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Patent Searching and Data


Title:
METHOD FOR CONTROLLING TEMPERATURE PATTERN IN CONTINUOUS HEATING FURNACE
Document Type and Number:
Japanese Patent JPH08291333
Kind Code:
A
Abstract:

PURPOSE: To heat a steel material to be heated to the temp. of a prescribed pattern with good accuracy by controlling the temp. pattern in the width direction of a heating furnace, in the case of successively heating plural steel materials in the continuous heating furnace.

CONSTITUTION: The steel materials are heated from the upper and the lower sides thereof by spouting combustion flame in the lengthwise direction of the steel materials 1 from burners 5, 6 arranged at the upper and the lower parts holding the steel materials in between on both side walls of the heating furnace while shifting the steel materials 1 to be heated in the width direction thereof in the continuous heating furnace. In this case, the quantity of air supplied to the burners 5, 6 is more than that necessary to burn fuel and an excess oxygen flame is formed to heat the steel 1 materials. In the case of heating the steel materials 1 in the required temp. pattern out of an inclining pattern of making end parts of the steel materials 1 high temp., a concave pattern of making both edge parts thereof high temp. and a convex pattern of making the center part thereof high temp., etc., as to the distribution of temp. in the lengthwise direction of the steel materials, the fuel is charged so as to form the required temp. pattern from plural fuel charging Ports 6 arranged in the width direction of the heating furnace and burnt with the excess oxygen in the heating flame of the burner to raise the temp.


Inventors:
HAYASHI JUNICHI
MURAKAMI HIDEKI
SAITO TOSHIAKI
Application Number:
JP1995000095240
Publication Date:
November 05, 1996
Filing Date:
April 20, 1995
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
C21D11/00; C21D1/52; C21D9/00; F27B9/02; F27B9/36; (IPC1-7): C21D9/00; C21D1/52; C21D11/00; F27B9/02; F27B9/36
Attorney, Agent or Firm:
茶野木 立夫 (外1名)