20吨钢壳中频炉磁轭局部发热是什么原因？

20吨钢壳中频炉磁轭，由于构成磁轭的硅钢片发热量大，需要通水散热，虽然集中了部分磁场，但被硅钢片的损耗消耗掉了，因此钢壳感应炉比铝壳感应炉并不省电吗。从能量守恒定理上讲，铝壳感应炉的外壳不用通水散热，而钢壳炉的外壳、磁轭需要通很多水管散热，钢壳感应炉肯定比铝壳感应炉浪费电能。在实际运用中，一吨的节能铝壳感应炉熔化一吨钢用电量低于500kwh，一吨的钢壳感应炉熔化一吨钢用电量得高于600kwh。

What is the reason for the local heating of the yoke of the 20 ton steel shell intermediate frequency furnace?

For the yoke of a 20-ton steel-shell intermediate frequency furnace, because the silicon steel sheet forming the yoke generates a large amount of heat, it needs to pass water to dissipate heat. Although part of the magnetic field is concentrated, it is consumed by the loss of the silicon steel sheet. Therefore, the steel shell induction furnace is more inductive than the aluminum shell Does the furnace not save electricity? From the perspective of energy conservation, the outer shell of the aluminum shell induction furnace does not need to pass water to dissipate heat, while the shell and yoke of the steel shell furnace require many water pipes to dissipate heat. The steel shell induction furnace must waste electric energy than the aluminum shell induction furnace. In actual use, a one ton of energy-saving aluminum shell induction furnace uses less than 500kwh for melting one ton of steel, and a one ton of steel shell induction furnace uses more than 600kwh for melting one ton of steel.

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