焊接變形 的英文怎麼說
中文拼音 [hànjiēbiànxíng]
焊接變形
英文
distortion from welding-
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。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。As an application of this fem preprocessing system, the simulation on the welding process of missile ’ s oil box was performed, in which the effects of the welding sequences of four web plates and welds on each web plate are primarily analyzed. the simulation results show that the deformations under varied welding sequences are almost the same. downward deflection deformation is obtained along the weld longitudinal direction in the structure as well as upward deflection deformation along the weld traverse direction
對于某型號導彈油箱結構焊接過程的數值模擬計算,主要考察了每塊立板上各段焊縫焊接順序的調整、四塊立板之間不同的焊接順序以及焊接起始端的選擇對結構焊后變形的影響規律,模擬結果表明:壁板在各種焊接順序下的整體變形規律基本相似,即焊後壁板沿焊縫縱向發生了向下的撓曲變形,中部向下變形量最大;沿焊縫橫向發生了向上的撓曲變形,壁板兩端部變形量較大,且壁板前端變形大於壁板後端。The paper describes structural features, assembling and welding procedure of the anchor box of wuhu - changjiang great bridge
介紹了蕪湖長江大橋錨箱的結構特點及組焊工藝,提出了控制焊接變形的幾項有效措施,以及採用該工藝收到的良好效果。But the welding program is complicated and the construction is very difficult so that the welding deformation and welding quality should be seriously controlled
轉子中心體與支臂連接採用工地組焊施工,可使轉子支架整體性能好,能夠保證轉子組裝質量,但焊接程序復雜、施工難度大,必須嚴格控制焊接變形和焊縫質量。But there are some technical difficults for the welding of aluminium alloy such as some broken bits being easily found, a large welding distortion can happen easily, hard to distinguish the difference between the solid metal and liquid metal colour, hard to control the temperature, a lot of air holes can be seen in the welding line and so on
但是鋁合金熔化焊時的技術難點在於:焊接時易引起夾渣,焊接變形大,金屬的固態和液態的色澤不容易區別,焊接操作時控制溫度困難,容易產生氣孔等等。如果焊前清理工作不是很好,檢測氣孔往往超標。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。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。The commonly used methods of connections, especially the high - strength bolted connection and welding with bolting mixed connections are discussed in more detail. the analysis for the problems, such as partial penetrated butt weld and welding deformation is also discussed in the paper
對工程中採用較多連接如高強度螺栓連接、栓-焊混合連接等作了較深入分析;對工程中容易出現問題連接如不焊透的對接焊縫計算方法及可能出現的焊接變形及處理等問題也作了較深入探討。Assembly ? welding sequence : the configuration which had been whole assembled can decrease welding deformation for configuration rigidity had been added
裝配?焊接順序:將結構總裝后進行焊接,由於結構剛性增加,可以減少焊后變形。The welding start location has little effect on the deformation of the structure
焊接起始端的選擇對壁板焊后變形影響不大。Welding energy definition : if the welding energy definition is larger, the welding deformation will be larger too
焊接線能量:焊接線能量越大,焊接變形越大。The electron - beam welding deformation research for the static vane loop of the gas turbine compressor
燃氣輪機壓氣機靜葉環電子束焊接變形研究Groove length and shape : if the weld is longer or the the vacuum of groove is larger, the welding deformation will be larger
坡口長度和形式:焊縫越長,焊接變形越大,坡口內空間越大,變形越大。In this paper, by studying of ship steel structure, the modeling and applications of rbf neural network to ship - welding distortion are proposed
摘要以船舶鋼結構為對象,研究了rbf神經網路在船舶焊接變形中的建模及應用。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This article emphatically introduce the controlling methods and resolving means about the weld distortion which is always met in steel structure manufacture like bridge, architecture, watercraft, stress vessel
摘要著重介紹了橋梁、建築、船舶、壓力容器等鋼結構製造中經常遇到的一個比較棘手的問題焊接變形的控制方法和解決方案。Factors including welding sequence being input of the network, and welding distortions being output can make the resulting network which is used for the model of welding distortion and its fast forecasting
以焊接順序等因素作為網路輸入,以鋼結構板材凹凸變形為輸出,訓練生成網路焊接變形模型,可用於預測船舶鋼結構焊接變形量的快速預測。Test results show that the formation of protective nut by laser welding have narrow heat affect zone and minimum organization grow up inclination, gentle hardness gradient, and the protective cover is nearly not out of shape
研究結果表明,防護螺母激光焊接成形具有最窄的熱影響區和最小的組織長大傾向,硬度梯度平緩,且防護罩幾乎沒有變形。Based on the head loss coefficients obtained from gardel ' s semi - empirical equations for t - junction flow and experiment of welded t - junction, the hydraulic characteristics of throttled surge tank are estimated and compared with those gotten from hydraulic experiment. 3. four different methods of determining the head loss coefficients of throttled surge tank have been employed to investigate the effect of methods afore mentioned on the accuracy of calculating surge and pressure head of throttled surge tank
給出了基於gardel關於三通管水頭損失系數的經驗公式、焊接t形三通管水頭損失系數的實驗資料及截面突變管道的水頭損失資料,計算有連接管的阻抗式調壓室在不同流態下水頭損失系數的計算方法,並將這兩種方法計算得到的調壓室局部水頭損失系數分別與模型試驗成果進行了比較和分析; 3分享友人