自保護藥芯焊絲水下焊接裝置及工藝的研究.pdf

1、分類號UD璺密LV786027學(xué)校代號10561學(xué)號200230000201072華南理工大學(xué)學(xué)位論文自保護藥芯焊絲水下焊接裝置及工藝的研究黃鈞指導(dǎo)老師：工國苤塾援機械上程學(xué)院申請學(xué)位級別：碩論文提交同期：20055專業(yè)名稱：撾抖加工工提論文答辯日期：20056學(xué)位論文授予單位和幾期：華南理工大學(xué)答辯委員會主席：二壺蔓j!；姿蕊左堇一論文評閱人吞置、丕別覷援f華南理r=大學(xué)工學(xué)碩士學(xué)位論文AbstractThereareplentyof

2、petroleumandnaturalgasinseabed，moreandmoreoffshorestructuresarebeingfabricatedduetOhuman’Srequirementincreasingly，theUseofunderwaterweldingisontheincreaseItisimportanttoimproveqUality，efficiencYandconvenienceofUnderwater

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6、enitisusedunderwaterweldingAdeviceofunderwaterWirefeedingsystemwasdesignedonthebaseofmanyconditionsbeingstudiedAftertheprinciple，traits，cavityvolume，structureandmaterialoftheminitypeCapunderwaterweldinghadbeenresearched，

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