electric heating element Electric heating element classification ①According to its structure,it is divided into single electric heating element and composite electric heating element , single heating element consists of a material;while composite electric heating element is composed of several materials. ②According to their different materials, can be classified into metallic and non-metallic electric components electric heating element, metal element such as nickel wire, iron chrome aluminum wire ( Ni-Cr ) ( Fe-Cr-Al ) ( Ni-Fe ), nickel wire, nickel wire ( Ni-Cu ) ); non-metallic electric components are silicon carbide, silicon molybdenum rod, a PTC electric heating element electric heating coating, etc. ③According to their different shapes, can be divided into metal tube, quartz tube, ceramic tube, plate, square, oval, round,ceramic coating, such as electric heating elements. Metal tubular heating element history and prospect In the early thirty's, the Holt pointed the company will metal tubular heating element used in household appliance. Currently, electric heating pipe in the country, has been widely used in injection molding industry, chemical industry, auxiliary heating, industrial and household electric oven, vertical air conditioning and other electrical appliances. In order to further improve the thermal efficiency, many domestic manufacturers have a large number of production of the finned heating pipe supply market.