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- 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。
- 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;
- It is a leap in the process of cognition. 这是认识过程的一次飞跃。
- A product of a document copying process. 文件复制过程的一种产品。
- Phase changes at different temperatures and holding time during the carbothermal reduction nitridation process for synthesizing SiAlON from low grade bauxite were researched by XRD,SEM and EDS. 采用XRD、SEM和EDS等手段 ,研究了低品位铝土矿碳热还原氮化合成SiAlON过程的相变。 结果表明 :130 0℃开始氮化 ,形成Si2 N2 O和X SiAlON ;
- The new process extracts oil from shale. 这一新过程可从页岩里提炼出石油。
- 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。
- The nitride on oxide layers remains intact. 氧化物表层上面的氮化物保持原状不动。
- The project is not finished but is till in process. 该项工程尚未结束，仍在进行之中。
- 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。
- The process of applying and rubbing in an ointment. 涂油使用以及用油膏擦的过程
- Comparative study on nitride and phosphide . 因此，较大的还原气空速易于形成较高的催化剂比表面积。
- The act or process of pushing or thrusting out. 推，掷推出或掷出的行为或过程
