The correct selection of the frequency of the induction heating furnace is very important

The correct selection of the current frequency of induction heating is very important, which will directly affect the thermal efficiency of the inductor and the heating efficiency of the blank. For example, induction heating cylinder blank, blank diameter. The ratio of the current penetration depth △, that is, when D/A = 2.5-5.5, the heating efficiency is better. When D/A <2.5, the heating efficiency of the blank decreases; when D/A>5.5, because the selected current frequency is too high, the heating time is prolonged, the heat loss increases, the thermal efficiency decreases, and the heating efficiency also decreases. The cost of induction heating furnace increases.