Assertion: electrode's slag | /r/CapableOf | protect the weld
Facets:
value: from contamination
type: TRANSITIVE-OBJECT
Source sentences:
text: Once part of the weld pool, the slag floats to the surface and protects the weld from contamination as it solidifies.
text: This puddle at the same time melts the flux core, creating a shield from air, and at the same time produces a slag that protects the weld from contamination.