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- The third ways of making stencil is electroform. Hole forming by the way of nickel deposit onto the copper cathode. 制作模板的第三种工艺是电铸成型。在这个工艺中,镍沉积在铜质的阴极心上以形成开孔。
- Copper nickel. Welding and surfacing of copper nickel and copper nickel to steel. 镍铜,用于镍铜、镍铜与钢的焊接与堆焊。
- Copper nickel, good machinability and bad crack resistance. Repair welding of sand hole and gray cast iron machined surface subject to no load. 镍铜,易加工,但抗裂性较差。不受力的灰铸铁加工面及砂眼补焊。
- The new concept,internal boronization,was given on this theme.These series of copper nickel alloys were internally boronized. 在提出了内硼化的概念之后,对三种含镍量不同的铜镍合金进行了内硼化处理。
- Frames were made from an alloy of copper nickel &zinc, polished and sometimes lacquered. Towards the end of the war some were zinc only. They were dull. 勋章的外框是由铜镍合金及锌制成,并经过抛光和涂漆。在战争的最后阶段,有些勋章只用锌,勋章看起来比较单调。
- Particularly suitable for the joining and overlay welding of copper nickel such as machinery,desalting of seawater,ship-building,oil refinery,and food processing industries. 适用于铜镍合金的焊接和堆焊。如化工设备、海水淡化、海洋结构、造船、石油精炼、食品工业以及耐蚀装置和容器等。
- The two body abrasion wear characteristic of Mn copper nickel alloy matrix cast tungsten carbide composite has been studied using high chromium cast iron as a reference material. 以高铬铸铁为参考材料,研究了真空熔铸法制备的锰白铜基铸造碳化钨复合材料的二体磨料磨损特性。
- Adhesion between nickel deposit and decorative chromium deposit, decorative chromium deposit and hard chromium deposit was impr oved by strike plating, through rational arrangement of anode plate. 合理布置阳极板实现冲击镀以提高装饰铬层与镀镍层,硬铬层与装饰铬层间的密着性。
- Causes for defective nickel deposits were discussed and solutions were presented. 探讨了镀镍层常见缺陷的原因并提出了解决方法。
- An effective way to reduce phosphorus content in electroless nickel deposits is to use appropriate complexing agents. 降低化学镀镍镀层磷含量的主要方法是选择合适的络合剂。
- copper nickel antimony lead bronze 铜镍锑铅合金
- The mechanism of electroless nickel deposition in sodium hypophosphite bath is discussed. 探讨了次亚磷酸钠体系化学镀镍沉积机理。
- Pure nickel deposits were obtained from the traditional Watt nickel plating bath by pulse electroplating . 采用传统的瓦特镀液通过脉冲电镀制得纯镍镀层。
- Proper wetting agent content can accelerate the nickel deposition rate, make the grains finer, and prevent the formation of pinholes obviously. 适量的润湿剂对镀层的沉积具有促进作用,对防止针孔的生成及细化晶粒具有明显的效果。
- Blackening processes for electroless nickel deposits are reviewed. Factors influencing the shades and properties of the layer are described. 综述了化学镀镍层黑化工艺方法,影响膜层黑度的因素以及黑膜的性能特点。
- The catalytic activity and demethylation effect of nickel deposited samples is closely related to the method for preparation... 沉积镍沸石经高温水蒸气处理后,裂化产物中的甲烷增多。
- Recent progress in the research on the ways and forms of nickel deposition on FCC catalysts as well as their influence on catalytic cracking process are reported. 本文总结了关于流化催化裂化(FCC)催化剂上镍沉积方式、形态和镍沉积对催化裂化反应影响的研究成果。
- I think I'd like a deposit account. 我想要开个定期存款帐户。
- Triethanolamine was considered as a desirable complexing agent to reduce phosphorus content in electroless nickel deposits applied on polyurethane foam substrate. 对于以聚氨酯海绵为基体的化学镀镍,研究认为,三乙醇胺是较好的选择。
- Jingerquan Hulu copper nickel conbalt polymetallic ore 镜儿泉葫芦铜镍钴多金属矿