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:
Sep. 22, 1998
Filed:
Feb. 28, 1997
Sue Troup-Packman, Newbury Park, CA (US);
Hughes Electronics Corporation, El Segundo, CA (US);
Abstract
A process for plating aluminum alloy substrates such as aluminum pistons with an iron-cobalt alloy comprising the steps of (a) plating on the aluminum alloy substrate a thin layer of nickel from an electroless nickel bath; and (b) plating on the nickel layer a layer of iron-cobalt alloy from an iron-cobalt electroplating bath. The iron-cobalt layer is not subject to the corrosion problems inherent in a substantially pure iron-plated coating nor the excessive hardness, costliness, and environmental concerns related to the use of nickel as the primary plated layer. The iron-cobalt electroplating bath is cost-effective and can be utilized in a totally closed loop plating system. The resulting iron-cobalt plated, aluminum alloy parts evidence good adhesion, wear, thermal conductivity, and corrosion-resistant properties.