焊接系數 的英文怎麼說

中文拼音 [hànjiēxìshǔ]
焊接系數 英文
welding coefficient
  • 焊 : 動詞（用熔化的金屬修補金屬器物或使金屬工件連接起來） weld; solder
  • 接 : Ⅰ動詞1 （靠近;接觸） come into contact with; come close to 2 （連接; 使連接） connect; join; put ...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 焊接 : weld; welding; soldering; seal; sealing; sealing-in; shutting together
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. To solve these problems, a fem preprocessing system in materials joining process has been developed in this dissertation. based on this system, a welding numerical model of a missile ’ s oil box has been established and the structure ’ s distortion rules after welding have been analyzed

    本文針對這一現狀開發了一個專門針對焊接過程數值模擬的有限元前處理系統，並應用該系統建立了某型號導彈油箱結構的焊接有限元模型，分析了該結構的焊后變形規律。
  2. To validate the formulated transition element for the calculation of the hot - spot stress and stress concentration factor in the welded components by experimental results, the stress concentration factor of the experimental welded specimens carried out in the research group is calculated by using the developed plane - transition element. the calculated stress concentration factor in the two types of tested welding components agrees well with that obtained from the experimental result. and the calculated result on the tendency of hot - spot stresses agrees well with that from the measured result

    為了驗證文中構造的過渡單元模型用於分析焊接節點附近的應力集中問題的正確性和有效性，進一步又對過渡單元模型進行實驗結果驗證，採用平面過渡單元模型計算了本課題組進行的兩類焊接構件的應力集中系數，並與根據實測方法得到的應力集中系數進行了比較，計算結果與實驗測試得到的應力集中系數和相應的熱點應力變化趨勢比較吻合，為本文建立的過渡單元的實際應用提供了初步的基礎。
  3. In order to study the characteristic signals according to the quality of the welding with dissimilar gaps, the self - made real - time monitoring system with coaxial sensors is applied to acquire and extract coaxial signal, and then the signals are analyzed with modes analysis, subsection power analysis and wavelet analysis

    摘要為了研究不同間隙下激光拼焊的焊縫質量及其對應的信號特徵，採用自製同軸傳感系統採集提取多種間隙下焊接時的同軸光信號，並對信號進行眾數分析、分段功率譜分析和小波分析。
  4. Aimed at the automatic welding of the air - separate equipments. a computer control system for double - side automatic tig erect welding has been developed in this paper, which can keep the welding parameters of two welding torches consistent, and adopt a high - power and centralized energy fountain, and can take warm - up casually. the control system can assure a higher welding quality and a better work condition and a higher productivity than before

    為實現空分設備的焊接自動化，本文研究開發一種雙面自動tig立焊計算機控制系統，採用大功率和能量集中的熱源，克服了由於預熱而使手工焊接工人勞動環境的惡化，同時使得兩把焊槍的焊接參數保持一致，從而可得高的焊接質量，改善焊工的勞動條件，大大提高勞動生產率。
  5. Cnc took over glass cutting, pattern making, electrical discharge machining, steel - mill roll grinding, coordinate measuring, electron beam welding, tube bending, drafting, printed circuit manufacturing, coil winding, functional testing, robots, and many other processes

    從玻璃切割、樣式設計、發電機電流負載、鋼廠滾動打磨、坐標測量、電子束焊接、彎管製作、起草方案、印刷電路製造、線圈纏繞、功能檢測到自動機械等許多過程都已由數字計算機控制系統控制完成。
  6. Our company is a worldwide leading specialist manufacturing welding products. our product includes : stick, tig, mig, sub - merged arc welders, engine driven weldiers, robotic welding systems, new generation with high technology digital communication and waveform control technology. we also manufacture full line of welding consumables

    本公司是世界著名的焊接產品生產廠家，產品包括手工焊機、氬弧焊機、氣保焊機、埋弧焊機、引擎驅動焊機、機器人自動焊接系統以及具有高科技數碼傳輸和波型控制技術的新一代焊機，同時還生產各種規格的焊接材料。
  7. Then an thorough computer modeling using finite element program with material, geometry and state triple - nonlinear taken into account is carried out on a series of influencing factors, such as comparison with npn - beam splice connection, comparison of varies designed theories, and the varying of fraction coefficient, diameter, grade, pretension and arrangement of bolts, thickness of web and flanges of beam and column, splicing location, axial loading on column, etc. lots of useful conclusions are drawn form computer modelling. finally, design and construction suggestions are given out. this study fills the black in the field of steel beam - to - column connection with cantilever beam high - strength bolted - splicing at both home and abroad

