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铜循环
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  copper cycle
     An Analysis of Contemporary Copper Cycle in China(Ⅰ)——″STAF″ Method
     中国铜循环现状分析(Ⅰ)——“STAF”方法
短句来源
     An Analysis of Contemporary Copper Cycle in China(Ⅱ)——Substance Flow Analysis with Time Factor of the Life Cycle of Products
     中国铜循环现状分析(Ⅱ)——具有时间概念的产品生命周期物流分析方法
短句来源
  “铜循环”译为未确定词的双语例句
     CYCLIC DEFORMATION CHARACTERISTIC OF SUBMICROMETER COPPER
     亚微米铜循环形变特征研究
短句来源
     The effects of grain size and plastic strain amplitude(ε_(pa)) on hysteresis energy in cyclic deformation of polycrystalline copper are studied.
     研究了多晶铜循环形变中晶粒尺寸和塑性应变幅对滞回能的影响.
短句来源
  相似匹配句对
     Within the layer the copper?
     ?
短句来源
     COPPER
    
短句来源
     CYCLIC DEFORMATION CHARACTERISTIC OF SUBMICROMETER COPPER
     亚微米循环形变特征研究
短句来源
     Application of frequency converter for cyclical pump station of electrolytic copper
     变频器在电解循环泵站的应用
短句来源
     RECYCLE
     循环再利用
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  copper cycle
A comprehensive technological copper cycle treating a series of life stages (mining and processing, fabrication, utilization, and end of life) has been constructed for sixteen countries on the European continent for the year 1994.
      
Using this model, the contemporary copper cycle of the Asian region was constructed by aggregating country-level production and import and export data for different stages of the copper cycle.
      
A set of metrics for the copper cycle is suggested in order to address sustainability issues related to resource policy and the environmental management of copper.
      
In the approach of this paper, materials flow analysis is used to assess the first stages of materials flow associated with the copper cycle.
      


Symmetrical push-pull fatigue tests were conducted on as-electrodeposited polycrystalline copper containing a high density of twins. It was found that twins have different effects on fatigue hardening behavior of copper under different plastic strain amplitudes. When plastic strain amplitude was higher than about 8.14×10-4, twins will elevate fatigue saturation stress and extend stress saturation plateau because of the interactions between twin boundaries and dislocations.

对含有高密度孪晶的多晶铜进行了塑性应变幅控制下的疲劳实验.结果表明,塑性应变幅小于8.14×10-4时,孪晶对 疲劳行为的影响不大;塑性应变幅大于8.14×10-4时,孪晶的约束作用、孪晶界与位错的反应及孪晶中位错的特殊组态,使多晶 铜的循环饱和应力提高,硬化曲线中应力饱和平台区延长.

The statuses quo of copper production, consumption and copper ore resources in China were introduced, the necessity of copper scrap's recycling was expounded, and the importance of studying copper cycle was analyzed.The ″STAF″ model was expatiated in detail from the four stages of copper production, copper products manufacture, copper products use and copper scraps reclaim.The social reservoir's variations and flows of copper in China were analyzed by using this model, and the copper-flow diagram in 2002 was...

The statuses quo of copper production, consumption and copper ore resources in China were introduced, the necessity of copper scrap's recycling was expounded, and the importance of studying copper cycle was analyzed.The ″STAF″ model was expatiated in detail from the four stages of copper production, copper products manufacture, copper products use and copper scraps reclaim.The social reservoir's variations and flows of copper in China were analyzed by using this model, and the copper-flow diagram in 2002 was given.Some important indexes, such as ″material self-support ratio″,″copper scrap use ratio″,″copper ore index″,″copper resource efficiency″ and ″copper scrap index″, etc were calculated based on the copper-flow diagram.The above indexes were all under the average level of European countries in the metaphase of 1990s.As the contemporary copper cycle in China,some suggestions were put forward in order to promote a healthy development of copper industry in China.

介绍了中国铜的生产、消费及铜矿资源状况,分析了利用废杂铜资源的必要性,指出了研究我国铜循环的重要性。从铜的生产、铜制品的加工制造、铜制品的使用和废杂铜的回收等四个阶段详细地阐述了铜循环的“STAF″模型,运用此模型分析了中国铜的社会存量变化及其流动状况,得到了2002年的铜流图。由铜流图计算了铜工业的原料自给率、使用废杂铜的比例、矿石指数、铜资源效率和废铜指数等重要指标,我国的这几个指标均不及欧洲国家上个世纪90年代中期的平均水平。针对我国铜循环现状,提出了促进铜工业健康发展的一些建议。

The effects of grain size and plastic strain amplitude(ε_(pa)) on hysteresis energy in cyclic deformation of polycrystalline copper are studied.First,specimens with different grain size are made out by annealing at differert temperatures.Second,fatigue experiments with constant plastic strain amplitude are carried out on Shimadzu fatigue testing machine.By analyzing variation of hysteresis energy density with cyclic number at different ε_(pa),and accumulated hysteresis energy before cyclic saturation(△W) at...

The effects of grain size and plastic strain amplitude(ε_(pa)) on hysteresis energy in cyclic deformation of polycrystalline copper are studied.First,specimens with different grain size are made out by annealing at differert temperatures.Second,fatigue experiments with constant plastic strain amplitude are carried out on Shimadzu fatigue testing machine.By analyzing variation of hysteresis energy density with cyclic number at different ε_(pa),and accumulated hysteresis energy before cyclic saturation(△W) at differert grain size,it is concluded that △W increases with the decrease in grain size.Hysteresis energy density increases with the decrease in ε_(pa) at the same cyclic number,but △W decreases.The effects of grain size on △W weaken with the increase in ε_(pa).

研究了多晶铜循环形变中晶粒尺寸和塑性应变幅对滞回能的影响.通过不同温度退火获得具有不同晶粒尺寸的试样,在岛津5kN疲劳机上进行恒塑性应变疲劳实验,通过分析不同塑性应变幅下滞回能密度随循环周次的变化规律,以及不同晶粒尺寸下饱和前吸收的累积滞回能随塑性应变幅的变化规律,得出结论:晶粒尺寸越小,饱和前吸收的累积滞回能越大;随塑性应变幅增加,相同循环周次时的滞回能密度增大,饱和前吸收的累积滞回能减小;随塑性应变幅增加,晶粒尺寸对饱和前吸收的累积滞回能影响减弱.

 
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