Sample preparation method for small size and irregular samples

Abstract

The present application discloses a clamping device and sample preparation method for small-sized and irregular samples. The spring between the main bodies, the steps of the sample preparation method are as follows: place the sample preparation mold on the thermal mounting sample stage, place the sample in the center of the sample preparation mold, and use a thermal mounting machine to perform thermal mounting sample preparation on it; after sample preparation The sample is demoulded to obtain a "T"-shaped sample; the test surface of the sample is ground until it is smooth and clean; the sample is placed in the holding device for direct-reading spectral analysis. The invention can better solve the problem that small-sized and irregular samples cannot be detected in the direct-reading spectrum, and reduces the requirements on the shape and size of the samples.

Description

technical field [0001] The application belongs to the field of elemental detection chemical analysis, and in particular relates to a sample preparation method for small-sized and irregular samples. Background technique [0002] Direct-reading spectroscopic analysis technology has been widely used in furnace detection and metallurgical analysis due to its high detection accuracy and fast analysis speed. However, in the actual detection process, it is often encountered that the shape of the sample is irregular or the sample diameter is smaller than the excitation hole of the direct-reading spectrum sample stage. At this time, it will be difficult to directly detect the sample. At present, for the detection of such small samples, the chemical detection of drilling cuttings is commonly used, which is time-consuming and laborious. However, the small sample detection fixtures on the market are only suitable for analyzing rods and linear products with relatively regular shapes, and...

AI Technical Summary

Problems solved by technology

However, in the actual detection process, it is often encountered that the sample is irregular in shape or the sample diameter is smaller than the excitation hole of the direct-reading spectrum sample stage. At this time, it is very difficult to directly detect the sample

At present, for the detection of such small samples, the chemical detection of drilling cuttings is commonly used, which is time-consuming and laborious. However, the small sample detection fixtures on the market are only suitable for analyzing rods and linear products with relatively regular shapes, and are not very suitable for samples with irregular shapes. Good fixed clamping, such as the patent CN205607846U discloses a small-diameter steel bar sample direct-reading spectrometer fixture, the two sides of the fixture base are respectively provided with a positioning screw hole communicating with the cylindrical groove, two positioning screw holes Horizontal and face-to-face setting, two screws are respectively screwed in the two positioning screw holes to fix the sample. It is difficult to fix irregular samples with two screws, and there is a certain safety hazard for small samples. It is difficult to sample and detect

Images