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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING MOLDED ARTICLE DESIGNED FOR REDUCING ROTARY HEARTH
Document Type and Number:
Japanese Patent JP2003129140
Kind Code:
A
Abstract:

To provide a method for efficiently manufacturing a briquette-shaped molded article designed for a reducing rotary hearth, superior in a dropping strength during transportation and charging, and explosion resistance during heating.

The method for manufacturing the molded article designed for the reducing rotary hearth is characterized by charging a powdery raw iron material, a powdery solid reducing agent, free water, and materials including an organic-based binder or an inorganic-based binder, as needed, into a kneader, and mixing them so that the weight ratio of the free water to the total weight of the raw material can be 2% or more but less than 8%, (preferably more than 4% but less than 8%), and molding the mixture into elliptic briquettes by using a double-roll molding machine.


Inventors:
ICHIKAWA HIROSHI
Application Number:
JP2002130819A
Publication Date:
May 08, 2003
Filing Date:
May 02, 2002
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
C22B1/16; C21B13/10; (IPC1-7): C22B1/16; C21B13/10
Attorney, Agent or Firm:
Etsuichi Matsumoto (1 outside)