第四讲　电刷镀技术在设备维修中的应用 (续 )　　二、应用举例1 电刷镀技术维修某进口大型化工设备齿轮轴该齿轮轴为进口大型化工设备减速器主动齿轮轴 ,材料为3 5CrMo合金钢。修复原因是齿轮轴加工精度低 ,形位误差超差 ,待修复部位为 φ13 0mm轴段存在 0 .0 9mm的圆度误差。 Lecture 4 Application of Brush Plating Technology in Equipment Maintenance (Continued) II. Application Examples 1 Brush plating technology to repair the gear shaft of a large-scale imported chemical equipment The gear shaft is the main gear for the import of large-scale chemical equipment gear reducer. The material is 3 5CrMo alloy steel. The reason for the repair is that the machining accuracy of the gear shaft is low, the shape position error is out of tolerance, and the circularity error of 0 .09 mm exists in the shaft section to be repaired at φ13 0mm.