JFE has been granted a patent for a molten metal component estimation device. The device uses measurement information and model expressions to estimate component concentrations, including carbon concentration, in molten metal during a refining process. It can adjust component concentrations within a desired range based on estimation results. GlobalData’s report on JFE gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on JFE, Polymer electrolyte fuel cells was a key innovation area identified from patents. JFE's grant share as of March 2024 was 54%. Grant share is based on the ratio of number of grants to total number of patents.
Estimation device for molten metal component concentrations
A recently granted patent (Publication Number: US11966669B2) discloses a molten metal component estimation device and a method for estimating molten metal components in a refining facility during a blowing process. The device includes an input device for receiving measurement information, a model database storing model expressions and parameters, and a processor for estimating component concentrations of the molten metal based on the measurement information and model parameters. The processor can determine the model expression and parameters based on the estimation of carbon concentration and detect a critical carbon concentration in the molten metal. By adjusting the component concentration within a desired range, the device ensures the quality of the molten metal during the refining process.
The method described in the patent involves estimating component concentrations of molten metal by utilizing measurement information and model expressions related to the blowing process reaction. By estimating the carbon concentration and adjusting the component concentration within a desired range, the method ensures the quality of the molten metal during the blowing process. Additionally, the method can be used in the manufacturing process of molten metal by adjusting the component concentration based on the estimated values obtained through the estimation method. The inclusion of an intensity change rate of a spectrum resulting from an iron oxide reduction reaction in a slag in the measurement results enhances the accuracy of the estimation process, leading to improved control over the molten metal composition during refining.
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