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Title:
PRODUCTION OF STEEL PLATE FOR METAL SAW BASE PLATE
Document Type and Number:
Japanese Patent JP3543200
Kind Code:
B2
Abstract:

PURPOSE: To produce a special steel material having high strength and high toughness, required of a metal saw base plate to be welded to a teeth part of high speed steel, under a large lot production system.
CONSTITUTION: A steel plate for a metal saw base plate, having a composition consisting of, by weight, 0.30-0.60% C, ≤0.40% Si, ≤0.60% Mn, 1.00-3.00% Cr, 0.40-1.00% Mo, 0.20-0.40% V, ≤0.010% P, ≤0.006% S, 0.010-0.10% Al as acid soluble Al, and the balance Fe with inevitable impurities, is produced by means of a steel strip production line consisting, at least, of a continuous casting stage, a hot rolling stage, and a continuous acid pickling stage. At this time, the above hot rolling stage is performed under the conditions of 1200-1350°C slab heating temp., 800-900°C finishing temp., 400-600°C coiling temp., and ≥98% total draft in the course between roughing and finish rolling, by which a hot rolled steel strip of bainitic single phase structure can be formed.


Inventors:
Katsuyuki Iihara
Toshiro Yamada
Tomoaki Iwayama
Application Number:
JP17480894A
Publication Date:
July 14, 2004
Filing Date:
July 04, 1994
Export Citation:
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Assignee:
Nisshin Steel Co., Ltd.
International Classes:
B23D63/00; C21D8/02; C21D9/46; C22C38/00; C22C38/24; (IPC1-7): C21D9/46; C22C38/00; C22C38/24
Domestic Patent References:
JP49088713A
JP62250158A
JP59029650B1
Attorney, Agent or Firm:
Kenji Wada
Koji Hagiwara