焊接循環 的英文怎麼說
中文拼音 [hànjiēxúnhuán]
焊接循環
英文
weld cycle time- 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 ...
- 循 : 循動詞(遵守; 依照; 沿襲) follow; abide by
- 環 : Ⅰ名詞1 (環子) ring; hoop 2 (環節) link 3 (姓氏) a surname Ⅱ動詞(圍繞) surround; encircle;...
- 焊接 : weld; welding; soldering; seal; sealing; sealing-in; shutting together
- 循環 : circulate; circle; round; repeat; loop; period; recurrence; cycling; circulating; mixing; circula...
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Industries with particularly high potential exposures include : construction work involving welding, cutting, brazing or polishing on lead surfaces and application of lead solder ; most smelter operations either as a trace contaminant or as a major product ; secondary lead smelters where lead is recovered from batteries ; and firing ranges
有機會接觸鉛的工作包括:在建築業中,在含鉛的表面上進行焊接切割鍍焊或打磨粉飾以及使用鉛錫作焊接在采礦業中,提煉鉛或其他元素的工種在回收業中,把電池中的鉛再循環利用以及彈藥製造工作。The effect of heat pipe on the thermal cycle during welding and haz
熱管對焊接熱循環和焊接熱影響區的影響This dissertation is one of the sub - problems of " computer dynamic test and calculation of welding heat - cycle ", which is a project on natural science fund
本文是自然科學基金項目「焊接熱循環的計算機動態測試與計算」的一個子課題。Combining cae / capp and welding techniques, we construct the mathematical model of 16mnr welding temperature field using theory of welding heat - conduction, then validate it by experiments
將cae / capp技術和焊接技術相結合,應用焊接傳熱理論首先建立了16mnr焊接溫度場數學模型及焊接熱循環的特徵參數模型,並通過實驗驗證了該數學模型正確的。With the model, the simulation of welding process is achieved, and the needed technical parameters of the tissue of welding line are obtained, further more, we can predict the tissu e of welding line by the existing welding heat - cycle technical parameters
該數學模型的正確建立,使16mnr焊接冶金過程的模擬得以實現,通過模擬可以得出所需焊縫組織的焊接工藝參數,同時也可以通過根據現有的焊接熱循環工藝參數預測焊縫組織。However, the die attach layer delaminated after 500 cycles and pcb cracked in the underfilled samples after long time cycling. c - sam is employed to investigate the delamination in the underfilled samples. highly concentrated stress - strain induced by the cte mismatch between the bga component and the pcb board, coarsened grain and two kinds of intermetallic compounds ( nisn / nisns ) which formed during reflow and thermal cycle and their impact on the reliability of solder joints are discussed in this paper
充膠樣品粗化尤為嚴重; ? ni - sn金屬間化合物包括兩層:其中,靠近ni焊盤的那層比較平整,同時, eds結果分析表明其化學式近似為nisn ,而靠近焊料的那層呈板條狀,化學式近似為nisn _ 3 ,文獻表明其為亞穩相; ?充膠使得樣品最大應力范圍降了接近一個數量級並降低了dnp的作用,同時,器件失效模式變為晶元粘接層分層; ? c - sam結果表明本論文採用的充膠樣品,晶元粘接層分層起始於500周左右,而經過2700周循環的樣品,分層幾乎擴展到整個界面。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。Based on the predicting model of effective stress concentration factor, estimating methods of s - n curve for welded steel structures are set up under symmetrical and unsymmetrical stress cycle respectively
本文以有效應力集中系數預測模型為基礎,分別建立了對稱循環和非對稱循環時焊接鋼結構s - n曲線的理論預測方法。By introducing the concept of the worst - case notch, the theory prediction model of the effective stress concentration factor for welded steel structures are established for symmetrical and unsymmetrical stress cycle respectively
本文在引入「最壞切口」概念的基礎上,分別建立了對稱循環和非對稱循環時焊接鋼結構有效應力集中系數的理論預測模型。Based on the investigation of research and application of concrete - filled tubular column to steel beam connections in china and abroad, according to engineering practice, six full - size specimens that the joints composed by concrete - filled square tubular column and i - shape steel beam divided as a and b groups have been tested under cyclic - loading in this paper. the three specimens of group a are connected by bolt - weld and the group b connected by welded at the end of beams
本文在總結分析了國內外關于鋼管混凝土框架節點研究與應用現狀的基礎上,以實際工程為背景,在國內首次進行了a 、 b兩組共6個足尺節點試件的低周反復循環加載試驗,其中a組三個試件梁端採用栓-焊連接; b組三個試件梁端為全對接焊接。分享友人