預成形工藝 的英文怎麼說

中文拼音 [yùchéngxínggōngyì]
預成形工藝 英文
preforming technique
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 工 : Ⅰ名詞1 （工人和工人階級） worker; workman; the working class 2 （工作; 生產勞動） work; labour 3 ...
  • 藝 : Ⅰ名詞1 （技能; 技術） skill 2 （藝術） art 3 [書面語] （準則） norm; standard; criterion4 [書面語...
  1. Meanwhile, based on the magnetic material theory, a complete analysis and summary are carried out on the three crystal structure and technology theory ; especially the ingredient analysis is made on the microscopical morphology and x - ray diffraction and its mixtures existence and relevant metallurgy about the typical second resource such as coldrolling iron and oxide red, steelmaking sludge and feso4 based on the practeal investigation of the pre - burning materials in domestic products plant, especially the analysis on the domestic markets and components, and connecting with reality and material characters in panzhihua iron and steel ( group ) cmpany, we established the product orientation and developing direction in panzhihua iron and steel ( group ) company ; after carrying out the technology reform on the old no. 1 magnetic product plant of enterprise company, making a detailed study on the various conditions for establishing a plant, the feasible research report is formed of 1400 tons ( per year ) feo preburning material and 3000 tons ( per year ) middle and high quality magnetic products ; so a necessary and reliable supports are provided both theoretically and practically for the development of the magnetic industry in panzhihua iron and s teel ( group ) cmpany

    同時，對磁性材料的理論基礎，尖晶石、磁鉛石、石榴石三大晶系結構以及其工工藝理論進行了較為全面的歸納、分析和總結；尤其針對攀鋼產生的二次資源如冷軋鐵紅、煉鋼污泥、硫酸亞鐵等三種典型原料分別作了成分分析、微觀物理形態以及x光衍射分析、其夾雜物的存在形式及相應的金相分析。對國內鐵氧體磁性材料的預燒料及磁件生產廠家的工藝、設備、技術、成本、質量狀況進行了實地的調研，特別是對國內磁性材料的市場及競爭對手進行了詳盡的分析，在此基礎上，結合攀鋼實際及原料特點確立了攀鋼發展磁材產業的產品定位及發展方向；對企業公司原有磁件一廠進行了技術工藝改造，對建廠各項條件進行了詳細的分析，形成了了年產14000噸年鐵氧體預燒料以及3000噸年中高檔磁件產品的可行性研究報告，從理論上和實踐上為攀鋼磁性產業的發展提供了必要的可靠的依據。
  2. Secondly, paper introduces the composition structure and the manufacture craft characteristic of airplanes, describes the structure and the main assembly process and the assembly characteristic of the n # fuel tank section, points out the assembly accuracy control of the n # fuel tank section. thirdly, paper analyses in detail problems which exist in the current riveted assembly of the n # fuel tank section, proposes the improve measures against the existent problems. finally, paper forecasts in theory the positive effect that the new plan will bring, introduces the practical result after approval test, analyses the differences of both

    具體做了以下幾方面工作:第一，詳細闡述了工作研究的基本原理;第二，介紹了飛機的組成結構、飛機製造工藝的特點、 n #油箱段的主要結構、 n #油箱段的主要裝配過程、 n #油箱段的裝配作業特點和n #油箱段的裝配準確度的控制方法;第三，具體分析了n #油箱段鉚接裝配生產線現行作業中存在的問題，針對存在的問題，提出了具體的改進建議，並形成了新的改進方案;第四，從理論上預測了新方案將會帶來的積極效果，介紹了新方案在現場試驗驗證的實際結果，並對兩者之間存在的差異進行了對比分析與研究。
  3. Aiming at technical features and technology requirements for cold bending forming production line of steel bar for packing case, equipment including in such line has been introduced with emphasis on working principle and devices for burr trimming and opening piercing, on control principle of hydraulic expanding and flying shearing on the line

    摘要針對包裝箱鋼條冷彎成形生產線的技術特點及產品工藝要求，介紹了包裝箱鋼條冷彎生產線的設備組成；重點闡述了包裝箱鋼條的在線預沖毛刺及豁口孔設備的工作原理及裝置、包裝箱鋼條產品的在線液壓擴孔及液壓飛剪技術的控制原理。
  4. How to ensure the project implement safely and effectively, esp in the complicated condition of geology, the terrain and its features, is the key to restrict the project finishing successfully ; in this paper, the theoretic analyse and pratical study based on the extension of 309 country road ( from wuan to shexian in hebei province ), adopt the method of theoretical analyse, caculater and experiment, improve the controlling blasting skill and construction crafr of roadbed stonework, control the blasting harm effectively, accomplish the construction quickly and safely in normal conditions. the paper puts forward to the relative parameter applying to roadbed extension in beforecrack blasting, and raises the combination of beforecrack demolition and buffer demolition, which is the main way to conctrol the side - slope stable and taking shape. putting to use the achievement produces great social benifet and economic benefitjt has widely practical future

    特別是在復雜的地質，地形及地物條件下，如何保證工程的安全快速有效實施成為制約工程順利完成的關鍵。本文的理論分析和實踐研究以國道309河北武安至涉縣段改建工程為依託，採用理論分析計算與現場試驗相結合的方法，研究並優化了路基石方控制爆破技術與施工工藝，有效控制了爆破危害，實現了保證現有公路正常運營條件下的快速安全施工，本文提出了在預裂爆破中適合於路基擴塹工程的有關參數。同時提出了預裂爆破與緩沖爆破相結合是控制邊坡穩定和成形的主要途徑。
  5. 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。
  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. This product is absorbing all forms of domestic and foreign prefabricated substation and development, high pressure, low voltage electrical equipment, distribution transformers trinity, with perfect protection, a flexible combination of superb technology will be mainly used to replace conventional civil engineering - type substation ; deep into load centers, widely used in high - rise buildings, petrochemical plants, power plants, subways, railway stations, wharves, airports, schools, hospitals and other important establishments population is concentrated

    本產品是吸收國內外各種形式的預裝式變電站而開發的，高壓、低壓成套電器、配電變壓器三位一體，具有完善的保護、靈活的組合、精湛的工藝，主要用於取代傳統土建型變電站；可深入負荷中心，廣泛用於高層建築、石油化工廠、發電廠、地鐵、車站、碼頭、機場、學校、醫院等人口集中的重要場所。
  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. This thesis work has researched the fabrication technics of photonic crystal defect waveguide with air - bridge structure and collecting waveguide ; suggested using uv - lithography and wet etching to fabricate traditional waveguide, after that, using eb - lithography and dry etching to fabricate photonic crystal holes, so can reduce the fabrication cost by a big range ; designed the moulding board, which can fabricate the air - bridge structure and is convenient for recognizing position in eb - lithography ; the structure consisted of traditional waveguides and etching grooves are fabricated on soi successfully, then an successful eb - lithography is realized on the structure, the defect waveguide collected with the traditional waveguide quite well ; used the etching grooves to do the sacrificial layer etching experiment, which grounded etching sacrificial layer by photonic crystal holes in next step

    提出採用紫外光刻工藝製作傳統波導結構之後，通過電子束曝光和干法刻蝕製作光子晶體小孔的工藝方案，大幅度減低了製作成本；設計出可形成空氣橋結構、並且適用於電子束曝光位置識別的光刻模板，在soi材料上成功製作出帶有空氣橋刻蝕預留槽以及接續光波導的結構，在該結構上成功實現了光子晶體帶隙波導的電子束曝光，帶隙波導與接續光波導位置接續良好；最後利用預留槽進行了刻蝕犧牲層的實驗，為下一步利用光子晶體小孔刻蝕犧牲層形成空氣橋結構打下了基礎。
  10. This thesis establishes the cylinder gear and conic gear parameter serial, and analyzes their mechanics, completed the gear ' s product size - taking shape the molding size - electrode size delivers the regulation proceeded the research. establishing the design and calculation methods for the gears precision forming the craftwork parameter, forge piece, those gears precision forming perform, mould and and tool electrodes. based on the software platform of pro / engineer 2001 and visual c + +, the system is consisted of capp and cad, which are used for forming process and mould design for the gears, are studied and developed

    本文對圓柱齒輪的精密模鍛和圓錐齒輪的冷擺輾成形工藝及其力學本質進行了系統的研究，分析了齒輪精密成形的影響因素，確定了齒輪零件一鍛件?電極?模具尺寸的傳遞規律，建立了齒輪精密成形工藝參數、鍛件、預制坯、模具以及電極的設計計算方法鏈。
  11. In this thesis, the basic aspects about forming process and mould for cold precision rotary forging of common bevel gear are studied with method of theory and experiment. the rules and numerical relations of dimensional precision relaying among common bevel gear part, die cavity and tool electrode are established. meanwhile, the design and calculation methods for process parameters, mould, common bevel gear forging and preform and tool electrode are established

    本論文對傘齒輪冷擺輾精密成形工藝的若干問題進行了系統的理論和實驗研究，深入分析了傘齒輪冷擺輾精密成形工藝的物理力學本質，確定了傘齒輪產品零件?模具?電極之間的幾何尺寸精度傳遞規律和數值關系，建立了冷擺輾精密成形工藝參數和模具、傘齒輪鍛件和預制坯、工具電極的設計計算方法。
  12. In this paper, by using non - linear finite element software, ansys / ls - dyna, simulate a forming of auto fall to ground skeleton part, get the contour of the semi - finished product, forecast the change of the blank thickness and the probable wrinkling, cracking, and from the simulation of the spring - back, obtain the spring - back tendency. so, get technology parameters, which are inextricable to forming production. all these will pose great significant to production in theory and reality

