Improving flux coatings for welding rod electrodes

LKAB Minerals manufacture products specifically for use in welding rods that fulfil the exact standards this very technical application requires.

flux coatings for welding rod electrodes

MicaCal, a specialised grade within our MicaFort brand range, has a long-established history of use in covered rutile electrodes for mild steel.

Benefits Calcined Mica

Muscovite Mica has long been used in covered rutile electrodes for mild steel; the advantages of incorporating MicaCal into the flux coatings include:

Controlled calcination process

LKAB Minerals has developed a carefully controlled calcination process which retains the resilience of Mica flakes whilst achieving almost complete dehydroxylation. This process combined with careful control of raw material results in MicaCal grades of calcined Mica designed specifically for low moisture – low hydrogen electrodes.

MicaCal can be used in various steel alloy electrodes where normal Muscovite Mica is precluded because of chemically combined moisture. Use of MicaCal at 5 to 25% of flux formulations as an alternative to feldspar can give major improvements in manufacture, handling and usage of such electrodes.

Typical applications

Our customers typically use our MicaCal products for: