How to Capture Weld Slag in a Pipe
Welding is a way of joining two pipes together, forming a long-lasting bond. However, welding results in the creation of slag, an unsightly welding by-product that does nothing to contribute to the strength of the bond. Working with a high-quality, flux-cored wire ensures that slag will fall off the inside of your pipe. But to be sure, you should use a narrow chipping hammer to knock the slag off the inside of your pipe.
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Instructions
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Place your pipe on top of a shallow tub, to collect the slag that falls out of your pipe.
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Lightly tap the outside of your pipe around the surface of your weld. The majority of the slag from inside your pipe will fall out.
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3
Insert your chipping hammer into your pipe, and lightly tap at the weld point. Any remaining slag should fall out.
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