Powder sample making mould assembly in X-luminoscope

Abstract

The invention discloses a powder sample making mould assembly in an X-luminoscope. The powder sample making mould comprises a base, a fixed base, a sample cup, a pressing sleeve and a sample withdrawal sleeve, wherein the base is connected with one end of the fixed base in a sleeving manner; the sample cup is connected with the other end of the fixed base in a sleeving manner; after the sample powder is injected, the sample cup is taken out, and the pressing sleeve covers the fixed base to make samples; the sample withdrawal sleeve is connected with the bottom of the base in a sleeving manner, the pressing sleeve is pressed downwards to ensure that samples and the base fall into the sample withdrawal sleeve. The powder sample making mould assembly is easy to operate, and the prepared pressing plates are uniform and ordered in specifications, so that measurement errors can be reduced, the experiment accuracy degree is improved, and the mixing of the samples and boric acid is inhibited so as to guarantee the consistency of the contents of the samples.

Description

technical field [0001] The invention belongs to the technical field of experimental equipment, and in particular relates to a mold assembly for powder sample preparation in an X-ray fluorescence instrument. Background technique [0002] As a relatively mature component analysis method, X-ray fluorescence spectrometer analysis is widely used in metallurgy, geology, environment, chemical industry, materials and other fields. The objects analyzed by X-ray fluorescence spectrometer are mainly block solid, powder and liquid. Among them, solid powder is the most analyzed one. Because many samples such as cement, coal, dust, etc. are themselves powders, irregularly shaped massive solids, such as various ores, are often crushed into powders because the direct analysis technology is still immature. Liquid samples can be put into liquid sample cups for analysis, but due to reasons such as inability to vacuumize, sometimes liquids are transformed into solids, and the results of some p...

AI Technical Summary

Problems solved by technology

However, the melting method also has disadvantages: the measurement intensity of light elements is reduced because the sample is diluted and absorbed by the flux; the sample preparation is complicated and takes a lot of time; the cost is also high

[0004] At present, the sample preparation is to use the sample ring to directly press the tablet without adding any adhesive, and the sample ring and the sample cannot be separated. Therefore, if there are many samples to be measured, multiple sample rings must be used, so there are the following points Disadvantages: Due to the error in the inner diameter of the sample ring itself, the error in the sample content is caused, so it brings a corresponding error to the measurement; no adhesive is added when the sample is pressed, and the sample is easily damaged during use and pollutes the measuring instrument; There is an error in the thickness value, resulting in inconsistent heights between the sample and the detector, resulting in measurement errors; the sample and boric acid are easily mixed together, resulting in inconsistent sample content

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