METHOD OF X-RAY FLUORESCENCE ANALYSIS OF WELD SEAM Russian patent published in 2009 - IPC G01N23/223 

FIELD: physics, measuring.

SUBSTANCE: use: for the X-ray fluorescence analysis of weld seam. At sampling strip surface of welded seam of oxide-coated film by means of rough emery paper, then on disk of emery paper the granularity 40 which have been cut out under the shape of the holder of the sample of a X-ray spectrometer, rub material of welded seam, this disk use as a radiator, carry out recording of intensity of analytical lines of a spotted device i (I_i) and stirring devices j (I_j), then in addition register intensity of an analytical line of a basic element of test In (I_B), find relations I_i/I_v, I_j/I_B and count the required content of spotted device (C_i) on regression equation: where a₀, a₁, a₂, a₃, a_ij - coefficients which pay off with the help of standard samples of metals and the alloys similar on a composition to analysed tests; M - number of stirring devices.

EFFECT: increase of of the analysis speed of welded seam.