    然後，本文在考慮材料、幾何和狀態三重非線性的基礎上，對該連接形式進行了全面的計算機模擬，主要考慮了帶懸臂梁段全螺栓拼接的樑柱連接節點與無拼接的樑柱連接及翼緣對接焊接腹板拼接的連接節點的對比，各種設計方法之間的對比，以及翼緣拼接和腹板拼接的螺栓間距、直徑和數量，拼接點與梁端之間的距離，梁和柱的翼緣、腹板厚度，柱的軸力，接觸面的摩擦系數，翼緣和腹板拼接板的厚度等因素的影響。
  8. The main content is design of digital man - machine interface system, a speed regulating system of good stabilization and dynamic performance ; software for appraising the performance of wire feeder. the first, a digital man - machine interface system using at89s8252 singlechip is designed. the system uses sd7218a keyboard / display chip with serial bus interface

    首先，人機交互系統選用at89s8252為核心控制晶元，選用具有串列總線介面的sd7218a鍵盤/顯示晶元完成了數字化人機交互系統軟、硬體設計;採用rs - 485總線實現主控系統和人機交互系統的數據交互;系統採用數字編碼器和鍵盤配合的方式實現焊接參數的選擇和設定，同時還具有最優參數存儲、調用等功能。
  9. Results show that the brittle fracture is mainly caused by hydrogen brittleness that results from the oxidation arid absorbing hydrogen of copper tube during braze welding

    同時在加熱和冷卻時，由於異種材料的熱脹系數差別過大，產生的較大熱應力作用於已存在的裂紋，促使裂紋二次擴展，甚至使得晶粒脫落產生空洞，最終導致焊接接頭漏氣失效。
  10. The planeness and integrality of the flier - plate were ensured effectively by exerting restrictive pressure, controlling heating and cooling rate, lowering welding temperature or reducing welding time as much as possible, etc. theoretical model of creating quasi - isentropic compression via 93w - ofc - tc4 - a1 - mb2 system flier - plate with graded wave impedance was established, and numerical simulation of the impact process was then carried out

    採取施加外部機械力、控制升降溫速率以及盡量降低焊接溫度或減少焊接時間（防止脆性金屬間化合物的過度增長）等措施，確保了焊接接頭的平整性和界面結構的完整性。建立起梯度飛片擊靶的理論模型，對93w - ofc - tc _ 4 - al - mb _ 2系波阻抗梯度飛片的擊靶過程進行了數值模擬計算。
  11. According to the model of structure fatigue damage fractal evolution, the relation between macro - damage variable, fractal damage variable and fatigue life can be found, and the fatigue damage evolution equation of ti alloy tc11 welded joint can be built, and the method of more forecast fatigue damage is given

    根據結構疲勞損傷分形演化模型，通過對tc11鈦合金焊接試件的疲勞試驗和疲勞斷口分維數測量，得到了宏觀損傷變量和分形損傷變量與疲勞壽命的關系，建立了tc11鈦合金焊接接頭的疲勞損傷演化方程。給出了進一步疲勞損傷量預測的方法。
  12. The reduction factors derived from curve fitting based on calculation results by the finite element program ( ansys ) considering all kinds of damages such as cutouts, corrosion, cracks, denting, initial deflection and residual stress are introduced to modify the effective width of perfect panel in the present paper

    本文考慮板中可能存在孔洞、腐蝕、裂縫、局部撞損和初始焊接變形或殘余應力等損傷和初始缺陷，對不同的損傷形式用有限元程序（ ansys ）進行大量的計算，通過曲線擬合的方法引入折減系數對完好板格的有效寬度進行修正。
  13. This article describes a way of special ultrasonic system which monitors thermal stress in seamless welded rails. this monitoring system is a non destructive testing system, which adopts avr mcu and high - precise time chip processing as the core of it, and adopts the critically refracted longitudinal wave as the object of measuring. my studying focuses on the theory of the monitoring system, which will be listed in this arctile : according to the snell theory, the theory of motivating of critically refracted longitudinal wave is described in details, and the finite element software is used to emulate the propagating course. the formulas of calculating the pts of swr are taken from the acoustoelasticity theory, and the calculating the parameters is introduced. according to assemble materials, three kinds of ways of monitoring the pts of swr using critically refracted longitudinal wave are described, which are measuring the sound - time in changeless distance, ultrasonic critical - angle refractomery and frequency spectrum, the first way of ways is used in this experiment system. the factors, which effect the monitoring system, are assaid in some degree based

