main weld 中文意思是什麼
main weld
解釋
主焊縫-
Backing weld before making main wel back weld
打底焊道 -
The conclusion of reappearing analysis is that crane bridge be used as usual because main weld maximum stress of upper cover plate of main beam lower than yield limit though it higher than permissible stress. inner stress of secondary beam was over ultimate strength, and deforming is ultra big. so it was unfit for produce and secondary beam must be changed
再現分析得出的主要結論為：橋架的主樑上蓋板主焊縫的最大應力超過了許用應力，但小於屈服極限，可以繼續投入使用；副梁內部的應力遠遠超過了強度極限，變形特別嚴重，不能滿足生產要求，因此更換新的副梁；端梁內部的應力超過了屈服極限，小於強度極限，在應力較大的位置焊接補強板；投入使用后，要對整個橋架進行定期檢查。 -
The main features are that the back surface weiding seams are even, smooth and weld edge tidy, excellent in performances of welding technology and welding seam dynamics
主要特點是背面焊縫勻稱、光滑，焊趾整齊，焊接工藝性能及焊縫力學性能優良。 -
The main innovate point of the welding robot is that it realizes the automatic tracking of unleaded automatic weld and multiplayer weld
此種焊接機器人的主要創新點是，實現了無導軌自動焊接焊縫與多道焊的自動跟蹤。 -
The main contents include : with combination of z - n pid self - tuning formula and relay self - adaptation control methods, the pid parameters of weld area of furnace is given automatically
論文研究工作主要包括：結合z ? npid自整定公式和繼電自整定控制方法，自動整定加熱爐焊接區的pid參數。 -
Two main factors contribute to the increase : quantity of shaped steel and the section size of the tilted bar and the quality of weld
影響勁性混凝土柱抗震能力的兩個主要因素為:含鋼率和斜腹桿大小及焊接質量。 -
Abstract : main aspects concerning the mechanical cold expander for straight weld pipes located at zhujiang steel tube co., ltd., panyu, guangdong province are described, including working principle, structural features and process operation sequence. also described are the author ' s own comments on several specific issues with respect to the development of the mill
文摘:簡要介紹了廣東番禺珠江鋼管有限公司大口徑直縫焊管生產用機械式冷擴徑機的工作原理及結構特點、工藝運行程序，並對在研製過程中的幾個具體問題闡述了自己的觀點。 -
The results show that : the strength and fatigue lifetime of the outer casing including welding line can satisfy the design requirement. although the some parts of bearing has been yielded, the strength at the weld is large enough for requirement. and welding defect, indicted by sem analyses of failure section, is main reason affecting fatigue lifetime
分析結果表明：外機匣（包含焊縫）強度和壽命滿足設計強度和壽命的要求；軸承座的強度已經進入屈服階段，而軸承座及其焊縫處的壽命卻是滿足設計壽命要求；另外斷口的金相分析表明焊接缺陷的存在是影響疲勞壽命的主要原因之一，故需提高焊接技術，減少焊接缺陷的存在以提高焊接結構的壽命。
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