Investigation of the possibility of using additional parameters in pulsed magnetic testing of rolled steel sheets in a manufacturing technological flow

The laws of distribution of the normal, radial, and azimuthal components of the remanent magnetization field strength and the length of magnetized section for two-sided local pulsed magnetization of rolled steel sheets of 08kp steel annealed at various temperatures are investigated. It is shown that the maxima of these components and the length of the positive part of the normal component can be used for testing the quality of annealing of the above-mentioned steel. The effect of displacement of a sheet on the testing results is estimated in determining the arithmetical and geometrical means of the parameters measured. The use of multiple correlation analysis significantly increases the correlation coefficients.