MUMBAI, India, June 13 -- Intellectual Property India has published a patent application (202517049076 A) filed by Primetals Technologies Austria Gmbh; and Abp Induction Systems Gmbh, Linz, Austria, on May 21, for 'improved operation of an induction furnace.'
Inventor(s) include Baumgartner, Kerstin; Mohr, Markus; Schwarz, Gero; Umbrasko, Andrej; and Zahedi, Michael.
The application for the patent was published on June 13, under issue no. 24/2025.
According to the abstract released by the Intellectual Property India: "A planar rolled stock material (2) made of metal is heated in an induction furnace (1). The rolled stock (2) passes through the induction furnace (1) in a longitudinal direction (x). It extends transversely thereto from a first to a second rolled stock edge (3, 4). The induction furnace (1) has a plurality of module pairs (5) which, viewed in the longitudinal direction (x), follow one another sequentially and each have a first and a second induction module (6, 7). The induction modules (6, 7), as viewed in the transverse direction (y), are positioned at a respective initial position (p1*, p2*), so that the first induction modules (6) are arranged offset towards the first rolled stock edge (3) and the second induction modules (7) are arranged offset towards the second rolled stock edge (4). The induction modules (6, 7) are each supplied with electrical power via their own power supply device (8), which is assigned in a proprietary manner to the respective induction module (6, 7). A respective electrical target variable (I1*, I2*) is defined for each induction module (6, 7). It is monitored whether actual variables (I1, I2), with which the induction modules (6, 7) are operated, correspond with their respective target variables (I1*, I2*). In the event that only one actual variable (I11), with which one of the first induction modules (61) is operated, has a reduced value compared with its corresponding target variable (I11*), the target variables (I12* to I15*) for the remaining first induction modules (62 to 65) are increased, while maintaining the operation of all the second induction modules (71 to 75), so that any reduced heating of the rolled stock (2) caused by the reduced actual variable (I11) is compensated as much as possible. This applies to both those first induction modules that are arranged upstream of the first induction module (61) for which the actual variable (I11) has a reduced value compared to its corresponding target variable (I11*), as well as to the first induction modules (62 to 65) which are arranged downstream of that first induction module (61) for which the actual variable (I11) has a reduced value compared to its corresponding target variable (I11*)."
The patent application was internationally filed on Nov. 17, 2023, under International application No.PCT/EP2023/082206.
Disclaimer: Curated by HT Syndication.
