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. 19, 1981
Filed:
Mar. 29, 1978
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 48 ; 75 53 ; 75 58 ; 75129 ; 7513 / ;
Abstract
The present invention relates to a process for treating liquid steel for the manufacture of machine wire. All or part of the manganese is added to an extra-mild steel, obtained after refining by any steelmaking process, directly in the production apparatus to obtain the desired manganese content. The steel thus obtained is poured into a first ladle or into another pouring apparatus and carbon is added to the liquid mass in the first ladle and thereafter the metal obtained is poured into a second ladle and a given amount of, first, silicon and then aluminium is added. This process produces a machine wire which is more suitable for wiredrawing.