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   material 在 金属学及金属工艺 分类中 的翻译结果: 查询用时:0.369秒
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material
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  材料
    1.Molecular Dynamics Simulation for the Vibration Characteristics of Nonlinear Optical Material BBO 2.Reliability Research on Flip Chip Electronic Packaging
    1.非线性光学材料BBO振动特性的分子动力学模拟\2.电子封装倒装焊的可靠性研究
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    The Interface Element Method of Temperature Field And Thermal Deformation About Material Composite Casting-Roll And Its Study on Visual Simulation
    材料复合型铸轧辊温度场和热变形的界面元方法及其仿真研究
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    Study for Bearing in Magnetron Sputtering Deposition Technology and Mechanical Behavior of the Material
    轴瓦磁控溅射镀膜技术及其材料力学性能研究
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    Investigation on the Austenitic Welding Material with Low Cr and High Mn Contents
    一种低铬高锰奥氏体钢焊接材料的研究
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    Study on the Nano-polishing Metallic Material Using Lce Dish
    冰盘纳米抛光金属材料的研究
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  材质
    The material factors influencing the shot-peening effect for structure steels
    影响结构钢喷丸强化效果的材质因素
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    Researches on the Shape Wheel Material in Coal Machines
    煤炭机械型轮材质的研究
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    Influence of Material Defects on Properties in the Reactor Inner Containment Processing
    内壳制造中的几种材质缺陷对性能的影响
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    A STUDY ON THE MATERIAL FOR THE GRAY IRON CASTINGS WITH THIN WALL AND HIGH STRENGTH AND ITS INOCULANT
    薄壁高强度灰铸铁件材质及其孕育剂的研究
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    Study on A New Type Crucible Material of Cast Iron for Melting Aluminium
    熔铝坩埚新材质——低合金铸铁的研究
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  “material”译为未确定词的双语例句
    AN INVESTIGATION REPORT ON THE MATERIAL OF MACHINE-TOOL OF CONCRETE STRUCTURE
    混凝土结构机床调查报告
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    A Study of Nickel Alloy Matrix Self-lubricating Composite Material and Application
    镍合金基自润滑材料的研制与应用
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    Failure analysis and material selection of cross recession punch
    十字槽精冲模的失效分析和合理选材
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    Influence of Magnesium and Zirconium on High Temperature HCF, Static and Dynamic Creep Behaviours in Disc Material GH33A Superalloys
    Mg、Zr对GH_(33)A合金高温疲劳以及静、动态蠕变行为的影响
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    Some Applications of the Thermal Analysis Technique in Nuclear Material Process
    热分析技术在核燃料加工中的某些应用
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  material
The material presented here is a synopsis of the Ph.D thesis of the author, cf.
      
Compound 4, 5, 6, 7, and 8 were synthesized from 4-benzoyl-1,5-diphenyl-1H-pyrazole-3-carboxylic acid 1 as a starting material.
      
Inverse computation of optical-absorption coefficient in inhomogeneous material with varied thermal conductivity
      
It showed that the bromide in the rosin glycerin ester decomposed faster than the ester; hence it may be used as fire-resistant material.
      
The biomimetic three-dimensional porous composite can serve as a kind of excellent scaffold material for bone tissue engineering because of its microstructure and properties.
      
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In order to determine the workability of cast iron with spheroidal graphite,the following tests have been conducted on this material in the as-cast and annealed condition:tensile tests,compression tests,Charpy impact tests,impacttensile tests,twisting tests,upsetting tests under the drop hammer and small-scaledrolling tests.Results from these tests show that the best hot-working temperature rangeof this material varies somewhat with the stress system applied and the speed ofworking,and in general...

