The article presents the technology of hardening the fingers of the reapers of combine harvesters by electrospark processing. To strengthen the cutting surfaces of the fingers, it is recommended to use an amorphous alloy grade 84KXSR. The operational tests presented in the work showed that wear and dulling of both serial products and experimental parts with electric spark coatings is characterized by two stages: running-in and natural wear. The running-in occurs during the running time of the fingers in 1 ha. The results of operational tests showed that the application of a wear-resistant electrospark coating of amorphous alloy grade 84KXSR with a thickness of 30 μm and a track width of 2 mm on the cutting surfaces of the fingers of the headers of grain harvesters makes it possible to increase the resource from 1.4 to 2 times.

文章介绍了电火花加工硬化联合收割机收割机手指的技术。为了加强手指的切削表面，建议使用非晶合金牌号 84KXSR。工作中的操作测试表明，带有电火花涂层的系列产品和实验部件的磨损和变钝都具有两个阶段：磨合和自然磨损。磨合发生在手指在 1 公顷的运行时间内。运行试验结果表明，在谷物收割机割台指的切割面上应用厚度为 30 μm、轨道宽度为 2 mm 的非晶合金牌号 84KXSR 耐磨电火花涂层，使其成为可能将资源从 1.4 增加到 2 倍。