熱成形過程 的英文怎麼說

中文拼音 [rèchéngxíngguòchéng]
熱成形過程 英文
hot forming process
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 過 : 過Ⅰ動詞[口語] （超越） go beyond the limit; undue; excessiveⅡ名詞（姓氏） a surname
  • 程 : 名詞1 （規章; 法式） rule; regulation 2 （進度; 程序） order; procedure 3 （路途; 一段路） journe...
  • 過程 : process; procedure; transversion; plication; course
  1. The simulations of the blank forming process is always a very pop question in the domain of plasticity forming. it has very important significance as to making certain the figure of the blank roughcast calculating strain and stress, establishing reasonable forming craft and designing mold

    板料成形過程模擬一直是塑性成形領域研究的熱點問題，對于確定板料毛坯形狀、計算應力、應變分佈、制訂合理的成形工藝和模具設計有重要的意義。
  2. Surface states and the topmost surface atoms of the batio3 thin films have been analyzed by x - ray photoelectron spectroscopy ( xps ) and angle - resolved x - ray photoelectron spectroscopy ( arxps ). the results show that the as - grown batio3 thin films have an enriched - bao nonstoichiometric surface layer which can be removed by ar + ion sputtering, and the atomic ratio of ba to ti decreases with increasing the depth of ar + ion sputtering

    用x射線光電子能譜技術（ xps ）和角分辨x射線光電子能譜技術（ arxps ）研究了薄膜的表面化學態以及最頂層原子種類和分佈狀況，結果顯示在熱處理過程中薄膜表面形成一層富含bao的非計量鈦氧化物層，並且鋇-鈦原子濃度比隨著探測深度的增大而逐漸減小。
  3. Path of uhpm consists of two curves, i. e., a barrette - like curve reflecting the process of cold slab subduction and exhumation cold overthrusting, and a crescent curve representing the thermal exhumation after slab breakoff

    軌跡由兩部分組成，即反映板片冷俯沖冷折返過程的發夾狀曲線和指示板片斷離拆沉熱折返過程的新月形曲線。
  4. From the feature of the force and deformation of the tpih, 5 different elements are used to mesh the different zones of the tube, which are structural beam 3d elastic 4, structural pipe plastic straight 20, structural pipe elastic elbow 18, structural shell elastic 4 node 63 and contact 3d pt - to - surf 49 ; the contact problem is assumed to be flexible - to - flexible ; the temperature field is assumed to be body load. a mechanical model corresponding to reality has been established for numerical simulation. based on the above, the 3 - d fem numerical simulation of tpih has been carried out by using the ansys program

    針對加熱彎管過程的受力和變形特點，採用三維梁單元、三維塑性直管單元、三維彈性曲管單元、三維殼單元與三維點對面接觸單元等5種不同的單元分別對管毛坯不同區域進行劃分，並對接觸單元採用柔體-柔體的處理方法，將溫度場作為體載荷處理，建立了符合實際的加熱彎管問題數值模擬力學模型：在此基礎上，應用商用軟體ansys對加熱彎管過程進行三維有限元模擬與研究，獲得了成形時推力、彎矩、支撐力大小及其變化趨勢。
  5. Abstract : in the paper, the hot crack for the forging die made by methodsof squeeze casting is analyzed, how to reduce the hot crack is also given out

    文摘:從生產實際出發，分析了鍛模液態模鍛成形過程中熱裂紋形成的主要原因，提出了降低鍛模熱裂紋的幾點措施。
  6. Then, the effect of heavily doped boron on ig of czochralski silicon was also investigated. it is found that no dz ( denuded zones ) were observed in the hb samples subjected to high one - step temperature, ramping annealing respectively. for conventional high - low - high three - step ig annealing, the dz becomes narrower and bmd density is higher in hb samples than that in lb samples, as a result of hb enhancing oxygen precipitation

