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  ingot
     Direct Determination of As,Al,Bi,Cd,Cu,Fe,Pb,Se,Sb,Zn in Tin Ingot by ICP AES
     ICP-AES法直接测定锡中的As、Al、Bi、Cd、Cu、Fe、Pb、Se、Sb、Zn
短句来源
     Study on Formability of "Φ630/ΦN" Series Hollow Ingot of 2A12 Alloy
     2A12合金“Φ630/ΦN”系列大管成型性研究
短句来源
     Determination of Al,Ag,Bi,Cu,Cd etc.13 Elements in Tellurium Ingot by ICP-AES
     ICP-AES法测定碲中Al、Ag、Bi、Cu、Cd等13个杂质元素
短句来源
     Effect ofα-Phase on Bloom Surface Quality of 1Cr18Ni9Ti Stainless Steel 2.625t Ingot
     α-相对2.625t 1Cr18Ni9Ti不锈钢初轧坯表面质量的影响
短句来源
     Martensite heat resistant steel 1Cr20Co6Ni2WMoV was melted by a vacuum induction furnace with 22.5 kg ingot and forged to Φ16 mm bar.
     马氏体热强钢1Cr20Co6Ni2WMoV用真空感应炉冶炼,重22·5kg并锻成Φ16mm棒材。
短句来源
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  ingots
     The typical size of the square ingots was 125 × 125×90 and 50 × 50 × 70mm.
     方典型尺寸为125×125×90和50×50×70mm两种。
短句来源
     PRODUCTION OF 180 T ESR INGOTS FOR 600 MW TURBINE LP ROTORS
     用于制造600MW汽轮机低压转子的180t电渣生产
短句来源
     During the study of GCr15 bearing steel especially large forgings, pig irons containing low S & P are selected, refined by VHP、LF and VD furnaces to form 6.3 ton rectangle ingots.
     GC15轴承钢特大锻材的研制,选用低S、P的生铁,由VHP炉、LF炉、VD炉从初炼到精炼的冶炼工艺,形成6.3吨矩形;
短句来源
     Based on the CA-FE method, the CAE simulation of the solidification has been done for superalloy K4169 cylinder ingots and aeroengine superalloy K4169 castings. The solidification temperature field and the grain structure features and the microstructure have been get by coupling the simulation of macroscopic and microscopic view and combining the deterministic modeling and the stochastic modeling.
     本文主要基于CA-FE法,对K4169高温合金圆柱和某发动机高温合金铸件的凝固过程进行了CAE仿真,将宏观温度场模拟和微观晶粒组织模拟相耦合,将确定性方法和随机性方法相结合,得到K4169高温合金圆柱和某发动机高温合金铸件凝固过程的温度场、晶粒组织特征值和微观组织形貌。
短句来源
     This paper has researched as-cast microstructures and properties of 6063 Aluminium alloys melted with grain-refining aluminium ingots,contrasting with other grain-refining methods,such as with AlTi5,AlTi5B1 master alloys.
     采用细晶铝熔的6063铝合金与AlTi5B1、AlTi5中间合金细化的6063铝合金铸态组织性能进行对比研究。
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  “锭”译为未确定词的双语例句
     AN AUTOMATIC STACKER FOR HANDLING ZINC SLABS
     锌自动码堆机
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     High Speed Spindle for Ring Spinning
     环纺高速
短句来源
     An Investigation of Measuring Dynamical Yarn Twist on Ring Frame
     环纱动态捻度测定仪
短句来源
     A COMPARATIVE STUDY OF SOME FLUORESCENCE PROPERTIES OF SOYBEAN NUCLEUS AND CHLOROPLAST DNA-ETHIDIUM BROMIDE COMPLEXES
     大豆核染色体、叶绿体DNA-溴化乙复合体某些萤光特性的比较研究
短句来源
     The Theory and Pactice of Open-End Spindle Spinning
     捏纺纱的理论与实践
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  ingot
Superconducting MgB2 thick film has been prepared via hybrid physical-chemical vapor deposition method on Al2O3 (0001) substrate by using B2H6 and magnesium ingot as raw materials reacted from 730 to 830°C for 40 min under 20 to 30 kPa.
      
This paper deals with the problem of optimal cooling of a multiphase, continuously cast vertical cylindrical metal ingot in order to improve the characteristics of the solid phase.
      
For the purpose of determining the optimal values of heat removal, a direct extreme approach is applied based on calculating the gradient of the ingot quality criterion.
      
The criterion includes the effect of thermal stresses and of the degree of dispersity of dendritic structure on the quality of the cooling ingot.
      
The base material (Si) flow was produced by sublimation of a silicon bar cut from a single-crystal ingot.
      
