Manual

22
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PROBLEM M
When welding to ductile iron or cast iron, the
weld does not “stick” to the surface.
Remedy:
1. Remove all coatings before cleaning.
2. Clean the surface with a rasp or grinder to bright
 metal.Whengrinding,useanERICO-approved
wheel only.
3. Clean the surface with a safety solvent after
grinding or rasping.
4. Use CADWELD
®
XF-19 alloy welding material
(orange cap).
CADWELD
®
ONESHOTconnectionsdonotalways
follow the same rules as connections made with
graphite molds.
1.Noportionofthecablewithintheconnesof
the sleeve should be exposed.
2. Maximum depression under the riser (after
the slag has been removed) should be no lower
 thanthebottomofthecable.Lowerllindicates
excessive leakage of molten metal or improper
 positioningoftheCADWELDONESHOTmold.
CADWELD
®
ONE SHOT
Connections
Minimum
acceptable
Normal
Higher
than
normal
Field Situation Guide (continued)