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. 23, 1993
Filed:
Sep. 22, 1992
Applicant:
Inventors:
Vinci M Felix, Kennett Square, PA (US);
David A Wells, Newark, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72 38 ; 72364 ; 72257 ;
Abstract
The present invention relates to a process for extruding molybdenum-rhenium alloys into tubes or pipes. The invention is capable of high temperature extrusion of MoRe alloys, which comprise about 10 to 50 wt. % rhenium, into a seamless piper or tube. The steps of the process generally comprise fabricating a MoRe billet or blank which includes a pilot hole that extends along the longitudinal axis of the billet, heating the billet to a temperature of at least about 1300.degree. C., and extruding the heated billet by operation of an extrusion press.