Defects in a hydraulic pipe weld may occur during or after welding. For instance, improper manipulation, poor spacing of the weld, poor edge preparation, insufficient protection of the weld metal pool, impurities, improper cleaning, and oxidation all can lead to weld defects. Often, these defects being costly, are ignored, but repair can be even more expensive, if not approached in a systematic way. Here, we will delve into methods of repairing common defects.
- Welding tool
- Stainless steel grinding wheel
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Instructions
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1
Locate the defect and establish its size.
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2
Remove the defect, by grinding with a stainless steel grinding wheel.
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3
Use a shielded metal arc process to deposit weld beads where you removed metal. Use stringer beads until the gap in the pipe is filled, then complete the weld with two passes of a single, wider weave.
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4
Use the stainless steel grinding wheel to grind away slag and make the re-welded surface uniform with the rest of the pipe.