The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 1980
Filed:
Mar. 02, 1979
Applicant:
Inventors:
Miroslav Pirner, Neuhausen am Rheinfall, CH;
Heinrich Zoller, Aesch, CH;
Heinz Bichsel, Neuhausen am Rheinfall, CH;
Assignee:
Swiss Aluminium Ltd., Chippis, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428654 ; 75141 ;
Abstract
Filler metal for welding AlZnMg type alloys raises the resistance to stress corrosion without increasing the susceptibility to exfoliation corrosion. The composition of the filler metal includes a copper addition which suppresses weld boundary corrosion while additions of manganese, titanium, chromium and zirconium inhibit weld cracking. High weld strengths are attained using the said filler metal.