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感应电热的特点是在被加热物料

网址:www.bddianlu.com.cn时间:2024-03-12 14:35:04(部分内容来源于网络,不代表本站观点)

感应炉的基本部件是用紫铜管绕制的感应圈。

An alternating voltage is added at both ends of the induction ring to generate an alternating electromagnetic field. The conductive material is placed in the induction ring, and eddy current is generated in the material due to electromagnetic induction, and the electrical energy is converted into heat energy by the action of resistance to heat the material.
感应圈两端加交流电压,产生交变的电磁场,导电的物料放在感应圈中,因电磁感应在物料中产生涡流,受电阻作用而使电能转变成热能来加热物料;

Therefore, induction electric heating can also be considered as a direct heating resistance electric heating.
所以,也可认为感应电热是一种直接加热式电阻电热。

The characteristic of induction heating is that the electric heating power (current distribution) transformed in the heated material is very uneven, the surface is large, and the center is small, which is called the skin effect.
感应电热的特点是在被加热物料中转变的电热功率(电流分布)很不均匀,表面大,中心小,称为趋肤效应。

In order to improve the electric heating efficiency of induction heating, the power supply frequency should be appropriate, small melting furnaces or surface heating of materials using high frequency electricity, large melting furnaces or deep penetration heating of materials using medium frequency or power frequency electricity.
为了提高感应加热的电热效率,供电频率要合宜,小型熔炼炉或对物料的表面加热采用高频电,大型熔炼炉或对物料深透加热采用中频或工频电。

The induction coil is a load of considerable inductance, and its power factor is generally very low.
感应圈是电感量相当大的负载,其功率因数一般很低。

In order to improve the power factor, the induction coil is generally connected to an intermediate or high frequency capacitor, called a resonant capacitor.
为了提高功率因数,感应圈一般并联中频或高频电容器,称为谐振电容。

The gap between the induction ring and the material should be small, the induction ring should be made of square copper pipe, water cooling in the tube, the turn gap of the induction ring should be as small as possible, and the insulation should be better.
感应圈和物料之间的间隙要小,感应圈宜用方形紫铜管制作,管内通水冷却,感应圈的匝间间隙要尽量小,绝缘要好。

Induction heating device, mainly used for steel, copper, aluminum and zinc heating and melting casting, heating fast, less burning loss, high degree of mechanization and automation, suitable for configuration on the automatic line.            

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