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cemented carbides
相关语句
  硬质合金
     Sintering Features of Ultra Fine Cemented Carbides WC-10Co-0.8 (VC/Cr_3C_2)
     超细硬质合金WC-10Co-0.8(VC/Cr_3C_2)的烧结特征
短句来源
     Structure and Performance of Ultra Fine Cemented Carbides WC-10Co-0.8 (Cr_3C_2/TaC)
     超细硬质合金WC-8Co-0.8(Cr_3C_2/TaC)的组织与性能
短句来源
     Development and Application of YJ2.1,YJ1.1 Cemented Carbides for Mine Drilling
     YJ2.1、YJ1.1矿山凿岩硬质合金的开发与应用
短句来源
     The results indicate that the properties of the WC 8(Fe/Ni/Co) R cemented carbides are comparable to those of the WC 8Co alloys.
     结果表明 :WC- 8(Fe/Ni/Co) R硬质合金的性能可以达到 YG8的性能标准。
短句来源
     EFFECTS OF TaC 、Cr_3C_2 ON PROPERTY ANDMICROSTRUCTURE OF WC-Co CEMENTED CARBIDES
     TaC、Cr_3C_2对WC-Co硬质合金组织和性能的影响
短句来源
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  “cemented carbides”译为未确定词的双语例句
     STUDY ON WC-20 %Co CEMENTED CARBIDES ADDED WITH ZrO_2
     WC-20%Co添加陶瓷颗粒ZrO_2的试验研究
短句来源
     The additions of grain growth inhibitors Cr3C2/TaC make cemented carbides alloy densification decreasing in 1400℃. Full densification of the ultra fine WC-8Co-0.8wt% (Cr3C2 /TaC) green compacts need 60 minutes in sintering temperature.
     Cr3C2/TaC在很大程度上影响了合金烧结时的致密化,WC-8Co-0.8wt%(Cr3C2/TaC)压坯在1400℃下完全致密化需要的烧结时间为60分钟;
短句来源
     Investigation on the Mechanical Properties and Chemical Stability of WC Fe/Ni/Co Cemented Carbides
     WC-Fe/Ni/Co材料的物理力学性能和化学稳定性研究
短句来源
     In production quality control, the K1c of WC-Co cemented carbides products can be evaluated non-destructively by use of above mentioned relations after determining the carbon content in alloy by specific saturation magnetization 4πσ
     控制生产质量中,配合比饱和磁化强度4πσ(A·m2/kg)测定合金的碳含量,利用上述关系式可对WC-Co合金成品的K1c进行无损评估。
短句来源
     According to the analysis results of XRD, the surface layer of WC-1 3Fe-3Co-4Ni cemented carbides chemically etched consisted of W after Ar-H2 plasma de-cartonizing and WC~ W~ W2C after Ar-H2-CH4 plasma carbonizing.
     经Ar-H_2-CH_4等离子体渗碳20min后的主要物相为W、WC、W_2C(组织中有残留W层)。
短句来源
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  相似匹配句对
     Sinter of Ultrafine Cemented Carbides
     超细WC-Co硬质合金的烧结
短句来源
     Nanosized Technology and Cemented Carbides
     纳米技术与硬质合金
短句来源
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  cemented carbides
In cemented carbides, important mechanical properties are influenced by the carbide grain size distribution.
      
The characterization of cemented carbides by automated image analysis
      
The single-crystal thermal conductivity behavior of TiC and WC is used to interpret the measured K values for cemented carbides TiC/Ni-Mo and WC/Co through a broad temperature range.
      
A thermodynamic evaluation of the cubic carbide formers hafnium (Hf) and zirconium (Zr) in cemented carbides has been done.
      
Cemented carbides consist of hard carbide particles of hexagonal WC and often also of cubic carbides cemented together in a binder consisting of mainly cobalt (Co).
      
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It is important in practice to select an efficient tool material to machine elements made of hardened steel. A series of experiments on cutting performances, including wear and fracture of the composite ceramic tool developed by our Institute and some of newly developed cemented carbides at home were made. The opitimal tool geometry of different tool materials and empirical formula of wear of ceramic tool have been proposed. Experiments have shown that tool life by wear of ceramic tool is far greater than...