    結果顯示，單步高溫熱處理時重摻硼樣品不能形成潔凈區；降溫退火中，降溫速度較為緩慢（ 3 / min ）時能生成一定量的氧沉澱，但沒有潔凈區形成；普通高?低?高三步熱處理過程中，形成明顯的潔凈區，但相對輕摻樣品而言，潔凈區較窄，氧沉澱密度明顯偏高，說明重摻硼樣品吸雜能力強。
  7. During the temperature fields, the results indicate that the processing parameters such as the extrusion velocity, casting temperature, perform preheating temperature, die preheating temperature and so on are important for the temperature fields besides the dwell time. they are must be in concordance each other to the deforming zone is in the quasi - solid state, and the stable semi - solid extrusion is implemented. during the deforming fields, the hyperbolic sine thermo - rigid - viscoplastic fem model is selected according to the forming feature of the process, and the variations of the stress - strain fields are studied

    在溫度場的模擬中，模擬結果表明，保壓時間是影響製件成形質量的關鍵因素之一，擠壓速度、液態金屬澆注溫度、預制體預熱溫度和模具預熱溫度等工藝參數對溫度場的影響也很大，需進行參數之間的協調，只有當變形區內部始終維持準固態時，才能實現穩定的液-固擠壓成形過程；在變形場的模擬中，根據液態浸滲擠壓的成形特徵，選用了雙曲正弦剛-粘塑性有限元計算模型，研究了變形過程中應力應變場的變化規律，研究了模角對變形和金屬流動的影響及變形力的變化過程和其影響因素。
  8. The process parameters of electric upsetting include : velocities of upsetting cylinder and anvil cylinder, heating current, preheating length and time, etc. because different materials have different mechanical, electric and thermal characteristics, and there are effects between different parameters, the determination of those parameters becomes a complex problem

    電熱鐓粗成形過程的工藝參數主要包括鐓粗缸活塞運動速度、砧子缸活塞運動速度、鐓粗壓力、加熱電流和預熱長度等。這些參數的選擇是一個復雜的問題，其復雜性不僅在於不同的材料具有不同的力學、電和熱傳導特性，而且各參數相互影響、相互制約。
  9. By increasing the h2 dilution ratio, it is found that atomic hydrogen can selectively etch amorphous phase and stabilize crystalline phase. from the study on the distance from substrate to catalyzer, choosing a proper distance can ensure the gas fully decomposed, while a relatively low substrate temperature can cause the nanocrystalline particles to lose mobility and keep their sizes. the pre - carbonization process can enhance the nucleation density and make the growth of high quality nanocrystalline p - sic films much easier

    實驗結果表明：隨著工作氣壓的減小，薄膜的晶粒尺寸有所減小；通過提高氫氣稀釋度，利用原子氫在成膜過程中起的刻蝕作用，可以穩定結晶相併去除雜相；選擇適當的熱絲距離能保證反應氣體充分分解，又使襯底具有較高的過冷度，是形成納米薄膜的重要條件；採用分步碳化法可以提高形核密度，有利於獲得高質量的納米- sic薄膜；襯底施加負偏壓可以明顯提高襯底表面的基團的活性，因負偏壓產生的離子轟擊還能造成高的表面缺陷密度，形成更多的形核位置。
  10. The crystal structure of the martensite as quenching state, the variation of the structure of the martensite during non - isothermal aging in the martensite and parent state, under successive deformation condition and under thermal cycling condition in the cu - based shape memory alloys are studied by the x - ray diffraction

