Open AccessDetermination of moisture resistance of covered electrodes according to PN-EN ISO 14372
Author(s) -
Katarzyna Mielnicka,
Adrian Wolski,
Aleksandra Świerczyńska,
Grzegorz Rogalski,
Dariusz Fydrych
Publication year - 2019
Publication title -
welding technology review
Language(s) - English
Resource type - Journals
eISSN - 2449-7959
pISSN - 0033-2364
DOI - 10.26628/wtr.v91i7.1049
Subject(s) - electrode , materials science , moisture , cellulose , welding , hydrogen storage , composite material , metal , hydrogen , metallurgy , chemistry , analytical chemistry (journal) , chromatography , organic chemistry , alloy
Moisture present in the electrode covering is one of the sources of diffusible hydrogen in welded joints. In order to study the diffusible hydrogen content in deposited metal, a stand for moisturizing covered electrodes, in accordance with the PN-EN ISO 14372 standard, was built. After the stand was completed, a test of moisturizing the electrodes was carried out and measurements of the diffusible hydrogen content in deposited metal using the mercury method (according to PN-EN ISO 3690) were conducted. The research was aimed at verifying the correctness of the operation of test stand and indirect determination of the influence of storage of rutile-cellulose and cellulose electrodes under fixed conditions on the degree of moisturizing of the weld metal. Both tested electrode grades belong to the group of electrodes with a standard covering.
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