X-ray Fluorescence Spectrometry Of Samarium Cobalt Permanent Magnet And Its Application

Samarium cobalt permanent magnet is nineteen sixties gradually developed a kindof magnetic materials, permanent magnet having excellent temperature properties andcorrosion resistance of.In recent years, the research and application of samarium cobaltmagnet to cause people’s attention.Samarium cobalt permanent magnet componentsdirectly affects the quality of the SmCo permanent magnet, so the SmCo permanentmagnet chemical composition for rapid, accurate analysis is very important.Comparedwith traditional chemical analysis method, X-ray fluorescence analysis method are theadvantages of quick analysis speed can more timely guide the practical productionprocess.Because the instrument of high stability, X-ray fluorescence analysis method inaccuracy with the classical chemical methods and beauty.The main results are:1) X spectral distribution of X-ray tubes, fluorescent yield, transition ratio, spectralratio and Spectral Geometry Factors on fluorescence intensity calculated effect,discusses the monochromatic X-rays and multicolor X-ray excitation samples, primaryand secondary fluorescence intensity calculation formula. The samarium cobalt magnetelement absorption enhancement effects is understand, provides theory basis ofsamarium cobalt permanent magnet for quantitative analysis of the elements in theabsorption enhancement effects of mathematical correction.2) Ihe infection rules of granularity equality to analysis result is understand, thebasis of method of sample preparation obtain accurately analysis results is foud. Theresearch indicate:(1)when the powder of Samarium cobalt permanent magnet averagegranularity is14.53um,the effect of granularity basicly eliminate.(2) when the rubbingtime is8h,the distributing of Samarium cobalt permanent magnet is equality.3)X-ray fluorescence analysis is a relatively methods. Standard quality andquantity of samples is the main factors control the accuracy of quantitative analysis.As aresult of samarium cobalt permanent magnet no national standard samples, samariumcobalt permanent magnet based on the process comparison is more concerned withmaterial composition is the relative change of the actual situation, using sample formulato determine the reference sample, get rid of the troubled years of industry standard sample preparation problems.4) For the first time to oxygen analysis is introduced into the system, and analysesthe influence of oxygen, samarium cobalt permanent magnet system influence on theresult of the analysis. Theoretical analysis and experimental results indicate that, toconsider or ignore oxygen has no effect on samarium cobalt magnet system analysisresults5) Standard curve method of the software is used to establish standard curve.Detailed analysis of the interaction between elements, samarium cobalt permanentmagnet system targeted to introduce correct item. Using the theory of influencecoefficient method, the SFP method in software to calculate the coefficient of mutualinterference between matrix elements.Research results show that compared with thestandard curve method with theoretical influence coefficients after correction of Sm、Co、and Fe the average error by0.73%、1.29%and2.16%to0.42%,0.79%and1.32%, theresults can be improved.6) Basic parameter method and standard curve method advantages compared withthe theory of influence coefficient method is to use less of the stand sample can getsatisfactory result. Using the theory of basic parameters method software calculationtheory of strength and sensitivity coefficient diagram is established. The results showthat the three samples of basic parameter method in analysis of high iron and lowcopper samarium cobalt permanent magnet in Sm、Co、Cu、Fe and Zr, the average error is0.47%、0.42%、0.92%、1.05%and0.88%, high copper and low iron samarium cobaltpermanent magnet in Sm、Co、Cu、Fe and Zr mean error respectively0.43%、0.36%、1.00%、1.29%and0.86%.The analysis results can meet the nuclear High-based projectneed. Study results also indicate that basic parameters method is not affected by formand content of the sample.7) Using MFC and large database software (SQLSERVER) system as applicationsystem of data storage, exchange, query and management platform, and completed asamarium cobalt permanent magnet alloy query system development.