查询词典 nitrided

The nitrided layer formed on the surface of stainless steel consists of a nitrogen supersaturated austenite which is maintained to very high nitrogen concentrations and is of high hardness and good corrosion resistance.

与一般离子渗氮不同的是，这些新方法是在真空度较高、温度较低的条件下进行渗氮，可以充分地利用离子的能量提高渗氮效率。

Enhanced threshold voltage shift and transconductance reduction were observed after CHE stress for the nitrided devices.

在通道热电子压迫测试之后，可以发现更严重的临界电压偏移与转导值降低现象。

We have characterized the microstructure, wear and corrosion resistances of the nitrided samples by a variety of techniques so as to have a comprehensive understanding on the nitriding behaviors of this material.

作为比较，我们对AISI 3I6L奥氏体不锈钢也进行了相同的处理，此外还以Inconel 690为靶材利用磁控溅射在Ar-N〓混和气中合成了γ〓相薄膜。

Stop-off designated areas, not to be nitrided, shall be accomplished by use of .002 minimum thickness fine grain copper plating per AMS 2418 or by material removal after nitriding or mechanical masking.

无需渗氮的指定分界区域，应按AMS2418用厚度不小于。002的细颗粒进行镀铜，或于渗氮或机械掩蔽后进行。

Based on the practice of the use of φ95mm subsurface sucker rod pump in Shengtuo Oilfield in recent years, the causes of the failure of the pump are analyzed, and relevant precautions are put forward:(1)selecting oil wells with sufficient fluid supply for pumping;(2)under the condition of the pump efficiency being the same, the submergence depth of the pump being somewhat larger than that of the small pump, and 450～500m being feasible;(3)adopting Grade H ultrahigh-strength rod string and fixing a sinker bar at the bottom of the rod string;(4)selecting long stroke and low pumping speed, and more than 5m stroke and less than 6min-1 pumping speed being recommended;(5)adopting zirconium oxide valve ball and seat ＋ spray welded plunger ＋ nitrided barrel.

根据胜坨油田近几年采用φ95mm有杆抽油泵提液的实践，分析了造成这种抽油泵失效的原因，包括与其配套的脱节器失效、抽油杆断脱、泵漏、电动机不配套和生产管理不善等。为增强泵的提液能力和工作可靠性，提出5 项预防措施：(1)选择有充足供液能力的油井；(2)在保持相同泵效的情况下，泵的沉没度应略大于小泵，推荐按450～500m设计；(3)采用H级超高强度抽油杆柱，并在杆柱底部配置一定重量的加重杆；(4)采用长冲程、低冲次的参数匹配，推荐光杆冲程大于5m，冲次小于6min-1；(5)为提高泵筒、活塞和阀座的防腐耐磨性，推荐采用&氧化锆阀球和阀座+喷焊柱塞+氮化泵筒&的结构形式。

The tendency of spalling of nitrided layer of an austenitic heatresistant steel 4Cr14Ni14W2Mo has been studied experimentally.

Kindlimann和Ansell认为，氮化表面上Fe或Ni-Fe的氮化物增到一定厚度时将产生&白亮层&，冷却时可能剥落。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。