    摘要運用x -射線衍射分析技術研究了不同成分銅基形狀記憶合金淬火態馬氏體結構、馬氏體狀態非等溫時效過程中結構的變化規律、母相狀態時效和連續變形過程中馬氏體及母相結構的變化規律以及熱循環過程中馬氏體結構的變化情況。
  11. Aim : to analyze the mechanism, thermadynamic theoretical basis, dynamic mechanism and influencing factors of thermally induced phase separation ( tips ) in order to completely grasp the factors affecting the size, distribution and form of pores, so that the adjusted range of pore can be widened and the preparation of porous membrane can be repeated and controlled. methods : considering from the structural characteristics of tissue engineered materials, the methods of preparing porous membrane using tips technique, the hermadynamic theoretical basis, dynamic mechanism and influencing factors were analyzed, the problems and investigative directions in the future were also analyzed. tips technique is a process of phase separation of polymer homogenous solution under quenching, and it is suitable for diameter and structural form of the micropore materials prepared using tips are closely correlated with the kind and dispensing proportion of polymer attrnuant, polymer concentration and polymer molecular mass, etc. conducted, including determination of polymer - solvent system phase diagram, study of form and appearance of porous membrane of different thickness, study of form and appearance of porous membrane prepared with systems of different x, which is the parameter of polymer - solvent interaction

    目的:分析熱致相分離成膜過程的機理、熱力學理論基礎、動力學機制以及影響因素，以便充分掌握影響孔度大小、分佈、形態的因素，使孔度調控范圍得以拓寬，使多孔膜的制備能重復可控.方法:從組織工程材料結構特點出發，分析熱致相分離聚合物多孔膜的制備方法及該法成膜的熱力學理論基礎、動力學機制以及影響因素.並分析實驗中存在的問題及今後的研究方向.結果:以熱致相分離法可制備聚合物多孔膜.熱致相分離法制備多孔膜是高聚物均相溶液在淬冷條件下發生相分離的過程，它適用於上臨界共溶溫度型聚合物一稀釋劑二元體系.熱致相分離法成膜的過程，可以認為是旋節線機理佔主導地位.熱致相分離法制備的微孔材料，其孔隙率、孔徑大小、結構形態與聚合物稀釋劑的種類、組成配比、聚合物濃度、聚合物分子量等因素密切相關.結論:可採用熱致相分離技術制備多孔膜，通過改變不同的成膜條件可獲得一系列不同孔徑尺寸和孔徑分佈的多孔膜材料.對熱致相分離成膜過程中聚合物-溶劑體系的相圖測定，不同厚度的多孔膜形貌研究，不同x （聚合物-溶劑相互作用參數）體系所制備的多孔膜形貌等需深人研究
  12. The results show that the chemical composition of substrate surface and the heat - treatment regime are the major influencing factors on the formation of silver nanoparticles. during the heat - treatment, sn2 + in the bottom face of the float glasses reduce ag + to ag ? which is the key to form silver nanoparticles

    結果表明，在樣品的熱處理過程中，浮法玻璃下表面的sn ~ （ 2 + ）將ag ~ +還原成ag ~ 0 ，這是銀粒子形成的關鍵；基片中的na ~ +與復合膜中的ag ~ +互擴散促進了銀納米子的形成。
  13. The formation process of w - type ferrite underwent from oxide of metal, the m - type transition phase to final w - phase. when the heating rate was 5 / min, at 900 for 3 hrs and 1200 for 4 hrs, pure m - type and w - type ferrites were formed in air respectively. with heat treatment temperature increasing, crystal structure was more intact, the saturation magnetization increased and the coercive force decreased

    熱處理過程表明， m型鐵氧體直接由金屬氧化物反應形成，未經歷尖晶石中間相； w型鐵氧體形成由金屬氧化物到m相過渡相最終向w相的轉變；當升溫速率為5 min ，溫度在900 ，保溫3小時和1200保溫4小時，就分別形成單相m相和w相鐵氧體；隨著熱處理溫度的升高和保溫時間的延長，衍射峰變尖銳，結晶更完整，空心微球的飽和磁化強度增大，矯頑力減小。
  14. A hysteretic loop is also found in this system and its influencing factors are analyzed to discuss the condition of its occurrence, which is expected to help further understanding the mechanism of thermoacoustic oscillation

