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，那么人體組織和電極之間的有效接觸面積減半將會(huì )使電流密度增大一倍，這將產(chǎn)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(guò)程中的磁感應強度表達式，并由此導出了電流強度與鑄錠尺寸的關(guān)系式，計算的電磁壓力與液體金屬的靜壓頭基本平衡。
