(weld mark, flow line) A flaw on a molded plastic article marking the meeting of two flow fronts within the mold. Because the two fronts may have cooled and skinned over before meeting, or had too little time in the molten state for interdiffusion of molecular segments across the interface,...
It is well known that the weldline reduces the mechanical performance of the conventional injection molded parts. Yet, systematic researches and reports on weldline strength of thin-wall molded parts are still insufficient. This study investigates the influence of processing conditions on the weldline...
So far, both spiral and longitudinally welded pipes manufactured to the main-line project specifications have been tested. Girth weldson the test section have been made by submerged-arc and uphill low hydrogen methods as well as downhillcellulosictechniques. To ensure the probability ofpremature fail...
TYPE III CREEP CRACKING AT MAIN STEAM LINE WELDS K.G.SEDMAN, ...R.M.GRIFFIN, inFailure Analysis Case Studies II, 2001 5.4Importance of weld defects It should be emphasized that this cracking occurred without the involvement of weld flaws. Whenever cracking is found in an operating plant, ...
The field tests of a spherical tank (3000 m 3 ) verified that the robotic system could improve the efficiency and stability of inspection operations and replace manual inspection with automated weld line recognition and weld path planning. 展开 关键词: climbing robot inspection robot path planning ...
Using Dynaform software and SVR supporting vector machine arithmetic,the effects of strength factor ratio,thickness ratio,pressure-pad-force value and spread,brake bead resistance value and friction element on the move-ment of weld line were analyzed by seting up models.The results show that when ...
[translate] a现在寝室有人,不是很方便! Now the bedroom has the human, is not very convenient! [translate] a단, Weld Line은 한도견본에 준함 只,焊缝在极限丝绸帆布跟随 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 ...
PURPOSE:To prevent the generation of an error in copying a weld line without requiring a large-scale device by determining the magnitude in the luminance just before the molten pool and making the min. value of reflected light and the deviation of an arc center to coincide by a servocontrol...
This root region is frequently large grained in nature, and has the poorest fracture toughness and the critical load bearing section is at the weld fusion line. Thus, partially penetrating welds are not used where high weld strength is needed, fully penetrating welds are preferred (Figure 8(b)...