Coated welding electrode containing chromium

Details Coated welding electrode containing chromium Coated welding electrode containing chromium

1977-03-23

1978-12-26

Schafer, Richard E.

Electric heating

Metal heating

By arc

148 23, 148 24, 148 26, 219137R, 428385, 428386, 428387, 21914523, B23K 924, B23K 3500

Patent

active

041317840

ABSTRACT:
The present invention relates to a coated welding electrode containing at least 0.5% of Cr based on the total weight of the welding electrode and comprising a metal core and a coating flux composition. In this welding electrode, the content of Na and K components in the coating flux calculated as (Na.sub.2 O + K.sub.2 O) is reduced below 1% based on the total weight of the coating flux composition, whereby amounts of fumes generated at the welding step, especially the amount of toxic soluble Cr, are suppressed and minimized.

REFERENCES:
patent: 3472686 (1969-10-01), Hillert

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