    本文運用非線性有限元軟體ansys ls - dyna對汽車落地骨架零件進行了沖壓成形的數值模擬，得出了毛坯外形，預測了成形過程中板料壁厚變化和可能出現的起皺、破裂現象，通過回彈模擬，預測了回彈趨勢，獲得了該類零件成形所需要的工藝參數，對實際生產具有一定的指導作用。
  13. Thus it is considered that the technique of dz formation by means of rtp may not be suitable for heavily boron - doping cz silicon. since the higher concentration vacancy could decrease the stress inducing by oxygen precipitates, the size of the oxygen precipitation with higher density was smaller in the hb si samples in comparison with the samples without rtp pre - annealing. moreover, as for the technique to generate dz by rtp in lightly boron - doping samples, it was found that the behavior of oxygen precipitation and dz was determined by the annealed temperature, followed annealing and ambient of rtf as well

    結果顯示，對于普通輕摻矽片能形成明顯的很寬的潔凈區的rtp預處理工藝，應用於重摻硼樣品時沒有潔凈區形成，所以rtp預處理獲得潔凈區的工藝不適用於重摻硼矽片，硼的大量摻雜對氧沉澱促進效果大於高濃度的空位對氧沉澱的洲排浙江大學碩士學位論文李春龍：直拉重摻硼硅單晶中氧沉澱的研究促進效果；大量空位的引入，有利於釋放氧沉澱生長過程的內應力，適當增加重摻硼樣品氧沉澱密度，減少其尺寸，並伴有層錯生成。
  14. The liquid infiltration - extrusion technology, as a new forming method which includes the liquid forging and the solid extrusion, has been developed in recent years. the process in essence is that after liquid metal is infiltrated into the fiber perform under pressure, high pressure is directly applied to it so that the melted metal is to be crystallized and solidified under pressure, and then undergoes large plastic deformation at the liquid - solid state or the state just solidified

    液態浸滲擠壓是近年來發展起來的一種融液態模鍛和固態擠壓為一體的新成形工藝，其工藝實質是使液態基體金屬在壓力下滲入纖維預制體中，發生壓力下結晶凝固，並在液-固態或剛凝固態經受大的擠壓塑性變形，一次成形出金屬基復合材料的型材類製件。
  15. According to the request of the molding technics and component ' s shape, the framework has many functions, such as fetching, directing, spreading, heating, orienting, pressing, shearing, commutating for the continuous filament tape

    根據frp構件的形狀、成型工藝要求，纖維鋪放頭機構對預浸膠纖維帶實現引出、施壓、剪切、加熱、導向、展平、定位、換向等功能。
  16. Microstructure optimal design of the forging process preform

    面向微觀組織優化的鍛造工藝預成形優化設計
  17. Regarding the lcm filling process as the newton fluid through fibrous reinforcements, the permeability of preform determines the saturating of resin in fiber, and has effects on the curing process and the quality of products. based on the darcy ' s law, the theoretical model of permeability measurement was established. and the influence of different testing methods and major process parameters such as fabric structure, fiber volume fraction, injection pressure, flow rate and resin viscosity on preform permeability were investigated in details

    文中首先根據達西定律建立了滲透率測量的理論模型，深入研究了不同的測試方法及主要工藝參數（纖維織物織構、纖維體積含量、充模壓力、流動速度、樹脂粘度）對滲透特性的影響規律，發現多孔介質增強材料的滲透率主要取決于纖維織物的結構形式，預成型體孔隙分佈及其體積分數、壓實性對滲透率有較大的影響，提高充模壓力和流動速度可以縮短充模時間，在一定程度上可以提高滲透率。
  18. Plasma enhanced chemical vapour technique ( hf - pecvd ) on monocrystalline silicon and quartz glass substrates under the low temperature. the effects of ultrasonic pre - treating of substrates, temperature, r. f

    系統地研究了襯底的超聲預處理工藝、沉積溫度、射頻功率以及氫氣對氮化硼薄膜的生長、組成及表面形貌結構的影響。
  19. Preform design is one of the key steps in precise plastic forming, and backward simulation technology plays important role in preform design

    摘要預成形毛坯設計是精密塑性成形工藝的核心環節，而反向模擬技術可以實現預成形設計的高效化、數字化和智能化。
  20. The goal of analyzing the instability in complex sheet metal forming is reached using the forming limit stress diagram as criterion in this thesis. some different sheet metal forming parts are analyzed with the developed software, whose results show that the developed software is satisfying for technological analysis of sheet metal forming and the applied module attains the anticipated goal

    並用所開發的應用軟體成功地對板成形零件的有限元計算結果進行了分析，分析結果表明，用該軟體分析板成形零件的失穩情況的結果可以滿足板成形工藝分析要求，所開發的應用軟體模塊達到了預期目的。
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