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      properties
      相關語句
        性能
          Systemically Study of Electronic Structure and Properties for Ti-Al Alloys
          Ti-Al合金電子結構和性能的系統研究
      短句來源
          Effects of Cyclic Heat Treatment on Microstructures and Mechanical Properties of TiAl-based Alloy
          循環熱處理對TiAl基合金組織與性能的影響
      短句來源
          Study on the Physical Properties,Point Defects and Atomic Diffusion in Intermetallics by a Modified Analytic EAM Model
          金屬間化合物物理性能、點缺陷及擴散的改進分析型EAM模型研究
      短句來源
          Effect of Alloying, Heat Treatment and Magnetization Treatment on Microstructure and Electrochemical Properties of AB_5 Type Hydrogen Storage Electrode Alloy
          合金化、熱處理及磁化處理對AB_5型貯氫電極合金微結構與電化學性能的影響
      短句來源
          Composition Design and Properties of the Zr-Al-Ni-Cu Bulk Metallic Glasses
          Zr-Al-Ni-Cu大塊非晶合金成分設計及性能研究
      短句來源
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        性能的
          Systemically Study of Electronic Structure and Properties for Ti-Al Alloys
          Ti-Al合金電子結構和性能的系統研究
      短句來源
          Effects of Cyclic Heat Treatment on Microstructures and Mechanical Properties of TiAl-based Alloy
          循環熱處理對TiAl基合金組織與性能的影響
      短句來源
          Effect of Alloying, Heat Treatment and Magnetization Treatment on Microstructure and Electrochemical Properties of AB_5 Type Hydrogen Storage Electrode Alloy
          合金化、熱處理及磁化處理對AB_5型貯氫電極合金微結構與電化學性能的影響
      短句來源
          Study on Microstructures and Mechanical Properties of Heat Resistance Aluminum Alloy 2618
          2618耐熱鋁合金的組織與力學性能的研究
      短句來源
          Effect of Microstructures on Mechanical Properties for Ti-Al-Nb Ternary Alloys
          Ti-Al-Nb三元系中的合金組織對性能的影響
      短句來源
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        “properties”譯為未確定詞的雙語例句
          Microstructure and Mechanical Properties of NiAl-based Eutectic Alloys and Alloying Behavior of Rare Earths
          NiAl基共晶合金的組織和力學行為及稀土合金化研究
      短句來源
          Study on Corrosion Properties of Domestic X70 Pipeline Steels and Welding Joints in Medium with Hydrogen Sulfide
          國產X70管線鋼及其焊接接頭的硫化氫腐蝕性能研究
      短句來源
          A Study on Hydrogen Storage Properties of La_2Mg_(16)Ni Modified by Ball Milling and Dynamic Process of Benzene Hydrogenation Reaction in Liquid Phase Catalyzed by La_2Mg_(16)Ni Hydride
          La_2Mg_(16)Ni儲氫合金的球磨改性及其氫化物催化液相苯加氫反應動力學過程研究
      短句來源
          Glass Forming Ability, Magnetic Properties and Microstructure of Nd-Al-Fe-Co Bulk Metallic Glasses
          Nd-Al-Fe-Co大塊非晶的非晶形成能力、磁性和顯微結構研究
      短句來源
          Microstructure and Mechanical Properties of NiAl-Cr(Mo) Eutectic Alloys Processed by Various New Routes
          幾種新工藝制備的NiAl-Cr(Mo)共晶合金的組織與機械性能
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        properties
      They result in many nontrivial properties of quantum immanants.
            
      The paper studies generic commutative and anticommutative algebras of a fixed dimension, their invariants, covariants and algebraic properties (e.g., the structure of subalgebras).
            
      Whenever the action of a maximal torus on the coneCλ* has some nice properties, we obtain simple closed formulas for all weight multiplicities and theirq-analogs in the representationsVnλ,n∈?.
            
      Some basic properties of the compactness propertiesCn are shown.
            
      A local-global principle for finiteness properties ofS-arithmetic groups over number fields
            
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      Under the conditions of basic open hearth smelting at Anshan steel works which employ scrap-ore-liquid iron charge, a statistical analysis of the production data shows that within the limit investigated the manganese content of the molten bath has no appreciable influence upon the oxygen and sulphur content of the steel. Provided that the final chemical analysis of the steel was the same, no difference in mechanical properties was observed between the products derived from the higher (>0.2% Mn) and the...

      Under the conditions of basic open hearth smelting at Anshan steel works which employ scrap-ore-liquid iron charge, a statistical analysis of the production data shows that within the limit investigated the manganese content of the molten bath has no appreciable influence upon the oxygen and sulphur content of the steel. Provided that the final chemical analysis of the steel was the same, no difference in mechanical properties was observed between the products derived from the higher (>0.2% Mn) and the lower(<0.1% Mn) manganese specifications during smelting. It is concluded that for the two steels (rail steel and a low-carbon steel for seamless tube) investigated at least, there is no necessity for adhering to the specification of manganese content above a certain level(>0.15-0.2% Mn) during smelting.On the contrary, with a view to maintaining a higher manganese-containing bath, it was usually found necessary to add iron-manganese or manganese ore at the end of melting down; in doing so, the rate of carbon-removal was to a certain extent retarded, thus lengthening the period of smelting and decreasing the rate of production.The use of low manganese-containing pig-iron for the smelting of certain qualitysteels is not only feasible but also advisable from the economic point of view, provided, of course, that the sulphur content of such pig-iron can be made low to meet the necessary requirement. A review of the iron production data in certain blast furnaces at Anshan shows that this is possible, although the best conditions for producing low manganese and low sulphur pig-iron in blast furnaces deserve further a more detailed investigation.

