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   cooling 在 冶金工业 分类中 的翻译结果: 查询用时:0.176秒
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cooling     
相关语句
  冷却
    EXPERIMENTAL STUDY OF HEAT TRANSFER COEFFICIENT AT THE SECONDARY COOLING ZONE IN CONTINUOUS CASTING
    连铸二冷区喷水冷却传热系数的实验研究
短句来源
    An analysis on the design parameters of plate-type water cooled furnace wall and circulating cooling system of an EAF
    电弧炉板式水冷炉壁及循环冷却系统设计参数的分析
短句来源
    INFLUENCE OF COKE-OVEN GAS AS COOLING MEDIUM ON METALLIZED PELLET QUALITY
    焦炉煤气冷却金属化球团对产品质量的影响
短句来源
    RELATIONSHIP BETWEEN COOLING RATE AND SECONDARY DENDRITE ARM SPACING FOR STEEL No. 45
    45号钢二次枝晶臂间距与冷却速度的关系
短句来源
    DETERMING OF CCT CURVE AND OBSERVING OF CONTINUOUS COOLING TRANSFORMATION MICROSTRUCTURE OF THE 55SiMn2Mo STEEL
    55SiMn2Mo钢CCT曲线测定及连续冷却转变组织观察
短句来源
更多       
  
    EXPERIMENTAL STUDY OF HEAT TRANSFER COEFFICIENT AT THE SECONDARY COOLING ZONE IN CONTINUOUS CASTING
    连铸二区喷水却传热系数的实验研究
短句来源
    DEVELOPMENT AND APPLICATION OF MATHEMATICAL MODEL FOR SECONDARY COOLING SYSTEM OF BILLET CONCASTER
    小方坯连铸机二系统数学模型的开发与应用
短句来源
    OPTIMIZATION OF THE SPRAY COOLING OF CONTINUOUS CASTING PROCESS BASED ON THE NUMERICAL SIMUL ATION OF TEMPERATURE FIELD
    用温度场数值模拟方法优化连铸二制度
短句来源
    DESIGN OF SECONDARY COOLING SYSTEM FOR MEDIUM SIZED HORIZONTAL CONCASTER
    中型水平连铸机二系统的设计
短句来源
    HYDROGEN CONTENTIN U71Mn RAIL AND EFFECT OF SLOW COOLING
    攀钢U71Mn重轨中的氢与缓效果
短句来源
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  冷却的
    DEVELOPMENT TREND OF FURNACE COOLING FOR DOMESTIC COPPER SMELTING
    国内铜闪速炉炉体冷却的发展趋向
短句来源
    Improvement of Cooling System at No. 4 BF. of TISCO.
    太钢4号高炉炉体冷却的改进
短句来源
    Research on Secondary Cooling of Billet for ROKOP Continuous Casting Machine of Chuanwei Irom & Steel Group Co.
    威钢ROKOP高效方坯连铸二次冷却的研究
短句来源
    In the light of analysis of temperature reducing principle and the problems of gas cooling in the old dry dedusting system,a transformation plan of gas indirect cooling was proposed.
    通过对原干式除尘系统中煤气冷却部分除温原理、存在问题的分析,提出煤气间接冷却的改造方案,并对改造后的技术水平、运行效果、取得的效益等作了介绍。
短句来源
    Research on different cooling of shell of BOF
    转炉炉壳实施不同冷却的研究
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  冷却水
    Analysis & prevention of explosion accident of cooling jacket of cement shaft kiln cover
    水泥立窑窑罩冷却水套爆炸事故分析及防范措施
短句来源
    CONTROL MODEL FOR SECONDARY COOLING ZONE OF SLAB CONCASTER
    板坯连铸机二次冷却水的控制模型
短句来源
    Calculation of cooling water resistance in eccentric spiral tuyere
    偏心螺旋风口冷却水阻力减半的分析
短句来源
    Discussion on Indirect Cooling Water Treatment System for Metallurgical Appliances
    冶金设备间接冷却水处理系统探讨
短句来源
    Application of TJ water stabilizer to the circulating cooling water in the Power Plant of Hefei Steel Group
    TJ型水质稳定剂在合钢公司动力厂循环冷却水中的应用
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      cooling
    Compound 3 exhibited the enchased texture of a smectic liquid crystal from 209.4°C to 219.5°C on heating, while 2 exhibited a liquid crystalline phase from 87.4 to 83.2°C on cooling.
          
    The model adopted two exponential equations to calculate the martensite fractions for cooling and heating, respectively.
          
    In this paper, the technical method of cooling quench medium with air-cooler in the process of bearing quenching is introduced.
          
    In the application of knife-edge technique, the temperature of atoms through laser cooling was measured.
          
    Results indicate that, after atoms are emitted from an atomic oven, the longer the atoms move, the worse the distribution of the atomic beam shows, regardless the laser cooling is taken or not.
          
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    The desulphurization of molten slags in the gaseous phase during top-blown with air has been studied from the kinetic standpoint, emphasis being made to study the effects of FeO, the j value (j=N_(Fe_2O_(3))/(N_(Fe_2O_3)+N_(FeO))) and the basicity of the slag upon the rate of removal of sulphur. It has been found that this gaseous desulphurization takes place according to the following reaction: (S~(2-))+3/2O_2=SO_2+(O~(2-)), (1)while the iron ions in the slag serve only as the oxygen-carriers:6(Fe~(3+))+(S~(2-))+2(O~(2-))=6(Fe~(2+))+SO_2,...

