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Developing Techniques for Testing Magnetic Properties of Electric Steels: IV. Testing of Steel Sheets in Rolls (Review Article)

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Abstract

The paper considers difficulties in on-line quality tests of cold-rolled anisotropic electric steels supplied in rolls. Plausible causes of these difficulties and ways to eliminate these causes are discussed. Some existing techniques and facilities for measuring magnetic parameters of moving steel sheets [1–15] are described. All the facilities known at present (including those developed by Brockhaus and Siemens) are not suitable for one reason or another for testing quality of rolled steels supplied in rolls with good accuracy. In view of this and basing on the almost unambiguous relation between magnetic properties and crystallographic texture of steels, the paper suggests determining the crystallographic texture of moving sheets of coldrolled anisotropic electric steels by measuring maxima on curves of the normal magnetization component. An instrument for such an analysis of magnetic texture is described. First results of the use of this instrument at the cold-rolling mill of Verkh-Isetsk Steelworks are reported.

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Korzunin, G.S., Chistyakov, V.K. & Rimshev, F.F. Developing Techniques for Testing Magnetic Properties of Electric Steels: IV. Testing of Steel Sheets in Rolls (Review Article). Russian Journal of Nondestructive Testing 38, 195–211 (2002). https://doi.org/10.1023/A:1020696025936

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