Title:
WELDING ELECTRODE FOR SHEETS OF ALUMINIUM OR STEEL, AND METHOD FOR PRODUCING THE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2019/141916
Kind Code:
A8
Abstract:
The invention relates to an electrode for welding sheets of steel or aluminium, with a conductivity greater than or equal to 90% IACS and made of an alloy consisting, by weight based on the total weight of the alloy, of chromium in a proportion higher than or equal to 0.1% and lower than 0.4%, between 0.02 and 0.04% of zirconium, lower than 0.015% of phosphorus, the remainder being copper and less than 0.1% of unavoidable impurities, the electrode structure advantageously comprising incoherent chromium precipitates, more than 90% of which have a projected surface area of less than 1 um2, the precipitates having a size of between 10 and 50 nm, the electrode having a fibre structure consisting of radial fibres having a thickness of less than 1 mm and a substantially central fibreless region that has a diameter of less than 5 mm. The invention also relates to a method for producing the electrode.
Inventors:
PRIMAUX FRANÇOIS (FR)
SOREAU THIERRY (FR)
DETREZ SAMUEL (FR)
BOUYER ALAIN (FR)
SOREAU THIERRY (FR)
DETREZ SAMUEL (FR)
BOUYER ALAIN (FR)
Application Number:
PCT/FR2019/000007
Publication Date:
June 25, 2020
Filing Date:
January 18, 2019
Export Citation:
Assignee:
LEBRONZE ALLOYS (FR)
International Classes:
C22F1/08; B22D11/00; B23K35/02; B23K35/30; B23K35/40; C22C9/00
Attorney, Agent or Firm:
CABINET BLEGER - RHEIN - POUPON (FR)
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