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  ingots
The results of space and comparative ground experiments on the solidification of a Te80Si20 melt, including the formation of gas pores in the ingots obtained, are discussed.
      
Outside this concentration range, the ingots have a zonal structure: the peripheral region is formed by large baddeleyite crystals (at a ZrO2 content higher than 70 wt %) or corundum crystals (at a ZrO2 content lower than 30 wt %).
      
The rods were cut out from ingots of pure Si single crystals or from preliminarily doped crystals with various types of conductivities.
      
It is demonstrated by experiment that active IR imaging can be used to detect internal inhomogeneities in silicon ingots, the IR illuminator being any uniformly heated body.
      
It does not require any special preparation of ingots.
      
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The study of the distribution of hydrogen in steel ingots, despite its practical importance, has not received due attention from previous workers. Available experimental results are mainly fragmentary and non-systematic, and therefore many disputable opinions exist. Desirous of investigating this problem in greater details, the authors employed several annealed ingots of high chromium steels which were considered to be particularly suitable because they evolved little gas at room temperature and consequently...

The study of the distribution of hydrogen in steel ingots, despite its practical importance, has not received due attention from previous workers. Available experimental results are mainly fragmentary and non-systematic, and therefore many disputable opinions exist. Desirous of investigating this problem in greater details, the authors employed several annealed ingots of high chromium steels which were considered to be particularly suitable because they evolved little gas at room temperature and consequently the inherent difficulty to avoid the loss of hydrogen during sampling was, to a very large extent, overcome. For this purpose also, suitable apparatus capable of determining relatively small amount of hydrogen was constructed. The results obtained show that the hydrogen distribution in the annealed ingots follows a significant and regular pattern, thus dismissing certain misgiving conclusions based on contradictory results given by previous workers. Although the average hydrogen content of the anealed ingots amounted to not more than half that of the liquid stael, yet in certain parts of their interior the local hydrogen content was found to be higher than that of the liquid steal. This affirms the existence of hydrogen segregation in steel ingots. Moreover, from maps of hydrogen contour lines drawn for the ingots it can be seen that the regions of the highest hydrogen content roughly coincide with the last solification. Indeed, the effect due to certain external irregularities encountered in the course of solification is detectable rather from the hydrogen maps than by the usual method of macro-etching.In the longitudinal or the transverse direction of the annealed ingots, the general trend of hydrogen variation based on average hydrogen content is shown to be governed by the law of hydrogen diffusion. Further examinations reveal that the ingot structure and its internal porosity exert considerable influence upon the distribution. It is likely that hydrogen diffusion may be faster in columnar crystals than in equi-axed crystal regions. The presence of porosities in ingots seems to retard the removal of hydrogen. Such implications have not been sufficiently realized in the past.Based on the discussion of the experimental results, certain immunizing treatment suitable for preventing hairline cracks in certain types of steel is explained.

氢在鋼中的分佈是一个具有重要实际意义的问题,但在过去未得到研究工作者足够的重视.本文利用高铬型合金鋼在常温下不损失氢的特点,并建立了適宜的半微量定氢装置,对退火后的鋼中各个部位进行了定氢试验。结果证明,氢在鋼中的分佈是具有规律性的,指出了前人根据不全面的实验结果所提出的错误结论. 经过退火处理后的鋼,其平均含氢量虽然只及原来钢液含氢量的一半,伹在某些局部其含氢量反而高於钢液.这说明钢中确有氢的偏析现象存在.根据等氢曲线的分布情况来看,钢中氢偏析严重之处大致与最后凝固的部分相符.凝固过程中钢一面受到中注管散热的影响,也能从等氢曲线的分佈情况反映出来,而这种影响从低倍检验结果来看是没有能够觉察到的. 从氢含量变化的平均趋势来看,退火钢中的氢分佈不管是沿横方向抑是沿縱方向都服从於扩散规律,伹必须考虑到结晶构造和内部缺陷的影响.譬如,沿柱状晶轴方向的氢扩散似乎比等轴晶区域内的氢扩散速度大,而钢中心疏松对於去氢则起阻碍作用,过去对於这些方面的了解是不够的. 根据上述结果的分析讨论,本文还为某种防...

