The plastics machinery market at this stage, the heating method is generally used by electric heating ring, BARREL spread through contact heat conduction way, only close to the medial surface of the melt in the heat spread to melt. Most of the lateral heat dissipation into the air, the thermal conduction losses and lead to increased environmental temperature. Another shortcoming is that there is a resistance wire power density low, in some occasions it will not be able to meet the needs of the higher temperature. Electromagnetic heating technology itself is metal Barrel Fever. and can be tailored to specific circumstances in the melt inclusions certain external thermal insulation material This will greatly reduce the heat loss and heat efficiency, energy-saving effect is very notable. 30%~75% up. Electromagnetic heating ring itself is not because of a fever and high temperature insulation materials and cables are used to create, There is no circle of the original electric wire under high temperature oxidation resistance and shorten the life of the issue, Life is long, the heating rate, no need for maintenance, etc., reduced maintenance time and lowering costs. Electromagnetic heating equipment controller composed of two parts : electromagnetic heating and electromagnetic induction heating ring. Power control of the plane temperature (thermal output contactor or solid state relay output) controller to power frequency electromagnetic AC rectifier. filter, reverse the high frequency alternating current into 25-30KHZ through Link received electromagnetic heating ring. BARREL role in the high-frequency alternating current through the insulation material, Barrel Fever itself. Besides, it also can be imported directly into electromagnetic power controller, the original temperature controller to control electromagnetic controller directly. This would not have been the original contact with the output (or SSR), which means the actual work more economical, reliable
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