There are many operation steps,long analysis time and unstable results when traditional chemical methods are used to determine the main components in compound tungsten carbide.In this paper,the mixed flux of lithium tetraborate and lithium metaborate was used as solvent and lithium bromide as release agent for melting sample preparation.The effects of pre oxidation time,mass ratio of sample to solvent,and amount of release agent on the detection method were investigated.The optimal conditions for sample preparation were obtained:pre oxidation time 60min,mass ratio of sample to solvent 1:25,and amount of release agent 1.0ml.20 standard samples of Ti,Ta,W oxides with different gradients were prepared α The coefficient is used to correct the matrix effect,and the standard curve of X-ray fluorescence spectrum analysis is established.The linear correlation coefficients of the calibration curves are greater than 0.991.CK29 and CK32 samples were selected for precision inspection,and the relative standard deviation(RSD,n=11)of each component in the compound carbide was less than 1%.The results showed that the method was accurate and reliable.
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