Method for measuring Fe coating weight of Fe-coated stainless st

Details Method for measuring Fe coating weight of Fe-coated stainless st Method for measuring Fe coating weight of Fe-coated stainless st

1993-10-25

1994-06-28

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Fluorescence

378 44, G01N 23223

Patent

active

053254163

ABSTRACT:
The surface of a stainless steel sheet before Fe-coating and the surface of the same stainless steel sheet after Fe-coating are analyzed by X-ray fluorescent analysis to determine the ratio of a fluorescent X-ray intensity I.sub.Cr b ascribable to CF to a fluorescent X-ray intensity I.sub.Fe b ascribable to Fe before Fe-coating, I.sub.Cr b/I.sub.Fe b, and the ratio of a fluorescent X-ray intensity I.sub.Cr a ascribable to Cr to a fluorescent X-ray intensity I.sub.Fe a ascribable to Fe after Fe-coating, I.sub.Cr a/I.sub.Fe a, and the resulting values are substituted in the following equation to calculate an Fe coating weight W (g/m.sup.2).

REFERENCES:
patent: 5081658 (1992-01-01), Imai et al.
H. F. Beeghly, "An X-Ray Method for Determining Tin Coating Thickness", Apr. 1950, vol. 97, No. 4, 152-157.

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