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- The invention relates to a manufacturing method of a titanium nitride layer as well as an apparatus thereof. 本发明涉及一种氮化钛层的制造方法及其装置。
- The nitride layer was formed on the surface of ductile cast iron by gas multi-element penetration, and the phase structure and section appearance of nitride layer were analyzed by the XRD and SEM. 球墨铸铁经过气体多元共渗后可在其表面形成氮化层,通过X射线衍射和扫描电镜对渗层的相结构与形貌进行分析。
- Microstructure Analysis of Powder Sintering Nitride Layer 粉末烧结钢氮化层微观结构分析
- CMOS Devices Isolated by an Implanted Silicon Nitride Layer 离子注入氮化硅隔离的CMOS器件
- The result shows that the porosity of nitrided layer is due to the over concentration of CNO- in the salt bath. 试验结果表明，渗层疏松主要是由于盐浴内CNO－浓度过高所致；
- Keywords sdt bath nitrocarburizing;nitride layer loose layer; 盐浴氮碳共渗;化合物层;疏松层;
- This paper deals with the kinetics of the ion nitrided layer growth for armco iron, steels 45, 40Cr, 42CrMo and 38CrMoAl. 本文研究了在不同离子渗氮工艺参数下,纯铁、45钢、40Cr、42CrMo及38CrMoAl钢等五种材料的离子渗氮层长大动力学,建立了长大动力学的数学模式。
- The fracture failure would occur in nodular iron crankshafts due to the over-shallow and non-uniform thickness of nitriding layer. 球铁曲轴常常由于渗氮层薄、质量不稳定而引起断裂失效,本课题研究了球铁曲轴加氧渗氮工艺。
- Reducing discharge interval and increasing electric field intensity could increase the hardness and depth of nitriding layer markedly. 在本工艺条件下，适当减小放电间隙，增大电场强度，可以明显提高渗层的硬度和深度。
- The orient has been playing an active role in the world economy. 亚洲一直在世界经济中发挥积极作用。
- He is an active member of the school's stamp club. 他是学校集邮俱乐部的一名活跃会员。
- The results of experiments showed that the Nb can raise the depth of diffusion zone,hardness,wear resistance,strength and toughness of the nitriding layer of the matrix steel. 实验结果表明，铌能增加扩散层深度、硬度及耐磨性，提高渗层的强韧性。
- An active volcano may explode at any time. 活火山随时都有可能爆发。
- Recent progress is presented regarding the research of structure, process, property, failure and strengthening mechanism of the composite "nitrided layer PVD coating". 摘要介绍了“渗氮／物理气相沉积(PVD)”复合涂层在涂层结构设计、工艺与性能、失效与强化机制等方面研究的最新进展。
- Is it wise to engage in active sports at your age? 我这样的年纪积极参加体育活动是否明智？
- It is proposed that cooling ways greatly influence the hardness of nitrided layer,and the content of CNO - within the range of fluctuation has little effect. 发现盐浴渗氮层的硬度受冷却方式的影响很大 ,而CNO-浓度在一定范围变化则影响很小 ,钒的渗入有利于改善渗层硬度。
- She was active as a left-winger in the party. 她是党内积极的左翼分子。
- He was very active and rode down several horses. 他劲头很大，一连骑了好几匹马。
- She plays an active part in local politics. 她积极参与地方政治活动。
- The steel market will continue to be active. 钢材市场将会继续保持活跃。