It is important in practice to select an efficient tool material to machine elements made of hardened steel. A series of experiments on cutting performances, including wear and fracture of the composite ceramic tool developed by our Institute and some of newly developed cemented carbides at home were made. The opitimal tool geometry of different tool materials and empirical formula of wear of ceramic tool have been proposed. Experiments have shown that tool life by wear of ceramic tool is far greater than the cemented carbides so far developed, especially in the range of high cutting speed. It is believed that our ceramic tool is more efficient and may be used in fine and finish turning hardened steels.Its tool life by fracture in interrupted operation, however, is much less than the later and could only be used in finish turning hardened steels with smaller cutting area. All these experiments indicate that the method presented for testing cutting performane with the curve of tool life by fracture may be used to evaluate the cutting abiliiy of new tool materials in interrupted conditions, because of its simplicity and reliability.

生产中有许多淬硬纲件需要切削加工。本文系统试验研究了我院研制成功的组合陶瓷刀和国内几种新牌号硬质合金加工淬硬纲的切削性能,包括磨损寿命和破损寿命。通过研究提出了它们的合理几何形状,和陶瓷刀的磨损量与切削用量之间关系式,可供推广使用参考。陶瓷刀磨损寿命比新刀片高很多倍,特别在高切削速度范围更突出。它适于精车和半精车淬硬纲。断切时,陶瓷刀的破损寿命与新刀片相比,差距较大,只适于小切削截面的精车。通过试验表明,本文用破损寿命曲线试验刀具材料切削性能的方法,比较简单可靠,可作为评定新刀具材料切削性能之用。

This paper concisely describes the good results gained in making foils of cemented carbides for TEM by ion milling technique in the study of micro-structure. Owing to the application of the ion milling technique, the problem to make the foil of cemented carbides made of hard and brittle compound phases has been solved, usually it is very difficult to make such foils by normal electrolytic polishing method. Thus very rich and distinct microstructures such as dislocation configuration, stacking fault...

This paper concisely describes the good results gained in making foils of cemented carbides for TEM by ion milling technique in the study of micro-structure. Owing to the application of the ion milling technique, the problem to make the foil of cemented carbides made of hard and brittle compound phases has been solved, usually it is very difficult to make such foils by normal electrolytic polishing method. Thus very rich and distinct microstructures such as dislocation configuration, stacking fault structure and distribution of the second phase, etc. in the alloys have been observed by TEM and the microstructure study in the cemented carbide field has been developed in our country.

本文简要地介绍了在研究硬质合金微观结构时,应用离子薄化技术制取供透射电子显微镜用的薄膜所获得的良好效果。由于离子薄化技术的采用,解决了用电解抛光方法难于解决的,对这一既硬又脆的复相合金制样的难题,从而用透射电镜观察到了该合金中非常丰富而清晰的微观结构,如位错组态,层错结构,以及第二相的分布等等,开展了我国硬质合金领域的微观研究。

The observation,electron diffraction and diffraction contrast on the microstructure and defo-rmation fracture process of WC in cemented carbides,such as YG8,YG11,YG12 and H_(12)S_2,werecarried out with TEM. It is indicated that there are varieties of microstructure in WC grains,suchas dislocation tangling with high density,stacking faults,interface dislocation,superdislocations,small-angle grain boundry and dislocation networks formed by the interaction of dislocations. Thispaper mainly deals with the...

The observation,electron diffraction and diffraction contrast on the microstructure and defo-rmation fracture process of WC in cemented carbides,such as YG8,YG11,YG12 and H_(12)S_2,werecarried out with TEM. It is indicated that there are varieties of microstructure in WC grains,suchas dislocation tangling with high density,stacking faults,interface dislocation,superdislocations,small-angle grain boundry and dislocation networks formed by the interaction of dislocations. Thispaper mainly deals with the behavior of the microstructure change in WC in the case of that thealloys are subjected to a stress,and the strain and fracture occurs. The evidence of transgranularfracture for the alloys is provided and the explanation would be made from the point of view ofcrystallography.

用透射电子显微镜对YG8、YG11、YG12和H_(12)S_2等几种硬质合金中WC的微观结构和形变断裂过程进行了观察、电子衍射和衍衬分析。结果表明,合金中WC晶粒内部有着非常丰富的微观结构,例如,高密度的位错纠缠、堆垛层错、界面位错、超位错、小角度晶界,以及由位错交互作用形成的位错网络等。本文着重探讨了,当合金承受应力,产生应变和断裂时,WC晶内微观结构变化规律,这为合金穿晶断裂提供了实验依据,并试图从晶体学的角度给予解释。

 
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