Selection method of quenching transformer capacity of induction heating furnace

Selection method of quenching transformer capacity of induction heating furnace

The capacity of the quenching transformer of the induction heating furnace is generally 3-5 times the power of the intermediate frequency power supply. In production, the load duration of the quenched transformer is different. For example, the capacity of a transformer with a low load duration can be selected smaller. For example, if a gear is heated for 5s, and the cooling and loading and unloading of the workpiece is 10s, the load duration is 5 /(5+10)=5/15 =0.33; when scanning and quenching a long shaft, the heating time is 300s, and the time for delayed cooling and loading and unloading of the workpiece is 40s, then the load duration rate is 300/(300 +40 ) =0.88o At this time, the capacity of the quenching transformer should be selected larger.