The composed films which was electroplated with Ni P and Ni W P was studied by the comparative method.
主要对比研究了镍磷镀膜、镍钨磷镀膜以及镍磷和镍钨磷双层复合镀膜的耐蚀性能。
The method of measuring c, s, p, Mn, Si, Cr, Ni, Mo, V, W, ti, Nb, Al element content by DV-4 photoelectric spectroscope on one condition is introduced.
介绍了应用DV - 4光电光谱仪，仅用一种测定条件，测定高合金钢中碳、硫、磷、锰、硅、铬、镍、钼、钒、钨、钛、铌、铝元素的含量的方法。
The paper present the new developments of Ni-W coat, Ni-W-B coat, tungsten composite coat and tungsten brush coat etc.
介绍了镍钨镀层、镍钨硼（磷）镀层、含钨复合镀层和含钨电刷镀镀层等的研究与开发的近期进展。
There exist large Au, Cu, Pb-Zn, Ni, rare metals, rare earth, Sn, Mo, V, Ti, W and some other types of ore deposits.
具有大型、 超大型规模的矿产为金、铜、铅锌、镍、稀有金属、稀土金属、锡、钼以及钒、钛、钨等。
The methods and processing flowsheet of synthesize recovery of W, Al, Ni fron waste catalyst are studied.
研究了从含钨、镍废催化剂中回收钨、铝、镍的方法及生产工艺流程。
Compared to rare earth high Cr-Ni-N, cost falls 60%; Compared to W-Cr alloy, cost falls 70%.
与稀土高铬镍氮相比，成本降低60%，与钨铬合金相比，成本降低70%。
Effective welding of heterogeneity metals was of great pragmatic importance in modern hi-tech area. W plate and Ni thread were joined by using resistance spot-welding.
异种金属的有效连接在高新技术领域具有实际意义，采用电阻点焊方法焊接稀有金属钨片和镍丝。
Abstract: The paper studies 4 adding-ways for Ni added to W-base high-density alloy.
摘要：对镍加入到钨基高比重合金中的四种方式进行了研究。
Abstract: The paper studies 4 adding-ways for Ni added to W-base high-density alloy.
摘要：对镍加入到钨基高比重合金中的四种方式进行了研究。
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