    The desulphurization of molten slags in the gaseous phase during top-blown with air has been studied from the kinetic standpoint, emphasis being made to study the effects of FeO, the j value (j=N_(Fe_2O_(3))/(N_(Fe_2O_3)+N_(FeO))) and the basicity of the slag upon the rate of removal of sulphur. It has been found that this gaseous desulphurization takes place according to the following reaction: (S~(2-))+3/2O_2=SO_2+(O~(2-)), (1)while the iron ions in the slag serve only as the oxygen-carriers:6(Fe~(3+))+(S~(2-))+2(O~(2-))=6(Fe~(2+))+SO_2, (2)6(Fe~(2+))+3/2O_2=6(Fe~(3+))+3(O~(2-)). (3)With slags containing very little or no FeO or slags with constant j value, as when air is blown upon the slag surface from a rather remote distance, the reaction has been found to be of the first order, the transfer of S~(2-) ions inside the slag being most probably ratecontrolling. An increase in the FeO content and the j value of the slag, as well as the temperature, accelerates the speed of removal of sulphur, while an increase in slag basicity retards it. It has been proposed that, owing to the oxidizing character of the blown-in air, SO_4~(2-) ions might have been formed inside the slag, but at the high temperatures prevailing, they decompose immediately into SO_2 and O_2. Any sulphate that may be present in the solidified slag is most probably being formed on its way of cooling in air. Attention has been called to resort to the correct method of analysis of total sulphur in the slag, the combustion method using CO_2 as the oxidizer being more accurate than the method using pure O_2. It has also been shown experimentally that the direct gaseous desulphurization of the metal is not so feasible as that of the slag, and that there exists some contradiction between the desulphurization of the metal with slag and the gaseous desulphurization of the slag. With a view to bringing about as a whole a more efficient desulphurization, the possibility of adapting the gaseous desulphurization to the actual steelmaking practice with the converter is briefly discussed.

    利用空气顶吹研究熔渣的气态脫硫动力学,着重研究了熔渣∑FeO含量、j值[j=N_(Fe_2O_3)/(N_(Fe_2O_3)+N_(FeO))]、以及碱度对气态脫硫速度的影响.对气态脫硫反应的机理及反应速度的限制性环节作了分析和讨论.最后,对金属直接的气态脫硫、炉渣的气态脫硫和炉渣脫硫本身的矛盾、以及气态脫碗在转炉炼钢工艺上的应用问题进行了简要的讨论.

    Since the energy crisis began in 1973, the developed countries have beenpaying great attention to energy conservation, and a lot of investigations ofenergy conservation for electrical furnaces have been carried out in thefields of the metallurgical and machine-building industries. Nowadays, the principal technique of energy conservation for resistance-heated furnaces isto use ceramic fiber liner and direct resistance heating. The chief tendencyof energy conservation for induction furnaces includes the recovery...

    Since the energy crisis began in 1973, the developed countries have beenpaying great attention to energy conservation, and a lot of investigations ofenergy conservation for electrical furnaces have been carried out in thefields of the metallurgical and machine-building industries. Nowadays, the principal technique of energy conservation for resistance-heated furnaces isto use ceramic fiber liner and direct resistance heating. The chief tendencyof energy conservation for induction furnaces includes the recovery of wasteheat from cooling water, the preheating of the charge, the combination heat-ing and the choice of high-efficient frequency converters. As to are furnacesthe primary investigation subjects consist of the preheating of the chargeand the recovery of waste heat from flue gas.

    1973年能源危机发生以来,国外高度重视能源节约,在冶金、机械等工业领域里大力开展电炉节能研究。当前,电阻炉的主要节能技术是应用耐火纤维炉衬以及电阻直接加热;感应电炉节能的主要动向包括冷却水废热回收、炉料预热、联合供热以及选用高效率的变频设备;电弧炉节能的主要研究课题是炉料预热以及烟气废热的回收。

    Some essential characteristics during solidification of GCr15 remelted by ESR, EBR and VARare analysed and compared in the paper. The dendritic secondary arm spacings S_Ⅱ were measuredfor the three ingot types. S_Ⅱ (ESR) is 60-102μ; S_Ⅱ (VAR) is 54-120μ; S_Ⅱ (EBR) is 70-132μ. Basedon S_Ⅱ, the local average cooling rate, R_r; the distance of the mushy zone, X_r; the local solidifi-cation time, t_r; and the temperature gradient, G; in different regions of the ingots were calculatedand discussed. It was found...

    Some essential characteristics during solidification of GCr15 remelted by ESR, EBR and VARare analysed and compared in the paper. The dendritic secondary arm spacings S_Ⅱ were measuredfor the three ingot types. S_Ⅱ (ESR) is 60-102μ; S_Ⅱ (VAR) is 54-120μ; S_Ⅱ (EBR) is 70-132μ. Basedon S_Ⅱ, the local average cooling rate, R_r; the distance of the mushy zone, X_r; the local solidifi-cation time, t_r; and the temperature gradient, G; in different regions of the ingots were calculatedand discussed. It was found that the macrostructure of ingots, the size and distribution of nonmetallicinclusions and carbides, and the dendritic microsegregation were closely related to the local averagecooling rate R_r. On making a remelting program attention should be paid to selecting a high coolingrate.

    本文分析和对比了ESR、EBR、VAR三种重熔方法在GCr15钢凝固过程的一些基本特性。测量了这三种重熔锭中各部位树枝晶的二次轴间距S_Ⅱ。测得S_Ⅱ(ESR)为60~102μ;S_Ⅱ(VAR)为54~120μ;S_Ⅱ(EBR)为70~132μ。根据S_Ⅱ计算和讨论了各锭中不同部位的平均冷却速度R_r,两相区间距X_r, 局部凝固时间t_r及该区的温度梯度G_0发现钢锭的宏观结构,锭中非金属夹杂物和碳化物的尺寸及分布,以及枝晶的微观偏析与锭中局部平均冷却速度R_r密切关联,在制定重熔冶炼参数时,要注意提高锭中冷却速度。

     
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