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:
Oct. 14, 1997
Filed:
Apr. 26, 1995
Applicant:
Inventors:
Norbert Gaag, Lauf, DE;
Peter Ruchel, Lauf, DE;
Assignee:
Diehl GmbH & Co., Nuremberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ; B21B / ;
U.S. Cl.
CPC ...
295277 ; 148432 ; 148435 ; 174 1705 ; 174 525 ; 420469 ; 420485 ;
Abstract
The invention relates to a method of manufacturing a copper-nickel-silicon alloy with a composition Cu (balance), Ni 1.5-5.5%, Si 0.2-1.05, Fe 0-0.5% and Mg 0-0.1% (all in percent by weight), and use of the alloy for pressure-englazable casings. The method permits an alloy with a very high elastic limit with very good conductivity and good cold reformability and differs from the conventional method of manufacturing such alloys by heating to about 950.degree. C. and fairly rapid cooling after a preceding cold rolling operation. An improvement in the properties can be achieved by ageing of the alloy at 300.degree. C. to 600.degree. C. for several hours.