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电子束技术已广泛地应用于熔炼、焊接和金属加工。由于电子束的总效率高和定向性强,用于热处理时可以对其他热处理方法不能处理的零件进行处理。但这种方法的生产成本目前还较高,所以还很少用于生产实际。电子束加热淬火原理电子束是一种高能量的电子流。这种高能电子流是通过直热式阴极(钽)在电子枪内产生的。由电子枪喷出的电子再通过环状阳极加速射向工件。当电子束撞击金属零件表面时,电子的动能转换为热能,便使其加热。
Electron beam technology has been widely used in smelting, welding and metal processing. Due to the high overall efficiency and high directivity of the electron beam, the electron beam can be used for heat treatment to treat parts that can not be processed by other heat treatment methods. However, the production costs of this method are still high at present, so it is seldom used in production practice. Electron beam quenching principle Electron beam is a high-energy electron flow. This high-energy electron flow is generated inside the electron gun by a direct thermal cathode (tantalum). The electrons ejected from the electron gun are accelerated toward the workpiece through the annular anode. When the electron beam impinges on the surface of the metal part, the kinetic energy of the electrons is converted into heat and it is heated.