      本文結合生產研究了鞍鋼堿性平爐冶煉重軌和無縫等碳素鎮靜鋼的錳制度.研究結果指出:就上述鋼種而言,熔煉過程中的錳制度對鋼中氧、硫含量以及軋制的成品質量並沒有實際影響,換句話說,并沒有必要規定熔池含錳量高於一定水平(>0.15—0.2%Mn).相反地,熔池含錳較高或在熔煉過程中加入錳鐵均使降碳速度趨於緩慢,從而延長了熔煉時間.因此,只要高爐鐵水中含硫量能夠合乎規定,用低錳生鐵作原料對煉鋼並無害處.通過高爐生產數據分析,說明在鞍鋼的操作條件下完全有可能生產含錳低而含硫合乎上述規定的鐵水,應該認為用低錳生鉄冶煉重軌和無縫類型的優質鋼是切實可行的.

      Experiments were carried out with the purpose of shortening the reducingperiod in small basic electric furnace for carbon steels of various carbon content.In some of the experimental heats reducing period was shortened by 20 mi-nutes and the others were made according to the normal procedure of the works.For some of the low carbon steel heats,the amount of ferro-silicon powder wasincreased by 20% and added in advance.The results,obtained from heats of shorterreducing period,show that the deoxidation and desulphurization...

      Experiments were carried out with the purpose of shortening the reducingperiod in small basic electric furnace for carbon steels of various carbon content.In some of the experimental heats reducing period was shortened by 20 mi-nutes and the others were made according to the normal procedure of the works.For some of the low carbon steel heats,the amount of ferro-silicon powder wasincreased by 20% and added in advance.The results,obtained from heats of shorterreducing period,show that the deoxidation and desulphurization appear to be ascomplete as that of a normal heat,the content of nitrogen and non-metallic in-clusions being much less.In addition,the results on mechanical properties showthat in the case of medium carbon steel,the impact value is higher,and in thecase of low carbon steel the percentage of elongation and the rate of reductionof area are also slightly superior although the yield strength becomes somewhatlower.Such a shortening of reducing period also results in a 7% increase ofthe rate of production.It is suggested that in electric steel smelting process theappropriate deoxidation procedure and the length of reducing period should varyin accordance with different carbon content of the steel.A relationship of[S]/[O]=1.2—2.2 at the end of reducing period was ob-served,and the possibility of further shortening of the reducing period in makingmedium and high carbon steel was also pointed out.

      在裝料量為8噸的小型電爐上進行了冶煉各種碳鋼的縮短還原期的研究。還原期縮短到70分鐘(低碳鋼冶煉中還增加矽鐵粉加入量和提早加入時間)的結果是:脫氧、脫硫符合要求,鋼中非金屬夾雜物和氮的含量顯著減少,并提高爐子生產率約7%。從而指出了以電爐冶煉碳鋼時還原期的時間和脫氧制度應按鋼中碳含量的不同而有所區別。并指出中、高碳鋼冶煉中還原期縮短到50分鐘左右的可能性。此外還觀察到還原期末[S]/[O]=1.2—2.2的關系。

      In order to find out the properties of Nichrome 80 Ni-20 Cr under mechanical

      為了掌握X20H80電熱絲材料的加工性能,曾進行了可塑性、鍛造、壓延、冷拔和熱處理的系統研究工作,并曾于實驗室內由200毫米直經的鑄錠制造了1.0毫米直經的線材進行壽命測量試驗。結果良好,充分證實了在實驗室內求出的可塑性指標是正確的。茲將本研究的主要結果歸納如下: 1.不同的可塑性試驗和實際的鍛造和壓延試驗證實了此合金的最好熱加工溫度范圍為1100-1300℃。在800℃與1000℃之間存在著一個較脆性的溫度范圍,在加工過程中,應盡量避開此較脆性的溫度范圍。2.在800℃與1300℃之間壓延此合金的扁平試樣時,變形阻力與壓下率間存在著直線關系。橫展量亦隨壓下率的增大而迅速上升。在壓下率為30%以下,溫度的上升提高了橫展量。3.為了獲得良好的成品,鍛造時應采用圓角較大的錘頭以消除折疊;孔型設計時應充分考慮橫展量,以免產生耳子造成折疊;冷拔模子應力求光滑,潤滑劑亦應保證清潔。4.冷拔時線材的退火規范,依冷拔量的不同,在900-1050℃下保溫20-30分鐘,均能獲得良好的結果。5.此合金有良好的冷加工性能。退火后一次冷拔不發生斷裂的最大加工量可達35.4%,連續冷拔可以達到90%的斷面減縮率。

       
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