In order to determine the workability of cast iron with spheroidal graphite,the following tests have been conducted on this material in the as-cast and annealed condition:tensile tests,compression tests,Charpy impact tests,impacttensile tests,twisting tests,upsetting tests under the drop hammer and small-scaledrolling tests.Results from these tests show that the best hot-working temperature rangeof this material varies somewhat with the stress system applied and the speed ofworking,and in general lies between 700° and 1100℃.Within this temperaturerange,the maximum amount of working permissible for a single working operationvaries considerably with the stress system applied.Under tensile stresses,thismaximum amount of working lies between 28 and 57.6%;under predominentlycompressive stresses,it lies between 58.5 and 72.9%;while in the small-scaledrolling tests,the maximum reduction in thickness permissible for a single passlies between 38.6 and 44.3%.The maximum amount of working permissible is alsoaffected by the speed of working,being greater at lower speeds.Tests on industrial scale show that the upsetting and small-scaled rollingtests give results nearest to those from industrial tests.Charpy impact tests,impacttensile tests,upsetting tests and small-scaled rolling tests show more prominentlythe best hot-working temperature range than the other tests conducted.Results of the present research also indicate that cast iron with spheroidal graphitehas a higher strength and workability when subjected to compressive stresses thanto tensile stresses,that a brittle temperature range has been recorded between200° and 650℃,which varies with the speed of test.Judging from the variationof the resistance to deformation with the change of temperature and the speedeffect,this phenomenon is associated with blue brittleness.

为了确定球墨铸铁的可塑性,曾进行了铸态和铸态经墨化热处理后的球墨铸铁在不同温度下的抗张试验、抗压试验、冲击弯曲试验、冲击抗张试验、撚扭试验、顶锻试验和小型压延试验庑┦匝橹赋?球墨铸铁的最好热加工温度范围随着应力体系和加工速度的不同而略有不同,但一般介于700℃和1100℃之间。在此温度范围内球墨铸铁能够耐受的最大加工量依所受的应力体系而有相当大的差別。在张应力作用下,此最大加工量介于28—57.6%之间,在主要为压应力作用下,介于58.5—72.9%之间;在小型压延试验中,其最大加工量则介于38.6—44.3%之间。最大加工量亦受速度的影响:实验室的试验指出,球墨铸铁在比较低速下加工有较高的塑性。在比较接近生产的条件下的试验结果指出:顶锻试验和小型压延试验给予最靠近生产试验结果的数值。冲击弯曲、冲击抗张、顶锻试验和小型压延试验给予比较明确的最好热加工温度范围,其他试验则不能给予很明确的结果。如果采用了测压仪、小型压延试验,还可以提供变形阻力的资料。试验结果指出:球墨铸铁在压应力作用下比在张应力作用下有较大的强度和塑性;其中温变脆温度依试验速度的变化而在200°—650℃之间变化,根据变形阻力和变脆温度范围的...

为了确定球墨铸铁的可塑性,曾进行了铸态和铸态经墨化热处理后的球墨铸铁在不同温度下的抗张试验、抗压试验、冲击弯曲试验、冲击抗张试验、撚扭试验、顶锻试验和小型压延试验庑┦匝橹赋?球墨铸铁的最好热加工温度范围随着应力体系和加工速度的不同而略有不同,但一般介于700℃和1100℃之间。在此温度范围内球墨铸铁能够耐受的最大加工量依所受的应力体系而有相当大的差別。在张应力作用下,此最大加工量介于28—57.6%之间,在主要为压应力作用下,介于58.5—72.9%之间;在小型压延试验中,其最大加工量则介于38.6—44.3%之间。最大加工量亦受速度的影响:实验室的试验指出,球墨铸铁在比较低速下加工有较高的塑性。在比较接近生产的条件下的试验结果指出:顶锻试验和小型压延试验给予最靠近生产试验结果的数值。冲击弯曲、冲击抗张、顶锻试验和小型压延试验给予比较明确的最好热加工温度范围,其他试验则不能给予很明确的结果。如果采用了测压仪、小型压延试验,还可以提供变形阻力的资料。试验结果指出:球墨铸铁在压应力作用下比在张应力作用下有较大的强度和塑性;其中温变脆温度依试验速度的变化而在200°—650℃之间变化,根据变形阻力和变脆温度范围的变化可以比较肯定地认为这是一种蓝脆的现象。

In order to study whether the extrapolation method of creep test by an elevation of temperature through activation energy described in a previous paper is applicable whenphase transformations occur during creep,creep tests were made on four different alloys(three heat-resisting steels and one aluminium alloy)at different temperatures with cons-tant stress.Before the creep tests,specimens were so treated that appropriate phasetransformations were expected to occur under the temperatures of tests.The experi-mental...

