钢壳中频电炉中磁轭有什么用？

磁轭是硅钢片垒叠制成的轭铁，它均匀对称地分面在感应圈的四周，它的作用是约束感应圈漏磁向外扩散，提高感应加人的效率，另外作为磁屏蔽减少炉架等金属构件 的发热，还起到加固感应器的作用。

中频炉炉体内置仿形磁轭，磁轭屏蔽能减少漏磁，防止炉体发热，提高效率。同时磁轭起支撑固定感应圈作用，使炉体达到高强度、低噪音。

磁轭是采用冷轧硅钢片，不锈钢夹板制作的月牙形磁轭，铁芯与线圈的结合面为圆弧面，压紧处是一个面而不是过去的一条线，这种的结构压紧效果好、漏磁少。硅钢片叠装后，用专用夹板加紧，而不用专用的穿心螺杆加紧,此种结构能充分利用硅钢片的导磁面积,减少中频感应熔炼炉炉体局部发热的可能性。

磁轭的构成及工作原理

磁轭通常指本身不生产磁场（磁力线）、在磁路中只起磁力线传输的软磁材料、磁轭普遍采用导磁率比较高的软铁、A3钢以及软磁合金来制造，在某些特殊场合，磁轭也有用铁氧体材料来制造的。

由于磁轭的存在，我们可以把通电线包（线圈）、永磁体生产的磁力线传到我们需要的地方，这点有一点象电路

在磁轭与不锈钢板夹之间装有特殊设计的水冷散热器，中频感应炉在运行状态下，保证上磁轭处于常温状态，防止因磁轭温度甚高而导致其变形，从而加强了对感应圈的支撑，提高了炉子整体强度。

What is the use of the yoke in the steel shell medium frequency electric furnace?

The yoke is a yoke made of a stack of silicon steel sheets. It is uniformly and symmetrically divided around the induction coil. Its function is to constrain the magnetic flux leakage of the induction coil to improve the efficiency of the induction and increase the magnetic shielding. The heat generation of metal members such as the hob also serves to reinforce the inductor.

The intermediate frequency furnace body has a built-in yoke, and the yoke shielding can reduce the leakage magnetic flux, prevent the furnace body from heating and improve the efficiency. At the same time, the yoke acts as a support for fixing the induction coil, so that the furnace body achieves high strength and low noise.

The yoke is a crescent-shaped yoke made of cold-rolled silicon steel sheet and stainless steel splint. The joint surface of the iron core and the coil is a circular arc surface, and the pressing portion is a surface instead of a line in the past. Good, less magnetic leakage. After the silicon steel sheets are stacked, they are tightened with a special splint instead of a special threaded screw . This structure can make full use of the magnetic permeability area of the silicon steel sheet and reduce the possibility of local heating of the medium frequency induction melting furnace body.

The structure and working principle of the yoke

The yoke usually refers to a soft magnetic material that does not produce a magnetic field (magnetic line) itself, which is only transmitted by a magnetic field line in a magnetic circuit, and a yoke is generally manufactured by using soft iron having a relatively high magnetic permeability, A3 steel, and a soft magnetic alloy, in some special cases. Occasionally, the yoke is also made of a ferrite material.

Due to the existence of the yoke, we can pass the magnetic lines generated by the energized wire package (coil) and permanent magnet to the place we need, which is a bit like a circuit.

A specially designed water-cooled radiator is arranged between the yoke and the stainless steel plate clamp, and the intermediate frequency induction furnace ensures that the upper yoke is at a normal temperature state during operation, thereby preventing deformation due to the high temperature of the yoke, thereby strengthening the pair. The support of the induction coil increases the overall strength of the furnace.

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