    本文的研究工作重點在無縫焊接鋼軌溫度應力測量系統的理論模塊，包括根據snell原理，研究極限折射縱波的激發機理，並使用有限元軟體ansys進行模擬;根據聲彈性理論以及公式推導出計算無縫焊接鋼軌中的溫度應力的公式，並對其中參數的求解方法進行介紹;根據收集的資料，介紹了三種使用極限折射縱波測量無縫焊接鋼軌溫度應力的方法，即固定距離測量聲時法、臨界角折射法和頻譜分析法，本實驗系統使用的是第一種;根據實驗經驗以及相關資料，分析了影響極限折射縱波測量溫度應力的幾個因素，並提出了相應的解決方法;根據實驗系統的需要，獨立設計並加工出相關配套的實驗設備，包括實驗鋼塊、有機玻璃楔塊、固定件、載荷外框裝置等。
  14. The system can simulate welding expert to help technicians to complete procedure parameter design, set down wps and save them. besides the mechanical property and chemical composition of low carbon & low alloy steel, the weldabiliry and the defect forming analysis of them have been given in the system. furthermore, the estimation of welding cost and welding procedure files management can be accomplished

    系統能模擬焊接領域專家輔助設計人員進行焊接工藝參數的設計，編制出wps並保存文件；能進行簡單的焊接成本估算；能實現鐵路、橋梁及其它鋼結構生產中常用的低碳及低合金鋼及其焊接材料的力學性能和化學成分的查詢；能進行母材焊接工藝性以及常見焊縫缺陷成因分析與對策等的咨詢；能對各工藝文件進行有效的管理，包括對圖片的管理，能實現簡便地查詢、靈活地調用等。
  15. Energy estimating approach of fatigue crack initiation life for welded steel structures is obtained by using molski - glinka energy density equation, introducing the worst - case fatigue notch factor, and considering the effects of residual stress on fatigue

    本文採用應力應變能密度的molski - glinka方程，建立了一種預測焊接鋼結構疲勞裂紋形成壽命的能量方法。該方法引入了極值疲勞切口系數，並考慮了焊接殘余應力對裂紋形成壽命的影響。
  16. In the closed loop, the information is transmitted to dsp from mcu and compared to the feedback data. then, the result would be transmitted back to the mcu for adjusting the wfs, voltage and so on to the setting values

    採用閉環控制系統，將這些參數與反饋的數據比較、計算后，再通過da輸出來調整和控制送絲速度，焊接電壓等，使其保持在設定值。
  17. Through the man - machine interaction system which consisted of lcd ( liquid crystal display ) and keyboards, we can select welding parameters, such as the way of welding, diameter of the wire, wire feed speed, current, voltage and so on

    主要過程是:通過lcd （ liquidcrystaldisplay ）與鍵盤組成的人機交互系統選擇已存儲在單片機flash中的焊接參數，包括焊接方法、焊絲直徑、送絲速度、焊接電流、焊接電壓等。
  18. Comparing shear strength of different welded fabrics and concerning the microstructure of welds welded with different parameters, the relationship between shear strength and microstructure was studied

    摘要比較了具有不同焊接參數的鋼筋焊接網的剪切力曲線，分析了不同焊接參數所對應的微觀組織及其成因，研究了鋼筋焊接網的剪切性能和微觀組織之間的關系。
  19. The result shows that the new control system has convenient parameter modification, perfect controlling flexibility, rapid dynamic response speed, stable welding procedure ; the das of welding parameters has strong ability of anti - disturbance and the data is reliable. the control effect and practicability of the diagnosis system judging the welding quality are both good by using the characteristic values of welding process such as the percentage of the flashing time. gray - spots flaw in flash welding joints of rail is the least when the pole moves to and fro at the same velocity and the speed is slow

    結果表明：新型控制系統參數設置修改方便，控制柔性好，動態響應速度快，焊接過程穩定；焊接參數採集系統抗干擾能力強、數據可靠；以閃光時間百分比等焊接過程特徵量為判據診斷焊接質量效果好，實用性強；當動立柱的前進、後退速度相同且為低速時，鋼軌接頭中灰斑缺陷數量最少。
  20. The control panel of this preprocessing system is simple and convenient. the friendly interface between computer and human allows the users easy to complete all the preprocessing operations, including the model ’ s meshing, the setup of the material parameter and welding processing parameter, the initial conditions and boundary conditions ’ definition etc, preparing for the simulation subsequently. so any operator with lack of knowledge in fem or english can finish the welding simulation during using this preprocessing system

    該前處理系統界面簡潔明了，操作簡單方便，用戶按照該系統界面進行操作即可完成模型網格劃分、材料性能參數的輸入、熱源模型選擇及焊接參數的輸入、以及初始條件和邊界條件的設置添加，為模擬計算做好準備，從而使工廠的一般技術人員也能完成焊接過程的模擬計算。
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