Title:
電磁連続鋳造における溶融金属レベルを測定する装置及びその方法
Document Type and Number:
Japanese Patent JP3602096
Kind Code:
B2
Abstract:
An apparatus and method for measuring the level of a free surface of molten metal in an electromagnetic continuous casting process using an AC electromagnetic field. A detection coil is provided to detect the sum of a magnetic field applied from an induction coil and an induced magnetic field based on eddy current in the molten metal. An arithmetic unit is provided to detect the surface level of the molten metal by removing a variation of the applied magnetic field with a variation in current to the induction coil from an output signal from the detection coil. The surface level of the molten metal can be accurately measured by determining whether a variation in the output of the detection coil results from a variation in the applied magnetic field or a variation in the surface level of the molten metal.
Inventors:
Kim Gowa
Orki yan
Kim Ho Young
Sim Don Yoon
Orki yan
Kim Ho Young
Sim Don Yoon
Application Number:
JP2001510807A
Publication Date:
December 15, 2004
Filing Date:
July 18, 2000
Export Citation:
Assignee:
Pohang Iron and Steel Shio., Eltidi.
Research Institute of Industrial Science and Technology
Research Institute of Industrial Science and Technology
International Classes:
B22D2/00; B22D11/16; B22D11/18; G01F23/26; (IPC1-7): G01F23/26; B22D11/16
Domestic Patent References:
| JP8145762A | ||||
| JP4309445A | ||||
| JP3024602B2 |
Attorney, Agent or Firm:
Mikio Yoshimiya