Tungsten Heater - Heating Element

The heating element is a kind of electronic device which can convert the electrical energy into thermal energy, it is widely used in water heater, dishwasher, oven, toaster, coffee maker, and other devices which need the performance of heat production. The heating element is mainly composed by the electric coil which can be wrapped by insulating material or protective material. When the current pass through the wire, it will generate heat after encountering resistance. The amount of heat can be changed by adjusting electric current. Heating element comprises a short-wave infrared heating tube, medium-wave infrared heating tube, far outside heating pipes and heater band.

Under normal conditions, the degree of burning of the heating element will increase when time goes by. Therefore, they are often designed to be as accessible style, which can easy to replace a broken heating element. However, replacement of components would cost more. Taking into account this problem, it is better to do a test before replacement to ensure whether the problem is in the heating element. It may because that the electricity had not arrived element, resulting in components cannot generate heat, there may be a problem of wiring, or other reasons.

The quantity of heat of heating element is mainly due to its metallic material. Tungsten heater is often used as a heating element for vacuum deposition for its good conductive property. The reasons for choosing metallic materials as a part of the heating element are that they are able to withstand repeated heating and cooling, cost less, and have good results with high material utilization. In wet conditions, heat insulation material will spread out the heat, to prevent heating element direct contact with moisture in the air.  Most heating elements use Nichrome 80/20 (80% nickel, 20% chromium) wire, ribbon, or strip. Nichrome 80/20 is an ideal material, because it has relatively high resistance and forms an adherent layer of chromium oxide when it is heated for the first time.

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