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.

Date of Patent:
May. 07, 1996

Filed:

Oct. 24, 1994
Applicant:
Inventors:

Matti Honkaniemi, Tornio, FI;

Veikko Juntunen, Tornio, FI;

Jorma Kemppainen, Tornio, FI;

Risto Pellikka, Tornio, FI;

Eero Rattya, Tornio, FI;

Assignee:

Outokumpu Steel Oy, Tornio, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
420 71 ; 148605 ; 75 1066 ; 266162 ; 266217 ;
Abstract

The invention relates to a method and device for producing stainless steel, comprising methods for creating a ferroalloy, such as ferrochromium, and for further processing the alloy in order to produce a desired stainless steel. According to the invention, the melt obtained from the ferro alloy production unit (1) is transferred at least partly to a ferroalloy processing unit (2) arranged in between the ferroalloy production unit (1) and the stainless steel production unit (5); in the said processing unit (2), the composition of the ferroalloy is adjusted to be suitable for the production of stainless steel.


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