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:
Mar. 16, 2004
Filed:
Jul. 02, 2002
Antonino Giorgio Cacace, West Glamorgan, GB;
Other;
Abstract
A method of producing a corrosion resistant ferrous product is disclosed. The product is produced by rolling a heated billet which comprises a mass of mild steel swarf in a stainless steel jacket. Two reducing agents are present in the jacket when the billet is heated. The first reducing agent is in the form of powdered aluminum, titanium turnings or other metal having a greater affinity for oxygen than chrome and which promotes the formation of CO rather than CO from air or oxygen which enters or evolves in the billet above about 800° C. The second reducing agent is in gaseous or vapour form substantially below that temperature. The second reducing agent may be provided by premixing with the swarf such substances as ammonium chloride or urea, which dissociate to form reducing gases when heated. Alternatively, the billet can be heated in a reducing furnace and the gas in the furnace may act as the second reducing agent.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile