ofhc 中文意思是什麼

ofhc 解釋
無氧高導電銅
  1. Light gas gun was used to create shock pressure. staged samples, cuneiform window with aluminium coat on the reflecting surface and visar ( velocity interferometer system for any reflector ) were employed in the experiments. polymethyl methacrylate and ofhc copper were assembled as the impactor to impact staged samples

    採用氣炮加載，利用臺階樣品、雙點式visar （ velocityinterferometersystemforanyreflector ）和鍍膜楔形窗口技術，以有機玻璃和無氧銅組合為飛片，碰撞無氧銅臺階樣品。
  2. High energy explosive was used to create a powerful and planar shock wave for accelerating flyer plate to high velocity, and high pressure was produced when flyer impacting with the sample. in the experiments, the impactor was brass and target was ofhc copper. by measuring the shock wave velocities of hr2 steel, high - density glass, aluminium alloy ( ly12 / lf6 ), magnesium - aluminium alloy ( mb2 ), polymethyl methacrylate and air, shock pressure and release isentrope of ofhc copper have been obtained

    採用化爆加載、平面波發生器和空腔增壓技術，以黃銅為飛片，無氧銅為靶板，測量了抗氫鋼（ hr2 ） 、重玻璃（ sio _ 2 ） 、鋁合金（ ly12 lf6 ） 、鎂鋁合金（ mb2 ） 、有機玻璃（ pmma ） 、空氣（ air ）和無氧銅（ ofhccopper ）各阻抗匹配樣品中的沖擊波速度，上述材料的hugoniot狀態參數c _ 0 、均為已知，由此確定了無氧銅的沖擊加載壓力和等熵卸載后的狀態，得到了等熵卸載路徑。
  3. Results indicate that with the approximation of _ ( 0 ) _ ( 0 ) - grtlneisen equation of state is usable to describe the release isentrope of ofhc copper in the present pressure range. in addition, the difference ( w - 2u ) becomes greater with the increase of shock pressure, where w is the measured particle velocity at the final release state ( 1 atm ) and 2u is computed from the mirror line of hugoniot

    卸載路徑的計算和分析表明：在所研究的壓力范圍，無氧銅的等熵卸載過程用gr neisen狀態方程在_ 0 _ 0 =近似下的描述是適用的；卸載到一個大氣壓的終態粒子速度w與鏡像反演的粒子速度2u的偏差，隨沖擊波壓力的增加而增大。
  4. Lagrange wave speed in the release process was computed from the measurement, and result shows a good agreement with the data in literature. furthermore from the lagrange wave speed, the stress - strain relationship in the release process was calculated using the impedance match solution. comparison of the stress - strain with the fluid elastic - plastic model indicates that ofhc copper exhibits a clear work - harden behavior during the release

    根據界面粒子速度剖面，計算得到了卸載過程中lagrange聲速隨界面粒子速度變化的關系，所得結果與文獻給出的數據符合很好；其次，利用阻抗匹配近似，計算分析了無氧銅卸載過程的應力-應變關系，並與流體彈塑性模型進行了比較，結果表明：無氧銅的卸載過程存在明顯的應變硬化效應。
  5. Flow stress and constitutive model of ofhc cu for large deformation, different temperatures and different strain rates

    不同溫度和不同應變率下的流動應力和本構模型
  6. Our focus and our direction is to become the most customer - friendly, low cost provider of high quality copper and copper alloy products while generating an above average return on investment for our owners. oxygen - free high conductivity copper is produced by the direct conversion of selected refined cathodes and castings under carefully controlled conditions to prevent any contamination of the pure oxygen - free metal during processing. the method of producing ofhc

    江銅銅材有限公司可以生產各類品種規格的銅及銅合金產品，公司的主導產品-無氧銀銅合金材料和銀銅合金異型排，廣泛應用於家電汽摩配電動工具等產品的各種電機換向器，該產品生產歷史悠久，技術先進，質量可靠，深得用戶好評，市場佔有率在國內名列前茅，並逐年上升。
  7. The dynamic fracture and fragmentation of ofhc cu under 1 - d fast tension

    一維快速拉伸下無氧銅的動態斷裂與破碎
  8. Two experimental methods were used to investigate the isentropic release properties of ofhc copper at 116 - 148 gpa and 12, 18. 5gpa shock compression states. off - hugoniot data have been measured and discussed in this dissertation. method i : calibrated release measurement

    本文採用兩種實驗方法測量了無氧銅在116 148gpa和12 、 18 . 5gpa壓力下的等熵卸載路徑，得到了部分高壓和低壓區的off - hugouniot數據。
  9. Numerical simulation also conf irm this analysis that the fluid elastic - plastic model can approximately describe the shock compression and release process of ofhc copper in the teens gpa range, but for precise description, especially in the initial release stage, more detail constitutive model is needed

    數值計算結果也支持了這種分析：在十幾個gpa的壓力范圍，無氧銅的沖擊加載-卸載過程近似滿足流體彈塑性模型，但在精確描述，尤其對初始卸載階段的描述上，仍需要更準確的本構方程和物理模型。
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