X-ray Fluorescence (XRF):
The X-ray fluorescence is a non-destructive process and hence, it
is used for applications where there is a need to maintain the
integrity of the sample. All raw materials and products such as
alloys, solders, sterling silver and gold bearing alloys are first
tested in X-Ray Fluorescence equipment. At United, an analysis using
XRF is done using three different kinds of XRF equipment where each
instrument specializes in measuring a specific combination of
metals. A strict quality control on silicon level is maintained
using one of these instruments. A preliminary scan of various levels
of elements in a refining lot are first determined using the XRF
equipment. Solder sheets are scanned for uniform distribution of
gold so that each solder piece has the correct amount of gold and
other ingredients. |