Principle Of Electric Heating Wire Resistance Heating
The electric heating wire uses the Joule effect of electric current to convert electromagnetic energy into energy to heat the body. The heating ring is generally divided into instant resistance wire heating and instant resistance wire heating. The working voltage of the two switching power supplies is immediately applied to the heated object, and when the current is exhausted, the electric heater ironing machine of the heated object heats up. The block that can be heated immediately by the resistance wire must be an electrical conductor, but the resistance is higher. Since the heat generated by the heating block itself is included in the internal heating, the thermal efficiency is very high. Real-time resistance wire heating needs to use professional aluminum alloy materials or non-metallic materials to make heating elements. The thermal component generates energy and is transferred to the heating block through the radiation source, heat convection and transmission.
Tubular member cast flat heater is a kind of thin-section insulation board made of common metal material with tubular electric heating material bent into 1 to 5 turns, and then made of silicon aluminum alloy profile or silicon alloy copper. Compared with the tubular member type insulation board, it has a larger reasonable heat conduction area. This structure has high impact toughness, long life and high thermal efficiency. It is very suitable for natural environments with vibrations such as ships and automobiles. At this stage, most of the rice cookers produced at home and abroad adopt this structure.
The electric heater can generate heat immediately in the heating block, with high thermal efficiency and rapid heating. According to the heating technology requirements, the heating chip can heat all personnel uniformly or partially (including surface heating), and simply heat the vacuum pump and working atmosphere. During the entire production process of the electric heater, organic waste gas, residue, and dust are small, and the heating block is kept clean and free of environmental pollution. Therefore, electric heaters are widely used in industries such as production, scientific research, and testing.
