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:
Jun. 05, 2001
Filed:
Jan. 19, 2000
Applicant:
Inventor:
Kojiro Fuji, Osaka, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C21B 1/300 ;
U.S. Cl.
CPC ...
C21B 1/300 ;
Abstract
A method for manufacturing reduced iron pellets comprises the steps of heating iron oxide pellets incorporating carbonaceous material to yield reduced iron pellets having an apparent density of not more than 4.0 g/cm,, cooling the hot reduced iron pellets by using water at an average cooling rate between 1,500° C./min and 500° C./min, when the surfaces of the reduced iron pellets are cooled from 650° C. to 150° C. The method described above does not require expensive facilities for processing briquettes and can manufacture the reduced iron pellets having high degree of metallization, superior crushing strength, and an apparent density of not more than 4.0 g/cm,.