为什么高频加热设备可以对金属加热呢？

2019-08-08 10:27:29

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金属能够在感应器内加热，主要是依靠电磁感应现象。

电磁感应的实质是：交变的磁场引起交变的电场，交变的电场引起交变的磁场。交流电通过导体时导体表面处的电流密度较大，导体内部的电流密度较小，这种现象就是趋肤效应，也叫集肤效应或表面效应。另外还有邻近效应和环状效应，这些对于感应热处理有着非常重要的意义。

电磁感应热处理加热时间短，产品氧化皮少，变形小，且节能环保，易于实现机械化和自动化，因此广泛应用于汽车制造、拖拉机、工程机械、重型机械、轴承工业、铁路及冶金等行业，未来的发展趋势好。

高频加热设备依据电磁感应之原理而研发生产的电磁感应装置，根据金属零件外形和大小，制作相应的感应线圈，对其进行感应加热。加热过程短，加热效率高，环保无污染，深得用户青睐。

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