Tungsten sheet and tungsten products are widely used, in the first place, the most common application of tungsten sheet is the electric light source parts and electric vacuum devices. Secondly, in the industry, tungsten products and tungsten sheet are used as tungsten boat, high temperature furnace insulation screen and heater. Then, in the medical field, the tungsten products and tungsten sheet are applied to the diagnosis and treatment equipment. Finally, in scientific research, tungsten products and tungsten sheet are applied to radiation and interference shielding.


The characteristics of tungsten plate heater: compared with the tungsten wire heater, the tungsten sheet heater is easier to be processed, but the surface heat load is larger, when it is designed, the resistance value is not easy to adjust, the voltage and current are not easy to be controlled in a reasonable range. And when it is installed, it is relatively easy to crack, the location and shape are not easy to be controlled. The service life is short, and in the production, it is easy to damage. In the using process, if the crack appeared, the overall resistance value of tungsten wire net will change greatly, and the crack will continue to extend