您要查找的是不是：
- vacuum nitriding process 真空渗氮工艺
- What is the most often used heat treatment method? Gas nitriding or vacuum nitriding? Post tampering needed? How many times? 冲裁模材料常用的热处理为何?渗氮法?真空渗氮法?之后须回火吗?几次?
- The article introduces the structure feature and heat treatment technology of a low vacuum nitriding furnace for treating axle workpieces. 本文介绍了处理细长轴件的低真空氮化炉的结构特点和热处理工艺。
- The company's nitriding process is divided into:gas soft-nitriding,MGN and gas rigidity-nitriding. 公司的渗氮工艺分为：气体软氮化、MGN和气体硬氮化。
- The experimental results showed that the presence of RE could obviously accelerated nitriding process of LD steel. 结果表明:稀土对LD钢的氮化过程有明显的催渗作用;
- The paper makes a primary approach to a two big problems on the long period and the heavy brittleness resulting from gas nitriding process. 针对气体渗氮工艺存在的周期长和脆性大两个问题进行了初步的探讨。
- Gas nitriding process is graduately replaced by ion nitriding process because of taking long time and expending a large amounts of gas. 气体氮化发展由来已久,因处理时间长,消耗气源而逐渐被离子氮化方法所代替。
- The crankshaft is treated by good nitriding process, which can meet the strength requirement for Euro 2 emission level (max. cylinder fire pressure 130 bar). 曲轴采用良好的氮化处理工艺,可以满足欧2排放水平(130 bar的气缸最高爆发压力)的强度需要;
- This paper expounds several main links of ion nitriding process on piston top.It offers some of useful reference to ionitriding on high precision and complex parts. 阐述了活塞顶离子氮化工艺的主要环节，为复杂高精度零件的离子氮化提供了有益的参考。
- An artficial intelligent neural network modul(ANNM)was built on the basis of experimental data of ion nitriding to predict the effects of ion nitriding process. 以离子渗氮为例,建立了渗层性能预报神经网络模型;
- Primary Study on Vacuum Nitriding 真空渗氮初探
- Effect of reaction of rare earth to oxygen o n catalysis effect in plasma nitriding process catalyzed by rare earth has been s tudied with X-ray diffractometer and scanning electron microscopy. 利用X射线衍射仪和扫描电镜研究了稀土催渗离子渗氮过程中，稀土与氧之间的作用对催渗效果的影响。
- Vacuum nitriding furnace of deep pit type and its technology 深井式真空氮化炉及工艺
- Carburizing and nitriding processing microcomputer control system is introduced, and heat treating technological tests are presented. 介绍渗碳、氨化过程工艺参数的微机控制系统以及热处理工艺考核试验。
- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
- Abstract A method for the preparation of silicon nitride powder by a direct nitridation process based on fluidization technology is described. 摘要 提出了一种基于流态化技术，利用硅粉直接氮化制备氮化硅粉的新工艺。
- A method for the preparation of silicon nitride powder by a direct nitridation process based on fluidization technology is described. 提出了一种基于流态化技术,利用硅粉直接氮化制备氮化硅粉的新工艺。
- By altering the furnace pressure rapidly, baneful gases, such as oxygen and vapour, could be eliminated from the chamber.Therefore, cementite and nitriding processes are accelerated. 改变炉压可迅速排除炉膛内氧、水蒸气等有害气体，可加速渗碳、渗氮过程。
- His wife's death left him a vacuum in his life. 他妻子的去世使他的生活变得空虚。
- Her husband's death left a vacuum in her life. 她丈夫的死使她的生活变得空虚。