氢在鋼中的分佈是一个具有重要实际意义的问题,但在过去未得到研究工作者足够的重视.本文利用高铬型合金鋼在常温下不损失氢的特点,并建立了適宜的半微量定氢装置,对退火后的鋼中各个部位进行了定氢试验。结果证明,氢在鋼中的分佈是具有规律性的,指出了前人根据不全面的实验结果所提出的错误结论. 经过退火处理后的鋼,其平均含氢量虽然只及原来钢液含氢量的一半,伹在某些局部其含氢量反而高於钢液.这说明钢中确有氢的偏析现象存在.根据等氢曲线的分布情况来看,钢中氢偏析严重之处大致与最后凝固的部分相符.凝固过程中钢一面受到中注管散热的影响,也能从等氢曲线的分佈情况反映出来,而这种影响从低倍检验结果来看是没有能够觉察到的. 从氢含量变化的平均趋势来看,退火钢中的氢分佈不管是沿横方向抑是沿縱方向都服从於扩散规律,伹必须考虑到结晶构造和内部缺陷的影响.譬如,沿柱状晶轴方向的氢扩散似乎比等轴晶区域内的氢扩散速度大,而钢中心疏松对於去氢则起阻碍作用,过去对於这些方面的了解是不够的. 根据上述结果的分析讨论,本文还为某种防止钢中白点的热处理方法提供了理论上的解释.

Certain defects associated with the presence of stratified inclusions in mildsteel plates of medium thickness manufactured by Anshan steel works were inves-tigated.It has been found that the nature and the appearance of such inclusionscan be classified into three different types in accordance with the different positionsof the rimming ingots from which the plates were being made.The origin of thedifferent types of inclusions has been discussed in the light of the works data andcertain suggestions have been put...

Certain defects associated with the presence of stratified inclusions in mildsteel plates of medium thickness manufactured by Anshan steel works were inves-tigated.It has been found that the nature and the appearance of such inclusionscan be classified into three different types in accordance with the different positionsof the rimming ingots from which the plates were being made.The origin of thedifferent types of inclusions has been discussed in the light of the works data andcertain suggestions have been put forward with a view to minimizing the occurren-ce of such inclusions.

本文研究了鞍山钢铁公司生产的沸腾钢中板所含的夹层,发现它们可以按照钢的不同部位区分为三种类型。权据夹层的分析结果和生产统计资料,讨论了这三利夹层的生成原因并对它们的防止办法提出了建议。

In the manufacture of stainless steel of the high chromium type, axial

在高铬不锈钢的生产中,影响质量最严重的是钢中的轴心裂纹和钢材中的髪纹。本文的研究结果指出,这两种缺陷属于同一来源,没有轴心裂纹的钢在锻成钢材后也没有髪纹。钢中轴心裂纹是在凝固过程中形成的,因而冷凝条件对它有影响。利用耐火材料做模可以得到内部坚实的钢,减小模模壁厚度,增大钢圆锥度或降低浇铸温度等只能减轻而不能完全消除裂纹。熔炼过程中的脱氧方法对钢中夹杂物的性质和形状分布有影响。改善脱氧方法并采用薄模浇铸,可以大大地减少轴心裂纹和髪纹,从而提高钢的收得率。我们认为夹杂物的性质、多寡及其形状分布可能对钢液的流动性和表面张力有影响;改善钢液的流动性或减小其表面张力可以促进钢液的充填性能,从而弥补凝固过程中由于冷凝收缩而产生的缺陷。在一定压力以下的真空中熔化和浇铸可以得到内部良好的钢。通过真空熔铸所得到的钢,其柱状晶区大小缩小,而柱状晶的缩小对避免钢中轴心裂纹有利。得到这种效果的原因可能是多方面的,真空有去气作用,在真空中钢的凝固散热与在一般情况下有所不同,真空作用使...

在高铬不锈钢的生产中,影响质量最严重的是钢中的轴心裂纹和钢材中的髪纹。本文的研究结果指出,这两种缺陷属于同一来源,没有轴心裂纹的钢在锻成钢材后也没有髪纹。钢中轴心裂纹是在凝固过程中形成的,因而冷凝条件对它有影响。利用耐火材料做模可以得到内部坚实的钢,减小模模壁厚度,增大钢圆锥度或降低浇铸温度等只能减轻而不能完全消除裂纹。熔炼过程中的脱氧方法对钢中夹杂物的性质和形状分布有影响。改善脱氧方法并采用薄模浇铸,可以大大地减少轴心裂纹和髪纹,从而提高钢的收得率。我们认为夹杂物的性质、多寡及其形状分布可能对钢液的流动性和表面张力有影响;改善钢液的流动性或减小其表面张力可以促进钢液的充填性能,从而弥补凝固过程中由于冷凝收缩而产生的缺陷。在一定压力以下的真空中熔化和浇铸可以得到内部良好的钢。通过真空熔铸所得到的钢,其柱状晶区大小缩小,而柱状晶的缩小对避免钢中轴心裂纹有利。得到这种效果的原因可能是多方面的,真空有去气作用,在真空中钢的凝固散热与在一般情况下有所不同,真空作用使钢液的性质发生变化等等。虽然,上述几方面的理论基础还有待于进一步研究,但从目前实际效果来说,真空熔化和浇铸应该认为是提高不锈钢质量的一个重要发展方向。

 
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