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- 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。
- depth of nitrided layer 渗层深度
- The hardness gradient, depth , microstructure and phases of nitrided layers were measured with Microhardness Apparatus, Microcopy and X-ray diffractometer . 利用显微硬度计、金相显微镜和X射线衍射仪测定了渗氮层的硬度梯度、层深、显微组织和相组成。
- 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;
- 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。
- 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。
- This creature lives in the depth of the ocean. 这种生物生活在海洋深处。
- The young man dived to a depth of 40 feet. 那个青年人潜到四十尺的深度。
- The depth of the universe is immeasurable. 宇宙无限深广。
- Depth of first layer of soil profile. 土壤第一层厚度。
- Measurement of the depth of large bodies of water. 海洋测深学,海洋测深术测量大水域的深度
- 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。
- The depth of water in this river is half that in that river. 这条河河水的深度是那条河河水深度的一半。
- These creatures live in the depth of the Pacific Ocean. 这些生物生活在太平洋的海底。
- 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。
- Strange creatures live in the profound depth of the ocean. 在大洋深处生活著一些奇怪的生物。
- We have expressed the depth of our gratitude to them. 我们向他们表示了深切的谢意。
- The evaluation of the impression made by Vickers pyramid and the rigid ball indentation method were used to determine the brittleness of nitrided layers of several industrial steels at various nitriding temperatures. 采用维氏硬度压痕法和刚性球体压入法测试了几种工业用钢在不同氮化温度下氮化层的脆性,并对影响表层脆性的因素进行了分析。
- Nobody knew the depth of her love for the child. 谁也不知道她对这孩子的爱有多深。
- depth of the nitrided layer 氮化层深度
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries