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。
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.
通过对比研究了合金元素锌和镍对铜基粉末冶金刹车材料性能的影响规律。
The effects of alloy elements (Zn, Ni) on the properties of copper-based brake materials were investigated.
通过对比研究了合金元素锌和镍对铜基粉末冶金刹车材料性能的影响规律。
The effects of alloy elements (Zn, Ni) on the properties of copper-based brake materials were investigated.
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