Title:
SINTERED STEEL MANUFACTURING PROCESS
Document Type and Number:
WIPO Patent Application WO/1996/000800
Kind Code:
A1
Abstract:
A process for manufacturing a high-quality sintered steel characterized by providing a microwave generator between a raw material charge unit in a Dwight-Lloyd sintering machine and an ignition furnace therein, (1) heating a superficial portion of a raw material to 120-600 �C with a microwave alone, or (2) heating a superficial portion of a raw material to 50-200 �C with a microwave, and then to 150-600 �C by sucking hot blast, or (3) heating a superficial portion of a raw material to 150-600 �C by using a microwave and hot blast at once, and then drying/heating/sintering the superficial portion of the material to a high temperature speedily in a short period of time without causing the pseudo particles in the superficial portion of the sintered material to be broken.
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Inventors:
HOSOTANI YOHZOH
KONNO NORIMITSU
NAKAI HIROKI
UMEZU AKIFUMI
KONNO NORIMITSU
NAKAI HIROKI
UMEZU AKIFUMI
Application Number:
PCT/JP1995/001301
Publication Date:
January 11, 1996
Filing Date:
June 29, 1995
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C22B1/16; C22B1/20; F27B21/06; F27B21/08; F27D99/00; (IPC1-7): C22B1/20; F27B21/08
Foreign References:
| JPS5424682B2 | 1979-08-23 | |||
| JPS6191798U | 1986-06-14 | |||
| JPH06212293A | 1994-08-02 |
Other References:
See also references of EP 0767242A4
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