide range of voltage, no flame, safe and reliable as well as long life. PTC heater generally adopts brazing or gluing aluminum strip structure, the aluminum tube and the aluminum strip for heat dissipation are bonded by silica gel. In addition, there are also a small number of use of skived fin structure, that is, aluminum tube and heat aluminum strip is an integral structure.