Epoxy Resin as a Binder in the Preparation of Rutile Coated Electrodes

Fernando C. Lage; Leandro S. Oliveira; Adriana S. Franca; Alexandre Q. Bracarense

doi:10.4028/www.scientific.net/AMM.798.419

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 798Epoxy Resin as a Binder in the Preparation of...

Epoxy Resin as a Binder in the Preparation of Rutile Coated Electrodes

Abstract:

Coated electrodes are used in manual welding, with the coating being comprised of a variety of ingredients, including the binder, usually sodium or potassium silicate. In recent studies aiming at waterproof electrodes, the usual binders were successfully replaced by hydrophobic polymers. In this study, the use of epoxidized soybean oil (ESO) as well as a commercial epoxy resin (CER) as binders in electrode coating formulations was evaluated in order to verify their suitability as replacements for silicates. The produced electrodes were evaluated for the quality of the weld. Results showed that the use of a CER added of potassium feldspar resulted in favorable weld microstructure, with production of acicular ferrite and martensite elimination. ESO based electrodes still need to be improved through flux modification to reduce carbon and hydrogen content in the weld metal.

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Periodical:

Applied Mechanics and Materials (Volume 798)

Pages:

419-423

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.798.419

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Online since:

October 2015

Authors:

Fernando C. Lage, Leandro S. Oliveira, Adriana S. Franca, Alexandre Q. Bracarense

Keywords:

Arc Welding, Coated Electrodes, Epoxidation, RenLam M, Soybean Oil

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