| 摘要 |
PURPOSE:To form an electrically reliable power supply line by anchoring a tensile strength line by a metallic sleeve and a metallic core rod and welding an aluminum joint parts coupled with the metallic sleeve with an aluminum pressure resisting part of a submarine optical cable on the basis of inert gas metal arc (MIG) welding. CONSTITUTION:One end of the aluminum joint parts 14 which is a connection part is constituted like a ring so as to be slightly thick 14A. Since one end of the joint parts 14 is made thick welding part, i.e. fillet weld part, the heat capacity of the point is increased. Therefore, a welding point P can be prevented from sudden temperature rise due to heat generated at the welding time and the MIG welding arc-discharging in gas atmosphere to weld the welding part can be adopted. Consequently, the welding part is almost prevented from corrosion after the MIG welding and sputtering, the arc of the MIG welding is extremely stable and the welded part is characterized by high ductility and intensity. |
