預熔化 的英文怎麼說

中文拼音 [yùrónghuà]
預熔化 英文
premelt
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 熔 : 動詞（熔化） melt; fuse; smelt
  • 熔化 : melt; smelt; meltdown; fusion; fusation; diatexis; eliquation; run; melting; smelting
  1. In the investigations on laser cladding, experiments and analyses of laser clad nickel - based alloys and nickel - based ceramal composite alloys on steel substrates were performed to improve wear - resistance and corrosion - resistance properties of the coatings

    以提高材料表面的耐磨、耐蝕等性能為目的，採用預置和送粉熔覆工藝方式，對常用的鎳基合金和鎳基碳化鎢金屬陶瓷合金塗層進行系統研究。
  2. The research and development of the optical fiber preparation collapsar plc control system has the important significance for realizing plc control system made in our country early and improving the quality of the optical fiber preparation

    本項目的研究和開發，為盡早實現光纖預制棒熔縮機控制系統國產化，不斷提高光纖預制棒的質量具有重要意義。
  3. Mathematical model for predicting melt - erosion in gun barrels

    身管熔化燒蝕的預測數學模型
  4. Predictive model for local core melting accident caused by subassembly blockage in a fast reactor

    快堆局部堵流所致堆芯局部熔化事故的預測模型
  5. Find the law of the influence from the injection pressure to the filling time and the cavity pressure and make certain of the best filling time, injection time and injection pressure. though the analysis of the flowing velocity and pressure spread of the key position element in the injection parts in different gate position, we forecast the injection parts quality and the possibility injection flaw and its position, optimize the gate position. in this paper, though the research of analogue of the runner system of metal - powder injection molding and the process of injection molding, we get the law of how the injection parameter influence the injection process

    在相同的注射條件下，通過分析喂料在不同直徑和長度流道中的流動規律，得到了喂料在流道中的速度場、壓力場和溫度場，找到了流道長徑比的合理取值范圍，並得出通過改變流道設計可實現對現有設備資源充分利用的結論；給出了不同注射壓力下，型腔壓力與充模時間關系曲線和喂料熔體平均充填速度與充模時間關系的曲線，得到了注射壓力對充填時間和型腔壓力的影響規律，確定了最佳的充模時間、注射時間和注射壓力；通過分析採用不同位置澆口注射時注射件關鍵位置單元的流動速度和壓力分佈，預測了注射件的成形質量，或可能產生的注射缺陷及位置，優化了澆口設置。
  6. Liquid - solid extrusion of composite material is a new kind of metal forming process, which has been developed in recent years with a promising practical application prospect for its simple working procedure, low cost and good workpiece performance. through a lot of experiments, the optimization and chosing method of key process parameters ( pouring temperature, mold warm - up temperature, impregnating pressure, impregnating time ) has been mastered. under the precondition of appropriate chosing these parameters, the effective control of extrusion velocity is the key of mading good workpiece. but the control of extrusion velocity remains a handwork, and it is heavily affected by such uncertainties as a handler ' s knowledge and skill about the process. in order to solve the problem, the automatic control of the extrusion velocity is studied, and a computer control system is also designed under existing condition

    通過大量實驗，已掌握了關鍵工藝參數（熔液澆注溫度、擠壓模預熱溫度、浸漬時間、浸漬力）的優化選取方法。在合理選取關鍵工藝參數的前提下，擠壓速度的控制是成形出質量良好製件的關鍵。但是，目前對于擠壓速度的控制仍停留在手動控制階段，利用該工藝制備管、棒材製件的成功與否受操作者對該工藝及其設備的經驗及熟練程度等不確定因素影響很大。
  7. Study on melting rate of pre - reducted pellet in smelting reduction reactor

    熔融還原預還原球團礦熔化速度的研究
  8. The company is a sino - foreign joint - venture enterprise, incorporating smelting, electroslog, refining, forging, steel rolling and tool manufacturing. it has production lines for high speed steel, mould steel, hss circular saw blades, face - sides cutters, mould, blocks, pre - hard fine plate, garden knives, alloy special cutters and planer knives, as well as six production lines for heat treating. the nano coating center is production base for tool & mould steel productions in domestic

    公司是一家集冶煉、電渣重熔、鍛造、軋鋼、精整、工具製造於一體的中外合資企業，擁有高速鋼、冷、熱作模具鋼生產線，高速鋼圓鋸片、三面刃銑刀、模具預硬精板、木工刨刀生產線，高溫熱處理、表面鍍層研發加工中心，是國內最專業的工模具鋼製品化生產基地。
  9. The calculated results are in agreement with the measured ones, indicating that according to the flow rate and composition of the exhaust gas and the mass and the carbon content of the liquid iron, the carbon content of steel bath can be dynamically determined ; with the aid of thermodynamic equilibrium analysis, the dynamic variation of temperature of the steel bath can be forecasted from the dynamic carbon content and the data from the exhaust gas analysis system

    該模型計算結果與檢測結果吻合較好，這表明：通過煙氣流量、成分及鐵水質量和初始碳含量可動態地確定熔池中的碳含量；以動態確定的碳含量為基礎，結合爐氣分析數據，再經熱力學平衡分析，可預測熔池溫度的動態變化。
  10. When pulse width is long enough to above 2. 5ms, the corrected direction of laser hammering is away from the laser head, which may be the reason for weld bath being fatal destroyed

    當脈沖寬度超過2 . 5ms時，由於熔池發生了復雜的變化，有可能使激光錘校正方向相反從而難以預測。
  11. The results indicate that there are some quasiliquid layers on plane ( 001 ) at some temperature below the melting points of the prefect crystals

    結果表明， （ 001 ）面在低於其完整晶體的熔化溫度出現預熔。
  12. Using the modified analytic embedded - atom method ( maeam ), the molecular dynamics ( md ) simulation was performed to study the premelting and melting behavior of ( 001 ) plane of niobium and tungsten

    摘要採用改進分析型嵌入原子方法（ maeam ） ，對鈮、鎢晶體的（ 001 ）面預熔和熔化過程進行分子動力學模擬。
  13. In the process of alloy melt and infiltrate the boron carbide, reaction between the boron carbide and aluminum interface occur, the key of achieving a good interface bond is the control of the reaction between the boron carbide and aluminum interface

    研究表明，在熔融鋁潤濕碳化硼預制體並向碳化硼預制體中浸滲的過程中，取得良好界面結合的關鍵是保證在預制體達到完全浸滲前不發生過度的界面反應。
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