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:
May. 24, 1994
Filed:
Oct. 27, 1992
Takeshi Tada, Tokyo, JP;
Toshikazu Akiyama, Tokyo, JP;
Ryoichi Tanaka, Yokohama, JP;
Masao Kawamoto, Yokohama, JP;
Nippon Furnace Kogyo Kaisha, Ltd., Kanagawa, JP;
NKK Corporation, Tokyo, JP;
Abstract
The present invention relates to a steel heating furnace which permits free setting of an in-furnace temperature pattern or gradient as desired. A steel heating furnace 1 includes at least one or more burner systems of regenerative heating, each being arranged to supply a combustion air and exhaust a combustion gas through a regenerative bed. Those burner systems are disposed in each of plural zones which are defined within a single furnace body, or in each of unit furnaces 2. The unit furnaces 2 are interconnected to form a single furnace body. The amount of combustion may be controlled for each zones or each unit furnaces 2 to enable free variation of in-furnace temperature per zone or per unit furnace 2 so that a desired in-furnace temperature pattern gradient in the entire furnace 1 may be set easily. The steel heating furnace 1 may be constructed with a required length and in-furnace temperature pattern, by interconnecting the unit furnaces.