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too. Among the disadvantages are the expense of a high-frequency generator and the need for proper alignment. If the mold is placed off centre, the heat distribution is uneven. But the main disadvantage is the dependence of the process on good inductive coupling and thermal conductivity of the mold. The magnetic field can penetrate the mold only 0.5mm to 3mm. From there on, the heat has to be "transported" into the mold by the thermal conductivity of the mould material. Uniform heating is much more

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