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:
May. 08, 1990
Filed:
Nov. 23, 1988
Applicant:
Inventor:
Jean-Francois Faure, Voiron, FR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420535 ; 148 / ; 148 / ;
Abstract
The invention relates to aluminium alloy parts having an improved fatigue strength and to their production process. These parts are made from an alloy containing by weight 11 to 22% silicon, 2 to 5% iron, 0.5 to 4% copper, 0.2 to 1.5% magnesium and having the characteristic of containing 0.4 to 1.5% zirconium. The process for obtaining the same consists of subjecting the alloy in the molten state to fast solidification, shaping, a heat treatment at between 480.degree. and 530.degree. C., hardening with water and tempering at between 150.degree. and 200.degree. C. These parts are more particularly used as rods and piston pins.