PROCEDURE FOR CONTROL OVER MAGNETIC AND MECHANICAL PROPERTIES OF THIN SHEET ROLLED METAL Russian patent published in 2011 - IPC G01N27/60 G01N3/00 

FIELD: metallurgy.

SUBSTANCE: there is measured distribution of residual lengthwise and cross stresses and profile of hot-rolled strip and there are determined deviations of magnetic and mechanical properties from average values in width and length of strip by equations of kind: ΔMS_ij=BΔσ_ij +CΔH_ij, where ΔMS_ij is deviation of magnetic and mechanical properties from average value in width and length of strip, B, C are coefficients relating to grade of steel; Δσ_ij is deviation of residual stresses in width and length of strip from average value; ΔH_ij is deviation of thickness of hot rolled strip in width and length of strip from average value; i,j are coordinates of width and length of strip. Further, there is determined actual distribution of magnetic and mechanical properties in width and length of strip by formula: MS^A _ij=MS^C + ΔMS_ij, where MS^A _ij is actual distribution of magnetic and mechanical properties in width and length of strip, MS^C is calculated or measured average level of magnetic and mechanical properties.

EFFECT: control over magnetic and mechanical properties in production stream for length and width of strips, raised accuracy of prognosis of evaluation and control of magnetic and mechanical properties of electro-technical isotropic steel in production stream.

8 dwg, 1 ex