In order to study whether the extrapolation method of creep test by an elevation of temperature through activation energy described in a previous paper is applicable whenphase transformations occur during creep,creep tests were made on four different alloys(three heat-resisting steels and one aluminium alloy)at different temperatures with cons-tant stress.Before the creep tests,specimens were so treated that appropriate phasetransformations were expected to occur under the temperatures of tests.The experi-mental results showed that,in the temperature range investigated,there existed a cons-tant“activation energy of creep”for two alloys,but not for the other two.When phasetransformations mentioned above were made negligible,a constant activation energy ofcreep was always obtained in the same temperature range for all alloys.This indicates that,the so called“activation energy of creep”depends not only uponthe composition of material,but also upon the microstructure.A preliminary analysis shows tha,when phase transformations occur during creep,the applicability of this extrapolation method depends upon the type of phase trans-formation taken place.

研究了在蠕变过程中有相变发生的情况下,应用通过蠕变激活能提高温度、缩短蠕变试验时间的方法的可能性。为此,用三种耐热钢和一种铝合金分别在同一应力不同温度下,进行了一系列的蠕变试验.在蠕变试验前,对试样进行了适当的热处理,使得在蠕变试验温度下有预期的相变发生.实验结果指出,在试验温度范围内,其中两种试样存在恒定的”蠕变激活能”,另两种试样则不存在恒定的“蠕变激活能”.而在有意使得上述相变不发生的情况下,这四种试样在同样的试验温度范围内,都存在恒定的蠕变激活能.这说明“蠕变激活能”不仅决定于材料的成份,而且决定于组织结构.初步分析指出,在蠕变过程中有相变发生的情况下,这种外推方法能否适用决定于相变的类型。

Experience shows that plastic auisotropy between in plane of sheet and in thickness' direction of sheet as well as strain-hardenming of metal are benificial to its drawability. The main purpose of this survey is to indicate the relationship between them, and further-more a method of qualitative assessment of drawability (Calculation of limiting drawing ratio) is proposed. In this connexion, only a simple tention test is required. When solving the question, how to get a correct and reliable strength of the critical...

Experience shows that plastic auisotropy between in plane of sheet and in thickness' direction of sheet as well as strain-hardenming of metal are benificial to its drawability. The main purpose of this survey is to indicate the relationship between them, and further-more a method of qualitative assessment of drawability (Calculation of limiting drawing ratio) is proposed. In this connexion, only a simple tention test is required. When solving the question, how to get a correct and reliable strength of the critical cross-section in deep-drawing is the main point to be considered. In response to this, considering the combining effect of anisotropy and strain-hardenning of sheet metals and the condition oi collapse due to tention in complicated stress' condition, the author is proposing a formula to calculate the strength of critical cross-section in deep-drawing. The reliability of the formula and the correctness of the method for calculating limiting drawing ratio have been confirmed by the experimental results of seven diferent materials.

实践表明,金属板料在板平面与厚度方向之间的塑性異性,以及材料的应变刚,两者皆对其压延性能有利。本文从理论上分析了它们与压延性能之间关系,并进而提出一种定量评定板料压延性能的方法(计算极限压延系数),此时只须进行简单的拉伸机械试验即可。解决该问题的关键在于,如何可靠地确定压延危险断面强度。为此,本文考虑到上述的板料各向异性及应变刚的综合作用,并利用板料在复杂应力状态下的受拉失稳条件,得出了压延危险断面强度的计算公式。该公式本身以及计算极限压延系数的方法,其可靠性为七种板料的试验研究结果所证实。 本文为作者在北京航空学院付教授唐荣锡指导下,所完成的研究生毕业论文之一部分。在实验工作方面得到实验室同志的大力支持,在此顺致谢意。

 
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