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:
Mar. 14, 2017
Filed:
May. 20, 2013
Jfe Steel Corporation, Chiyoda-ku, Tokyo, JP;
Hideyuki Takahashi, Fukuyama, JP;
Nobuyuki Sato, Chiba, JP;
Kazuki Nakazato, Chiba, JP;
Motoki Takada, Chiba, JP;
JFE Steel Corporation, Tokyo, JP;
Abstract
Provided is a vertical annealing furnace, in which a heating zone and a soaking zone are communicated with each other in the upper part of the furnace, in which a part of the furnace other than the communicated parts is separated by a dividing wall, in which part of the furnace gas is suctioned into a refiner having a deoxidation device and a dehumidification device which is placed outside the furnace to decrease the dew point of the gas by removing oxygen and moisture from the gas and such that the resultant gas having a decreased dew point is returned into the furnace, in which a gas suction port into the refiner is located in the lower part of the connection part between the soaking zone and the cooling zone and in which one or more gas suction ports are located in the parts of the heating zone and/or the soaking zone outside of an area within 6 m in the vertical direction and 3 m in the longitudinal direction of the furnace from the steel strip entrance in the lower part of the heating zone.