    針對不同的加熱功率和充氣壓力，系統地研究了起消振過程中的溫度、壓力變化特性，著重分析了滯后迴路形成的過程和影響熱聲系統滯后迴路的因素，指出滯后迴路存在的條件，對深入理解熱聲系統的起消振行為具有參考意義。
  15. Additional annealing experiments in nitrogen atmosphere revealed that the heavily damaged region with hydrogen - induced defects appears to be the adsorption center for the outside oxygen to diffuse into the silicon during the high - temperature annealing process, and consequently, broaden the thickness of the box layer. this important finding may provide a possible solution to reduce the cost of the conventional simox - soi wafers while maintaining a desirable box thickness

    獨特設計的氮氣氛退火及分步退火實驗證明了原注入樣品的缺陷層中氫及氫致缺陷的存在使得在退火過程中加速外界氣氛中的氧擴散進來，並成為強捕獲中心使擴散進來的氧滯留于缺陷層從而促使氧缺陷層中的氧沉澱生長，加速了高溫退火中的內部熱氧化過程，從而形成了比傳統相同劑量simoxsoi厚得多的氧化埋層。
  16. The formation of a new set of strain - free grains within a previously cold - worked material ; normally an annealing heat treatment is necessary

    在冷塑性變形材料的內部生成等軸狀新晶粒的過程叫再結晶，通常發生於再結晶退火熱處理過程中。
  17. In the process of preparing powder, xrd, dsc, ir, sem modern measuring method are used to determine the parameter of experiment, study on the forming mechanism of sol - gel and transition from dried gel to mullite after thermal treatment, and in the end radius of grain of forming powder is tested

    在制粉過程中，我們藉助xrd 、 dsc 、 ir 、 sem等現代化測試手段，制定了工藝參數，研究了溶膠凝膠形成機理及過程、干凝膠在熱處理過程中向莫來石轉變的過程，並對形成的粉末進行了粒徑測試。
  18. A 3 - d fem model was built up, which included a non - linear coupled thermal - mechanical analysis accounting for the temperature dependency of the thermal and mechanical properties of the material

    建立了成形過程的三維非線性熱力耦合有限元模型，模型中考慮了材料熱物性參數和力學性能參數與溫度的相關性。
  19. The phase formation process and mechanism are also investigated : during the refluxing process of the pf6 - containing mixture, pf6 - reacted with the calcium ion in the mixture and nano - scale particles formed. after tray - drying, these particles remained with amorphous calcium phosphate. during the subsequent heat - treament, caf2 react with amorphous calcium phosphate and fha phase or fa phase formed

    研究發現其形成fha相的過程為：加入hpf _ 6 （或nh _ 4pf _ 6 ）的混合液經迴流后， hpf _ 6 （或nh _ 4pf _ 6 ）發生分解生成納米級的具有較高反應活性的caf _ 2相，在隨后的熱處理過程中，該相與產物中其餘的非晶相鈣磷酸鹽反應最終生成fha相或fa相。
  20. The formation process and mechanism are investigated : the adding of n ( ch2ch2oh ) 3 promoted the dissociation of cf3cooh in the starting solution and some non - volatile, fluorine containing intermediates can be remained after tray - drying of the solution. during the following heat - treatment process, the intermediates decomposed and further react with the rest amorphous calcium phosphate, leading to the final formation of fha or fa phase. the fluorine content in the fha phase obtained could be tailored by the content of cf3cooh added.

    發現cf _ 3cooh只有在加入n （ ch _ 2ch _ 2oh ） _ 3的條件下才能形成fha相和fa相，其機理是：在溶液中加入n （ ch _ 2ch _ 2oh ） _ 3能夠促進溶液中cf _ 3cooh的離解，形成無揮發性的含氟過渡化合物，溶液快速乾燥后的中間產物中仍能保留過渡性的含氟化合物，在隨后的熱處理過程中，過渡化合物分解並與非晶態的鈣磷酸鹽反應最終生成fha相或fa相。
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