The electroless Ni plating on Fe-based powder metallurgy articles was continuously carried out with pretreatments of pore sealing by immersing in zinc stearate in vacuum and ultrasonic cleaning.

• 采用真空硬脂酸锌浸渍封孔及超声波清洗前处理,对铁基粉末冶金件连续化学镀镍。