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7800米~3/362氮氢气压缩机是二万五千吨合成氨化肥设备中的主要设备,其中各种构件及零件的技术要求很高,尤其对曲柄轴的要求更高(见图1),因为它承担着1800千瓦的动力传递。因此除了要求具有高的机械性能、耐疲强度和尺寸精度外,更须有高的表面光洁度和轴颈的耐磨性。对这种尺寸大而又形状复杂的零件,要在重型车床上加工到上述要求的光洁度是比较难的;尤其是立
7800 m ~ 3/362 Nitrogen and Hydrogen Compressor is the main equipment of 25,000 tons of synthetic ammonia fertilizer equipment, of which the technical requirements of various components and parts are very high, especially for the crankshaft (see Figure 1) Because it carries 1800 kilowatts of power transmission. Therefore, in addition to requiring high mechanical properties, fatigue resistance and dimensional accuracy, but also have to have a high surface finish and journal wear resistance. For such a large and complex shape of the parts, heavy lathe machining to the above requirements of the finish is more difficult; especially legislation