CAJ | 학술논문

深海脐带缆是连接上部控制装置和海底生产系统的生命线，其内每根由数十至数百根钢管对接焊成的内套钢管质量必须是无懈可击的。由于管-管对接焊接时存在特殊性，在焊接过程中较容易出现焊接缺陷，严重影响到整个脐带缆的工作性能。通过大量试验，对每根长12～40 m的钢管进行精密组对，并采用全位置脉冲TIG焊技术对无法转动的小直径钢管环缝进行焊接，焊接采用TIG焊一次焊接成形，确定了最佳的焊接工艺规范参数，获得了焊缝表面成形美观、根部焊透性好、接头质量可靠等性能优良的焊接接头。
심해제대람시련접상부공제장치화해저생산계통적생명선，기내매근유수십지수백근강관대접한성적내투강관질량필수시무해가격적。유우관-관대접한접시존재특수성，재한접과정중교용역출현한접결함，엄중영향도정개제대람적공작성능。통과대량시험，대매근장12～40 m적강관진행정밀조대，병채용전위치맥충TIG한기술대무법전동적소직경강관배봉진행한접，한접채용TIG한일차한접성형，학정료최가적한접공예규범삼수，획득료한봉표면성형미관、근부한투성호、접두질량가고등성능우량적한접접두。
The deep sea umbilical cable is the lifeline for connecting the topside control facilities and the undersea production system;the quality of each steel pipe in umbilical cable which consists of tens to hundreds of steel pipe butt welding must be impeccable. Because the particularity exists in tube-tube butt welding, the welding defects occur easily in welding course, which seriously affects the working performance of umbilical cable. Through a large number of tests, during precision group for each 12 m to 40 m steel pipe, the circumferential weld of small diameter steel pipe of unable to rotate was welded by full position pulse TIG welding process. It determined the best welding procedure specification parameters, and obtained perfect welded joints with good weld profile, good penetrability and excellent quality.