Current density doubles when the area of effective contact between tissue and electrode is halved,provided that HF current remains contant. 如果高頻電流強度保持不變，那麼人體組織和電極之間的有效接觸面積減半將會使電流密度增大一倍，這將產生四倍的熱量。
As a result,it is found that the electric current of EMC is related with ingot size,and the electromagnetic press balances with the static press of liquid metal. 本文推導了電磁鑄過程中的磁感應強度表達式，並由此導出了電流強度與鑄錠尺寸的關係式，計算的電磁壓力與液體金屬的靜壓頭基本平衡。
