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. 18, 2003
Filed:
Feb. 12, 2001
Applicant:
Inventors:
Pieter Cornelis Van Eldijk, Ijmuiden, NL;
Frans-Benoni Lietaert, Gent, BE;
Assignee:
Corus Technology B.V., CA IJmuiden, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 3/704 ; C21B 1/10 ;
U.S. Cl.
CPC ...
C22C 3/704 ; C21B 1/10 ;
Abstract
The invention relates to a process for producing nodular cast iron with a high number of graphic nodules. This process comprises the following steps: preparing molten base iron for wasting castings of nodular cast iron; adding Mg to the molten base iron; inoculating the casting stream with a first inoculant when casting the cast iron into a casting mold. According to the invention, between the addition of the Mg and the inoculation of the casting stream, a preliminary inoculation using a further inoculant is carried out as an additional step. The invention also relates to a casting obtained by using this process.