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:
Nov. 22, 1983
Filed:
Mar. 25, 1982
Kiichi Narita, Kobe, JP;
Akitsu Tomita, Takatsuki, JP;
Nozomu Katagiri, Kobe, JP;
Kazuyuki Seki, Kobe, JP;
Tetuo Sato, Kobe, JP;
Minoru Kitamura, Nishinomiya, JP;
Shozo Kawasaki, Kobe, JP;
Yasuo Kanazuka, Hyogo, JP;
Kobe Steel, Ltd., Kobe, JP;
Abstract
A method for converter blow end-point control which comprises carrying out waste gas analyses on a continuous or intermittent basis in a final stage of the blow and, based on decarburization rate data (waste gas information) obtained from said waste gas analysis, determining the end-point of the blow where the carbon content of the bath equals a target carbon content. The method is characterized by the use of the decarburization rate equation: ##EQU1## which is a differential equation taking account of the delay time (.tau.) of said waste gas information which is a period of time from the time-point of occurrence of a decarburization reaction in the converter till the time when it is detected as said decarburization rate data, and an equation: