正焊法 的英文怎麼說
中文拼音 [zhēnghànfǎ]
正焊法
英文
face-up bonding-
Fourth, the paper treats two kinds of hoisting projects of high alititude construction in bulk and member assembly, hositing machine and plan layout, setting up scaffold and joints, and installing trunks, branches and joints etc. then in detail discusses the method which applys total station to measure three - dimensional coordinate of dendriform structure, including selecting survey sign points, creating survey system and converting survey coordinate system etc. the paper also deep research on the welding performance, welding method, welding process, welding stress and control, welding strain and rectification, weld defects analysis and weld quality inspection, and so on complicated heterogeneity steel weld proplems
接著系統的論述了高空散裝法和分單元安裝法兩種樹狀結構吊裝方案，樹狀結構吊裝機械及平面布置，樹狀結構胎架及節點的搭設，以及樹狀結構樹干、樹枝和節點的吊裝工藝等諸多工藝問題。詳細的論述了採用全站儀對樹狀結構進行空間三維坐標測量的方法，包括測量標志點的選取、測量系統的建立及測量坐標的轉換等問題。深入地研究了樹狀結構可焊性、焊接方法、焊接工藝、焊接應力及控制、焊接變形及矯正、焊接缺陷分析及焊接質量檢查等復雜的異種鋼焊接問題。The welding technology of francis turbine runners is optimized from the view of subsection welding and local heating by numerical simulation. the result shows that welding residual tensile stress appears in the weld and its area nearby, and peak stress appears in the dangerous area of blades after practising quondam welding technology ; welding residual tensile peak stress in the dangerous area of blades can be decreased by welding both ends earlier and then welding middle section later during subsection welding, and decreasing effect on welding residual stress of the subsection welding is related to the weld length of blade outlets and welding direction of each subsection ; decreasing effect on residual stress of the local heating is direct proportional to heating time, heating temperature, heating area, and inversely proportional to cooling area, and welding residual tensile peak stress in the dangerous area is decreasing trend earlier, and then increasing trend later with heated location increased
本文利用數值模擬手段對轉輪的焊接工藝從分段焊和局部加熱兩個方面進行了優化，結果表明:採用普通工藝焊接時，葉片焊后殘余拉應力出現在焊縫及其附近區域，並且在葉片出水邊的熔合線附近（危險區域）出現了峰值;在採用優化的分段焊時，先焊兩端后焊中間的方法可以降低葉片危險區域的焊接殘余拉應力峰值，降低效果與葉片出水邊焊段長度、焊縫各段的焊接方向有關;局部加熱法降低轉輪危險區域殘余應力的效果主要與加熱時間、加熱溫度以及加熱面積成正比，與冷卻面積成反比，並且危險區域的殘余應力隨加熱區域的增大呈先降低后升高的趨勢。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。Abstract : the remedial maintenance method for broken gear shaft of small or medium equpment is introduced. the usual using can be essured after repaired
文摘:介紹了中小型設備齒輪軸折斷的修復方法。通過裝配焊接的方式修復，可保證該軸正常使用。Method of tension test for front fillet welded joint
正面角焊縫拉伸試驗方法However, the disadvantage of laser welding is the so - called post - weld - shift ( pws ). the end result is a reduction in light coupling efficiency. the shrinkage force generated by the solidification process is so great that no known mechanical structure can counteract the shrinkage from shifting the joint ? at least at the micron level
這種封裝技術最大的缺點是會使激光二極體的封裝產生焊後偏移（ pws ） ，很少有一種機械的方法可以校正這種焊後偏移到亞微米級別，目前激光錘被證明是一種很有效的校正方法，激光錘校正作用過程就是利用金屬熔化凝固冷卻產生的內應力來恢復焊後偏移的過程。The talk explains how welding affects our health and the preventive measures. emphasis is laid on the correct use of personal protective equipment
本講座說明燒焊如何危害健康及介紹各種預防措施，藉此減少其對健康的危害，闡明正確使用個人防護器的方法。Data extraction methodology of molten pool front - side geometrical parameters and back - bead width
