Question
Download Solution PDF_________ is used in Submerged Arc Welding process.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Submerged arc welding:
- Submerged arc welding is an arc welding process in which heat is generated by an arc which is produced between bare consumable electrode wire and the work-piece.
- The arc and the weld zone are completely covered under a blanket of granular, fusible flux which melts and provides protection to the weld pool from the atmospheric gases.
- The molten flux surrounds the arc thus protecting arc from the atmospheric gases.
- The molten flux flows down continuously and fresh flux melts around the arc.
- The molten flux reacts with the molten metal forming slag and improves its properties and later floats on the molten/solidifying metal to protect it from atmospheric gas contamination and retards cooling rate.
- A process of submerged arc welding is illustrated in Figure.
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