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:
Sep. 03, 1991
Filed:
Oct. 02, 1990
Masao Tanabe, Osaka, JP;
Hiroshi Shirono, Habikino, JP;
Chugai Ro Co., Ltd., Osaka, JP;
Abstract
Disclosed is a method of controlling the temperature of a joining area between two different strip materials in a continuous strip processing line. In the case where a strip material after the joining area requires a nozzle pressure greater than that of a preceding strip material, the opening of a damper is initially gradually throttled, at a timing before the joining area passes through a predetermined location in a treating furnace, by an amount required for changing the nozzle pressure so that an optimum pressure of the preceding strip material is changed so that of the following strip material. The rotational speed of a recirculation fan is then raised to keep the nozzle pressure substantially constant, and the damper is rapidly opened to the opening before the throttling at a time the joining area passes through the predetermined location. In the case where a strip material after the joining area requires a nozzle pressure less than that of a preceding strip material, the damper opening is initially rapidly throttled at a timing the joining area passes through the predetermined location so that an optimum pressure of the preceding strip material is changed to that of the following strip material. The damper is then gradually opened to the opening before the throttling, and the rotational speed of the recirculation fan is gradually reduced to keep the nozzle pressure substantially constant.