焊接熔池正面幾何參數和背面熔寬的數據提取方法The theme is an important part of province project for tackling key problem concerning the development of minitype welding and repairing instrument suiting for working in the turbine pit, the theme is worked in the welding and grinding robot. with d - h method the kinetic coordinate and equations are built which is the base of controlling robot
本課題是省科技攻關項目「機坑內修復小型焊補機的研製」的重要組成部分，本文的研究工作是針對水輪機修復專用機器人進行的，應用d - h方法建立了此機器人的各關節之間的坐標關系及其運動學正問題方程，為機器人系統的運動控制提供了可靠依據。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。This accomplishment can promote the confirmation of welding technique from experimental qualitative seeking to data quantitative analysis and represent a new method of welding technique. it greatly improve the quality of welding, improve the validity of welding technical cards
這一成果的實現，使焊接工藝的制定從定性實驗摸索階段提高到了定量計算且有理論依據的新階段，並給焊接工藝參數的制定提出了一種新的方法，可大大提高焊接質量，提高焊接工藝卡的正確性。Abstract : in the article, some special installing methods of steel - pipe concrete column and steel structure of shenzhen saiger plaza, including installing sequence, measurement, correction, and welding, are introduced
文摘:介紹深圳賽格廣場鋼管混凝土柱?鋼結構在結構安裝方面的特殊做法，包括安裝順序、測量、校正和焊接等。In order to improve the circuit ' s input impedance, which is affected by insulating resistance of electrode leading wire, terminals and printed circuit board, electrode is connected to the meter through insulating wire of high impedance which is directly welded in the printed circuit board with insulating ring. the deviation of electrode is corrected by software and the algorithm is given
使用高阻絕緣線連接電極，並將高阻絕緣線直接焊在加有絕緣環的印刷線路板上，從而消除電極引線、接線端子和印刷線路板漏電對放大電路輸入阻抗的影響；軟體校正電極偏差，並給出校準演算法。Abstract : in this article, some high - rise steel structural lifting methods, including choice of lifting machines, lifting method, measurement and correction of columns and beams, installment of high - strengthen bolts, and welding of pegs of profiling steel boards, are introduced
文摘:介紹高層鋼結構吊裝機械的選擇，樑柱的吊裝方法和測量校正，高強螺栓的安裝，壓型鋼板栓釘的焊接。These rules consist of the total fit, the mathematics and fatigue physics, and the safety in tail predictions. an analysis of the test s - n data of 16mn steel weld joints reveals that the four models are reasonable if only considering the total fit as the conventional method did. but if by the present three rules, the appropriate models should be the normal or the extreme maximum value
根據先前提出的有限數據下良好假設分佈的確定方法，包括三個原則，即假設分佈形狀與誤差數據真實分佈形狀的一致性、預測的總體擬合效果、與疲勞失效機制的一致性和尾部預測的安全性，通過對線性均值s - n曲線擬合16mn鋼焊接頭s - n數據誤差的統計分析，說明應用一般推斷方法， 4種分佈都可合理地作為數據的統計模型，綜合考慮三原則后，極大值和正態分佈是可能的良好假設分佈。Control and reduce the deformation of welding for frame of ball nodal in such kind of steel tube as diagonal laying of quardcone and quaraune diagonal laying with double phase
兩向正交斜放類型鋼管球節點網架焊接變形的方法In comparison with other statistic test methods, the kolmogorov - smirnov test has many advantages, such as high power, simple calculation, no need for grouping artificially, and no limit of specimen numbers
與常用的其它統計檢驗方法相比，柯斯二氏檢驗方法具有功效高、計算簡單、不需要人為分組、不受樣本容量大小限制等優點，是一種可用於焊點質量穩定性正態檢驗的較為理想的方法。The closed angle produced in the welding process of two round pipelines with the same diameter can result in velocity discontinuity, which makes it sharp for such a welding process to be realized, and so the arc transition correct method is given
當焊接兩圓管的直徑相同時，施焊過程中會產生尖角，導致速度不連續，而難以在焊接過程中實現，由此確定採用圓弧過渡的修正方法。Abstract : for the square n side pipe, adopting diagonal coefficient method for the pipe roller design, it has the advantage of little procedure of design and no pre - assume parameter as well as calculated easy and accurately
文摘:對正n邊形焊管採用對角線系數法進行孔型設計，具有設計步驟少，沒有預先假設的參數，計算簡便正確等特點。分享友人