residual welding stress 中文意思是什麼
residual welding stress
解釋
焊后殘余應力-
Abstract : for analyzing the residual stress distributing state within the weld joint, and its effect on the performance of welding structure, when welding the ferrite pearlite steel with the austenite steel, this paper develops a finite element program to compute the interface stress of two or over two material. finally, this program is used to analyze the mechanical behavior of heterogenic joint
文摘:為了分析鐵素體、珠光體類鋼與奧氏體類鋼焊接時，焊接接頭處焊接殘余應力的分佈狀態及其對焊接構件性能的影響，研製了可計算兩種或兩種以上材料界面應力的有限元程序，並用此程序分析了異質接頭的力學行為。 -
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。 -
The failure analysis of the heating jacket indicates that the austenitic stainless steel 316l is susceptible to stress corrosion cracking under the combined action of chloride environment and residual stresses induced by welding
結果表明：加熱夾套開裂的主要原因是316l奧氏體不銹鋼不耐氯化物腐性，焊縫有一定的缺陷和腐蝕介質存在，屬於一種典型的應力腐蝕失效形式。 -
The influence of the hydrotest on welding residual stress
壓力試驗對焊接殘余應力的影響 -
Simulation on tig welding of aluminum alloy plate and residual stress predicting
鋁合金平板鎢極氬弧焊數值模擬與殘余應力預測 -
Friction stir welding process can improve mechanical properties as well as decrease distortion and residual stress
採用攪拌摩擦焊連接鎂合金可以避免熔焊時產生的焊接缺陷，且具有焊后變形小、殘余應力小等優點。 -
Application of removing welding residual stress by explosion in guizhou aluminum factory
爆炸消除焊接殘余應力在貴州鋁廠的應用 -
For more years, the welded members of steel structure are more popular than the rolled ones in china, but as is well known, the mechanical performance of welded members are effected by many factors : such as the material property of plates, the heat effect during welding process, the residual stress, the weld techniques and so on
一直以來我國使用的鋼結構構件以焊接為主，軋制的較少。眾所周知，焊接構件的力學性能將受諸多因素的影響，如焊接板材的材性是否一樣、焊接產生的熱影響以及焊接殘余應力和焊接工藝等。 -
Study on relieving residual welding stress with different heat treatment methods
不同熱處理方法消除焊接殘余應力的研究 -
The influence of welding technics parameter to welding residual stress
焊接工藝參數對焊接殘余應力的影響 -
Therefore one of efficiency means to solve cracking problem of runners is to change distribution of welding residual stress of blades, to decrease welding residual tensile stress in the dangerous area of blades or even turn to compressive stress
因此，改變葉片焊接殘余應力的分佈狀態，降低葉片危險區域的焊接殘余拉應力峰值，甚至將危險區域的拉應力轉變為壓應力，是解決轉輪裂紋問題的有效途徑之一。 -
Thermal and welding residual stress often produces in the proceeding of the electronic package, the residual stress release and thermal deformations of the microelectronics will reduce the assemble intensity between the chip and package, and then debase the electrical performance of the assemble circuit, numerous thermal cycling will lead to thermal fatigue or thermal failure of the microelectronics
電子封裝器件在生產的工藝過程中，往往會產生熱殘余應力以及焊接殘余應力，殘余應力的釋放作用及器件在使用過程中的熱變形，會降低集成電路晶元與封裝體的結合強度，進而降低集成電路的電性能，反復的熱循環，將導致器件的熱疲勞失效，嚴重時可導致矽片或陶瓷片破裂，使整個器件遭到破壞。 -
It was found that the interfacial bonding of 93w - ofc was both the joining action of ofc / w grains and that of ofc / ni - fe binders, whereas the joining of ofc to tc4 could be seen as the mutual intense diffusion effect between ofc / tc4 and as a result cu - ti intermetallic compounds were formed at the joint. the joining of tc4 - a1 and a1 - mb2 were also attributed to the result of diffusion between elements ti - al and al - mg respectively. on the other hand, residual thermal stress and stress - induced distortion were produced at the joint simultaneously due to the difference in thermal expansion coefficient of different welding " materials
研究表明， 93w與ofc的界面連接是ofc與93w中w晶粒的連接以及ofc與93w中ni - fe粘接劑的連接共同作用的結果； ofc與tc _ 4連接界面的形成是由於ofc與tc _ 4之間發生反應擴散，並由此在二者接頭處生成了cu - ti金屬間化合物的中間相； tc _ 4 - al的連接與al - mb _ 2的連接則分別是其基體元素ti 、 al之間和al 、 mg之間元素互擴散的結果，另外，由於熱膨脹系數的差異，擴散焊接后在不同焊件的接頭處存在殘余熱應力並由此引起接頭的形變。 -
Biaxial stress of ferromagnetic materials and residual stress of welding components have been measured by using the relation between barkhausen effeet based on the law of approach to saturation magnetization and internal stress
利用該技術，以近飽和磁化產生的巴克豪森效應與應力的關系，測量了鐵磁構件的二軸應力和焊接構件的殘余應力。
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